CN216158150U

CN216158150U - Transmission shaft structure and steering transmission shaft

Info

Publication number: CN216158150U
Application number: CN202122135529.2U
Authority: CN
Inventors: 韩金华
Original assignee: Jingjiang Hengli Chassis Parts Manufacturing Co ltd
Current assignee: Jingjiang Hengli Chassis Parts Manufacturing Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-01
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a transmission shaft structure and a steering transmission shaft in the technical field of transmission shafts, and the transmission shaft structure and the steering transmission shaft comprise a shaft sleeve, wherein a flange plate is fixedly installed at the tail part of the shaft sleeve, the tail part of the shaft sleeve is connected with a shaft barrel through the flange plate, an installation embedding hole is fixedly formed in the inner wall of the shaft sleeve, a positioning sealing plate is fixedly installed at the position of the inner wall of the installation embedding hole and the position of the adjacent flange plate, a sleeve is clamped on the inner wall of the installation embedding hole, an oil supply pipe communicated with the sleeve is fixedly installed on the peripheral side surface of the shaft sleeve, a clamping hole is fixedly formed in the inner wall of the sleeve, a group of key blocks distributed in a circumferential array are fixedly installed on the inner wall of the clamping hole, a shaft core is slidably connected on the inner wall of the clamping hole through the group of key blocks, and a seal head matched with the shaft core is in threaded connection on the peripheral side surface of the shaft sleeve. The transmission shaft device can efficiently complete the transmission work of an automobile through the design of the shaft center, the shaft sleeve and the shaft barrel, and the transmission shaft is convenient to assemble and disassemble quickly through the structural design of the transmission shaft device.

Description

Transmission shaft structure and steering transmission shaft

Technical Field

The utility model relates to the technical field of transmission shafts, in particular to a transmission shaft structure and a steering transmission shaft.

Background

The existing tooth-driven transmission shaft is mainly used for automobiles, and because the transmission shaft of an automobile needs to be matched with a shaft sleeve for use, the transmission shaft moves in the shaft sleeve for many times, the friction force between the transmission shaft and the shaft sleeve is large, so that the service life of the transmission shaft is shortened, when the automobile drives to vibrate greatly, the movable shaft is quickly inserted into the shaft sleeve, the right end of the movable shaft easily collides with the left end of the shaft sleeve during moving, and further the damage between the movable shaft and the shaft sleeve is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a transmission shaft structure and a steering transmission shaft, and aims to solve the problems of large abrasion and lack of a protective structure of the existing transmission shaft in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a transmission shaft structure comprises a shaft sleeve, wherein a flange plate is fixedly mounted at the tail part of the shaft sleeve, the tail part of the shaft sleeve is connected with a shaft barrel through the flange plate, an installation embedding hole is fixedly formed in the inner wall of the shaft sleeve, a positioning sealing plate is fixedly mounted on the inner wall of the installation embedding hole and adjacent to the flange plate, a sleeve is clamped on the inner wall of the installation embedding hole, an oil feeding pipe communicated with the sleeve is fixedly mounted on the peripheral side of the shaft sleeve, a clamping hole is fixedly formed in the inner wall of the sleeve, a group of key blocks distributed in a circumferential array are fixedly mounted on the inner wall of the clamping hole, a shaft core is slidably connected onto the inner wall of the clamping hole through a group of key blocks, a seal head matched with the shaft core is in threaded connection with the peripheral side of the shaft sleeve, guide plates are fixedly mounted on the peripheral side of the shaft core and correspond to the positions of the group of key blocks, and a group of universal rollers distributed in a linear array are embedded in the guide plates, the peripheral side surface of each group of universal rollers and the peripheral side surface of each guide plate are in sliding connection with the key blocks at corresponding positions, the tail part of the shaft core is fixedly provided with a guide sleeve, the peripheral side surface of the guide sleeve is in sliding fit with the positioning seal plate, the tail part of the guide sleeve is in threaded connection with a sealing disc, the peripheral side surface of the sealing disc is in sliding fit with the shaft barrel, a first air cavity and a second air cavity which are mutually isolated are arranged in the shaft cylinder in a separated way by using the sealing disc, the peripheral side surface of the guide sleeve and the positions corresponding to the first air cavity and the second air cavity are both sleeved with buffer springs, two symmetrically arranged air injection pieces are arranged on the peripheral side surface of the shaft cylinder, one ends of the two air injection pieces are respectively communicated with the first air cavity and the second air cavity, an inner shaft is fixedly arranged at the axis position in the shaft sleeve, and the peripheral side surface of the inner shaft is in sliding connection with the guide sleeve.

Preferably, a set of sealing ring grooves that are linear array and distribute are seted up on the ring flange surface, the equal fixed mounting in position of shaft barrel surface and corresponding a set of sealing ring groove has sealed bulge loop, every the week side of sealed bulge loop all is connected with the sealing ring groove that corresponds the position.

Preferably, the one end fixed mounting of axle core has the loose axle, the equal fixed mounting of afterbody and the tip of loose axle of an axle section of thick bamboo has the universal joint, the inner wall fixed mounting of head have with axle core complex sealing washer a, the inner wall fixed mounting of location shrouding have with guide sleeve complex sealing washer b, the all side fixed mounting of sealed dish have with an axle section of thick bamboo complex sealing washer c.

Preferably, the gas injection spare includes the forcing pipe, the one end and the fixed intercommunication of beam barrel of forcing pipe, the week side of forcing pipe is fixed mounting respectively has pressure gauge and pneumatic valve, the week side fixed mounting of oil feed pipe has the oil valve.

Preferably, the mounting embedding hole and the clamping hole are regular polygon holes, the inner shaft is of a regular polygon structure, a sliding hole matched with the shape of the inner shaft is fixedly formed in the inner wall of the guide sleeve, the shape of the sleeve is matched with that of the mounting embedding hole, the shape of the shaft core is matched with that of the clamping hole, the number of the key blocks is the same as that of regular polygon edges of the clamping hole, and a U-shaped groove matched with the guide plate is formed in each key block.

A steering transmission shaft is provided with the transmission shaft structure.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, through the design of the axle center, the axle sleeve and the axle cylinder, the device can efficiently complete the transmission work of an automobile, and through the structural design of the device, the quick assembly and disassembly of the transmission shaft are facilitated, through the realization of the quick assembly function, the easy maintenance of the device is effectively improved, through the design of the sealing disc and the double air cavities, on one hand, the total length of the transmission shaft can be effectively controlled, on the other hand, the axial vibration quantity in the working process of the transmission shaft can be effectively diluted and buffered, so that the use effect of the transmission shaft is improved, through the structural arrangement of the universal ball and the axle core, on the one hand, the friction force between the axle sleeve and the axle core can be effectively reduced, and on the other hand, the phenomena of deviation and eccentricity of the axle core and the axle sleeve during working can be effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view of the feed oil pipe, the shaft sleeve, the sleeve and the inner shaft;

FIG. 3 is a schematic view of a portion of the enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of the construction of the sleeve, flange and sealing disk;

FIG. 5 is a schematic structural view of a shaft core, a guide plate and a ball gimbal;

FIG. 6 is a schematic view of the structure of the sleeve and the snap hole;

fig. 7 is a schematic structural view of the installation caulking hole and the feed oil pipe.

In the drawings, the components represented by the respective reference numerals are listed below:

1-shaft sleeve, 2-flange plate, 3-shaft barrel, 4-mounting embedding hole, 5-positioning sealing plate, 6-sleeve, 7-oil supply pipe, 8-clamping hole, 9-shaft core, 10-end socket, 11-guide plate, 12-universal ball, 13-guide sleeve, 14-sealing disc, 15-first air cavity, 16-second air cavity, 17-buffer spring, 18-air injection piece, 19-inner shaft, 20-movable shaft, 21-universal joint and 22-key block.

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.

Referring to fig. 1-7, the present invention provides a technical solution: a transmission shaft structure comprises a shaft sleeve 1, wherein a flange plate 2 is fixedly installed at the tail part of the shaft sleeve 1, a flange connecting hole used for being connected with a shaft barrel 3 is formed in the flange plate 2, the tail part of the shaft sleeve 1 is connected with the shaft barrel 3 through the flange plate 2, and the shaft barrel 3 is of a hollow cylindrical structure with a closed tail end and an open front end;

the surface of the flange plate 2 is provided with a group of sealing ring grooves distributed in a linear array, the surface of the shaft barrel 3 is fixedly provided with sealing convex rings at positions corresponding to the group of sealing ring grooves, the peripheral side surface of each sealing convex ring is connected with the corresponding sealing ring groove, the peripheral side surface of each sealing convex ring is wrapped with a sealing rubber lining, and the sealing performance of the joint of the flange plate 2 and the shaft barrel 3 is effectively ensured through the connection state arrangement of the sealing ring grooves and the sealing convex rings;

an installation embedding hole 4 is fixedly formed in the inner wall of the shaft sleeve 1, a positioning sealing plate 5 is fixedly installed on the inner wall of the installation embedding hole 4 and the position of the adjacent flange plate 2, a sleeve 6 is clamped on the inner wall of the installation embedding hole 4, the shape of the sleeve 6 is matched with that of the installation embedding hole 4, an oil supply pipe 7 communicated with the sleeve 6 is fixedly installed on the peripheral side face of the shaft sleeve 1, an oil valve is fixedly installed on the peripheral side face of the oil supply pipe 7, and lubricating grease is filled into the sleeve 6 under the action of the oil supply pipe 7;

the inner wall of the sleeve 6 is fixedly provided with a clamping hole 8, the mounting embedding hole 4 and the clamping hole 8 are regular polygon holes, the inner wall of the clamping hole 8 is fixedly provided with a group of key blocks 22 distributed in a circumferential array manner, the inner wall of the clamping hole 8 is connected with a shaft core 9 in a sliding manner through the group of key blocks 22, the shape of the shaft core 9 is matched with that of the clamping hole 8, one end of the shaft core 9 is fixedly provided with a movable shaft 20, and the tail part of the shaft barrel 3 and the end part of the movable shaft 20 are both fixedly provided with universal joints 21;

the number of the key blocks 22 is the same as that of the regular polygon edges of the clamping holes 8, and a U-shaped groove matched with the guide plate 11 is formed in each key block 22;

the peripheral side surface of the shaft sleeve 1 is in threaded connection with a seal head 10 matched with a shaft core 9, a seal ring a matched with the shaft core 9 is fixedly installed on the inner wall of the seal head 10, guide plates 11 are fixedly installed on the peripheral side surface of the shaft core 9 and correspond to the positions of a group of key blocks 22, a group of universal rollers 12 distributed in a linear array mode are embedded in each guide plate 11, and the peripheral side surface of each group of universal rollers 12 and the peripheral side surface of each guide plate 11 are in sliding connection with the key blocks 22 at the corresponding positions;

a guide sleeve 13 is fixedly installed at the tail part of the shaft core 9, the peripheral side surface of the guide sleeve 13 is in sliding fit with the positioning sealing plate 5, a sealing ring b matched with the guide sleeve 13 is fixedly installed on the inner wall of the positioning sealing plate 5, a sealing disc 14 is in threaded connection with the tail part of the guide sleeve 13, the peripheral side surface of the sealing disc 14 is in sliding fit with the shaft barrel 3, and a sealing ring c matched with the shaft barrel 3 is fixedly installed on the peripheral side surface of the sealing disc 14;

the shaft barrel 3 is internally provided with a first air cavity 15 and a second air cavity 16 which are isolated from each other by taking a sealing disc 14 as a partition, the peripheral side surface of the guide sleeve 13 and the positions corresponding to the first air cavity 15 and the second air cavity 16 are respectively sleeved with a buffer spring 17, two symmetrically arranged air injection pieces 18 are arranged on the peripheral side surface of the shaft barrel 3, one ends of the two air injection pieces 18 are respectively communicated with the first air cavity 15 and the second air cavity 16, each air injection piece 18 comprises a pressure pipe, one end of each pressure pipe is fixedly communicated with the shaft barrel 3, and a pressure gauge and an air valve are respectively fixedly arranged on the peripheral side surface of each pressure pipe;

an inner shaft 19 is fixedly arranged at the inner axis position of the shaft sleeve 1, the peripheral side surface of the inner shaft 19 is in sliding connection with the guide sleeve 13, the inner shaft 19 is of a regular polygon structure, and a sliding hole matched with the shape of the inner shaft 19 is fixedly formed in the inner wall of the guide sleeve 13.

Before assembly, all components are mutually independent, during assembly, firstly, a sleeve 6 is arranged at an installation embedding hole 4, the sleeve 6 is fixed on a positioning sealing plate 5 through a relevant connecting piece after the sleeve 6 is installed, a shaft core 9 is additionally arranged on the inner wall of the sleeve 6, when the shaft core 9 is installed, the position of each guide plate 11 is in sliding fit with a key block 22 at a corresponding position, after the shaft core 9 is installed, a sealing plate 14 is additionally arranged at a guide sleeve 13, after the sealing plate 14 is additionally arranged, a shaft barrel 3 is additionally arranged at the tail part of a flange plate 2, after the shaft barrel 3 is additionally arranged, a sealing head 10 is additionally arranged at the end part of the shaft sleeve 1, after the sealing head 10 is additionally arranged, lubricating oil is filled into the shaft sleeve 1 through an oil supply pipe 7, after the lubricating oil is filled, the first air cavity 15 and the second air cavity 16 are respectively filled with air through two air filling pieces 18, and the air pressure difference between the first air cavity 15 and the second air cavity 16 is controlled, on the one hand, the total length of the shaft sleeve 1, the movable shaft 20 and the shaft barrel 3 can be effectively controlled, and on the other hand, the axial vibration quantity and the displacement quantity between the shaft core 9 and the shaft barrel 3 can be effectively buffered and protected.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a transmission shaft structure, includes axle sleeve (1), its characterized in that, the afterbody fixed mounting of axle sleeve (1) has ring flange (2), the afterbody of axle sleeve (1) is connected with beam barrel (3) through ring flange (2), the inner wall of axle sleeve (1) is fixed to be seted up installation and is inlayed hole (4), the inner wall of installation and inlay hole (4) and the position fixed mounting of adjacent ring flange (2) have location shrouding (5), the inner wall joint of installation and inlay hole (4) has sleeve (6), the week side fixed mounting of axle sleeve (1) has oil feed pipe (7) that communicate with sleeve (6), the inner wall of sleeve (6) is fixed to be seted up card hole (8), the inner wall fixed mounting of card hole (8) has a set of key piece (22) that are circumference array distribution, the inner wall of card hole (8) has axle core (9) through a set of key piece (22) sliding connection, the utility model discloses a pneumatic sealing device, including axle sleeve (1), the week side threaded connection of axle sleeve (1) have with axle core (9) complex head (10), the week side of axle core (9) just corresponds the equal fixed mounting in position of a set of key piece (22) has deflector (11), every deflector (11) inside all inlays and is equipped with a set of universal roller (12) that are linear array and distribute, every group week side and every of universal roller (12) week side all with the key piece (22) sliding connection of corresponding position of deflector (11), the afterbody fixed mounting of axle core (9) has guide sleeve (13), week side and location shrouding (5) sliding fit of guide sleeve (13), the afterbody threaded connection of guide sleeve (13) has sealed dish (14), the week side and the axle barrel (3) sliding fit of sealed dish (14), the axle barrel (3) inside is provided with sealed dish (14) for separating and is mutually isolated first air cavity (15) and second air cavity (16), the position that just corresponds first air cavity (15) and second air cavity (16) all overlaps and is equipped with buffer spring (17) to the all sides of guide sleeve (13), gas injection spare (18) that two symmetries set up are installed to the all sides of axle sleeve (3), two the one end of gas injection spare (18) communicates with first air cavity (15) and second air cavity (16) respectively, axle sleeve (1) inside axis position fixed mounting has interior axle (19), all sides and guide sleeve (13) sliding connection of interior axle (19).

2. A propeller shaft structure according to claim 1, wherein: a set of sealing ring groove that is linear array and distributes is seted up on ring flange (2) surface, the equal fixed mounting in position of shaft barrel (3) surface and corresponding a set of sealing ring groove has sealed bulge loop, every the week side of sealed bulge loop all is connected with the sealing ring groove that corresponds the position.

3. A propeller shaft structure according to claim 1, wherein: the one end fixed mounting of axle core (9) has loose axle (20), the afterbody of an axle section of thick bamboo (3) and the equal fixed mounting of tip of loose axle (20) have universal joint (21), the inner wall fixed mounting of head (10) have with axle core (9) complex sealing washer a, the inner wall fixed mounting of location shrouding (5) has with guide sleeve (13) complex sealing washer b, the week side fixed mounting of sealed dish (14) has with an axle section of thick bamboo (3) complex sealing washer c.

4. A propeller shaft structure according to claim 1, wherein: the air injection piece (18) comprises a pressurizing pipe, one end of the pressurizing pipe is fixedly communicated with the shaft barrel (3), the peripheral side surfaces of the pressurizing pipe are respectively and fixedly provided with a pressure gauge and an air valve, and the peripheral side surfaces of the oil feeding pipe (7) are fixedly provided with oil valves.

5. A propeller shaft structure according to claim 1, wherein: the installation embedding hole (4) and the clamping hole (8) are regular polygon holes, the inner shaft (19) is of a regular polygon structure, a sliding hole matched with the shape of the inner shaft (19) is fixedly formed in the inner wall of the guide sleeve (13), the sleeve (6) is matched with the installation embedding hole (4) in shape, the shaft core (9) is matched with the clamping hole (8) in shape, the number of the key blocks (22) is the same as that of regular polygon sides of the clamping hole (8), and a U-shaped groove matched with the guide plate (11) is formed in each key block (22).

6. A steering drive shaft, characterized by: comprising a propeller shaft arrangement according to any one of claims 1-5.