Double-bearing rotary speed reducer

Abstract

According to the double-bearing rotary speed reducer, the sealing assembly is arranged, the sealing cover is inserted into the inserting groove, the rubber sealing ring is attached to the surface of the sealing cover, the sealing performance of the double-bearing rotary speed reducer is guaranteed through the rubber sealing ring, and meanwhile the sealing cover can cover and protect the connecting position; at the moment, the connecting position of the input shaft and the speed reducer shell can be protected, external suspended particles can be blocked, meanwhile, the sealing performance of protection can be guaranteed, and the external suspended particles cannot enter the rotary speed reducer through the connecting position.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing reducers, in particular to a double-bearing slewing reducer. Background Technique

[0002] A slewing reducer mainly consists of components such as a box body, gears, shafts, bearings, etc. In the existing double-bearing slewing reducer, the connection between the input shaft and the housing is usually through bearings, and only a sealing ring is usually set at the connection for sealing, which cannot protect the connection. After long-term use of the sealing ring, if the sealing ring is damaged, the sealing performance at the transmission structure of the reducer becomes poor, and external suspended particles easily enter the interior of the reducer through the connection. After the particles enter the interior of the reducer, it will shorten the service life of the reducer. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a double-bearing slewing reducer, which solves the problems in the background.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0005] The double-bearing slewing reducer includes a reducer housing and a sealing cover. A speed reduction assembly is arranged inside the reducer housing, bearings are arranged on the inner wall of the reducer housing, mounting nuts are arranged on the surface of the speed reduction assembly, and the mounting nuts are connected to the inner rings of the bearings. A connection assembly is arranged on the surface of the reducer housing, a sealing assembly for sealing is arranged on the surface of the reducer housing, balls are arranged on the inner wall of the sealing assembly, a mounting assembly for sealing is arranged on the surface of the sealing cover and the surface of the speed reduction assembly, and a coupling is arranged on the surface of the speed reduction assembly.

[0006] Further, the speed reduction assembly includes a worm. The worm is rotatably connected to the inner wall of the reducer housing. A worm gear is meshed with the surface of the worm, and the surface of the worm gear is fixedly connected to the inner ring of the bearing through a mounting nut. An input shaft is fixedly connected to the end of the worm, and the input shaft is rotatably connected to the reducer housing.

[0007] Further, the connection assembly includes a connection retaining ring. The connection retaining ring is attached to the surface of the reducer housing. Connection screw holes are opened on the surface of the reducer housing, and connection nuts are threadedly connected to the inner walls of the connection screw holes.

[0008] Further, the sealing assembly includes a plug-in groove. The plug-in groove is opened on the surface of the reducer housing, and the sealing cover is movably plugged into the plug-in groove. A component groove is opened on the surface of the reducer housing, and the balls are arranged on the inner wall of the component groove. A rubber sealing ring is arranged on the inner wall of the plug-in groove.

[0009] Further, the installation component includes a connection ring. The inner wall of the sealing cover is fixedly connected with the connection ring, and the connection ring is movably inserted into the insertion slot. The surface of the sealing cover is fixedly connected with an installation block. An installation screw hole is formed on the surface of the input shaft, and the installation block is connected with the installation screw hole through a nut.

[0010] Further, the number of the installation nuts is two, and the two installation nuts are symmetrically distributed on the surface of the worm gear.

[0011] For this double-bearing rotary reducer, the outer ring of the bearing is installed on the inner wall of the reducer housing. The inner ring of the bearing supports and installs the worm gear through the installation nut. The design of the two bearings can provide stronger supporting force and stability. The connection component is provided to cover the internal structure of the reducer housing. The sealing component is provided. The sealing cover is inserted into the insertion slot, and the rubber sealing ring is attached to the surface of the sealing cover. Its sealing performance is ensured through the rubber sealing ring. At the same time, the sealing cover can cover and protect the connection part. The connection ring is inserted into the component slot, and the end face of the connection ring is attached to the ball. The installation block and the installation screw hole are provided to fixedly install the sealing cover outside the input shaft. When the input shaft rotates, the sealing cover can rotate along with the input shaft. The setting of the ball can cooperate with the rotation process of the sealing cover. At this time, the connection part between the input shaft and the reducer housing can be protected. While being able to block the external suspended particles, the sealing performance of the protection can also be ensured, so that the external suspended particles will not enter the interior of the rotary reducer through the connection part. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0013] Figure 2 It is a first partial structure sectional view;

[0014] Figure 3 It is an enlarged schematic diagram of the structure at A;

[0015] Figure 4 It is a schematic diagram of the structure of the sealing cover and the installation component;

[0016] Figure 5 It is a second partial structure sectional view.

[0017] In the figure: 1. Reducer housing; 2. Reduction component; 201. Worm; 202. Worm gear; 203. Input shaft; 3. Bearing; 4. Installation nut; 5. Connection component; 501. Connection retaining ring; 502. Connection screw hole; 503. Connection nut; 6. Sealing component; 601. Insertion slot; 602. Component slot; 603. Rubber sealing ring; 7. Ball; 8. Sealing cover; 9. Installation component; 901. Connection ring; 902. Installation block; 903. Installation screw hole; 10. Coupling. Detailed implementation mode

[0018] As Figures 1-5 shown, the double-bearing rotary reducer includes a reducer housing 1 and a sealing cover 8. A reduction component 2 is arranged inside the reducer housing 1. A bearing 3 is arranged on the inner wall of the reducer housing 1. An installation nut 4 is arranged on the surface of the reduction component 2, and the installation nut 4 is connected to the inner ring of the bearing 3. A connection component 5 is arranged on the surface of the reducer housing 1. A sealing component 6 for sealing is arranged on the surface of the reducer housing 1. A ball 7 is arranged on the inner wall of the sealing component 6. An installation component 9 for sealing is arranged on the surface of the sealing cover 8 and the surface of the reduction component 2. A coupling 10 is arranged on the surface of the reduction component 2; specifically, for this double-bearing rotary reducer, the reduction component 2 is arranged. The power is input by the power structure. The teeth between its components mesh with each other, and the reduction ratio of the reducer is determined by its tooth number ratio. The bearing 3 is arranged. The outer ring of the bearing 3 is installed on the inner wall of the reducer housing 1. The bearing 3 supports and installs the components of the reduction component 2 through the installation nut 4. The design of the two bearings 3 can provide stronger support force and stability, effectively reducing the deformation and vibration of the rotating components to meet the working requirements of the rotary reducer. The connection component 5 is arranged. After the reduction component 2 and the bearing 3 are installed, the connection component 5 is installed outside the reducer housing 1 to cover the internal structure. The sealing component 6 is arranged. At the connection of the transmission structure, the sealing cover 8 is inserted into the sealing component 6. At the same time, through the cooperation of the installation component 9, the sealing cover 8 is installed outside the connection to protect the outside of the connection and can also seal the connection. When the transmission structure rotates, the sealing cover 8 can rotate with the transmission structure. The ball 7 is arranged. To cooperate with the rotation process of the sealing cover 8, at this time, the connection can be protected. While being able to block the suspended particulate matter in the outside world, it can also ensure the sealing performance of the protection, so that the suspended particulate matter in the outside world will not enter the interior of the rotary reducer through the connection.

[0019] As Figure 1 、 Figure 2 、 Figure 5As shown in the figure, the speed reduction assembly 2 includes a worm 201. The inner wall of the speed reducer housing 1 is rotatably connected to the worm 201. A worm gear 202 is meshed with the surface of the worm 201, and the surface of the worm gear 202 is fixedly connected to the inner ring of the bearing 3 through a mounting nut 4. The end of the worm 201 is fixedly connected to an input shaft 203, and the input shaft 203 is rotatably connected to the speed reducer housing 1. Specifically, for the setting of the speed reduction assembly 2, the output end of the power structure is connected to the input shaft 203 through a coupling 10, and then the power is input through the input shaft 203. Through the mutual meshing of the teeth between the worm 201 and the worm gear 202, and the tooth number ratio determines the reduction ratio of the speed reducer. In terms of material, high-strength alloy steel or other wear-resistant and corrosion-resistant materials are usually used, and its hardness and strength are improved through processes such as heat treatment. For the setting of the bearing 3, the outer ring of the bearing 3 is installed on the inner wall of the speed reducer housing 1, and the bearing 3 supports and installs the worm gear 202 through the mounting nut 4. The design of the two bearings 3 can provide stronger support force and stability, effectively reducing the deformation and vibration of the worm gear 202 during rotation to meet the working requirements of the slewing reducer.

[0020] As Figure 1 , Figure 2 shown in the figure, the connection assembly 5 includes a connection retaining ring 501. The connection retaining ring 501 is attached to the surface of the speed reducer housing 1. A connection screw hole 502 is provided on the surface of the speed reducer housing 1, and a connection nut 503 is threadedly connected to the inner wall of the connection screw hole 502. Specifically, for the setting of the connection assembly 5, after the speed reduction assembly 2 and the bearing 3 are installed in the speed reducer housing 1, the connection retaining ring 501 is installed outside the speed reducer housing 1, and the connection nut 503 is screwed into the connection retaining ring 501 to fix the connection retaining ring 501 outside the speed reducer housing 1, thereby covering the internal structure of the speed reducer housing 1.

[0021] As Figure 3 shown in the figure, the sealing assembly 6 includes a plug-in groove 601. The plug-in groove 601 is provided on the surface of the speed reducer housing 1, and the sealing cover 8 is movably plugged into the plug-in groove 601. A component groove 602 is provided on the surface of the speed reducer housing 1, and the ball 7 is arranged on the inner wall of the component groove 602. A rubber sealing ring 603 is arranged on the inner wall of the plug-in groove 601. Specifically, for the setting of the sealing assembly 6, the plug-in groove 601 is used for the plug-in connection of the sealing cover 8. At the same time, a rubber sealing ring 603 is provided in the plug-in groove 601. At this time, the rubber sealing ring 603 is attached to the surface of the sealing cover 8 to ensure its sealing performance through the rubber sealing ring 603. At the same time, the sealing cover 8 can cover and protect the connection part. The component groove 602 is used for the connection of the component 9.

[0022] As Figure 3 , Figure 4As shown in the figure, the mounting assembly 9 includes a connecting ring 901. The inner wall of the sealing cover 8 is fixedly connected with the connecting ring 901, and the connecting ring 901 is movably inserted into the insertion slot 601. The surface of the sealing cover 8 is fixedly connected with a mounting block 902. Mounting screw holes 903 are formed on the surface of the input shaft 203, and the mounting block 902 is connected to the mounting screw holes 903 through nuts. Specifically, a mounting assembly 9 is provided on the sealing cover 8. The connecting ring 901 is inserted into the component slot 602. At the same time, the end face of the connecting ring 901 is in contact with the ball 7. The arrangement of the mounting block 902 and the mounting screw holes 903 allows the sealing cover 8 to be fixedly installed outside the input shaft 203 by screwing in the nuts. Thus, when the input shaft 203 rotates, the sealing cover 8 can rotate with the input shaft 203. The arrangement of the balls 7 can cooperate with the rotation process of the sealing cover 8.

[0023] As Figure 2 shown, there are two mounting nuts 4, and the two mounting nuts 4 are symmetrically distributed on the surface of the worm gear 202. The worm gear 202 is a disk-shaped structure with tooth profiles. Specifically, the arrangement of the two mounting nuts 4 enables the worm gear 202 to be stably installed on the inner ring of the bearing 3.

[0024] Working principle: For this double-bearing rotary reducer, with the setting of the reduction assembly 2, the output end of the power structure is connected to the input shaft 203 through the coupling 10. Thus, the power is input through the input shaft 203. The teeth of the worm 201 and the worm gear 202 mesh with each other, and the reduction ratio of the reducer is determined by their tooth number ratio. With the setting of the bearing 3, the outer ring of the bearing 3 is installed on the inner wall of the reducer housing 1. The bearing 3 supports and installs the worm gear 202 through the mounting nut 4. The design of the two bearings 3 can provide stronger support force and stability. With the setting of the connection assembly 5, after the reduction assembly 2 and the bearing 3 are installed in the reducer housing 1, the connecting retaining ring 501 is installed outside the reducer housing 1. The connecting nut 503 is screwed into the connecting retaining ring 501 to fix the connecting retaining ring 501 outside the reducer housing 1, thereby covering the internal structure of the reducer housing 1. With the setting of the sealing assembly 6, at the connection between the input shaft 203 and the reducer housing 1, the sealing cover 8 is inserted into the insertion slot 601. A rubber sealing ring 603 is arranged in the insertion slot 601. At this time, the rubber sealing ring 603 is in contact with the surface of the sealing cover 8 to ensure its sealing performance through the rubber sealing ring 603. At the same time, the sealing cover 8 can cover and protect the connection. A mounting assembly 9 is provided on the sealing cover 8. The connecting ring 901 is inserted into the component slot 602. At the same time, the end face of the connecting ring 901 is in contact with the ball 7. The arrangement of the mounting block 902 and the mounting screw holes 903 allows the sealing cover 8 to be fixedly installed outside the input shaft 203 by screwing in the nuts. Thus, when the input shaft 203 rotates, the sealing cover 8 can rotate with the input shaft 203. The arrangement of the balls 7 can cooperate with the rotation process of the sealing cover 8.

Claims

1. Double-bearing rotary reducer, including a reducer housing (1) and a sealing cover (8), characterized in that: Inside the reducer housing (1), a reduction component (2) is provided. A bearing (3) is provided on the inner wall of the reducer housing (1). An installation nut (4) is provided on the surface of the reduction component (2), and the installation nut (4) is connected to the inner ring of the bearing (3). A connection component (5) is provided on the surface of the reducer housing (1). A sealing component (6) for sealing is provided on the surface of the reducer housing (1). A ball (7) is provided on the inner wall of the sealing component (6). An installation component (9) for sealing is provided between the surface of the sealing cover (8) and the surface of the reduction component (2). A coupling (10) is provided on the surface of the reduction component (2).

2. The double-bearing slewing speed reducer according to claim 1, characterized in that: The reduction component (2) includes a worm (201). The worm (201) is rotatably connected to the inner wall of the reducer housing (1). A worm gear (202) is meshed with the surface of the worm (201), and the surface of the worm gear (202) is fixedly connected to the inner ring of the bearing (3) through the installation nut (4). One end of the worm (201) is fixedly connected to an input shaft (203), and the input shaft (203) is rotatably connected to the reducer housing (1).

3. The double-bearing slewing speed reducer according to claim 1, wherein: The connection component (5) includes a connection retaining ring (501). The connection retaining ring (501) is fitted on the surface of the reducer housing (1). A connection screw hole (502) is provided on the surface of the reducer housing (1). A connection nut (503) is threadedly connected to the inner wall of the connection screw hole (502).

4. The double-bearing slewing speed reducer according to claim 2, wherein: The sealing component (6) includes a plug-in groove (601). The plug-in groove (601) is provided on the surface of the reducer housing (1), and the sealing cover (8) is movably inserted into the plug-in groove (601). A component groove (602) is provided on the surface of the reducer housing (1), and the ball (7) is provided on the inner wall of the component groove (602). A rubber sealing ring (603) is provided on the inner wall of the plug-in groove (601).

5. The double-bearing slewing speed reducer according to claim 4, characterized in that: The installation component (9) includes a connection ring (901). The connection ring (901) is fixedly connected to the inner wall of the sealing cover (8), and the connection ring (901) is movably inserted into the plug-in groove (601). An installation block (902) is fixedly connected to the surface of the sealing cover (8). An installation screw hole (903) is provided on the surface of the input shaft (203), and the installation block (902) is connected to the installation screw hole (903) through a nut.

6. The double-bearing slewing speed reducer according to claim 2, wherein: The number of the installation nuts (4) is two, and the two installation nuts (4) are symmetrically distributed on the surface of the worm gear (202).

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