Gear clamping and locking mechanism

Abstract

The utility model discloses a gear clamping and locking mechanism which comprises a main body mechanism. The main body mechanism comprises a gear main body, first friction plates installed on the two sides of the gear main body in a threaded connection mode, a support arranged on one side of the gear main body, shells symmetrically fixed to the ends of the support, movable pieces movably arranged in inner cavities of the shells, and second friction plates installed at the ends of the movable pieces in a threaded connection mode. The cylinder is fixed to one side of the support, the compression part is installed on one side of the cylinder and extends into the cylinder, the connecting pipes are installed on the two sides of the support, the gear body is installed in the reduction gearbox and used for transmitting power, and the first friction plate is used for being matched with the second friction plate to limit the gear body, so that it is guaranteed that the gear body can stop rotating during shutdown; the gear clamping and locking mechanism has the advantages of preventing the gear from rotating along with inertia after shutdown and being high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction box gears, in particular to a gear locking mechanism. Background Art

[0002] A gear reducer is a device that amplifies the torque of a power machine, and the core mechanism of the gear reducer is mainly to mesh gears of different tooth diameters with each other to change the ratio of input and output torque to complete the deceleration operation. Therefore, in the application process, the gearbox not only plays the role of transmitting torque, but also plays the role of changing the output torque due to the deceleration effect of the gear. However, in the application process, the gearbox is connected to the power machine, so when the machine is stopped, the inertia of the load will also be transmitted to the output shaft of the power machine through the reverse action of the reduction gear, causing the output shaft to continue to rotate for a period of time after the machine is stopped, which will not only cause excessive wear of the output shaft, but the potential energy of this residual motion will easily cut the magnetic field of the power machine's rotation, causing circuit damage to the power mechanism and other problems. Therefore, a gear locking mechanism is urgently needed to ensure the stability of the gear when it is stopped. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted by the utility model is: a gear locking mechanism, including: a main body mechanism, the main body mechanism includes a gear body, a first friction plate installed on both sides of the gear body through a threaded connection, a bracket arranged on one side of the gear body, a shell symmetrically fixed at the end of the bracket, a movable part movably arranged in the inner cavity of the shell and the end of the shell extending out of the shell, a second friction plate installed at the end of the movable part through a threaded connection, a cylinder fixed on one side of the bracket, a compression part installed on one side of the cylinder and extending into the cylinder, and connecting pipes installed on both sides of the bracket.

[0005] The inner cavity of the bracket is provided with a flow channel connected with the inner cavity of the cylinder. One end of the connecting pipe is connected with the inner cavity of the shell, and the other end is connected with the end of the flow channel. The inner cavity of the cylinder is filled with hydraulic oil.

[0006] In a preferred example, the utility model can be further configured as follows: a plurality of first thread grooves are formed in an annular array on both sides of the gear body, a plurality of first bolts are formed in an annular array on one side of the first friction plate, and the first bolts pass through the first friction plate and engage in the first thread groove.

[0007] In a preferred example, the utility model can be further configured as follows: the movable part includes a first piston movably arranged in the inner cavity of the shell, a column with one end fixed on the piston and the other end extending out of the shell, and a spring connecting the first piston and the inner bottom wall of the shell.

[0008] In a preferred example, the utility model can be further configured as follows: a second thread groove is formed at the end of the column, a second bolt is disposed on one side of the second friction plate, and the second bolt passes through the second friction plate and engages in the second thread groove.

[0009] In a preferred example, the utility model can be further configured as follows: the compression member includes a second piston movably arranged in the inner cavity of the cylinder and an electric telescopic rod installed on one side of the cylinder and with its end extending into the inner cavity of the cylinder and fixedly connected to the second piston.

[0010] In a preferred example, the utility model can be further configured as follows: the bracket is fixed on the inner wall of the gear box body of the reducer.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] 1. In the utility model, a first friction plate is installed on both sides of a gear body, and a bracket is arranged on one side of the gear body, a shell is arranged at both ends of the bracket, a movable part with an end extending out of the shell is arranged in the inner cavity of the shell, and a second friction plate is installed at the end of the movable part, a cylinder is installed on one side of the bracket, and a compression member is arranged, and the inner cavity of the cylinder is filled with hydraulic oil. When the gear body stops rotating, the compression member is started to press the hydraulic oil in the cylinder into the shell through the connecting pipe. As the pressure in the shell increases, the movable part is driven to move outward, that is, the second friction plate is driven to be close to the first friction plate, and the gear body is limited by the action of friction, ensuring that the gear body can stop rotating immediately when it stops, thereby improving the practical performance.

[0013] 2. In the utility model, the first friction plate is fixed to the gear body by the first bolt, and the second friction plate is fixed to the end of the movable part by the second bolt, which is convenient for installation and disassembly, and increases the convenience of replacing the first friction plate and the second friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the exploded structure of the first friction plate of the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial structural cross-sectional schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the exploded structure of the second friction plate of the utility model.

[0019] Reference numerals:

[0020] 100. Main body; 110. Gear body; 111. First thread groove; 120. First friction plate; 121. First bolt; 130. Bracket; 131. Flow channel; 140. Housing; 150. Movable part; 151. First piston; 152. Column; 1521. Second thread groove; 153. Spring; 160. Second friction plate; 161. Second bolt; 170. Cylinder; 180. Compression part; 181. Second piston; 182. Electric telescopic rod; 190. Connecting pipe. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Embodiment 1

[0023] Combination Figure 1-5 As shown, this embodiment provides a gear locking mechanism, including: a main body mechanism 100

[0024] The main mechanism 100 includes a gear body 110, a first friction plate 120 installed on both sides of the gear body 110 through a threaded connection, a bracket 130 arranged on one side of the gear body 110, a shell 140 symmetrically fixed at the end of the bracket 130, a movable part 150 movably arranged in the inner cavity of the shell 140 and the end of the shell 140 extends out of the shell 140, a second friction plate 160 installed at the end of the movable part 150 through a threaded connection, a cylinder 170 fixed on one side of the bracket 130, a compression member 180 installed on one side of the cylinder 170 and extending into the cylinder 170, and a connecting pipe 190 installed on both sides of the bracket 130.

[0025] The gear body 110 is installed in the reduction box for transmitting power. The first friction plate 120 is used to cooperate with the second friction plate 160 to limit the gear body 110 to ensure that the gear body 110 can stop rotating when shutting down.

[0026] A plurality of first thread grooves 111 are provided in a circular array on both sides of the gear body 110, and a plurality of first bolts 121 are provided in a circular array on one side of the first friction plate 120. The first bolts 121 pass through the first friction plate 120 and engage in the first thread grooves 111 to fix the first friction plate 120 on the gear body 110, and facilitate the installation and disassembly of the first friction plate 120, thereby increasing the convenience of use.

[0027] The bracket 130 is U-shaped and fixed on the inner wall of the gear box for installing other components. The shell 140 is fixed on the end of the bracket 130. The movable part 150 is arranged in the inner cavity of the shell 140 and extends out of the shell 140. It is used to install the second friction plate 160 and drive the second friction plate 160 to move.

[0028] The movable part 150 includes a first piston 151 movably arranged in the inner cavity of the shell 140, a column 152 with one end fixed on the piston and the other end extending out of the shell 140, and a spring 153 connecting the first piston 151 and the inner bottom wall of the shell 140. The first piston 151 is used to drive the column 152 to move, the column 152 is used to install the second friction plate 160 and drive the second friction plate 160 to move, the spring 153 is used to reset the piston, and after the piston is reset, the second friction plate 160 is driven to separate from the first friction plate 120 through the column 152.

[0029] The second friction plate 160 is arc-shaped and is used to be tightly attached to the first friction plate 120 to limit the gear body 110 and ensure that the gear body 110 stops rotating immediately when the machine is shut down. A second thread groove 1521 is opened at the end of the column 152, and a second bolt 161 is arranged on one side of the second friction plate 160. The second bolt 161 passes through the second friction plate 160 and engages in the second thread groove 1521 to facilitate the installation and disassembly of the second friction plate 160.

[0030] The inner cavity of the cylinder 170 is filled with hydraulic oil for transmitting pressure. A flow channel 131 is provided in the inner cavity of the bracket 130 to communicate with the inner cavity of the cylinder 170. One end of the connecting pipe 190 is connected to the inner cavity of the shell 140, and the other end is connected to the end of the flow channel 131, so that the hydraulic oil in the cylinder 170 can enter the inner cavity of the shell 140 through the flow channel 131 and the connecting pipe 190.

[0031] The compression member 180 is used to pressurize the hydraulic oil in the inner cavity of the cylinder 170, and includes a second piston 181 movably arranged in the inner cavity of the cylinder 170 and an electric telescopic rod 182 installed on one side of the cylinder 170 and with its end extending into the inner cavity of the cylinder 170 and fixedly connected to the second piston 181. The electric telescopic rod 182 drives the second piston 181 to move, pressurizes the hydraulic oil in the cylinder 170, and transmits the pressure to the movable member 150 through the hydraulic oil, so that the movable member 150 extends outward, even if the second friction plate 160 is tightly attached to the first friction plate 120.

[0032] The working principle and use process of the utility model are as follows: when the reduction box is stopped, the gear rotates under the action of inertia, and the electric telescopic rod 182 is started, driving the piston to compress the hydraulic oil in the inner cavity of the cylinder 170. The hydraulic oil in the cylinder 170 is pressurized to enter the inner cavity of the housing 140 through the flow channel 131 and the connecting pipe 190, and exerts pressure on the piston. The piston moves outward under the action of pressure, that is, the second friction plate 160 is driven to move through the support, so that the second friction plate 160 is closely attached to the first friction plate 120, and the gear body 110 is pressed by the friction force. The gear body 110 is limited to ensure that it can stop rotating immediately when it is shut down. When the gear body 110 needs to be rotated again, the electric telescopic rod 182 drives the second piston 181 to retract. At this time, the spring 153 releases its elastic force, driving the piston to reset, and the hydraulic pressure in the inner cavity of the shell 140 is pressed back to the inner cavity of the cylinder 170 through the connecting pipe 190 and the flow channel 131. At the same time, the piston reset drives the second friction plate 160 to reset through the column 152, so that the first friction plate 120 is separated from the second friction plate 160. At this time, the gear body 110 loses the limit and can rotate.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gear locking mechanism, comprising: The main body mechanism (100) is characterized in that the main body mechanism (100) comprises a gear body (110), a first friction plate (120) installed on both sides of the gear body (110) by threaded connection, a bracket (130) arranged on one side of the gear body (110), a shell (140) symmetrically fixed to the end of the bracket (130), a movable member (150) movably arranged in the inner cavity of the shell (140) and the end of which extends out of the shell (140), a second friction plate (160) installed on the end of the movable member (150) by threaded connection, a cylinder (170) fixed on one side of the bracket (130), a compression member (180) installed on one side of the cylinder (170) and extending into the cylinder (170), and connecting pipes (190) installed on both sides of the bracket (130); The inner cavity of the bracket (130) is provided with a flow channel (131) which is in communication with the inner cavity of the cylinder (170); one end of the connecting pipe (190) is in communication with the inner cavity of the housing (140), and the other end is in communication with the end of the flow channel (131); the inner cavity of the cylinder (170) is filled with hydraulic oil.

2. A gear locking mechanism according to claim 1, characterized in that: A plurality of first thread grooves (111) are formed in an annular array on both sides of the gear body (110), and a plurality of first bolts (121) are formed in an annular array on one side of the first friction plate (120). The first bolts (121) pass through the first friction plate (120) and mesh with the first thread grooves (111).

3. A gear locking mechanism according to claim 1, characterized in that: The movable member (150) comprises a first piston (151) movably disposed in the inner cavity of the housing (140), a column (152) having one end fixed to the piston and the other end extending out of the housing (140), and a spring (153) connecting the first piston (151) and the inner bottom wall of the housing (140).

4. A gear locking mechanism according to claim 3, characterized in that: A second thread groove (1521) is formed at the end of the column (152), and a second bolt (161) is provided on one side of the second friction plate (160). The second bolt (161) passes through the second friction plate (160) and is engaged in the second thread groove (1521).

5. The gear locking mechanism according to claim 1, characterized in that: The compression member (180) comprises a second piston (181) movably disposed in the inner cavity of the cylinder (170), and an electric telescopic rod (182) mounted on one side of the cylinder (170) and having an end extending into the inner cavity of the cylinder (170) and fixedly connected to the second piston (181).

6. The gear locking mechanism according to claim 1, characterized in that: The bracket (130) is fixed on the inner wall of the gear box housing of the reducer.

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