Self-lubricating plastic gearbox

Abstract

The utility model relates to the technical field of gear boxes, and discloses a self-lubricating plastic gear box which comprises a gear box body and a lubricating mechanism arranged at the top of the gear box body, the lubricating mechanism comprises a fixing frame fixedly installed at the top of the gear box body, and a motor is fixedly installed on the inner wall of the top of the fixing frame. An output shaft is fixedly installed at the output end of the motor, a cam is fixedly installed on the outer wall of the other end of the output shaft, an extrusion block is slidably connected to the bottom of the cam, an extrusion rod is fixedly connected to the bottom of the extrusion block, a rubber block is fixedly connected to the bottom of the extrusion rod, and a sealing block is fixedly installed at the bottom of the rubber block. And the outer wall of the extrusion rod is slidably connected with a sealing pipe, by arranging the lubricating mechanism, lubricating liquid can be discharged through a liquid discharging pipe, gears in the gear box can be conveniently and evenly lubricated, and therefore the service life of the gear box can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a self-lubricating plastic gear box. Background Art

[0002] A plastic gearbox is a reduction device that uses plastic gears. It is mainly used to reduce the high-speed rotation of the motor and increase the output torque to meet the use requirements of specific equipment. Plastic gearboxes achieve the functions of speed reduction and torque increase through the transmission of gear pairs. They are widely used in various mechanical equipment. Gears refer to mechanical components with gears on the rim that continuously mesh to transmit motion and power. Gears can be classified according to tooth shape, gear shape, tooth line shape, surface on which the teeth are located, and manufacturing method. Lubrication technology is a fundamental work in gear research. It can not only improve the load-bearing capacity of the tooth surface, but also improve transmission efficiency.

[0003] According to a self-lubricating device for a gear box proposed in Chinese patent CN219082175U, the lubricating liquid is first placed into the storage tank, and then a sealing cover is installed inside the storage tank. When the gear speed is too fast, the eccentric force drives the pushing block to move outward, and then drives the driven block to move upward, and then drives the hinge rod to rotate along the cylindrical rod, thereby rotating the tilting block at one end of the hinge rod, and the rubber plate is separated from the liquid inlet. Then, the seal of the liquid inlet is released, and the lubricating liquid flows down from the liquid inlet and flows from the liquid outlet along the inclined direction of the flow groove to between the two gears to lubricate the gears.

[0004] However, this patent still has some shortcomings. In the device, one end of the hinge rod is tilted to release the rubber plate from the seal of the liquid inlet, which prompts the lubricating liquid to remain from the liquid inlet and flow out through the liquid outlet to achieve lubrication between the two gears. Since the position of the liquid outlet is fixed during the flow of the lubricating liquid, the lubrication range between the gears is also fixed, which easily causes uneven lubrication of the gears inside the gear box during lubrication. For this reason, we propose a self-lubricating plastic gear box. Utility Model Content

[0005] The purpose of the utility model is to provide a self-lubricating plastic gear box, which solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a self-lubricating plastic gearbox, comprising a gearbox;

[0007] The cam is fixedly mounted on the top of the gear box, and the top inner wall of the fixed frame is fixedly mounted on the motor, the output end of the motor is fixedly mounted on the output shaft, and the outer wall of the other end of the output shaft is fixedly mounted on the outer wall of the output shaft, the bottom of the cam is slidably connected with an extrusion block, the bottom of the extrusion block is fixedly connected with an extrusion rod, the bottom of the extrusion rod is fixedly connected with a rubber block, the bottom of the rubber block is fixedly mounted with a sealing block, the outer wall of the extrusion rod is slidably connected with a sealing tube, the bottom of the sealing tube is connected with a drain pipe, the bottom outer wall of the drain pipe is fixedly connected to the top inner wall of the gear box, the outer wall of the sealing block is slidably connected to the inner wall of the sealing block, the outer wall of the sealing tube is fixedly mounted with a limiting block, the inner wall of the limiting block is slidably connected to a limiting column, the top of the limiting column is fixedly connected to the bottom of the extrusion block, the bottom of the extrusion block is fixedly connected with a reset spring, and the reset spring The other end of the spring is fixedly connected to the top of the limit block. By setting a lubrication mechanism, during the normal operation of the gear box, in order to avoid wear of the gears inside it after long-term meshing, the gears need to be lubricated to improve the working efficiency of the gears inside the gear box. When the gears inside the gear box need to be lubricated, the operator can turn on the motor to cause the output shaft to rotate, and cause the output shaft to rotate with the cam. After the top part of the cam rotates upward, it will be disengaged from the extrusion block. Under the reaction of the return spring, the limit column will slide upward inside the limit block and move the extrusion block upward, causing the extrusion rod to move upward with the extrusion block, and move the rubber block and the sealing block upward, so that the sealing block is disengaged from the limit inside the drain pipe, and the lubricating fluid is discharged through the drain pipe. In the process of continuous rotation of the cam, the gears inside the gear box can be intermittently and reciprocally evenly lubricated, thereby improving the lubrication effect of the gears.

[0008] Preferably, a sealing mechanism is provided on the side of the lubrication mechanism, and the sealing mechanism includes a support block fixedly mounted on the top of the gear box, a liquid storage tank is fixedly mounted on the top side wall of the support block, a pump body is fixedly mounted on the bottom of the liquid storage tank, the input end of the pump body is connected to the bottom of the liquid storage tank, the output end of the pump body is connected to a liquid infusion tube, the other end of the liquid infusion tube is connected to the top outer wall of the discharge tube, the top of the liquid storage tank is connected to a liquid inlet pipe, a fixing ring is fixedly mounted on the top outer wall of the liquid inlet pipe, a blocking plug is slidably connected to the top inner wall of the liquid inlet pipe, and a cover is fixedly mounted on the top of the blocking plug. The inner wall of the side of the cover body is threadedly connected with a screw. By setting a sealing mechanism, before lubricating the gears, the operator needs to pass the lubricating liquid into the interior of the liquid storage tank through the liquid inlet pipe. After the lubricating liquid inside the liquid storage tank is filled, the operator buckles the blocking plug on the top inner wall of the fixing ring, and then tightens the screws to achieve sealing and limiting the blocking plug and the liquid inlet pipe to prevent impurities from entering the interior of the liquid storage tank. When the gears need to be lubricated, the operator can turn on the pump body to prompt the pump body to draw the lubricating liquid inside the liquid storage tank into the interior of the infusion tube, so that the lubricating liquid is discharged through the discharge pipe to achieve lubrication of the gears inside the gearbox.

[0009] Preferably, support pads are fixedly installed on the bottom of the gear box. There are four support pads, which are fixedly installed at the four corners of the bottom of the gear box at equal distances. Through this arrangement, the gear box can be supported by the four support pads.

[0010] Preferably, the bottom of the extrusion block is fixedly connected to the top of the limiting column, and the outer wall of the limiting column is adapted to the inner wall of the limiting block. Through this arrangement, the limiting block and the limiting column can be used to limit the extrusion block.

[0011] Preferably, the inner wall of the sealing tube is matched with the outer wall of the rubber block, and the top of the rubber block is fixedly connected to the bottom of the extrusion rod.

[0012] Preferably, there are two support blocks, the two support blocks are equal in size, and the two support blocks are symmetrically distributed along the center plane of the gear box.

[0013] The utility model provides a self-lubricating plastic gear box. The self-lubricating plastic gear box has the following beneficial effects:

[0014] (1) The self-lubricating plastic gearbox is provided with a lubricating mechanism. During the normal operation of the gearbox, in order to avoid wear of the gears inside the gearbox after long-term meshing, the gears need to be lubricated to improve the working efficiency of the gears inside the gearbox. During the process of lubricating the gears inside the gearbox, the operator can turn on the motor to cause the output shaft to rotate, and cause the output shaft to rotate with the cam. After the top of the cam rotates upward, it will be separated from the squeezing of the squeezing block. Under the reaction of the reset spring, the limit column will slide upward inside the limit block and move the squeezing block upward, causing the squeezing rod to move upward with the squeezing block and move the rubber block and the sealing block upward. After the sealing block is separated from the limit inside the drain pipe, the lubricating liquid is discharged through the drain pipe. During the continuous rotation of the cam, the gears inside the gearbox can be evenly lubricated intermittently and reciprocally, thereby improving the lubrication effect of the gears.

[0015] (2) The self-lubricating plastic gearbox is provided with a sealing mechanism. Before lubricating the gears, the operator needs to pass the lubricating liquid into the interior of the liquid storage tank through the liquid inlet pipe. After the lubricating liquid in the liquid storage tank is filled, the operator buckles the blocking plug on the top inner wall of the fixing ring and then tightens the screws to achieve a sealing limit between the blocking plug and the liquid inlet pipe to prevent impurities from entering the interior of the liquid storage tank. When it is necessary to lubricate the gears, the operator can turn on the pump body to cause the pump body to draw the lubricating liquid in the liquid storage tank into the interior of the infusion pipe, so that the lubricating liquid is discharged through the discharge pipe to achieve lubrication of the gears inside the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the internal lubrication mechanism of the utility model;

[0019] Figure 4 It is a partial cross-sectional view of the internal lubrication mechanism of the utility model;

[0020] Figure 5 It is a structural diagram of the internal sealing mechanism of the utility model.

[0021] In the figure: 1. gearbox; 2. support pad; 31. lubrication mechanism; 311. fixing frame; 312. motor; 313. output shaft; 314. cam; 315. extrusion block; 316. extrusion rod; 317. rubber block; 318. sealing block; 319. drain pipe; 3110. sealing pipe; 3111. limit block; 3112. limit column; 3113. return spring; 32. sealing mechanism; 321. support block; 322. liquid storage tank; 323. pump body; 324. infusion tube; 325. liquid inlet pipe; 326. fixing ring; 327. blocking plug; 328. cover body; 329. screw. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0023] A preferred embodiment of the self-lubricating plastic gearbox provided by the present invention is as follows: Figures 1 to 5 Shown: A self-lubricating plastic gearbox, comprising a gearbox 1;

[0024] The lubricating mechanism 31 is provided on the top of the gearbox 1. The lubricating mechanism 31 includes a fixing frame 311 fixedly mounted on the top of the gearbox 1. A motor 312 is fixedly mounted on the inner wall of the top of the fixing frame 311. An output shaft 313 is fixedly mounted on the output end of the motor 312. A cam 314 is fixedly mounted on the outer wall of the other end of the output shaft 313. An extrusion block 315 is slidably connected to the bottom of the cam 314. An extrusion rod 316 is fixedly connected to the bottom of the extrusion block 315. A rubber block 317 is fixedly mounted on the bottom of the extrusion rod 316. A sealing block 318 is fixedly mounted on the bottom of the rubber block 317. The outer wall of the extrusion rod 316 is slidably connected to the outer wall of the extrusion rod 316. A sealing tube 3110 is dynamically connected, and a drain pipe 319 is provided at the bottom of the sealing tube 3110. The bottom outer wall of the drain pipe 319 is fixedly connected to the top inner wall of the gear box 1, and the outer wall of the sealing block 318 is slidably connected to the inner wall of the sealing block 318. A limiting block 3111 is fixedly installed on the outer wall of the sealing tube 3110, and the inner wall of the limiting block 3111 is slidably connected to the limiting column 3112. The top of the limiting column 3112 is fixedly connected to the bottom of the extrusion block 315, and the bottom of the extrusion block 315 is fixedly connected to a reset spring 3113, and the other end of the reset spring 3113 is fixedly connected to the top of the limit block 3111.

[0025] By setting up the lubrication mechanism 31, during the normal operation of the gear box 1, in order to avoid wear of the gears inside it after long-term meshing, the gears need to be lubricated to improve the working efficiency of the gears inside the gear box. When the gears inside the gear box need to be lubricated, the operator can turn on the motor 312 to cause the output shaft 313 to rotate, causing the output shaft 313 to rotate with the cam 314. After the top part of the cam 314 rotates upward, it will be released from the squeezing block 315, and the return spring 311 will be released. 3, the limiting post 3112 is prompted to slide upward inside the limiting block 3111, and the extrusion block 315 is moved upward, prompting the extrusion rod 316 to move upward along with the extrusion block 315, and to move the rubber block 317 and the sealing block 318 upward, so that the sealing block 318 is released from the limit inside the drain pipe 319, and the lubricating fluid is discharged through the drain pipe 319. During the continuous rotation of the cam 314, the gears inside the gear box 1 are intermittently and reciprocally lubricated evenly, thereby improving the lubrication effect of the gears.

[0026] A preferred embodiment of the self-lubricating plastic gearbox provided by the present invention is as follows: Figures 1 to 5 As shown: a sealing mechanism 32 is provided on the side of the lubrication mechanism 31, and the sealing mechanism 32 includes a support block 321 fixedly mounted on the top of the gear box 1, a liquid storage tank 322 is fixedly mounted on the top side wall of the support block 321, a pump body 323 is fixedly mounted on the bottom of the liquid storage tank 322, the input end of the pump body 323 is connected to the bottom of the liquid storage tank 322, and the output end of the pump body 323 is connected to a liquid infusion tube 324, the other end of the liquid infusion tube 324 is connected to the top outer wall of the discharge pipe 319, and a liquid inlet pipe 325 is connected to the top of the liquid storage tank 322, a fixing ring 326 is fixedly mounted on the top outer wall of the liquid inlet pipe 325, a blocking plug 327 is slidably connected to the top inner wall of the liquid inlet pipe 325, a cover body 328 is fixedly mounted on the top of the blocking plug 327, and a screw 329 is threadedly connected to the side inner wall of the cover body 328.

[0027] In this embodiment, by setting up a sealing mechanism 32, before lubricating the gears, the operator needs to pass the lubricating liquid into the interior of the liquid storage tank 322 through the liquid inlet pipe 325. After the lubricating liquid inside the liquid storage tank 322 is filled, the operator buckles the blocking plug 327 on the top inner wall of the fixing ring 326, and then tightens the screw 329 to achieve sealing and limiting the blocking plug 327 and the liquid inlet pipe 325 to prevent impurities from entering the interior of the liquid storage tank 322. When it is necessary to lubricate the gears, the operator can turn on the pump body 323 to prompt the pump body 323 to draw the lubricating liquid inside the liquid storage tank 322 into the interior of the infusion pipe 324, so that the lubricating liquid is discharged through the discharge pipe 319 to achieve lubrication of the gears inside the gearbox.

[0028] Furthermore, a support pad 2 is fixedly installed at the bottom of the gear box 1. There are four support pads 2, and the four support pads 2 are fixedly installed at the four corners of the bottom of the gear box 1 at equal distances. Through this arrangement, the gear box 1 can be supported by the four support pads 2.

[0029] Furthermore, the bottom of the extrusion block 315 is fixedly connected to the top of the limiting column 3112, and the outer wall of the limiting column 3112 is adapted to the inner wall of the limiting block 3111. Through this arrangement, the limiting block 3111 and the limiting column 3112 can be used to limit the extrusion block 315.

[0030] Furthermore, the inner wall of the sealing tube 3110 is adapted to the outer wall of the rubber block 317 , and the top of the rubber block 317 is fixedly connected to the bottom of the extrusion rod 316 .

[0031] In addition, there are two support blocks 321 , the two support blocks 321 are equal in size, and the two support blocks 321 are symmetrically distributed along the center plane of the gear box 1 .

[0032] Working principle: Before lubricating the gears, the operator needs to pass the lubricating liquid into the interior of the liquid reservoir 322 through the liquid inlet pipe 325. After the lubricating liquid inside the liquid reservoir 322 is filled, the operator buckles the blocking plug 327 on the top inner wall of the fixing ring 326, and then tightens the screw 329 to achieve a sealed position limit between the blocking plug 327 and the liquid inlet pipe 325 to prevent impurities from entering the interior of the liquid reservoir 322. When the gears need to be lubricated, the operator can turn on the pump body 323 to prompt the pump body 323 to draw the lubricating liquid inside the liquid reservoir 322 into the interior of the liquid infusion pipe 324, so that the lubricating liquid is discharged through the drain pipe 319 to lubricate the gears inside the gear box. During the normal operation of the gear box 1, in order to avoid wear of the gears inside it after long-term meshing, the gears need to be lubricated to improve the working efficiency of the gears inside the gear box. When the gears inside the gearbox need to be lubricated, the operator can turn on the motor 312 to cause the output shaft 313 to rotate, causing the output shaft 313 to rotate with the cam 314. After the top part of the cam 314 rotates upward, it will be disengaged from the squeezing block 315. Under the reaction of the return spring 3113, the limiting post 3112 will slide upward inside the limiting block 3111, and the squeezing block 315 will move upward, causing the squeezing rod 316 to move upward with the squeezing block 315, and move the rubber block 317 and the sealing block 318 upward, so that the sealing block 318 is disengaged from the limit inside the drain pipe 319, and the lubricating fluid is discharged through the drain pipe 319. In the process of continuous rotation of the cam 314, the gears inside the gearbox 1 can be intermittently and reciprocally lubricated evenly, thereby improving the lubrication effect of the gears.

[0033] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected for use alone or in combination according to actual needs. Therefore, the present invention naturally covers other combinations and specific applications related to this case.

Claims

1. A self-lubricating plastic gearbox, comprising a gearbox (1); and a lubricating mechanism (31) arranged on the top of the gear box (1), characterized in that: The lubricating mechanism (31) comprises a fixing frame (311) fixedly mounted on the top of the gear box (1); a motor (312) is fixedly mounted on the inner wall of the top of the fixing frame (311); an output shaft (313) is fixedly mounted on the output end of the motor (312); a cam (314) is fixedly mounted on the outer wall of the other end of the output shaft (313); an extrusion block (315) is slidably connected to the bottom of the cam (314); an extrusion rod (316) is fixedly connected to the bottom of the extrusion block (315); a rubber block (317) is fixedly mounted on the bottom of the rubber block (317); a sealing block (318) is fixedly mounted on the bottom of the rubber block (317); and a sealing tube (319) is slidably connected to the outer wall of the extrusion rod (316). 3110), the bottom of the sealing tube (3110) is connected to a drain pipe (319), the bottom outer wall of the drain pipe (319) is fixedly connected to the top inner wall of the gear box (1), the outer wall of the sealing block (318) is slidably connected to the inner wall of the sealing block (318), a limiting block (3111) is fixedly installed on the outer wall of the sealing tube (3110), the inner wall of the limiting block (3111) is slidably connected to a limiting column (3112), the top of the limiting column (3112) is fixedly connected to the bottom of the extrusion block (315), the bottom of the extrusion block (315) is fixedly connected to a reset spring (3113), and the other end of the reset spring (3113) is fixedly connected to the top of the limiting block (3111).

2. The self-lubricating plastic gearbox according to claim 1, characterized in that: A sealing mechanism (32) is provided on the side of the lubricating mechanism (31), and the sealing mechanism (32) comprises a support block (321) fixedly mounted on the top of the gear box (1); a liquid storage tank (322) is fixedly mounted on the top side wall of the support block (321); a pump body (323) is fixedly mounted on the bottom of the liquid storage tank (322); an input end of the pump body (323) is connected to the bottom of the liquid storage tank (322); and an output end of the pump body (323) is connected to a liquid infusion pipe (324). The other end of the infusion tube (324) is connected to the top outer wall of the drainage tube (319), and the top of the liquid storage tank (322) is connected to a liquid inlet tube (325). A fixing ring (326) is fixedly installed on the top outer wall of the liquid inlet tube (325). A blocking plug (327) is slidably connected to the top inner wall of the liquid inlet tube (325). A cover body (328) is fixedly installed on the top of the blocking plug (327), and a screw (329) is threadedly connected to the side inner wall of the cover body (328).

3. The self-lubricating plastic gearbox according to claim 1, characterized in that: A support pad (2) is fixedly installed at the bottom of the gear box (1), and there are four support pads (2). The four support pads (2) are fixedly installed at the four corners of the bottom of the gear box (1) at equal distances.

4. The self-lubricating plastic gearbox according to claim 1, characterized in that: The bottom of the extrusion block (315) is fixedly connected to the top of the limiting column (3112), and the outer wall of the limiting column (3112) is adapted to the inner wall of the limiting block (3111).

5. The self-lubricating plastic gearbox according to claim 1, characterized in that: The inner wall of the sealing tube (3110) is adapted to the outer wall of the rubber block (317), and the top of the rubber block (317) is fixedly connected to the bottom of the extrusion rod (316).

6. The self-lubricating plastic gearbox according to claim 2, characterized in that: There are two support blocks (321), the two support blocks (321) are equal in size, and the two support blocks (321) are symmetrically distributed along the center plane of the gear box (1).

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