• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A layered sand-gravel screening machine includes a rack body, a screening mechanism, a crank slider mechanism and two spring squeezing mechanisms. A driving motor is fixedly mounted on a receiving frame, and a screening frame is driven by the crank slider mechanism to move in a reciprocating manner. First squeezing springs are mounted between the front ends of sliding rails and the receiving frame. Second squeezing springs are mounted between the receiving frame and the screening frame. Third section squeezing springs are mounted between a support bracket and the tail ends of the sliding rails. The squeezing springs generate a reverse squeezing force under the driving of the crank slider mechanism, so that the receiving frame and the screening frame move fast relatively to screen and separate sand and gravel. The device has the advantages of compact structure, low cost, easy operation and the like, and can greatly reduce the labor and improve the production efficiency.
    公开号:NL2024633A
    申请号:NL2024633
    申请日:2020-01-09
    公开日:2020-08-13
    发明作者:Li Zhifeng；Zhao Jialei；Zhang Limin；Zhao Yongqiang
    申请人:Univ Shaanxi Technology；
    IPC主号:
    专利说明:

    Layered Sand — Gravel Screening Device Technical Field The present invention belongs to the technical field of mechanical transmission and relates to a layered sand-gravel screening machine. Background With the rapid development of nowadays society, the gradual rising demands of people for a better life and the growing population size, a large number of houses need to be built, and sand and gravel are essential raw materials for the construction of the houses. However, the sand and the gravel must be screened because of their different sizes and shapes.
    In relatively developed districts, equipment with higher automation is often used for screening and separation. However, this type of equipment is expensive, relatively large in volume, and difficult to maintain. Therefore, rural people often cannot buy or rent large- sized screening mechanisms under the limitation of economic conditions during the construction of the houses, and often separate the sand and the gravel manually, which consumes a lot of time and labor.
    Therefore, a layered sand-gravel screening machine is proposed. A crank slider mechanism is combined with spring squeezing mechanisms to form an intermediate transmission part, which can quickly screen the sand and the gravel. The layered sand- gravel screening machine has the advantages of simple and compact structure, low cost, easy use and the like.
    Summary The technical solution adopted by the present invention is as follows: A layered sand-gravel screening machine includes a rack body, a screening mechanism, a crank slider mechanism and spring squeezing mechanisms. The crank slider mechanism is mounted on a right sliding rail on the rack body 1. A driving motor 13is fixedly mounted on a receiving frame 4 through a motor seat 7. A screening frame 3 is fixedly mounted on a support bracket 2 and is driven by the crank slider mechanism to move in a reciprocating manner. The spring squeezing mechanisms are symmetrically arranged in two sliding rails and cooperate with the reciprocating movement of the crank slider mechanism to generate a squeezing force to further drive the receiving frame 4 and the screening frame 3 to move relatively in a reciprocating manner.
    The screening mechanism includes the support bracket 2, the screening frame 3, the receiving frame 4 and two screws 15. The support bracket 2 is of a symmetric structure. Each side is composed of a threaded hole 2-1, a front pin post 2-5, a rear pin post 2-2, a sliding block 2-4 and a side pin post 2-3. The screening frame 3 is fixedly mounted on the threaded holes 2-1 of the support bracket 2 through the screws 15. The sliding blocks 2- 4 of the support bracket 2 may slide in the right sliding rail. The receiving frame 4 is of a symmetric structure. Each side is composed of a receiving plate 4-1, a sliding block 4-2, a front guidepost 4-3, a rear guidepost 4-5 and two threaded holes 4-4 which are all symmetrically arranged on both sides of the front end of the receiving frame 4. The receiving plate 4-1 has a certain inclination angle, to facilitate the outflow of screened sand and gravel. The driving motor 13 is fixedly mounted on the receiving frame 4 and moves along with the receiving frame 4. The crank slider mechanism includes the motor seat 7, a crank 8, a connecting rod 9, two M8 bolts 12, the driving motor 13 and four M6 bolts 14. The motor seat 7 is composed of a threaded hole 7-1, a threaded hole 7-2, an unthreaded hole 7-3 and four motor mounting holes. The driving motor 13 is fixedly mounted on the corresponding four motor mounting holes in the motor seat 7 through the four M6 bolts 14. The crank 8 is connected to an output shaft of the driving motor 13 through a key. The connecting rod 9 is composed of an unthreaded hole 9-1, an unthreaded hole 9-2 and a rod body. The unthreaded hole 9-1 on the connecting rod 9 is connected with a pin post on the crank 8, and the unthreaded hole 9-2 is connected with the side pin post 2-3 of the support bracket
    2. The spring squeezing mechanisms include the rack body 1, two first section squeezing springs 5, two second section squeezing springs 10 and two third sectionsqueezing springs 11. The right sliding rail on the rack body 1 is composed of a front-end pin post 1-1, a rear-end pin post 1-2, a sliding slot 1-3, a front notch 1-4 and a rear notch 1-5. The features of the left sliding rail are the same as those of the right sliding rail, and the left sliding rail and the right sliding rail are symmetrically arranged on two transverse sides of the rack body 1. One end of each first section squeezing spring 5 is mounted on the front-end pin post 1-1 of the right sliding rail of the rack body 1, and the other end of the first section squeezing spring 5 is mounted on the front guide post 4-3 of the receiving frame 4. One end of each second section squeezing spring 10 is mounted on the corresponding rear guidepost 4-5 of the receiving frame 4, and the other end of the second section squeezing spring 10 is mounted on the front pin post 2-5 of the support bracket 2. One end of each third section squeezing spring 11 is mounted on the rear pin post 2-2 of the support bracket 2, and the other end of the third section squeezing spring 11 is mounted on the rear-end pin post 1-2 of the right sliding rail of the rack body 1. The same spring device is arranged on the left sliding rail on the rack body 1.
    The present invention has the beneficial effects that: according to the layered sand- gravel screening machine, the motor serves as a driving source, and the crank slider and the squeezing springs form a transmission mechanism that drives the reciprocating movement in the screening mechanism, thereby realizing a screening function. The device has the advantages of compact and simple structure, easy operation, low cost and the like. Screening of sand and gravel in different sizes can be realized by adjusting the shapes and sizes of hole bodies of the screening frame.
    Brief Description of the Drawings Fig. 1 is an overall structural diagram of a layered sand-gravel screening machine; Fig. 2 is a structural diagram of a rack body in a layered sand-gravel screening machine; Fig. 3 is a structural diagram of a receiving frame in a layered sand-gravel screening machine; Fig. 4 is a structural diagram of a support bracket in a layered sand-gravel screening machine;
    Fig. 5 is a structural diagram of a motor seat in a layered sand-gravel screening machine; and Fig. 6 is a structural diagram of a connecting rod in a layered sand-gravel screening machine.
    Detailed Description The present invention is described in detail below with reference to the drawings.
    As shown in Fig. 1, a layered sand-gravel screening machine includes a rack body, a screening mechanism, a crank slider mechanism and spring squeezing mechanisms.
    A screening frame 3 is fixed on a support bracket 2 and is driven by the support bracket 2 to slide together. The crank slider mechanism is arranged on a right sliding rail on the rack body 1, and a driving motor 13 drives a crank 8 to rotate, so as to drive the support bracket 2 to move in a reciprocating manner. The spring squeezing mechanisms are symmetrically arranged in the left and right sliding rails, and the reciprocating movement of the crank slider mechanism squeezes springs to further drive a receiving frame 4 and the screening frame 3 to relatively move to realize a screening function.
    As shown in Fig. 2 and Fig. 3, the right sliding rail on the rack body 1 is composed of a front-end pin post 1-1, a rear-end pin post 1-2, a sliding slot 1-3, a front notch 1-4 and a rear notch 1-5. The features of the left sliding rail are the same as those of the right sliding rail, and the left sliding rail and the right sliding rail are symmetrically arranged on the other side of the rack body 1. The receiving frame 4 is of a symmetric structure, and the right half portion thereof is composed of a receiving plate 4-1, a sliding block 4-2, a front guidepost 4-3, a rear guide post 4-5 and four threaded holes 4-4. The sliding blocks 4-2 on the receiving frame 4 are arranged in the sliding rails on the rack body 1, and a squeezing force generated by the spring devices drive the receiving frame 4 to move in a reciprocating manner.
    As shown in Fig. 4, the support bracket 2 is of a symmetric structure, and the right half portion thereof is composed of a threaded hole 2-1, a front pin post 2-5, a rear pin post 2-2, a sliding block 2-4 and a side pin post 2-3. The sliding blocks 2-4 slide on the sliding rails of the rack body 1. First section squeezing springs 5 are mounted betweenthe front-end pins 1-1 of the rack body 1 and the front guideposts 4-3 of the receiving frame 4. Second section squeezing springs 10 are mounted between the front pins 2-5 on the support bracket 2 and the rear guideposts 4-5 of the receiving frame 4. Third section squeezing springs 11 are mounted between the rear pins 2-2 and the rear-end 5 pins 1-2 on the rack body 1. The spring devices generate the squeezing force through the reciprocating movement of the crank slider mechanism, to further drive the receiving frame 4 and the screening frame 3 to relatively move in a reciprocating manner. As shown in Fig. 5 and Fig. 6, a motor seat 7 is composed of a threaded hole 7-1, a threaded hole 7-2, an unthreaded hole 7-3 and four motor mounting holes. The motor seat 7 is fixed on the receiving frame 4 through the threaded hole 7-1 and the threaded hole 7-2. The driving motor 13 is mounted on the motor seat 7 to drive the crank 8 to rotate to further drive a connecting rod 9 to move in a reciprocating manner. The connecting rod 9 is composed of an unthreaded hole 9-1, an unthreaded hole 9-2 and a rod body. The unthreaded hole 9-1 on the connecting rod 9 is connected with a pin post on the crank 8. The screening frame 3 is fixedly mounted on the support bracket. The unthreaded hole 9-2 of the connecting rod 9 is connected to the side pin post 2-3 of the support bracket. Under the driving of the connecting rod 9, the screening frame 3 moves in the reciprocating manner.
    A working process of the present invention is as follows: The driving motor 13 is fixed on the receiving frame 4 through the motor seat 7, and drives the crank 8 to rotate. The connecting rod 9 is connected with the screening mechanism to drive the screening mechanism to realize the reciprocating movement. The first squeezing springs 5 are mounted between the front ends of the sliding rails and the receiving frame 4. The second squeezing springs 10 are mounted between the receiving frame 4 and the screening frame 3. The third section squeezing springs are mounted at the tail ends of the support bracket 2 and the sliding rails. The squeezing force is generated under the driving of the crank slider mechanism, so that the receiving frame 4 and the screening frame 3 move fast relatively to screen and separate materials.
    The working principle of the present invention is as follows:
    The driving motor 13 is used as a power source, and the crank slider mechanism is used as an intermediate transmission mechanism, so as to drive the screening frame 3 to move in the reciprocating manner.
    Meanwhile, the middle of the crank slider mechanism is combined with the spring squeezing mechanisms, so that power obtained by the screening frame 3 may be reversely transmitted onto the receiving frame 4 by virtue of the squeezing springs to realize the relatively fast movement of the receivingframe 4 and the screening frame 3.
    权利要求:
    Claims (4)
    [1]
    A layered sand-gravel screening machine, consisting of a rack body, a screen mechanism, a crank slide mechanism and spring squeeze mechanisms, wherein the crank slide mechanism is mounted on one side of slide rails on the rack body (1); a drive motor (13) is mounted on a pick-up frame (4) via a motor seat (7); a screen frame (3) is mounted on a support bracket (2) and is driven by a crank slide to move back and forth; the spring squeeze mechanisms are symmetrically arranged in two sliding slots and cooperate with the reciprocating movement of the crank slide mechanism to generate a squeezing force to further drive the take-up frame (4) and the screen frame (3) to move relatively.
    [2]
    The layered sand-gravel screening machine according to claim 1, wherein the screening mechanism consists of the support bracket (2), the screen frame (3), the take-up frame (4) and two screws (15); the support bracket (2) has a symmetrical structure and its right half portion consists of a threaded hole (2-1), a side pin (2-3), a rear pin (2-2), a sliding block (2- 4) and a front pin (2-5); the screen frame (3) is fixedly mounted on the two threaded holes (2-1) of the support bracket (2) through the screws (15); the sliding blocks (2-4) of the support bracket (2) can slide in the right sliding rail; the pick-up frame (4) is of a symmetrical structure and the right half portion thereof consists of a pick-up plate (4-1), a sliding block (4-2), a front guide bar (4-3), a rear guide bar (4-5) and four threaded holes (4-4) all of which are symmetrically arranged on both sides of the front end of the receiving frame (4); the receiving plate (4-1) has a predetermined angle of inclination to facilitate the outflow of sieved sand and gravel; and the drive motor (13) is fixedly mounted on the pick-up frame (4), and moves with the pick-up frame (4).
    [3]
    3. The layered sand-gravel screening machine according to claim 1, wherein the crank sliding mechanism consists of the motor seat (7), a crank (8), a connecting rod (9), two M8 bolts {12}, the drive motor {13) and four
    M6 bolts (14); the motor seat (7) consists of a threaded hole (7-1), a threaded hole (7-2), a non-threaded hole (7-3) and four motor mounting holes; the drive motor (13) is attached to four associated motor mounting holes in the motor seat (7) by the four M6 bolts (14); the engine seat (7) is mounted on the take-up frame (4) by the two M8 bolts (12); the crank (8) is connected to an output shaft of the drive motor (13) via a key; the connecting rod (9) consists of a non-threaded hole (9-1), a non-threaded hole (9-2) and a rod body; the unthreaded hole (9-1) on the connecting rod (9) is connected to a pin on the crank (8), and the unthreaded hole (9-2) is connected to the side pin (2-3) of the support bracket (2).
    [4]
    The layered sand-gravel screening machine according to claim 1, wherein the spring pinch mechanisms comprise the rack body (1), two first section pinch springs (5), two second section pinch springs (10) and two third section pinch springs (11); the right sliding rail on the rack body (1) consists of a front pin (1-1), a rear pin (1-2), a sliding slot (1-3), a front notch (1-4 ) and a notch on the back (1-5); the characteristics of the left slide rail are the same as those of the right slide rail, and the left slide rail and the right slide rail are symmetrically arranged on two transverse sides of the rack body (1); one end of each first pinch spring (5) is mounted on the front pin (1-1) of the right sliding rail of the rack body (1), and the other end of the first pinch spring (5) is mounted on the corresponding front guide bar (4-3) of the receiving frame (4); one end of every second pinch spring (10) is mounted on the rear guide bar (4-5) of the take-up frame (4), and the other end of the second pinch spring (10) is mounted on the front pin (2- 5) of the support bracket (2); one end of every third pinch spring (11) is mounted on the rear pin (2-2) of the support bracket (2), and the other end of every third pinch spring (11) is mounted on the rear pin (1 -2) of the right sliding rail of the rack body (1); and the same spring arrangement is provided on the left slide rail on the rack body (1).
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