Gear type universal coupling

Abstract

The utility model discloses a gear type universal coupling which comprises a coupling body and a connecting seat, the coupling body is composed of a first split shaft body and a second split shaft body, and an extension device is arranged between the first split shaft body and the second split shaft body. A first butt-joint plate and a second butt-joint plate are fixedly connected to the opposite side walls between the first split shaft body and the second split shaft body correspondingly, a plurality of linkage devices are arranged on the side wall of the first butt-joint plate in a penetrating mode, and a plurality of locking devices are arranged at the positions, at the corresponding positions, of the side wall of the second butt-joint plate. And the lower end of the connecting seat is fixedly connected with a connecting device. The split shaft has the advantages that the distance between the split shaft bodies is convenient to adjust, and stability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of universal coupling technology, specifically to gear-type universal couplings. Background Technology

[0002] Universal couplings are mechanical connection devices that can transmit torque and motion between two shafts, allowing for an angle between the shafts. The cross-shaft type is the most common, consisting of two fork-shaped parts and a cross-shaped part. The ball cage type uses an inner and outer ball cage structure to achieve angle compensation and torque transmission. The ball fork type achieves angle compensation through the cooperation of a ball head and a ball seat. Other common structural types include the cam type, ball pin type, and ball hinge type, each with its own characteristics and applications. Universal couplings have a large angular compensation capability: they can compensate for the included angle between the shafts within a certain range, typically between 5° and 45°, and can transmit large torques and loads, with a transmission efficiency of up to 90%. With a range of 8% to 99.8%, these couplings exhibit low vibration and noise during operation, improving the comfort of the working environment. In the automotive industry, they are used to transmit engine power to the wheels while allowing the wheels to bounce up and down during driving without affecting power transmission. In aerospace, they are used in aircraft and spacecraft where precise angle control and the transmission of large amounts of torque are required. In heavy machinery, such as metallurgical equipment and mining machinery, they need to withstand heavy loads and adapt to complex working environments. In precision machinery, such as machine tools, high-precision angle compensation and stable transmission performance are required. Universal couplings play a crucial role in modern mechanical equipment, and their unique structure and function make them widely used in many fields.

[0003] In existing technologies, the expandability of universal couplings needs to be updated in practical applications. They need to selectively change their length according to the usage scenario to adapt to connections in different positions. In order to reduce unnecessary defects during the length change process, we propose a gear-type universal coupling. Utility Model Content

[0004] The purpose of this utility model is to provide a gear-type universal coupling to solve the problems existing in the prior art as described in the background section.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gear-type universal coupling includes a coupling body and a connecting seat. The coupling body is composed of a first split shaft and a second split shaft. An extension device is provided between the first split shaft and the second split shaft. A first mating plate and a second mating plate are fixedly connected to the opposite side walls of the first split shaft and the second split shaft, respectively. Multiple linkage devices are provided through the side wall of the first mating plate. Multiple locking devices are provided on the side wall of the second mating plate at corresponding positions. A connecting device is fixedly connected to the lower end of the connecting seat.

[0007] Preferably, the extension device includes an extension rod disposed between the first split shaft and the second split shaft. The extension rod is fixedly connected to the first split shaft, and a groove is provided through the end of the second split shaft at the corresponding position. The other end of the extension rod is slidably connected in the groove.

[0008] Preferably, the linkage device includes a plurality of fixing bolts fixedly connected to the side wall of the first docking plate, and a plurality of docking holes are provided through the side wall of the second docking plate at the corresponding position, with the tail ends of the plurality of fixing bolts passing through each docking hole respectively.

[0009] Preferably, the locking device includes two fixing nuts respectively disposed on both sides of the second mating plate, and the four fixing nuts are all threadedly connected to the fixing bolts at corresponding positions, with a shock-absorbing pad disposed between the two fixing nuts on the same side.

[0010] Preferably, the connecting device includes two slide plates fixedly connected to the lower end of the connecting seat, and the first split shaft and the second split shaft are slidably connected to the two slide plates respectively.

[0011] Preferably, a pointer is fixedly connected to the side wall of the second docking plate, and a scale is fixedly connected to the lower end of the connecting seat at the corresponding position, with the position of the pointer corresponding to the position of the scale.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In this utility model, by setting an extension device, a linkage device, a locking device, and a connecting device to cooperate with each other, when the two split shafts extend their distance, the corresponding extension rod serves as the central shaft. The relative position is maintained by multiple fixing bolts and fixing nuts. The shock-absorbing pads can prevent vibration from causing the fixing nuts to loosen. At the same time, the actual extension distance can be determined by a scale, which facilitates the adaptation and installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the gear-type universal coupling proposed in this utility model;

[0015] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Coupling body, 2. Connecting seat, 3. Slide plate, 4. Ruler, 5. Pointer, 6. First split shaft, 7. Fixing bolt, 8. First mating plate, 9. Shock-absorbing pad, 10. Second mating plate, 11. Fixing nut, 12. Second split shaft, 13. Extension rod. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-2 A gear-type universal coupling includes a coupling body 1 and a connecting seat 2. The coupling body 1 is composed of a first sub-shaft 6 and a second sub-shaft 12. An extension device is provided between the first sub-shaft 6 and the second sub-shaft 12. The extension device includes an extension rod 13 disposed between the first sub-shaft 6 and the second sub-shaft 12. The extension rod 13 is fixedly connected to the first sub-shaft 6. A sliding groove is provided through the end of the second sub-shaft 12 at the corresponding position. The other end of the extension rod 13 is slidably connected in the sliding groove.

[0019] Among them, a first docking plate 8 and a second docking plate 10 are fixedly connected to the opposite side walls of the first split shaft 6 and the second split shaft 12, respectively. Multiple linkage devices are provided through the side wall of the first docking plate 8. The linkage devices include multiple fixing bolts 7 fixedly connected to the side wall of the first docking plate 8. Multiple docking holes are provided through the side wall of the second docking plate 10 at the corresponding position. The tail ends of the multiple fixing bolts 7 pass through each docking hole.

[0020] Among them, the side wall of the second docking plate 10 at the corresponding position is provided with multiple locking devices. The locking devices include two fixing nuts 11 respectively located on both sides of the second docking plate 10. All four fixing nuts 11 are threadedly connected to the fixing bolts 7 at the corresponding positions. A shock-absorbing pad 9 is provided between the two fixing nuts 11 located on the same side.

[0021] Specifically, a connecting device is fixedly connected to the lower end of the connecting seat 2. The connecting device includes two slide plates 3 fixedly connected to the lower end of the connecting seat 2, and the first split shaft 6 and the second split shaft 12 are slidably connected to the two slide plates 3 respectively.

[0022] Specifically, a pointer 5 is fixedly connected to the side wall of the second docking plate 10, and a ruler 4 is fixedly connected to the lower end of the corresponding connecting seat 2. The position of the pointer 5 corresponds to the position of the ruler 4.

[0023] In this invention, when it is necessary to adjust the distance between the first sub-shaft 6 and the second sub-shaft 12, each fixing nut 11 can be loosened, and then the corresponding second sub-shaft 12 and the second mating plate 10 can be moved to increase the relative distance between them and the extension rod 13, thereby extending the distance between the first sub-shaft 6 and the second sub-shaft 12. After tightening each fixing nut 11, positioning and locking can be achieved. The corresponding pointer 5 will indicate the actual change in distance according to the scale change of the ruler 4.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear-type universal coupling, comprising a coupling body (1) and a connecting seat (2), characterized in that, The coupling body (1) is composed of a first split shaft (6) and a second split shaft (12). An extension device is provided between the first split shaft (6) and the second split shaft (12). A first docking plate (8) and a second docking plate (10) are fixedly connected to the opposite side walls of the first split shaft (6) and the second split shaft (12). Multiple linkage devices are provided through the side wall of the first docking plate (8). Multiple locking devices are provided on the side wall of the second docking plate (10) at the corresponding position. A connecting device is fixedly connected to the lower end of the connecting seat (2).

2. The gear-type universal coupling according to claim 1, characterized in that, The extension device includes an extension rod (13) disposed between the first split shaft (6) and the second split shaft (12). The extension rod (13) is fixedly connected to the first split shaft (6), and a sliding groove is provided through the port of the second split shaft (12) at the corresponding position. The other end of the extension rod (13) is slidably connected in the sliding groove.

3. The gear-type universal coupling according to claim 1, characterized in that, The linkage device includes multiple fixing bolts (7) fixedly connected to the side wall of the first docking plate (8), and multiple docking holes are provided through the side wall of the second docking plate (10) at the corresponding position, with the tail ends of the multiple fixing bolts (7) passing through each docking hole respectively.

4. The gear-type universal coupling according to claim 1, characterized in that, The locking device includes two fixing nuts (11) respectively located on both sides of the second docking plate (10). All four fixing nuts (11) are threaded onto fixing bolts (7) at corresponding positions. A shock-absorbing pad (9) is provided between the two fixing nuts (11) located on the same side.

5. The gear-type universal coupling according to claim 1, characterized in that, The connecting device includes two slide plates (3) fixedly connected to the lower end of the connecting seat (2), and the first split shaft (6) and the second split shaft (12) are slidably connected to the two slide plates (3).

6. The gear-type universal coupling according to claim 1, characterized in that, A pointer (5) is fixedly connected to the side wall of the second docking plate (10), and a ruler (4) is fixedly connected to the lower end of the connecting seat (2) at the corresponding position. The position of the pointer (5) corresponds to the position of the ruler (4).

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