Outdoor oil change dustproof mechanism for engineering machinery
By installing a dustproof mechanism with filters and extension tubes on engineering machinery, the problem of dust and debris entering the gearbox is solved, protecting gears and bearings, simplifying operation, and ensuring oil cleanliness.
Patent Information
- Application Number
- CN202520671320.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-10
AI Technical Summary
When changing oil at the engineering site, dust and debris can easily enter the gearbox, affecting the life of gears and bearings. Existing technology is cumbersome and cannot completely solve the problem of dust entering.
An outdoor oil change dust prevention mechanism for engineering machinery was designed, including a mounting base, a filter screen, an extension base, and an extension tube. The filter screen is installed on the outside of the oil inlet, the extension tube is connected to the oil can or oil drum, and the end of the extension tube is provided with a protrusion for cleaning impurities. The extension base is used to store the extension tube, achieving a simple and effective dust prevention effect.
It effectively prevents large particles of debris from entering the gearbox, protects gears and bearings, simplifies the operation process, prevents wind and sand debris from entering, and ensures oil cleanliness.
Smart Images
Figure CN223725370U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering machinery maintenance field, concretely relates to an engineering machinery outdoor oil change dustproof mechanism. BACKGROUND
[0002] When oil is changed in the engineering field, due to the large wind and sand in the field, the poor cleanliness of the oil injection funnel, the difficulty of field operation and other reasons, the reducer is prone to have dust and sundries enter the reduction box when oil is injected, which makes the cleanliness inside the reduction machine worse and affects the service life of the gear and bearing. The commonly used solution is to block and protect the oil change site to meet the operation requirements, but the operation is complicated and cannot completely solve the problem of dust entering. SUMMARY
[0003] To solve the problem that dust and sundries easily enter the reduction box when oil is changed outdoors, the utility model provides an engineering machinery outdoor oil change dustproof mechanism to solve the above problems.
[0004] An engineering machinery outdoor oil change dustproof mechanism is installed at an oil injection port of an engineering machine and includes a mounting seat, a filter screen, an expansion seat and an extension pipe. The filter screen and the mounting seat are arranged along the edges of the oil injection port and extend inward and outward, respectively. The extension pipe is sleeved on the mounting seat. The expansion seat extends outward along the edges of the filter screen and the mounting seat and is higher than the mounting seat. An oil injection bolt is arranged on the expansion seat.
[0005] In a preferred embodiment of the engineering machinery outdoor oil change dustproof mechanism provided by the utility model, the edge of the filter screen is arranged on the edge of the oil injection port, and the middle area of the filter screen extends downward and into the oil injection port and abuts against the inner wall of the oil injection port.
[0006] In a preferred embodiment of the engineering machinery outdoor oil change dustproof mechanism provided by the utility model, the mounting seat is a hose flange joint, which includes a hose joint and a mounting flange. The mounting flange is arranged on the filter screen, the hose joint extends upward, and the mounting flange is fixed to the edge of the oil injection port by a bolt and simultaneously presses the filter screen.
[0007] In a preferred embodiment of the engineering machinery outdoor oil change dustproof mechanism provided by the utility model, the expansion seat is a threaded flange joint, which includes a threaded joint and an expansion flange. The filter screen and the mounting seat are located on the inner side of the threaded joint. The threaded joint is screwed into the oil injection bolt at the top, and the expansion flange is fixedly connected to the shell of the engineering machine.
[0008] In a preferable embodiment of the outdoor oil changing dustproof mechanism for engineering machinery provided by the utility model, the extension pipe is a hose, the diameters of two ends thereof are different, one end thereof is connected with the hose joint, and the other end thereof is connected with an oil can or an oil barrel or an oil pipe for oiling. The inner wall of one end of the extension pipe is a flat wall and is connected with the hose joint, and the inner wall of the other end of the extension pipe is provided with a plurality of protrusions and is connected with the oil can or the oil barrel or the oil pipe for oiling. The length of the extension pipe is greater than the distance between the mounting flange and the oiling bolt, and the part of the inner wall provided with the protrusions is located outside the expansion seat.
[0009] In a preferable embodiment of the outdoor oil changing dustproof mechanism for engineering machinery provided by the utility model, the extension pipe is folded and stored in the expansion seat.
[0010] Compared with the prior art, the outdoor oil changing dustproof mechanism for engineering machinery provided by the utility model has the following beneficial effects:
[0011] 1. In the scheme provided by the utility model, a filter screen is arranged at the oil inlet, so that relatively large particles of sundries can be blocked from entering the reduction gearbox and affecting the service life of the gear and bearing.
[0012] 2. In the scheme provided by the utility model, an extension pipe is arranged to be connected with the equipment for oiling, the extension pipe itself plays a shielding role on the oil inlet, and at the same time, the extension pipe protects the oil during the oiling process, so that wind sand and other sundries on the site cannot enter the reduction gearbox.
[0013] 3. In the scheme provided by the utility model, protrusions are arranged at the end of the extension pipe, the mouth part of the equipment for oiling is cleaned, and residual sundries cannot enter the reduction gearbox.
[0014] 4. In the scheme provided by the utility model, the extension pipe is used during operation, the extension pipe can be stored in the expansion seat, the extension pipe provides protection, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a structural diagram of the outdoor oil changing dustproof mechanism for engineering machinery in embodiment 1;
[0016] Figure 2 is a structural diagram of the outdoor oil changing dustproof mechanism for engineering machinery in use;
[0017] Figure 3 is a structural diagram of the outdoor oil changing dustproof mechanism for engineering machinery in embodiment 2.
[0018] In the drawings, the reference signs are as follows: mounting seat 1, filter screen 2, expansion seat 3, extension pipe 4, and oiling bolt 5. DETAILED DESCRIPTION
[0019] 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 a part of the embodiments of the present application, rather than all the embodiments of the present application.
[0020] Embodiment 1: Please refer to Figure 1 and Figure 2 , respectively, are structural schematic diagrams of the outdoor oil changing dustproof mechanism of the engineering machinery in use and non-use in the present embodiment.
[0021] The engineering machinery is usually provided with a concave pit on the shell, the inner wall of the concave pit is provided with threads for installing an oil injection bolt 5, and an oil injection port is located at the bottom of the concave pit and is communicated with a reduction gearbox. The outdoor oil changing dustproof mechanism of the engineering machinery comprises a mounting seat 1, a filter screen 2, an extension seat 3 and an extension pipe 4.
[0022] The filter screen 2 is of a concave structure, a surrounding ring is arranged on the edge of the oil injection port, and a middle region extends downward and penetrates into the oil injection port. A lower concave region in the middle of the filter screen 2 abuts against the inner wall of the oil injection port. A surrounding ring of the edge of the filter screen 2 is provided with a plurality of through holes for installing bolts.
[0023] The mounting seat 1 is a hose flange joint, the main body is a hose joint, and a mounting flange is arranged at the lower end of the hose joint. The inner wall of the hose joint is aligned with the inner wall of the lower concave region of the filter screen 2. The outer diameter of the mounting flange is consistent with the outer diameter of the filter screen 2. The through hole position of the edge of the filter screen 2 is consistent with the bolt hole position of the mounting flange. A surrounding thread hole is pre-drilled around the oil injection port, and the position is consistent with the through hole position of the edge of the filter screen 2 and the bolt hole position of the mounting flange.
[0024] The filter screen 2 and the mounting flange are sequentially placed at the position of the oil injection port, the mounting flange is screwed into the bolt into the mounting hole, and the mounting seat 1 and the filter screen 2 are fixed in the concave pit.
[0025] After the mounting seat 1 is arranged, the original space for installing the oil injection bolt 5 is occupied, and therefore the extension seat 3 is added for installing the oil injection bolt 5. The extension seat 3 is a threaded flange joint, the main body is a threaded joint, and an extension flange is arranged at the lower end of the threaded joint. The inner wall of the threaded joint is provided with threads matched with the oil injection bolt 5. A surrounding threaded extension hole is pre-drilled on the shell of the engineering machinery, and the position is consistent with the bolt hole position of the extension flange. The extension flange is placed on the shell of the engineering machinery, and the bolt is screwed into the extension hole to fix the extension seat 3.
[0026] The extension pipe 4 is a hose, the lower end of which is sized to fit a hose connector, and the upper end of which is sized to fit the oil filler opening of an oil can. In use, the extension pipe 4 is connected to the hose connector and the oil can filler opening, and the extension pipe 4 is used to pour oil from the gearbox into the oil filler opening. The upper end of the extension pipe 4 has a plurality of protrusions on the inner wall thereof. When the extension pipe 4 is connected to the oil can filler opening, the protrusions scrape off any dirt on the outer wall of the oil can filler opening, thereby reducing contamination.
[0027] In order to facilitate connection of the extension pipe 4 to the oil can filler opening, the upper end of the extension pipe 4 needs to extend out of the extension seat 3. The end of the extension pipe 4 having the protrusions on the inner wall thereof needs to extend out of the extension seat 3 so that the extension pipe 4 can be held by hand and pressed to connect the extension pipe 4 to the oil can filler opening.
[0028] When not in use, the extension pipe 4 is removed and the oil filler bolt 5 is installed. The lower end of the oil filler bolt 5 has a rubber pad 51 that abuts the top end of the mounting seat 1, thereby keeping the oil filler opening closed.
[0029] Embodiment 2: Please refer to Figure 3 is a structural schematic view of the dustproof mechanism for outdoor oil changing of the engineering machinery in this embodiment when not in use.
[0030] Compared with Embodiment 1, the length of the extension seat 3 is increased, so that a cavity is formed between the oil filler bolt 5 and the mounting seat 1, and the extension pipe 4 can be folded and stored in the cavity. The oil filler bolt 5 presses the extension pipe 4, and also functions to close the opening at the top of the mounting seat 1.
[0031] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. An outdoor oil change and dust prevention mechanism for engineering machinery, characterized in that: The oil filler of the construction machinery comprises a mounting base, a filter screen, an extension base and an extension pipe. The filter screen and the mounting base are arranged along the edge of the oil filler. The extension pipe is sleeved on the mounting base. The extension base is arranged along the edge of the filter screen and the mounting base. The extension base is higher than the mounting base and is provided with an oil filler bolt.
2. The outdoor oil changing dust protection mechanism of the working machine according to claim 1, characterized by: The edge of the filter screen is arranged on the edge of the oil filler. The middle area of the filter screen extends downward and is arranged in the oil filler. The middle area of the filter screen is in abutment with the inner wall of the oil filler.
3. The outdoor oil changing dust protection mechanism of the working machine according to claim 2, characterized by: The mounting base is a hose flange joint. The mounting base comprises a hose joint and a mounting flange. The mounting flange is arranged on the filter screen. The hose joint extends upward. The mounting flange is fixed on the edge of the oil filler by bolts.
4. The work machine outdoor oil changing dust protection mechanism according to claim 3, characterized by: The extension base is a threaded flange joint. The extension base comprises a threaded joint and an extension flange. The filter screen and the mounting base are arranged inside the threaded joint. The threaded joint is screwed on the oil filler bolt. The extension flange is fixedly connected with the shell of the construction machinery.
5. The outdoor oil changing dust protection mechanism of the working machine according to claim 4, characterized by: The extension pipe is a hose. The diameters of the two ends of the hose are different. One end of the hose is connected with the hose joint. The other end of the hose is connected with an oil can, an oil barrel or an oil pipe.
6. The outdoor oil changing dust protection mechanism of the working machine according to claim 5, characterized by: The inner wall of one end of the extension pipe is a flat wall. The flat wall is connected with the hose joint. The inner wall of the other end of the extension pipe is provided with a plurality of protrusions. The protrusions are connected with the oil can, the oil barrel or the oil pipe.
7. The outdoor oil changing dust protection mechanism of a working machine according to claim 5 or 6, characterized by: The length of the extension pipe is greater than the distance between the mounting flange and the oil filler bolt. The protrusions on the inner wall of the extension pipe are arranged outside the extension base.
8. The outdoor oil changing dust protection mechanism of a working machine according to claim 5 or 6, characterized by: The extension pipe is folded and stored in the extension base.