Large-torque high-elasticity coupling

Abstract

The invention discloses a large-torque high-elasticity coupling. The large-torque high-elasticity coupler comprises a plurality of pin sets, a plurality of elastic parts and a plurality of elastic parts, wherein each pin set comprises at least two pins; a plurality of first extension claws are arranged on the first hub assembly; a plurality of second extension claws are arranged on the second hub assembly; wherein when the first hub assembly and the second hub assembly are in an assembled state, the multi-hole claw grooves are formed between the first extending claws and the second extending claws which are adjacent in the circumferential direction, each multi-hole claw groove comprises a plurality of pin holes, one pin set is used for being arranged in one multi-hole claw groove, and one pin is used for being installed in one pin hole. According to the large-torque high-elasticity coupling, through the multi-hole claw grooves formed by the first extending claws and the second extending claws, a plurality of pins can be arranged in each multi-hole claw groove in the axial direction to assist in torque transmission, and therefore large-torque transmission is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of couplings, and in particular to a high-torque and high-elasticity coupling. Background Art

[0002] The existing radial pin coupling comprises two hubs, a pin and a retaining ring; claws are evenly distributed on the circumference of the end surface of the hub, and after the two hubs are assembled, the claws on the two adjacent hubs form a pin groove for installing the pin.

[0003] However, the number of existing pins is relatively limited, and the number of pins that can be arranged in the axial length is also relatively limited, resulting in an inability to adapt to application scenarios with large torque.

[0004] Therefore, those skilled in the art provide a high-torque and high-elastic coupling to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a high-torque and high-elastic coupling.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-torque and high-elastic coupling, comprising:

[0008] A plurality of pin groups, each pin group comprising at least two pins;

[0009] a first hub assembly, wherein the first hub assembly is provided with a plurality of first extension claws;

[0010] A second hub assembly, wherein the second hub assembly is provided with a plurality of second extension claws; wherein,

[0011] When the first hub assembly and the second hub assembly are in an assembled state, the porous claw groove is formed between the circumferentially adjacent first extension claw and the second extension claw, and the porous claw groove includes a plurality of pin holes. One pin group is used to be arranged in one porous claw groove, wherein one pin is used to be installed in one pin hole.

[0012] Optionally, the first hub assembly further comprises a first hub, and the first extension claw is disposed on one end of the first hub;

[0013] The second hub assembly further includes a second hub, and the second extension claw is disposed on one end of the second hub close to the first hub.

[0014] Optionally, the structure of each of the first extension claws includes: the first extension claw extends from the first hub direction to the second hub direction, and a plurality of first grooves are provided during the extension process;

[0015] The structure of each second extension claw includes: the second extension claw extends from the second hub direction to the first hub direction, and multiple second grooves are arranged during the extension process; wherein a first groove and a second groove are arranged opposite to each other to form a pin hole, and each pin hole constitutes the porous claw groove.

[0016] Optionally, in each group of pins, at least two pins have different diameters and / or at least two pins have different hardnesses.

[0017] Optionally, when the number of the pin holes in one of the porous claw grooves exceeds three, the pin holes at both ends of the porous claw groove need to meet the following conditions:

[0018] When the pin hole is located at any end of the porous claw groove, the diameter of the pin hole is larger than the diameter of other pin holes except those located at the other end of the pin hole.

[0019] Optionally, when the number of the pin holes in one of the porous claw grooves exceeds three, the pin holes not located at the two ends of the porous claw groove need to meet the following conditions:

[0020] When the pin hole is closer to the middle of the porous claw groove, the diameter of the pin hole is smaller than the pin holes near the two ends of the porous claw groove.

[0021] Optionally, the pins in the pin holes at both ends of the porous claw groove need to meet the following conditions:

[0022] When the pin is located at any end of the porous claw groove, the hardness of the pin is greater than that of other pins except those located at the other end of the pin.

[0023] Optionally, the pins in the pin holes not located at the two ends of the porous claw groove need to meet the following conditions:

[0024] The closer the pin is to the middle of the porous claw groove, the smaller the hardness of the pin is than that of the pins near the two ends of the porous claw groove.

[0025] Optionally, an annular clamp is provided at a position of the first extending claw close to the first hub and / or an annular clamp is provided at a position of the second extending claw close to the second hub.

[0026] Optionally, when the annular clamp is installed on the first extension claw, the annular clamp covers at least one pin hole in each porous claw groove on the first extension claw;

[0027] When the annular clamp is installed on the second extension claw, the annular clamp covers at least one pin hole in each porous claw groove on the second extension claw.

[0028] The present invention has the following beneficial effects:

[0029] The high-torque and high-elasticity coupling proposed in the present invention can realize that a plurality of pins can be arranged in each porous claw groove in the axial direction to help transmit torque, thereby realizing the transmission of large torque through the porous claw grooves formed by the first extension claw and the second extension claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a high-torque and high-elastic coupling proposed by the present invention;

[0031] Figure 2 for Figure 1 A schematic structural diagram of the first extension claw in the high-torque and high-elastic coupling shown;

[0032] Figure 3 for Figure 1 The structure diagram shown is a schematic diagram of the first extension claw and the second extension claw in the large torque and high elastic coupling when they are in an assembled state.

[0033] Legend:

[0034] 1. First extension claw; 2. Second extension claw; 3. Multi-hole claw groove; 31. Pin hole; 4. First wheel hub; 5. Second wheel hub; 6. Annular clamp. DETAILED DESCRIPTION

[0035] 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of this application, it should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] like Figures 1 to 3 The high torque and high elastic coupling shown includes multiple groups of pin groups, a first hub assembly and a second hub assembly, wherein:

[0037] Each group of pins includes at least two pins; a plurality of first extension claws 1 are provided on the first hub assembly;

[0038] The second hub assembly is provided with a plurality of second extension claws 2; wherein,

[0039] When the first hub assembly and the second hub assembly are in an assembled state, the porous claw groove 3 is formed between the circumferentially adjacent first extension claw 1 and the second extension claw 2, and the porous claw groove 3 includes a plurality of pin holes 31, and one pin group is used to be arranged in one porous claw groove, wherein one pin is used to be installed in one pin hole 31.

[0040] The high-torque and high-elasticity coupling proposed in the present invention can realize that a plurality of pins can be arranged in each porous claw groove in the axial direction to help transmit torque, thereby realizing the transmission of large torque through the porous claw grooves formed by the first extension claw and the second extension claw.

[0041] While transmitting large torque, the present application can obtain better buffering and shock absorption effect. Specifically, in order to ensure sufficient torque transmission capacity, the traditional single claw groove has certain requirements on the hardness of the elastic body. If the elastic body is too hard, the torque transmitted is large, and there is no elasticity, and the buffering and shock absorption effect is poor; if the elastic body is too soft, although it has a good buffering and shock absorption effect, the transmitted torque is small, which will lead to a large diameter of the product, and then lead to high requirements for dynamic balance, a small scope of application, and increased product processing costs.

[0042] The present application increases the number of elastomers, thereby achieving transmission of large torque through the cooperation of multiple elastomers while having the same hardness as the elastomers in the prior art.

[0043] In addition, the hardness of each elastic body of the present application can be different, so as to achieve fine-tuning between torque transmission and buffering.

[0044] In this embodiment, the first hub assembly further includes a first hub 4 , on one end of which a first extension claw 1 is provided; the second hub assembly further includes a second hub 5 , on one end of which a second extension claw 2 is provided.

[0045] In this embodiment, the first extension claw 1 includes an annular sleeve, and the first extension claw 1 is connected to the first hub 4 through the annular sleeve.

[0046] In this embodiment, the second extension claw 2 includes an annular sleeve, and the first extension claw 2 is connected to the second hub 5 via the annular sleeve.

[0047] In this embodiment, the structure of each first extension claw 1 includes: the first extension claw 1 extends from the first hub direction to the second hub direction, and the extended part can be called a first extension part, and a plurality of first grooves are arranged on the first extension part;

[0048] The structure of each of the second extension claws includes: the second extension claw extends from the direction of the second hub to the direction of the first hub, and the extended part can be called a second extension part, and a plurality of second grooves are arranged on the second extension part; wherein a first groove and a second groove are arranged opposite to each other to form a pin hole 31, and each pin hole constitutes the porous claw groove 3.

[0049] In this embodiment, in each group of pins, at least two pins have different diameters and / or at least two pins have different hardnesses.

[0050] It is understandable that, since the diameters of the pins are different, the diameters of the pin holes may also be different.

[0051] In this way, by adjusting the diameter of different pins or the hardness of the pins, the effectiveness of different torque transmission and the buffering and shock absorbing effect during the torque transmission process can be adjusted according to one's own needs.

[0052] In this embodiment, when the number of pin holes in a porous claw groove exceeds three, the pin holes at both ends of the porous claw groove need to meet the following conditions:

[0053] When the pin hole is located at any end of the porous claw groove, the diameter of the pin hole is larger than the diameter of other pin holes except those located at the other end of the pin hole.

[0054] In this embodiment, when the number of the pin holes in one of the porous claw grooves exceeds three, the pin holes that are not located at the two ends of the porous claw groove need to meet the following conditions:

[0055] When the pin hole is closer to the middle of the porous claw groove, the diameter of the pin hole is smaller than the pin holes near the two ends of the porous claw groove.

[0056] In this way, the hardness of the two ends with large diameters can be set relatively small, that is, the pin is soft and has good elasticity; while the diameter in the middle is designed to be small, but the hardness is high; this can achieve a combination of soft and hard. That is, at the beginning of the start, the softer pins at both ends contact first and undergo a large extrusion deformation. When the deformation reaches a certain degree, the middle pin begins to contact, and the middle pin has a high hardness and can transmit a large torque.

[0057] In this embodiment, the pins in the pin holes at both ends of the porous claw groove need to meet the following conditions:

[0058] When the pin is located at any end of the porous claw groove, the hardness of the pin is greater than that of other pins except those located at the other end of the pin.

[0059] In this embodiment, the pins in the pin holes that are not located at the two ends of the porous claw groove need to meet the following conditions:

[0060] The closer the pin is to the middle of the porous claw groove, the smaller the hardness of the pin is than that of the pins near the two ends of the porous claw groove.

[0061] The advantage of this method is that it can provide a good buffering and shock absorption effect while ensuring that a sufficiently large torque is transmitted. The method of achieving this is that the external soft large column pin transmits the torque first, and if the torque is insufficient under large deformation, the harder column pin will continue to share the torque.

[0062] See also Figure 3In this embodiment, an annular clamp 6 is provided at a position of the first extension claw close to the first hub and / or an annular clamp 6 is provided at a position of the second extension claw close to the second hub.

[0063] In this embodiment, since the first extension claw and the second extension claw of the present application are relatively long, in order to prevent the extension claw from becoming a cantilever beam (ie, to prevent it from being easily broken), an annular clamp 6 is provided to connect the extension claws.

[0064] It can be understood that a plurality of annular clamps 6 can be arranged in the axial direction of the first extending claw and the second extending claw.

[0065] In this embodiment, when the annular clamp is installed on the first extension claw, the annular clamp 6 covers at least one pin hole 31 in each porous claw groove 3 on the first extension claw;

[0066] When the annular clamp is installed on the second extension claw, the annular clamp 6 covers at least one pin hole 31 in each porous claw groove 3 on the second extension claw.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 protection scope of the present invention.

Claims

1. A high-torque and high-elastic coupling, characterized in that: The high torque and high elastic coupling comprises: A plurality of pin groups, each pin group comprising at least two pins; A first hub assembly, wherein a plurality of first extension claws (1) are arranged on the first hub assembly; A second hub assembly, wherein the second hub assembly is provided with a plurality of second extension claws (2); wherein: When the first hub assembly and the second hub assembly are in an assembled state, the porous claw groove (3) is formed between the circumferentially adjacent first extension claw (1) and the second extension claw (2), the porous claw groove (3) comprising a plurality of pin holes (31), one pin group being used to be arranged in one porous claw groove, wherein one pin is used to be installed in one pin hole (31).

2. The high torque and high elastic coupling according to claim 1, characterized in that: The first hub assembly further comprises a first hub (4), one end of which is provided with the first extension claw (1); The second hub assembly further comprises a second hub (5), and the second extension claw (2) is arranged on one end of the second hub close to the first hub (4).

3. The high torque and high elastic coupling according to claim 2, characterized in that: The structure of each first extension claw (1) comprises: the first extension claw (1) extends from the first hub direction to the second hub direction, the extended part is called a first extension part, and a plurality of first grooves are arranged on the first extension part; The structure of each second extension claw comprises: the second extension claw (2) extends from the second hub direction to the first hub direction, the extended part can be called a second extension part, and a plurality of second grooves are arranged on the second extension part; wherein a first groove and a second groove are arranged opposite to each other to form a pin hole (31), and each pin hole constitutes the multi-porous claw groove (3).

4. The high torque and high elastic coupling according to claim 3, characterized in that: In each group of pins, at least two of the pins have different diameters and / or at least two of the pins have different hardnesses.

5. The high torque and high elastic coupling according to claim 3 or 4, characterized in that: When the number of the pin holes in one of the porous claw grooves exceeds three, the pin holes at both ends of the porous claw groove need to meet the following conditions: When the pin hole is located at any end of the porous claw groove, the diameter of the pin hole is larger than the diameter of other pin holes except those located at the other end of the pin hole.

6. The high torque and high elastic coupling according to claim 5, characterized in that: When the number of the pin holes in one of the porous claw grooves exceeds three, the pin holes not located at the two ends of the porous claw groove need to meet the following conditions: When the pin hole is closer to the middle of the porous claw groove, the diameter of the pin hole is smaller than the pin holes near the two ends of the porous claw groove.

7. The high torque and high elastic coupling according to claim 4, characterized in that: The pins in the pin holes at both ends of the porous claw groove need to meet the following conditions: When the pin is located at any end of the porous claw groove, the hardness of the pin is greater than that of other pins except those located at the other end of the pin.

8. The high-torque and high-elastic coupling according to claim 7, characterized in that: The pins in the pin holes that are not located at the two ends of the porous claw groove need to meet the following conditions: The closer the pin is to the middle of the porous claw groove, the smaller the hardness of the pin is than that of the pins near the two ends of the porous claw groove.

9. The high-torque and high-elastic coupling according to any one of claims 1 to 8, characterized in that: An annular clamp (6) is provided at a position of the first extending claw close to the first hub and / or an annular clamp (6) is provided at a position of the second extending claw close to the second hub.

10. The high torque and high elastic coupling according to claim 9, characterized in that: When the annular clamp is installed on the first extension claw, the annular clamp (6) covers at least one pin hole (31) in each porous claw groove (3) on the first extension claw; When the annular clamp is installed on the second extending claw, the annular clamp (6) covers at least one pin hole (31) in each porous claw groove (3) located on the second extending claw.

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