Fixing device of speed reducer

Abstract

The utility model provides a fixing device of a speed reducer, which comprises a speed reducer body, a clamping positioning component arranged in a fixing table, and an auxiliary positioning component arranged on the upper end face of the fixing table. A reverse transmission worm drives clamping blocks on the left side and the right side to synchronously move towards the inner side through a transmission worm gear, a double-thread lead screw and a displacement base to clamp and fix a machine base, meanwhile, the displacement base can drive a follow-up rod to move towards the inner side at the same time, and when the follow-up rod moves inwards by a certain distance, inward pushing force can be applied to a pushing piece; the pushing piece drives the positioning insertion block to move towards the inner side together, then the positioning insertion block extends out towards the inner side to further conduct auxiliary clamping and fixing on the machine base, so that the machine base is stably fixed to the upper end face of the fixing table, and the speed reducer body is prevented from being loosened in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducer fixing, in particular to a speed reducer fixing device. Background Art

[0002] The reducer is an independent component consisting of a gear drive, worm drive, or gear-worm drive enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator. It is widely used in modern machinery. Before the reducer is used, a fixing device is required to fix the reducer in a specific position.

[0003] Publication No. "CN216789183U" provides a reducer fixing device, which connects the mounting bolt to the threaded groove, and then allows the limit plate to be stuck in the slot. At this time, the pressure plate presses the mounting bolt, and the electric telescopic rod extends when it starts, and the front end will be inserted into the socket of the skateboard, so that the horizontal position of the skateboard is stabilized, and the limit plate can always be stuck in the slot. When the reducer is disassembled, the electric telescopic rod is closed, it will shorten and cannot be stuck in the socket, and then the skateboard is pulled to make the limit plate disengage from the slot, and then the mounting bolt is removed.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the reducer fixing device can fix the speed reducer, in the actual disassembly and assembly process, the installer still needs to use a wrench to disassemble and assemble the mounting bolts, and the disassembly and assembly are not convenient. Secondly, the fixing device needs to be used in conjunction with the electric telescopic rod, and the electric telescopic rod requires a separate external fixed power supply and control panel to work, which not only increases the maintenance difficulty of the fixing device, but also further increases the manufacturing cost of the fixing device, and its practicality needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a fixing device for a reducer to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fixing device for a reducer comprises a reducer body, a machine base, a fixing platform and a mounting base plate, wherein a machine base is arranged at the bottom of the reducer body, a fixing platform is installed at the bottom of the machine base, a mounting base plate is fixedly connected to the bottom of the fixing platform, a clamping and positioning component is arranged inside the fixing platform, and the clamping and positioning component is used to clamp and fix the machine base placed on the upper end face of the fixing platform, an auxiliary positioning component is arranged on the upper end face of the fixing platform, and the auxiliary positioning component is used to further position the machine base placed on the upper end face of the fixing platform to avoid displacement or shaking of the machine base during use.

[0009] Preferably, the clamping and positioning assembly includes a clamping block, a limiting groove, a displacement seat, a transmission worm, a transmission worm wheel and a double-threaded screw. A double-threaded screw is installed inside the fixed table, a transmission worm wheel is arranged on the left side of the annular side surface of the double-threaded screw, a transmission worm is meshed with the rear side of the annular side surface of the transmission worm wheel, limiting grooves are symmetrically provided on the left and right sides of the upper end surface of the fixed table, displacement seats are arranged on the left and right sides of the annular side surface of the double-threaded screw, and a clamping block is arranged on the upper end of the displacement seat.

[0010] Preferably, the auxiliary positioning assembly includes a limit block, a follower rod, a push plate and a positioning plug block. A follower rod is provided on the upper side of the inner wall of the displacement seat. The limit blocks are symmetrically fixedly connected to the left and right sides of the upper end surface of the fixed platform. A positioning plug block is installed inside the limit block, and a push plate is provided on the lower end surface of the positioning plug block.

[0011] Preferably, a return spring is connected to the left end of the positioning plug, the push piece and the positioning plug are an integrated structure, and the left and right ends of the return spring are fixedly connected with connecting rings.

[0012] Preferably, a rotating disk is provided at the upper end of the transmission worm, a positioning screw is installed on the left side inside the rotating disk, and a limiting ring is provided on the upper side of the annular side surface of the transmission worm.

[0013] Preferably, a limited stop cover is installed on the left side of the upper end surface of the fixing platform, and a blocking plate is installed on the left end surface of the fixing platform.

[0014] Preferably, the limiting groove matches the displacement seat, the clamping block is L-shaped, and the external thread on the left side of the annular side of the double-threaded screw rotates in opposite directions to the external thread on the right side of the annular side.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When installing the reducer body, the device reverses the transmission worm, so that the reversed transmission worm drives the clamping blocks on the left and right sides to move inward synchronously through the transmission worm wheel, double-threaded screw and displacement seat to clamp and fix the machine base. Similarly, when the transmission worm rotates forward, the displacement seat can drive the clamping blocks on the left and right sides to move outward synchronously to release the clamping and fixing of the machine base, so as to disassemble the reducer body. Not only is the disassembly and assembly convenient, but also no wrench and screws are required for fixing during the disassembly and assembly process;

[0017] 2. When the clamping and positioning assembly of this device clamps and fixes the machine base, the displacement seat will drive the follower rod to move inward. After the follower rod moves inward for a certain distance, it will apply an inward pushing force to the push plate, so that the push plate drives the positioning plug to move inward and extend to further assist in clamping and fixing the machine base, thereby further firmly fixing the machine base. Similarly, when the clamping and positioning assembly releases the clamping of the machine base, the tensile force of the return spring will cause the positioning plug to move outward and shrink to the inside of the limit block. At this time, the machine base can be lifted, moved and disassembled to prevent the positioning plug from hindering the disassembly of the machine base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a structural diagram of the clamping positioning component and the auxiliary positioning component in the utility model;

[0020] Figure 3 It is a front cross-sectional view of the clamping positioning assembly and the auxiliary positioning assembly in the utility model when the machine base is fixed;

[0021] Figure 4 It is a front cross-sectional view of the clamping positioning assembly and the auxiliary positioning assembly in the utility model in the open state;

[0022] Figure 5 It is a partial structural diagram of the clamping positioning component and the auxiliary positioning component in the utility model;

[0023] Figure 6 for Figure 3 A partial enlarged view of .

[0024] In the figure: 1. reducer body; 2. machine base; 3. fixed platform; 31. limit cover; 4. mounting base; 51. clamping block; 52. rotating disk; 521. positioning screw; 53. blocking plate; 54. limit groove; 55. displacement seat; 56. transmission worm; 561. limit ring; 57. transmission worm wheel; 58. double-threaded screw; 61. limit block; 62. follower rod; 63. push plate; 64. positioning plug; 65. return spring. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-6 , the utility model provides a technical solution: Example

[0027] A fixing device for a reducer comprises a reducer body 1, a machine base 2, a fixing platform 3 and a mounting base plate 4. The machine base 2 is arranged at the bottom of the reducer body 1, the machine base 2 and the reducer body 1 are an integrated structure, the machine base 2 can support the reducer body 1, a fixing platform 3 is installed at the bottom of the machine base 2, the fixing platform 3 and the mounting base plate 4 are an integrated structure, the fixing platform 3 can support the machine base 2, the fixing platform 3 is fixedly connected to the mounting base plate 4 at the bottom, fixing holes are symmetrically opened on the left and right sides of the mounting base plate 4, and the mounting base plate 4 and the fixing holes are convenient for installers to install and fix the mounting base plate 4 with the help of external expansion bolts.

[0028] A clamping and positioning component is provided inside the fixed table 3, and the clamping and positioning component is used to clamp and fix the machine base 2 placed on the upper end surface of the fixed table 3. An auxiliary positioning component is provided on the upper end surface of the fixed table 3, and the auxiliary positioning component is used to further position the machine base 2 placed on the upper end surface of the fixed table 3 to avoid displacement or shaking of the machine base 2 during use.

[0029] The clamping and positioning assembly includes a clamping block 51, a limiting groove 54, a displacement seat 55, a transmission worm 56, a transmission worm wheel 57 and a double-threaded screw 58. A double-threaded screw 58 is installed inside the fixed table 3. The external thread on the left side of the annular side of the double-threaded screw 58 rotates in opposite directions to the external thread on the right side of the annular side. The double-threaded screw 58, whose external thread on the left side of the annular side and the external thread on the right side of the annular side rotate in opposite directions, can drive the displacement seats 55 on the left and right sides to move synchronously in opposite directions when rotating. A transmission worm wheel 57 is arranged on the left side of the annular side of the double-threaded screw 58. The transmission worm wheel 57 is connected to the double-threaded screw 58 by welding. The transmission worm wheel 57 can drive the double-threaded screw 58 to rotate. A transmission worm 56 is meshed with the rear side of the annular side of the transmission worm wheel 57. The transmission worm 56 is connected to the rotating disk 52 and the limiting ring 561 by welding. The transmission worm 56 can drive the transmission worm wheel 57 to rotate.

[0030] The upper end surface of the fixed platform 3 is symmetrically provided with limit grooves 54 on both sides, and the limit grooves 54 match the displacement seat 55. The limit grooves 54 can limit and guide the displacement seat 55 to prevent the displacement seat 55 from deflecting or shaking during the displacement process. The left and right sides of the circular side surface of the double-threaded screw 58 are provided with displacement seats 55. The displacement seat 55 is connected to the clamping block 51 and the follower rod 62 by welding. The displacement seat 55 can support the clamping block 51 and the follower rod 62. An internal threaded through cavity is opened on the lower side of the displacement seat 55, and the internal threaded through cavity is meshed with the double-threaded screw 58. The internal threaded through cavity enables the double-threaded screw 58 to drive the displacement seat 55 to move left and right. A clamping block 51 is arranged on the upper end of the displacement seat 55. The clamping block 51 is L-shaped. The L-shaped clamping block 51 can clamp and fix the left and right end faces of the machine base 2. A rotating disk 52 is arranged on the upper end of the transmission worm 56. The rotating disk 52 facilitates the installer to rotate the transmission worm 56 by hand.

[0031] A positioning screw 521 is installed on the left side of the rotating disk 52, and a vertical internal threaded through hole is opened on the left side of the rotating disk 52, and the vertical internal threaded through hole is meshed with the positioning screw 521. The meshing vertical internal threaded through hole and the positioning screw 521 can position the rotating disk 52, and a limiting ring 561 is arranged on the upper side of the annular side surface of the transmission worm 56, and a limiting baffle 31 is installed on the left side of the upper end surface of the fixed platform 3. The limiting ring 561 and the limiting baffle 31 prevent the transmission worm 56 from being displaced or shaking during rotation. A blocking plate 53 is installed on the left end surface of the fixed platform 3. The blocking baffle can block and limit the double-threaded screw 58 to prevent the double-threaded screw 58 from being displaced during rotation. Example

[0032] On the basis of Example 1, in this embodiment, while the clamping and positioning assembly clamps and fixes the machine base 2, the displacement seat 55 will drive the follower rod 62 to move inward together. After the follower rod 62 moves inward for a certain distance, it will apply an inward pushing force to the push plate 63, so that the push plate 63 drives the positioning plug 64 to move inward and extend to further assist in clamping and fixing the machine base 2, thereby further firmly fixing the machine base 2. Similarly, when the clamping and positioning assembly releases the clamping of the machine base 2, the tensile force of the return spring 65 will cause the positioning plug 64 to move outward and shrink to the inside of the limit block 61. At this time, the machine base 2 can be lifted, moved and disassembled to prevent the positioning plug 64 from hindering the disassembly of the machine base 2.

[0033] The auxiliary positioning assembly includes a limit block 61, a follower rod 62, a push piece 63 and a positioning plug block 64. A follower rod 62 is arranged on the upper side of the inner wall of the displacement seat 55. The follower rod 62 will push the push piece 63 after moving inward for a certain distance. The limit blocks 61 are symmetrically fixedly connected to the left and right sides of the upper end surface of the fixed table 3. The limit blocks 61 are connected to the fixed table 3 by welding. Positioning grooves are symmetrically provided on the left and right sides of the lower end surface of the machine base 2, and the positioning grooves match the limit blocks 61. The matching limit blocks 61 and the positioning grooves can limit the machine base 2 placed on the upper end surface of the fixed table 3 to avoid left and right or front and back displacement of the machine base 2 placed on the upper end surface of the fixed table 3.

[0034] A positioning block 64 is installed inside the limit block 61, and the positioning block 64 is connected to the push piece 63 by welding. When the positioning block 64 extends inward, it can further position the machine base 2 so as to firmly fix the machine base 2 on the upper end of the fixed platform 3. A push piece 63 is arranged on the lower end surface of the positioning block 64. The push piece 63 and the positioning block 64 are an integrated structure. The push piece 63 can drive the positioning block 64 to move inward. A return spring 65 is connected to the left end of the positioning block 64. The left and right ends of the return spring 65 are fixedly connected to connecting rings. The return spring 65 can apply an inward pulling force to the positioning block 64 through the connecting ring, so that when the push piece 63 is separated from the follower rod 62, the positioning block 64 can automatically retract inward to its original position.

[0035] Working principle: During the installation of the reducer body 1, the installer first uses the external expansion bolts to fix the installation base plate 4 to the specified position of the external cement floor, and then places the machine base 2 on the upper end surface of the fixed platform 3. At this time, the limit block 61 will limit the machine base 2 placed on the upper end surface of the fixed platform 3 to prevent the machine base 2 placed on the upper end surface of the fixed platform 3 from being displaced left and right or front and back. Then, the transmission worm 56 is reversed by the rotating disk 52, so that the reversed transmission worm 56 drives the transmission worm wheel 57 to rotate forward, and the forward-rotating transmission worm 57 is rotated forward. The wheel 57 will drive the double-threaded screw 58 to rotate forward together, and then the double-threaded screw 58 that rotates forward will drive the clamping blocks 51 on the left and right sides to move inward synchronously through the displacement seat 55 to clamp and fix the machine base 2; at the same time, the displacement seat 55 will drive the follower rod 62 to move inward together, and when the follower rod 62 moves inward for a certain distance, it will apply an inward pushing force to the push piece 63, so that the push piece 63 drives the positioning plug 64 to move inward together, and then the positioning plug 64 extends inward to further assist in clamping and fixing the machine base 2 (refer to Figure 3 ), so as to firmly fix the base 2 on the upper end surface of the fixed platform 3, thereby preventing the reducer body 1 from loosening during use, and finally tighten the rotating disk 52 with the help of an external wrench to prevent the rotating disk 52 from loosening again.

[0036] In the later use process, when the machine base 2 needs to be disassembled and removed, the installer first loosens the positioning screw 521 with the help of an external wrench, and then rotates the transmission worm 56 forward by turning the rotating disk 52, so that the transmission worm 56 drives the displacement seats 55 on the left and right sides to move synchronously outward through the transmission worm wheel 57 and the double-threaded screw 58, and the displacement seats 55 will drive the clamping blocks 51 on the left and right sides to move outward together, thereby separating the clamping blocks 51 from the machine base 2. At the same time, the tensile force of the return tension spring 65 will cause the positioning plug 64 to move outward accordingly. When the clamping block 51 moves outward into place, the tensile force of the return tension spring 65 will also pull the positioning plug 64 to the inside of the limit block 61 (refer to Figure 4 ), at this time, the base 2 can be lifted, moved and disassembled.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for a reducer, comprising a reducer body (1), a machine base (2), a fixing platform (3) and a mounting base plate (4), characterized in that: A base (2) is provided at the bottom of the reducer body (1); a fixing platform (3) is installed at the bottom of the base (2); and a mounting base plate (4) is fixedly connected to the bottom of the fixing platform (3); A clamping and positioning component is provided inside the fixing table (3), and the clamping and positioning component is used to clamp and fix the machine base (2) placed on the upper end surface of the fixing table (3); an auxiliary positioning component is provided on the upper end surface of the fixing table (3), and the auxiliary positioning component is used to further position the machine base (2) placed on the upper end surface of the fixing table (3), so as to prevent the machine base (2) from being displaced or shaken during use.

2. A fixing device for a reducer according to claim 1, characterized in that: The clamping and positioning assembly comprises a clamping block (51), a limiting groove (54), a displacement seat (55), a transmission worm (56), a transmission worm wheel (57) and a double-threaded screw (58); a double-threaded screw (58) is installed inside the fixed platform (3); a transmission worm wheel (57) is arranged on the left side of the annular side of the double-threaded screw (58); a transmission worm wheel (57) is meshed with the transmission worm (56) on the rear side of the annular side of the transmission worm wheel (57); limiting grooves (54) are symmetrically provided on the left and right sides of the upper end surface of the fixed platform (3); displacement seats (55) are arranged on the left and right sides of the annular side of the double-threaded screw (58); and a clamping block (51) is arranged on the upper end of the displacement seat (55).

3. A fixing device for a reducer according to claim 2, characterized in that: The auxiliary positioning assembly comprises a limit block (61), a follower rod (62), a push piece (63) and a positioning plug block (64); the follower rod (62) is arranged on the upper side of the inner wall of the displacement seat (55); the limit block (61) is symmetrically fixedly connected to the upper end surface of the fixed platform (3) on both sides; the positioning plug block (64) is installed inside the limit block (61); and the push piece (63) is arranged on the lower end surface of the positioning plug block (64).

4. A fixing device for a reducer according to claim 3, characterized in that: The left end of the positioning plug (64) is connected to a return tension spring (65), the push piece (63) and the positioning plug (64) are an integrated structure, and the left and right ends of the return tension spring (65) are fixedly connected to connecting rings.

5. A fixing device for a reducer according to claim 2, characterized in that: A rotating disk (52) is arranged at the upper end of the transmission worm (56), a positioning screw (521) is installed on the left side inside the rotating disk (52), and a limiting ring (561) is arranged on the upper side of the annular side surface of the transmission worm (56).

6. A fixing device for a reducer according to claim 1, characterized in that: A limit stop cover (31) is installed on the left side of the upper end surface of the fixing platform (3), and a stop plate (53) is installed on the left end surface of the fixing platform (3).

7. A fixing device for a reducer according to claim 2, characterized in that: The limiting groove (54) matches the displacement seat (55), the clamping block (51) is L-shaped, and the external thread on the left side of the annular side of the double-threaded screw (58) rotates in opposite directions to the external thread on the right side of the annular side.

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