Four-claw output shaft

Abstract

The utility model relates to the technical field of couplings, in particular to a four-claw output shaft which comprises a four-claw output shaft body, a four-claw driven shaft is arranged on one side of the four-claw output shaft body, and an elastic piece is arranged between the four-claw output shaft body and the four-claw driven shaft. A lower semi-circular ring and an upper semi-circular ring are arranged below and above the space between the four-claw output shaft, the four-claw driven shaft and the elastic piece respectively, connecting blocks are installed at the two ends of the lower semi-circular ring and the two ends of the upper semi-circular ring, threaded holes are formed in the connecting blocks, and hexagon socket screws are rotationally installed between the two threaded holes in the two ends through threads. The joints of the four-claw output shaft, the four-claw driven shaft and the elastic piece are tightly attached through the upper semicircular ring and the lower semicircular ring, then the upper semicircular ring and the lower semicircular ring are fixed through the hexagon socket screws, impurities and dust in outside air can be prevented from entering the inner portion through gaps, oil sludge can be reduced, and therefore the cleaning frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a four-claw output shaft. Background Art

[0002] A four-claw coupling is a mechanical transmission device that gets its name from the four claw-shaped parts in its structure. These four claw-shaped parts are distributed between the coupling sleeve and the ring gear, and they achieve the transmission function by interlocking with each other. Their shape resembles that of an animal's claws, hence the name "four-claw coupling."

[0003] The four-claw coupling consists of a four-claw output shaft, a plum blossom rubber pad and a four-claw driven shaft. The four-claw output shaft is connected to the output shaft of the motor, and the four-claw driven shaft is connected to a shaft without its own driving force.

[0004] Chinese Utility Model Publication No.: CN213064394U includes a first connection port, a circular groove is provided on the front side of the first connection port, a round rod is movably connected to the inner cavity of the circular groove, and a second connection port is fixedly installed on the front side of the round rod. The improved top shaft oil pump high-strength four-claw coupling is connected between the first connection port and the second connection port by a connecting block, a first clamping plate and a second clamping plate. When the first clamping plate and the second clamping plate are located in the inner cavity of the clamping groove, the spring is in a compressed state. Then, the upper part of the first clamping plate and the second clamping plate is movably connected to the inner cavity of the through hole, so that when the first clamping plate and the first connection port are located in the inner cavity of the clamping groove and the through hole, the first connection port and the round rod can be tightly connected together, thereby improving the stability of the connection between the first connection port and the round rod and avoiding the first connection port and the round rod from rotating for a long time, which causes the first connection port and the round rod to slowly separate.

[0005] The applicant found that this patent had some shortcomings during use: there was no protection at the gap between the two connecting ports, and impurities and dust in the external air entered the interior through the gap. After a certain period of use, a large amount of sludge would be generated, requiring frequent disassembly and cleaning.

[0006] Therefore, the present invention designs a four-claw output shaft to solve the problems existing in the prior art. Utility Model Content

[0007] The purpose of the present utility model is to provide a four-claw output shaft to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a four-claw output shaft, comprising: a four-claw output shaft, a four-claw driven shaft is provided on one side of the four-claw output shaft, an elastic member is provided between the four-claw output shaft and the four-claw driven shaft, a lower semicircular ring and an upper semicircular ring are respectively provided below and above the four-claw output shaft, the four-claw driven shaft and the elastic member, connecting blocks are installed at both ends of the lower semicircular ring and the upper semicircular ring, a threaded hole is opened on the connecting block, and a hexagon socket bolt is installed between the two threaded holes at both ends by threaded rotation.

[0009] Preferably, the outer walls of the four-claw output shaft and the four-claw driven shaft are both provided with a card slot, and both sides of the inner walls of the lower semicircular ring and the upper semicircular ring are installed with a card strip that is engaged with the card slot. The card strip is inserted into the card slot to limit the upper and lower semicircular rings and improve the stability of the upper and lower semicircular rings.

[0010] Preferably, a lower rubber tube connected to the bottom of the hexagon socket bolt is installed at the bottom of the connecting block on the lower semicircular ring, and an upper rubber tube connected to the top of the hexagon socket bolt is installed at the top of the connecting block on the upper semicircular ring. A threaded cover is provided on the top of the upper rubber tube. The upper and lower rubber tubes and the threaded cover can protect the top and bottom of the hexagon socket bolt, reduce contact with air, and reduce oxidation and rust.

[0011] Preferably, the outer sidewall and the inner sidewall of the lower semicircular ring and the upper semicircular ring are both provided with a graphene layer, and the graphene layer has a heat conducting effect and can improve heat dissipation.

[0012] Preferably, the top inner wall of the upper rubber cylinder is provided with an internal thread, and the outer side wall of the threaded cover is provided with an external thread, and the threaded cover is conveniently disassembled by engaging the internal and external threads.

[0013] Preferably, a knob is installed on the top of the threaded cover, which makes it convenient for staff to rotate the threaded cover.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model uses upper and lower semicircular rings to tightly fit the connection between the four-claw output shaft, the four-claw driven shaft and the elastic member, and then fixes the upper and lower semicircular rings with hexagon socket bolts, which can reduce the entry of impurities and dust in the external air through the gaps, reduce the generation of sludge, and thus reduce the number of cleaning times;

[0016] 2. The utility model can protect the top and bottom of the hexagon socket bolt exposed to the outside through the upper and lower rubber tubes and the threaded cover, reduce the contact between the hexagon socket bolt and the air, and reduce oxidation and rust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the structure of the four-claw output shaft of the utility model;

[0018] Figure 2 It is a schematic diagram of the upper and lower semicircular ring structures of the present utility model;

[0019] Figure 3 This is a schematic diagram of the main view of the protection state of the utility model;

[0020] Figure 4 It is a main schematic diagram of the utility model.

[0021] In the figure: 1. Four-claw output shaft; 2. Four-claw driven shaft; 3. Elastic member; 4. Lower semicircular ring; 5. Upper semicircular ring; 6. Connecting block; 7. Threaded hole; 8. Hexagon socket bolt; 9. Slot; 10. Clip strip; 11. Lower rubber tube; 12. Upper rubber tube; 13. Threaded cover; 14. Graphene layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides an embodiment: a four-claw output shaft, comprising: a four-claw output shaft 1, a four-claw driven shaft 2 is provided on one side of the four-claw output shaft 1, an elastic member 3 is provided between the four-claw output shaft 1 and the four-claw driven shaft 2, and a lower semicircular ring 4 and an upper semicircular ring 5 are respectively provided below and above the four-claw output shaft 1, the four-claw driven shaft 2 and the elastic member 3, and connecting blocks 6 are installed at both ends of the lower semicircular ring 4 and the upper semicircular ring 5, and threaded holes 7 are opened on the connecting block 6, and hexagon socket bolts 8 are installed between the two threaded holes 7 at both ends by threaded rotation.

[0024] See also Figure 1-3 In this embodiment: the outer walls of the four-claw output shaft 1 and the four-claw driven shaft 2 are both provided with a card slot 9, and both sides of the inner walls of the lower semicircular ring 4 and the upper semicircular ring 5 are equipped with a card strip 10 that is engaged with the card slot 9.

[0025] See also Figure 1-3 In this embodiment: a lower rubber tube 11 is installed at the bottom of the connecting block 6 on the lower semicircular ring 4 and is connected to the bottom of the hexagon socket bolt 8. An upper rubber tube 12 is installed at the top of the connecting block 6 on the upper semicircular ring 5 and is connected to the top of the hexagon socket bolt 8. A threaded cover 13 is provided on the top of the upper rubber tube 12. The upper and lower rubber tubes are made of rubber to reduce weight.

[0026] See also Figure 1-3 In this embodiment, the outer and inner walls of the lower semicircular ring 4 and the upper semicircular ring 5 are both provided with a graphene layer 14. The graphene layer refers to a two-dimensional material composed of a single layer of carbon atoms. Graphene has very good thermal conductivity.

[0027] See also Figure 1-3 In this embodiment, the top inner wall of the upper rubber tube 12 is provided with an internal thread, and the outer side wall of the threaded cover 13 is provided with an external thread.

[0028] See also Figure 1-3 In this embodiment, a knob is installed on the top of the threaded cover 13.

[0029] Working principle: The four-claw output shaft 1 is connected to the motor output shaft, and the four-claw driven shaft 2 is connected to the driven shaft. The four-claw output shaft 1, the four-claw driven shaft 2 and the elastic member 3 are clamped together. The motor output shaft rotates to drive the transmission shaft to rotate. During use, the lower semicircular ring 4 and the upper semicircular ring 5 are respectively installed below and above the four-claw output shaft 1, the four-claw driven shaft 2 and the elastic member 3. The clamping strip 10 is clamped into the clamping slot 9, and then the hexagon socket bolt 8 is screwed into the threaded hole 7 on the connecting block 6 to fix the lower semicircular ring 4 and the upper semicircular ring 5. The lower semicircular ring 4 and the upper semicircular ring 5 are tightly attached to the four-claw output shaft 1, the four-claw driven shaft 2 and the elastic member 3, which can play a dust-proof role at the connection between the four-claw output shaft 1, the four-claw driven shaft 2 and the elastic member 3. The lower rubber tube 11, the upper rubber tube 12 and the threaded cover 13 can protect the bottom and top of the hexagon socket bolt 8, reducing contact with the air. The graphene layer 14 can heat the four-claw output shaft 1 and the four-claw driven shaft 2. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A four-claw output shaft, comprising: A four-claw output shaft (1) is characterized in that: a four-claw driven shaft (2) is provided on one side of the four-claw output shaft (1), an elastic member (3) is provided between the four-claw output shaft (1) and the four-claw driven shaft (2), a lower semicircular ring (4) and an upper semicircular ring (5) are provided below and above the four-claw output shaft (1), the four-claw driven shaft (2) and the elastic member (3), respectively, and connecting blocks (6) are installed at both ends of the lower semicircular ring (4) and the upper semicircular ring (5), and the connecting blocks (6) are provided between the four-claw output shaft (1), the four-claw driven shaft (2) and the elastic member (3). A threaded hole (7) is provided on the upper portion, and a hexagon socket bolt (8) is installed between the two threaded holes (7) at both ends through thread rotation. A lower rubber tube (11) is installed at the bottom of the connecting block (6) on the lower semicircular ring (4) and is connected to the bottom of the hexagon socket bolt (8). An upper rubber tube (12) is installed at the top of the connecting block (6) on the upper semicircular ring (5) and is connected to the top of the hexagon socket bolt (8). A threaded cover (13) is provided at the top of the upper rubber tube (12).

2. The four-claw output shaft according to claim 1, characterized in that: The outer walls of the four-claw output shaft (1) and the four-claw driven shaft (2) are both provided with a clamping groove (9), and both sides of the inner walls of the lower semicircular ring (4) and the upper semicircular ring (5) are both provided with a clamping strip (10) that is clamped with the clamping groove (9).

3. The four-claw output shaft according to claim 1, characterized in that: The outer sidewalls and inner sidewalls of the lower semicircular ring (4) and the upper semicircular ring (5) are both provided with a graphene layer (14).

4. The four-claw output shaft according to claim 1, characterized in that: The top inner wall of the upper rubber cylinder (12) is provided with an internal thread, and the outer side wall of the threaded cover (13) is provided with an external thread.

5. The four-claw output shaft according to claim 1, characterized in that: A knob is installed on the top of the threaded cover (13).

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