Coupler connecting key

Abstract

The utility model discloses a coupling connecting key which comprises a connecting key body, a plurality of grooves are formed in the surface of one side of the connecting key body, and internal threads are arranged on the inner walls of the grooves. The connecting key further comprises a plurality of jackscrews, the jackscrews are in threaded connection with the grooves, an oil groove is formed in the surface of the other side of the connecting key body, an oil injection opening is formed in the end of the connecting key body, and the oil injection opening is connected with the oil groove through an oil guide channel. The jackscrew partially protrudes out of the groove after the jackscrew is displaced through the thread, so that the overall thickness of the connecting key body is changed, the depth of a coupling key groove is more matched with the thickness of the connecting key, when a coupling is pressurized and contracted, the enclasping effect is better, the transmission effect is improved, oil is added into an oil injection port and enters the oil groove through the oil guide channel, and the oil injection efficiency is improved. The friction force and tension between the surface of the connecting key and the coupling key groove are reduced through oil liquid, and disassembly and separation of the connecting key and the coupling key groove are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling connecting key. Background Art

[0002] Couplings are also called couplings. They are mechanical parts used to firmly connect the driving shaft and the driven shaft in different mechanisms so that they rotate together and transmit motion and torque. Sometimes they are also used to connect shafts with other parts (such as gears, pulleys, etc.). They are usually composed of two halves, which are connected by connecting keys and fastened to the two ends of the shaft, and then connected in some way.

[0003] In the prior art, the connection key still has the following problems during use: 1. The thickness of the connection key is fixed, but there is a certain tolerance between the depth of the coupling keyway and the thickness of the connection key, so there will be an assembly gap. When the coupling is pressurized and contracted, the clamping effect is not good, and it may slip, affecting the transmission effect. 2. After the hydraulic coupling is depressurized, the connection key may be connected to the coupling keyway with tension and friction, which may make it difficult to separate, affecting the normal disassembly operation. Utility Model Content

[0004] The purpose of the utility model is to provide a connecting key to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a coupling connecting key, including a connecting key body, a plurality of grooves are provided on one side surface of the connecting key body, and an inner wall of the groove is provided with an internal thread; it also includes a plurality of top screws, the top screws are provided with external threads and are threadedly connected to the grooves, an oil groove is provided on the other side surface of the connecting key body, an oil filling port is provided at the end of the connecting key body, and the oil filling port and the oil groove are connected through an oil guide channel.

[0006] By adopting the above technical scheme, when there is an assembly gap between the depth of the coupling keyway and the thickness of the connecting key, multiple top screws are screwed, and the top screws partially protrude from the groove after thread displacement, thereby changing the overall thickness of the connecting key body, so that the depth of the coupling keyway and the thickness of the connecting key are more adapted, and the clamping effect is better when the coupling is pressurized and contracted, thereby improving the transmission effect, and oil is added to the oil filling port, and the oil enters the oil tank through the oil guide channel. The oil reduces the friction and tension between the surface of the connecting key and the coupling keyway, thereby facilitating the disassembly and separation of the two.

[0007] As a further optimization of the present invention, the two ends of the connecting key body include a first end and a second end, the first end is arranged in an arc shape, and the oil filling port is arranged at the second end.

[0008] By adopting the above technical solution, the end of the keyway is set to an arc shape. When the shape of the coupling keyway deviates from the size of the keyway, the arc not only has a large contact area, but also has a certain deformation space. It can achieve a better fault tolerance through deformation, so that the two can be better adapted.

[0009] As a further optimization of the present invention, the plurality of grooves are arranged at equal intervals along the length direction of the connecting key body.

[0010] By adopting the above technical solution, multiple grooves are arranged at equal distances. When pressurized and contracted, the connecting key body and the coupling keyway can be evenly stressed to avoid tilting caused by uneven stress.

[0011] As a further optimization of the utility model, a plug is provided in the oil filling port, and the plug is used to seal the oil guide channel.

[0012] By adopting the above technical solution, the plug can seal one end of the oil guide channel, thereby preventing the oil from flowing back.

[0013] The beneficial effects of the utility model are as follows: when there is an assembly gap between the depth of the coupling keyway and the thickness of the connecting key, multiple top screws are screwed, and the top screws partially protrude from the groove after thread displacement, thereby changing the overall thickness of the connecting key body, so that the depth of the coupling keyway and the thickness of the connecting key are more adapted, and when the coupling is pressurized and contracted, the clamping effect is better, thereby improving the transmission effect, and oil is added to the oil filling port, and the oil enters the oil tank through the oil guide channel. The oil reduces the friction and tension between the surface of the connecting key and the coupling keyway, thereby facilitating the disassembly and separation of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure from the CC perspective.

[0016] The meanings of the numbers in the figure are: 1. connecting key body; 11. first end; 12. second end; 2. groove; 3. top screw; 4. oil groove; 5. oil filling port; 6. oil guide channel; 7. plug. DETAILED DESCRIPTION

[0017] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0018] See attached Figure 1-2The embodiment disclosed in the utility model further provides: a coupling connecting key, including a connecting key body 1, a plurality of grooves 2 are provided on one side surface of the connecting key body 1, specifically, the plurality of grooves 2 are arranged at equal intervals along the length direction of the connecting key body 1, and the inner wall of the groove 2 is provided with an internal thread; and also includes a plurality of top screws 3, the top screws 3 are provided with external threads and are threadedly connected with the grooves 2;

[0019] An oil groove 4 is provided on the other side surface of the connecting key body 1, and an oil filling port 5 is provided at the end of the connecting key body 1. The oil filling port 5 is connected to the oil groove 4 through an oil guide channel 6. Furthermore, a plurality of grooves 2 are arranged at equal intervals along the length direction of the connecting key body 1.

[0020] Furthermore, two ends of the connecting key body 1 include a first end 11 and a second end 12 . The first end 11 is configured to be in an arc shape, and the oil filling port 5 is configured at the second end 12 .

[0021] The principle of the utility model is: when there is an assembly gap between the depth of the coupling keyway and the thickness of the connecting key, multiple top screws 3 are screwed by tools such as a wrench or a screwdriver, and the outer end portion of the top screw 3 can be set to a polygon, and the portion protrudes from the groove 2 after the thread displacement, so that the overall thickness of the connecting key body 1 is changed, so that the depth of the coupling keyway and the thickness of the connecting key are more adapted, and when the coupling is pressurized and contracted, the clamping effect is better, thereby improving the transmission effect;

[0022] Add oil to the oil filling port 5, and the oil enters the oil groove 4 through the oil guide channel 6. The oil reduces the friction and tension between the connection key surface and the coupling keyway, making it easier to disassemble and separate the two.

[0023] The end of the keyway is set to an arc shape. When the shape of the coupling keyway deviates from the size of the keyway, the arc not only has a large contact area, but also has a certain deformation space. It can achieve a better fault tolerance through deformation, so that the two can be better adapted.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A coupling connecting key, comprising a connecting key body (1), characterized in that: The connecting key body (1) has a plurality of grooves (2) on one side surface, and the inner wall of the groove (2) is provided with an internal thread; it also includes a plurality of top screws (3), and the top screws (3) are provided with external threads and are threadedly connected to the groove (2); the connecting key body (1) has an oil groove (4) on the other side surface, and an oil filling port (5) is provided at the end of the connecting key body (1); the oil filling port (5) and the oil groove (4) are connected via an oil guide channel (6).

2. A coupling connection key according to claim 1, characterized in that: The two ends of the connecting key body (1) include a first end (11) and a second end (12); the first end (11) is arranged in an arc shape, and the oil filling port (5) is arranged at the second end (12).

3. A coupling connection key according to claim 1, characterized in that: The plurality of grooves (2) are arranged at equal intervals along the length direction of the connecting key body (1).

4. A coupling connection key according to claim 1, characterized in that: A plug (7) is provided in the oil filling port (5), and the plug (7) is used to seal the oil guide channel (6).

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