Oil-splashing-preventing high-position breather pipe for gear box
By designing a high-level vent pipe with a bend structure and splash-proof mechanism, the problems of lubricating oil splashing and external contaminant ingress were solved, achieving both sealing performance and ease of maintenance for the gearbox.
Patent Information
- Application Number
- CN202520504425.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The vent pipe of the existing rotary tiller gearbox is prone to causing lubricating oil to splash out and cannot effectively prevent external dust and soil from entering.
A high-level vent pipe for gearboxes designed to prevent oil splashing is used. It adopts a bent pipe structure and is equipped with a splash-proof mechanism, including a vertical pipe, an arc-shaped pipe and a removable baffle. Combined with a sealing ring and a dustproof net, it enhances the sealing performance and protection effect.
It effectively prevents lubricating oil from splashing out, keeps external dust and dirt out of the gearbox, and facilitates maintenance and cleaning, thus improving the working reliability of the rotary tiller.
Smart Images

Figure CN223676965U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a rotary cultivator technical field, concretely is a high -altitude breather pipe for gear box of oil splash prevention. BACKGROUND
[0002] The rotary cultivator is driven to rotate by the tractor output power, and the blade cuts into the soil in the tangent direction, breaks the soil block and throws it back, covers the surface weeds or stubble, and realizes the integration of plowing, soil breaking and leveling.
[0003] The rotary cultivator is provided with a gear box, and the gear box is provided with a gear assembly and lubricating oil, the gear assembly is used for controlling the work of the cutter shaft, and the lubricating oil is used for lubricating the gear assembly. The gear box needs to be ventilated, so a breather pipe needs to be installed on the top of the gear box, but the current breather pipe mainly has the following problems: generally a straight pipe is used, because the rotary cultivator will vibrate constantly when working, so the lubricating oil in the gear box is easy to splash out of the pipe opening of the straight pipe. UTILITY MODEL CONTENTS
[0004] In view of the defects of the prior art, the utility model provides a high-position breather pipe for gear box of oil splash prevention to solve the problems mentioned in the background.
[0005] To solve the above technical problems, the utility model provides the following technical scheme:
[0006] A high-position breather pipe for gear box of oil splash prevention, comprising a vertical pipe, a first arc-shaped pipe is threadedly connected to the upper end of the vertical pipe, a horizontal pipe is threadedly connected to the first arc-shaped pipe, a second arc-shaped pipe is threadedly connected to the horizontal pipe, the pipe opening of the second arc-shaped pipe faces downward, a splash-proof mechanism is connected to the lower part in the vertical pipe through a clamping assembly, the splash-proof mechanism comprises a sleeve pipe penetrating upward and downward, a plurality of baffles connected in the sleeve pipe, the baffles are inclined from bottom to top and are staggered.
[0007] Preferably, the clamping assembly comprises a boss fixedly connected to the lower part in the vertical pipe, a plurality of recesses on the same plane are arranged on the inner wall of the vertical pipe, the recesses are located below the boss, the distance between the recesses and the boss is the same as the length of the sleeve pipe, a spring is connected in the recess, a right-angled triangular clamping block is connected to the spring, and the clamping block can be popped out from the recess outward by the elastic force of the spring.
[0008] The above technical scheme, when installing the splash-proof mechanism, the sleeve pipe is inserted into the vertical pipe, the sleeve pipe extrudes the clamping block, the clamping block extrudes the spring, and the clamping block is shrunk into the recess, when the upper end of the sleeve pipe contacts the boss, the sleeve pipe is separated from the clamping block, at this time, the clamping block rebounds under the action of the spring, and thus abuts against the bottom of the sleeve pipe, so that the sleeve pipe is kept stable through the clamping block and the boss.
[0009] Preferably, the outer wall of the lower end of the vertical pipe is provided with a first sealing ring, the inner walls of the two pipe openings of the first arc-shaped pipe are provided with a second sealing ring, and the inner walls of the two pipe openings of the second arc-shaped pipe are provided with a third sealing ring.
[0010] The above technical scheme can improve the sealing performance of the connection between the vertical pipe and the gear box through the first sealing ring, and improve the sealing performance among the vertical pipe, the horizontal pipe, the first arc-shaped pipe and the second arc-shaped pipe through the second sealing ring and the third sealing ring.
[0011] Preferably, a cover is threadedly connected to the pipe opening of the second arc-shaped pipe, and a dust screen is arranged on the cover.
[0012] The above technical scheme can prevent dust from entering the gear box when the rotary cultivator is working through the arrangement of the dust screen.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] (1) The air pipe is arranged as a bend pipe, the path of the air pipe is prolonged, the direction of the air pipe is changed, so that the lubricating oil can be prevented from splashing out, and the external dust or soil can be prevented from entering the gear box, and the splash-proof mechanism can be further prevented from splashing out through the baffle in the splash-proof mechanism.
[0015] (2) The air pipe comprises a vertical pipe, a first arc-shaped pipe, a horizontal pipe, a second arc-shaped pipe and a splash-proof mechanism, and is arranged in a modular manner, so that the air pipe is convenient to disassemble, maintain and clean. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a schematic view of the utility model installed on the gear box;
[0017] Figure 2 It is a sectional view of the utility model;
[0018] Figure 3 It is a sectional view of the utility model; Figure 2
[0019] In the figure: 1-Vertical pipe, 2-First arc-shaped pipe, 3-Horizontal pipe, 4-Second arc-shaped pipe, 5-Sleeve, 6-Baffle, 7-Projection, 8-Groove, 9-Spring, 10-Car block, 11-First sealing ring, 12-Second sealing ring, 13-Third sealing ring, 14-Cover, 15-Dust screen, 16-Gear box. DETAILED DESCRIPTION
[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0021] Embodiment 1
[0022] Please refer to Figures 1-3 The utility model provides a high -level vent pipe for preventing oil splashing of gear box, including stand pipe 1, the upper end of stand pipe 1 is threadedly connected with first arc -shaped pipe 2, first arc -shaped pipe 2 is threadedly connected with horizontal pipe 3, horizontal pipe 3 is threadedly connected with second arc -shaped pipe 4, and the pipe orifice of second arc -shaped pipe 4 faces down, and the lower part in stand pipe 1 is clamped with splash -proof mechanism through the clamping assembly, and the splash -proof mechanism includes sleeve 5 that passes through from top to bottom, a plurality of baffle 6 that are connected in sleeve, baffle 6 is inclined from bottom to top, and is staggered.
[0023] Among them, the clamping assembly includes the boss 7 that is fixedly connected to the lower part in the stand pipe, a plurality of recesses 8 that are in the same plane are arranged on the inner wall of the stand pipe, the recess 8 is located below the boss 7, and the distance between the recess 8 and the boss 7 is same with the length of the sleeve 5, the spring 9 is connected in the recess 8, the spring 9 is connected with the right triangle of the clamping block 10, and the elastic force of the spring 9 can make the clamping block 10 pop out from the recess 8.
[0024] When installing the splash -proof mechanism, sleeve 5 is inserted into stand pipe 1, in the process of inserting, sleeve 5 extrudes clamping block 10, clamping block 10 extrudes spring 11, and clamping block 10 shrinks to recess 8, when the upper end of sleeve 5 contacts with boss 7, sleeve 5 is separated from clamping block 10, at this time, clamping block 10 rebounds under the action of spring 9, thereby abutting on the bottom of sleeve 5, and sleeve 5 is kept stable through clamping block 10 and boss 7. When it is needed to take out the splash -proof mechanism, extrude clamping block 10, make clamping block shrink to recess 8, then sleeve 5 can be taken out from stand pipe 1.
[0025] In the embodiment, the outer wall of the lower end of the stand pipe 1 is provided with a first sealing ring 11, the inner walls of the two pipe orifices of the first arc-shaped pipe 2 are each provided with a second sealing ring 12, and the inner walls of the two pipe orifices of the second arc-shaped pipe 4 are each provided with a third sealing ring 13. The stand pipe 1 is installed on the gear box 16 of the rotary tiller, the first sealing ring 11 can improve the sealing performance of the connection between the stand pipe and the gear box, and the second sealing ring 12 and the third sealing ring 13 can improve the sealing performance between the stand pipe, the horizontal pipe, the first arc-shaped pipe and the second arc-shaped pipe.
[0026] In summary, by setting the vent pipe as a bent pipe, the path of the vent pipe is prolonged, the direction of the vent pipe is changed, so that the lubricating oil can be prevented from splashing out, and the external dust or soil can be prevented from entering the gear box, and by installing a detachable splash-proof mechanism in the vertical pipe, the splash-proof mechanism can further prevent the lubricating oil from splashing out through the baffle in the splash-proof mechanism. Moreover, the splash-proof mechanism can be taken out of the vertical pipe, which is convenient for maintenance and cleaning. In addition, the vent pipe comprises the vertical pipe, the first arc-shaped pipe, the horizontal pipe, the second arc-shaped pipe and the splash-proof mechanism, which are modularly arranged, so that the vent pipe is convenient to disassemble, maintain and clean.
[0027] Embodiment 2
[0028] On the basis of Embodiment 1, the second arc-shaped pipe 4 is threadedly connected with an end cover 14, and the end cover 14 is provided with a dust screen 15. By setting the dust screen, the dust outside can be prevented from entering the gear box when the rotary tiller is working. When the dust screen needs to be cleaned, the end cover can be removed.
[0029] It should be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A high-level breather pipe for an oil splash-proof gear case, characterized by: The utility model relates to a vertical tube (1), the upper end of vertical tube (1) is screwed with first arc -shaped pipe (2), first arc -shaped pipe (2) is screwed with horizontal pipe (3) on, horizontal pipe (3) is screwed with second arc -shaped pipe (4) on, and the pipe orifice of second arc -shaped pipe (4) is downward, and the lower part in vertical tube (1) is clamped with splash -proof mechanism through the engagement assembly, and the splash -proof mechanism includes sleeve (5) that passes through from top to bottom, a plurality of baffle (6) are connected in sleeve, baffle (6) are inclined from bottom to top, and are staggered.
2. A high-level breather tube for an oil-splashing-proof gear box according to claim 1, characterized in that: The utility model relates to a vertical tube (1), the upper end of vertical tube (1) is screwed with first arc -shaped pipe (2), first arc -shaped pipe (2) is screwed with horizontal pipe (3) on, horizontal pipe (3) is screwed with second arc -shaped pipe (4) on, and the pipe orifice of second arc -shaped pipe (4) is downward, and the lower part in vertical tube (1) is clamped with splash -proof mechanism through the engagement assembly, and the splash -proof mechanism includes sleeve (5) that passes through from top to bottom, a plurality of baffle (6) are connected in sleeve, baffle (6) are inclined from bottom to top, and are staggered.
3. A high-level breather tube for an oil-splashing-proof gear box according to claim 2, characterized in that: The utility model relates to a vertical tube (1), the upper end of vertical tube (1) is screwed with first arc -shaped pipe (2), first arc -shaped pipe (2) is screwed with horizontal pipe (3) on, horizontal pipe (3) is screwed with second arc -shaped pipe (4) on, and the pipe orifice of second arc -shaped pipe (4) is downward, and the lower part in vertical tube (1) is clamped with splash -proof mechanism through the engagement assembly, and the splash -proof mechanism includes sleeve (5) that passes through from top to bottom, a plurality of baffle (6) are connected in sleeve, baffle (6) are inclined from bottom to top, and are staggered.
4. A high-level breather tube for an oil-splashing-proof gear box according to claim 3, characterized in that: The utility model relates to a vertical tube (1), the upper end of vertical tube (1) is screwed with first arc -shaped pipe (2), first arc -shaped pipe (2) is screwed with horizontal pipe (3) on, horizontal pipe (3) is screwed with second arc -shaped pipe (4) on, and the pipe orifice of second arc -shaped pipe (4) is downward, and the lower part in vertical tube (1) is clamped with splash -proof mechanism through the engagement assembly, and the splash -proof mechanism includes sleeve (5) that passes through from top to bottom, a plurality of baffle (6) are connected in sleeve, baffle (6) are inclined from bottom to top, and are staggered. The utility model relates to a vertical tube (1), the upper end of vertical tube (1) is screwed with first arc -shaped pipe (2), first arc -shaped pipe (2) is screwed with horizontal pipe (3) on, horizontal pipe (3) is screwed with second arc -shaped pipe (4) on, and the pipe orifice of second arc -shaped pipe (4) is downward, and the lower part in vertical tube (1) is clamped with splash -proof mechanism through the engagement assembly, and the splash -proof mechanism includes sleeve (5) that passes through from top to bottom, a plurality of baffle (6) are connected in sleeve, baffle (6) are inclined from bottom to top, and are staggered.