Big belt crane telescopic roller replacement device

Abstract

The utility model discloses big leather belt thousand jin telescopic formula carrier roller replacement device, including the positioning assembly of dismounting type connection on the conveyor support, the fixed component of fixed connection on the positioning assembly, the base of through fixed component and positioning assembly connection, the upright of fixed connection on the base upper end surface, the top board of fixed connection on the upright upper end surface, install small -size jack and the support plate of with small -size jack output end connection on the base upper end surface, the support plate is used for holding the leather belt, and the positioning assembly includes the U -shaped board of dismounting type connection on the conveyor support, the screw rod of screw connection on the lateral wall of U -shaped board, knob no.

Description

Technical Field

[0001] This utility model relates to the field of idler roller technology, specifically a telescopic idler roller replacement device with a large belt jack. Background Technology

[0002] Replacement of idlers is an important part of the maintenance of conveyor systems and plays a key role in ensuring the normal operation of conveyor equipment. As a supporting component of the conveyor belt, idlers will experience wear, deformation, and bearing damage after long-term use, leading to problems such as conveyor belt deviation, increased friction, and increased running resistance. Regularly replacing idlers can restore the normal working condition of the conveyor system, reduce running resistance, reduce energy consumption, and extend the service life of the conveyor belt.

[0003] In the existing technology, replacing idlers is a routine maintenance item for conveyor belts. In particular, replacing idlers for large belts usually requires 2-3 people to work together. First, a pry bar is used to pry up the belt so that there is a distance between the belt and the idler that is greater than the height of the idler shaft or belt frame groove. When working manually, it is not easy to pry up to this height, which is time-consuming and laborious. Sometimes the pry bar cannot find a corresponding support point on the idler frame, and the replacement is forced by lifting and carrying by people, which can easily cause the pry bar to slip and cause injury. Utility Model Content

[0004] The purpose of this utility model is to provide a telescopic idler replacement device for a large belt conveyor, in order to solve the problems mentioned in the background art, such as the difficulty of manually prying the belt with a crowbar to a height greater than the idler shaft or belt frame groove, which is time-consuming and laborious, and the crowbar often cannot find a fulcrum, and the crowbar is prone to slipping and injuring people when being lifted and carried by hand.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a telescopic idler replacement device for a large belt conveyor jack, comprising a positioning component detachably connected to a conveyor support, a fixing component fixed to the positioning component, a base connected to the positioning component via the fixing component, a column fixed to the upper end face of the base, a top plate fixed to the upper end face of the column, a small jack installed on the upper end face of the base, and a support plate connected to the output end of the small jack. The support plate is used to support the belt. The positioning component includes a U-shaped plate detachably connected to the conveyor support, a screw threaded to the side wall of the U-shaped plate, a knob fixed to one end of the screw, a support plate rotatably connected to the other end of the screw, and a pressure block disposed on the surface of the support plate.

[0006] According to the preferred embodiment of this technical solution, the fixing component includes a support frame fixed to the upper end of the U-shaped plate, a bearing seat fixed to the inner wall of one side of the support frame, a rotating shaft rotatably connected to the bearing seat and extending to the outside of the support frame, a connecting seat fixed to the outer wall of the rotating shaft, a transmission rod detachably connected to the connecting seat, and a pressure block fixed to the lower end of the transmission rod. The support frame is also provided with a locking mechanism, and the rotating shaft is locked by the locking mechanism.

[0007] According to the preferred embodiment of this technical solution, the locking mechanism includes a gantry fixed to the upper end of the support frame, a bearing seat II fixed to the upper end of the support frame, a worm gear rotatably connected in the bearing seat II and passing through the gantry, and a worm wheel fixed to the outer wall of the rotating shaft. The worm gear and the worm wheel are meshed and connected, and a knob II is fixedly connected to one end of the worm gear.

[0008] According to the preferred embodiment of this technical solution, the fixing component includes a groove formed on the U-shaped plate, a bearing seat three fixed to the inner wall of one side of the groove, a double-acting screw rotatably connected in the bearing seat three, a knob three fixed to one end of the double-acting screw three, a movable seat threadedly connected to the threaded section of the double-acting screw three, and a clamping plate fixed to the upper end of the movable seat.

[0009] In the preferred embodiment of this technical solution, a guide slide rod is fixedly connected inside the groove, and the outer wall of the guide slide rod is slidably connected to the movable seat.

[0010] In the preferred embodiment of this technical solution, a groove is provided on the upper end face of the connecting seat, and a track adapted to the groove is fixedly connected to the lower end face of the transmission rod, with the track and the groove being slidably connected.

[0011] In the preferred embodiment of this technical solution, a magnet is embedded in the contact surface between the track and the slide, and the track and the slide are magnetically connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The positioning components are quickly installed and disassembled through U-shaped plate snap-fit ​​and screw pressing, without the need for welding or drilling, thus avoiding damage to the conveyor support structure. At the same time, the pressure block design enhances friction and prevents loosening during operation. 2. The fixing components adopt a worm gear self-locking mechanism or a two-way screw clamping mechanism. The former can output high torque and lock the position by fine adjustment of the knob, while the latter can achieve bidirectional synchronous clamping by rotating a single screw. Both can be adapted to bases of different sizes, and the self-locking property ensures stability. 3. Small jacks are easy to operate, carry, save time and effort, and are easy to manufacture, which reduces the labor intensity of maintenance personnel, reduces on-site operation risks and hazards, and improves work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of the telescopic idler roller replacement device for a large belt conveyor of the present invention. Figure 2 This is a schematic diagram of the positioning component of this utility model; Figure 3 This is a first structural schematic diagram of the fixing component of this utility model; Figure 4 This is a schematic diagram of the track and groove structure of this utility model; Figure 5This is a schematic diagram of the second structure of the fixing component of this utility model.

[0014] In the diagram: 1. Conveyor support; 2. Base; 3. Column; 4. Top plate; 5. Small jack; 6. Support plate; 7. U-shaped plate; 8. Screw; 9. Knob 1; 10. Support plate; 11. Pressure block; 12. Support frame; 13. Bearing seat 1; 14. Rotating shaft; 15. Connecting seat; 16. Transmission rod; 17. Pressing block; 18. Gantry; 19. Bearing seat 2; 20. Worm gear; 21. Worm wheel; 22. Groove; 23. Bearing seat 3; 24. Double-acting screw; 25. Moving seat; 26. Clamping plate; 27. Guide slide rod; 28. Track; 29. ​​Slide groove; 30. Knob 2; 31. Knob 3. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5This utility model provides a telescopic idler replacement device for a large belt conveyor jack, including a positioning component detachably connected to a conveyor support 1, a fixing component fixed to the positioning component, a base 2 connected to the positioning component via the fixing component, a column 3 fixed to the upper end face of the base 2, a top plate 4 fixed to the upper end face of the column 3, a small jack 5 installed on the upper end face of the base 2, and a support plate 6 connected to the output end of the small jack 5. The support plate 6 is used to support the belt. The positioning component includes a U-shaped plate 7 detachably connected to the conveyor support 1, a screw 8 threadedly connected to the side wall of the U-shaped plate 7, a knob 9 fixed to one end of the screw 8, a support plate 10 rotatably connected to the other end of the screw 8, and a pressure block 11 disposed on the surface of the support plate 10. The U-shaped plate 7 is detachably connected to the conveyor support 1 and serves as the basic mounting carrier for the positioning component. The knob 9 is fixed to the screw 8. One end of rod 8 provides a rotary operation interface. The abutment plate 10 contacts the surface of the conveyor support 1. The pressure block 11 increases the pressure between the plate and the support. The U-shaped plate 7 is inserted into the conveyor support 1. Rotating knob 9 pushes the screw 8 forward. The abutment plate 10 presses tightly against the support surface through the pressure block 11, using friction to fix the position of the U-shaped plate 7. The threaded engagement between the screw 8 and the U-shaped plate 7 has self-locking properties to prevent vibration from causing the positioning component to loosen. The fixing component enables a detachable connection between the base 2 and the positioning component. The jack converts the rotational motion into linear lifting force through hydraulic or mechanical transmission, pushing the pallet 6 upward. The pallet 6 adopts an arc or flat design to adapt to different belt specifications. The jack has a built-in safety valve that automatically releases pressure when the lifting force exceeds the set value to prevent equipment damage. After reaching the set height, the jack self-locks to maintain the belt position, providing operating space for replacing the idler roller.

[0017] Example 1: Please refer to Figure 3 A further embodiment of this solution is as follows: the fixing component includes a support frame 12 fixed to the upper end of the U-shaped plate 7, a bearing seat 13 fixed to the inner wall of one side of the support frame 12, a rotating shaft 14 rotatably connected to the bearing seat 13 and extending to the outside of the support frame 12, a connecting seat 15 fixed to the outer wall of the rotating shaft 14, a transmission rod 16 detachably connected to the connecting seat 15, and a clamping block 17 fixed to the lower end of the transmission rod 16. The support frame 12 is also provided with a locking mechanism, and the rotating shaft 14 is locked by the locking mechanism. Locked, the rotating shaft 14 rotates, driving the connecting seat 15 to rotate. The transmission rod 16 converts the rotational motion into the vertical pressure of the clamping block 17. The transmission rod 16 is detachably connected to the connecting seat 15, making it easy to replace clamping blocks 17 of different specifications to adapt to different bases 2. The angle of the clamping block 17 is adjusted by rotating the rotating shaft 14 to ensure complete contact with the surface of the base 2. During operation, the transmission rod 16 is inserted into the connecting seat 15, the clamping block 17 is aligned with the surface of the base 2, and the rotating shaft 14 is rotated, causing the clamping block 17 to press down and fix the base 2.

[0018] Please see Figure 3A further solution based on this embodiment is as follows: The locking mechanism includes a gantry 18 fixedly connected to the upper end of the support frame 12, a bearing seat 29 fixedly connected to the upper end of the support frame 12, a worm 20 rotatably connected within the bearing seat 29 and passing through the gantry 18, and a worm wheel 21 fixedly connected to the outer wall of the rotating shaft 14. The worm 20 and the worm wheel 21 are meshed together. A knob 20 is fixedly connected to one end of the worm 20. The meshing ratio between the worm 20 and the worm wheel 21 is large, and a slight rotation of the knob 20 can drive the rotating shaft 14 to rotate significantly. When the worm gear 21 rotates, the output torque is increased, and the worm wheel 21 cannot drive the worm 20 to rotate in the reverse direction. This ensures that the shaft 14 is locked and its position is stable, preventing vibration from causing the pressure block 17 to loosen. During operation, rotating knob 20 drives the worm wheel 21 to rotate, which in turn drives the shaft 14 to the target angle. After the rotation stops, the worm wheel 21 cannot retract due to its self-locking property, and the position of the shaft 14 is fixed. The pressure block 17 maintains pressure. Reverse rotation of knob 20 drives the worm wheel 21 to rotate in the reverse direction, releasing the shaft 14.

[0019] Example 2: Please refer to Figure 5 A further solution based on this embodiment is as follows: The fixing component includes a groove 22 formed on the U-shaped plate 7, a bearing seat 23 fixed to the inner wall of one side of the groove 22, a bidirectional lead screw 24 rotatably connected in the bearing seat 23, a knob 31 fixed to one end of the bidirectional lead screw 24, a movable seat 25 threadedly connected to the threaded section of the bidirectional lead screw 24, and a clamping plate 26 fixed to the upper end of the movable seat 25. Rotating the knob 31 causes the bidirectional lead screw 24 to rotate, and the two movable seats 25 move in opposite directions along the lead screw, so as to realize the synchronous approach or separation of the clamping plate 26. By controlling the number of rotations of the knob 31, the spacing of the clamping plate 26 can be precisely adjusted to adapt to different sizes of base 2. The threaded engagement between the bidirectional lead screw 24 and the movable seat 25 has self-locking properties, and no additional locking is required after clamping.

[0020] Please see Figure 5 A further solution based on this embodiment is as follows: a guide slide rod 27 is fixedly connected in the groove 22, and the outer wall of the guide slide rod 27 is slidably connected to the movable seat 25. The guide slide rod 27 restricts the movable seat 25 to move only along the screw axis to prevent rotation or deflection. During operation, when the bidirectional screw 24 drives the movable seat 25, the sliding hole slides along the guide slide rod 27 to ensure that the movement trajectory is a straight line.

[0021] Please see Figure 4 A further solution based on this embodiment is as follows: a groove 29 is provided on the upper end face of the connecting seat 15, and a track 28 adapted to the groove 29 is fixedly connected to the lower end face of the transmission rod 16. The track 28 and the groove 29 are slidably connected. Through the cooperation of the track 28 and the groove 29, the transmission rod 16 and the connecting seat 15 can be quickly connected, thereby facilitating the replacement of transmission rods 16 of different sizes.

[0022] Please see Figure 4A further solution based on this embodiment is as follows: a magnet is embedded in the contact surface of the track 28 and the slide 29, the track 28 and the slide 29 are magnetically connected, and after the track 28 is inserted into the slide 29, the magnet is automatically attracted and fixed, realizing the quick connection between the transmission rod 16 and the connecting seat 15. The track 28 can be slid by overcoming the magnetic force, which is convenient for replacing transmission rods 16 of different sizes.

[0023] Working principle: First, install the positioning component. The U-shaped plate 7 is detachably connected to the conveyor bracket 1 as the basic installation carrier. Rotate the knob 9 to push the screw 8 threaded to the side wall of the U-shaped plate 7. Rotate the abutment plate 10 connected to the other end of the screw 8 to press the surface of the conveyor bracket 1 tightly through the pressure block 11 on the surface. Use friction to fix the position of the U-shaped plate 7. The threaded engagement between the screw 8 and the U-shaped plate 7 has self-locking properties, which can prevent the positioning component from loosening due to vibration. After the positioning component is installed, the fixing component is operated according to different embodiments to achieve a detachable connection between the base 2 and the positioning component; Example 1: Insert the transmission rod 16 into the connecting seat 15 fixed to the outer wall of the rotating shaft 14. At this time, the groove 29 on the upper end face of the connecting seat 15 is slidably connected to the track 28 fixed to the lower end face of the transmission rod 16, and the magnet embedded in the contact surface of the track 28 and the groove 29 is automatically attracted and fixed, realizing quick connection and facilitating the subsequent replacement of transmission rods 16 of different sizes. Align the pressure block 17 with the surface of the base 2, and rotate the knob 30 fixed to one end of the rotating shaft 14. The knob 30 drives the worm gear 20, which is connected to the upper bearing seat 19 of the support frame 12 and passes through the upper frame 18 of the support frame 12, to rotate and mesh with the worm gear 20. The worm gear 21, which is fixed to the outer wall of the rotating shaft 14, rotates accordingly, thereby driving the rotating shaft 14 to rotate. Since the meshing ratio between the worm 20 and the worm gear 21 is large, a slight rotation of the knob 2 30 can drive the rotating shaft 14 to rotate significantly, thereby increasing the output torque. The rotation of the rotating shaft 14 drives the connecting seat 15 to rotate, so that the transmission rod 16 converts the rotational motion into the vertical pressure of the pressure block 17, which presses down on the fixed base 2. After the knob 2 30 is stopped from rotating, the worm gear 21 cannot retract due to its self-locking property, the position of the rotating shaft 14 is fixed, and the pressure block 17 maintains the pressure. If the rotating shaft 14 is to be released, the knob 2 30 is rotated in the opposite direction, and the worm 20 drives the worm gear 21 to reverse. Example 2: Rotate the knob 31 fixed to one end of the bidirectional lead screw 24 to make the bidirectional lead screw 24 rotate. The two movable seats 25 threadedly connected to the threaded section of the bidirectional lead screw 24 move in the opposite direction along the lead screw, causing the clamping plate 26 fixed to the upper end of the movable seat 25 to move closer or separate synchronously. By controlling the number of rotations of the knob 31, the spacing of the clamping plate 26 can be precisely adjusted to adapt to different sizes of base 2. The threaded engagement between the bidirectional lead screw 24 and the movable seat 25 has self-locking properties, and no additional locking is required after clamping. When the bidirectional lead screw 24 drives the movable seat 25, the guide slide rod 27, which is slidably connected to the movable seat 25 and fixed in the groove 22, restricts the movable seat 25 to move only along the axial direction of the lead screw, preventing rotation or deflection and ensuring that the movement trajectory is a straight line. After the base 2 is fixed, start the small jack 5 installed on the upper surface of the base 2. The small jack 5 converts the rotational motion into linear lifting force through hydraulic or mechanical transmission, pushing the pallet 6 connected to the output end of the small jack 5 to rise. The pallet 6 adopts an arc or flat design to adapt to different belt specifications. The small jack 5 has a built-in safety valve, which automatically releases pressure when the lifting force exceeds the set value to prevent equipment damage. After reaching the set height, the small jack 5 self-locks to maintain the belt position, providing operating space for the replacement of the idler roller. At this time, the replacement of the idler roller can be carried out.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic idler roller replacement device for a large belt conveyor, characterized in that: The system includes a positioning component detachably connected to the conveyor support (1), a fixing component fixed to the positioning component, a base (2) connected to the positioning component via the fixing component, a column (3) fixed to the upper end face of the base (2), a top plate (4) fixed to the upper end face of the column (3), a small jack (5) installed on the upper end face of the base (2), and a support plate (6) connected to the output end of the small jack (5). The support plate (6) is used to support the belt. The positioning component includes a U-shaped plate (7) detachably connected to the conveyor support (1), a screw (8) threaded to the side wall of the U-shaped plate (7), a knob (9) fixed to one end of the screw (8), a support plate (10) rotatably connected to the other end of the screw (8), and a pressure block (11) set on the surface of the support plate (10).

2. The telescopic idler roller replacement device for a large belt conveyor as described in claim 1, characterized in that: The fixing components include a support frame (12) fixed to the upper end of the U-shaped plate (7), a bearing seat (13) fixed to the inner wall of one side of the support frame (12), a rotating shaft (14) rotatably connected to the bearing seat (13) and extending to the outside of the support frame (12), a connecting seat (15) fixed to the outer wall of the rotating shaft (14), a transmission rod (16) detachably connected to the connecting seat (15), and a pressure block (17) fixed to the lower end of the transmission rod (16). The support frame (12) is also provided with a locking mechanism, and the rotating shaft (14) is locked by the locking mechanism.

3. The telescopic idler roller replacement device for a large belt conveyor according to claim 2, characterized in that: The locking mechanism includes a gantry (18) fixed to the upper end of the support frame (12), a bearing seat (19) fixed to the upper end of the support frame (12), a worm (20) rotatably connected in the bearing seat (19) and passing through the gantry (18), and a worm wheel (21) fixed to the outer wall of the rotating shaft (14). The worm (20) and the worm wheel (21) are meshed and connected. A knob (30) is fixed to one end of the worm (20).

4. The telescopic idler roller replacement device for a large belt conveyor as described in claim 1, characterized in that: The fixing components include a groove (22) opened on the U-shaped plate (7), a bearing seat three (23) fixed to the inner wall of one side of the groove (22), a double-acting screw (24) rotatably connected in the bearing seat three (23), a knob three (31) fixed to one end of the double-acting screw (24), a movable seat (25) threadedly connected to the threaded section of the double-acting screw (24), and a clamping plate (26) fixed to the upper end of the movable seat (25).

5. The telescopic idler roller replacement device for a large belt conveyor according to claim 4, characterized in that: A guide slide rod (27) is fixedly connected inside the groove (22), and the outer wall of the guide slide rod (27) is slidably connected to the movable seat (25).

6. The telescopic idler roller replacement device for a large belt conveyor according to claim 2, characterized in that: The upper end face of the connecting seat (15) is provided with a sliding groove (29), and the lower end face of the transmission rod (16) is fixedly connected with a track (28) that is compatible with the sliding groove (29). The track (28) and the sliding groove (29) are slidably connected.

7. The telescopic idler roller replacement device for a large belt conveyor according to claim 6, characterized in that: A magnet is embedded in the contact surface of the track (28) and the slide (29), and the track (28) and the slide (29) are magnetically connected.

Images