CN216382291U

CN216382291U - Improved generation car universal joint

Info

Publication number: CN216382291U
Application number: CN202123004792.4U
Authority: CN
Inventors: 刘晔; 严伟; 顾权; 赵毅红
Original assignee: Xinghua Wanjia Machinery Co ltd
Current assignee: Xinghua Wanjia Machinery Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-04-26
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses an improved automobile universal joint, which comprises a power mechanism, a transmission mechanism and an adjusting self-locking mechanism, wherein the power mechanism comprises a power shaft, one end of the power shaft is provided with a connecting piece A, one end of the connecting piece A, which deviates from the power shaft, is provided with a cross shaft through a bearing, the transmission mechanism comprises a transmission shaft sleeve, an installation rod and a buffer spring, two ends of the interior of the transmission shaft sleeve are symmetrically provided with installation grooves, inner key grooves are arranged in the installation grooves, the installation rod is slidably arranged in the installation grooves, the surface of the installation rod is provided with an outer key, the utility model provides an improved automobile universal joint, a dust cap is additionally arranged at the end part of the cross shaft at the joint in the connecting process so as to prevent dust from entering the joint of the universal joint to influence the rotation of the bearing in the driving process of an automobile, and adjustable springs are arranged at two ends of the device, so as to increase the buffer to the transmission shaft when dealing with the bumpy road section.

Description

Improved generation car universal joint

Technical Field

The utility model belongs to the technical field of automobile universal joints, and particularly relates to an improved automobile universal joint.

Background

The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The universal joint is combined with a transmission shaft and is called a universal joint transmission device. On a vehicle driven by a rear wheel of a front engine, a universal joint transmission device is arranged between an output shaft of a transmission and an input shaft of a main speed reducer of a drive axle; the front engine front wheel driven vehicle omits a transmission shaft, and the universal joint is arranged between a front axle half shaft which is responsible for driving and steering and wheels. CN 213744581U among the prior art discloses a high transmission shaft universal joint of reliability to the phenomenon that the transmission shaft breaks because of receiving too big jolt in the adaptation automobile driving process, jolt the effort that produces the transmission shaft through the spring with the buffering among the prior art, nevertheless can't adjust inside spring according to actual conditions, in order to conveniently use in different highway sections of going, prevent the elasticity foot of spring when too big jolt, perhaps meet when less jolt because of the too big effect that leads to can't playing the buffering of spring elasticity.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide an improved automotive universal joint to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: an improved automobile universal joint comprises a power mechanism, a transmission mechanism and an adjusting self-locking mechanism, wherein the power mechanism comprises a power shaft, a connecting piece A is arranged at one end of the power shaft, a cross shaft is arranged at one end, deviating from the power shaft, of the connecting piece A through a bearing, the transmission mechanism comprises a transmission shaft sleeve, an installation rod and a buffer spring, installation grooves are symmetrically formed in two ends of the interior of the transmission shaft sleeve, an inner key groove is formed in the installation grooves, the installation rod is slidably installed in the installation grooves, an outer key is arranged on the surface of the installation rod and is arranged in the inner key groove in a size matched mode, the installation rod penetrates through the end surface of the transmission shaft sleeve, a connecting piece B is arranged at one end of the installation rod and is arranged on the outer side of the transmission shaft sleeve, the connecting piece B is arranged on the cross shaft through a bearing installation seat and is perpendicular to the connecting piece A, the cross shaft penetrates through the connecting piece A and the connecting piece B respectively, and the end part of the cross shaft is screwed with a bearing dustproof cap through threads.

Preferably, the inside activity storehouse of having seted up of driving sleeve, the spout has been seted up to the mounting groove inboard, the both ends in activity storehouse are seted up to the spout symmetry, the spout link up with mounting groove and activity storehouse are inside respectively, the inside slidable mounting of spout has the adjusting block, one side that the adjusting block is close to the activity storehouse is provided with the extension.

Preferably, the buffer spring is symmetrically arranged in the mounting groove, one end of the buffer spring is in contact with the adjusting block, and the other end of the buffer spring is in surface contact with the end part of the mounting rod.

Preferably, the adjustment self-locking mechanism comprises an adjustment knob and a limiting part, the adjustment knob is installed on the surface of the transmission shaft sleeve through a bearing, a limiting tooth groove is formed in the upper portion of the inner portion of the movable bin, the adjustment knob penetrates through the limiting tooth groove, an adjustment cam is arranged on the adjustment knob, and the adjustment cam is arranged inside the movable bin.

Preferably, the surfaces of the two sides of the adjusting cam are in contact with the extending piece, a mounting hole is formed in the lower portion of the inner portion of the adjusting knob, open grooves are symmetrically formed in the surface of the adjusting knob, and the open grooves are communicated with the inner portion of the mounting hole.

Preferably, the limiting part is slidably mounted in the mounting hole, limiting toothed bars are symmetrically arranged at the bottoms of the limiting parts and penetrate through the open grooves, and one ends of the limiting toothed bars, which are far away from the limiting part, are meshed with the limiting tooth grooves.

Preferably, the adjusting bin has been seted up to inside top of adjustment knob, the adjusting lever is installed to adjustment knob circular arc face symmetry, two adjusting lever slidable mounting is inside the adjustment knob, the adjusting lever tip runs through the adjustment knob main part, the connecting rod is installed through the round pin axle to adjusting lever one end, inside the adjusting bin was arranged in to the connecting rod, two the one end that the connecting rod deviates from the adjusting lever is installed at the top of locating part through the round pin axle.

Preferably, a limiting spring is arranged below the inner part of the mounting hole, and the top of the limiting spring is in surface contact with the bottom of the limiting part.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a modified automobile universal joint, wherein a dustproof cap is added at the end part of a cross shaft at a connecting part in the connecting process to prevent flying dust from entering the connecting part of the universal joint to influence the rotation of a bearing in the driving process of an automobile, adjustable springs are arranged at the two ends of the device to increase the buffer to a transmission shaft when the automobile is in a bumpy road section, the springs are adjusted by adjusting an internal mechanism to adapt to the influence of different road sections on the transmission shaft, and the service life of the whole universal joint is prolonged.

Drawings

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

FIG. 2 is a schematic view of a cross-shaft configuration of the present invention;

FIG. 3 is a longitudinal cross-sectional elevation view of the transmission of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 2 in accordance with the present invention;

fig. 5 is a schematic structural view of the adjusting self-locking mechanism of the present invention.

In the figure: 1. a power mechanism; 101. a power shaft; 102. a connecting piece A; 103. a cross shaft; 104. a bearing dust cap; 2. a transmission mechanism; 201. a driving shaft sleeve; 202. mounting grooves; 203. an inner keyway; 204. mounting a rod; 205. an external bond; 206. a connecting piece B; 207. a chute; 208. an adjusting block; 209. an extension member; 210. a movable bin; 211. a limiting tooth socket; 212. a buffer spring; 3. adjusting the self-locking mechanism; 301. adjusting a knob; 302. adjusting the cam; 303. adjusting the bin; 304. mounting holes; 305. opening the groove; 306. an adjusting lever; 307. a connecting rod; 308. a limiting member; 309. a limit toothed bar; 310. and a limiting spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: an improved automobile universal joint comprises an actuating unit 1, a transmission mechanism 2 and an adjusting self-locking mechanism 3, wherein the actuating unit 1 comprises a power shaft 101, a connecting piece A102 is arranged at one end of the power shaft 101, a cross shaft 103 is arranged at one end, away from the power shaft 101, of the connecting piece A102 through a bearing, the transmission mechanism 2 comprises a transmission shaft sleeve 201, an installation rod 204 and a buffer spring 212, installation grooves 202 are symmetrically formed in two ends of the interior of the transmission shaft sleeve 201, inner key grooves 203 are formed in the interior of the installation grooves 202, the installation rod 204 is slidably installed in the interior of the installation grooves 202, outer keys 205 are arranged on the surface of the installation rod 204 and are matched with the inner key grooves 203 in size, the installation rod 204 penetrates through the end surface of the transmission shaft sleeve 201, a connecting piece B206 is arranged at one end of the installation rod 204, the connecting piece B206 is arranged on the outer side of the transmission shaft sleeve 201, the connecting piece B206 is arranged on the cross shaft 103 through a bearing installation seat, and the connecting piece B206 is perpendicular to the connecting piece A102, the cross shaft 103 penetrates through the connecting piece A102 and the connecting piece B206 respectively, and the bearing dust cap 104 is screwed at the end part of the cross shaft 103 through threads.

In order to adjust the buffer spring 212 by adjusting the position of the adjusting block 208, and increase or reduce the acting force of the buffer spring 212 on the mounting rod 204, in this embodiment, preferably, a movable bin 210 is disposed inside the driving sleeve 201, a sliding slot 207 is disposed inside the mounting slot 202, the sliding slot 207 is symmetrically disposed at two ends of the movable bin 210, the sliding slot 207 is respectively communicated with the mounting slot 202 and the movable bin 210, the adjusting block 208 is slidably disposed inside the sliding slot 207, an extending member 209 is disposed on one side of the adjusting block 208 close to the movable bin 210, the buffer spring 212 is symmetrically disposed inside the mounting slot 202, one end of the buffer spring 212 contacts with the adjusting block 208, and the other end of the buffer spring 212 contacts with the end surface of the mounting rod 204.

In order to ensure that the adjustment knob 301 and the adjustment cam 302 cannot rotate without human action, in this embodiment, preferably, the adjustment self-locking mechanism 3 includes an adjustment knob 301 and a limiting member 308, the adjustment knob 301 is mounted on the surface of the driving sleeve 201 through a bearing, a limiting tooth slot 211 is formed above the inside of the movable bin 210, the adjustment knob 301 penetrates through the limiting tooth slot 211, the adjustment knob 301 is provided with the adjustment cam 302, and the adjustment cam 302 is disposed inside the movable bin 210.

Through the rotation of the adjusting cam 302, the position of the two-end adjusting block 208 is adjusted at the same time, in this embodiment, preferably, the two side surfaces of the adjusting cam 302 contact with the extending piece 209, the inner lower part of the adjusting knob 301 is provided with a mounting hole 304, the surface of the adjusting knob 301 is symmetrically provided with open grooves 305, and the open grooves 305 are communicated with the inner part of the mounting hole 304.

In order to ensure that self-locking can be achieved after adjustment is completed, in this embodiment, preferably, the limiting member 308 is slidably mounted inside the mounting hole 304, the bottom of the limiting member 308 is symmetrically provided with limiting toothed bars 309, the limiting toothed bars 309 penetrate through the open slot 305, one end of the limiting toothed bar 309, which is far away from the limiting member 308, is engaged with the limiting toothed slot 211, the adjusting bin 303 is disposed above the inside of the adjusting knob 301, the adjusting bars 306 are symmetrically mounted on the arc surface of the adjusting knob 301, the two adjusting bars 306 are slidably mounted inside the adjusting knob 301, the end of the adjusting bar 306 penetrates through the main body of the adjusting knob 301, one end of the adjusting bar 306 is mounted with a connecting bar 307 through a pin, the connecting bar 307 is disposed inside the adjusting bin 303, one ends of the two connecting bars 307, which are far away from the adjusting bar 306, are mounted at the top of the limiting member 308 through a pin, the limiting spring 310 is disposed below the inside of the mounting hole 304, and the top of the limiting spring 310 is in surface contact with the bottom of the limiting member 308.

The working principle and the using process of the utility model are as follows: after the automobile is installed, firstly, the installation and the safety protection of the automobile are checked, then, one ends of the two power shafts 101, which are far away from the connecting piece A102, are respectively connected with a power input end and a power output end, the connecting piece A102 and the connecting piece B206 are respectively and vertically installed on the cross shaft 103 through bearings, corresponding angles are adjusted through the cross shaft 103, after the installation is finished, the bearing dust caps 104 are respectively screwed at the end parts of the cross shaft 103, so that dust is prevented from entering the bearings connected with the cross shaft 103 to corrode the bearings when the automobile moves, as the installation rods 204 are slidably installed at the two sides of the transmission shaft sleeve 201, and the outer keys 205 and the inner key grooves 203 are mutually limited, at the moment, the installation rods 204 can only slide along the track of the installation grooves 202 and can not mutually rotate, so that the power transmission process can not be hindered, meanwhile, due to the action of the limiting spring 310, the limiting member 308 is always positioned at the uppermost end of the stroke, so the end part of the adjusting rod 306 can penetrate through the surface of the adjusting knob 301, the end part of the limiting toothed bar 309 and the limiting toothed groove 211 are limited mutually, at the moment, the adjusting knob 301 cannot rotate, the adjusting cam 302 cannot rotate, the extending member 209 cannot move because the two ends of the adjusting cam 302 are respectively contacted with the extending member 209, so that the adjusting block 208 is fixed in the sliding groove 207 and cannot move, therefore, the elastic force of the buffer spring 212 reaches a balanced state, no extrusion effect is generated on the mounting rod 204, because the automobile engine and the tire shaft are not positioned at the same horizontal position, the transmission shaft sleeve 201 cannot be absolutely parallel in the mounting process, and when the automobile runs, the front and the rear parts must bump, because the damping action of the automobile itself may cause the extrusion of the driving shaft sleeve 201, the buffer spring 212 is arranged in the automobile, so that the connecting piece B206 can always have an outward thrust, in the bumping process, the corresponding stress change can be relieved by the phase change of the buffer spring 212 when being extruded, and meanwhile, the transmission of the whole driving shaft is not influenced, the self-locking mechanism 3 can be adjusted according to different road sections to extrude the buffer springs 212 at two ends so as to adjust the deformation threshold value of the spring, the adjusting rod 306 is manually extruded and the adjusting knob 301 is rotated, the inward movement of the adjusting rod 306 can press the limiting piece 308 through the connecting rod 307 to enable the limiting toothed bar 309 to be disengaged from the limiting toothed groove 211, at the moment, the force of the limiting spring 310 is accumulated, the rotation of the adjusting knob 301 can drive the adjusting cam 302 to rotate, and then the adjusting block 208 is pushed to move, after the adjustment is finished, the adjusting rod 306 is loosened, the self-locking mechanism 3 can be adjusted to perform self-locking immediately due to the action of the limiting spring 310, and the adjusting cam 302 is prevented from rotating due to stress.

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. The utility model provides an improved generation car universal joint, includes power unit (1), drive mechanism (2) and adjustment self-locking mechanism (3), its characterized in that: the power mechanism (1) comprises a power shaft (101), a connecting piece A (102) is arranged at one end of the power shaft (101), a cross shaft (103) is installed at one end, deviating from the power shaft (101), of the connecting piece A (102) through a bearing, the transmission mechanism (2) comprises a transmission shaft sleeve (201), an installation rod (204) and a buffer spring (212), installation grooves (202) are symmetrically formed in two ends of the interior of the transmission shaft sleeve (201), an inner key groove (203) is formed in the interior of each installation groove (202), the installation rod (204) is slidably installed in the interior of each installation groove (202), an outer key (205) is arranged on the surface of each installation rod (204), the outer keys (205) are arranged in the inner key grooves (203) and matched in inner size, the installation rod (204) penetrates through the end surface of the transmission shaft sleeve (201), and a connecting piece B (206) is arranged at one end of the installation rod (204), the connecting piece B (206) is arranged on the outer side of the transmission shaft sleeve (201), the connecting piece B (206) is arranged on the cross shaft (103) through a bearing mounting seat, the connecting piece B (206) is perpendicular to the connecting piece A (102), the cross shaft (103) penetrates through the connecting piece A (102) and the connecting piece B (206) respectively, and the end part of the cross shaft (103) is screwed with a bearing dust cap (104) through threads.

2. An improved automotive gimbal according to claim 1, in which: the utility model discloses a movable bin (210) has been seted up to driving sleeve (201) inside, spout (207) have been seted up to mounting groove (202) inboard, the both ends in movable bin (210) are seted up to spout (207) symmetry, spout (207) link up with mounting groove (202) and movable bin (210) inside respectively, spout (207) inside slidable mounting has adjusting block (208), one side that adjusting block (208) are close to movable bin (210) is provided with extension (209).

3. An improved automotive gimbal according to claim 2, in which: the buffer spring (212) is symmetrically arranged in the mounting groove (202), one end of the buffer spring (212) is in contact with the adjusting block (208), and the other end of the buffer spring (212) is in contact with the end surface of the mounting rod (204).

4. An improved automotive gimbal according to claim 3, in which: the adjusting self-locking mechanism (3) comprises an adjusting knob (301) and a limiting piece (308), the adjusting knob (301) is installed on the surface of the transmission shaft sleeve (201) through a bearing, a limiting tooth groove (211) is formed in the upper portion of the inner portion of the movable bin (210), the adjusting knob (301) penetrates through the limiting tooth groove (211), an adjusting cam (302) is arranged on the adjusting knob (301), and the adjusting cam (302) is arranged in the movable bin (210).

5. An improved automotive gimbal according to claim 4, in which: the surface of both sides of adjusting cam (302) contacts with extension piece (209), adjusting knob (301) inside below has seted up mounting hole (304), adjusting knob (301) surface symmetry has seted up open groove (305), open groove (305) link up with mounting hole (304) inside.

6. An improved automotive gimbal according to claim 5, in which: the limiting piece (308) is slidably mounted inside the mounting hole (304), the bottom of the limiting piece (308) is symmetrically provided with a limiting toothed bar (309), the limiting toothed bar (309) penetrates through the open groove (305), and one end, deviating from the limiting piece (308), of the limiting toothed bar (309) is meshed with the limiting toothed groove (211).

7. An improved automotive gimbal according to claim 6, wherein: adjustment storehouse (303) have been seted up to inside top of adjust knob (301), adjust knob (301) circular arc surface symmetry installs adjusting lever (306), two adjusting lever (306) slidable mounting is inside adjust knob (301), adjusting lever (306) tip runs through adjust knob (301) main part, connecting rod (307) are installed through the round pin axle to adjusting lever (306) one end, inside adjust storehouse (303) was arranged in connecting rod (307), two the top at locating part (308) is passed through the round pin axle to the one end that connecting rod (307) deviate from adjusting lever (306).

8. An improved automotive gimbal according to claim 7, wherein: a limiting spring (310) is arranged below the inner part of the mounting hole (304), and the top of the limiting spring (310) is in surface contact with the bottom of the limiting piece (308).