Anti-moving straight chain gear

Abstract

The utility model discloses an anti-moving straight chain gear which comprises an installation mechanism, and a gear box is installed at the bottom of one side of the installation mechanism. A motor rotor is mounted on one side of the mounting mechanism, the output end of the motor rotor penetrates through the mounting mechanism and is connected with a first bevel gear, a second bevel gear is rotatably mounted in the gearbox, and a rotary positioning mechanism sleeves the output end of the motor rotor and is mounted in the mounting mechanism and used for limiting the output end of the motor rotor; and a locking mechanism is mounted in the mounting mechanism. The arrangement mode that the rotary positioning mechanism is matched with the locking mechanism is utilized, the locking mechanism is fixedly installed on the installation mechanism, the locking mechanism abuts against the rotary positioning mechanism, and the rotary positioning mechanism abuts against the first bevel gear, so that the first bevel gear cannot move in an offset mode; therefore, the correct meshing position with the second bevel gear is not changed, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of straight chain gears, in particular to a straight chain gear that can prevent movement. Background Art

[0002] In the existing bevel gear assembly structure of electric chain saws, the second bevel gear is driven by the first bevel gear. Since there is an axial clearance after the bearing and the motor rotor are fixed, during the transmission process, under the reaction force of the second bevel gear, the first bevel gear is easy to move outward, causing the first bevel gear to deviate from the correct meshing position, thereby causing tooth shaving and leading to gear transmission failure. In particular, when the first bevel gear is a plastic gear, the tooth shaving phenomenon of the first bevel gear is particularly prominent, resulting in poor meshing effect between gears. Utility Model Content

[0003] The utility model aims to provide a linear gear for preventing movement, so as to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a linear gear for preventing movement, comprising:

[0005] A mounting mechanism, wherein a gear box is mounted at the bottom of one side of the mounting mechanism, and the gear box is vertically arranged with the mounting mechanism;

[0006] A motor rotor is installed on one side of the mounting mechanism, and the output end of the motor rotor is connected with a first bevel gear through the mounting mechanism. A second bevel gear is rotatably installed inside the gear box, and the first bevel gear is meshed with the second bevel gear. A rotation positioning mechanism is sleeved on the output end of the motor rotor, and the rotation positioning mechanism is installed inside the mounting mechanism to limit the output end of the motor rotor. A locking mechanism is installed inside the mounting mechanism, and the locking mechanism is used to press and limit the rotation positioning mechanism.

[0007] Preferably, a positioning nut is threadedly sleeved on the end of the output end of the motor rotor, and the positioning nut is used to position the first bevel gear.

[0008] Preferably, the mounting mechanism comprises:

[0009] A mounting seat, wherein the motor rotor is mounted on one side of the mounting seat;

[0010] The machine cover is mounted on the other side of the mounting seat through a locking member.

[0011] Preferably, an axial hole is opened in the middle of the machine cover, and the axial hole is arranged in a stepped manner, and the output end of the motor rotor is rotatably interlaced with the inner cavity of the axial hole.

[0012] Preferably, the rotation positioning mechanism comprises:

[0013] A bearing, wherein the bearing is mounted inside the shaft hole, and the output end of the motor rotor is rotationally connected to the mounting mechanism via a rotation positioning mechanism;

[0014] A plurality of limit blocks are installed in a circular array on the outer wall of the bearing, and a groove is provided in a circular array on the inner wall of the shaft hole, and the limit blocks cooperate with the inner cavity of the groove.

[0015] Preferably, the locking mechanism comprises:

[0016] A limiting frame, which is arranged on one side of the rotation positioning mechanism and is used for extrusion limiting of the rotation positioning mechanism;

[0017] Screws, a plurality of the screws are inserted and installed at the corners of the limiting frame, and the limiting frame is installed on the machine cover through the screws.

[0018] Preferably, the limiting frame comprises:

[0019] The locking pressure plate, the limiting frame is arranged in a circular ring shape;

[0020] An ear plate, the ear plate is installed on the outer side of the locking plate, and the ear plate is interlaced with the screw;

[0021] A pressure ring is installed on the side of the locking pressure plate facing the rotation positioning mechanism, and the pressure ring and the rotation positioning mechanism are pressed and matched with each other.

[0022] Technical effects and advantages of the utility model:

[0023] The utility model utilizes a setting mode in which a rotation positioning mechanism and a locking mechanism cooperate with each other, and by fixing the locking mechanism on the mounting mechanism, the locking mechanism supports the rotation positioning mechanism, and the rotation positioning mechanism supports the first bevel gear, so that the first bevel gear cannot perform offset movement, thereby ensuring that the correct meshing position with the second bevel gear does not change, ensuring that the first bevel gear and the second bevel gear are not shaved during the meshing process, and can effectively prevent the first bevel gear from moving outwards, thereby ensuring that the correct meshing position with the second bevel gear does not change, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 It is a schematic diagram of the internal structure of the installation mechanism of the utility model.

[0026] Figure 3 It is a schematic diagram of the overall explosion structure of the utility model.

[0027] Figure 4It is a schematic diagram of the explosion structure of the locking mechanism of the utility model.

[0028] In the figure: 1. mounting mechanism; 11. mounting seat; 12. machine cover; 121. shaft hole; 2. gear box; 3. motor rotor; 4. first bevel gear; 5. second bevel gear; 6. rotation positioning mechanism; 61. bearing; 62. limit block; 7. locking mechanism; 71. limit frame; 711. locking pressure plate; 712. ear plate; 713. pressure ring; 72. screw; 8. positioning nut. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides Figure 1-3The illustrated anti-movement straight chain gear comprises: a mounting mechanism 1, a gear box 2 is mounted at the bottom of one side of the mounting mechanism 1, the mounting mechanism 1 is used to facilitate the installation of a motor rotor 3, a rotation positioning mechanism 6 and a locking mechanism 7, the gear box 2 is used to facilitate the limiting protection of a second bevel gear 5, the gear box 2 is integrated with a machine cover 12, and the gear box 2 is vertically arranged with the mounting mechanism 1; a motor rotor 3 is mounted on one side of the mounting mechanism 1, the output end of the motor rotor 3 is connected with a first bevel gear 4 through the mounting mechanism 1, a second bevel gear 5 is rotatably mounted inside the gear box 2, the first bevel gear 4 is meshed with the second bevel gear 5, the output end of the motor rotor 3 is sleeved with a rotation positioning mechanism 6, the rotation positioning mechanism 6 is mounted inside the mounting mechanism 1 for limiting the output end of the motor rotor 3, the mounting mechanism 1 A locking mechanism 7 is installed inside, and the locking mechanism 7 is used to press and limit the rotation positioning mechanism 6. The first bevel gear 4 is driven by the motor rotor 3, and the first bevel gear 4 drives the second bevel gear 5 to transmit. During the transmission process, the second bevel gear 5 will have a reaction force applied to the first bevel gear 4, forcing the first bevel gear 4 to move offset, but because the locking mechanism 7 is fixedly installed on the mounting mechanism 1, the locking mechanism 7 supports the rotation positioning mechanism 6, and the rotation positioning mechanism 6 supports the first bevel gear 4, so that the first bevel gear 4 cannot move offset, thereby ensuring that the correct meshing position with the second bevel gear 5 does not change, ensuring that the first bevel gear 4 does not shave during the meshing process with the second bevel gear 5, and can effectively prevent the first bevel gear 4 from moving outward, thereby ensuring that the correct meshing position with the second bevel gear 5 does not change. The end of the output end of the motor rotor 3 is threadedly sleeved with a positioning nut 8, and the positioning nut 8 is used to position the first bevel gear 4, prevent the first bevel gear 4 from detaching from the output end of the motor rotor 3, and make the position of the first bevel gear 4 more stable.

[0031] Furthermore, the mounting mechanism 1 comprises: a mounting seat 11, the motor rotor 3 is mounted on one side of the mounting seat 11; and a machine cover 12, the machine cover 12 is mounted on the other side of the mounting seat 11 through a locking member, and the mounting seat 11 and the machine cover 12 are conveniently mounted after the rotation positioning mechanism 6 and the locking mechanism 7 are installed through the detachable arrangement between the mounting seat 11 and the machine cover 12. An axial hole 121 is provided in the middle of the machine cover 12, and the axial hole 121 is arranged in a stepped manner. A stepped chamber of the axial hole 121 is used to limit the installation of the rotation positioning mechanism 6, and the output end of the motor rotor 3 is rotatably interlaced with the inner cavity of the axial hole 121.

[0032] Furthermore, the rotation positioning mechanism 6 includes: a bearing 61, which is assembled inside the shaft hole 121, and the output end of the motor rotor 3 is rotationally connected to the mounting mechanism 1 through the rotation positioning mechanism 6; a limit block 62, wherein a plurality of limit blocks 62 are installed in a circular array on the outer wall of the bearing 61, and the inner wall of the shaft hole 121 is provided with a slot in a circular array, and the limit block 62 and the inner cavity of the slot cooperate with each other. Through the mutual cooperation between the limit block 62 and the slot, it is convenient to limit the inner cavity position of the bearing 61 in the shaft hole 121, to prevent the bearing 61 from rotating relative to the shaft hole 121, so that the position of the rotation positioning mechanism 6 is more stable.

[0033] Specifically, the locking mechanism 7 includes: a limit frame 71, which is arranged on one side of the rotation positioning mechanism 6 and is used to limit the extrusion of the rotation positioning mechanism 6; screws 72, multiple screws 72 are inserted and installed at the corners of the limit frame 71, and the limit frame 71 is installed on the machine cover 12 through the screws 72, so that the rotation positioning mechanism 6 can be easily limited and locked through the limit frame 71. The limiting frame 71 includes: a locking pressure plate 711, which is arranged in a circular ring shape; an ear plate 712, which is installed on the outer side of the locking pressure plate 711, and the ear plate 712 is inserted and matched with the screw 72; a pressure ring 713, which is installed on the side of the locking pressure plate 711 facing the rotation positioning mechanism 6, and the pressure ring 713 and the rotation positioning mechanism 6 are squeezed and matched with each other. The locking pressure plate 711 is used to limit the position of the rotation positioning mechanism 6, and the ear plate 712 is used to provide an insertion position for the screw 72. The pressure ring 713 is made of rubber, which is convenient for squeezing and positioning the outer ring of the bearing 61 to prevent the rotation positioning mechanism 6 from escaping from the inner cavity of the shaft hole 121, so that the position of the rotation positioning mechanism 6 is more stable.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 protection scope of the present invention.

Claims

1. A linear gear for preventing movement, comprising: A mounting mechanism (1), wherein a gear box (2) is mounted on the bottom of one side of the mounting mechanism (1), and the gear box (2) and the mounting mechanism (1) are arranged vertically; The invention is characterized in that: a motor rotor (3) is installed on one side of the mounting mechanism (1); the output end of the motor rotor (3) passes through the mounting mechanism (1) and is connected to a first bevel gear (4); a second bevel gear (5) is rotatably installed inside the gear box (2); the first bevel gear (4) is meshingly connected with the second bevel gear (5); a rotation positioning mechanism (6) is sleeved on the output end of the motor rotor (3); the rotation positioning mechanism (6) is installed inside the mounting mechanism (1) and is used to limit the output end of the motor rotor (3); a locking mechanism (7) is installed inside the mounting mechanism (1); the locking mechanism (7) is used to press and limit the rotation positioning mechanism (6).

2. The anti-movement straight chain gear according to claim 1, characterized in that: The end of the output end of the motor rotor (3) is threadedly sleeved with a positioning nut (8), and the positioning nut (8) is used to position the first bevel gear (4).

3. The anti-movement straight chain gear according to claim 1, characterized in that: The mounting mechanism (1) comprises: A mounting seat (11), wherein the motor rotor (3) is mounted on one side of the mounting seat (11); A machine cover (12), wherein the machine cover (12) is mounted on the other side of the mounting seat (11) via a locking member.

4. The anti-movement straight chain gear according to claim 3, characterized in that: An axial hole (121) is provided in the middle of the machine cover (12), and the axial hole (121) is arranged in a stepped manner. The output end of the motor rotor (3) is rotatably interlaced with the inner cavity of the axial hole (121).

5. The anti-movement straight chain gear according to claim 4, characterized in that: The rotation positioning mechanism (6) comprises: A bearing (61), wherein the bearing (61) is mounted inside the shaft hole (121), and the output end of the motor rotor (3) is rotationally connected to the mounting mechanism (1) via a rotation positioning mechanism (6); A plurality of limit blocks (62) are installed in a circular array on the outer wall of the bearing (61); the inner wall of the shaft hole (121) is provided with a groove in a circular array; the limit blocks (62) cooperate with the inner cavity of the groove.

6. The anti-movement straight chain gear according to claim 1, characterized in that: The locking mechanism (7) comprises: A limiting frame (71), the limiting frame (71) being arranged on one side of the rotation positioning mechanism (6) and being used for extrusion limiting of the rotation positioning mechanism (6); Screws (72), a plurality of the screws (72) are inserted and installed at the corners of the limiting frame (71), and the limiting frame (71) is installed on the machine cover (12) through the screws (72).

7. The anti-movement straight chain gear according to claim 6, characterized in that: The limiting frame (71) comprises: A locking pressure plate (711), wherein the limiting frame (71) is arranged in a circular ring shape; An ear plate (712), the ear plate (712) is installed on the outer side of the locking pressure plate (711), and the ear plate (712) is inserted and matched with the screw (72); A pressure ring (713) is installed on the side of the locking pressure plate (711) facing the rotation positioning mechanism (6), and the pressure ring (713) and the rotation positioning mechanism (6) are mutually pressed and matched.

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