Speed reducer capable of preventing oil leakage

Abstract

The utility model discloses a speed reducer capable of preventing oil leakage, which relates to the technical field of speed reducers, and comprises an input flange and a sealing ring, the middle end in the input flange is connected with an input shaft, a snap spring main body is additionally arranged outside the input shaft, a butt joint block is additionally arranged outside the input shaft, and clamping grooves are arranged at two ends in the butt joint block. A gear ring body is arranged at the rear end of the input flange, an output flange is installed outside the gear ring body, a front bearing is installed in the input flange, planet wheels are distributed at the rear end of the front bearing, and rear bearings are arranged at the rear ends of the planet wheels. Meanwhile, an output shaft is connected into the rear bearing, and an A-type key is additionally arranged outside the output shaft. According to the speed reducer capable of preventing oil leakage, it is guaranteed that lubricating oil is always in a proper level, smooth operation of gears is guaranteed, transmission precision and efficiency are improved, and the overall service life of the speed reducer is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducers, and particularly relates to a speed reducer for preventing oil leakage. Background Technique

[0002] A speed reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing, which is used to reduce the rotational speed of the input shaft and increase the torque of the output shaft. Through deceleration, the rotational speed of the output shaft is slower than that of the input shaft, but at the same time, the torque of the output shaft will increase accordingly. The basic use of the speed reducer is to match the speed and transmit torque, and it plays a key role between the prime mover and the working machine or actuator. Since most mechanical equipment is not suitable for being directly driven by the prime mover, a speed reducer is required to reduce the speed and increase the torque. In order to improve the use efficiency of mechanical equipment, a speed reducer is needed, but the existing speed reducers still have the following deficiencies:

[0003] For example, the utility model with the publication number CN218236048U discloses a speed reducer. Through the setting of the driving shaft structure, the length of the driving shaft structure can be adjusted according to requirements, enabling the speed reducer to connect power equipment and working mechanisms at different distances and improving the practicability of the speed reducer. Through the setting of the deceleration ring, the deceleration rate of the speed reducer can be changed according to requirements, improving the practicability of the speed reducer. However, for comparative documents similar to the above application, when the existing speed reducers are in use, since most speed reducers do not have an oil leakage prevention structure, the lubricating oil is lost, resulting in insufficient lubrication of the speed reducer, which increases the running resistance and thus reduces the production efficiency, causing problems such as the practicability and use efficiency of the speed reducer decreasing.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a speed reducer for preventing oil leakage is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a speed reducer for preventing oil leakage to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A speed reducer for preventing oil leakage, comprising an input flange and a sealing ring. The middle end inside the input flange is connected to an input shaft, and a snap ring body is additionally provided outside the input shaft. A docking block is additionally provided outside the input shaft, and clamping grooves are opened at both ends inside the docking block. A clamping block is connected inside the clamping groove, and a sealing ring is arranged inside the clamping block. A ring gear body is arranged at the rear end of the input flange, and an output flange is installed outside the ring gear body. A front bearing is installed inside the input flange, planet gears are distributed at the rear end of the front bearing, a rear bearing is arranged at the rear end of the planet gears, and an output shaft is connected inside the rear bearing. An A-type key is additionally provided outside the output shaft.

[0007] Further, the internal dimension of the snap ring body is adapted to the external dimension of the input shaft, and the input shaft and the snap ring body are in an embedded connection.

[0008] Further, the outer side of the docking block and the outer side of the input flange are horizontally distributed, and the docking block is fixedly connected to the input flange by bolts.

[0009] Further, the internal dimension of the clamping groove is adapted to the external dimension of the clamping block, and the clamping block is in an embedded connection with the docking block through the clamping groove.

[0010] Further, the number of the clamping blocks is two, and the two clamping blocks are symmetrically arranged at both ends outside the sealing ring with the central axis of the side surface of the sealing ring as the symmetry axis.

[0011] Further, the outer side of the ring gear body and the outer side of the output flange are horizontally distributed, and the ring gear body and the output flange are fixedly connected by bolts.

[0012] Further, the number of the front bearings is two, and the two front bearings are equidistantly distributed outside the input shaft.

[0013] Further, the external dimension of the output shaft is adapted to the internal dimension of the rear bearing, and the rear bearing and the output shaft are in an interference connection.

[0014] The present utility model provides a speed reducer for preventing oil leakage, having the following beneficial effects:

[0015] 1. Through the setting of the sealing ring, when the speed reducer for preventing oil leakage is in use, the docking block can be fixedly installed outside the input flange by tightening bolts. At the same time, the sealing ring is limited and installed inside the docking block through the cooperation of the clamping groove and the clamping block. The speed reducer is docked and installed with the mechanical equipment by using the input flange, so that the input flange is tightly connected with the mechanical equipment. At the same time, the sealing ring is used to prevent the lubricating oil from leaking from the inside of the speed reducer, ensuring that the lubricating oil is always at an appropriate level, guaranteeing the smooth operation of the gears, improving the transmission accuracy and efficiency, and prolonging the overall service life of the speed reducer.

[0016] 2. By setting the planetary gears, when the reducer that prevents oil leakage is in use, the ring gear body can be fixedly installed at the rear end of the input flange through the fastening bolts, and the output flange can be fixedly installed at the rear end of the ring gear body in cooperation with the fastening bolts. The input shaft and the output shaft are supported by the front bearing and the rear bearing, while maintaining the lubrication state and preventing external pollutants from entering. The input shaft connected inside the input flange transmits power from the outside to the inside of the reducer, and the planetary gears are used to achieve the effects of speed reduction and torque increase. Subsequently, the power after speed reduction and torque increase is transmitted to the required working machinery through the output shaft. The A-type key added on the output shaft can prevent the relative rotation of the output shaft of the reducer, and at the same time transmit the torque of the input shaft to the output shaft, enabling the reducer to work properly and output torque, thereby improving the overall practicality and use efficiency of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of a reducer for preventing oil leakage according to the present invention;

[0018] Figure 2 is a three-dimensional sectional structural schematic diagram of a reducer for preventing oil leakage according to the present invention;

[0019] Figure 3 is an internal three-dimensional structural schematic diagram of a reducer for preventing oil leakage according to the present invention;

[0020] Figure 4 is a front-view sectional structural schematic diagram of a reducer for preventing oil leakage according to the present invention.

[0021] In the figure: 1. Input flange; 2. Input shaft; 3. Snap ring body; 4. Docking block; 5. Clamping groove; 6. Clamping block; 7. Sealing ring; 8. Ring gear body; 9. Output flange; 10. Front bearing; 11. Planetary gear; 12. Rear bearing; 13. Output shaft; 14. A-type key. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] Such as Figures 1 to 4As shown in the figure, a speed reducer for preventing oil leakage includes an input flange 1 and a sealing ring 7. The middle end inside the input flange 1 is connected with an input shaft 2, and a snap ring body 3 is additionally arranged outside the input shaft 2. A docking block 4 is additionally arranged outside the input shaft 2, and clamping grooves 5 are opened at both ends inside the docking block 4. A clamping block 6 is connected inside the clamping groove 5, and a sealing ring 7 is arranged inside the clamping block 6. The internal dimension of the snap ring body 3 is adapted to the external dimension of the input shaft 2, and the input shaft 2 and the snap ring body 3 are in an embedded connection. The outer side of the docking block 4 and the outer side of the input flange 1 are horizontally distributed, and the docking block 4 is fixedly connected to the input flange 1 through bolts. The internal dimension of the clamping groove 5 is adapted to the external dimension of the clamping block 6, and the clamping block 6 is in an embedded connection with the docking block 4 through the clamping groove 5. The number of clamping blocks 6 is set to two, and the two clamping blocks 6 are symmetrically arranged at both ends outside the sealing ring 7 with the central axis of the side surface of the sealing ring 7 as the symmetry axis. The docking block 4 is fixedly installed outside the input flange 1 through fastening bolts. At the same time, the internal dimension of the clamping groove 5 opened at both ends inside the docking block 4 matches the external dimension of the clamping block 6 additionally arranged at both ends outside the sealing ring 7. Thus, the sealing ring 7 is limited and installed inside the docking block 4 through the cooperation of the clamping groove 5 and the clamping block 6. The speed reducer is docked and installed with mechanical equipment by using the input flange 1, so that the input flange 1 is tightly connected with the mechanical equipment. At the same time, the sealing ring 7 is used to prevent the lubricating oil from leaking from the inside of the speed reducer, ensuring that the lubricating oil is always at an appropriate level, guaranteeing the smooth operation of the gears, improving the transmission accuracy and efficiency, and extending the overall service life of the speed reducer.

[0024] As Figures 1 to 4As shown in the figure, a gear ring body 8 is provided at the rear end of the input flange 1, and an output flange 9 is installed outside the gear ring body 8. A front bearing 10 is installed inside the input flange 1, and planet gears 11 are distributed at the rear end of the front bearing 10. A rear bearing 12 is provided at the rear end of the planet gears 11. An output shaft 13 is connected inside the rear bearing 12. An A-type key 14 is added outside the output shaft 13. The outer sides of the gear ring body 8 and the output flange 9 are horizontally distributed, and the gear ring body 8 and the output flange 9 are fixedly connected by bolts. The number of the front bearings 10 is two, and the two front bearings 10 are equidistantly distributed outside the input shaft 2. The outer dimension of the output shaft 13 is adapted to the inner dimension of the rear bearing 12, and the rear bearing 12 and the output shaft 13 are interference-connected. The gear ring body 8 is fixedly installed at the rear end of the input flange 1 through fastening bolts, and the output flange 9 is fixedly installed at the rear end of the gear ring body 8 by cooperating with the fastening bolts. The front bearing 10 and the rear bearing 12 are used to support the input shaft 2 and the output shaft 13, and at the same time, keep the lubrication state and prevent external pollutants from entering. The input shaft 2 connected inside the input flange 1 transmits power from the outside to the inside of the reducer, and the effect of speed reduction and torque increase is achieved through the planet gears 11. Then, the power after speed reduction and torque increase is transmitted to the required working machinery through the output shaft 13. The added A-type key 14 on the output shaft 13 can prevent the relative rotation of the output shaft 13 of the reducer, and at the same time transmit the torque of the input shaft 2 to the output shaft 13, so that the reducer works normally and outputs torque, thereby improving the overall practicality and use efficiency of the reducer.

[0025] In summary, for the reducer that prevents oil leakage, during use, first, the docking block 4 is fixedly installed outside the input flange 1 through fastening bolts. At the same time, the sealing ring 7 is limited and installed inside the docking block 4 through the clamping groove 5 and the clamping block 6. The reducer is docked and installed with the mechanical equipment by using the input flange 1, so that the input flange 1 is tightly connected with the mechanical equipment. At the same time, the sealing ring 7 is used to prevent the lubricating oil from leaking from the inside of the reducer, ensuring that the lubricating oil is always at an appropriate level and guaranteeing the smooth operation of the gears. Then, the front bearing 10 and the rear bearing 12 are used to support the input shaft 2 and the output shaft 13, and at the same time, keep the lubrication state and prevent external pollutants from entering. The input shaft 2 connected inside the input flange 1 transmits power from the outside to the inside of the reducer, and the effect of speed reduction and torque increase is achieved through the planet gears 11. Then, the power after speed reduction and torque increase is transmitted to the required working machinery through the output shaft 13. The added A-type key 14 on the output shaft 13 can prevent the relative rotation of the output shaft 13 of the reducer, and at the same time transmit the torque of the input shaft 2 to the output shaft 13, so that the reducer works normally and outputs torque, thereby improving the overall practicality and use efficiency of the reducer.

[0026] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A speed reducer for preventing oil leakage, comprising an input flange (1) and a sealing ring (7), characterized in that, An input shaft (2) is connected to the middle end inside the input flange (1), and a snap ring body (3) is additionally provided outside the input shaft (2). A docking block (4) is additionally provided outside the input shaft (2), and clamping grooves (5) are opened at both ends inside the docking block (4). A clamping block (6) is connected inside the clamping groove (5), and a sealing ring (7) is arranged inside the clamping block (6). A gear ring body (8) is arranged at the rear end of the input flange (1), and an output flange (9) is installed outside the gear ring body (8). A front bearing (10) is installed inside the input flange (1), a planetary gear (11) is distributed at the rear end of the front bearing (10), a rear bearing (12) is arranged at the rear end of the planetary gear (11), and an output shaft (13) is connected inside the rear bearing (12). An A-type key (14) is additionally provided outside the output shaft (13).

2. The speed reducer for preventing oil leakage according to claim 1, characterized in that, The internal dimension of the snap ring body (3) is adapted to the external dimension of the input shaft (2), and the input shaft (2) and the snap ring body (3) are connected in an embedded manner.

3. The speed reducer for preventing oil leakage according to claim 1, characterized in that, The outer side of the docking block (4) and the outer side of the input flange (1) are horizontally distributed, and the docking block (4) is fixedly connected to the input flange (1) by bolts.

4. A speed reducer for preventing oil leakage according to claim 1, characterized in that The internal dimension of the clamping groove (5) is adapted to the external dimension of the clamping block (6), and the clamping block (6) is connected to the docking block (4) in an embedded manner through the clamping groove (5).

5. A speed reducer for preventing oil leakage according to claim 1, characterized in that, The number of the clamping blocks (6) is two, and the two clamping blocks (6) are symmetrically arranged at both ends outside the sealing ring (7) with the side central axis of the sealing ring (7) as the symmetry axis.

6. A speed reducer for preventing oil leakage according to claim 1, characterized in that, The outer side of the gear ring body (8) and the outer side of the output flange (9) are horizontally distributed, and the gear ring body (8) and the output flange (9) are fixedly connected by bolts.

7. A speed reducer for preventing oil leakage according to claim 1, characterized in that, The number of the front bearings (10) is two, and the two front bearings (10) are equidistantly distributed outside the input shaft (2).

8. A speed reducer for preventing oil leakage according to claim 1, characterized in that, The external dimension of the output shaft (13) is adapted to the internal dimension of the rear bearing (12), and the rear bearing (12) and the output shaft (13) are connected with an interference fit.

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