Piston type jigger capable of adjusting amplitude on line

Abstract

The utility model discloses a piston type jigger capable of adjusting amplitude on line, which comprises a piston type jigger, and an amplitude adjusting device is arranged between a connecting rod of the piston type jigger and a speed reducer of the piston type jigger. The amplitude adjusting device comprises a transmission shaft, a box body fixedly connected with the transmission shaft, a sliding block connected in the box body in a sliding mode and a driving shaft fixedly connected to the sliding block, and a driving unit used for driving the sliding block to slide in the box body in the radial direction of the transmission shaft is arranged on the box body. Due to the fact that the driving unit is arranged on the box body and can rotate along with the box body, when the driving unit adjusts the position of the driving shaft, operation of the driving motor does not need to be stopped, operation can be carried out in real time, equipment operation does not need to be stopped when the amplitude of the piston type jigger is adjusted, production continuity is guaranteed, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal preparation machinery technical field especially relates to a piston type jig that can on -line adjustment amplitude. BACKGROUND

[0002] The piston type jig is a kind of coal preparation equipment commonly used in coal preparation plant, is used to screen raw coal, uses the water flow of up and down fluctuation and separates raw coal into coal gangue, medium coal and clean coal.Piston type jig is through piston to drive water flow up and down movement, and then the raw coal through water flow is sorted the mechanical.

[0003] The amplitude of water flow up and down movement is amplitude, the piston of existing piston type jig is through motor to drive speed reducer, and then through crank connecting rod mechanism to drive piston to move up and down, since the distance between the two rotary shafts of crank is fixed, so the distance of piston up and down reciprocating motion is fixed, so the amplitude of water flow is unadjustable. Or need to adjust the distance between the rotary shafts after stopping to realize the adjustment of the distance of piston reciprocating motion, thereby adjusting the amplitude of water flow.

[0004] The optimum amplitude of different kinds of raw coal is different, and when the amplitude needs to be adjusted according to the corresponding raw coal or production requirement, the piston type jig with unadjustable amplitude cannot be realized, and the existing piston type jig with adjustable amplitude also needs to stop the equipment operation, and then the corresponding adjustment is carried out, thereby affecting the continuity of production, and the adjustment needs to consume labor and time, so that the production efficiency is reduced.

[0005] The patent with publication number CN206064603U discloses a piston type jig, including several connected unit machine bodies, the upper part of unit machine body is provided with a partition plate, the partition plate separates the upper part of unit machine body into first water cavity and second water cavity, piston body is arranged in the first water cavity, each piston body is connected with a pair of eccentric wheels, piston shaft is connected between eccentric wheel and piston body, the piston shaft is driven to move up and down by the rotation of eccentric wheel, and then pulls piston to reciprocate up and down, since the eccentric distance of eccentric wheel is fixed, so the distance of piston reciprocating motion is fixed, so the amplitude cannot be adjusted.

[0006] The patent with publication number CN113731622A also discloses a piston type jig, including machine body, sieve plate arranged in the upper part of machine body, separation cavity arranged in the lower part of machine body and power chamber arranged in separation cavity and fixedly connected with machine body, piston is arranged in power chamber, driving device for driving piston to move along power chamber is fixedly arranged outside machine body, cam of driving device drives slide frame to move up and down, and then piston is pulled to reciprocate up and down through slide rod, since the shape and size of cam are fixed, the position of its rotating shaft is also fixed, so the distance of piston reciprocating motion driven by it is also fixed, leading to the amplitude also cannot be adjusted. Practical new content

[0007] The utility model discloses a piston jigging machine of on -line adjustable amplitude makes piston jigging machine when adjusting amplitude not need to stop the equipment operation to guarantee the continuity of production, improve production efficiency.

[0008] To realize above-mentioned purpose, the utility model adopts technical scheme is:

[0009] A piston jigging machine of on -line adjustable amplitude, including piston jigging machine body, the connecting rod of jigging machine body and the speed reducer of jigging machine body are equipped with amplitude adjustment device between, the amplitude adjustment device includes transmission shaft, with the fixed connection of transmission shaft's box, the sliding block of sliding connection in the box and the drive shaft of fixed connection on the sliding block, the drive shaft is parallel with transmission shaft, the top end of drive shaft and connecting rod are rotatably connected, transmission shaft and the output end of speed reducer are transmission connection, transmission shaft and the mounting plate of the top of jigging machine body are rotatably connected, the box is equipped with the drive unit for sliding block in the box along the radial of transmission shaft is driven to slide.

[0010] Further, the drive unit includes a reduction motor fixedly connected to the box and a lead screw rotatably connected to the box, the lead screw is in transmission connection with the reduction motor, the sliding block is in threaded connection with the lead screw, the axis of the lead screw is consistent with the sliding direction of the sliding block.

[0011] Further, the box is provided with a strip-shaped hole, the drive shaft is disposed in the strip-shaped hole, and the strip-shaped hole is consistent with the direction of the lead screw.

[0012] Further, the transmission shaft is sleeved with a conductive slip ring, the rotating part at the center of the conductive slip ring is fixedly connected with the transmission shaft, the shell of the conductive slip ring is fixedly connected with the machine box of the jigging machine, and the reduction motor is electrically connected with the control box of the jigging machine through the conductive slip ring.

[0013] Further, the conductive slip ring is a via conductive slip ring, and the model of the conductive slip ring is HD100185-0610.

[0014] Further, the reduction motor is a step motor driven reduction motor.

[0015] Further, the mounting plate is located between the conductive slip ring and the box, the transmission shaft is provided with a radial wire outlet hole between the conductive slip ring and the mounting plate, the transmission shaft is provided with a wire hole in the axial direction, the wire hole is in communication with the inside of the box, and the wire of the reduction motor is connected with the conductive slip ring after passing through the box, the wire hole and the wire outlet hole in sequence.

[0016] The utility model has the positive effect that:

[0017] The utility model discloses an improvement on the basis of the existing jigging machine, amplitude adjusting device is arranged between the connecting rod and the speed reducer of jigging machine, and amplitude adjusting device includes transmission shaft, box, sliding block and drive shaft, and the top of connecting rod is rotatably connected with drive shaft, and the output end of speed reducer is drivingly connected with transmission shaft. The speed reducer drives transmission shaft and box to rotate, and further drives sliding block and drive shaft to rotate around transmission shaft, and further drives the upper end of connecting rod to rotate around transmission shaft. The distance between drive shaft and transmission shaft is adjusted through the drive unit, thereby adjusting the distance between the top of connecting rod and transmission shaft, the distance of reciprocating motion of connecting rod up and down is adjusted, and the distance of reciprocating motion of piston up and down is adjusted, thereby realizing the adjustment of water surface amplitude in jigging chamber. Since the drive unit is arranged on the box and can rotate with the box, the drive unit does not need to stop the operation of driving motor when adjusting the position of drive shaft, and can be adjusted in real time, so that the piston jigging machine does not need to stop the operation of equipment when adjusting amplitude, thereby ensuring the continuity of production and improving production efficiency. The transmission shaft is provided with a conductive slip ring, which can ensure the normal power supply of the speed reducer when the speed reducer rotates with the box, and prevent wire winding. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is Figure 1 The right view of it;

[0020] Figure 3 It is Figure 1 The top view of it;

[0021] Figure 4 It is Figure 1 The partial enlarged view of I part in it;

[0022] Figure 5 It is Figure 2 The partial enlarged view of II part in it;

[0023] Figure 6 It is Figure 3 The partial enlarged view of III part in it;

[0024] Figure 7 It is the schematic view of amplitude adjusting device from the shaft end of drive shaft;

[0025] Figure 8 It is Figure 7 The left view of it;

[0026] Figure 9 It is Figure 8 The sectional view of A-A part in it;

[0027] In the drawing:

[0028] 1. Reducer; 2. Amplitude adjustment device; 3. Drive motor; 4. Mounting plate; 5. Connecting rod; 6. Transmission shaft; 7. Conductive slip ring; 8. Bearing seat; 9. Housing; 10. Bearing body; 11. Drive shaft; 12. Strip hole; 13. Lead screw; 14. Slider; 15. Reducer motor; 16. Piston; 17. Wire outlet hole; 18. Wire hole. DETAILED DESCRIPTION

[0029] For the convenience of description, in the following description, the direction consistent with the output shafts at both ends of the driving motor 3 is referred to as "transverse", and the direction perpendicular to the output shafts in the horizontal plane is referred to as "longitudinal".

[0030] Example 1

[0031] like Figures 1 to 3 As shown, the current jig machine body includes a chassis, and a plurality of jig chambers are arranged inside the chassis. Each jig chamber is provided with a water pressure chamber, and a piston 16 is provided in the water pressure chamber.

[0032] The chassis is equipped with air chambers on both sides of each jigging chamber, each of which is equipped with a vertical connecting rod 5. Crank arms are fixedly connected to both sides of the piston 16, and the lower ends of the connecting rods 5 are hinged to the corresponding crank arms. A drive motor 3 is installed at the top of the chassis at the position corresponding to each jigging chamber. Drive motor 3 is a dual-shaft motor with both output shafts oriented horizontally. Each output shaft is connected to a reducer 1, and the output shaft of reducer 1 is connected to the top of the corresponding connecting rod 5.

[0033] When the drive motor 3 rotates, it drives the connecting rod 5 to reciprocate up and down through the reducer 1, which in turn drives the piston 16 up and down. Driven by the piston 16, water flows back and forth between the jigging chamber and the pressure water chamber, causing the water surface in the jigging chamber to fluctuate. This in turn causes the raw coal on the screen at the top of the jigging chamber to float in the fluctuating water flow, thus achieving coal sorting. The amplitude of the fluctuation of the water surface in the jigging chamber is affected by the flow rate of water between the jigging chamber and the pressure water chamber. Since the cross-sectional area of ​​the pressure water chamber (i.e., the area of ​​the piston 16) is fixed, the amplitude is affected by the distance the piston 16 reciprocates up and down. The greater the distance the piston 16 reciprocates, the greater the amplitude, while the smaller the distance the piston 16 reciprocates, the smaller the amplitude. Therefore, if the amplitude of the water surface in the jigging chamber is to be changed, one way is to change the distance the piston 16 reciprocates.

[0034] The utility model adopts the above approach to achieve the change of amplitude. A piston jig with online amplitude adjustment is improved on the basis of the above jig body.

[0035] Combine Figures 5 to 9As shown, the connecting rod 5 and the reducer 1 are provided with an amplitude adjusting device 2, the amplitude adjusting device 2 comprises a longitudinal transmission shaft 6, a box body 9 fixedly connected with the transmission shaft 6, a sliding block 14 slidingly connected in the box body 9 and a longitudinal driving shaft 11 fixedly connected on the sliding block 14. The driving shaft 11 is parallel with the transmission shaft 6, and the driving shaft 11 is rotationally connected with the connecting rod 5 through a bearing body 10 fixedly connected on the top end of the connecting rod 5. The transmission shaft 6 is drivingly connected with the output end of the reducer 1, and the transmission shaft 6 is rotationally connected with the mounting plate 4 on the top of the jig body through a bearing seat 8 fixedly connected on the mounting plate 4. The box body 9 is provided with a driving unit for driving the sliding block 14 to slide along the radial direction of the transmission shaft 6 in the box body 9.

[0036] The driving shaft 11 and the sliding block 14 are integrally formed by machining the same piece of raw material into a Z-shaped profile. Figure 9 As shown.

[0037] When the driving motor 3 operates, the transmission shaft 6 is driven to rotate by the reducer 1, the box body 9 is driven to rotate around the axis of the transmission shaft 6 by the transmission shaft 6, the sliding block 14 and the driving shaft 11 are driven to rotate around the transmission shaft 6 by the box body 9 rotating around the transmission shaft 6, and the upper end of the connecting rod 5 is driven to rotate around the transmission shaft 6.

[0038] The distance between the driving shaft 11 and the transmission shaft 6 is adjusted by the driving unit, so as to adjust the distance between the top end of the connecting rod 5 and the transmission shaft 6, and further adjust the radius of the driving shaft 11 rotating around the transmission shaft 6, so that the distance of the connecting rod 5 reciprocating up and down is adjusted, and the distance of the piston 16 reciprocating up and down is adjusted, thereby realizing the adjustment of the water surface amplitude in the jigging chamber.

[0039] The driving unit is arranged on the box body 9 and can rotate with the box body 9, so that the driving unit can adjust the position of the driving shaft 11 without stopping the operation of the driving motor 3, and can be adjusted in real time, so that the piston jigging machine does not need to stop the operation of the equipment when adjusting the amplitude, thereby ensuring the continuity of production and improving the production efficiency.

[0040] Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is that:

[0042] The driving unit comprises a reduction motor 15 fixedly connected outside the box body 9 and a lead screw 13 rotationally connected in the box body 9, both ends of the lead screw 13 are rotationally connected with the box body 9, one end of the lead screw 13 is drivingly connected with the reduction motor 15 through a shaft coupling, the sliding block 14 is threadedly connected with the lead screw 13, the lead screw 13 is perpendicular to the axis direction of the transmission shaft 6, and the sliding block 14 slides along the axis direction of the lead screw 13.

[0043] The box 9 is provided with a strip-shaped hole 12 on one side, the driving shaft 11 is arranged in the strip-shaped hole 12, and the strip-shaped hole 12 is consistent with the direction of the lead screw 13.

[0044] When the speed reducer motor 15 drives the lead screw 13 to rotate, the lead screw 13 drives the sliding block 14 to slide, thereby driving the driving shaft 11 to slide along the strip-shaped hole 12, so as to realize the adjustment of the distance between the driving shaft 11 and the transmission shaft 6. The lead screw 13 and the sliding block 14 are in threaded transmission, and have a reverse self-locking function, that is, only the sliding block 14 can be driven to move by the lead screw 13, and the sliding block 14 cannot drive the lead screw 13 to rotate, thereby preventing the sliding block 14 from driving the lead screw 13 when the speed reducer motor 15 stops running, so that the distance between the driving shaft 11 and the transmission shaft 6 changes, and the adjusted amplitude is unstable.

[0045] The speed reducer motor 15 is a step motor driven speed reducer motor 15. Since the piston 16 is connected with the connecting rods 5 at both ends, and the top ends of the connecting rods 5 are provided with driving units, the step motor can accurately control the number of revolutions, so that the distance between the two groups of driving shafts 11 and transmission shafts 6 is synchronously changed, and the change of the distance can be accurately controlled, and the piston 16 can be inclined.

[0046] Embodiment 3

[0047] The difference between this embodiment and embodiment 2 is that:

[0048] The transmission shaft 6 is sleeved with a conductive slip ring 7, the conductive slip ring 7 is a via conductive slip ring, and the model of the conductive slip ring 7 is HD100185-0610. The rotating part at the center of the conductive slip ring 7 is fixedly connected with the transmission shaft 6 in penetration, the shell of the conductive slip ring 7 is fixedly connected with the top of the machine box of the jigging machine, and the speed reducer motor 15 is electrically connected with the control box of the jigging machine through the conductive slip ring 7.

[0049] The mounting plate 4 is located between the conductive slip ring 7 and the box 9, the transmission shaft 6 is provided with a radial wire outlet hole 17 between the conductive slip ring 7 and the mounting plate 4, the transmission shaft 6 is provided with a wire hole 18 in the axial direction, the wire hole 18 is in communication with the inside of the box 9, and the wires of the speed reducer motor 15 are connected with the conductive slip ring 7 after sequentially penetrating the wire hole 18, the wire outlet hole 17 and the wire hole 18 which are correspondingly arranged on the box 9, and then connected with the control box of the jigging machine.

[0050] The conductive slip ring 7 can ensure the normal power supply of the speed reducer motor 15 when the speed reducer motor 15 rotates with the box 9, and prevent the wires from being wound.

[0051] The above-described embodiments are more detailed and specific, express the preferred embodiments of the present application, and are only used to illustrate the technical ideas and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, but not only limited to the present application, and the patent range of the present application cannot be limited by the present embodiment, that is, any equivalent changes or modifications made according to the spirit disclosed by the present application, without departing from the structure of the present application, the internal improvement of the system and the change between the subsystems, transformation, etc., are still within the patent range of the present application.

Claims

1. A piston-type jig with an adjustable amplitude in-line, comprising a jig body, characterized in that, The connecting rod (5) of the jigging machine body and the reducer (1) of the jigging machine body are provided with an amplitude adjusting device (2), the amplitude adjusting device (2) comprises a transmission shaft (6), a box (9) fixedly connected with the transmission shaft (6), a sliding block (14) slidingly connected in the box (9), and a driving shaft (11) fixedly connected on the sliding block (14), the driving shaft (11) is parallel to the transmission shaft (6), the driving shaft (11) is rotatably connected with the top end of the connecting rod (5), the transmission shaft (6) is drivingly connected with the output end of the reducer (1), the transmission shaft (6) is rotatably connected with the mounting plate (4) at the top of the jigging machine body, and the box (9) is provided with a driving unit for driving the sliding block (14) to slide in the box (9) along the radial direction of the transmission shaft (6).

2. A piston-type jig according to claim 1, wherein The driving unit comprises a reduction motor (15) fixedly connected on the box (9) and a lead screw (13) rotatably connected in the box (9), the lead screw (13) is drivingly connected with the reduction motor (15), the sliding block (14) is threadedly connected with the lead screw (13), and the axis of the lead screw (13) is consistent with the sliding direction of the sliding block (14).

3. A piston-type jig according to claim 2, wherein The box (9) is provided with a strip-shaped hole (12), the driving shaft (11) is arranged in the strip-shaped hole (12) in a penetrating mode, and the strip-shaped hole (12) is consistent with the direction of the lead screw (13).

4. A piston-type jig according to claim 2, wherein The transmission shaft (6) is provided with an electrically conductive slip ring (7), the rotating part at the center of the electrically conductive slip ring (7) is fixedly connected with the transmission shaft (6) in a penetrating mode, the shell of the electrically conductive slip ring (7) is fixedly connected with the machine box of the jigging machine, and the reduction motor (15) is electrically connected with the control box of the jigging machine through the electrically conductive slip ring (7).

5. A piston and plate hopper according to claim 4 wherein, The electrically conductive slip ring (7) is a via hole electrically conductive slip ring, and the model of the electrically conductive slip ring (7) is HD100185-0610.

6. A piston-type hopper according to claim 2, wherein The reduction motor (15) is a step motor driven reduction motor (15).

7. A piston-type jig according to claim 4, wherein The mounting plate (4) is located between the electrically conductive slip ring (7) and the box (9), the transmission shaft (6) is provided with a radial wire outlet hole (17) between the electrically conductive slip ring (7) and the mounting plate (4), the transmission shaft (6) is provided with a wire hole (18) in the axial direction, the wire hole (18) is in communication with the inside of the box (9), and the wires of the reduction motor (15) are connected with the electrically conductive slip ring (7) after sequentially penetrating through the box (9), the wire hole (18) and the wire outlet hole (17).

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