A bolt connection structure
By setting specific through holes and light holes on the bearing seat of the gear box, and using the combined structure of double-headed studs and internal nuts, the convenient installation of the bolted connection of the gear box is achieved, solving the problems of connection difficulty and design limitations in the prior art.
Patent Information
- Application Number
- CN202421585603.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The existing gearbox bolted coupling structures are difficult during processing and installation, especially when space is limited, and the structure limits the design and layout of the gearbox.
A bolted coupling structure is adopted, including a first bearing seat, a second bearing seat, a double-head stud, an inner nut and an outer nut. By providing a first through hole and a light hole on the first bearing seat and a second through hole on the second bearing seat, the double-head stud passes through the through hole, the inner nut is threaded to the double-head stud, and the outer nut is threaded to the double-head stud, the tightening of the bearing seat is achieved.
It reduces the difficulty of connection between bearing seats, improves installation convenience, avoids space limitations, and widens the design and structural layout range of the gearbox.
Smart Images
Figure CN222702524U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of gear box connection, and in particular to a bolt connection structure. Background Art
[0002] Most gearboxes require bolts to connect the upper and lower (or left and right) housings, where the main bolts bear the main force and connect the bearing seats on the housing together. There are two main types of existing bolt connection structures. One is that one of the bearing seats has threads and the other bearing seat has a through hole. One end of the bolt is screwed onto the bearing seat and the other end is fixed with a nut; the other is that both housing bearing seats have through holes and are tightened with nuts at both ends.
[0003] The existing structure mainly has the following disadvantages: 1. It is necessary to process threaded holes on the box body. If the box body is large and the threads are also large, thread processing is difficult; 2. When both ends are connected by nut structures, the difficulty of bolt installation will increase if there is space limitation; 3. The existing structure only facilitates the parallelism between the bearing seat mating surface and the surface of the mounting nut, which limits the design and structural layout of the gearbox. Utility Model Content
[0004] In order to reduce the difficulty of connecting between bearing seats, make the installation less susceptible to space restrictions, and make the installation more convenient, the present application provides a bolt connection structure.
[0005] A bolt connection structure provided in this application adopts the following technical solution:
[0006] A bolt connection structure comprises a first bearing seat, a second bearing seat, a stud, an inner nut and an outer nut;
[0007] The first bearing seat is provided with a first through hole and a light hole, the first through hole and the light hole are connected, and the axis of the first through hole is perpendicular to the axis of the light hole; the second bearing seat is provided with a second through hole, the second through hole is coaxially arranged with the first through hole and connected to each other;
[0008] The stud passes through the first through hole and the second through hole, one end of the stud is located in the light hole, and the other end is threadedly connected to the outer nut; the inner nut is located in the light hole and threadedly connected to the stud.
[0009] By adopting the above technical solution, the inner nut is placed in the specified position in the light hole, one end of the stud is screwed into the inner nut, and the other end is fastened to the first bearing seat and the second bearing seat through the outer nut to achieve the connection purpose, reduce the difficulty of connecting the bearing seats, make the installation less affected by space restrictions, and make the installation more convenient.
[0010] Optionally, the inner nut is a cylindrical nut, and the outer circle of the cylindrical nut is clearance-fitted with the light hole.
[0011] By adopting the above technical solution, the positioning and installation of the inner nut are facilitated.
[0012] Optionally, a threaded hole is provided on the side wall of the inner nut.
[0013] By adopting the above technical solution, it is convenient to disassemble and assemble the internal nut by using a tool in cooperation with the threaded hole.
[0014] Optionally, the axis of the first bearing seat and the second bearing seat is a first axis, the axis of the first through hole and the second through hole is a second axis, and the first axis and the second axis are parallel to or intersect with each other.
[0015] Optionally, the surfaces of the first bearing seat and the second bearing seat that are away from each other are parallel to or intersect with each other.
[0016] By adopting the above technical solution, the surfaces of the first bearing seat and the second bearing seat can be parallel surfaces or non-parallel surfaces; the first through hole and the second through hole can be inclined or non-inclined, and the connection form can be selected according to actual design needs, thereby expanding the design and structural layout range of the gearbox.
[0017] Optionally, a washer is provided at one end of the second bearing seat away from the first bearing seat, and the washer is located between the second bearing seat and the outer nut.
[0018] By adopting the above technical solution, the end of the second bearing seat can be protected and wear can be reduced.
[0019] In summary, the present application includes at least one of the following beneficial technical effects:
[0020] 1. Place the inner nut in the specified position of the light hole, screw one end of the stud into the inner nut, and fasten the first bearing seat and the second bearing seat with the outer nut at the other end to achieve the connection purpose, reduce the difficulty of connecting the bearing seats, make the installation less restricted by space, and make the installation more convenient;
[0021] 2. The threaded hole is set to facilitate the disassembly and assembly of the internal nut by using tools to cooperate with the threaded hole;
[0022] 3. The surfaces of the first bearing seat and the second bearing seat can be parallel or non-parallel; the first through hole and the second through hole can be inclined or non-inclined. The connection form can be selected according to actual design needs to expand the design and structural layout range of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1It is a schematic diagram of the entire interior of the first connection form of the bolt connection structure.
[0024] Figure 2 It is a structural schematic diagram used to show the threaded hole in the embodiment of the present application.
[0025] Figure 3 It is a structural schematic diagram of the second connection form of a bolt connection structure in an embodiment of the present application.
[0026] Figure 4 It is a structural schematic diagram of the third connection form of a bolt connection structure in an embodiment of the present application.
[0027] Explanation of the accompanying drawings: 1. inner nut; 11. threaded hole; 2. first bearing seat; 21. first through hole; 22. light hole; 3. stud; 4. second bearing seat; 41. second through hole; 5. washer; 6. outer nut. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-4 This application is described in further detail.
[0029] Example 1
[0030] The present application embodiment discloses a bolt connection structure. Figure 1-2 The bolt connection structure includes a bolt connection structure, including a first bearing seat 2, a second bearing seat 4, a stud 3, an inner nut 1 and an outer nut 6. The first bearing seat 2 is provided with a first through hole 21 and a light hole 22, the first through hole 21 and the light hole 22 are connected, and the axis of the first through hole 21 is perpendicular to the axis of the light hole 22; the second bearing seat 4 is provided with a second through hole 41, the second through hole 41 is coaxially arranged with the first through hole 21 and connected with each other. The stud 3 passes through the first through hole 21 and the second through hole 41, one end of the stud 3 is located in the light hole 22, and the other end is threadedly connected with the outer nut 6; the inner nut 1 is located in the light hole 22 and is threadedly connected with the stud 3.
[0031] Place the inner nut 1 into the specified position in the light hole 22, screw one end of the stud 3 into the inner nut 1, and fasten the first bearing seat 2 and the second bearing seat 4 with the other end through the outer nut 6 to achieve the connection purpose, reduce the difficulty of connecting the bearing seats, make the installation less affected by space restrictions, and make the installation more convenient.
[0032] Reference Figure 1-2The inner nut 1 is a cylindrical nut, and the outer circle of the cylindrical nut is clearance-matched with the light hole 22, which is convenient for positioning and installation of the inner nut 1. A threaded hole 11 is provided on the side wall of the inner nut 1, which is convenient for disassembly and assembly of the inner nut 1 with the help of tools that cooperate with the threaded hole 11. A washer 5 is provided at one end of the second bearing seat 4 away from the first bearing seat 2. The washer 5 is located between the second bearing seat 4 and the outer nut 6, which can protect the end of the second bearing seat 4 and reduce wear.
[0033] Reference Figure 2-4 , the axis of the first bearing seat 2 and the second bearing seat 4 is the first axis, the axis of the first through hole 21 and the second through hole 41 is the second axis, and the first axis and the second axis are parallel to or intersecting with each other. The sides of the first bearing seat 2 and the second bearing seat 4 that are away from each other are parallel to or intersecting with each other. The surfaces of the first bearing seat 2 and the second bearing seat 4 can be parallel surfaces or non-parallel surfaces; the first through hole 21 and the second through hole 41 can be inclined or non-inclined, and the connection form can be selected according to actual design needs to expand the design and structural layout range of the gearbox. In the embodiment of the present application, the first axis and the second axis are parallel to each other, and the sides of the first bearing seat 2 and the second bearing seat 4 that are away from each other are parallel to each other.
[0034] Example 2
[0035] Reference Figure 2 and 3 The difference between the embodiment of the present application and embodiment 1 is that the first axis intersects the second axis, the first bearing seat 2 and the second bearing seat 4 intersect on one side away from each other, and the bottom surface of the first bearing seat 2 is horizontally arranged, and the top surface of the second bearing seat 4 is inclined.
[0036] Example 3
[0037] Reference Figure 2 and 4 The difference between the embodiment of the present application and embodiment 1 is that the first axis intersects the second axis, the first bearing seat 2 and the second bearing seat 4 intersect on one side away from each other, and the bottom surface of the first bearing seat 2 and the top surface of the second bearing seat 4 are both inclined.
[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A bolt connection structure, characterized in that: It comprises a first bearing seat (2), a second bearing seat (4), a stud (3), an inner nut (1) and an outer nut (6); The first bearing seat (2) is provided with a first through hole (21) and a light hole (22), the first through hole (21) and the light hole (22) are connected, and the axis of the first through hole (21) and the axis of the light hole (22) are perpendicular to each other; the second bearing seat (4) is provided with a second through hole (41), the second through hole (41) and the first through hole (21) are coaxially arranged and connected to each other; The stud bolt (3) passes through the first through hole (21) and the second through hole (41); one end of the stud bolt (3) is located in the light hole (22), and the other end is threadedly connected to the outer nut (6); the inner nut (1) is located in the light hole (22) and is threadedly connected to the stud bolt (3).
2. A bolt connection structure according to claim 1, characterized in that: The inner nut (1) is a cylindrical nut, and the outer circle of the cylindrical nut and the light hole (22) are clearance-matched.
3. A bolt connection structure according to claim 1 or 2, characterized in that: A threaded hole (11) is provided on the side wall of the inner nut (1).
4. A bolt connection structure according to claim 1 or 2, characterized in that: The axis of the first bearing seat (2) and the second bearing seat (4) is a first axis, the axis of the first through hole (21) and the second through hole (41) is a second axis, and the first axis and the second axis are parallel to or intersect each other.
5. A bolt connection structure according to claim 1 or 2, characterized in that: The sides of the first bearing seat (2) and the second bearing seat (4) that are away from each other are parallel to or intersect with each other.
6. A bolt connection structure according to claim 1 or 2, characterized in that: A washer (5) is provided at one end of the second bearing seat (4) away from the first bearing seat (2), and the washer (5) is located between the second bearing seat (4) and the outer nut (6).