Universal rotating shaft structure

Abstract

The utility model relates to the technical field of universal rotating shafts, and provides a universal rotating shaft structure which is characterized in that when a first yoke frame, a first rotating shaft and a shaft seat are connected, the first rotating shaft can be inserted from a first limiting groove in a first bearing along a first limiting block; first rotating shafts are rotated to enable first threaded grooves in the outer surfaces of the first rotating shafts to be screwed into threaded rings of the shaft seats, and under the action of first bearings, the first yoke frames do not rotate along with the first rotating shafts in the screwing process, and after the two sets of first rotating shafts are in threaded connection with the shaft seats, the first yoke frames cannot rotate; similarly, the threaded connection work of the two sides of the second yoke frame and the shaft seat can be completed subsequently, through the design, the first yoke frame, the second yoke frame and the limiting assembly are firmly connected, and meanwhile the first yoke frame, the second yoke frame and the limiting assembly can be rapidly disassembled and assembled in the later period so as to replace a single seriously-abraded part.

Description

Technical Field

[0001] The utility model relates to the technical field of universal rotating shafts, and in particular to a universal rotating shaft structure. Background Art

[0002] The universal joint is a device used to transmit power between two shafts whose relative positions are constantly changing during operation. When the universal joint shaft is damaged, how to quickly disassemble and replace it is a problem that needs to be solved urgently.

[0003] After searching, the announcement number CN216131281U discloses a cross universal rotating shaft with smooth steering, including a cross member, the left and right sides of the cross member are respectively provided with a first yoke and a second yoke, the outer end face of the first yoke is fixedly connected with a mounting shaft, the outer end face of the second yoke is fixedly connected with a sleeve, the end face of the sleeve is provided with a mounting groove, the inner surface of the mounting groove is fixedly sleeved with a bearing, and the inner surface of the bearing is fixedly sleeved with a mounting shaft. The cross universal rotating shaft with smooth steering is provided with an oil inlet hole on the top surface of the sleeve, and an oil sleeve is fixedly installed on the top surface of the sleeve, so that the top surface of the oil sleeve is threadedly sleeved with a sealing plug, and a side groove is provided on the surface of the connecting shaft. During the rotation of the connecting shaft, when the side groove is connected with the oil inlet hole, the lubricating oil flows into the mounting groove to lubricate the bearing, and the lubricating oil is fed in small amounts and multiple times to avoid leakage due to excessive lubricating oil, and the connecting shaft is smoothly steered, and the use effect is good.

[0004] The above-mentioned smooth-steering cross universal joint shaft adopts a fixed bearing sleeve between the cross-joint and the yoke to complete the rotation after the two are connected. However, the problem exposed by this design is that when the yoke or the cross-joint is severely worn and cannot be used normally, this design cannot dismantle the entire structure and replace the corresponding severely worn parts separately, which makes the subsequent use and maintenance costs high. Utility Model Content

[0005] The utility model proposes a universal joint shaft structure, which solves the problem in the prior art that when the yoke or the cross-piece is severely worn and cannot be used normally, the design cannot dismantle the entire structure alone and replace the corresponding severely worn parts separately, which makes the subsequent use and maintenance costs high.

[0006] The technical solution of the utility model is as follows: a universal rotating shaft structure, including a first yoke and a second yoke, a sleeve fixedly connected to the side of the first yoke, a connecting shaft installed in the sleeve, first mounting parts are symmetrically arranged in slots penetrating on both sides of the first yoke, the first mounting part includes a first bearing for rotation and a first rotating shaft for limited installation, a mounting shaft is fixedly connected to the side of the second yoke, second mounting parts are symmetrically arranged in slots penetrating on both sides of the second yoke, the second mounting part includes a second bearing for rotation and a second rotating shaft for limited installation, a limiting assembly is arranged in the middle of the first yoke and the second yoke, the limiting assembly includes a shaft seat for installation with the first rotating shaft and the second rotating shaft, and the limiting assembly also includes threaded rings opened on the four sides of the shaft seat.

[0007] Preferably, the first bearing outer ring is fixedly connected to the inner wall of the slot passing through the side surface of the first yoke.

[0008] Preferably, the first mounting member further includes a first limiting groove, and the first limiting groove is annularly disposed on the inner ring of the first bearing.

[0009] Preferably, the first mounting member also includes a first limit block, which is fixedly connected to the outside of the first rotating shaft in a ring shape, and the first limit block matches the first limit groove. The first mounting member also includes a first thread groove, and the first thread groove is opened on one side of the surface of the first rotating shaft.

[0010] Preferably, the second bearing outer ring is fixedly connected to the through groove on the side of the second yoke.

[0011] Preferably, the second mounting member further includes a second limiting groove, and the second limiting groove is annularly disposed on the inner ring of the second bearing.

[0012] Preferably, the second mounting member also includes a second limit block, which is fixedly connected to the outside of the second rotating shaft in a ring shape, and the second limit block matches the second limit groove. The second mounting member also includes a second thread groove, and the second thread groove is opened on one side of the second rotating shaft surface.

[0013] Preferably, the first thread groove and the second thread groove both match the thread ring.

[0014] The beneficial effects of the utility model are:

[0015] The first mounting component body of the utility model is composed of a first bearing and a first rotating shaft. When the first yoke, the first rotating shaft and the axle seat are connected, the first rotating shaft can be inserted from the first limiting groove in the first bearing along the first limiting block, and the first rotating shaft is rotated so that the first thread groove on the outer surface of the first rotating shaft is screwed into the thread ring of the axle seat. Under the action of the first bearing, the first rotating shaft will not rotate during the screwing process. After the two groups of first rotating shafts are threadedly connected to the axle seat, the threaded connection work with the axle seat on both sides of the second yoke can be completed similarly. This design not only makes the connection between the first yoke, the second yoke and the limiting assembly firm, but also facilitates the rapid disassembly and assembly of the three at a later stage to replace a single severely worn component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall device of the utility model;

[0018] Figure 2 It is a schematic diagram of the first yoke and the first mounting member of the utility model;

[0019] Figure 3 This is a schematic diagram of the second yoke and the second bearing of the utility model;

[0020] Figure 4 It is a schematic diagram of the limit assembly of the utility model;

[0021] In the figure: 1. first yoke; 11. sleeve; 12. connecting shaft; 2. first mounting member; 21. first bearing; 211. first limiting groove; 22. first rotating shaft; 221. first limiting block; 222. first threaded groove; 3. second yoke; 31. mounting shaft; 4. second mounting member; 41. second bearing; 411. second limiting groove; 42. second rotating shaft; 421. second limiting block; 422. second threaded groove; 5. limiting assembly; 51. shaft seat; 511. threaded ring. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1The utility model provides a technical solution: a universal rotating shaft structure, including a first yoke 1 and a second yoke 3, a sleeve 11 is fixedly connected to the side of the first yoke 1, a connecting shaft 12 is installed in the sleeve 11, a first mounting member 2 is symmetrically arranged in the slot on both sides of the first yoke 1, the first mounting member 2 includes a first bearing 21 for rotation and a first rotating shaft 22 for position limiting installation, a mounting shaft 31 is fixedly connected to the side of the second yoke 3, a second mounting member 4 is symmetrically arranged in the slot on both sides of the second yoke 3, and the second mounting member 4 includes a second bearing 21 for rotation A bearing 41 and a second rotating shaft 42 for limited installation, a limited assembly 5 is arranged in the middle of the first yoke 1 and the second yoke 3, the limited assembly 5 includes a shaft seat 51 for installation with the first rotating shaft 22 and the second rotating shaft 42, and the limited assembly 5 also includes threaded rings 511 opened on the four sides of the shaft seat 51, which solves the problem in the prior art that when the yoke or the cross-piece is severely worn and cannot be used normally, the design cannot dismantle the entire structure alone and replace the corresponding severely worn parts separately, which makes the subsequent use and maintenance costs high.

[0024] See also Figure 2 and Figure 4 The outer ring of the first bearing 21 is fixedly connected to the inner wall of the slot that penetrates the side of the first yoke 1. The first mounting member 2 also includes a first limiting groove 211, which is annularly arranged on the inner ring of the first bearing 21. The first mounting member 2 also includes a first limiting block 221, which is annularly fixedly connected to the outer side of the first rotating shaft 22. The first limiting block 221 matches the first limiting groove 211. The first mounting member 2 also includes a first thread groove 222, which is arranged on one side of the surface of the first rotating shaft 22. Through this design, the first rotating shaft 22 can be inserted into the first bearing 21 and threadedly connected with the shaft seat 51.

[0025] See also Figure 2 and Figure 4 The outer ring of the second bearing 41 is fixedly connected to the through groove on the side of the second yoke 3. The second mounting member 4 also includes a second limiting groove 411, which is annularly opened on the inner ring of the second bearing 41. The second mounting member 4 also includes a second limiting block 421, which is annularly fixedly connected to the outside of the second rotating shaft 42. The second limiting block 421 matches the second limiting groove 411. The second mounting member 4 also includes a second threaded groove 422, which is opened on one side of the surface of the second rotating shaft 42. Through this design, the second rotating shaft 42 can be inserted into the second bearing 41 and threadedly connected with the shaft seat 51.

[0026] See also Figure 2-Figure 4 The first thread groove 222 and the second thread groove 422 both match the thread ring 511 .

[0027] The working principle and use process of the utility model are as follows:

[0028] First, insert the first rotating shaft 22 from the first limiting groove 211 in the first bearing 21 along the first limiting block 221, and rotate the first rotating shaft 22 so that the first thread groove 222 on the outer surface of the first rotating shaft 22 is screwed into the thread ring 511 of the shaft seat 51. Similarly, insert the second rotating shaft 42 from the second limiting groove 411 in the second bearing 41 along the second limiting block 421, and rotate the second rotating shaft 42 so that the second thread groove 422 on the outer surface of the second rotating shaft 42 is screwed into the thread ring 511 of the shaft seat 51. The above completes the threaded fixed connection between the first yoke 1, the second yoke 3 and the second mounting member 4. Similarly, the first rotating shaft 22 and the second rotating shaft 42 can be reversed in turn to complete the removal of the three. This design not only makes the connection between the first yoke 1, the second yoke 3 and the limiting assembly 5 firm, but also facilitates the rapid disassembly and assembly of the three in the later stage to replace a single severely worn component.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal shaft structure, comprising a first yoke (1) and a second yoke (3), characterized in that: The first yoke (1) is fixedly connected to a sleeve (11) on the side, and a connecting shaft (12) is installed in the sleeve (11). First mounting members (2) are symmetrically arranged in slots on both sides of the first yoke (1). The first mounting member (2) includes a first bearing (21) for rotation and a first rotating shaft (22) for position limiting installation. The second yoke (3) is fixedly connected to a mounting shaft (31) on the side. Second mounting members (4) are symmetrically arranged in slots on both sides of the second yoke (3). The second mounting member (4) includes a second bearing (41) for rotation and a second rotating shaft (42) for position limiting installation. A position limiting assembly (5) is arranged in the middle of the first yoke (1) and the second yoke (3). The position limiting assembly (5) includes a shaft seat (51) for installation with the first rotating shaft (22) and the second rotating shaft (42). The position limiting assembly (5) also includes threaded rings (511) arranged on four sides of the shaft seat (51).

2. A universal rotating shaft structure according to claim 1, characterized in that: The outer ring of the first bearing (21) is fixedly connected to the inner wall of the slot passing through the side of the first yoke (1).

3. The universal joint shaft structure according to claim 1, characterized in that: The first mounting member (2) further comprises a first limiting groove (211), wherein the first limiting groove (211) is annularly disposed on the inner ring of the first bearing (21).

4. The universal rotating shaft structure according to claim 1, characterized in that: The first mounting member (2) further comprises a first limiting block (221), the first limiting block (221) being annularly fixedly connected to the outside of the first rotating shaft (22), the first limiting block (221) matching the first limiting groove (211), and the first mounting member (2) further comprises a first thread groove (222), the first thread groove (222) being arranged on one side of the surface of the first rotating shaft (22).

5. The universal joint shaft structure according to claim 1, characterized in that: The outer ring of the second bearing (41) is fixedly connected to the inner wall of the slot passing through the side of the second yoke (3).

6. The universal joint shaft structure according to claim 1, characterized in that: The second mounting member (4) further comprises a second limiting groove (411), wherein the second limiting groove (411) is annularly disposed on the inner ring of the second bearing (41).

7. The universal joint shaft structure according to claim 1, characterized in that: The second mounting member (4) further comprises a second limiting block (421), the second limiting block (421) being annularly fixedly connected to the outside of the second rotating shaft (42), the second limiting block (421) matching the second limiting groove (411), and the second mounting member (4) further comprises a second thread groove (422), the second thread groove (422) being arranged on one side of the surface of the second rotating shaft (42).

8. The universal joint shaft structure according to claim 4, characterized in that: The first thread groove (222) and the second thread groove (422) both match the thread ring (511).

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