CN210068785U

CN210068785U - Cross axle type universal coupling

Info

Publication number: CN210068785U
Application number: CN201920791468.5U
Authority: CN
Inventors: 陈玉稳
Original assignee: Wuhan Jianxin Metallurgy Machinery Co Ltd
Current assignee: Wuhan Jianxin Metallurgy Machinery Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-02-14
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a shaft-like universal joint of cross, including half-coupling and cross, half-coupling internally mounted has the cross, and the one end of cross is provided with the cylindric lock. The utility model discloses in, this shaft coupling has set up the cross, the cylindric lock, the bearing overcoat, spacing draw-in groove and spacing lug, in the process of shaft coupling installation use, be provided with a plurality of cylindric locks on the cross, and a plurality of spacing draw-in grooves have been seted up at the surperficial annular equidistance of cylindric lock, when installing grafting with the bearing overcoat and cylindric lock, a plurality of spacing lugs that set up through the inboard equidistance of bearing overcoat carry out the joint installation with a plurality of spacing draw-in grooves on cylindric lock surface, this shaft coupling passes through the setting of spacing draw-in groove and spacing lug, not only can effectual improvement bearing overcoat installation's precision, simultaneously can effectually prevent that the in-process emergence skew of bearing overcoat installation, cause and prevent bearing overcoat and cylindric lock dislocation, the wearing and.

Description

Cross axle type universal coupling

Technical Field

The utility model relates to a shaft coupling technical field especially relates to shaft type universal joint of cross.

Background

A universal joint cross coupling is one of the most commonly used couplings. By using the structural characteristics of the device, two shafts which are not on the same axis or have larger folding angles or larger axial movement can continuously rotate at the same angular speed, and the torque and the movement can be reliably transmitted.

The universal coupling of the cross axle type that uses at present, in the in-process of installation use, when bearing housing and the cylindric lock on the cross axle are pegged graft and are installed, the phenomenon of skew dislocation takes place easily, long-time skew can accelerate the wearing and tearing of cross axle, reduces the stability of shaft coupling operation, also causes the difficulty for changing the dismantlement in the future simultaneously, in addition, the shaft coupling is when using, can take place the phenomenon that the temperature rose because of the friction extrusion of part to make the lubricated butter of its shaft coupling inside take place to ooze outward, reduce the inside degree of lubrication of shaft coupling, the wearing and tearing of acceleration part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cross axle type universal coupling.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the universal coupling comprises a half coupling body and a cross shaft, wherein the cross shaft is arranged inside the half coupling body, a cylindrical pin is arranged at one end of the cross shaft, a limiting clamping groove is formed in the surface of the cylindrical pin, a bearing outer sleeve is connected to the inside of the limiting clamping groove through a limiting convex block, a bearing outer sleeve fork is arranged at one end of the bearing outer sleeve, and the bearing outer sleeve fork is arranged at one end of a rotating shaft fork.

Preferably, the bearing housing sets up because the snap ring with the grafting department of bearing housing fork, and the top that the top of snap ring is located the bearing housing fork has the fixed block through the bolt fastening to one side of fixed block is provided with sealed lid, the oil blanket is installed with the junction of bearing housing to the cylindric lock.

Preferably, one end of the rotating shaft fork is fixed with a spline shaft sleeve through a connecting flange, and a spline shaft is inserted in the spline shaft sleeve.

Preferably, the number of the cylindrical pins and the number of the bearing outer sleeves are the same, and the cylindrical pins and the bearing outer sleeves are symmetrical about the central axis of the cross shaft.

Preferably, the bearing outer sleeve fork and the rotating shaft fork are of an integrated structure.

Preferably, the limiting convex blocks and the limiting clamping grooves are arranged in a plurality, and the limiting convex blocks and the limiting clamping grooves are distributed in an annular equidistant mode.

Preferably, the inner side of the spline shaft sleeve is embedded with a plurality of wear-resistant sleeves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, this shaft coupling has set up cross axle, the cylindric lock, the bearing coat, spacing draw-in groove and spacing lug, in the process of shaft coupling installation use, be provided with a plurality of cylindric locks on the cross axle, and set up a plurality of spacing draw-in grooves at the surperficial annular equidistance of cylindric lock, when installing bearing coat and cylindric lock and peg graft, a plurality of spacing lugs that set up through the inboard equidistance of bearing coat carry out the joint installation with a plurality of spacing draw-in grooves on cylindric lock surface, this shaft coupling passes through the setting of spacing draw-in groove and spacing lug, not only can the effectual precision that improves the bearing coat installation, can effectually prevent bearing coat installation in-process skew simultaneously, cause and prevent bearing coat and cylindric lock dislocation, the wearing and tearing of cross axle are accelerated, reduce the stability of cross;

2. the utility model discloses in, this shaft coupling has set up the oil blanket in the junction of cylindric lock at the bearing overcoat, installation through the oil blanket, can be at the cross operation in-process, the butter that uses the cross lubrication seals, and run through mutually supporting of fixed block and sealed lid through the bolt, can seal once more its cross and the junction of bearing overcoat fork, this shaft coupling passes through the installation of oil blanket and sealed lid, not only can effectually avoid the temperature rise and the part extrusion because of shaft coupling work operation, and cause the inside lubricated butter of shaft coupling to take place the phenomenon of oozing outward, the lubrication protection to the cross has also been improved simultaneously, the life of cross has been prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a universal joint cross shaft coupling provided by the present invention;

fig. 2 is a cross shaft explosion diagram of the cross shaft type universal coupling provided by the present invention;

fig. 3 is the schematic view of the bearing housing mounting structure of the cross-axle type universal coupling provided by the present invention.

Illustration of the drawings:

1. a spline shaft; 2. a wear-resistant sleeve; 3. a rotating shaft fork; 4. a spline shaft sleeve; 5. a connecting flange; 6. a snap ring; 7. a bearing housing; 8. a bearing outer sleeve fork; 9. a fixed block; 10. a sealing cover; 11. a cross shaft; 12. a half coupling; 13. a cylindrical pin; 14. oil sealing; 15. a limiting clamping groove; 16. and a limiting bump.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 3, the universal joint pin type universal coupling includes a coupling half 12 and a cross 11, the cross 11 is installed inside the coupling half 12, a cylindrical pin 13 is installed at one end of the cross 11, a limiting slot 15 is formed on the surface of the cylindrical pin 13, a bearing housing 7 is connected inside the limiting slot 15 through a limiting projection 16, a bearing housing fork 8 is installed at one end of the bearing housing 7, and the bearing housing fork 8 is installed at one end of the rotating shaft fork 3.

Referring to fig. 1, 2 and 3, a snap ring 6 is disposed at the insertion position of the bearing outer sleeve 7 and the bearing outer sleeve fork 8, a fixing block 9 is fixed at the top of the bearing outer sleeve fork 8 above the snap ring 6 through bolts, a sealing cover 10 is disposed at one side of the fixing block 9, an oil seal 14 is disposed at the connection position of the cylindrical pin 13 and the bearing outer sleeve 7, a spline shaft sleeve 4 is fixed at one end of the rotating shaft fork 3 through a connecting flange 5, a spline shaft 1 is inserted into the spline shaft sleeve 4, a plurality of cylindrical pins 13 are disposed on the bearing outer sleeve 7, the number of the cylindrical pins 13 is the same as that of the bearing outer sleeve 7, the cylindrical pins 13 and the bearing outer sleeve 7 are symmetrical about the central axis of the cross shaft 11, the bearing outer sleeve fork 8 and the rotating shaft fork 3 are of an integral structure, a plurality of limiting lugs 16 and a plurality of limiting slots 15 are disposed, and the plurality of limiting lugs 16 and the limiting slots, the inner side of the spline shaft sleeve 4 is embedded with a plurality of wear-resistant sleeves 2, and the wear-resistant sleeves 2 are arranged in a plurality.

The working principle is as follows: in the process of installing and using the coupler, a plurality of cylindrical pins 13 are arranged on a cross shaft 11, a plurality of limiting clamping grooves 15 are annularly and equidistantly arranged on the surfaces of the cylindrical pins 13, when a bearing outer sleeve 7 and the cylindrical pins 13 are installed and spliced, a plurality of limiting lugs 16 which are equidistantly arranged on the inner side of the bearing outer sleeve 7 are clamped and installed with the plurality of limiting clamping grooves 15 on the surfaces of the cylindrical pins 13, then the cross shaft 11 is spliced with a bearing outer sleeve fork 8 and fixed by utilizing a clamping ring 6, the coupler can effectively improve the installation accuracy of the bearing outer sleeve 7 and simultaneously can effectively prevent the bearing outer sleeve 7 from deviating in the installation process, so that the bearing outer sleeve 7 and the cylindrical pins 13 are prevented from being dislocated, the abrasion of the cross shaft 11 is accelerated, the working and running stability of the cross shaft 11 is reduced, and an oil seal 14 is arranged at the joint of the bearing outer sleeve 7 and the cylindrical pins 13, through the installation of oil blanket 14, can be in cross 11 operation in-process, sealed the butter that cross 11 lubrication used, and run through mutually supporting of fixed block 9 and sealed lid 10 through the bolt, can seal again its cross 11 and bearing outer sleeve fork 8's junction, this shaft coupling passes through the installation of oil blanket 14 and sealed lid 10, not only can effectually avoid the temperature rise and the part extrusion because of shaft coupling work operation, and cause the inside lubricated butter of shaft coupling to take place the phenomenon of oozing, also improved the lubrication protection to cross 11 simultaneously, cross 11's life has been prolonged.

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. The universal coupling with the cross shaft type comprises a half coupling (12) and a cross shaft (11) and is characterized in that the cross shaft (11) is mounted inside the half coupling (12), a cylindrical pin (13) is arranged at one end of the cross shaft (11), a limiting clamping groove (15) is formed in the surface of the cylindrical pin (13), a bearing outer sleeve (7) is connected inside the limiting clamping groove (15) through a limiting convex block (16), a bearing outer sleeve fork (8) is mounted at one end of the bearing outer sleeve (7), and the bearing outer sleeve fork (8) is arranged at one end of a rotating shaft fork (3).

2. The cross shaft type universal coupling according to claim 1, wherein a snap ring (6) is arranged at the insertion joint of the bearing outer sleeve (7) and the bearing outer sleeve fork (8), a fixed block (9) is fixed at the top of the bearing outer sleeve fork (8) above the snap ring (6) through a bolt, a sealing cover (10) is arranged on one side of the fixed block (9), and an oil seal (14) is arranged at the joint of the cylindrical pin (13) and the bearing outer sleeve (7).

3. A universal joint cross shaft coupling according to claim 1, wherein a spline shaft sleeve (4) is fixed to one end of the rotating shaft yoke (3) through a connecting flange (5), and a spline shaft (1) is inserted into the spline shaft sleeve (4).

4. A universal joint cross shaft coupling according to claim 1, wherein a plurality of the cylindrical pins (13) and the bearing outer sleeve (7) are provided, the number of the plurality of the cylindrical pins (13) and the number of the bearing outer sleeve (7) are the same, and the cylindrical pins (13) and the bearing outer sleeve (7) are symmetrical with respect to the central axis of the cross shaft (11).

5. A universal joint cross shaft coupling according to claim 1, characterised in that the bearing yoke (8) is of one-piece construction with the rotating shaft yoke (3).

6. A cross-shaft type universal coupling according to claim 1, wherein a plurality of limiting lugs (16) and limiting clamping grooves (15) are provided, and the plurality of limiting lugs (16) and the limiting clamping grooves (15) are distributed in an annular and equidistant manner.

7. A universal joint cross shaft coupling according to claim 3, wherein the spline shaft sleeve (4) is embedded with a plurality of wear-resistant sleeves (2) at the inner side thereof, and the wear-resistant sleeves (2) are provided in plurality.