Clutch cam assembly easy to assemble and used for electric hammer

Abstract

The utility model provides an easy-to-assemble clutch cam assembly for an electric hammer, and relates to the technical field of cam assemblies, the easy-to-assemble clutch cam assembly comprises a cam body, the inner wall of the cam body is rotatably connected with a rotating shaft, one side of the cam body is fixedly connected with a sleeve, and the outer surface of the rotating shaft is rotatably connected with the inner wall of the sleeve. A rotating shaft is arranged at one end of the cam body, a bevel gear is fixedly connected to one end of the rotating shaft, an auxiliary fixing device is arranged on the outer surface of the other end of the rotating shaft and comprises an auxiliary plate, and one side of the auxiliary plate is fixedly connected with one side of the cam body. The threaded rod can drive the clamping plates to move on one side of the auxiliary block, when the outer surfaces of the two clamping plates are attached to the outer surface of the rotating shaft, the clamping plates can be lifted down in advance without hindering rotation of the rotating shaft, the rotating shaft is limited, and the problem that the normal transmission capacity of the rotating shaft is affected due to the fact that the rotating shaft possibly shakes during rotation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cam components, in particular to an easy-to-assemble clutch cam component for an electric hammer. Background Art

[0002] The electric hammer clutch is an important component of the electric hammer. Its main function is to control the movement of the electric hammer, adjust its speed and knocking frequency, so as to adapt to different operating requirements. At the same time, the electric hammer clutch also has the function of protecting the electric hammer host and the operator. It can control the speed and knocking frequency of the electric hammer to avoid overload and damage to the electric hammer host.

[0003] The rotating shaft of the electric hammer clutch is directly connected to the inner wall of the bearing. During the continuous rotation of the rotating shaft, the outer surface of the rotating shaft will inevitably wear, causing a gap between the rotating shaft and the cam. This may cause the rotating shaft to shake during rotation, which will affect the normal transmission capacity of the rotating shaft and reduce energy utilization efficiency. Utility Model Content

[0004] The utility model proposes an easy-to-assemble clutch cam assembly for an electric hammer to solve the problem that the outer surface of the rotating shaft will inevitably wear out during the continuous rotation of the rotating shaft, which will cause a gap between the rotating shaft and the cam, affecting the normal transmission capacity of the rotating shaft and reducing the energy utilization efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an easy-to-assemble clutch cam assembly for an electric hammer, comprising a cam body, the inner wall of the cam body is rotatably connected to a rotating shaft, one side of the cam body is fixedly connected to a sleeve, the outer surface of the rotating shaft is rotatably connected to the inner wall of the sleeve, one end of the rotating shaft is fixedly connected to a bevel gear, and the outer surface of the other end of the rotating shaft is provided with an auxiliary fixing device, the auxiliary fixing device comprises an auxiliary plate, one side of the auxiliary plate is fixedly connected to one side of the cam body, the outer surface of the rotating shaft is inserted into the inner wall of the auxiliary plate, both sides of the auxiliary plate are fixedly connected with extension blocks, the inner wall of the extension block is rotatably connected to a threaded barrel, the inner wall of the threaded barrel is threadedly connected to a threaded rod, one end of the threaded rod is provided with a clamping plate, and a convenient disassembly and assembly device is provided between the threaded rod and the clamping plate.

[0006] The effect achieved by the above-mentioned components is: by setting two clamping plates, under the action of the threaded barrel and the threaded rod, the threaded barrel is rotated, and the threaded barrel will drive the threaded rod to extend and retract on the inner wall of the threaded barrel. During the extension and retraction process, the threaded rod will drive the clamping plate to move on one side of the auxiliary plate. When the outer surfaces of the two clamping plates are in contact with the outer surface of the rotating shaft, the rotating shaft can be limited in advance without hindering the rotation of the rotating shaft, which is beneficial to prevent the rotating shaft from shaking during rotation and affecting the normal transmission capacity of the rotating shaft.

[0007] Preferably, a slider is fixedly connected to one side of the clamping plate, a sliding groove is symmetrically provided on one side of the auxiliary plate, and an outer surface of the slider is slidably connected to an inner wall of the sliding groove.

[0008] The effect achieved by the above components is: by setting the slider and the slide groove, the clamping plate can be limited, so that the clamping plate is more stable when moving.

[0009] Preferably, the ends of the two threaded rods that are away from each other are fixedly connected to an operating block, and the outer surface of the operating block is provided with a protrusion.

[0010] The effect achieved by the above components is: by setting the operating block, rotating the operating block can drive the threaded rod to rotate, and at the same time, the outer surface of the operating block is provided with a protrusion, which can effectively increase the friction force of the outer surface of the operating block, and has an anti-slip effect when rotating the operating block, thereby facilitating the rotation of the threaded rod through the operating block.

[0011] Preferably, a curved panel is provided on one side of the two clamping plates that are close to each other, and one side of the curved panel abuts against one side of the clamping plates.

[0012] The effect achieved by the above components is: by providing an arc panel, instead of one side of the clamping plate being in contact with the outer surface of the shaft, the contact area with the shaft can be increased, thereby improving the limiting ability of the clamping plate.

[0013] Preferably, three circular hole blocks are evenly and fixedly connected to the top of the curved panel, and the circular hole blocks and the clamping plate are fixedly connected by bolts.

[0014] The effect achieved by the above components is: by setting the circular hole block, the clamping plate and the arc panel can be fixed by bolts, and it is also convenient to disassemble the arc panel, so that the worn arc panel can be replaced.

[0015] Preferably, the convenient disassembly and assembly device comprises a clamping block, one side of which is fixedly connected to one end of the threaded rod, one side of the clamping plate is fixedly connected to a clamping ring, and the outer surface of the clamping block is inserted into the inner wall of the clamping ring.

[0016] The effect achieved by the above components is: by setting the clamping ring and the clamping block, the clamping block is inserted into the inner wall of the clamping ring, the clamping ring can limit the clamping block, and then the threaded rod and the clamping plate can be connected, and it is also convenient to disassemble and maintain the clamping plate.

[0017] Preferably, a threaded pin is inserted into the inner wall of the clamping block, and one end of the threaded pin is fixedly connected to one side of the clamping plate.

[0018] The effect achieved by the above components is: by arranging the threaded rod and inserting the threaded rod into the inner wall of the block, the block can be further limited.

[0019] Preferably, a nut is provided on the outer surface of the threaded pin, and the outer surface of the threaded pin is threadedly inserted into the inner wall of the nut.

[0020] The effect achieved by the above-mentioned components is: by setting the nut, the nut is sleeved on one end of the threaded pin, and the nut is rotated so that one side of the nut abuts against one side of the block, the nut can limit the threaded pin and the block, which is helpful to prevent the threaded pin from detaching from the inner wall of the block.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, two clamping plates are arranged. Under the action of the threaded rod, the threaded rod can drive the clamping plates to move on one side of the auxiliary plate. When the outer surfaces of the two clamping plates are in contact with the outer surface of the rotating shaft, the rotating shaft can be limited in advance without hindering the rotation of the rotating shaft, which is beneficial to prevent the rotating shaft from shaking during rotation and affecting the normal transmission capacity of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the main body of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the rotating shaft of the utility model;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the cam body of the utility model;

[0026] Figure 4 It is an enlarged three-dimensional structural schematic diagram of point A in FIG3 of the present invention.

[0027] Legend: 1. Cam body; 2. Rotating shaft; 3. Sleeve; 4. Bevel gear; 5. Auxiliary fixing device; 51. Auxiliary plate; 52. Extension block; 53. Threaded cylinder; 54. Threaded rod; 55. Clamp; 56. Slider; 57. Slide groove; 58. Operating block; 59. Arc panel; 510. Round hole block; 6. Convenient disassembly and assembly device; 61. Block; 62. Snap ring; 63. Threaded pin; 64. Nut. DETAILED DESCRIPTION

[0028] Example 1, reference Figure 1-Figure 4As shown, this embodiment discloses an easy-to-assemble clutch cam assembly for an electric hammer, comprising a cam body 1, the inner wall of the cam body 1 is rotatably connected to a rotating shaft 2, one side of the cam body 1 is fixedly connected to a sleeve 3, the outer surface of the rotating shaft 2 is rotatably connected to the inner wall of the sleeve 3, one end of the rotating shaft 2 is fixedly connected to a bevel gear 4, and the outer surface of the other end of the rotating shaft 2 is provided with an auxiliary fixing device 5, the auxiliary fixing device 5 includes an auxiliary plate 51, one side of the auxiliary plate 51 is connected to the cam body 1 The outer surface of the rotating shaft 2 is inserted into the inner wall of the auxiliary plate 51, and the two sides of the auxiliary plate 51 are fixedly connected with an extension block 52. The inner wall of the extension block 52 is rotatably connected with a threaded cylinder 53. The inner wall of the threaded cylinder 53 is threadedly connected with a threaded rod 54. One end of the threaded rod 54 is provided with a clamping plate 55, and a convenient disassembly and assembly device 6 is provided between the threaded rod 54 and the clamping plate 55. By setting two clamping plates 55, under the action of the threaded cylinder 53 and the threaded rod 54, the threaded cylinder 53 is rotated, and the threaded cylinder 53 will drive the threaded rod 54 to retract on the inner wall of the threaded cylinder 53. The threaded rod 54 will drive the clamping plate 55 to move on one side of the auxiliary plate 51 during the retraction process. When the outer surfaces of the two clamping plates 55 are in contact with the outer surface of the rotating shaft 2, the rotating shaft 2 can be limited in advance without hindering the rotation of the rotating shaft 2, which is beneficial to prevent the rotating shaft 2 from shaking during rotation, affecting the normal transmission capacity of the rotating shaft 2.

[0029] Reference Figure 3 and Figure 4 As shown, a slider 56 is fixedly connected to one side of the splint 55, and a slide groove 57 is symmetrically provided on one side of the auxiliary plate 51. The outer surface of the slider 56 is slidably connected to the inner wall of the slide groove 57. By setting the slider 56 and the slide groove 57, the splint 55 can be limited, so that the splint 55 is more stable when moving; the ends of the two threaded rods 54 that are away from each other are fixedly connected to an operating block 58, and the outer surface of the operating block 58 is provided with a protrusion. By providing the operating block 58, rotating the operating block 58 can drive the threaded rod 54 to rotate. At the same time, the outer surface of the operating block 58 is provided with a protrusion, which can effectively increase the friction force of the outer surface of the operating block 58, and has an anti-slip effect when the operating block 58 is rotated, thereby facilitating the rotation of the threaded rod 54 through the operating block 58.

[0030] Reference Figure 3 and Figure 4As shown, an arc panel 59 is provided on one side of the two clamps 55 that are close to each other, and one side of the arc panel 59 is in contact with one side of the clamp 55. By providing the arc panel 59, instead of one side of the clamp 55 being in contact with the outer surface of the rotating shaft 2, the contact area with the rotating shaft 2 can be increased, thereby improving the limiting ability of the clamp 55; three circular hole blocks 510 are evenly fixedly connected to the top of the arc panel 59, and the circular hole blocks 510 and the clamp 55 are fixedly connected by bolts. By providing the circular hole blocks 510, the clamp 55 and the arc panel 59 can be fixed by bolts, and it is also convenient to disassemble the arc panel 59, thereby replacing the worn arc panel 59.

[0031] Reference Figure 3 and Figure 4 As shown, the convenient disassembly and assembly device 6 includes a block 61, one side of the block 61 is fixedly connected to one end of the threaded rod 54, and one side of the clamping plate 55 is fixedly connected with a clamping ring 62. The outer surface of the block 61 is inserted into the inner wall of the clamping ring 62. By setting the clamping ring 62 and the block 61, the block 61 is inserted into the inner wall of the clamping ring 62. The clamping ring 62 can limit the block 61, and then the threaded rod 54 and the clamping plate 55 can be connected, and it is also convenient for disassembly and maintenance of the clamping plate 55.

[0032] Reference Figure 3 and Figure 4 As shown, a threaded pin 63 is inserted into the inner wall of the block 61, and one end of the threaded pin 63 is fixedly connected to one side of the clamp 55. By setting the threaded pin 63 and inserting the threaded pin 63 into the inner wall of the block 61, the block 61 can be further limited; a nut 64 is provided on the outer surface of the threaded pin 63, and the outer surface of the threaded pin 63 is threadedly inserted into the inner wall of the nut 64. By setting the nut 64, the nut 64 is sleeved on one end of the threaded pin 63, and the nut 64 is rotated so that one side of the nut 64 abuts against one side of the block 61, then the nut 64 can limit the threaded pin 63 and the block 61, which is beneficial to prevent the threaded pin 63 from escaping from the inner wall of the block 61.

[0033] Working principle: when it is necessary to limit the rotation shaft 2, the operating block 58 is rotated, the operating block 58 will drive the threaded tube 53 to rotate, and the threaded tube 53 will drive the threaded rod 54 to extend and retract on the inner wall of the threaded tube 53. Under the limitation of the slider 56 and the slide groove 57, the threaded rod 54 will drive the clamping plate 55 to move on one side of the auxiliary plate 51 during the extension and retraction process. When the arc plate 59 on one side of the two clamping plates 55 fits with the outer surface of the rotation shaft 2, the rotation shaft 2 can be limited in advance without hindering the rotation of the rotation shaft 2, which is helpful to prevent the rotation shaft 2 from shaking during rotation and affecting the normal transmission capacity of the rotation shaft 2; when it is necessary to connect the clamping plate 55 and the threaded rod 54, the clamping block 61 is inserted into the inner wall of the clamping ring 62, and the threaded pin 63 is inserted into the inner wall of the clamping block 61, the clamping block 61 is limited, and then the nut 64 is sleeved on one end of the threaded pin 63, and the nut 64 is rotated so that one side of the nut 64 abuts against one side of the clamping block 61.

Claims

1. An easy-to-assemble clutch cam assembly for an electric hammer, comprising a cam body (1), characterized in that: The inner wall of the cam body (1) is rotatably connected to a rotating shaft (2), one side of the cam body (1) is fixedly connected to a sleeve (3), the outer surface of the rotating shaft (2) is rotatably connected to the inner wall of the sleeve (3), one end of the rotating shaft (2) is fixedly connected to a bevel gear (4), and the outer surface of the other end of the rotating shaft (2) is provided with an auxiliary fixing device (5), the auxiliary fixing device (5) comprises an auxiliary plate (51), one side of the auxiliary plate (51) is fixedly connected to one side of the cam body (1), the outer surface of the rotating shaft (2) is inserted into the inner wall of the auxiliary plate (51), both sides of the auxiliary plate (51) are fixedly connected to extension blocks (52), the inner wall of the extension block (52) is rotatably connected to a threaded cylinder (53), the inner wall of the threaded cylinder (53) is threadedly connected to a threaded rod (54), one end of the threaded rod (54) is provided with a clamping plate (55), and a convenient disassembly and assembly device (6) is provided between the threaded rod (54) and the clamping plate (55).

2. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 1, characterized in that: A slider (56) is fixedly connected to one side of the clamping plate (55), a slide groove (57) is symmetrically provided on one side of the auxiliary plate (51), and an outer surface of the slider (56) is slidably connected to an inner wall of the slide groove (57).

3. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 1, characterized in that: An operating block (58) is fixedly connected to the ends of the two threaded rods (54) that are away from each other, and a protrusion is provided on the outer surface of the operating block (58).

4. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 1, characterized in that: A curved panel (59) is provided on one side of the two clamping plates (55) that are close to each other, and one side of the curved panel (59) abuts against one side of the clamping plates (55).

5. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 4, characterized in that: Three circular hole blocks (510) are evenly and fixedly connected to the top of the curved panel (59), and the circular hole blocks (510) and the clamping plate (55) are fixedly connected by bolts.

6. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 1, characterized in that: The convenient disassembly and assembly device (6) comprises a clamping block (61), one side of which is fixedly connected to one end of the threaded rod (54), one side of the clamping plate (55) is fixedly connected to a clamping ring (62), and the outer surface of the clamping block (61) is inserted into the inner wall of the clamping ring (62).

7. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 6, characterized in that: A threaded pin (63) is inserted into the inner wall of the clamping block (61), and one end of the threaded pin (63) is fixedly connected to one side of the clamping plate (55).

8. The easy-to-assemble clutch cam assembly for an electric hammer according to claim 7, characterized in that: A nut (64) is provided on the outer surface of the threaded pin (63), and the outer surface of the threaded pin (63) is threadedly inserted into the inner wall of the nut (64).

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