CN215762893U - Push rod universal joint connection structure - Google Patents

Abstract

The utility model provides a push rod universal joint connecting structure which comprises push rod parts and universal joint parts, wherein the universal joint parts are arranged between the two push rod parts through first installation parts, each universal joint part comprises a cross shaft, a roller pin, a sleeve, a clamping ring and a universal joint fork, the sleeve is sleeved outside the cross shaft, the roller pins are installed in the sleeve, the outer surface of a shaft body of the cross shaft is abutted to the roller pins, the sleeve is detachably connected with the universal joint fork through second installation parts, the clamping ring is fixedly installed on one side, away from the cross shaft, of the sleeve, and the clamping ring is abutted to the universal joint fork. The universal joint has the advantages of better rotation stability, better bearing capacity and long service life.

Description

Push rod universal joint connection structure

Technical Field

The utility model relates to the technical field of universal joints, in particular to a push rod universal joint connecting structure.

Background

The universal joint is a universal joint, and the English name universal joint is a part for realizing variable-angle power transmission and is used for changing the position of a transmission axis direction. 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.

The universal joint structure in the push rod structure is less in application, a universal joint connecting structure which is more stable and stronger in bearing capacity is needed, and the steering and connecting effects of the push rod structure can be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a push rod universal joint connecting structure which is applied to a push rod connecting structure by technically improving the existing universal joint structure and solves the problems that the existing push rod connecting universal joint is not stable enough and has short service life.

In order to solve the technical problems, the utility model specifically adopts the following technical scheme:

the utility model provides a push rod universal joint connection structure, includes push rod part and universal joint part, the universal joint part sets up between two push rod parts through first installation department installation, the universal joint part includes cross, kingpin, sleeve, snap ring and universal joint fork, the outside cover of cross is equipped with the sleeve, install the kingpin in the sleeve, the surface and the kingpin of the axis body of cross are inconsistent, the sleeve can be dismantled with the universal joint fork through the second installation department and be connected, one side that the sleeve deviates from the cross still fixed mounting have the snap ring, the snap ring is inconsistent with the universal joint fork.

Preferably, first installation department includes first mounting groove, first through-hole, first connecting hole and fixing bolt, first mounting groove has been seted up to the push rod part, the tail end that the universal joint fork deviates from the cross is inlayed and is inserted in the first mounting groove, first through-hole has still been seted up on the tail end of universal joint fork, first connecting hole has been seted up with the universal joint fork junction to the push rod part, and the universal joint fork inlays to be inserted when in the first mounting groove first through-hole is just right setting up with first connecting hole, fixing bolt passes first connecting hole and first through-hole in proper order and connects fixed universal joint fork and push rod part.

Preferably, the second installation department includes screw hole and external screw thread, the sleeve outside is provided with the external screw thread, the last installation site department that corresponds with the sleeve of universal joint fork is provided with the screw hole, sleeve thread installs inside the universal joint fork.

Preferably, an annular groove is further formed in the threaded hole of the universal joint fork, and a clamping ring is mounted in the annular groove.

Preferably, the upper groove surface of the annular groove is an inclined surface gradually decreasing from inside to outside, and the upper surface of the snap ring is an inclined surface matched with the upper groove surface.

Preferably, a communicated cross oil passage is arranged in the cross shaft, an oil inlet is formed in the middle of the cross shaft, and an oil nozzle is sealed at the oil inlet.

Preferably, an oil seal is sleeved at the shaft body of the cross shaft and is abutted to the bottom surface of the sleeve.

Preferably, the universal joint part is further wrapped with a protective cover, and two ends of the protective cover are respectively connected with the push rod parts on two sides.

Compared with the prior art, the utility model has the following beneficial effects:

the push rods are connected through the universal joint part, so that the rotatable connection of the push rods is realized, the sleeve is sleeved outside the cross shaft in the universal joint and is arranged on the universal joint forks, the sleeve is sleeved on the cross shaft body, so that the cross shaft is arranged at the position between the universal joint forks, the cross shaft body is movably connected with the roller pin arranged in the sleeve and can freely roll, and the two universal joint forks on the cross shaft can rotate mutually.

According to the universal joint fork, the sleeve is in threaded connection with the universal joint fork, the sleeve is screwed into the universal joint fork from the outer threads of the universal joint fork, the sleeve and the universal joint fork are connected more stably and cannot rotate relatively, so that the cross shaft body and the roller pin move relatively more stably, and the service life is longer.

According to the universal joint fork, the annular groove is formed in the universal joint fork, the clamping ring is installed in the annular groove, the upper groove surface of the annular groove is an inclined surface which gradually decreases from inside to outside, the upper surface of the clamping ring is an inclined surface which is matched with the upper groove surface, so that the clamping ring is clamped with the annular groove more tightly, the clamping ring is pushed when the sleeve moves outwards from the inside of the universal joint fork, the clamping ring cannot be separated from the annular groove easily, the sleeve is installed more tightly, the rotation stability of the cross shaft is improved, the bearing capacity is improved, and the service life is prolonged.

Drawings

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

FIG. 2 is a schematic exploded view of the present invention;

FIG. 3 is a schematic view of a second mounting portion of the present invention;

FIG. 4 is a schematic cross-sectional view of the annular groove of the present invention;

description of reference numerals: the push rod part 1, the universal joint part 2, the cross shaft 21, the oil inlet 211, the oil nipple 212, the needle roller 22, the sleeve 23, the snap ring 24, the universal joint yoke 25, the annular groove 251, the first mounting part 3, the first mounting groove 31, the first through hole 32, the first connecting hole 33, the second mounting part 4, the threaded hole 41, the external thread 42, and the shield 5.

Detailed Description

The details of the present invention will be described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, the embodiment provides a push rod universal joint connection structure, which includes a push rod part 1 and a universal joint part 2, the universal joint part 2 is installed and disposed between the two push rod parts 1 through a first installation part 3, the universal joint part 2 includes a cross 21, a roller pin 22, a sleeve 23, a snap ring 24 and a universal joint fork 25, the sleeve 23 is sleeved outside the cross 21, the roller pin 22 is installed in the sleeve 23, the outer surface of the shaft body of the cross 21 is abutted to the roller pin 22, the sleeve 23 is detachably connected to the universal joint fork 25 through a second installation part 4, the snap ring 24 is further fixedly installed on one side of the sleeve 23 departing from the cross 21, and the snap ring 24 is abutted to the universal joint fork 25.

Further, in order to realize the installation of push rod part 1 and universal joint part 2, first installation department 3 includes first mounting groove 31, first through-hole 32, first connecting hole 33 and fixing bolt, push rod part 1 has seted up first mounting groove 31, the tail end that universal joint fork 25 deviates from cross 21 inlays and inserts in first mounting groove 31, first through-hole 32 has still been seted up on the tail end of universal joint fork 25, first connecting hole 33 has been seted up with universal joint fork 25 junction to push rod part 1, when universal joint fork 25 inlays and inserts in first mounting groove 31 first through-hole 32 is just right to setting up with first connecting hole 33, fixing bolt passes first connecting hole 33 and first through-hole 32 in proper order and connects fixed universal joint fork 25 and push rod part 1.

Further, in order to enable the sleeve 23 to be tightly mounted in the yoke 25, the second mounting portion 4 includes a threaded hole 41 and an external thread 42, the external thread 42 is provided on the outside of the sleeve 23, the threaded hole 41 is provided at a mounting portion of the yoke 25 corresponding to the sleeve 23, and the sleeve 23 is threadedly mounted inside the yoke 25.

Further, in order to mount the snap ring 24, an annular groove 251 is further provided in the threaded hole 41 of the yoke 25, and the snap ring 24 is mounted in the annular groove 251.

Further, in order to obtain better stability of the installation of the snap ring 24, the upper groove surface of the annular groove 251 is an inclined surface gradually decreasing from inside to outside, and the upper surface of the snap ring 24 is an inclined surface matching with the upper groove surface.

Further, in order to conveniently supply lubricating oil, a communicated cross oil passage is arranged inside the cross shaft 21, an oil inlet 211 is formed in the middle of the cross shaft 21, and an oil nozzle 212 is sealed at the oil inlet 211.

Further, an oil seal is sleeved at the shaft body of the cross shaft 21 and is abutted to the bottom surface of the sleeve 23.

Further, in order to prevent dust and dust, the outer part of the universal joint part 2 is further wrapped with a protective cover 5, and two ends of the protective cover 5 are respectively connected with the push rod parts 1 on two sides. The protection casing 5 is made of soft materials and can be bent to a certain degree to rotate.

The push rods of the embodiment are connected through universal joint parts, the rotatable connection of the push rods is achieved, the sleeve is sleeved outside the cross shaft in the universal joint and is installed on the universal joint forks, the sleeve is sleeved on the cross shaft body, the cross shaft is installed at the position between the universal joint forks, the cross shaft body is movably connected with the roller pin arranged in the sleeve and can roll freely, and the two universal joint forks can rotate mutually on the cross shaft.

This embodiment sleeve and universal joint fork threaded connection, in the sleeve was twisted into universal joint fork from the outside screw thread of universal joint fork, the sleeve was connected more firmly with the universal joint fork, can not take place relative rotation for more stable when the cross axle body was with kingpin relative motion, life is longer.

Be provided with annular groove in this embodiment universal joint fork, the snap ring is installed in the annular groove, the inclined plane that the grooving face reduces gradually from inside to outside on the annular groove, the snap ring upper surface be with last grooving face matched with inclined plane for the snap ring is inseparabler with the annular groove block, promotes the snap ring when the sleeve outwards moves from universal joint fork, and the snap ring can not break away from the annular groove easily, makes the sleeve installation inseparabler, thereby improves the rotational stability of cross, improves the bearing capacity, increase of service life.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or through an intermediary, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

Claims (8)

1. The utility model provides a push rod universal joint connection structure, a serial communication port, includes push rod part and universal joint part, the universal joint part sets up between two push rod parts through first installation department installation, the universal joint part includes cross, kingpin, sleeve, snap ring and universal joint fork, the outside cover of cross is equipped with the sleeve, install the kingpin in the sleeve, the surface and the kingpin of the axis body of cross are inconsistent, the sleeve passes through the second installation department and can dismantle with the universal joint fork and be connected, one side that the sleeve deviates from the cross still fixed mounting have the snap ring, the snap ring is inconsistent with the universal joint fork.

2. The push rod universal joint connecting structure according to claim 1, wherein the first mounting portion includes a first mounting groove, a first through hole, a first connecting hole and a fixing bolt, the first mounting groove is formed in the push rod portion, the tail end of the universal joint fork, which is away from the cross shaft, is inserted into the first mounting groove, the first through hole is further formed in the tail end of the universal joint fork, the first connecting hole is formed at a joint of the push rod portion and the universal joint fork, the first through hole and the first connecting hole are arranged in a right-to-right manner when the universal joint fork is inserted into the first mounting groove, and the fixing bolt sequentially penetrates through the first connecting hole and the first through hole to connect the fixed universal joint fork and the push rod portion.

3. The push rod universal joint connecting structure according to claim 1, wherein the second mounting portion comprises a threaded hole and an external thread, the external thread is arranged outside the sleeve, a threaded hole is arranged at a mounting portion of the universal joint yoke corresponding to the sleeve, and the sleeve is mounted inside the universal joint yoke in a threaded manner.

4. The push rod and universal joint connecting structure according to claim 3, wherein an annular groove is further formed in the threaded hole of the universal joint yoke, and a snap ring is mounted in the annular groove.

5. The push-rod gimbal connection structure of claim 4, wherein the annular groove has an upper groove surface that is a slope gradually decreasing from inside to outside, and the snap ring has an upper surface that is a slope that matches the upper groove surface.

6. The push rod universal joint connecting structure according to claim 1, wherein a cross oil passage is provided in the cross shaft, an oil inlet is provided in the middle of the cross shaft, and an oil nipple is closed at the oil inlet.

7. The push rod universal joint connecting structure according to claim 6, wherein an oil seal is sleeved at the shaft body of the cross shaft and abuts against the bottom surface of the sleeve.

8. The push rod universal joint connecting structure according to claim 1, wherein a protective cover is further wrapped outside the universal joint part, and two ends of the protective cover are respectively connected with the push rod parts on two sides.

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