CN216382475U

CN216382475U - Gear protection device of rotary speed reducer

Info

Publication number: CN216382475U
Application number: CN202122026821.0U
Authority: CN
Inventors: 翟帅修
Original assignee: Zibo Chiming Reduction Machinery Co ltd
Current assignee: Zibo Chiming Reduction Machinery Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-26
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the technical field of speed reducers, in particular to a gear protection device of a rotary speed reducer, which comprises a rotary support and an annular oil duct arranged in the rotary support, wherein an oil filling pipe for connecting the oil duct with external oil supply equipment is arranged on the rotary support, each gear tooth of the rotary support is elastically connected with a hollow oil outlet plate with an opening at one end, one end of the oil outlet plate with the opening is protruded out of the gear tooth, a rolling shaft is arranged at the opening in a rolling manner, the other end of the oil outlet plate extends into the oil duct, limiting columns are symmetrically arranged on two sides of one end of the oil outlet plate, which is positioned in the oil duct, and an elastic element is arranged between the end of the oil outlet plate and the oil duct. According to the utility model, the rolling shaft is arranged at one end of the oil outlet plate protruding out of the gear teeth, so that the sliding friction between the oil outlet plate and the worm or the driving gear is effectively converted into rolling friction, and thus the friction loss of the oil outlet plate is reduced, and the oil outlet plate can continuously and stably discharge oil outwards.

Description

Gear protection device of rotary speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a gear protection device of a rotary speed reducer.

Background

The rotary speed reducer is a universal speed reducing transmission mechanism integrating a driving power source, and uses a rotary support as a transmission driven part and a mechanism attachment part, and a driving part, a driving source and a housing are attached to one ring of an inner ring and an outer ring of the rotary support, while the other ring is used as a transmission driven part and a connection base of a driven working part, so that the driving power source and the main transmission part are efficiently configured by utilizing the characteristic that the rotary support is the full-circle rotary connection part, and the rotary speed reducer becomes a universal speed reducing transmission mechanism integrating the functions of rotation, speed reduction and driving, and has the advantages of simple structure and convenient manufacture and maintenance.

The current patent that publication number is CN210686900U provides a rotary speed reducer gear protection device, through setting up oil outlet and accuse oily mechanism, when slewing bearing rotated, can realize the output of automatic equivalent lubricating oil, no longer need the guard of full-time staff, practiced thrift the resource and the time of production, and can not cause the waste and the not enough problem of use amount of lubricating oil. However, the push rod in the protection device is in sliding contact with the worm or the driving gear, after the rotary gear is used for a long time, the end part of the push rod is abraded greatly, the length of the push rod is shortened, the oil outlet amount of the oil outlet hole is smaller and smaller, and finally the loss of the rotary support is accelerated due to the lack of enough lubricating oil.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a gear protection device of a rotary speed reducer, which can effectively reduce the friction loss between a rolling shaft and a worm or a driving gear and solve the problem that the oil output quantity is gradually reduced along with the increase of the service life of the conventional rotary support.

(II) technical scheme

In order to achieve the purpose of effectively reducing the friction loss between the rolling shaft and the worm or the driving gear, the utility model provides the following technical scheme: a gear protection device of a rotary speed reducer comprises a rotary support and an annular oil duct arranged in the rotary support, wherein an oil filling pipe for connecting the oil duct with external oil supply equipment is arranged on the rotary support, each gear tooth of the rotary support is elastically connected with a hollow oil outlet plate with one end being an opening, one end of the oil outlet plate with the opening is protruded out of the gear tooth, a rolling shaft is arranged at the opening in a rolling manner, the other end of the oil outlet plate extends into the oil duct, limiting columns are symmetrically arranged on two sides of one end of the oil outlet plate, which is positioned in the oil duct, an elastic element is arranged between the end of the oil outlet plate and the oil duct, an oil outlet mechanism is further arranged on the oil outlet plate and comprises a piston fixedly arranged in the oil duct and an oil inlet channel which is arranged on the oil outlet plate and communicated with the inside of the oil outlet plate, one end of the piston is inserted into the oil inlet channel, and the side wall of the oil outlet plate is provided with an oil inlet hole for communicating the oil inlet channel with the oil duct.

Optionally, the elastic element is a spring, and the spring is sleeved on the piston.

Optionally, one end of the piston inserted into the oil inlet channel is provided with a sealing sleeve, and the sealing sleeve is made of rubber.

Optionally, a ring sleeve is arranged in a gap between the oil outlet plate and the gear teeth, and the ring sleeve is a rubber part.

(III) advantageous effects

Compared with the prior art, the utility model provides a gear protection device of a rotary speed reducer, which has the following beneficial effects:

1. according to the utility model, the rolling shaft is arranged at one end of the oil outlet plate protruding out of the gear teeth, the oil outlet plate positioned on the gear teeth is contacted with the worm or the driving gear through the rolling shaft along with the rotation of the slewing bearing, the oil outlet plate discharges oil to the gear teeth under the pushing of the worm or the driving gear, and the sliding friction between the oil outlet plate and the worm or the driving gear is effectively converted into rolling friction through the arrangement of the rolling shaft, so that the friction loss of the oil outlet plate is reduced, and the oil outlet plate can continuously and stably discharge oil outwards;

2. according to the utility model, the elastic element is set as the spring, the spring is sleeved on the piston, and the piston provides support for the compression of the spring, so that the phenomenon of distortion and deformation of the spring in the compression process is avoided, and the service life of the spring is prolonged;

3. according to the oil outlet plate, the rubber sealing sleeve is arranged at one end, inserted into the oil inlet channel, of the piston, and the sealing performance between the piston and the oil inlet channel can be improved through the sealing sleeve, so that the piston can stably pressurize oil in the oil outlet plate, and the oil outlet quantity of the oil outlet plate is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic overall sectional structure of the present invention;

FIG. 3 is a sectional structure diagram of the oil outlet plate of the present invention;

FIG. 4 is a partial schematic view of the present invention;

fig. 5 is a partial cross-sectional structural diagram of the present invention.

In the figure: 1. a slewing bearing; 2. a roller; 3. sleeving a ring; 4. an oil inlet hole; 5. gear teeth; 6. an oil outlet plate; 61. a spring; 62. a piston; 63. an oil inlet channel; 621. sealing sleeves; 7. an oil filling pipe; 8. an oil passage; 9. a limiting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 to 5, an embodiment of the present invention provides a technical solution: a gear protection device of a rotary speed reducer comprises a rotary support 1 and an annular oil duct 8 arranged in the rotary support 1, wherein an oil filling pipe 7 for connecting the oil duct 8 with external oil supply equipment is arranged on the rotary support 1, each gear tooth 5 of the rotary support 1 is elastically connected with a hollow oil outlet plate 6 with one end being an opening, one end of the oil outlet plate 6 with the opening is protruded out of the gear tooth 5, a rolling shaft 2 is arranged at the opening in a rolling manner, the other end of the oil outlet plate 6 extends into the oil duct 8, limiting columns 9 are symmetrically arranged on two sides of one end, positioned in the oil duct 8, of the oil outlet plate 6, an elastic element is arranged between the end of the oil outlet plate 6 and the oil duct 8, an oil outlet mechanism is further arranged on the oil outlet plate 6 and comprises a piston 62 fixedly arranged in the oil duct 8 and an oil inlet channel 63 which is arranged on the oil outlet plate 6 and communicated with the inside of the oil outlet plate 6, one end of the piston 62 is inserted into the oil inlet channel 63, the side wall of the oil outlet plate 6 is provided with an oil inlet hole 4 for communicating the oil inlet channel 63 with the oil duct 8, when the slewing bearing 1 works, along with the rotation of the slewing bearing 1, the oil outlet plate 6 on the gear teeth 5 is in contact with a worm or a driving gear through the rolling shaft 2, when in contact, the oil outlet plate 6 moves towards the inside of the oil duct 8, the elastic element is compressed, the piston 62 pushes towards the inside of the oil outlet plate 6 along the oil inlet channel 63, lubricating oil inside the oil outlet plate 6 is extruded from two sides of the rolling shaft 2, oil is supplied to the contact part of the slewing bearing 1 and the worm or the driving gear, and as the oil outlet plate 6 is in contact with the worm or the driving gear through the rolling shaft 2, the sliding friction between the oil outlet plate and the oil outlet plate can be effectively converted into rolling friction, so that the friction loss of the oil outlet plate 6 is reduced, and the oil outlet plate 6 can continuously and stably discharge outwards.

In order to prolong the service life of the elastic component, based on the above embodiments, the elastic element of the present embodiment is the spring 61, and the spring 61 is sleeved on the piston 62, and the piston 62 provides a support for the compression of the spring 61, so as to avoid the phenomenon of distortion of the spring 61 in the compression process, thereby prolonging the service life thereof.

In order to ensure the normal supply of oil on the gear teeth 5, on the basis of the above embodiment, a sealing sleeve 621 is disposed at one end of the piston 62 inserted into the oil inlet channel 63, and the sealing sleeve 621 is made of rubber, so that the sealing sleeve 621 can increase the sealing performance between the piston 62 and the oil inlet channel 63, so that the piston 62 can stably pressurize the oil inside the oil outlet plate 6, and the oil outlet amount of the oil outlet plate 6 is ensured.

In order to ensure the stable oil discharge of the oil outlet plate 6 and improve the bending resistance of the oil outlet plate 6, on the basis of the above embodiment, the annular sleeve 3 is arranged in the gap between the oil outlet plate 6 and the gear teeth 5 in the embodiment, the annular sleeve 3 is made of rubber, the annular sleeve 3 made of rubber has certain buffering performance, when the oil outlet plate 6 is extruded obliquely by a worm or a driving gear, the annular sleeve 3 can effectively slow down the extrusion force, and meanwhile, the annular sleeve 3 also plays a role in sealing the gap between the gear teeth 5 and the oil outlet plate 6, so that the oil leakage phenomenon at the position is avoided.

The working principle is as follows: when the slewing bearing 1 works, along with the rotation of the slewing bearing 1, the oil outlet plate 6 on the gear teeth 5 is in contact with a worm or a driving gear through the rolling shaft 2, when the oil outlet plate 6 is in contact with the worm or the driving gear, the oil outlet plate 6 moves towards the inside of the oil outlet plate 8 to compress the elastic element, the piston 62 is pushed towards the inside of the oil outlet plate 6 along the oil inlet channel 63 to extrude lubricating oil in the oil outlet plate 6 from two sides of the rolling shaft 2, and oil is supplied to the contact part of the slewing bearing 1 and the worm or the driving gear, because the oil outlet plate 6 is in contact with the worm or the driving gear through the rolling shaft 2, the sliding friction between the oil outlet plate and the worm or the driving gear can be effectively converted into rolling friction, so that the friction loss of the oil outlet plate 6 is reduced, the oil outlet plate 6 can continuously and stably discharge oil outwards, in the oil discharge process, the oil outlet plate 6 is obliquely extruded by the worm or the driving gear, the ring sleeve 3 can effectively slow down the extrusion force, and simultaneously, ring cover 3 still plays the clearance effect between the sealed teeth of a cogwheel 5 and the oil outlet plate 6, avoids this department the oil seepage phenomenon to appear, can improve the anti bending capability of oil outlet plate 6 when guaranteeing oil outlet plate 6's stable oil extraction.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. A gear protection device of a rotary speed reducer is characterized by comprising a rotary support (1) and an annular oil duct (8) arranged in the rotary support (1), wherein an oil filling pipe (7) for connecting the oil duct (8) with external oil supply equipment is arranged on the rotary support (1), each gear tooth (5) of the rotary support (1) is elastically connected with a hollow oil outlet plate (6) with one open end, one open end of the oil outlet plate (6) protrudes out of the gear tooth (5), a rolling shaft (2) is arranged at the opening in a rolling manner, the other end of the oil outlet plate (6) extends into the oil duct (8), limiting columns (9) are symmetrically arranged on two sides of one end, positioned in the oil duct (8), of the oil outlet plate (6), an elastic element is arranged between the end of the oil outlet plate (6) and the oil duct (8), and an oil outlet mechanism is further arranged on the oil outlet plate (6), the oil outlet mechanism comprises a piston (62) fixedly arranged in the oil duct (8) and an oil inlet channel (63) which is arranged on the oil outlet plate (6) and communicated with the inside of the oil outlet plate (6), one end of the piston (62) is inserted into the oil inlet channel (63), and the side wall of the oil outlet plate (6) is provided with the oil inlet channel (63) and the oil duct (8) communicated with an oil inlet hole (4).

2. The rotary reducer gear protection device according to claim 1, characterized in that: the elastic element is a spring (61), and the spring (61) is sleeved on the piston (62).

3. The rotary reducer gear protection device according to claim 1, characterized in that: one end, inserted into the oil inlet channel (63), of the piston (62) is provided with a sealing sleeve (621), and the sealing sleeve (621) is made of rubber.

4. The rotary reducer gear protection device according to claim 1, characterized in that: a ring sleeve (3) is arranged in a gap between the oil outlet plate (6) and the gear teeth (5), and the ring sleeve (3) is a rubber part.