Front oil drainage structure for bulldozer

By designing a front-mounted oil drain structure for bulldozers in the existing technology, including an oil drain pipe and a front-mounted oil drain structure, the problem of convenient operation of engine oil drain is solved. This also solves the problem of inconvenient maintenance caused by the engine oil drain port being located at the bottom in the existing technology, and improves safety and economy.

CN223578014UActive Publication Date: 2025-11-21LIUGONG CHANGZHOU MACHINERY
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Patent Information

Application Number
CN202520374761.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-11-21
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

The existing bulldozer engine drain port is located at the bottom, which makes maintenance inconvenient. There is a need to design a front-mounted drain structure that can improve convenience and safety.

Method used

Design a front-mounted drain structure including a drain pipe and a front underbody guard plate. One end of the drain pipe is fixedly connected to the oil cylinder at the bottom of the engine, and the other end is connected to the drain port on the front underbody guard plate. It is equipped with a valve switch and a removable baffle. The structural strength is enhanced by horizontal and vertical reinforcing ribs.

Benefits of technology

It enables convenient operation of engine oil, avoids the need to crawl under the vehicle for repairs, improves safety and economy, and is suitable for different working conditions and chassis layouts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of engineering machinery, and relates to a front oil drainage structure for a bulldozer, which comprises an oil drainage pipe and a front bottom guard plate, the front bottom guard plate is fixed at the front end of a main frame, one end of the oil drainage pipe is fixedly connected with a bottom oil cylinder of an engine on the main frame, and the other end of the oil drainage pipe is connected with an oil drainage port on the front bottom guard plate. A valve switch is arranged at the end, connected with the oil drainage port, of the oil drainage pipe, a detachable baffle is arranged at the bottom of the oil drainage port, the front bottom protection plate comprises a bottom protection plate, the oil drainage port is formed in the bottom protection plate, and a transverse reinforcing plate and a vertical reinforcing rib are further welded to the bottom protection plate. The device has the advantages of being simple in structure, stable, reliable, capable of effectively saving manpower, improving safety, economical efficiency and convenience and the like.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering machinery technical field, concretely relates to a front oil drain structure for bulldozer. BACKGROUND

[0002] In prior art, when the bulldozer is maintained, the conventional engine oil drain is located at the bottom of the bulldozer, so the bulldozer needs to be driven to the maintenance pit or the maintenance personnel needs to drill into the bottom of the vehicle to carry out the engine oil drain work, and there are problems such as poor maintenance convenience, so a front oil drain structure for bulldozer needs to be designed. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of front oil drain structures for bulldozer, which can effectively save manpower and improve safety, economy and convenience.

[0004] To achieve the above object, the utility model adopts the technical scheme of: a front oil drain structure for bulldozer, comprising an oil drain pipe and a front bottom guard plate, the front bottom guard plate is fixed to the front end of the mainframe, one end of the oil drain pipe is fixedly connected with the bottom cylinder of the engine on the mainframe, the other end is connected with the oil drain port on the front bottom guard plate, and the end of the oil drain pipe connected with the oil drain port is provided with a valve switch, and the bottom of the oil drain port is provided with a detachable baffle.

[0005] Preferably, the front bottom guard plate includes a bottom guard plate, the oil drain port is opened on the bottom guard plate, and a horizontal reinforcing plate and a vertical reinforcing rib are also welded on the bottom guard plate.

[0006] Preferably, the horizontal reinforcing plate is vertically welded on one side of the bottom guard plate close to the mainframe, the vertical reinforcing rib is provided with at least two and symmetrically distributed on the left and right sides of the oil drain port, and the adjacent two sides of the vertical reinforcing rib are respectively welded and fixed with the bottom guard plate and the horizontal reinforcing plate.

[0007] Preferably, the bottom guard plate is designed to be inclined, and the included angle between the bottom guard plate and the horizontal reinforcing plate is less than 90°.

[0008] Preferably, the oil drain pipe is connected with the oil drain port through a fixed plate, and the fixed plate is fixedly connected with the horizontal reinforcing plate through a first bolt.

[0009] Preferably, the baffle is detachably connected with the nut of the outer periphery of the oil drain port through a second bolt.

[0010] Preferably, the material of the oil drain pipe is selected from rubber hose or steel pipe.

[0011] After adopting the above technical scheme, the front oil drain structure for bulldozer provided by the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a bottom guard plate upper transverse reinforcing plate and vertical reinforcing rib design, can guarantee the structural strength of front bottom guard plate;

[0013] (2) The utility model discloses a oil drain pipe one end and the host frame upper engine's bottom oil cylinder fixed connection, the other end and the oil drain port on the front bottom guard plate connection's design, can guide the engine oil to the bulldozer front part, more convenient for engine oiling operation, effectively avoided when carrying out engine oiling operation, must drive the bulldozer to the specific maintenance point or the operator drills into the bulldozer car bottom problem, improve the economy and convenience;

[0014] (3) The utility model discloses a oil drain pipe and oil drain port fixed connection one end is equipped with the valve switch's design, can through the opening or closing valve switch mode realizes engine oiling or not;

[0015] (4) The utility model discloses a oil drain port bottom detachable baffle's design, can realize oiling through the dismantling baffle when needing oiling, can effectively prevent the sand and stone through the oil drain port and enter the bulldozer when not needing oiling, destroys the oil drain port and other parts;

[0016] (5) The utility model discloses an oil drain pipe material quality can according to the bulldozer different operation condition and different chassis space layout condition carries out specific selection, and the application range is wide. DRAWINGS

[0017] Figure 1 It is the application structure schematic drawing of the utility model for bulldozer front oiling structure;

[0018] Figure 2 It is the front view of the utility model in front bottom guard plate;

[0019] Figure 3 It is Figure 2 The F-F side sectional view schematic drawing in the utility model;

[0020] Figure 4 It is the structure explosion schematic drawing of the utility model in front bottom guard plate.

[0021] Among them: host frame 1, engine 2, oil drain pipe 3, front bottom guard plate 4, bottom guard plate 401, transverse reinforcing plate 402, vertical reinforcing rib 403, fixed plate 404, first bolt 405, nut 406, oil drain port 407, baffle 408, second bolt 409. DETAILED DESCRIPTION

[0022] The utility model will be further clearly and completely described below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is merely illustrative, but not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0024] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not meant to limit the scope of the present utility model. At the same time, it should be understood that the size of each part shown in the drawings is not drawn in accordance with the actual proportion relationship for the convenience of description. The technology, method and equipment known to those skilled in the art may not be discussed in detail, but under appropriate circumstances, the technology, method and equipment should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] In the description of the utility model, it should be understood that the orientation or position relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like is usually based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the utility model; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0026] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "top", "bottom", "side", "upper", "lower", and the like, can be used to describe an orientation of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device is inverted in use or operation, then the description "above" or "below" can include both the orientations depicted in the figures and also the opposite orientation. Thus, the exemplary term "above" can include both the above and below orientations depending on the particular orientation of the device in use or operation. The device can also be oriented in other ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0027] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not have a special meaning, and are only used to distinguish corresponding parts, and therefore cannot be understood as limiting the protection scope of the utility model.

[0028] The utility model discloses a front oil discharge structure for bulldozer, Figures 1-4 As shown in the figure, including oil drain pipe 3 and front bottom guard plate 4, front bottom guard plate 4 is fixed in the front end of main frame 1, oil drain pipe 3 one end is fixedly connected with the bottom oil cylinder of engine 2 on main frame 1, and the other end is connected with oil drain port 407 on front bottom guard plate 4, specifically, front bottom guard plate 4 includes bottom guard plate 401, oil drain port 407 is set up on bottom guard plate 401, to guarantee the structural strength of front bottom guard plate 4, bottom guard plate 401 still welds with horizontal reinforcing plate 402 and vertical reinforcing rib 403, horizontal reinforcing plate 402 is vertically welded on the side of bottom guard plate 401 close to main frame 1, vertical reinforcing rib 403 is at least provided with two, and is symmetrically distributed on the left and right sides of oil drain port 407, and the adjacent two sides of vertical reinforcing rib 403 are respectively welded and fixed with bottom guard plate 401 and horizontal reinforcing plate 402, bottom guard plate 401 is obliquely designed, and the included angle between bottom guard plate 401 and horizontal reinforcing plate 402 is less than 90 DEG.

[0029] The oil drain pipe 3 is connected with the oil drain port 407 through a fixing plate 404, the fixing plate 404 is fixedly connected with the transverse reinforcing plate 402 through a first bolt 405, and one end of the oil drain pipe 3 connected with the oil drain port 407 is provided with a valve switch, and the engine oil draining can be realized by opening or closing the valve switch, the bottom of the oil drain port 407 is provided with a detachable baffle 408, specifically, the baffle 408 is detachably connected with the nut 406 of the outer periphery of the oil drain port 407 through a second bolt 409, in this way, the oil draining can be realized by detaching the baffle 408 when the oil draining is needed, and the sand and stones can be effectively prevented from entering the bulldozer through the oil drain port 407 to damage the oil drain port 407 and other parts when the oil draining is not needed.

[0030] The material of the oil drain pipe 3 can be selected according to actual needs, and a rubber hose or a steel pipe can be selected, and the purpose is to adapt to different working conditions and different chassis space layouts of the bulldozer.

[0031] The front oil draining structure for the bulldozer is used, when the engine oil of the bulldozer needs to be replaced, the baffle 408 is detached to expose the oil drain port 407 by detaching the second bolt 409, and the end valve switch of the oil drain pipe 3 is opened through the oil drain port 407, so that the engine oil draining can be realized.

[0032] In summary, the front oil draining structure for the bulldozer has the advantages of simple structure, stability and reliability, can effectively save manpower and improve safety, economy and convenience, has great market value, and is worth being widely applied.

[0033] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A front-mounted oil drain structure for a bulldozer, characterized in that: It includes an oil drain pipe (3) and a front bottom guard plate (4). The front bottom guard plate (4) is fixed to the front end of the main frame (1). One end of the oil drain pipe (3) is fixedly connected to the bottom cylinder of the engine (2) on the main frame (1), and the other end is connected to the oil drain port (407) on the front bottom guard plate (4). A valve switch is provided at one end of the oil drain pipe (3) connected to the oil drain port (407). A detachable baffle (408) is provided at the bottom of the oil drain port (407).

2. The front-mounted oil draining structure for a bulldozer according to claim 1, characterized in that: The front bottom guard plate (4) includes a bottom guard plate (401), the oil drain port (407) is opened on the bottom guard plate (401), and a horizontal reinforcing plate (402) and a vertical reinforcing rib (403) are also welded on the bottom guard plate (401).

3. The front-mounted oil draining structure for a bulldozer according to claim 2, characterized in that: The horizontal reinforcing plate (402) is vertically welded to the bottom guard plate (401) on the side near the main frame (1). At least two vertical reinforcing ribs (403) are provided, symmetrically distributed on the left and right sides of the oil drain port (407), and the adjacent sides of the vertical reinforcing ribs (403) are welded and fixed to the bottom guard plate (401) and the horizontal reinforcing plate (402) respectively.

4. The front-mounted oil draining structure for a bulldozer according to claim 2, characterized in that: The bottom guard plate (401) is designed to be inclined, and the included angle between the bottom guard plate (401) and the transverse reinforcing plate (402) is less than 90°.

5. The front-mounted oil draining structure for a bulldozer according to claim 2, characterized in that: The drain pipe (3) is connected to the drain port (407) via a fixing plate (404), and the fixing plate (404) is fixedly connected to the transverse reinforcing plate (402) via a first bolt (405).

6. The front-mounted oil draining structure for a bulldozer according to claim 1, characterized in that: The baffle (408) is detachably connected to the nut (406) on the outer periphery of the drain port (407) by a second bolt (409).

7. The front-mounted oil draining structure for a bulldozer according to claim 1, characterized in that: The material of the drain pipe (3) is a rubber hose or a steel pipe.