Special speed reducer for hoisting machinery

Abstract

The utility model belongs to the technical field of speed reducers, particularly relates to a special speed reducer for hoisting machinery, and aims to solve the problem that a motor is inconvenient to disassemble and assemble by the conventional speed reducer, so that the motor is inconvenient to maintain by a worker when the motor breaks down, and adopts the following scheme that the special speed reducer comprises a box body, a cover plate is fixedly installed on the top of the box body, the speed reducer further comprises a speed reducing mechanism, the speed reducing mechanism is installed in the box body, and the two ends of the speed reducing mechanism extend to the two sides of the box body respectively. The connecting mechanism is installed at one end of the speed reducing mechanism, and the connecting mechanism is used for being connected with an output shaft of a motor; according to the speed reducer, the motor and the driving shaft can be conveniently mounted and dismounted through the connecting mechanism, so that when the speed reducer needs to be overhauled, the speed reducer can be conveniently dismounted and overhauled, and good use convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a special reducer for lifting machinery. Background Art

[0002] A reducer is an independent component consisting of a gear drive, worm drive, or gear-worm drive enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It matches the speed and transmits torque between the prime mover and the working machine or actuator. It is widely used in modern machinery, and lifting machinery in nuclear power sites usually uses special reducers.

[0003] The existing reducer is not convenient for disassembling and installing the motor, which makes it inconvenient for the staff to repair the motor when the motor fails. Therefore, we propose a special reducer for lifting machinery. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art that the reducer is not convenient for disassembling and installing the motor, resulting in inconvenience for the staff to repair the motor when the motor fails, and proposes a reducer special for lifting machinery.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A speed reducer for hoisting machinery, comprising a box body, a cover plate is fixedly installed on the top of the box body, and the speed reducer also includes:

[0007] The reduction mechanism is installed in the box body, and two ends of the reduction mechanism extend to two sides of the box body respectively;

[0008] A connecting mechanism, the connecting mechanism is installed at one end of the reduction mechanism, and the connecting mechanism is used to connect with the output shaft of the motor;

[0009] The lubricating mechanism penetrates through the cover plate and is connected to the cover plate, and is used for lubricating and protecting the reduction mechanism.

[0010] In a possible design, the reduction mechanism includes a driving shaft and a driven shaft rotatably connected in a housing, the ends of the driving shaft and the driven shaft that are away from each other extend to both sides of the housing respectively, the driving shaft is connected to the connecting mechanism, a driving gear located in the housing is fixedly sleeved on the driving shaft, a driven gear located in the housing is fixedly sleeved on the driven shaft, and the driving gear is meshed with the driven gear.

[0011] In a possible design, the lubrication mechanism includes a lubricating oil tank that penetrates the cover plate and is fixedly connected to the cover plate. An opening is provided on the bottom inner wall of the lubricating oil tank, and the opening is located corresponding to the driving gear. A mesh plate is fixedly installed in the lubricating oil tank.

[0012] In one possible design, the connecting mechanism includes a mounting plate fixedly mounted on one end of the driving shaft, fixing rods are fixedly mounted at equal intervals on one side of the mounting plate, a bayonet is provided on the fixing rods, and the same mounting assembly is connected to multiple fixing rods, and the mounting assembly is used to connect to the output shaft of the motor.

[0013] In a possible design, the mounting assembly includes a retaining ring having a plurality of slots formed at equal intervals on the retaining ring, a fixing rod passing through the corresponding slots and contacting the inner walls of the slots, a shaft sleeve fixedly mounted on one side of the retaining ring, the shaft sleeve being used to connect to the output shaft of the motor, a rotating ring being provided on the shaft sleeve, a plurality of clamping plates being fixedly mounted on the rotating ring at equal intervals, the clamping plates passing through the corresponding bayonet ports and clamped to the inner walls of the bayonet ports.

[0014] In a possible design, the shaft sleeve upper fixing sleeve is provided with a mounting ring, the shaft sleeve upper sleeve is provided with a torsion spring located between the mounting ring and the rotating ring, and the two ends of the torsion spring are respectively fixedly connected to the side of the mounting ring and the rotating ring close to each other.

[0015] In the present application, when the motor is connected to the driving shaft, the sleeve can be pre-installed on the output shaft of the motor, and then the retaining ring can be fitted with the mounting plate, and multiple fixing rods can be passed through corresponding slots. Then the rotating ring can be released, and the torsion spring in a stressed state can drive the rotating ring to rotate, which can drive multiple clamping plates to move, so that the clamping plates pass through corresponding bayonet holes, and the clamping plates and the fixing rods can be clamped and positioned. Then the motor can be started to drive the driving shaft to rotate. At this time, under the meshing transmission action of the driving gear and the driven gear, the driven shaft can be driven The driven gear rotates, and the diameter of the driving gear is smaller than that of the driven gear. Therefore, the speed of the driven shaft is lower than that of the driving shaft, which can achieve the purpose of deceleration. After the lubricating oil is put into the lubricating oil tank, it can flow into the driving gear through the opening, which can lubricate and protect the driving gear and the driven gear. The mesh plate arranged in the lubricating oil tank can slow down the flow rate of the lubricating oil, thereby extending the service life of the lubricating oil. When disassembly is required, the rotating ring can be rotated to move multiple clamps out of the corresponding clamping ports, so that the sleeve and the driving shaft can be disassembled, so that the reducer can be repaired.

[0016] Beneficial effects:

[0017] In the utility model, the speed reducer for hoisting machinery can be connected to the motor through the speed reduction mechanism. At this time, the driving shaft can rotate under the power of the motor. At this time, under the meshing transmission of the driving gear and the driven gear, the driven shaft can be driven to rotate. The diameter of the driving gear is smaller than that of the driven gear. Therefore, the speed of the driven shaft is smaller than that of the driving shaft, which can achieve the purpose of speed reduction.

[0018] In the utility model, the speed reducer for hoisting machinery can connect the mounting assembly to the output shaft of the motor in advance through the connecting mechanism, and then connect the mounting assembly to a plurality of fixing rods, so as to realize the connection between the driving shaft and the output shaft of the motor;

[0019] In the utility model, the speed reducer for hoisting machinery can, through the lubrication mechanism, after the lubricating oil is put into the lubricating oil tank, it can flow into the driving gear through the opening, so as to lubricate and protect the driving gear and the driven gear, and the mesh plate arranged in the lubricating oil tank can slow down the flow rate of the lubricating oil, so as to prolong the service life of the lubricating oil;

[0020] The connection mechanism provided in the utility model can facilitate the installation and disassembly of the motor and the driving shaft, so that when the reducer needs to be repaired, the reducer can be conveniently disassembled and repaired, so the utility model has good convenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a special reducer for lifting machinery proposed by the utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a speed reducer for lifting machinery proposed by the utility model;

[0023] Figure 3 The utility model is a three-dimensional schematic diagram of the internal structure of a lubricating oil tank of a special reducer for lifting machinery.

[0024] In the figure: 1. box body; 2. cover plate; 3. driving shaft; 4. driving gear; 5. driven shaft; 6. driven gear; 7. lubricating oil tank; 8. mesh plate; 9. mounting plate; 10. fixing rod; 11. retaining ring; 12. bushing; 13. mounting ring; 14. rotating ring; 15. retaining plate; 16. torsion spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] Reference Figure 1-3 A speed reducer for lifting machinery comprises a housing 1, a cover plate 2, a speed reducing mechanism, a connecting mechanism and a lubricating mechanism.

[0028] The housing 1 is the main structure of the reducer and has sufficient strength and rigidity to bear the load during operation. The cover plate 2 is fixed on the top of the housing 1 to play a sealing and protective role.

[0029] The reduction mechanism includes a driving shaft 3 and a driven shaft 5 which are rotatably connected in the housing 1. The driving shaft 3 and the driven shaft 5 extend to both sides of the housing 1, respectively, so as to facilitate connection with external equipment. A driving gear 4 is fixedly sleeved on the driving shaft 3, and a driven gear 6 is fixedly sleeved on the driven shaft 5. The driving gear 4 meshes with the driven gear 6 to form a gear transmission structure. When the motor drives the driving shaft 3 to rotate, the driven shaft 5 is driven to rotate through the meshing transmission of the driving gear 4 and the driven gear 6. Since the diameter of the driving gear 4 is smaller than that of the driven gear 6, the rotation speed of the driven shaft 5 is smaller than that of the driving shaft 3, thereby realizing the reduction function.

[0030] The connecting mechanism is used to achieve the connection between the reducer and the output shaft of the motor. Specifically, the connecting mechanism includes a mounting plate 9 fixedly mounted on one end of the driving shaft 3. A plurality of fixed rods 10 are fixedly mounted at equal intervals on one side of the mounting plate 9, and a bayonet is provided on the fixed rod 10. In addition, it also includes a mounting assembly, which includes a retaining ring 11, a sleeve 12, a mounting ring 13, a rotating ring 14, a clamping plate 15 and a torsion spring 16. A plurality of slots are evenly spaced on the retaining ring 11, and the fixed rod 10 can pass through the corresponding slots and contact the inner wall of the slots. The sleeve 12 is fixed on one side of the retaining ring 11 for connecting with the output shaft of the motor. A rotating ring 14 is rotatably sleeved on the sleeve 12, and a plurality of clamping plates 15 are fixedly mounted on the rotating ring 14. The clamping plate 15 can pass through the corresponding bayonet and be clamped with the inner wall of the bayonet. After the fixing rod 10 passes through the corresponding slot, the rotating ring 14 can be rotated to drive the multiple clamping plates 15 to move, so that the clamping plates 15 pass through the corresponding clamping ports to achieve clamping, thereby completing the installation of the shaft sleeve 12 and the mounting plate 9. The installation ring 13 and the torsion spring 16 can ensure the stable clamping of the clamping plates 15 and the clamping ports to avoid loosening without external force.

[0031] The present application can be used in the field of reducer technology, and can also be used in other fields applicable to the present application.

[0032] Example 2

[0033] refer to Figure 3, improved on the basis of the first embodiment: a speed reducer for hoisting machinery, which is applied to the technical field of speed reducers, wherein the lubrication mechanism includes a lubricating oil tank 7 that penetrates the cover plate 2 and is fixedly connected to the cover plate 2. An opening is provided on the bottom inner wall of the lubricating oil tank 7, so that the lubricating oil can flow into and contact the driving gear 4 and the driven gear 6. A mesh plate 8 is also fixedly installed in the lubricating oil tank 7 to slow down the flow rate of the lubricating oil and extend the service life of the lubricating oil. This design can ensure that the gears are fully lubricated, reduce wear and heat, and increase the service life of the speed reducer.

[0034] The above description 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. A speed reducer for hoisting machinery, comprising a housing (1), a cover plate (2) being fixedly mounted on the top of the housing (1), characterized in that: The reducer also includes: A speed reduction mechanism, the speed reduction mechanism is installed in the box body (1), and two ends of the speed reduction mechanism extend to two sides of the box body (1) respectively; A connecting mechanism, the connecting mechanism is installed at one end of the reduction mechanism, and the connecting mechanism is used to connect with the output shaft of the motor; A lubricating mechanism, which penetrates the cover plate (2) and is connected to the cover plate (2), is used to lubricate and protect the speed reduction mechanism.

2. A special reducer for lifting machinery according to claim 1, characterized in that: The speed reduction mechanism comprises a driving shaft (3) and a driven shaft (5) which are rotatably connected in a housing (1); the ends of the driving shaft (3) and the driven shaft (5) which are away from each other respectively extend to two sides of the housing (1); the driving shaft (3) is connected to the connection mechanism; a driving gear (4) located in the housing (1) is fixedly sleeved on the driving shaft (3); a driven gear (6) located in the housing (1) is fixedly sleeved on the driven shaft (5); and the driving gear (4) is meshed with the driven gear (6).

3. A speed reducer for lifting machinery according to claim 1, characterized in that: The lubricating mechanism comprises a lubricating oil tank (7) penetrating the cover plate (2) and fixedly connected to the cover plate (2); an opening is provided on the inner wall of the bottom of the lubricating oil tank (7), the opening is located corresponding to the driving gear (4); and a mesh plate (8) is fixedly installed in the lubricating oil tank (7).

4. A speed reducer for lifting machinery according to claim 1, characterized in that: The connection mechanism comprises a mounting plate (9) fixedly mounted on one end of the driving shaft (3), fixing rods (10) being fixedly mounted at equal intervals on one side of the mounting plate (9), a bayonet being provided on the fixing rods (10), and a plurality of fixing rods (10) being connected to the same mounting assembly, the mounting assembly being used to be connected to the output shaft of the motor.

5. A speed reducer for lifting machinery according to claim 4, characterized in that: The mounting assembly comprises a clamping ring (11), a plurality of slots are formed on the clamping ring (11) at equal intervals, a fixing rod (10) passes through the corresponding slots and contacts the inner wall of the slots, a shaft sleeve (12) is fixedly mounted on one side of the clamping ring (11), the shaft sleeve (12) is used to be connected to the output shaft of the motor, a rotating ring (14) is rotatably mounted on the shaft sleeve (12), a plurality of clamping plates (15) are fixedly mounted on the rotating ring (14) at equal intervals, the clamping plates (15) pass through the corresponding clamping ports and are clamped with the inner wall of the clamping ports.

6. A speed reducer for lifting machinery according to claim 5, characterized in that: The shaft sleeve (12) is provided with a mounting ring (13) on the fixed sleeve, and the shaft sleeve (12) is provided with a torsion spring (16) located between the mounting ring (13) and the rotating ring (14), and the two ends of the torsion spring (16) are respectively fixedly connected to the mounting ring (13) and the rotating ring (14) on one side close to each other.

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