A worm gear reducer

Abstract

This utility model provides a worm gear reducer, belonging to the field of reducers. It solves the problem of air impurities entering the worm wheel and worm meshing after the heat dissipation holes are opened in the worm gear reducer. This utility model includes a housing, a worm, and a worm wheel. The worm is connected to a motor. A heat dissipation groove is opened on the outer wall of the housing. A mounting part is provided outside the heat dissipation groove. The mounting part has a ventilation groove. An insertion groove is opened in the ventilation groove, and a dustproof net is inserted into the insertion groove. Bearings are installed at both ends of the worm. An oil storage chamber is set above the bearings. An oil storage sponge is installed in the oil storage chamber. The dustproof net has a fixing plate with a locking block. A fixing groove is opened in the mounting part, and a locking slot is provided in the fixing groove. Advantages of this utility model: The dustproof net added at the heat dissipation holes intercepts impurities filtered in the airflow; lubrication is achieved by squeezing the oil storage sponge with a push plate, and lubricating oil is replenished by injecting oil into the oil storage sponge, which improves lubrication efficiency; the fit between the locking block and the locking slot facilitates the disassembly and replacement of the dustproof net.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducers, and relates to a speed reducer, and more particularly to a worm gear speed reducer. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine. By inputting torque and speed to the gear with a small number of teeth and outputting torque to the gear with a large number of teeth, it achieves a reduction in speed and an increase in torque output.

[0003] When worm gears mesh, they generate a significant amount of heat within the gearbox, causing the internal temperature to rise. This heat can lead to meshing problems due to thermal expansion of the worm gear and worm. To address this, cooling holes are typically created on the gearbox housing. However, these holes open the gearbox housing to the outside environment. Consequently, external impurities can easily accumulate on the worm gear and worm. Increased dust and other contaminants accelerate wear between the worm gear and worm, further affecting their meshing. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a worm gear reducer that can effectively filter external impurities in the air while maintaining heat dissipation.

[0005] This utility model can be achieved through the following technical solution: a worm gear reducer, comprising a housing, a worm, and a worm wheel, wherein the worm is connected to a motor, a heat dissipation groove is provided on the outer wall of the housing, an installation part is provided on the outer side of the heat dissipation groove, a ventilation groove is provided on the installation part, an insertion groove is provided on the ventilation groove, a dustproof net is inserted into the insertion groove, bearings are installed at both ends of the worm, an oil storage chamber is provided above the bearings, and an oil storage sponge is installed in the oil storage chamber.

[0006] In the aforementioned worm gear reducer, a push plate is installed above the oil storage sponge in the oil storage chamber, the push plate is connected to a push rod, and a spring is provided between the push plate and the oil storage chamber.

[0007] In the aforementioned worm gear reducer, a sealing ring is provided at the bottom of the push rod.

[0008] In the aforementioned worm gear reducer, an oil injection channel is provided inside the push rod, and a plug is installed inside the oil injection channel, with threads provided on the plug.

[0009] In the aforementioned worm gear reducer, a fixing groove is provided on the insertion slot, and a fixing plate is provided on the dustproof net.

[0010] In the aforementioned worm gear reducer, a locking block is installed inside the fixed plate, a second spring is provided between the locking block and the fixed plate, and a locking groove is formed on the fixed groove.

[0011] In the aforementioned worm gear reducer, the locking block is provided with a protrusion, and a horizontal plate is provided on the protrusion.

[0012] In the aforementioned worm gear reducer, a sealing ring is provided on the fixed plate, and extension plates are provided on both sides of the dustproof net, with sealing gaskets installed on the extension plates.

[0013] Compared with the prior art, the advantages of this utility model are as follows: a dustproof net is added at the heat dissipation hole to intercept impurities filtered in the airflow; lubrication is achieved by squeezing the oil storage sponge with a push plate, and lubricating oil is replenished by injecting oil into the oil storage sponge, which facilitates the improvement of lubrication efficiency; the cooperation between the card block and the card slot facilitates the disassembly and replacement of the dustproof net, and the horizontal plate makes it easy for the user to grip the dustproof net. Attached Figure Description

[0014] Figure 1 It is a 3D diagram of a worm gear reducer;

[0015] Figure 2 This is a sectional view of a worm gear reducer;

[0016] Figure 3 This is a 3D view of the housing of a worm gear reducer;

[0017] Figure 4 This is a cross-sectional view of the dustproof screen of a worm gear reducer;

[0018] Figure 5 yes Figure 2 Enlarged view of center circle A;

[0019] The components include: 1. Housing; 11. Heat dissipation groove; 12. Mounting part; 121. Ventilation groove; 122. Insertion groove; 123. Fixing groove; 124. Slot; 13. Oil reservoir; 2. Worm gear; 3. Worm; 4. Motor; 5. Dustproof net; 51. Fixing plate; 52. Sealing ring; 53. Extension plate; 54. Sealing gasket; 6. Bearing; 7. Oil reservoir sponge; 71. Push plate; 72. Push rod; 721. Oil injection channel; 73. Spring 1; 74. Sealing ring; 75. Plug; 751. Thread; 8. Slot; 81. Spring 2; 82. Protrusion; 83. Horizontal plate. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] like Figures 1 to 5 As shown, this utility model can be implemented through the following embodiments: A worm gear reducer includes a housing 1, a worm 3 and a worm wheel 2. The worm 3 is connected to a motor 4. A heat dissipation groove 11 is provided on the outer wall of the housing 1. An installation part 12 is provided on the outer side of the heat dissipation groove 11. A ventilation groove 121 is provided on the installation part 12. An insertion groove 122 is provided on the ventilation groove 121. A dustproof net 5 is inserted into the insertion groove 122. Bearings 6 are installed at both ends of the worm 3. An oil storage chamber 13 is provided above the bearings 6. An oil storage sponge 7 is installed in the oil storage chamber 13.

[0022] The mounting part 12 is located outside the heat dissipation hole and is provided with a ventilation groove 121. The ventilation groove 121 guides the airflow into the heat dissipation hole to dissipate heat inside the housing 1. A dustproof net 5 is inserted into the insertion groove 122 to intercept dust and other impurities carried in the air. The bearing 6 is used to support the worm gear 3, and the oil storage chamber 13 is used to store oil through the oil storage sponge 7, so as to facilitate lubrication of the bearing 6 and the worm gear 3 at any time.

[0023] like Figure 1 and Figure 2 As shown, a push plate 71 is installed above the oil-storing sponge 7 in the oil storage chamber 13. The push plate 71 is connected to a push rod 72, and a spring 73 is provided between the push plate 71 and the oil storage chamber 13. The push plate 71 is used to squeeze the oil-storing sponge 7, causing the oil in the oil-storing sponge 7 to flow out to the bearing 6 to lubricate the bearing 6. The push rod 72 is used by maintenance personnel to push the push plate 71 from outside the housing 1. The spring 73 is used to reset the push rod 72, which facilitates repeated squeezing of the oil-storing sponge 7 and prevents the oil in the oil-storing sponge 7 from being squeezed out all at once.

[0024] like Figure 2 and Figure 5 As shown, a sealing ring 74 is provided at the bottom of the push rod 72. The sealing ring 74 is provided to isolate the oil reservoir 13 from the outside, reducing the entry of outside air when the push plate 71 is in standby mode.

[0025] like Figure 1 , Figure 2 and Figure 5 As shown, an oil injection channel 721 is provided inside the push rod 72, and a plug 75 is installed inside the oil injection channel 721. The plug 75 is provided with a thread 751. By providing an oil injection channel 721, it is convenient to directly inject oil into the oil reservoir 13, thereby improving the oil injection efficiency. The plug 75 is installed by the thread 751, which facilitates the sealing between the plug 75 and the oil injection channel 721, and also makes it easy to remove the plug 75.

[0026] like Figure 1 and Figure 3 As shown, a fixing groove 123 is provided on the insertion groove 122, and a fixing plate 51 is provided on the dustproof net 5. The fixing groove 123 and the fixing plate 51 cooperate to facilitate the positioning and installation of the dustproof net 5.

[0027] like Figure 1 and Figure 4 As shown, a locking block 8 is installed inside the fixing plate 51, and a second spring 81 is provided between the locking block 8 and the fixing plate 51. A slot 124 is opened on the fixing groove 123. The cooperation between the locking block 8 and the slot 124 fixes the dustproof net 5 in the insertion groove 122, preventing the dustproof net 5 from jumping when the reducer rotates; the second spring 81 is used to provide the movement distance of the locking block 8 in the fixing plate 51 and to reset the locking block 8, so that the locking block 8 is engaged in the slot 124.

[0028] like Figure 1 and Figure 4 As shown, the locking block 8 is provided with a protrusion 82, and a horizontal plate 83 is provided on the protrusion 82. The protrusion 82 is used to push the locking block 8 to move, and the horizontal plate 83 is provided to facilitate lifting the dustproof net 5 after the locking block 8 is pushed, thereby improving the efficiency of replacing and installing the dustproof net 5.

[0029] like Figure 4 As shown, a sealing ring 52 is provided on the fixed plate 51, and extension plates 53 are provided on both sides of the dustproof net 5. Sealing gaskets 54 are installed on the extension plates 53. The sealing ring 52 is used to enhance the sealing between the fixed plate 51 and the insertion groove 122; the extension plates 53 and the sealing gaskets 54 are used to enhance the sealing between the dustproof net 5 and the insertion groove 122, preventing airflow from entering the reducer through the gap between the dustproof net 5 and the mounting part 12.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0031] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A worm and gear speed reducer, comprising a housing (1), a worm (3) and a worm wheel (2), the worm (3) is connected with a motor (4), a heat dissipation groove (11) is arranged on the outer wall of the housing (1), characterized in that: An installation part (12) is provided on the outside of the heat dissipation slot (11). A ventilation slot (121) is provided on the installation part (12). An insertion slot (122) is provided on the ventilation slot (121). A dustproof net (5) is inserted into the insertion slot (122). Bearings (6) are installed at both ends of the worm gear (3). An oil storage chamber (13) is provided above the bearings (6). An oil storage sponge (7) is installed in the oil storage chamber (13).

2. The worm gear reducer according to claim 1, characterized in that, The oil storage chamber (13) has a push plate (71) installed above the oil storage sponge (7), the push plate (71) is connected to a push rod (72), and a spring (73) is provided between the push plate (71) and the oil storage chamber (13).

3. A worm gear reducer according to claim 2, characterized in that, A sealing ring (74) is provided at the bottom of the push rod (72).

4. A worm gear reducer according to claim 2, characterized in that, The push rod (72) has an oil injection channel (721) inside, and a plug (75) is installed inside the oil injection channel (721). The plug (75) has a thread (751).

5. A worm gear reducer according to claim 1, characterized in that, The insertion slot (122) is provided with a fixing slot (123), and the dustproof net (5) is provided with a fixing plate (51).

6. A worm gear reducer according to claim 5, characterized in that, A locking block (8) is installed inside the fixing plate (51), and a spring (81) is provided between the locking block (8) and the fixing plate (51). A locking slot (124) is opened on the fixing groove (123).

7. A worm gear reducer according to claim 6, characterized in that, The card block (8) is provided with a protrusion (82), and a horizontal plate (83) is provided on the protrusion (82).

8. A worm gear reducer according to claim 6, characterized in that, A sealing ring (52) is provided on the fixing plate (51), and extension plates (53) are provided on both sides of the dustproof net (5). A sealing gasket (54) is installed on the extension plate (53).

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