CN220452542U

CN220452542U - Multipurpose spacing two-way spline cross axle type universal coupling

Info

Publication number: CN220452542U
Application number: CN202322104057.3U
Authority: CN
Inventors: 童坤; 邵帅; 张建; 秦磊; 袁桂阳
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-02-06
Anticipated expiration: 2033-08-04

Abstract

The utility model discloses a multipurpose spacing bidirectional spline cross-shaft type universal coupling, which comprises a spline housing assembly and spline shaft assemblies respectively arranged at two sides of the spline housing assembly; the spline housing assembly comprises a spline housing body with inner splines respectively arranged at two sides of an inner hole; the spline shaft assembly comprises a fork head shaft, the fork head shaft comprises a connecting sleeve and a spline shaft which is axially arranged at the center of the inner side of the connecting sleeve and is provided with an external spline which is matched with an internal spline of an inner hole of a spline sleeve body, the space between the spline shaft and the connecting sleeve is matched with the wall thickness of the end part of the spline sleeve body, the spline shaft is in spline connection with the inner side of the end part of the spline sleeve body, the connecting sleeve is sleeved on the outer side of the end part of the spline sleeve body, and the outer side of the connecting sleeve and the outer side of the spline sleeve body are provided with positioning and locking assemblies. The utility model can be used under various working conditions, the spare parts can be reduced by one shaft with multiple purposes, the maintenance time can be shortened when faults occur, the service life of the product is prolonged, the whole shaft is quieter to operate, and the damping and silencing effects are achieved.

Description

Multipurpose spacing two-way spline cross axle type universal coupling

Technical Field

The utility model belongs to the technical field of couplings, and relates to a multipurpose spacing bidirectional spline cross-shaft type universal coupling.

Background

The cross shaft type universal coupling is one of very common parts in transmission equipment, has the characteristics of large angle supplementing capability, large bearing capacity, high transmission efficiency, stable carrying, noise drop, convenient disassembly and maintenance and the like, is commonly used for connecting two shafts (a driving shaft and a driven shaft) in different mechanisms to jointly rotate so as to transmit torque, and simultaneously has the function of compensating axial, angular and radial offset between the driving shaft and the driven shaft caused by manufacturing errors, installation errors, bearing deformation, temperature change and the like.

The traditional cross shaft type universal coupling mainly comprises a flange fork, a cross package assembly, a spline shaft assembly, a spline pair assembly and the like, wherein the flange fork and the spline shaft assembly are matched with the cross package assembly to be assembled into one side of the universal shaft, and the other side of the universal shaft comprises the flange fork, the cross package assembly and the spline pair assembly. The whole shaft of traditional structure usually has one set of spline, and when this axle was used for like one-way continuous rolling operating mode such as ESP, MCCR, unilateral spline atress for a long time leads to unable formation oil film, and lubrication is unsmooth often can lead to spline tooth portion to intensify accelerate wearing and tearing and distortion even, and then leads to the cardan shaft to lose flexible function, can only scrap whole set of spline even whole shaft and scrap this moment, and change required man-hour also longer, under the not enough circumstances of scene spare part, often can lead to the production line to stop production. In addition, because the operating mode is poor, the bolt for the shaft coupling installation often has the dilemma that can't be dismantled because of the bolt that corrosion leads to, influences the maintenance of shaft coupling.

Disclosure of Invention

Aiming at the technical problems that the existing cross-shaft type universal coupling in the background technology is relatively large in single-set spline load and easy to damage when aiming at the unidirectional continuous rolling working conditions such as ESP, MCCR and the like, and the spare part demand of the production site is relatively large once the single-set spline load is damaged and the replacement cycle is too long, the utility model provides the multipurpose limitable bidirectional spline cross-shaft type universal coupling.

The technical scheme for solving the technical problems is as follows:

the utility model relates to a multipurpose spacing bidirectional spline cross-shaft type universal coupling, which comprises a spline housing assembly and spline shaft assemblies respectively arranged at two sides of the spline housing assembly; the spline housing assembly comprises a spline housing body with inner splines respectively arranged at two sides of an inner hole; the spline shaft assembly comprises a fork shaft, the fork shaft comprises a connecting sleeve and a spline shaft which is axially arranged at the center of the inner side of the connecting sleeve and is provided with an external spline matched with an internal spline of an inner hole of a spline housing body, the space between the spline shaft and the connecting sleeve is matched with the wall thickness of the end part of the spline housing body, the spline shaft is in spline connection with the inner side of the end part of the spline housing body, the connecting sleeve is sleeved on the outer side of the end part of the spline housing body, and a positioning locking assembly is arranged on the outer side of the connecting sleeve and the outer side of the spline housing body.

Preferably, the spline shaft assembly comprises a fork head flange, the fork head flange comprises a first fork head and a mounting flange which are connected, the fork head shaft comprises a second fork head which is connected with the spline shaft and the connecting sleeve, and the second fork head is movably connected with the first fork head.

Preferably, the internal spline of the inner hole of the spline housing body is an involute spline.

Preferably, the positioning locking assembly comprises a first welding flange fixedly arranged on two sides of the outer part of the spline housing body and a second welding flange fixedly arranged on the outer side of the front end of the connecting sleeve, the first welding flange and the second welding flange are consistent in structure, and matched half hoops are respectively arranged on the outer sides of the first welding flange and the second welding flange; a plurality of corresponding first semicircular grooves and second semicircular grooves are respectively arranged on the outer sides of the first welding flange and the second welding flange along the circumference; the half hoop comprises an internal thread side half hoop and a counter bore side half hoop, wherein the ends of the internal thread side half hoop and the counter bore side half hoop are respectively provided with corresponding internal thread holes and counter bores, and each corresponding internal thread hole and counter bore are fixedly connected through a fixing bolt; the inner sides of the half ring on the inner thread side and the half ring on the counter bore side are respectively provided with a plurality of third semicircular grooves corresponding to the first semicircular grooves and the second semicircular grooves on the first welding flange and the second welding flange, each third semicircular groove and each corresponding first semicircular groove and second semicircular groove form a mounting hole, a positioning pin is arranged in each corresponding mounting hole, and locking nuts are respectively arranged on two sides of each positioning pin.

Preferably, a damping sleeve is arranged between the positioning pin and the mounting hole.

Preferably, the cross section of the damping sleeve is in an I shape and is designed as a double-side table.

Preferably, the damping sleeve is a nylon piece.

Preferably, the spline housing body is provided with a plurality of oil holes and is respectively provided with an oil plug, and the connecting sleeve of the fork head shaft is provided with a plurality of exhaust holes and is respectively provided with an exhaust plug.

Compared with the prior art, the multipurpose spacing bidirectional spline cross-type universal coupling provided by the utility model has the advantages that the design is novel, the structure is reasonable and simple, the implementation is easy, the two ends of the inner hole of the spline housing assembly are connected by adopting the bidirectional spline, the various working conditions including vertical installation and the like can be met by arranging the combination of the positioning locking assembly, even under the special working conditions (such as ESP and MCCR) of continuous unidirectional rotation, the tooth parts of the spline can be uniformly distributed on the opposite side tooth surfaces of the two sets of spline, and the spline housing assembly is internally provided with a larger cavity, so that enough glycerol for tooth part lubrication can be added at one time, and oil can be timely supplemented to the spline clearance in the working clearance, thereby ensuring sufficient lubrication; according to the utility model, after the single side of the spline is worn for a period of time, the direction of the spline housing assembly can be exchanged and then the spline housing assembly can be installed and used again, so that the service life of the whole shaft can be greatly prolonged; according to the utility model, if one side of the spline shaft assembly is damaged, one set of spline shaft assembly can be directly replaced for online, so that the overhaul time and the overhaul difficulty are greatly shortened.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic front view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic cross-sectional view of the present utility model;

FIG. 5 is a schematic illustration of the spline housing assembly of the present utility model;

FIG. 6 is a schematic view of a spline shaft assembly according to the present utility model;

FIG. 7 is a schematic view of a fork flange structure according to the present utility model;

FIG. 8 is a schematic view of a fork shaft according to the present utility model;

FIG. 9 is a schematic view of a damping sleeve according to the present utility model;

FIG. 10 is a schematic view of a half-half ring structure with internal thread flanks according to the present utility model;

FIG. 11 is a schematic view of a half-half of a half-ring structure on the counter bore side in the present utility model;

FIG. 12 is a schematic view of another perspective of a half-half of a counterbore side in accordance with the present utility model;

in the figure: 1. a spline housing assembly; 11. a spline housing body; 2. a spline shaft assembly; 21. a fork head flange; 211. a first prong; 212. a mounting flange; 22. a fork head shaft; 221. a second prong; 222. a spline shaft; 223. connecting sleeves; 3. positioning a locking assembly; 31. a first welding flange; 311. a first semicircular groove; 32. a second welding flange; 321. a second semicircular groove; 33. a positioning pin; 34. a lock nut; 35. a damping sleeve; 36. a Harvard hoop; 361. an internally threaded side huff semi-ring; 362. half-ring of the counter bore side; 363. a third semicircular groove; 364. a fixing bolt; 365. an internal threaded hole; 366. and (5) countersinking.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in the specification and claims of the present application, "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are used merely to indicate relative positional relationships, which change when the absolute position of the object to be described changes accordingly. The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

As shown in fig. 1-12, the multipurpose spacing bidirectional spline cross-shaft type universal coupling comprises a spline housing assembly 1 and spline shaft assemblies 2 respectively arranged at two sides of the spline housing assembly 1; the spline housing assembly 1 comprises a spline housing body 11, wherein inner splines are respectively arranged on two sides of an inner hole, and can be set as involute splines; the spline shaft assembly 2 comprises a fork head shaft 22, the fork head shaft 22 comprises a connecting sleeve 223 and a spline shaft 222 axially arranged at the center of the inner side of the connecting sleeve 223 and provided with external splines matched with internal splines of an inner hole of a spline housing body 11, the space between the spline shaft 222 and the connecting sleeve 223 is matched with the wall thickness of the end part of the spline housing body 11, the spline shaft 222 is connected with the inner side of the end part of the spline housing body 11 in a spline manner, the connecting sleeve 223 is sleeved on the outer side of the end part of the spline housing body 11, a positioning locking assembly 3 is arranged on the outer side of the connecting sleeve 223 and the outer side of the spline housing body 11, and the positioning locking assembly 3 is used for quick positioning installation, disassembly, adjustment and locking of the spline shaft assembly 2 on the spline housing assembly 1. In this embodiment, after the spline shaft assemblies 2 are respectively installed at the left end and the right end of the spline housing body 11, a larger space is further provided in the middle of the inner hole of the spline housing body 11, and 2 oil holes can be symmetrically opened at the left end and the right end of the spline housing body and oil plugs are respectively installed at the positions for oil injection or oil drainage; two exhaust holes are symmetrically formed in the connecting sleeve 223 of the fork head shaft 22, and exhaust plugs are respectively arranged for exhausting.

In this embodiment, in order to facilitate connection between the multipurpose limitable bidirectional spline cross-shaft universal coupling and the driving and driven end devices, the spline shaft assembly 2 further includes a fork flange 21, the fork flange 21 includes a first fork 211 and a mounting flange 212 that are connected, the mounting flange 212 is used for connection with the driving and driven end devices, the fork shaft 22 includes a second fork 221 that is connected with a spline shaft 222 and a connecting sleeve 223, and the second fork 221 is movably connected with the first fork 211, so as to meet the requirements of the cross-shaft universal coupling.

In this embodiment, the positioning locking assembly 3 includes a first welding flange 31 welded on two sides of the outside of the spline housing body 11 and a second welding flange 32 fixedly arranged on the outer side of the front end of the connecting sleeve 223, the first welding flange 31 and the second welding flange 32 have identical structures, and the outer sides of the first welding flange 31 and the second welding flange 32 are respectively provided with a matched haverse hoop 36; 8 corresponding first semicircular grooves 311 and second semicircular grooves 321 are respectively arranged on the outer sides of the first welding flange 31 and the second welding flange 32 along the circumference; the haverse hoop 36 comprises an internally threaded side haverse half ring 361 and a counter bore side haverse half ring 362, and corresponding internally threaded holes 365 and counter bores 366 are respectively formed at the ends of the internally threaded side haverse half ring 361 and the counter bore side haverse half ring 362, and each corresponding internally threaded hole 365 and counter bore 366 are fixedly connected through a fixing bolt 364; the inner sides of the female-thread half ring 361 and the counter-bore side half ring 362 are respectively provided with 8 third half grooves 363 corresponding to the first half groove 311 and the second half groove 321 on the first welding flange 31 and the second welding flange 32, each third half groove 363 and each corresponding first half groove 311 and second half groove 321 form a mounting hole, a positioning pin 33 is arranged in each corresponding mounting hole, and locking nuts 34 are respectively arranged on two sides of the positioning pin 33.

In this embodiment, in order to increase the damping and positioning effects of the coupling, a damping sleeve 35 is disposed between the positioning pin 33 and the mounting hole, and the damping sleeve 35 may be a nylon member, and its cross section is in an "i" shape, and is designed as a double-sided table.

When the damper is applied, the nylon damper 35 can be sleeved on two sides of each positioning pin 33, the lock nuts 34 are screwed into threads on two sides of the positioning pins 34 respectively, the spline housing body 11 and the fork shaft 22 are connected and adjusted according to the working length, each positioning pin 33 can be clamped into the corresponding first semicircular groove 311 and the corresponding second semicircular groove 321 on the first welding flange 31 and the second welding flange 32, then the inner thread side half ring 361 of the two pairs of half hoops 36 and the third semicircular groove 363 of the counter bore side half ring 362 are clamped with each positioning pin 33, then the inner thread side half ring 361 of the two half hoops 36 and the counter bore side half ring 362 are locked through the two lock nuts 34, the spline stroke on the side is locked, the spline on the side can bear axial moment in the operation process, the damper can play a role in buffering and damping, and the positioning role can be played for the welding flange and the half hoops by the design of two sides of the damper 35. The utility model can also carry out adaptability adjustment on various working conditions: when the vertical type installation is performed, the shaft can be contracted to the minimum distance through the spline housing assembly and the spline shaft assembly (the positioning locking assemblies on two sides are all installed), the vertical type installation can be easily performed by hoisting on the line, and the positioning locking mechanism on one side can be used after the installation is completed; the installation step is similar to the vertical installation step under the conventional working condition, and the length of the shaft can be adjusted by adjusting the length of the locating pin (one shaft is multipurpose) under the occasions with different requirements on the length of the shaft and the same spline stroke; in addition, the shaft can be used under the working condition without stretching, and after the working length is adjusted, the positioning locking assemblies on two sides can be completely installed. In addition, the utility model also has the quick-change and quick-adjustment functions, the unique damping sleeve design can be used as a positioning sleeve, the length of the shaft can be quickly adjusted by matching positioning pins with various specifications, the positioning pins and the like in the positioning locking assembly can be taken out after only two locking bolts are loosened, and then the spline shaft assembly can be quickly assembled and disassembled, so that the dilemma that the bolts cannot be disassembled due to original corrosion is avoided.

Claims

1. The multipurpose spacing bidirectional spline cross-shaft type universal coupling is characterized by comprising a spline housing assembly (1) and spline shaft assemblies (2) which are respectively arranged at two sides of the spline housing assembly (1); the spline housing assembly (1) comprises a spline housing body (11) with inner splines respectively arranged at two sides of an inner hole; the spline shaft assembly (2) comprises a fork shaft (22), the fork shaft (22) comprises a connecting sleeve (223) and a spline shaft (222) axially arranged at the center of the inner side of the connecting sleeve (223) and provided with external splines matched with internal splines of an inner hole of a spline housing body (11), the distance between the spline shaft (222) and the connecting sleeve (223) is matched with the wall thickness of the end part of the spline housing body (11), the spline shaft (222) is in spline connection with the inner side of the end part of the spline housing body (11), the connecting sleeve (223) is sleeved on the outer side of the end part of the spline housing body (11), and the outer side of the connecting sleeve (223) and the outer side of the spline housing body (11) are provided with positioning locking assemblies (3).

2. The multipurpose limitable two-way spline universal joint as claimed in claim 1, wherein the spline shaft assembly (2) comprises a fork head flange (21), the fork head flange (21) comprises a first fork head (211) and a mounting flange (212) which are connected, the fork head shaft (22) comprises a second fork head (221) which is connected with a spline shaft (222) and a connecting sleeve (223), and the second fork head (221) is movably connected with the first fork head (211).

3. The multipurpose spacing two-way spline cross-type universal joint according to claim 1 or 2, wherein the internal spline of the inner hole of the spline housing body (11) is an involute spline.

4. The multipurpose spacing bidirectional spline cross-shaft type universal coupling according to claim 3, wherein the positioning locking assembly (3) comprises a first welding flange (31) fixedly arranged on two sides of the outer part of the spline housing body (11) and a second welding flange (32) fixedly arranged on the outer side of the front end of the connecting sleeve (223), the first welding flange (31) and the second welding flange (32) are consistent in structure, and matched half hoops (36) are respectively arranged on the outer sides of the first welding flange and the second welding flange; a plurality of corresponding first semicircular grooves (311) and second semicircular grooves (321) are respectively arranged on the outer sides of the first welding flange (31) and the second welding flange (32) along the circumference; the half hoop (36) comprises an internal thread side half hoop (361) and a counter bore side half hoop (362), the ends of the internal thread side half hoop (361) and the counter bore side half hoop (362) are respectively provided with corresponding internal thread holes (365) and counter bores (366), and each corresponding internal thread hole (365) and counter bore (366) are fixedly connected through a fixing bolt (364); the inner sides of the female-thread side half ring (361) and the counter-bore side half ring (362) are respectively provided with a plurality of third half grooves (363) corresponding to the first half grooves (311) and the second half grooves (321) on the first welding flange (31) and the second welding flange (32), each third half groove (363) respectively forms a mounting hole with each corresponding first half groove (311) and second half groove (321), a positioning pin (33) is arranged in each corresponding mounting hole, and locking nuts (34) are respectively arranged on two sides of the positioning pin (33).

5. The multipurpose spacing two-way spline cross-type universal joint of claim 4, wherein a shock absorbing sleeve (35) is provided between said locating pin (33) and said mounting hole.

6. The multipurpose spacing two-way spline cross-type universal joint of claim 5, wherein said damping sleeve (35) is "i" shaped in cross section, double sided bench design.

7. A multipurpose spacing bi-directional spline cross-type universal joint as claimed in claim 5 or 6, wherein said damping sleeve (35) is a nylon member.

8. The multipurpose limitable bidirectional spline cross-type universal joint as claimed in claim 5 or 6, wherein the spline housing body (11) is provided with a plurality of oil holes and oil plugs respectively, and the connecting sleeve (223) of the fork head shaft (22) is provided with a plurality of exhaust holes and exhaust plugs respectively.