Wheelbase-adjustable coupling

Abstract

The utility model discloses a kind of shaft distance adjustable couplings, including driving connection half shaft and driven connection half shaft, multiple groups of adjusting components are equipped between the two, two half shafts are opened with multiple evenly spaced connecting holes, adjusting hole is matched on the both sides of connecting hole, adjusting component is installed in connecting hole and adjusting hole correspondingly, connecting bolt is installed in connecting hole, positioning sleeve is equipped on bolt, positioning sleeve both sides extend mounting plate, mounting plate end is equipped with matched positioning telescopic sleeve and placed in adjusting hole bottom, adjusting bolt is also installed in adjusting hole, and its one end is inserted into the positioning telescopic sleeve above;The coupling is matched with positioning telescopic sleeve by adjusting bolt, rotating adjusting bolt can push positioning column to move in sleeve, compression or stretch compression spring, realize shaft distance adjustment to adapt to different shaft spacing requirement, nut hole and sleeve hole are separately arranged at the both ends of connecting hole, convenient nut and positioning sleeve assembly disassembly, can reduce installation debugging time and maintenance cost.

Description

Technical Field

[0001] This utility model specifically relates to a coupling with adjustable shaft spacing. Background Technology

[0002] A coupling is a mechanical component used to connect two shafts in different mechanisms, enabling them to rotate together and transmit torque. In high-speed, heavy-load power transmission, some couplings also serve to buffer, dampen vibrations, and improve the dynamic performance of the shaft system.

[0003] Currently, the main types of couplings on the market include rigid movable couplings and flexible movable couplings. However, these couplings cannot meet the corresponding shaft spacing requirements in applications with long shaft spacing. In scenarios where shaft spacing needs to be adjusted according to site conditions, existing couplings are difficult to meet the requirements, and it is often necessary to disassemble and replace them with couplings that meet the requirements, resulting in low efficiency and affecting production.

[0004] Therefore, it is necessary to invent a coupling with adjustable shaft pitch to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a coupling with adjustable shaft spacing, which can adjust the connecting shaft spacing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a coupling with adjustable shaft distance, comprising an active connecting half shaft and a driven connecting half shaft, wherein multiple sets of adjustment components are provided between the two, and the multiple sets of adjustment components jointly adjust the distance between the two;

[0009] Both the active connecting half-shaft and the driven connecting half-shaft are provided with multiple evenly spaced connecting holes, and adjustment holes are provided on both sides of the multiple connecting holes. The adjustment component is installed in the multiple connecting holes and the adjustment holes.

[0010] The adjustment assembly includes a connecting bolt installed in the connecting hole. A positioning sleeve is installed on the connecting bolt at the inner side of the active connecting half shaft and the driven connecting half shaft. Mounting plates extend from both sides of the positioning sleeve. Matching positioning telescopic kits are provided at the ends of the upper and lower mounting plates. The positioning telescopic kits are located at the bottom of the adjustment hole. An adjustment bolt is also installed in the adjustment hole. The adjustment bolt passes through the adjustment hole and into the positioning telescopic kit above.

[0011] Preferably, the positioning telescopic kit includes a sleeve disposed at the end of the upper mounting plate, the sleeve being through-hole, and its top being installed in the positioning groove at the bottom of the adjusting hole. A limiting ring is provided at the bottom of the sleeve, and a positioning post matching the sleeve is provided at the end of the lower mounting plate. The positioning post is placed inside the sleeve, and a limiting plate extends from the top edge of the positioning post. The limiting plate matches the limiting ring. A compression spring is installed between the top of the positioning post and the top of the inner side of the sleeve. The lower part of the adjusting bolt is placed inside the sleeve, and its end contacts the top of the positioning post.

[0012] Preferably, the top nut of the adjusting bolt is hexagonal, and the external thread matches the thread of the inner wall of the adjusting hole. The compression spring is placed outside the adjusting bolt, and the bottom of the adjusting bolt is hemispherical. The top of the positioning post is provided with a groove that matches the bottom of the adjusting bolt.

[0013] Preferably, the two ends of the connecting hole are respectively provided with nut holes and sleeve holes, the nut holes and the sleeve holes are respectively used to install the nut and the positioning sleeve, and the nut and the nut hole are both hexagonal.

[0014] Preferably, the connecting bolt is provided with limit caps at both ends, and the limit caps are placed outside the connecting holes on the upper and lower sides.

[0015] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0016] 1. This utility model can easily change the distance between the active connecting half shaft and the driven connecting half shaft by adjusting the bolt and the positioning telescopic kit; by rotating the adjusting bolt, its end pushes the positioning pin to move in the sleeve, compressing or stretching the compression spring, thereby realizing the adjustment of the shaft distance, which can adapt to the installation requirements of different shaft distances.

[0017] 2. This utility model has nut holes and sleeve holes at both ends of the connecting hole, which facilitates the installation and disassembly of the nut and the positioning sleeve; the hexagonal nut on the top of the adjusting bolt is convenient for operation with tools. The overall structure is reasonably designed, making the coupling easier to install and maintain, and can effectively reduce installation and debugging time and maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the adjustment component of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the adjustment component of this utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the adjustment component of this utility model. Figure 2 .

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Active connecting half shaft; 2. Driven connecting half shaft; 3. Adjusting assembly; 31. Connecting bolt; 32. Positioning sleeve; 33. Mounting plate; 34. Positioning telescopic kit; 341. Sleeve; 342. Limiting ring; 343. Positioning post; 344. Limiting plate; 345. Compression spring; 346. Groove; 35. Limiting cap; 4. Connecting hole; 41. Nut hole; 42. Sleeve hole; 5. Adjusting hole; 51. Positioning groove; 6. Adjusting bolt; 7. Nut. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-4 The coupling shown includes an adjustable shaft distance, comprising a driving connecting half shaft 1 and a driven connecting half shaft 2, with multiple sets of adjusting components 3 provided between them, which together adjust the distance between them.

[0027] Specifically, both the active connecting half shaft 1 and the driven connecting half shaft 2 are provided with multiple evenly spaced connecting holes 4, and adjustment holes 5 are provided on both sides of the multiple connecting holes 4. Adjustment components 3 are installed in the multiple connecting holes 4 and the adjustment holes 5.

[0028] Specifically, the adjustment assembly 3 includes a connecting bolt 31 installed in the connecting hole 4. A positioning sleeve 32 is installed on the connecting bolt 31 at the inner side of the active connecting half shaft 1 and the driven connecting half shaft 2. Mounting plates 33 extend from both sides of the positioning sleeve 32. Matching positioning telescopic kits 34 are provided at the ends of the upper and lower mounting plates 33. The positioning telescopic kits 34 are located at the bottom of the adjustment hole 5. An adjustment bolt 6 is also installed in the adjustment hole 5. The adjustment bolt 6 passes through the adjustment hole 5 into the upper positioning telescopic kit 34.

[0029] Specifically, the positioning telescopic kit 34 includes a sleeve 341 disposed at the end of the upper mounting plate 33. The sleeve 341 is internally disposed and its top is installed in the bottom positioning groove 51 of the adjustment hole 5. A limiting ring 342 is provided at the bottom of the sleeve 341. A positioning post 343 matching the sleeve 341 is provided at the end of the lower mounting plate 33. The positioning post 343 is placed inside the sleeve 341, and a limiting plate 344 extends from the top edge of the positioning post 343. The limiting plate 344 matches the limiting ring 342. A compression spring 345 is installed between the top of the positioning post 343 and the top of the inner side of the sleeve 341. The lower part of the adjusting bolt 6 is placed inside the sleeve 341, and its end contacts the top of the positioning post 343.

[0030] Specifically, the top nut of the adjusting bolt 6 is hexagonal, and the external thread matches the inner thread of the adjusting hole 5. The compression spring 345 is placed outside the adjusting bolt 6, and the bottom of the adjusting bolt 6 is hemispherical. The top of the positioning post 343 is provided with a groove 346 that matches the bottom of the adjusting bolt 6.

[0031] Specifically, the two ends of the connecting hole 4 are respectively provided with nut hole 41 and sleeve hole 42. Nut hole 41 and sleeve hole 42 are respectively installed with nut 7 and positioning sleeve 32. Nut 7 and nut hole 41 are both hexagonal.

[0032] Specifically, the connecting bolt 31 is provided with limit caps 35 at both ends, and the limit caps 35 are placed outside the connecting holes 4 on the upper and lower sides.

[0033] In this embodiment, the top of the sleeve 341 is embedded into the positioning groove 51 at the bottom of the adjustment hole 5 to ensure that the sleeve 341 and the adjustment hole 5 are coaxial; a compression spring 345 is placed into the sleeve 341, and then the positioning pin 343 is inserted from the bottom of the sleeve 341, so that the limiting plate 344 at the top of the positioning pin 343 and the limiting ring 342 at the bottom of the sleeve 341 are engaged. At this time, the bottom of the positioning pin 343 is welded and fixed to the end of the lower mounting plate 33, and the top of the sleeve 341 is welded and fixed to the end of the upper mounting plate 33.

[0034] In this embodiment, the positioning sleeve 32 is placed on the middle of the connecting bolt 31, so that the positioning sleeve 32 is located in the inner gap between the active connecting half shaft 1 and the driven connecting half shaft 2; one end of the connecting bolt 31 is inserted into the sleeve hole 42 of the active connecting half shaft 1, passes through the positioning sleeve 32 and the connecting hole 4 of the driven connecting half shaft 2 in sequence, and finally exits from the nut hole 41 of the driven connecting half shaft 2; a hexagonal nut 7 is installed at the nut hole 41 and tightened, while ensuring that the limiting caps 35 at both ends of the connecting bolt 31 are in close contact with the outer side of the half shaft.

[0035] In this embodiment, the adjusting bolt 6 is screwed into the top of the adjusting hole 5 so that the bottom of the adjusting bolt 6 is embedded in the groove 346 at the top of the positioning post 343. At this time, the compression spring 345 is sleeved on the outside of the adjusting bolt 6 and is in a slightly pre-compressed state. Repeat the above steps to complete the installation of all adjusting components 3.

[0036] In this embodiment, the wheelbase adjustment is released from the locked state of the adjusting bolt 6: if the wheelbase needs to be increased, the adjusting bolt 6 is rotated counterclockwise, the compression spring 345 rebounds and pushes the positioning post 343 downward, causing the driven connecting half shaft 2 to move away from the active connecting half shaft 1; if the wheelbase needs to be decreased, the adjusting bolt 6 is rotated clockwise, the bottom of the bolt presses against the positioning post 343, the compression spring 345 deforms, and the driven connecting half shaft 2 moves closer to the active connecting half shaft 1.

[0037] Specifically, during the adjustment process, the radial runout of the active and driven half-shafts is detected by a dial indicator to ensure that the adjustment amounts of multiple adjustment components 3 are consistent. After the adjustment is completed, the locking nut of the adjustment bolt 6 is tightened.

[0038] In this embodiment, based on the threaded drive of the adjusting bolt 6 and the linear deformation of the compression spring 345, the wheelbase adjustment accuracy is high, which meets the requirements of precision transmission scenarios. According to the deformation stroke of the compression spring 345, combined with the matching length of the positioning column 343 and the sleeve 341, the wheelbase adjustment range can cover 5-25mm, and the transmission center distance of different equipment can be adapted without changing the coupling.

[0039] In this embodiment, if a set of adjustment components 3 is damaged, only the nut 7 of the corresponding connecting bolt 31 needs to be loosened to disassemble the positioning sleeve 32, adjusting bolt 6 and other components separately, without disassembling the entire transmission system.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coupling with adjustable shaft pitch, characterized in that: It includes an active connecting half shaft (1) and a driven connecting half shaft (2), with multiple sets of adjustment components (3) between them, and the multiple sets of adjustment components (3) together adjust the distance between them; Both the active connecting half shaft (1) and the driven connecting half shaft (2) are provided with a plurality of evenly spaced connecting holes (4), and adjustment holes (5) are provided on both sides of the plurality of connecting holes (4). The adjustment component (3) is installed in the plurality of connecting holes (4) and the adjustment holes (5). The adjustment assembly (3) includes a connecting bolt (31) installed in the connecting hole (4). A positioning sleeve (32) is installed on the connecting bolt (31) at the inner side of the active connecting half shaft (1) and the driven connecting half shaft (2). Mounting plates (33) extend from both sides of the positioning sleeve (32). Matching positioning telescopic kits (34) are provided at the ends of the mounting plates (33) on the upper and lower sides. The positioning telescopic kits (34) are located at the bottom of the adjustment hole (5). An adjustment bolt (6) is also installed in the adjustment hole (5). The adjustment bolt (6) passes through the adjustment hole (5) and enters the positioning telescopic kit (34) above.

2. The adjustable-pitch coupling according to claim 1, characterized in that: The positioning telescopic kit (34) includes a sleeve (341) disposed at the end of the upper mounting plate (33). The sleeve (341) is internally disposed and its top is installed in the bottom positioning groove (51) of the adjustment hole (5). A limiting ring (342) is provided at the bottom of the sleeve (341). A positioning post (343) matching the sleeve (341) is provided at the end of the lower mounting plate (33). The positioning post (343) is placed inside the sleeve (341), and a limiting plate (344) extends from the top edge of the positioning post (343). The limiting plate (344) is matched with the limiting ring (342). A compression spring (345) is installed between the top of the positioning post (343) and the top of the inner side of the sleeve (341). The lower part of the adjusting bolt (6) is placed inside the sleeve (341), and its end is in contact with the top of the positioning post (343).

3. The coupling with adjustable shaft pitch according to claim 2, characterized in that: The top nut of the adjusting bolt (6) is hexagonal, and the external thread matches the inner thread of the adjusting hole (5). The compression spring (345) is placed outside the adjusting bolt (6), and the bottom of the adjusting bolt (6) is hemispherical. The top of the positioning post (343) is provided with a groove (346) that matches the bottom of the adjusting bolt (6).

4. The coupling with adjustable shaft pitch according to claim 1, characterized in that: The connecting hole (4) has a nut hole (41) and a sleeve hole (42) at both ends. The nut hole (41) and the sleeve hole (42) are respectively installed with the nut (7) and the positioning sleeve (32). The nut (7) and the nut hole (41) are both hexagonal.

5. The adjustable-pitch coupling according to claim 1, characterized in that: The connecting bolt (31) is provided with limit caps (35) at both ends, and the limit caps (35) are placed outside the connecting holes (4) on the upper and lower sides.

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