Novel oil pan for tractor and engine

Abstract

The utility model provides a novel oil pan for a tractor and an engine, and belongs to the technical field of tractors, the novel oil pan comprises an oil pan body, the bottom of the inner cavity of the oil pan body is provided with an arc-shaped oil groove, the bottom of the arc-shaped oil groove is provided with a chipping counter bore, and an oil discharge pipe is obliquely arranged in the chipping counter bore; and the oil drain plug screw is screwed into the oil drain pipe. When the engine oil is replaced, the metal and non-metal scraps in the arc-shaped oil groove can gradually enter and precipitate into the scrap counter bore, when the engine oil is replaced, the engine oil can be discharged from the oil discharging pipe to the maximum extent, the metal and non-metal scraps in the scrap counter bore can be discharged from the oil discharging pipe, oil liquid residues are reduced, and the service life of the engine oil is prolonged. And metal and nonmetal mixed chippings are prevented from being retained at the bottom of the oil pan body, and moving parts are prevented from being abraded by the residual chippings.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tractor technical field, especially relate to a novel oil pan for tractor and engine. BACKGROUND

[0002] In the field of agricultural machinery and engineering vehicles, as the core power equipment, tractors have been working in complex terrain (such as rugged farmland, muddy road or mountainous environment) for a long time, and its engine system faces significant dynamic load challenges. Due to the harsh working environment, the tractor frequently bears bumps, vibrations and instantaneous impacts during driving or working, and such working conditions cause the internal mechanical parts (such as crankshaft, piston ring, bearing, etc.) to bear alternating stress, accelerate the fatigue wear of the friction pair surface, and aggravate the generation of metal and non-metal debris.

[0003] The design of the traditional engine lubrication system is usually based on static or steady state working conditions. The oil pan, as the core component for oil storage and debris settlement, its oil drain structure (such as a single low oil drain) can meet the basic maintenance requirements in a stable environment. However, in the actual operation of the tractor, the debris in the oil pan is in a suspended state due to continuous vibration, which is difficult to settle effectively. In addition, the oil drain position is located on the side wall of the oil pan, such as the oil drain of the cast oil pan for tractor in patent No. CN202120235565.3, which is located on the side wall of the oil pan. The replacement of engine oil is limited by the gravity oil discharge efficiency, and the high viscosity engine oil mixed with debris is prone to be retained at the bottom of the oil pan, making it difficult to effectively discharge the mixed debris from the oil pan. The residual debris enters the lubrication circuit with new engine oil, which will accelerate the wear of moving parts, reduce the lubrication performance of engine oil, and thus shorten the oil change cycle and threaten the service life of the engine. SUMMARY

[0004] Therefore, the utility model provides a novel oil pan for tractor to solve the technical problem that high viscosity engine oil mixed with debris is prone to be retained at the bottom of the oil pan, making it difficult to effectively discharge the mixed debris from the oil pan, and the residual debris enters the lubrication circuit with new engine oil, which will accelerate the wear of moving parts.

[0005] The technical solution of the utility model to solve the above technical problem is as follows:

[0006] A novel oil pan for tractor, comprising an oil pan body, an arc-shaped oil groove is formed in the bottom of the inner cavity of the oil pan body, a debris settling hole is formed in the bottom of the arc-shaped oil groove, and an oil drain pipe is inclinedly arranged in the debris settling hole;

[0007] and an oil drain screw plug is screwed into the oil drain pipe.

[0008] Preferably, the surface of the arc-shaped oil groove is provided with a composite wear-resistant layer.

[0009] Preferably, the edge of the debris sink hole is provided with a chamfer.

[0010] Preferably, the angle between the center axis of the oil drain pipe and the bottom of the oil pan body is 40-75 degrees.

[0011] Preferably, the inner wall of the oil drain pipe is uniformly provided with a plurality of spiral oil channels.

[0012] Preferably, the oil drain plug comprises a plug body and a magnetic ring, the plug body is screwed into the oil drain pipe, the magnetic ring is sleeved on the plug body, and the magnetic ring is located on the side close to the debris sink hole.

[0013] Preferably, a rubber ring is further sleeved on the magnetic ring, and the rubber ring is attached to the inner wall of the oil drain pipe.

[0014] Preferably, an X-shaped flow guide groove is formed in the bottom of the inner cavity of the oil pan body, and one end of the X-shaped flow guide groove extends into the arc-shaped oil groove.

[0015] Preferably, a plurality of straight ribs are arranged on the first and second side walls of the inner cavity of the oil pan body, a plurality of reinforcing rib plates are arranged on the third and fourth side walls of the inner cavity of the oil pan body, the bottom of the reinforcing rib plate is in contact with the bottom of the inner cavity of the oil pan body, and the straight ribs and the reinforcing rib plates are integrally formed with the oil pan body.

[0016] An engine is provided with a new type of oil pan for tractors.

[0017] Compared with the prior art, the new type of oil pan for tractors has at least the following advantages:

[0018] The metal and non-metallic debris in the arc-shaped oil groove gradually enters and deposits into the debris sink hole, when the oil is replaced, the oil can be discharged from the oil drain pipe to the maximum extent, the metal and non-metallic debris in the debris sink hole is discharged from the oil drain pipe, the residual oil is reduced, the mixed debris of metal and non-metal is avoided to be retained in the bottom of the oil pan body, and the residual debris is prevented from wearing the moving parts. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The new type of oil pan for tractors is an axial view.

[0020] Figure 2 The new type of oil pan for tractors is a top view.

[0021] Figure 3 The new type of oil pan for tractors is a perspective view. Figure 2 -A partial enlarged view.

[0022] Figure 4It is a new type oil pan half sectional view for tractor.

[0023] Figure 5 It is Figure 4 -B local enlarged view.

[0024] In the figure: oil pan body 100, arc oil groove 110, composite wear-resistant layer 111, debris sink hole 120, chamfer 121, oil drain pipe 130, spiral oil channel 131, X-shaped flow guide groove 140, oil drain screw plug 200, screw plug body 210, magnetic attraction ring 220, rubber ring 230, straight grain reinforcing rib 300, reinforcing rib plate 400. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions of the present application will be further described below with reference to the drawings of the embodiments of the present application. The present application is not limited to the following specific embodiments.

[0026] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top" and "bottom" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0027] Please refer to Figures 1 to 5The utility model provides a new type oil pan for tractor, including oil pan body 100, the bottom of the oil pan body 100 inner chamber is provided with the arc oil groove 110, when engine operation is finished, oil is at rest, metal and nonmetallic debris carry out sedimentation, and preliminary sedimentation to the arc oil groove 110, the bottom of the arc oil groove 110 is provided with the debris sink hole 120, after carrying out multiple sedimentation, the metal and nonmetallic mixed debris in the arc oil groove 110 will gradually enter and sediment to the debris sink hole 120, because the debris sink hole 120 is compared with the arc oil groove 110, depth is deep, the metal and nonmetallic mixed debris in the debris sink hole 120 is not easy to flow again to the arc oil groove 110, the debris sink hole 120 is provided with the oil drain pipe 130 and the oil drain plug 200 in the inclination, and the oil drain plug 200 is screwed to the oil drain pipe 130, when replacing the oil in the oil pan body 100, the oil drain plug 200 is detached from the oil drain pipe 130, because the oil drain pipe 130 is provided with the inclination, and the oil drain pipe 130 is located the lowest point of the oil pan body 100, and oil can be discharged from the oil drain pipe 130 to the maximum extent, the metal and nonmetallic debris in the debris sink hole 120 will be discharged from the oil drain pipe 130, reduce the oil residue, avoid the mixed debris of metal and nonmetal to stay in the bottom of the oil pan body 100, prevent the residual debris from wearing the moving parts. Meanwhile, the oil drain pipe 130 is provided with the inclination, and the inclination angle makes the wrench operation space more abundant, and the disassembly or installation is more convenient.

[0028] In a preferred embodiment, because oil and mixed debris are in the inner cavity of the oil pan body 100 for a long time, and the mixed debris is in contact with the arc oil groove 110 for a long time after sedimentation, it is easy to cause the arc oil groove 110 to wear and produce secondary metal debris. Therefore, the surface of the arc oil groove 110 is provided with a composite wear-resistant layer 111 containing tungsten carbide particles with a thickness of 0.5 mm to enhance the wear resistance of the arc oil groove 110.

[0029] In a preferred embodiment, the edge of the debris sink hole 120 is provided with a chamfer 121 to make the edge of the debris sink hole 120 inclined to facilitate the metal and nonmetallic mixed debris in the arc oil groove 110 to enter the debris sink hole 120.

[0030] In an embodiment, the angle between the central axis of the oil drain pipe 130 and the bottom of the oil pan body 100 is 40°-75°. The oil drain pipe 130 is arranged at an angle of 40°-75°, which facilitates the discharge of oil from the oil drain pipe 130 along a profiled line, and at the same time, the inclined arrangement of the oil drain pipe 130 makes the wrench operation space more abundant, and the disassembly or installation is more convenient.

[0031] In a preferred embodiment, referring to Figure 2 and Figure 5 In order to accelerate the flow of oil from the drain pipe 130, the inner wall of the drain pipe 130 is uniformly provided with a plurality of spiral oil channels 131. When the drain plug 200 is removed from the drain pipe 130, the oil flows into the spiral oil channels 131 when it flows out of the drain pipe 130, guiding the oil to flow in a spiral form, accelerating the flow rate of the oil and shortening the draining time.

[0032] In a possible embodiment, referring to Figure 5 The drain plug 200 includes a plug body 210 and a magnetic ring 220. The plug body 210 has external threads, and the drain pipe 130 has internal threads. The plug body 210 is screwed into the drain pipe 130 by the external threads and the internal threads. The magnetic ring 220 is sleeved on the plug body 210 and located near the debris sink hole 120. Since most of the mixed debris are metal debris, they can be collected by magnetic attraction. When the plug body 210 is screwed into the drain pipe 130, the magnetic ring 220 extends into the debris sink hole 120. When the metal debris in the debris sink hole 120 sinks into the drain pipe 130, it is attracted by the magnetic ring 220, achieving the effect of collecting metal debris. When the plug body 210 is removed from the drain pipe 130, the metal debris on the magnetic ring 220 can be cleaned.

[0033] In a preferred embodiment, referring to Figure 5 The magnetic ring 220 is also sleeved with a rubber ring 230, which is attached to the inner wall of the drain pipe 130. When the magnetic ring 220 extends into the drain pipe 130, the rubber ring 230 is attached to the inner wall of the drain pipe 130, which has the effect of blocking oil.

[0034] In a possible embodiment, the oil pan body 100 has an X-shaped flow guide groove 140 at the bottom of the inner cavity, which extends to the arc-shaped oil groove 110. The X-shaped flow guide groove 140 is located at the four corners of the bottom of the inner cavity of the oil pan body 100, which is beneficial to guide the oil in the inner cavity of the oil pan body 100 to flow from the periphery to the center of the arc-shaped oil groove 110, achieving the effect of guiding and mixing debris.

[0035] In a possible embodiment, the inner cavity of the oil pan body 100 comprises a first side wall (front side wall), a second side wall (rear side wall), a third side wall (left side wall), a fourth side wall (rear side wall) and a bottom, and the top surface is connected with the engine body through positioning pins and bolts. A plurality of straight ribs 300 are arranged on the first side wall and the second side wall of the inner cavity of the oil pan body 100, and a plurality of reinforcing rib plates 400 are arranged on the third side wall and the fourth side wall of the inner cavity of the oil pan body 100, and the bottom of the reinforcing rib plate 400 is in contact with the bottom of the inner cavity of the oil pan body 100, and the straight ribs 300 and the reinforcing rib plates 400 are integrally formed with the oil pan body 100. The straight ribs 300 and the reinforcing rib plates 400 are added in the oil pan, which can effectively increase the structural strength of the oil pan, and because the straight ribs 300 and the reinforcing rib plates 400 are integrally formed with the oil pan body 100, the structure of the oil pan is compact and has higher structural strength, which is suitable for high load working conditions. At the same time, the linear structure of the straight ribs 300 reduces the complexity of the mold, simplifies the casting process, linearly arranges and uniformly disperses the load, avoids the local stress concentration caused by the curvature mutation of the wave ribs, greatly reduces the defects such as sand holes and pores that may occur in the casting process, and reduces the casting scrap rate of the oil pan.

[0036] An engine is provided with a novel oil pan for tractors. By installing the oil pan on the engine, the arc-shaped oil groove 110 and the debris sink hole 120 achieve the effect of depositing mixed metal and non-metal debris. When the oil is replaced, the metal and non-metal debris in the debris sink hole 120 is discharged from the oil drain pipe 130, reducing the residual oil and avoiding the mixed metal and non-metal debris from being retained at the bottom of the oil pan body 100, thereby preventing the residual debris from wearing the moving parts.

[0037] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A novel oil pan for tractors, characterized in that, Including oil sump body, the oil sump body inner chamber bottom is provided with arc oil groove, the arc oil groove bottom is provided with debris sink hole, and the debris sink hole is provided with oil drain pipe in the inclined manner; And oil drain screw plug, the oil drain screw plug is screwed into the oil drain pipe, the arc oil groove surface is provided with composite wear-resistant layer, the debris sink hole edge is provided with chamfer, the oil drain pipe central axis and the oil sump body bottom angle is 40 °-75 °, and the oil drain pipe inner wall is uniformly provided with a plurality of spiral oil channels.

2. The novel oil pan for tractors as claimed in claim 1, wherein, The oil drain screw plug includes screw plug body and magnetic ring, the screw plug body is screwed into the oil drain pipe, the magnetic ring is sleeved on the screw plug body, and the magnetic ring is located on the side close to the debris sink hole.

3. The novel oil pan for tractors as claimed in claim 2, wherein, The magnetic ring is also provided with rubber ring, and the rubber ring is attached to the oil drain pipe inner wall.

4. The novel oil pan for tractors as claimed in claim 1 wherein, The oil sump body inner chamber bottom is provided with X-shaped flow guide groove, and the X-shaped flow guide groove extends to the arc oil groove.

5. The novel oil pan for tractors as claimed in claim 1 wherein, The first side wall and the second side wall of the oil sump body inner chamber are provided with a plurality of straight grain reinforcing ribs arranged uniformly, the third side wall and the fourth side wall of the oil sump body inner chamber are provided with a plurality of reinforcing rib plates, the bottom of the reinforcing rib plate is in contact with the bottom of the oil sump body inner chamber, and the straight grain reinforcing rib and the reinforcing rib plate are integrally formed with the oil sump body.

6. An engine characterized by, The engine is provided with the novel oil sump of any one of claims 1-5. The engine is provided with the novel oil sump of any one of claims 1-5.

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