CN213298755U

CN213298755U - Novel L-shaped planetary reducer for hoisting mechanism

Info

Publication number: CN213298755U
Application number: CN202021932229.6U
Authority: CN
Inventors: 孙丰强; 赵阳阳; 韩延久; 解家哲
Original assignee: Jinan Taichang Transmission Machinery Co ltd
Current assignee: Jinan Taichang Transmission Machinery Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-05-28
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a new L type planetary reducer for hoisting mechanism belongs to speed reducer technical field. A novel L-shaped planetary reducer for a hoisting mechanism comprises a box body, a first-stage spiral bevel gear pair and a second-stage planetary set, wherein an input bevel gear shaft and a sun gear are fixedly connected to the box body, a flat key is connected to the sun gear, a disc gear is fixedly connected to the sun gear through the flat key, a fixed bearing A and a fixed bearing B are respectively connected to two ends of the sun gear, a box cover is connected to the bottom of the box body, one end of the sun gear is fixedly connected with the box cover through the fixed bearing A, the other end of the sun gear is fixedly connected into the box body through the fixed bearing B, and a second bolt is in threaded connection between the box cover and the box body; the utility model discloses, this speed reducer compact structure accomplishes the velocity ratio by one-level helical bevel gear pair and one-level planet group and changes, has reduced the space promptly, has improved efficiency again.

Description

Novel L-shaped planetary reducer for hoisting mechanism

Technical Field

The utility model relates to a speed reducer technical field especially relates to a new L type planetary reducer for hoisting mechanism.

Background

The hoisting mechanism, also called "hoisting mechanism", is the essential constitution of the hoist, go on the lifting operation to the article, the hoisting mechanism is rotated through the hollow shaft drive reel of the speed reducer by the hoisting motor through the coupling joint, thus make the wire rope/cable wound on reel drive the hook device to rise or descend, and the speed reducer is the core part in the organization, the form of the speed reducer has determined the overall arrangement, appearance, performance of the whole organization, the speed reducer is called reduction box or speed reducer, connect the speed reducer according to the prime mover, the principle that the speed reducer connects the speed reducer again and connects the working machine to carry on the work, it is a kind of power transmission equipment, can be divided into industrial speed reducer and vapour use speed reducer, because the inherent speed reducer form causes the original hoisting mechanism to take up an area of very much in the very compact space on the rear arm of the tower crane, this causes the inconvenience to the daily maintenance, under the condition, a novel L-shaped planetary reducer for the hoisting mechanism is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing speed reducer form is large in the space of the original hoisting mechanism compact on the rear arm of the tower crane, which causes inconvenience for the daily maintenance and the maintenance of the tower crane, and providing a new L-shaped planetary speed reducer for hoisting mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel L-shaped planetary reducer for a hoisting mechanism comprises a box body, a first-stage spiral bevel gear pair and a second-stage planetary set, wherein an input bevel gear shaft and a sun gear are fixedly connected to the box body, a flat key is connected to the sun gear, a disc gear is fixedly connected to the sun gear through the flat key, a fixed bearing A and a fixed bearing B are respectively connected to two ends of the sun gear, a box cover is connected to the bottom of the box body, one end of the sun gear is fixedly connected with the box cover through the fixed bearing A, the other end of the sun gear is fixedly connected in the box body through the fixed bearing B, a second bolt is in threaded connection between the box cover and the box body, the second-stage planetary set comprises a planetary wheel assembly and an inner gear ring, the planetary wheel assembly is in meshed connection with the inner gear ring, the top of the box body is connected with a bearing chamber, and a spacer, the bearing chamber is fixedly connected with an output shaft through a spacer bush and a deep groove ball bearing.

Preferably, the box is internally and respectively connected with a bevel gear adjusting pad, a thrust pad, a round nut and a blocking piece, and the first-stage spiral bevel gear pair is fixed on the box by the bevel gear adjusting pad, the thrust pad and the round nut under the clamping of the two bevel gear shaft fixing bearings through the input bevel gear shaft.

Preferably, the side wall of the box body is respectively connected with an input shaft end cover and a sealing disc, and the input shaft end cover and the sealing disc are respectively in threaded connection with a first bolt and a buckle.

Preferably, the input bevel gear shaft is fixedly connected with an input gear, and the disk gear is meshed with the input gear.

Preferably, the outer wall of the sun gear is sleeved with a shaft sleeve.

Preferably, the input shaft end cover and the bearing chamber are respectively provided with a first framework oil seal and a second framework oil seal.

Preferably, the connection part of the bearing chamber and the box body is in threaded connection with an inner hexagon bolt.

Compared with the prior art, the utility model provides a new L type planetary reducer for hoisting mechanism possesses following beneficial effect:

1. when the novel L-shaped planetary reducer for the hoisting mechanism is used, the input gear on the input bevel gear shaft is driven to rotate through the rotation of the input bevel gear shaft, the disk gear on the sun gear meshed and connected with the input gear shaft is driven to rotate after the input gear rotates, the speed ratio change is completed through the matching of the input gear and the disk gear, meanwhile, the input bevel gear shaft is clamped by two bevel gear shaft fixing bearings, the input bevel gear shaft is fixed on a box body through a bevel gear adjusting pad, a thrust pad and a round nut to prevent the position from shaking and influence the speed ratio conversion, a first framework oil seal in an input shaft end cover can isolate parts needing lubrication in a transmission part from the external environment, the lubricating oil is prevented from leaking, the input bevel gear shaft is lubricated, the normal operation is ensured, and a second-stage planetary set has the structural characteristics of small space, the appearance is circular, can imbed inside hoisting mechanism's the reel, and the output shaft form is involute spline, can directly link with the reel, can not use too much space, makes things convenient for staff to the routine maintenance and the maintenance of tower machine.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses, this speed reducer compact structure accomplishes the velocity ratio by one-level helical bevel gear pair and one-level planet group and changes, has reduced the space promptly, has improved efficiency again.

Drawings

Fig. 1 is a schematic structural diagram of a new L-shaped planetary reducer for a hoisting mechanism according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of a novel L-shaped planetary reducer for a hoisting mechanism according to the present invention.

In the figure: 1. an input bevel gear shaft; 2. a box body; 3. a first framework oil seal; 4. an input shaft end cover; 5. bevel gear adjusting pads; 6. a thrust pad; 7. a first bolt; 8. a bearing for fixing the bevel gear shaft; 9. a round nut; 10. a baffle plate; 11. a disc gear; 12. a box cover; 13. a second bolt; 14. a flat bond; 15. fixing a bearing A; 16. sealing the disc; 17. buckling; 18. fixing a bearing B; 19. a shaft sleeve; 20. a planet wheel assembly; 21. an inner gear ring; 22. an output shaft; 23. a second framework oil seal; 24. a hexagon socket head cap screw; 25. a spacer sleeve; 26. a bearing chamber; 27. a sun gear; 28. provided is a deep groove ball bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a new L-shaped planetary reducer for a hoisting mechanism comprises a box body 2, a first-stage spiral bevel gear pair and a second-stage planetary set, wherein an input bevel gear shaft 1 and a sun gear 27 are fixedly connected to the box body 2, a flat key 14 is connected to the sun gear 27, a disk gear 11 is fixedly connected to the sun gear 27 through the flat key 14, a fixed bearing a15 and a fixed bearing B18 are respectively connected to two ends of the sun gear 27, a box cover 12 is connected to the bottom of the box body 2, one end of the sun gear 27 is fixedly connected to the box cover 12 through a fixed bearing a15, the other end of the sun gear 27 is fixedly connected to the box body 2 through a fixed bearing B18, a second bolt 13 is connected between the box cover 12 and the box body 2 through a thread, the second-stage planetary set comprises a planetary gear assembly 20 and an inner gear ring 21, the planetary gear assembly 20 is meshed with, a spacer 25 and a deep groove ball bearing 28 are connected in a bearing chamber 26, the bearing chamber 26 is fixedly connected with an output shaft 22 through the spacer 25 and the deep groove ball bearing 28, a bevel gear adjusting pad 5, a thrust pad 6, a round nut 9 and a baffle plate 10 are respectively connected in a box body 2, a first-stage spiral bevel gear pair is formed by fixing an input bevel gear shaft 1 on the box body 2 through the bevel gear adjusting pad 5, the thrust pad 6 and the round nut 9 under the clamping of two bevel gear shaft fixing bearings 8, the side wall of the box body 2 is respectively connected with an input shaft end cover 4 and a sealing disc 16, the input shaft end cover 4 and the sealing disc 16 are respectively in threaded connection with a first bolt 7 and a buckle 17, the input bevel gear shaft 1 is fixedly connected with an input gear, the disc gear 11 is in meshed connection with the input gear, the outer wall of a sun gear 27 is sleeved with a shaft sleeve 19, a first skeleton oil seal 3 and a second skeleton oil seal 23 are, a socket head cap 24 is screwed to the joint between the bearing chamber 26 and the housing 2.

The working principle is as follows: in the utility model, when in use, the input gear on the input bevel gear shaft 1 is driven to rotate through the rotation of the input bevel gear shaft 1, after the input gear rotates, the disk gear 11 on the sun gear 27 meshed with the input gear is driven to rotate, the speed ratio change is completed through the matching of the input gear and the disk gear 11, meanwhile, the input bevel gear shaft 1 is clamped by the two bevel gear shaft fixing bearings 8, the input bevel gear shaft 1 is fixed on the box body 2 through the bevel gear adjusting pad 5 and the thrust pad 6 and the round nut 9 to prevent the position from shaking and influence the speed ratio conversion, the first framework oil seal 3 in the input shaft end cover 4 can isolate the parts needing lubrication in the transmission parts from the external environment, so as not to allow the lubricating oil to leak, lubricate the input bevel gear shaft 1 and ensure the normal operation, the second-level planetary set has the structural characteristic of small space, the appearance is circular, can imbed inside hoisting mechanism's the reel, and output shaft 22 form is involute spline, can directly link with the reel, can not use too much space, makes things convenient for staff to the routine maintenance and the maintenance of tower machine.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel L-shaped planetary reducer for a hoisting mechanism comprises a box body (2), a first-stage spiral bevel gear pair and a second-stage planetary set, and is characterized in that an input bevel gear shaft (1) and a sun gear (27) are fixedly connected onto the box body (2), a flat key (14) is connected onto the sun gear (27), a disc gear (11) is fixedly connected onto the sun gear (27) through the flat key (14), a fixed bearing A (15) and a fixed bearing B (18) are respectively connected to two ends of the sun gear (27), a box cover (12) is connected to the bottom of the box body (2), one end of the sun gear (27) is fixedly connected with the box cover (12) through the fixed bearing A (15), the other end of the sun gear (27) is fixedly connected into the box body (2) through the fixed bearing B (18), and a second bolt (13) is in threaded connection between the box cover (12) and the box body (2), the second-stage planetary set comprises a planetary wheel assembly (20) and an inner gear ring (21), the planetary wheel assembly (20) is meshed with the inner gear ring (21) and connected with the inner gear ring, the top of the box body (2) is connected with a bearing chamber (26), a spacer bush (25) and a deep groove ball bearing (28) are connected in the bearing chamber (26), and the bearing chamber (26) is fixedly connected with an output shaft (22) through the spacer bush (25) and the deep groove ball bearing (28).

2. The novel L-shaped planetary reducer for the hoisting mechanism according to claim 1, wherein the box body (2) is internally connected with a bevel gear adjusting pad (5), a thrust pad (6), a round nut (9) and a baffle plate (10), and the first-stage helical bevel gear pair is fixed on the box body (2) by the input bevel gear shaft (1) under the clamping of two bevel gear shaft fixing bearings (8) through the bevel gear adjusting pad (5), the thrust pad (6) and the round nut (9).

3. The novel L-shaped planetary reducer for the hoisting mechanism as claimed in claim 2, wherein the side wall of the box body (2) is respectively connected with an input shaft end cover (4) and a sealing disc (16), and the input shaft end cover (4) and the sealing disc (16) are respectively in threaded connection with a first bolt (7) and a buckle (17).

4. The novel L-shaped planetary reducer for hoisting mechanism as claimed in claim 1, wherein the input bevel gear shaft (1) is fixedly connected with an input gear, and the disk gear (11) is meshed with the input gear.

5. The novel L-shaped planetary reducer for the hoisting mechanism as claimed in claim 1, wherein a shaft sleeve (19) is sleeved on the outer wall of the sun gear (27).

6. The novel L-shaped planetary reducer for the hoisting mechanism as claimed in claim 3, wherein a first framework oil seal (3) and a second framework oil seal (23) are respectively arranged in the input shaft end cover (4) and the bearing chamber (26).

7. The novel L-shaped planetary reducer for hoisting mechanism as claimed in claim 6, wherein the connection part of the bearing chamber (26) and the box body (2) is in threaded connection with a hexagon socket head cap screw (24).