Intermediate connecting rod and shaft sleeve of coupler

Abstract

The utility model relates to the technical field of couplings, in particular to a middle connecting rod and a shaft sleeve of a coupler, and provides the middle connecting rod of the coupler, which comprises locking sections arranged at two ends of the connecting rod, separation blades arranged between the locking sections and the connecting rod, and nuts screwed on the locking sections. A plurality of grooves are formed in the side wall of the nut, and torsion auxiliary parts are embedded in the grooves; through the arrangement of the torsion auxiliary part, the nut can be locked in place, the phenomenon that the shaft sleeve is loosened is avoided, the nut is convenient to disassemble and repair, and the risk that the nut is damaged is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and more specifically, to an intermediate connecting rod and bushing of a coupling. Background Technology

[0002] The connecting rods used in existing couplings are quite common. They are mainly assembled on the bushing to extend the coupling. In related technologies, the connecting rod and the bushing are locked together by a simple thread. To prevent the bushing from shaking and damaging the shaft due to loose threads, the nut is often tightened too much. This makes it difficult to turn the nut when disassembling and repairing the coupling. A large torque is required to turn the nut. This process not only makes it easy for the tightening tool to slip, but also easily damages the surface of the nut. As a result, the only way to remove the coupling is to cut off the nut. This is not only time-consuming and labor-intensive, but also requires the investment of purchasing a new nut.

[0003] Therefore, it is necessary to provide an intermediate connecting rod for a coupling with a torsion assist component. Utility Model Content

[0004] This utility model provides an intermediate connecting rod and bushing of a coupling to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides an intermediate connecting rod for a coupling, comprising: locking sections disposed at both ends of the connecting rod, baffles disposed between the locking sections and the connecting rod, nuts screwed onto the locking sections, multiple grooves formed on the side wall of the nuts, and torsion aids embedded in the grooves.

[0006] Furthermore, a portion of the torsion aid extends outside the groove.

[0007] Furthermore, the torsion aid is ring-shaped.

[0008] Furthermore, the torsion auxiliary component is made of rubber.

[0009] Furthermore, the vertical cross-section of the torsion auxiliary component is an isosceles trapezoid, and the thickness of the torsion auxiliary component gradually increases along the direction away from the circular position of the nut.

[0010] This utility model also provides a bushing, two of which are connected by a plurality of connecting rods as described above.

[0011] Furthermore, the inner wall of the bushing is provided with a self-lubricating structure.

[0012] Furthermore, the self-lubricating structure includes an inner deep oil reservoir filled with a solid lubricant.

[0013] Furthermore, a shallow outer groove for oil return is provided at a concentric position of the deep inner groove for oil storage, and the inner ring wall of the shallow outer groove for oil return is the outer ring wall of the deep inner groove for oil storage.

[0014] Furthermore, the shallow outer oil return groove is connected to the deep inner oil storage groove through multiple oil return channels.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting a torsion auxiliary component, not only can the nut be tightened in place to prevent the bushing from becoming loose, but it also facilitates the disassembly and repair of the nut and reduces the risk of nut damage.

[0017] By setting up a deep oil reservoir, the lubricant can be contained and spillage can be prevented, thus increasing the service life of self-lubrication.

[0018] By setting a shallow groove for oil return, the lubricant can be returned to its original position when the shaft is in a static state, reducing the probability of lubricant flowing out from the gap between the bushing and the shaft. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a perspective view of the preferred embodiment of the intermediate connecting rod of the coupling according to the present invention;

[0021] Figure 2 This is a perspective view of the preferred embodiment of the nut of this utility model;

[0022] Figure 3 This is a cross-sectional view of the preferred embodiment of the torsion auxiliary component of this utility model;

[0023] Figure 4 This is a perspective view of the preferred embodiment of the intermediate connecting rod and bushing of the coupling according to the present invention;

[0024] Figure 5 This is a perspective view of the preferred embodiment of a bushing according to the present invention;

[0025] Figure 6 This is a cross-sectional view of the preferred embodiment of the bushing of this utility model;

[0026] Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.

[0027] Among them, 1. connecting rod; 2. baffle; 3. locking section; 4. nut; 5. groove; 6. torsion auxiliary component; 7. bushing; 8. inner deep groove of oil reservoir; 9. outer shallow groove of oil return; 10. oil return channel. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0029] Please see Figure 1 and combined Figure 2 , Figure 1 This is a perspective view of the preferred embodiment of the intermediate connecting rod of the coupling according to the present invention; Figure 2 This is a perspective view of the preferred embodiment of the nut of this utility model. Figures 1 to 2 As shown, at least one embodiment provides an intermediate connecting rod of a coupling, including: locking sections 3 disposed at both ends of the connecting rod 1, the locking sections 3 and the connecting rod 1 being integrally formed; specifically, the locking sections 3 are rod portions with threaded grooves on their surfaces; for connecting two bushings 7, a baffle 2 is disposed between the locking sections 3 and the connecting rod 1, the baffle 2 being used to abut against the flanges on the bushings 7; additionally, a nut 4 is screwed onto the locking sections 3, the nut 4 being hexagonal, and its corner positions are easily worn or deformed when the torque is too high; flange clamps. The baffle 2 and the nut 4 are fixed together. In order to solve the problem that the nut 4 is easy to deform and difficult to remove due to excessive torque, multiple grooves 5 are opened on the side wall of the nut 4. A torsion auxiliary 6 is embedded in the groove 5. Part of the torsion auxiliary 6 extends to the outside of the groove 5. This is to increase the friction between the outer wall of the nut 4 and the torsion drive, and to reduce the contact area between the nut 4 and the torsion drive through the torsion auxiliary 6, thereby preventing the corner of the nut 4 from being easily deformed when subjected to large torque.

[0030] Please continue reading. Figure 2 and combined Figure 3 , Figure 3 This is a cross-sectional view of the preferred embodiment of the torsion auxiliary component of this utility model. (See attached image.) Figures 2 to 3 As shown, the torsion auxiliary component 6 is annular. The torsion auxiliary component 6 is made of rubber. The vertical cross-section of the torsion auxiliary component 6 is an isosceles trapezoid, and the thickness of the torsion auxiliary component 6 gradually increases in the direction away from the circular position of the nut 4. The main function of this design is to make the greater the torsion force when the torsion drive component is squeezed against the rubber strip, the more the rubber strip will be pressed into the groove 5, and thus the greater the rebound force, and the more obvious the effect of enhancing friction.

[0031] Please see Figure 4 and combined Figures 5 to 7 , Figure 4 This is a perspective view of the preferred embodiment of the intermediate connecting rod and bushing of the coupling according to the present invention; Figure 5 This is a perspective view of the preferred embodiment of a bushing according to the present invention; Figure 6 This is a cross-sectional view of the preferred embodiment of the bushing of this utility model; Figure 7This utility model Figure 6 A magnified structural diagram at point A in the middle. (See diagram below.) Figures 4 to 7 As shown, this utility model also provides a bushing, with two bushings 7 connected by a plurality of connecting rods 1 as described above. The inner wall of the bushing 7 is provided with a self-lubricating structure. In related technologies, the self-lubricating structure includes a lubricant receiving hole, into which lubricant is placed. When friction heats up, the surface melts. Therefore, if used continuously for a long time, the temperature is likely to be high. At this time, the lubricant at both ends of the through hole may melt simultaneously, resulting in the unnecessary lubrication surface being filled with lubricating oil, which not only causes waste but is also difficult to clean. The self-lubricating structure in this embodiment includes two grooves. Compared with the through hole, only the lubrication surface has an outlet position. The components of the self-lubricating structure are described in detail below. The self-lubricating structure includes an inner deep oil storage groove 8, which is filled with solid lubricant. An outer shallow oil return groove 9 is provided at the concentric position of the inner deep oil storage groove 8. The outer shallow oil return groove 9 is empty in the initial state, and the inner ring wall of the outer shallow oil return groove 9 is the outer ring wall of part of the inner deep oil storage groove 8. The shallow outer groove 9 for oil return is connected to the deep inner groove 8 for oil storage through multiple oil return channels 10. In other words, the shallow outer groove 9 for oil return and the deep inner groove 8 for oil storage share a wall with different depths. The depth of the deep inner groove 8 for oil storage is greater than that of the shallow outer groove 9 for oil return. When the shaft stops rotating, some of the lubricating oil is in a liquid state. At this time, the lubricating oil near the shallow outer groove 9 can return to the deeper deep inner groove 8 for oil storage through the oil return channels 10 and gradually solidify as the temperature decreases, reducing the probability of excess lubricating oil overflowing between the bushing and the gap when the shaft is stopped.

[0032] In summary, by setting the torsion auxiliary component 6, not only can the nut 4 be locked in place to prevent the bushing 7 from becoming loose, but it also facilitates the disassembly and repair of the nut 4 and reduces the risk of damage to the nut 4; by setting the deep oil reservoir 8, the lubricant can be contained and overflow can be prevented, thereby increasing the self-lubricating service life; by setting the shallow oil return groove 9, the lubricant can be returned when static, reducing the probability of lubricant flowing out from the gap between the bushing 7 and the shaft.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An intermediate connecting rod of a coupling, characterized in that, include: Locking sections (3) are provided at both ends of the connecting rod (1). A baffle (2) is provided between the locking section (3) and the connecting rod (1). A nut (4) is screwed onto the locking section (3). Multiple grooves (5) are provided on the side wall of the nut (4). A torsion auxiliary component (6) is embedded in the groove (5).

2. The intermediate connecting rod of a coupling as described in claim 1, characterized in that: Part of the torsion aid (6) extends outside the groove (5).

3. The intermediate connecting rod of a coupling as described in claim 2, characterized in that: The torsion auxiliary component (6) is ring-shaped.

4. The intermediate connecting rod of a coupling as described in claim 3, characterized in that: The torsion auxiliary component (6) is made of rubber.

5. The intermediate connecting rod of a coupling as described in claim 4, characterized in that: The vertical cross-section of the torsion auxiliary component (6) is an isosceles trapezoid, and the thickness of the torsion auxiliary component (6) gradually increases along the direction away from the circular position of the nut (4).

6. A bushing, characterized in that: The two bushings (7) are connected by a plurality of connecting rods (1) as described in any one of claims 1-5.

7. A bushing as described in claim 6, characterized in that: The inner wall of the bushing (7) is provided with a self-lubricating structure.

8. A bushing as described in claim 7, characterized in that: The self-lubricating structure includes an inner deep oil reservoir (8) filled with a solid lubricant.

9. A bushing as described in claim 8, characterized in that: An outer shallow groove (9) for returning oil is provided at the concentric position of the inner deep groove (8) for oil storage, and the inner ring wall of the outer shallow groove (9) for returning oil is the outer ring wall of part of the inner deep groove (8) for oil storage.

10. A bushing as described in claim 9, characterized in that: The shallow outer oil return channel (9) is connected to the deep inner oil storage channel (8) through multiple oil return channels (10).

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