Adjustable torsion coupling for mining conveyor
By designing an adjustable torque control system in the coupling of the mining conveyor, the coordination of the reduction spring and the limit block is used to solve the problem of the motor shaft being easily damaged when the load changes, achieving higher adjustment capabilities and better Long service life.
Patent Information
- Application Number
- CN202421430663.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In harsh environments, the motor shaft is susceptible to radial forces due to changes in load, which is seriously damaged and affects the service life.
An adjustable torque coupling for mining conveyors is designed. By adjusting the strength of the reduction spring, the reduction spring is subject to stress when the motor load is too large, the limit block slides out of the limit slot, interrupts the motor output, and reduces the speed. When the spring is under normal pressure, the limit block snaps into the limit slot and the coupling is operating normally.
It increases the adjustment capability of the coupling, reduces damage to the motor, and improves the safety and service life of the motor.
Smart Images
Figure CN222436882U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of couplings, in particular to an adjustable torque coupling for a mining conveyor. Background Art
[0002] A coupling is a device that connects two shafts or a shaft and a rotating part. The shaft rotates together during the transmission of motion and power and does not disengage under normal circumstances. It is sometimes used as a safety device to prevent the connected parts from being subjected to excessive loads and plays an overload protection role. The adjustable torque coupling for mining motors is a transmission device used in mining machinery. It can connect two shafts and allow the size of the transmitted torque to be adjusted within a certain range. In harsh environments such as mines, due to changes in load during equipment startup and operation, the coupling is required to have a certain adjustment capability to protect the motor and mechanical equipment from excessive torque and prevent equipment damage.
[0003] However, the couplings currently on the market use a single brake disc with a small braking contact area and a large unidirectional braking force, which generates radial force on the motor shaft, easily causing damage to the motor shaft and affecting the service life of the motor. Therefore, those skilled in the art provide an adjustable torque coupling for a mining conveyor to solve the problems raised in the above background technology. Utility Model Content
[0004] The purpose of the utility model is to provide an adjustable torque coupling for a mining conveyor to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An adjustable torque coupling for a mining conveyor comprises a shaft body, a fixed plate, a fixed end and a motor connecting end, the fixed plate is located at the lower side of the shaft body, the fixed end is located at the lower side of the fixed plate, the motor connecting end is located at the inner position of the fixed end, a fixing bolt is installed on the lower side of the fixed plate, an adjusting mechanism is provided on the upper side of the shaft body, a reducer connecting end is provided on the upper side of the adjusting mechanism, a connecting rod is provided at the lower outer end position of the reducer connecting end, a deceleration spring is installed on the outer side of the connecting rod, a sliding column is provided on the lower side of the reducer connecting end, a sliding end is provided at the lower end of the sliding column, a limiting block is provided at the lower outer end position of the sliding end, a cylindrical roller is provided at the lower side of the sliding end adjacent to the limiting block, a limiting end is provided at the lower end of the cylindrical roller, and a limiting groove is provided at the upper outer end position of the limiting end.
[0007] As a further solution of the utility model: the upper end of the connecting rod is fixed to the lower side of the reducer connecting end, and the lower end of the connecting rod slides to the outer end of the sliding end.
[0008] As a further solution of the utility model: the upper end of the sliding column is fixed at a lower position of the reducer connecting end, and the lower end of the sliding column slides at an inner position of the sliding end.
[0009] As a further solution of the present invention: the position of the limiting groove corresponds to that of the limiting block, and the limiting block is engaged at an inner position of the limiting groove.
[0010] As a further solution of the utility model: the lower end of the cylindrical roller rotates to the upper position of the limiting end, and the sliding end rotates to the upper position of the limiting end through the cylindrical roller.
[0011] As a further solution of the utility model: the upper end of the fixing bolt passes through the fixing plate and rotates at the lower end position of the shaft body, and the fixing plate is fixed to the lower side position of the shaft body by the fixing bolt.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has the following beneficial effects: the adjustable torsion coupling for mining conveyors controls the torque by adjusting the strength of the deceleration spring; when the motor load is too large, the deceleration spring contracts under force, the limit block slides out of the limit groove, and the cylindrical roller rotates inside the limit end to make the sliding end and the limit end idle, interrupting the motor output; when the deceleration spring is under normal force, the limit block is stuck in the limit groove, the coupling operates normally, the adjustment capacity of the torsion coupling is increased, the damage to the motor is reduced, the safety of the motor is improved, and the service life of the motor is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of an adjustable torque coupling for a mining conveyor;
[0014] Figure 2 It is a side view of an adjustable torque coupling for a mining conveyor;
[0015] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism in the adjustable torque coupling for mining conveyors.
[0016] In the figure: 1. shaft; 2. fixed plate; 3. fixed end; 4. motor connection end; 5. fixing bolt; 6. adjustment mechanism; 7. reducer connection end; 8. reduction spring; 9. connecting rod; 10. limit end; 11. sliding end; 12. sliding column; 13. limit groove; 14. limit block; 15. cylindrical roller. DETAILED DESCRIPTION
[0017] See also Figures 1 to 3In the embodiment of the utility model, the adjustable torque coupling for a mining conveyor includes a shaft body 1, a fixed plate 2, a fixed end 3 and a motor connection end 4, the fixed plate 2 is located at the lower side of the shaft body 1, the fixed end 3 is located at the lower side of the fixed plate 2, the motor connection end 4 is located at the inner position of the fixed end 3, a fixing bolt 5 is installed on the lower side of the fixed plate 2, an adjustment mechanism 6 is provided on the upper side of the shaft body 1, a reducer connection end 7 is provided on the upper side of the adjustment mechanism 6, a connecting rod 9 is provided at the lower outer end position of the reducer connection end 7, and the outer side of the connecting rod 9 is installed There is a deceleration spring 8, a sliding column 12 is arranged at the lower side of the reducer connection end 7, a sliding end 11 is arranged at the lower end of the sliding column 12, a limiting block 14 is arranged at the lower outer end position of the sliding end 11, a cylindrical roller 15 is arranged at the lower side of the sliding end 11 near the limiting block 14, a limiting end 10 is arranged at the lower end of the cylindrical roller 15, and a limiting groove 13 is arranged at the upper outer end position of the limiting end 10, the upper end of the connecting rod 9 is fixed at the lower side position of the reducer connection end 7, the lower end of the connecting rod 9 slides at the outer end position of the sliding end 11, and the sliding column 12 is provided at the lower outer end position of the sliding end 11. The upper end is fixed at the lower side position of the reducer connecting end 7, the lower end of the sliding column 12 slides at the inner position of the sliding end 11, the position of the limiting groove 13 corresponds to the position of the limiting block 14, the limiting block 14 is engaged with the inner position of the limiting groove 13, the lower end of the cylindrical roller 15 rotates at the upper side position of the limiting end 10, the sliding end 11 rotates at the upper side position of the limiting end 10 through the cylindrical roller 15, the upper end of the fixing bolt 5 passes through the fixing plate 2 and rotates at the lower end position of the shaft body 1, and the fixing plate 2 is fixed to the lower side position of the shaft body 1 through the fixing bolt 5. When the motor load is large, the connecting rod 9 slides inside the sliding end 11, the sliding column 12 slides inside the sliding end 11, the deceleration spring 8 contracts under force, the limit block 14 slides out of the limit groove 13, the cylindrical roller 15 rolls inside the limit end 10, and the limit end 10 and the sliding end 11 idle. When the motor load is normal, the connecting rod 9 slides inside the sliding end 11, the sliding column 12 slides inside the sliding end 11, the deceleration spring 8 stretches, the limit block 14 slides into the limit groove 13, the adjustable torque coupling of the mining motor returns to normal, and the motor drives the reducer to rotate.
[0018] The working principle of the utility model is: first, the reducer connecting end 7 is connected to the reducer, and one end of the motor connecting end 4 is connected to the motor. Then, it starts to be used. When the motor load is large, the connecting rod 9 slides inside the sliding end 11, the sliding column 12 slides inside the sliding end 11, the deceleration spring 8 is forced to shrink, the limit block 14 slides out of the limit groove 13, the cylindrical roller 15 rolls inside the limit end 10, and the limit end 10 and the sliding end 11 idle. When the motor load is normal, the connecting rod 9 slides inside the sliding end 11, the sliding column 12 slides inside the sliding end 11, the deceleration spring 8 stretches, the limit block 14 slides into the limit groove 13, the adjustable torque coupling of the mining motor returns to normal, and the motor drives the reducer to rotate.
[0019] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An adjustable torque coupling for a mining conveyor, comprising a shaft body (1), a fixed plate (2), a fixed end (3) and a motor connection end (4), wherein the fixed plate (2) is located at a lower position of the shaft body (1), the fixed end (3) is located at a lower position of the fixed plate (2), and the motor connection end (4) is located at an inner position of the fixed end (3), characterized in that: A fixing bolt (5) is installed on the lower side of the fixing plate (2); an adjusting mechanism (6) is provided on the upper side of the shaft body (1); a reducer connecting end (7) is provided on the upper side of the adjusting mechanism (6); a connecting rod (9) is provided at the lower outer end of the reducer connecting end (7); a reducing spring (8) is installed on the outer side of the connecting rod (9); a sliding column (12) is provided on the lower side of the reducer connecting end (7); a sliding end (11) is provided at the lower end of the sliding column (12); a limiting block (14) is provided at the lower outer end of the sliding end (11); a cylindrical roller (15) is provided at a position adjacent to the limiting block (14) on the lower side of the sliding end (11); a limiting end (10) is provided at the lower end of the cylindrical roller (15); a limiting groove (13) is provided at the upper outer end of the limiting end (10).
2. The adjustable torque coupling for mining conveyor according to claim 1, characterized in that: The upper end of the connecting rod (9) is fixed at a lower position of the reducer connecting end (7), and the lower end of the connecting rod (9) slides at an outer end position of the sliding end (11).
3. The adjustable torque coupling for mining conveyor according to claim 1, characterized in that: The upper end of the sliding column (12) is fixed at a lower position of the reducer connection end (7), and the lower end of the sliding column (12) slides at an inner position of the sliding end (11).
4. The adjustable torque coupling for mining conveyor according to claim 1, characterized in that: The position of the limiting groove (13) corresponds to that of the limiting block (14), and the limiting block (14) is engaged at an inner position of the limiting groove (13).
5. The adjustable torque coupling for mining conveyor according to claim 1, characterized in that: The lower end of the cylindrical roller (15) rotates to the upper position of the limiting end (10), and the sliding end (11) rotates to the upper position of the limiting end (10) through the cylindrical roller (15).
6. The adjustable torque coupling for mining conveyor according to claim 1, characterized in that: The upper end of the fixing bolt (5) passes through the fixing plate (2) and rotates at the lower end position of the shaft body (1); the fixing plate (2) is fixed to the lower side position of the shaft body (1) by the fixing bolt (5).