Assembly for reducing noise of hand generator

Abstract

The utility model provides an assembly for reducing noise of a hand generator, which comprises a hand generator body, a first gear is rotatably connected in the hand generator body, a second gear is rotatably connected in the hand generator body, a gear shaft is rotatably connected in the hand generator body, and the first gear and the second gear are rotatably connected in the hand generator body. A motor shaft is arranged in the hand generator body; wherein the first gear is fixedly installed on the surface of the gear shaft, the second gear is fixedly installed on the surface of the gear shaft, the surface of the first gear is meshed with the surface of the gear shaft, and the surface of the second gear is meshed with the surface of the motor shaft. The second gear is connected between the first gear and the motor shaft in a bearing mode, the second gear is made of the bakelite material, the bakelite material is soft, vibration generated among the first gear, the second gear and the motor shaft can be effectively absorbed, and therefore noise can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hand-cranked generators, in particular to a component for reducing the noise of hand-cranked generators. Background Art

[0002] A hand-cranked generator is a power generation device that converts mechanical energy into electrical energy by manually cranking an outer rotor permanent magnet motor through a gear set to rotate at high speed. It can power or charge low-power electrical equipment, and can also directly charge lithium batteries, nickel-hydrogen batteries and other batteries.

[0003] The hand-cranked generator can be used as an emergency power source for rechargeable devices. It can be used to generate electricity for various electronic products in any corner of the world without city electricity and oil-fired power generation. It can be actively used in field battles, field operations, field surveys, rescue operations, natural disasters, survival training, emergency communications, long-term power shortages, tourism, emergency electricity use, etc.

[0004] The gear set of the existing hand-cranked generator adopts involute cylindrical gear transmission, alloy steel hobbing processing, outer surface nitriding treatment, and all transmission gears are made of alloy steel, which far meets the requirements of precision and strength. However, due to the high hardness of alloy steel, the gear set will generate higher noise during transmission.

[0005] Therefore, it is necessary to provide a component for reducing the noise of a hand-cranked generator to solve the above technical problems. Utility Model Content

[0006] The utility model provides a component for reducing the noise of a hand-cranked generator, which solves the problem that relatively high noise is generated during transmission of a gear set.

[0007] In order to solve the above technical problems, the utility model provides a component for reducing the noise of a hand-cranked generator, comprising: a hand-cranked generator body, the internal rotation of the hand-cranked generator body is connected to a first gear, and the internal rotation of the hand-cranked generator body is connected to a second gear, the internal rotation of the hand-cranked generator body is connected to a gear shaft, and a motor shaft is arranged inside the hand-cranked generator body; wherein, the second gear is fixedly mounted on the surface of the gear shaft, the surface of the first gear is meshed with the surface of the gear shaft, the surface of the second gear is meshed with the surface of the motor shaft, and the second gear is made of bakelite.

[0008] Preferably, the motor shaft is rotationally connected to the hand-cranked generator body.

[0009] Preferably, the second gear is located below the first gear, and the second gear is located above the motor shaft.

[0010] Preferably, a disassembly assembly is provided on the hand-cranked generator body, and the disassembly assembly includes a rotating part, a sealing plate is fixedly installed on the rotating part, a fixing rod is fixedly installed on one end of the sealing plate, a fixed shell is fixedly installed on the hand-cranked generator body, a transmission rod is slidably connected inside the fixed shell, one end of the transmission rod is rotatably connected to a pulling rod, a pulling spring is installed inside the fixed shell, a transmission block is fixedly installed on one end of the pulling spring, and a pushing rod is fixedly installed on the transmission block.

[0011] Preferably, the rotating member is fixedly mounted on the hand-cranked generator body, and sealing rings are fixedly mounted around the sealing plate.

[0012] Preferably, one end of the transmission rod is fixedly connected to the transmission block, and the transmission block is slidably connected to the inner surface of the fixed shell.

[0013] Preferably, a sliding groove is provided on the fixed shell, the pushing rod is located inside the sliding groove, and the pushing rod is slidably connected to the inner surface of the sliding groove.

[0014] Preferably, the pulling rod is in a zero shape, and the fixing rod is in an L shape.

[0015] Compared with the related art, the component for reducing the noise of the hand-cranked generator provided by the utility model has the following beneficial effects:

[0016] The utility model provides a component for reducing the noise of a hand-cranked generator, wherein a second gear is connected between a first gear and a motor shaft, and the second gear is made of bakelite material. Since the bakelite material is relatively soft, the vibration transmitted between the first gear, the second gear and the motor shaft can be effectively absorbed, thereby effectively reducing the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a component for reducing noise of a hand-cranked generator provided by the utility model;

[0018] Figure 2 A schematic structural diagram of a second embodiment of a component for reducing noise of a hand-cranked generator provided by the utility model;

[0019] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0020] Figure 4 for Figure 3 A perspective view of the fixed housing is shown.

[0021] Numbers in the figure: 1. hand-cranked generator body, 2. first gear, 3. second gear, 4. gear shaft, 5. motor shaft, 6. disassembly assembly, 61. rotating part, 62. sealing plate, 63. fixing rod, 64. fixing shell, 65. transmission rod, 66. pulling rod, 67. pulling spring, 68. transmission block, 69. pushing rod. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes. Example

[0023] Please refer to Figure 1 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the component for reducing the noise of a hand-cranked generator provided by the utility model. A component for reducing the noise of a hand-cranked generator comprises: a hand-cranked generator body 1, the hand-cranked generator body 1 is internally rotatably connected to a first gear 2, and the hand-cranked generator body 1 is internally rotatably connected to a second gear 3, the hand-cranked generator body 1 is internally rotatably connected to a gear shaft 4, and a motor shaft 5 is arranged inside the hand-cranked generator body 1; wherein, the second gear 3 is fixedly mounted on the surface of the gear shaft 4, the surface of the first gear 2 is meshed with the surface of the gear shaft 4, the surface of the second gear 3 is meshed with the surface of the motor shaft 5, and the second gear 3 is made of bakelite.

[0024] The characteristics of bakelite are good insulation performance, high strength and not easy to deform.

[0025] The motor shaft 5 is rotatably connected to the hand-cranked generator body 1 .

[0026] The second gear 3 is located below the first gear 2 , and the second gear 3 is located above the motor shaft 5 .

[0027] The second gear 3 is supported between the first gear 2 and the motor shaft 5 .

[0028] The working principle of the component for reducing the noise of the hand-cranked generator provided by the utility model is as follows:

[0029] When the first gear 2 rotates, it drives the gear shaft 4 to rotate. The rotation of the gear shaft 4 drives the second gear 3 to rotate. The rotation of the second gear 3 drives the motor shaft 5 to rotate.

[0030] Compared with the related art, the component for reducing the noise of the hand-cranked generator provided by the utility model has the following beneficial effects:

[0031] The second gear 3 is connected between the first gear 2 and the motor shaft 5. By setting the second gear 3 to be bakelite material, since bakelite material is relatively soft, it can effectively absorb the vibration transmitted between the first gear 2, the second gear 3 and the motor shaft 5, thereby effectively reducing noise. Example

[0032] See also Figure 2 , Figure 3 , Figure 4 Based on the component for reducing the noise of a hand-cranked generator provided in the first embodiment of the present application, the second embodiment of the present application proposes another component for reducing the noise of a hand-cranked generator. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0033] Specifically, the second embodiment of the present application provides a component for reducing the noise of a hand-cranked generator, which is different in that a disassembly component 6 is provided on the hand-cranked generator body 1, and the disassembly component 6 includes a rotating member 61, a sealing plate 62 is fixedly installed on the rotating member 61, a fixing rod 63 is fixedly installed on one end of the sealing plate 62, a fixed shell 64 is fixedly installed on the hand-cranked generator body 1, a transmission rod 65 is slidably connected inside the fixed shell 64, one end of the transmission rod 65 is rotatably connected to a pulling rod 66, a pulling spring 67 is installed inside the fixed shell 64, a transmission block 68 is fixedly installed on one end of the pulling spring 67, and a push rod 69 is fixedly installed on the transmission block 68.

[0034] The rotating member 61 is fixedly mounted on the hand-cranked generator body 1 , and sealing rings are fixedly mounted around the sealing plate 62 .

[0035] The sealing ring is used to seal between the sealing plate 62 and the hand-cranked generator body 1 to reduce the transmission of noise.

[0036] One end of the transmission rod 65 is fixedly connected to the transmission block 68 , and the transmission block 68 is slidably connected to the inner surface of the fixed shell 64 .

[0037] The movement of the transmission block 68 will drive the transmission rod 65 to move synchronously, and the pulling spring 67 always pulls the transmission block 68, so that in the absence of external force, the pulling rod 66 is always located between the fixing rod 63 and the sealing plate 62.

[0038] The fixed shell 64 is provided with a sliding groove, the push rod 69 is located inside the sliding groove, and the push rod 69 is slidably connected to the inner surface of the sliding groove.

[0039] The sliding groove is used to allow the push rod 69 to slide inside the fixed housing 64 .

[0040] The pulling rod 66 is in a zero shape, and the fixing rod 63 is in an L shape.

[0041] When the pulling rod 66 is located between the fixing rod 63 and the sealing plate 62 , the pulling rod 66 will limit the sealing plate 62 , so that the sealing plate 62 cannot rotate.

[0042] Working principle:

[0043] When it is necessary to inspect the damage of the second gear 3, pull the push rod 69 to the left. The movement of the push rod 69 to the left will drive the transmission block 68 to move to the left. The movement of the transmission block 68 to the left will drive the transmission rod 65 to move to the left. The movement of the transmission rod 65 to the left will drive the pulling rod 66 to move to the left. The movement of the pulling rod 66 to the left will make the pulling rod 66 no longer between the fixing rod 63 and the sealing plate 62. Then rotate the pulling rod 66 so that the pulling rod 66 no longer limits the fixing rod 63, so that the sealing plate 62 can be rotated to open the hand-cranked generator body 1, so that the damage of the second gear 3 can be checked conveniently and the second gear 3 can be replaced conveniently.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A component for reducing the noise of a hand-cranked generator, characterized in that: include: A hand-cranked generator body, wherein the interior of the hand-cranked generator body is rotatably connected to a first gear, and the interior of the hand-cranked generator body is rotatably connected to a second gear, the interior of the hand-cranked generator body is rotatably connected to a gear shaft, and a motor shaft is disposed inside the hand-cranked generator body; Wherein, the second gear is fixedly mounted on the surface of the gear shaft, the surface of the first gear is meshed with the surface of the gear shaft, the surface of the second gear is meshed with the surface of the motor shaft, and the second gear is made of bakelite.

2. The component for reducing the noise of a hand-cranked generator according to claim 1, characterized in that: The motor shaft is rotatably connected to the hand-cranked generator body.

3. The component for reducing the noise of a hand-cranked generator according to claim 1, characterized in that: The second gear is located below the first gear, and the second gear is located above the motor shaft.

4. The component for reducing the noise of a hand-cranked generator according to claim 1, characterized in that: A disassembly assembly is provided on the hand-cranked generator body, and the disassembly assembly includes a rotating part, a sealing plate is fixedly installed on the rotating part, a fixing rod is fixedly installed on one end of the sealing plate, a fixed shell is fixedly installed on the hand-cranked generator body, a transmission rod is slidably connected inside the fixed shell, one end of the transmission rod is rotatably connected to a pulling rod, a pulling spring is installed inside the fixed shell, a transmission block is fixedly installed on one end of the pulling spring, and a pushing rod is fixedly installed on the transmission block.

5. The component for reducing the noise of a hand-cranked generator according to claim 4, characterized in that: The rotating member is fixedly mounted on the hand-cranked generator body, and sealing rings are fixedly mounted around the sealing plate.

6. The component for reducing the noise of a hand-cranked generator according to claim 4, characterized in that: One end of the transmission rod is fixedly connected to the transmission block, and the transmission block is slidably connected to the inner surface of the fixed shell.

7. The component for reducing the noise of a hand-cranked generator according to claim 4, characterized in that: The fixed shell is provided with a sliding groove, the pushing rod is located inside the sliding groove, and the pushing rod is slidably connected to the inner surface of the sliding groove.

8. The component for reducing the noise of a hand-cranked generator according to claim 4, characterized in that: The pulling rod is in a zero shape, and the fixing rod is in an L shape.

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