Chain connecting pin dismounting device

Abstract

The utility model discloses a chain connecting pin dismounting device which comprises a working table, supporting legs are vertically and fixedly connected to the periphery of the bottom of the working table, universal wheels are arranged at the ends, away from the working table, of the supporting legs, a pair of supporting frames are oppositely arranged on the working table, the supporting frames on the two sides are connected through a threaded driving rod, and a driving motor is arranged on the supporting frame on one side. An output shaft of the driving motor is connected with the threaded driving rod; the threaded driving rod is movably connected with a one-way hydraulic device, the threaded driving rod rotates to drive the one-way hydraulic device to do linear motion, the telescopic direction of a piston rod in the one-way hydraulic device faces the workbench, one end of the piston rod is connected with a pressing rod, and a plurality of through holes are formed in the positions, opposite to the one-way hydraulic device, of the workbench. A collecting mechanism is arranged at the bottom of the workbench opposite to the through hole. According to the utility model, the connecting pin between the chain rings can be quickly and efficiently disassembled and assembled when the chain rings are added.

Description

Technical Field

[0001] The utility model belongs to the technical field of chain repair, and in particular relates to a chain connecting pin disassembly device. Background Art

[0002] The belt feeder is a machine widely used in bulk material conveying systems in industries such as coal, metallurgy, construction, and chemicals. The belt feeder transports the continuously variable transmission connected to the drive roller through a transmission chain to achieve the purpose of transshipment. In the actual operation process, the belt and the belt are often stretched and lengthened due to the long operation cycle of the belt and the belt, and the original transmission chain length cannot meet the transmission requirements. The current solution is to add new chain links to the original transmission chain to meet the transmission requirements. In the process of disassembling the chain, the original method of removing the connecting pins was to swing a sledgehammer to smash it, but it is often difficult to remove the chain link connecting pins, which is time-consuming and labor-intensive. At the same time, there are great safety hazards in the smashing process.

[0003] At the same time, this method of disassembling the connecting pin can easily cause the connecting pin to deform, and even cause stress inside the connecting pin. In severe cases, the connecting pin can easily break, thus affecting subsequent use. Utility Model Content

[0004] The utility model aims to provide a chain connecting pin disassembly device, which can quickly and efficiently complete the disassembly of the connecting pins between chain links when adding chain links.

[0005] The technical solution adopted by the utility model is that the chain connecting pin disassembly device comprises a workbench, support legs are vertically fixed around the bottom of the workbench, a universal wheel is arranged at one end of the support leg away from the workbench, a pair of support frames are arranged oppositely on the workbench, the support frames on both sides are connected by a threaded driving rod, and a driving motor is arranged on one side of the support frame, and the output shaft of the driving motor is connected to the threaded driving rod;

[0006] A one-way hydraulic device is movably connected to the threaded drive rod, and the one-way hydraulic device is driven to perform linear motion by the rotation of the threaded drive rod. The extension and retraction direction of the piston rod in the one-way hydraulic device is toward the workbench, and a pressure rod is connected to one end of the piston rod. Several through holes are opened on the workbench relative to the position of the one-way hydraulic device, and a collecting mechanism is arranged at the bottom of the workbench relative to the through holes.

[0007] The utility model is also characterized in that:

[0008] The support frame is a rectangular frame with an opening at the lower end, and the bottom of the support frame is fixedly connected to the workbench.

[0009] The driving motor is fixedly connected to the supporting frame via a suspension frame.

[0010] A pair of auxiliary rods are also arranged between the support frames on both sides. The pair of auxiliary rods are respectively located on both sides of the threaded driving rod, and both ends of the auxiliary rods are respectively fixedly connected to the corresponding support frames.

[0011] A slider is provided on the threaded driving rod, the threaded driving rod passes through the slider and is threadedly connected to the slider, and a one-way hydraulic device is fixedly connected to the bottom of the slider;

[0012] A pair of auxiliary rods both penetrate the slider and are movably connected with the slider.

[0013] The centers of the plurality of through holes are distributed in a straight line along the linear motion direction of the one-way hydraulic device, and the diameters of the plurality of through holes are all different.

[0014] The workbench is provided with fixing mechanisms on both sides of the through hole, the fixing mechanisms comprising a driving block fixedly connected to the workbench, a threaded hole is provided on the driving block, a screw is passed through the threaded hole, one end of the screw is connected to the driving assembly, and the other end is movably connected to the fixing block;

[0015] The fixing mechanism also includes a limiting block connected to the workbench, and the fixing block is located between the driving block and the limiting block.

[0016] The fixing block is wedge-shaped at one end close to the limiting block.

[0017] The collecting mechanism comprises a collecting shovel, which is fixedly connected to the bottom of the workbench. The bottom of the collecting shovel is inclined, and the bottom of the collecting shovel is in an inverted trapezoid from high to low. The bottom edge of the inclined surface of the bottom of the collecting shovel is connected to a storage box.

[0018] The cross section of the storage box is arc-shaped.

[0019] The beneficial effects of the utility model are:

[0020] (1) The chain connecting pin disassembly device of the utility model fixes the chain through a fixing mechanism on a workbench, and then uses a one-way hydraulic device to drive a pressure rod to gradually apply pressure to the connecting pin, so that the connecting pin falls off from the chain link and passes through the through hole and falls into the collection mechanism, which greatly improves the efficiency of the workers in disassembling the connecting pin and reduces the original work intensity.

[0021] (2) The fixing mechanism of the chain connecting pin removal device of the utility model inserts the fixing block between the sprockets of the chain by rotating the screw rod, thereby fixing the chain and preventing the chain from being deviated and causing damage to the chain itself when the connecting pin is removed, thereby reducing the risk of damage to the chain when the connecting pin is removed.

[0022] (3) The chain connecting pin disassembly device of the utility model can cope with the disassembly of connecting pins of chains of different sizes by opening a row of through holes of different diameters on the workbench, thereby improving the application scenarios of the device.

[0023] (4) In the chain connecting pin disassembly device of the utility model, the two sides of the collecting shovel are gathered toward the center of the storage box and the bottom is tilted downward, so that the disassembled pin shafts can be collected into the storage box. Combined with the arc-shaped bottom of the storage box, it is very convenient for the operator to remove the pin shaft, thereby improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the chain connecting pin disassembly device of the utility model;

[0025] Figure 2 It is a top view of the chain connecting pin disassembly device of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the fixing mechanism in the chain connecting pin disassembly device of the utility model;

[0027] Figure 4 It is a structural schematic diagram of a collecting mechanism in a chain connecting pin disassembly device of the utility model.

[0028] In the figure, 1. workbench, 2. supporting legs, 3. universal wheels, 4. supporting frame, 5. driving motor, 6. hanging frame, 7. auxiliary rod, 8. threaded driving rod, 9. sliding block, 10. one-way hydraulic device, 11. pressure rod, 12. through hole, 13. fixing mechanism, 14. limiting block, 15. fixing block, 16. driving block, 17. screw, 18. driving assembly, 19. collecting mechanism, 20. collecting shovel, 21. storage box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] The utility model chain connecting pin disassembly device is as follows Figure 1 and Figure 2 As shown, it includes a workbench 1, and support legs 2 are vertically fixed around the bottom of the workbench 1. Universal wheels 3 are provided at one end of the support legs 2 away from the workbench 1. The device can be pushed to the place where work is required through the universal wheels 3, which is very convenient and quick.

[0032] A pair of support frames 4 are arranged opposite to each other on the workbench 1. The support frames 4 are rectangular frames with an opening at the lower end. The bottom of the support frames 4 is fixedly connected to the workbench 1. The support frames 4 on both sides are connected by a threaded driving rod 8, and a driving motor 5 is arranged on one side of the support frame 4. The driving motor 5 is fixedly connected to the support frame 4 through a hanging frame 6. One end of the hanging frame 6 is fixedly connected to the bottom of the driving motor 5, and the other end is fixedly connected to the support frame 4.

[0033] The output shaft of the driving motor 5 is connected to the threaded driving rod 8; a one-way hydraulic device 10 is movably connected to the threaded driving rod 8, and the driving motor 5 drives the threaded driving rod 8 to rotate, thereby realizing relative sliding linear motion of the driving motor 5 relative to the threaded driving rod 8.

[0034] Furthermore, both ends of the threaded drive rod 8 are movably connected to the corresponding support frame 4 via bearings. The bearings are fixed on the support frame 4, and the threaded drive rod 8 is connected to the inner ring of the bearing to reduce the rotation resistance of the threaded drive rod 8.

[0035] The extension direction of the piston rod in the one-way hydraulic device 10 is toward the workbench 1, and a pressure rod 11 is connected to one end of the piston rod. A plurality of through holes 12 are opened on the workbench 1 at a position relative to the one-way hydraulic device 10. The centers of the plurality of through holes 12 are distributed in a straight line along the linear motion direction of the one-way hydraulic device 10, and the diameters of the plurality of through holes 12 are different, which can adapt to the removal of the connecting pins of chains of different sizes. The plurality of through holes 12 can be arranged in order from small to large along the diameter.

[0036] Fixing mechanisms 13 are respectively provided on both sides of the through hole 12 on the workbench 1, and the chain is fixed by the fixing mechanisms 13 to prevent the chain from being displaced during the disassembly process and the one-way hydraulic device 10 from causing damage to the chain.

[0037] A collecting mechanism 19 is provided at the bottom of the workbench 1 relative to the through hole 12 for collecting the connection pins that fall during disassembly.

[0038] Example 2

[0039] Based on Example 1, a pair of auxiliary rods 7 are further provided between the support frames 4 on both sides of the chain connecting pin disassembly device of the utility model. The pair of auxiliary rods 7 are respectively located on both sides of the threaded driving rod 8, and the two ends of the auxiliary rods 7 are respectively fixedly connected to the corresponding support frames 4.

[0040] The threaded drive rod 8 is provided with a slider 9, the threaded drive rod 8 passes through the slider 9 and is threadedly connected to the slider 9, and the one-way hydraulic device 10 is fixedly connected to the bottom of the slider 9. That is, when the threaded drive rod 8 rotates, the force of the rotation of the threaded drive rod 8 is converted into the linear motion of the slider 9 because the slider 9 and the threaded drive rod 8 are threadedly connected.

[0041] Furthermore, in order to make the slider 9 more stable when performing displacement movement, the pair of auxiliary rods 7 both penetrate the slider 9 and are movably connected to the slider 9 .

[0042] Example 3

[0043] On the basis of Example 2, Figure 4 As shown, the collecting mechanism 19 in the chain connecting pin disassembly device of the utility model includes a collecting shovel 20, which is fixedly connected to the bottom of the workbench 1. The bottom of the collecting shovel 20 is inclined, and the bottom of the collecting shovel 20 is an inverted trapezoid from high to low. The bottom edge of the inclined surface at the bottom of the collecting shovel 20 is connected to a storage box 21, and the cross-section of the storage box 21 is an arc.

[0044] That is, when the connecting pin passes through the through hole 12 and falls into the collecting shovel 20, since the bottom of the collecting shovel 20 is designed to be inclined, the connecting pin will gradually roll toward the storage box 21 along the inclined surface. At the same time, the two sides of the collecting shovel 20 will gradually gather toward the storage box 21, so that the collected connecting pins are more concentrated, and there is no need to use an overly large storage box 21. It is convenient for operators to take the connecting pins when using them.

[0045] And because the connecting pin is generally cylindrical, the connecting pin can be better taken out by setting the bottom of the storage box 21 to be arc-shaped, avoiding the connecting pin from being stuck at the connection of the side wall of the box body.

[0046] Example 4

[0047] On the basis of Example 3, Figure 3 As shown, the fixing mechanism 13 in the chain connecting pin disassembly device of the utility model includes a driving block 16 fixedly connected to the workbench 1, a threaded hole is formed on the driving block 16, a screw 17 is passed through the threaded hole, one end of the screw 17 is connected to a driving assembly 18, and the driving assembly 18 can be a structure that is easily subjected to force, such as a turntable or a turnbar. The other end is movably connected to a fixing block 15, and a circular groove is milled at the position of the fixing block 15 relative to the screw 17, a bearing is fixed in the circular groove, and the end of the screw 17 connected to the fixing block 15 is fixed to the inner ring of the bearing.

[0048] The fixing mechanism 13 also includes a limit block 14 connected to the workbench 1. The fixing block 15 is located between the driving block 16 and the limit block 14. The fixing block 15 is wedge-shaped at one end close to the limit block 14. The position of the limit block 14 depends on the size of the chain. After the chain is fixed by the fixing block 15 and the limit block 14, the chain is in a straight line as a whole, and the axis of the connecting pin is opposite to the center of the through hole 12.

[0049] Furthermore, the limit block 14 is movably connected to the workbench 1, and the position of the limit block 14 is adjusted according to the size of the chain. When the limit block 14 moves to a suitable position, the limit block is fixed. The sliding locking structure is a prior art. For example, a similar sliding locking structure is mentioned in the prior art with publication number CN209611398U.

[0050] The screw 17 is rotated by the driving assembly 18 to drive the fixing block 15 to perform linear motion relative to the workbench 1, so that the wedge-shaped end of the fixing block 15 is inserted into the gap between the sprockets of the chain, and the chain is abutted against the limit block 14, so that the chain is fixed and cannot move.

[0051] When removing the connecting pins of the chain connecting pin removal device of the utility model, the chain is placed on the workbench 1, the chain link connecting pin to be removed is aligned with the through hole 12, the driving components 18 of the fixing mechanisms 13 on both sides are rotated, the wedge-shaped ends of the fixing blocks 15 are inserted between the sprockets, the chain is abutted against the limit blocks 14, and the chain is fixed.

[0052] Start the drive motor 5, move the one-way hydraulic device 10 to the top of the connecting pin to be disassembled, start the one-way hydraulic device 10 to align the pressure rod 11 with the center of the connecting pin, gradually increase the pressure, so that the pressure rod 11 continues to press downward to push the connecting pin out of the chain ring and fall into the storage box 21.

Claims

1. A chain connecting pin removal device, comprising a workbench (1), wherein the bottom of the workbench (1) is vertically fixed with support legs (2) around it, and a universal wheel (3) is arranged at one end of the support leg (2) away from the workbench (1), characterized in that: A pair of support frames (4) are arranged opposite to each other on the workbench (1), the support frames (4) on both sides are connected by a threaded driving rod (8), and a driving motor (5) is arranged on one side of the support frame (4), and the output shaft of the driving motor (5) is connected to the threaded driving rod (8); The threaded drive rod (8) is movably connected to a one-way hydraulic device (10), and the one-way hydraulic device (10) is driven to perform linear motion by the rotation of the threaded drive rod (8). The extension direction of the piston rod in the one-way hydraulic device (10) faces the workbench (1), and one end of the piston rod is connected to a pressure rod (11). A plurality of through holes (12) are provided on the workbench (1) at a position relative to the one-way hydraulic device (10), and a collecting mechanism (19) is provided at a position relative to the through holes (12) at the bottom of the workbench (1).

2. The chain connecting pin removal device according to claim 1, characterized in that: The support frame (4) is a rectangular frame with an open lower end, and the bottom of the support frame (4) is fixedly connected to the workbench (1).

3. The chain connecting pin removal device according to claim 2, characterized in that: The driving motor (5) is fixedly connected to the supporting frame (4) via a suspension frame (6).

4. The chain connecting pin removal device according to claim 1, characterized in that: A pair of auxiliary rods (7) are also provided between the support frames (4) on both sides. The pair of auxiliary rods (7) are respectively located on both sides of the threaded drive rod (8), and both ends of the auxiliary rods (7) are respectively fixedly connected to the corresponding support frames (4).

5. The chain connecting pin removal device according to claim 4, characterized in that: The threaded drive rod (8) is provided with a slider (9), the threaded drive rod (8) passes through the slider (9) and is threadedly connected to the slider (9), and the one-way hydraulic device (10) is fixedly connected to the bottom of the slider (9); The pair of auxiliary rods (7) both penetrate the slider (9) and are movably connected to the slider (9).

6. The chain connecting pin removal device according to claim 1, characterized in that: The centers of the plurality of through holes (12) are distributed in a straight line along the linear movement direction of the one-way hydraulic device (10), and the diameters of the plurality of through holes (12) are all different.

7. The chain connecting pin removal device according to any one of claims 1 to 6, characterized in that: The workbench (1) is provided with fixing mechanisms (13) on both sides of the through hole (12), respectively. The fixing mechanism (13) comprises a driving block (16) fixedly connected to the workbench (1), a threaded hole is formed on the driving block (16), a screw rod (17) is passed through the threaded hole, one end of the screw rod (17) is connected to a driving assembly (18), and the other end is movably connected to the fixing block (15); The fixing mechanism (13) further comprises a limiting block (14) connected to the workbench (1), and the fixing block (15) is located between the driving block (16) and the limiting block (14).

8. The chain connecting pin removal device according to claim 7, characterized in that: The fixing block (15) is wedge-shaped at one end close to the limiting block (14).

9. The chain connecting pin removal device according to any one of claims 1 to 6, characterized in that: The collecting mechanism (19) comprises a collecting shovel (20), the collecting shovel (20) being fixedly connected to the bottom of the workbench (1), the bottom of the collecting shovel (20) being inclined, and the bottom of the collecting shovel (20) being in an inverted trapezoidal shape from high to low, and the bottom edge of the inclined surface of the bottom of the collecting shovel (20) being connected to a storage box (21).

10. The chain connecting pin removal device according to claim 9, characterized in that: The cross section of the storage box (21) is arc-shaped.

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