Novel walking speed reducer

Abstract

The utility model provides a novel walking speed reducer, and belongs to the technical field of speed reducers. The novel walking speed reducer comprises a speed reducer body, an output hole is formed in the speed reducer body, a bearing is installed in the output hole, a sealing piece is further inserted into the output hole, and a framework oil seal is connected into the sealing piece. An output hole is formed in a speed reducer body, a bearing and a sealing sleeve are installed in the output hole, a framework oil seal and a spiral sealing ring made of an oil-resistant, abrasion-resistant and high-temperature-resistant rubber material are inserted in the sealing sleeve, and an output shaft of the speed reducer body penetrates through the bearing, the framework oil seal and the spiral sealing ring. The purpose of multiple sealing of the output shaft of the speed reducer body is achieved, the sealing effect is improved, the spiral sealing ring is pressed to the bearing through the middle ring in the sealing sleeve, the framework oil seal is pressed into the sealing sleeve through the pressing ring, and the purpose that the sealing piece and the framework oil seal are convenient to disassemble and assemble is achieved.

Description

Technical Field

[0001] This application relates to the field of speed reducers, and more specifically, to a novel travel speed reducer. Background Technology

[0002] Tracked tractors are increasingly being used in modern agricultural production. The drive wheels of tracked tractors drive the tracks to rotate, which is used to drive the overall operation of the tractor. The drive wheels are connected to the travel reducer. Existing travel reducers have the problem of poor sealing effect in their sealing structure. Common seals are prone to wear and aging, leading to seal failure. This allows dust, mud and other impurities to enter the reducer. These impurities will accelerate the wear of gears and other parts, reduce transmission efficiency, and even cause failures, seriously affecting the service life of the reducer and the normal operation of the tractor. To address this, we have proposed a new type of travel reducer. Utility Model Content

[0003] To overcome the above shortcomings, this application provides a novel travel speed reducer, which aims to improve the poor sealing effect of the existing speed reducer sealing structure.

[0004] This application provides a novel walking speed reducer, including a speed reducer body. The speed reducer body has an output hole, a bearing is installed in the output hole, a seal is inserted in the output hole, and a skeleton oil seal is connected in the seal. The output shaft of the speed reducer body passes through the bearing, the seal and the skeleton oil seal.

[0005] In one specific implementation, the seal includes a sealing sleeve inserted into the output hole, and a spiral sealing ring is installed inside the sealing sleeve. The sealing sleeve and the spiral sealing ring are fitted onto the output shaft of the reducer body, and the skeleton oil seal is inserted into the sealing sleeve.

[0006] In one specific implementation, a connecting plate is fixedly connected to one end of the sealing sleeve, and the connecting plate is fixedly connected to the outer wall of the reducer body.

[0007] In one specific implementation, one end of the sealing sleeve is pressed against one end sidewall of the bearing, and a sealing ring is fixedly sleeved on the outer wall of the sealing sleeve, with the sealing ring in contact with the inner wall of the output hole.

[0008] In one specific implementation, an intermediate ring is installed on the inner wall of the sealing sleeve, the spiral sealing ring is located on the left side of the intermediate ring, the skeleton oil seal is located on the right side of the intermediate ring, and the bearing and the intermediate ring are arranged to press against the spiral sealing ring.

[0009] In one specific implementation, a pressure ring is threaded onto the inner wall of the sealing sleeve, and the pressure ring presses the skeleton oil seal against the side wall of the intermediate ring.

[0010] In one specific implementation, a connecting block is fixedly installed on one end sidewall of the pressure ring.

[0011] In one specific implementation, the reducer body is provided with an upper housing and a lower housing, and a frame-type sealing ring is connected between the upper housing and the lower housing.

[0012] The beneficial effects of this application are as follows: By opening an output hole on the reducer body, installing a bearing and a sealing sleeve inside the output hole, inserting a skeleton oil seal and a spiral sealing ring made of oil-resistant, wear-resistant, and high-temperature-resistant rubber material inside the sealing sleeve, and having the output shaft of the reducer body pass through the bearing, the skeleton oil seal, and the spiral sealing ring, the purpose of multiple sealing of the output shaft of the reducer body is achieved, thereby improving the sealing effect. The middle ring inside the sealing sleeve presses the spiral sealing ring onto the bearing, while the pressure ring presses the skeleton oil seal into the sealing sleeve, thereby facilitating the disassembly and assembly of the seals and the skeleton oil seal. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a cross-sectional structural schematic diagram of the novel walking speed reducer provided in the embodiments of this application;

[0015] Figure 2 A schematic diagram of the sealing sleeve disassembly structure of the novel walking speed reducer provided in this application embodiment;

[0016] Figure 3 A schematic diagram of the spiral sealing ring structure of the novel walking speed reducer provided in the embodiments of this application;

[0017] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 10-Gearbox body; 110-Upper housing; 120-Lower housing; 20-Output hole; 30-Bearing; 40-Seal; 410-Sealing sleeve; 420-Spiral sealing ring; 430-Connecting disc; 440-Intermediate ring; 450-Pressure ring; 460-Connecting block; 470-Sealing ring; 50-Skeleton oil seal. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0020] Please see Figure 1-4 This application provides a novel walking speed reducer, including a speed reducer body 10. The speed reducer body 10 has an output hole 20, a bearing 30 is installed in the output hole 20, and a seal 40 is also inserted in the output hole 20. A skeleton oil seal 50 is connected in the seal 40. The output shaft of the speed reducer body 10 passes through the bearing 30, the seal 40, and the skeleton oil seal 50. Specifically, the seal 40 and the skeleton oil seal 50 are sleeved on the output shaft of the speed reducer body 10 to achieve the purpose of sealing. It should be noted that the aforementioned bearing 30, seal 40, and skeleton oil seal 50 are also installed on the drive shaft of the speed reducer body 10. The output shaft of the speed reducer body 10 is connected to the drive wheel of a tracked tractor.

[0021] See Figure 4 The sealing element 40 includes a sealing sleeve 410, which is inserted into the output hole 20 and has a spiral sealing ring 420 installed inside it. The sealing sleeve 410 and the spiral sealing ring 420 are fitted onto the output shaft of the reducer body 10. The skeleton oil seal 50 is inserted into the sealing sleeve 410. During installation, the spiral sealing ring 420 is inserted into the sealing sleeve 410, and then the sealing sleeve 410 and the spiral sealing ring 420 are fitted onto the output shaft of the reducer body 10. The sealing sleeve 410 will compress the spiral sealing ring 420, so that the spiral sealing ring 420 is compressed onto the inner ring of the bearing 30 to achieve the purpose of sealing the output shaft of the reducer body 10. The spiral sealing ring 420 is made of oil-resistant, wear-resistant, and high-temperature resistant rubber material.

[0022] See Figure 2 and 4 One end of the sealing sleeve 410 is fixedly connected to a connecting plate 430. The connecting plate 430 is fixedly connected to the outer wall of the reducer body 10. In a specific configuration, the connecting plate 430 is connected to the outer wall of the reducer body 10 by screws. Specifically, several through holes are opened on the connecting plate 430, and several screw holes are opened on the outer wall of the reducer body 10. Several screws pass through several through holes and are connected to several screw holes to fix the connecting plate 430 to the outer wall of the reducer body 10.

[0023] See Figure 4One end of the sealing sleeve 410 is pressed against the side wall of one end of the bearing 30. A sealing ring 470 is fixedly sleeved on the outer wall of the sealing sleeve 410. The sealing ring 470 is in contact with the inner wall of the output hole 20. Specifically, the side wall of the sealing sleeve 410 is pressed against the outer ring of the sealing ring 470, and the sealing sleeve 410 is inserted into the output hole 20, with the sealing ring 470 in contact with the inner wall of the output hole 20.

[0024] See Figure 4 An intermediate ring 440 is installed on the inner wall of the sealing sleeve 410. A spiral sealing ring 420 is located to the left of the intermediate ring 440, and a skeleton oil seal 50 is located to the right of the intermediate ring 440. The bearing 30 and the intermediate ring 440 compress the spiral sealing ring 420. In the specific arrangement, the intermediate ring 440 divides the interior of the sealing sleeve 410 into two receiving spaces. The spiral sealing ring 420 is located in the left receiving space, while the skeleton oil seal 50 is located in the right receiving space. Thus, the intermediate ring 440 cooperates with the bearing 30 to compress the intermediate spiral sealing ring 420, thereby making the spiral seal... The ring 420 is in close contact with the output shaft of the reducer body 10. Furthermore, a pressure ring 450 is threadedly connected to the inner wall of the sealing sleeve 410. The pressure ring 450 presses the skeleton oil seal 50 onto the side wall of the intermediate ring 440. A threaded groove is opened on the inner wall of the sealing sleeve 410, and an external thread that matches the threaded groove is opened on the outer wall of the pressure ring 450, thereby installing the pressure ring 450 inside the sealing sleeve 410 to fix the skeleton oil seal 50. Furthermore, a connecting block 460 is fixedly installed on one side wall of the pressure ring 450 to facilitate the rotation of the pressure ring 450.

[0025] See Figure 2 The reducer body 10 is provided with an upper housing 110 and a lower housing 120. A frame-type sealing ring (not shown in the figure) is connected between the upper housing 110 and the lower housing 120. The components of the reducer body 10 are installed in the upper housing 110 and the lower housing 120.

[0026] When using this novel walking speed reducer: the output shaft of the speed reducer body 10 passes through the output hole 20, the bearing 30 is pressed into the output hole 20 and simultaneously sleeved on the output shaft of the speed reducer body 10, the spiral sealing ring 420 is inserted into the sealing sleeve 410 from the left side, and then the sealing sleeve 410 is sleeved on the output shaft of the speed reducer body 10 and simultaneously inserted into the output hole 20, the sealing sleeve 410 is pressed into the output hole 20, one end of the sealing sleeve 410 is pressed onto the bearing 30, and then it is fixedly connected to the outer wall of the speed reducer body 10 through the connecting plate 430, finally the skeleton oil seal 50 is sleeved on the output shaft of the speed reducer body 10 and simultaneously inserted into the sealing sleeve 410, the skeleton oil seal 50 is pressed into the sealing sleeve 410, and the pressure ring 450 is connected to the sealing sleeve 410 to fix the skeleton oil seal 50.

[0027] It should be noted that the specific model and specifications of the reducer body 10 and the skeleton oil seal 50 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0028] The power supply and its principle for the reducer body 10 are clear to those skilled in the art and will not be described in detail here.

[0029] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A novel walking speed reducer, characterized in that, The device includes a reducer body (10), on which an output hole (20) is provided. A bearing (30) is installed in the output hole (20), and a seal (40) is also inserted in the output hole (20). A skeleton oil seal (50) is connected in the seal (40). The output shaft of the reducer body (10) passes through the bearing (30), the seal (40) and the skeleton oil seal (50). The seal (40) includes a sealing sleeve (410), which is inserted in the output hole (20) and has a spiral sealing ring (420) installed inside it. The sealing sleeve (410) and the spiral sealing ring (420) are fitted on the output shaft of the reducer body (10), and the skeleton oil seal (50) is inserted in the sealing sleeve (410).

2. The novel walking speed reducer according to claim 1, characterized in that, One end of the sealing sleeve (410) is fixedly connected to a connecting plate (430), and the connecting plate (430) is fixedly connected to the outer wall of the reducer body (10).

3. The novel walking speed reducer according to claim 1, characterized in that, One end of the sealing sleeve (410) is pressed against one end side wall of the bearing (30), and a sealing ring (470) is fixedly sleeved on the outer wall of the sealing sleeve (410). The sealing ring (470) is in contact with the inner wall of the output hole (20).

4. A novel walking speed reducer according to claim 1, characterized in that, An intermediate ring (440) is installed on the inner wall of the sealing sleeve (410). The spiral sealing ring (420) is located on the left side of the intermediate ring (440), and the skeleton oil seal (50) is located on the right side of the intermediate ring (440). The bearing (30) and the intermediate ring (440) are arranged to press the spiral sealing ring (420).

5. A novel walking speed reducer according to claim 4, characterized in that, A pressure ring (450) is threaded onto the inner wall of the sealing sleeve (410), and the pressure ring (450) presses the skeleton oil seal (50) against the side wall of the intermediate ring (440).

6. A novel walking speed reducer according to claim 5, characterized in that, A connecting block (460) is fixedly installed on one side wall of the pressure ring (450).

7. A novel travel reducer according to any one of claims 1-6, characterized in that, The reducer body (10) is provided with an upper housing (110) and a lower housing (120), and a frame-type sealing ring is connected between the upper housing (110) and the lower housing (120).

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