Driving shaft assembly convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of driving shaft assemblies, and discloses a driving shaft assembly convenient to disassemble and assemble, a plurality of limiting blocks are respectively installed in a plurality of grooves, a plurality of guide grooves are formed in the other end of a shaft sleeve, and ejector blocks are installed in the guide grooves. The outer side of the external thread section at the other end of the shaft sleeve is in threaded connection with a second limiting nut; the shaft sleeve can be fixed to the outer side of the driving shaft body through the first limiting nut and the second limiting nut, the limiting block is placed in the groove and the limiting groove, the position of the ball bearing on the shaft sleeve can be limited, meanwhile, the second limiting nut abuts against the ejector block to move in the guide groove, and therefore the ball bearing can be fixed to the outer side of the driving shaft body. According to the driving shaft, the inner ring of the bearing can be fixed by the ejector block, so that the ball bearing is fixed, an auxiliary knocking mode is not needed for mounting, the strength of the driving shaft body is not influenced, and meanwhile, the mounting convenience of the driving shaft body is improved.

Description

Technical Field

[0001] This utility model relates to the field of drive shaft assembly technology, specifically a drive shaft assembly that is easy to assemble and disassemble. Background Technology

[0002] A drive shaft is a type of shaft transmission component. In traditional technology, the drive shaft and the inner ring of the bearing are connected by an interference fit. Installing the drive shaft into the bearing inner ring requires auxiliary hammering, a laborious process that can easily damage both the bearing and the drive shaft. Furthermore, subsequent disassembly is extremely inconvenient.

[0003] The patent with authorization announcement number CN218207519U discloses a drive shaft assembly that is easy to disassemble and assemble. The drive shaft assembly is composed of a drive shaft body, a ball bearing, a limiting member, and fasteners. The drive shaft body has threaded holes, mounting holes, and mounting grooves, and the inner ring of the ball bearing has a limiting groove. The fasteners are composed of a screw, a connecting rod, a support body, and a magnet. The limiting member is pressed against the limiting groove by the inclined surface of the support body, thereby positioning the inner ring of the bearing with the drive shaft body. Compared with the traditional interference fit connection method, its disassembly and assembly are more convenient.

[0004] The existing technical solutions mentioned above have the following drawbacks: Although the above patent can easily complete the installation of the drive shaft and the inner ring of the bearing, the installation groove on the drive shaft will reduce the strength of the drive shaft and thus affect the service life of the drive shaft. Therefore, a drive shaft assembly that is easy to disassemble and assemble is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a drive shaft assembly that is easy to assemble and disassemble, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drive shaft assembly that is easy to assemble and disassemble, comprising...

[0007] Drive shaft body;

[0008] The mounting assembly is disposed on the outside of the drive shaft body and is equipped with a ball bearing;

[0009] The mounting assembly comprises a shaft sleeve, a first limiting nut and a plurality of limiting blocks, the shaft sleeve is movably sleeved on the outer side of the driving shaft body, both ends of the shaft sleeve are provided with outer threaded sections, the first limiting nut is threadedly connected to the outer side of the outer threaded section of one end of the shaft sleeve, a plurality of grooves are formed in the outer side of one end of the shaft sleeve, the plurality of limiting blocks are respectively arranged in the plurality of grooves, a plurality of guide grooves are formed in the other end of the shaft sleeve, and a plurality of top blocks are arranged in the plurality of guide grooves.

[0010] Preferably, the ball bearing comprises a bearing inner ring, balls and a bearing outer ring, the bearing inner ring is sleeved on the outer side of the shaft sleeve, the bearing outer ring is arranged on the outer side of the bearing inner ring, the balls are arranged on the outer side of the bearing inner ring and the inner side of the bearing outer ring, and a plurality of limiting grooves are formed in the inner side of one end of the bearing inner ring.

[0011] Preferably, the limiting blocks are arranged in the limiting grooves, and the first limiting nut abuts against one end of the bearing inner ring.

[0012] Preferably, a notch is formed in the shaft sleeve.

[0013] Preferably, a first limiting stud is threadedly connected to the outer side of the first limiting nut, a second limiting stud is threadedly connected to the outer side of the second limiting nut, and one end of each of the first limiting stud and the second limiting stud is arranged in the notch and abuts against the outer side of the driving shaft body.

[0014] Preferably, one end of the top block abuts against the inner side of the bearing inner ring, and the second limiting nut abuts against the other end of the bearing inner ring.

[0015] Preferably, the top block is provided with an inclined surface on one side, and the inclined surface abuts against the inner side of the bearing inner ring.

[0016] Compared with the prior art, the above technical scheme has the following technical effects: the first limiting nut and the second limiting nut can fix the shaft sleeve on the outer side of the driving shaft body, the limiting blocks are arranged in the grooves and the limiting grooves, the position of the ball bearing on the shaft sleeve can be limited, the second limiting nut abuts against the top block to move in the guide groove, the top block can fix the bearing inner ring, the ball bearing is fixed without the need of auxiliary knocking, the strength of the driving shaft body is not affected, and the convenience of installing the driving shaft body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 Structure diagram of the present application;

[0019] Figure 2 Structure diagram of the present application;

[0020] Figure 3 Structure diagram of the present application;

[0021] Figure 4 Structure diagram of the present application;

[0022] Figure 5 Structure diagram of the present application.

[0023] Explanation of reference numerals: 1, drive shaft body; 2, shaft sleeve; 3, notch; 4, external thread section; 5, first limiting nut; 6, groove; 7, limiting block; 8, bearing inner ring; 9, limiting groove; 10, guide groove; 11, top block; 12, second limiting nut; 13, first limiting stud; 14, second limiting stud; 15, ball; 16, bearing outer ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and are not used to limit the conditions that can be implemented by the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0026] EMBODIMENT

[0027] Please refer to Figures 1-5The utility model provides a kind of technical scheme: a driving shaft assembly convenient to dismount, including driving shaft body 1;Mounting assembly is set to the outside of driving shaft body 1, and mounting assembly is provided with ball bearing.

[0028] By setting mounting assembly, it is not necessary to install by the mode of auxiliary knocking, and the strength of driving shaft body 1 is not affected, and the convenience of driving shaft body 1 installation is improved simultaneously;Mounting assembly includes shaft sleeve 2, first limit nut 5 and several limit blocks 7, shaft sleeve 2 is movably sleeved on the outside of driving shaft body 1, both ends of shaft sleeve 2 are provided with outer thread section 4, first limit nut 5 is connected to the outside of one end outer thread section 4 of shaft sleeve 2 by thread, the outside one end of shaft sleeve 2 is provided with several grooves 6, and several limit blocks 7 are respectively mounted in the inside of several grooves 6, the other end of shaft sleeve 2 is provided with several guide grooves 10, and several guide grooves 10 are provided with top block 11 in the inside, and the outside of the other end outer thread section 4 of shaft sleeve 2 is connected with second limit nut 12 by thread;By first limit nut 5 and second limit nut 12, shaft sleeve 2 can be fixed on the outside of driving shaft body 1, and limit block 7 is placed in the inside of groove 6 and limit groove 9, the position of ball bearing on the shaft sleeve 2 can be limited, and then the fixing of ball bearing is completed by second limit nut 12 being in contact with top block 11 moving in the inside of guide groove 10.

[0029] Ball bearing includes bearing inner ring 8, ball 15 and bearing outer ring 16, bearing inner ring 8 is sleeved on the outside of shaft sleeve 2, bearing outer ring 16 is arranged on the outside of bearing inner ring 8, ball 15 is mounted on the outside of bearing inner ring 8 and the inside of bearing outer ring 16, and the inside one end of bearing inner ring 8 is provided with several limit grooves 9;By placing limit block 7 in the inside of groove 6 and limit groove 9, first limit nut 5 is connected to the outside of one end outer thread section 4 by thread, so that first limit nut 5 is in contact with one end of limit block 7, and the position of limit block 7 is fixed.

[0030] Limit block 7 is located in the inside of limit groove 9, first limit nut 5 is in contact with one end of bearing inner ring 8, one end of top block 11 is located in the inside of bearing inner ring 8, second limit nut 12 is in contact with the other end of bearing inner ring 8, one side of top block 11 is provided with inclined plane, and the inclined plane is in contact with the inside of bearing inner ring 8;By placing limit block 7 in the inside of groove 6, first limit nut 5 is connected to the outside of one end outer thread section 4 by thread, so that first limit nut 5 is in contact with one end of limit block 7, and the position of limit block 7 is fixed, the position of ball bearing can be limited, at this time, top block 11 can be inserted into the inside of guide groove 10, and then second limit nut 12 is mounted on the outside of the other end outer thread section 4 of shaft sleeve 2, and second limit nut 12 is in contact with top block 11 moving in the inside of guide groove 10, so that top block 11 can limit bearing inner ring 8, and then the fixing of ball bearing is completed.

[0031] The shaft sleeve 2 is provided with a notch 3, the outer side of the first limiting nut 5 is threadedly connected with a first limiting stud 13, the outer side of the second limiting nut 12 is threadedly connected with a second limiting stud 14, one end of the first limiting stud 13 and the second limiting stud 14 is located inside the notch 3 and abuts against the outer side of the driving shaft body 1; through the abutting of the first limiting stud 13 and the second limiting stud 14 on the outer side of the driving shaft body 1, the fixing of the first limiting nut 5 and the second limiting nut 12 can be completed, the displacement of the first limiting nut 5 and the second limiting nut 12 is prevented, and the stability of the ball bearing installation is improved.

[0032] The working principle or structural principle is that when the ball bearing is installed, the first limiting nut 5 is sleeved on the outer side of the driving shaft body 1, then the shaft sleeve 2 is sleeved on the outer side of the driving shaft body 1, and then the ball bearing is sleeved on the outer side of the shaft sleeve 2, the limiting block 7 is placed in the recess 6 and the limiting groove 9, the first limiting nut 5 is threadedly connected on the outer side of the one-end outer thread segment 4, so that the first limiting nut 5 abuts against one end of the limiting block 7, the position of the limiting block 7 is fixed, and the limiting block 7 is located in the limiting groove 9, so that the position of the ball bearing is limited, at this time, the top block 11 is inserted into the guide groove 10, then the second limiting nut 12 is installed on the outer side of the outer thread segment 4 at the other end of the shaft sleeve 2, the second limiting nut 12 abuts against the top block 11 to move in the guide groove 10, so that the top block 11 can limit the bearing inner ring 8, and the fixing of the ball bearing is completed, the auxiliary knocking is not needed for installation, the strength of the driving shaft body 1 is not affected, and the convenience of the driving shaft body 1 installation is improved.

[0033] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combinations or combinations are not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. A drive shaft assembly that is easy to assemble and disassemble, characterized in that: include Drive shaft body (1); Mounting assembly, the mounting assembly being disposed on the outside of the drive shaft body (1), the mounting assembly being provided with ball bearings; The mounting assembly includes a bushing (2), a first limiting nut (5), and several limiting blocks (7). The bushing (2) is movably sleeved on the outside of the drive shaft body (1). Both ends of the bushing (2) are provided with external thread sections (4). The first limiting nut (5) is threaded to the outside of one end of the external thread section (4) of the bushing (2). Several grooves (6) are opened on one side of the bushing (2). Several limiting blocks (7) are respectively installed inside the several grooves (6). Several guide grooves (10) are opened on the other end of the bushing (2). Top blocks (11) are installed inside the several guide grooves (10). The outside of the other end of the bushing (2) is threaded to a second limiting nut (12).

2. The drive shaft assembly that is easy to assemble and disassemble according to claim 1, characterized in that: The ball bearing includes an inner ring (8), balls (15) and an outer ring (16). The inner ring (8) is fitted onto the outside of the bushing (2). The outer ring (16) is located on the outside of the inner ring (8). The balls (15) are installed on the outside of the inner ring (8) and the inside of the outer ring (16). A plurality of limiting grooves (9) are provided on one end of the inner side of the inner ring (8).

3. The drive shaft assembly that is easy to assemble and disassemble according to claim 2, characterized in that: The limiting block (7) is located inside the limiting groove (9), and the first limiting nut (5) abuts against one end of the bearing inner ring (8).

4. The drive shaft assembly that is easy to assemble and disassemble according to claim 1, characterized in that: The bushing (2) has a notch (3).

5. A drive shaft assembly that is easy to assemble and disassemble according to claim 4, characterized in that: The outer side of the first limiting nut (5) is connected to the first limiting stud (13) by a thread, and the outer side of the second limiting nut (12) is connected to the second limiting stud (14) by a thread. One end of the first limiting stud (13) and the second limiting stud (14) are both located inside the notch (3) and abut against the outer side of the drive shaft body (1).

6. A drive shaft assembly that is easy to assemble and disassemble according to claim 2, characterized in that: One end of the top block (11) is located inside the inner ring (8) of the bearing, and the second limiting nut (12) abuts against the other end of the inner ring (8).

7. A drive shaft assembly that is easy to assemble and disassemble according to claim 2, characterized in that: One side of the top block (11) is provided with an inclined surface, which abuts against the inner side of the bearing inner ring (8).

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