Oil blocking structure of oil pump gear

Abstract

The utility model discloses an oil blocking structure of an oil pump gear, and relates to the technical field of automobile accessories. The engine oil pump comprises an engine oil pump gear, an oil baffle plate is installed on the inner wall of an engine oil pump shell corresponding to the rotation direction of the engine oil pump gear, a rubber plate is installed on the contact face of the oil baffle plate and the engine oil pump gear in an embedded mode, and a rubber protruding ridge adheres to the outer wall of the rubber plate. An oil filtering assembly is installed over the oil pump gear and in the oil pump shell, a positioning column in the oil filtering assembly is connected with a rotating sleeve through a reset spring connected to the positioning column in a sleeving mode, the outer wall of the rotating sleeve is further sleeved with a connecting sleeve, and a soft brush plate is further bonded to the outer wall of the connecting sleeve. Excessive lubricating oil between the outer wall of the oil pump gear and the tooth groove can be scraped off through the oil baffle plate, and meanwhile lubricating oil splashing liquid generated when the gear rotates can be blocked through the oil filtering assembly and the arc-shaped groove opening in the bottom of the oil baffle plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, in particular to an oil-blocking structure of an oil pump gear. Background Art

[0002] One of the most common parts in the automobile engine structure is the oil pump. After the oil is raised to a certain pressure through the oil pump, it is forced to the moving surfaces of various engine parts. The oil pump also needs to rely on gears for transmission when working. In order to ensure the normal operation of the gears in the oil pump, it is also necessary to apply and add lubricating oil to it. At the same time, it is also necessary to ensure that the lubricating oil is not too much to avoid the generation of lubricating oil mist.

[0003] A Chinese patent application (or patent) with the announcement number CN209163898U discloses an oil pump gear oil baffle structure, including an oil pump body, the oil pump body including an oil pump housing and an oil pump gear arranged at one end of the oil pump housing, an oil baffle plate arranged obliquely above the oil pump gear is vertically protruded on the outer end surface of the oil pump housing, an upper baffle plate extending along its axial direction is protruded upward at the top of the oil baffle plate, a flow guide structure is provided at the bottom end of the oil baffle plate, a fan-shaped baffle connecting the upper baffle plate with the flow guide structure is provided at the outer end of the oil baffle plate, connecting terminals connected to the gear chamber are evenly arranged on the peripheral side of the oil pump housing, and a support arranged above the oil pump gear is provided on the outer end surface of the oil pump housing. The oil pump gear oil baffle structure of the utility model effectively prevents the oil from flowing back to the transmission gear to cause oil splashing, avoids the problem of oil splashing caused by gear stirring the oil, and the original oil blowby in the crankcase is high.

[0004] The above-mentioned oil pump gear oil baffle structure has an oil pump gear on the side of the oil pump housing, and an oil baffle plate is also provided on the inner wall of the oil pump housing corresponding to the front end of the gear, and the outer wall of the oil baffle plate cooperates with the outer wall of the gear. However, because the inner wall of the oil baffle plate is arc-shaped and smooth, and the outer wall of the gear has tooth grooves, when the gear rotates, the tooth grooves will still be full of lubricating oil, and this part of the lubricating oil cannot be blocked by the oil baffle plate; and the oil baffle plate is arranged on the front side of the gear, and the contact surface between the oil baffle plate and the gear is smooth, so when the gear rotates, it will still carry the lubricating oil and splash to form oil mist. To this end, we provide an oil pump gear oil baffle structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an oil pump gear oil baffle structure, which can scrape off excess lubricating oil between the outer wall of the oil pump gear and the tooth groove by utilizing an oil baffle plate, and at the same time, the oil filter assembly and the arc-shaped groove at the bottom of the oil baffle plate can block the splashing lubricating oil generated when the gear rotates, thereby solving the problems of the above-mentioned oil pump gear oil baffle structure.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an oil pump gear oil baffle structure, comprising an oil pump housing, an outer wall of the oil pump housing is threadedly connected with an oil delivery pipe and an oil return pipe, and the side wall of the oil pump housing is also covered with an oil pump cover plate, and an oil pump gear is arranged in the oil pump housing corresponding to the oil pump cover plate; an oil baffle plate is installed on the inner wall of the oil pump housing corresponding to the rotation direction of the oil pump gear, a rubber plate is inlaid on the contact surface between the oil baffle plate and the oil pump gear, and a rubber ridge is bonded to the outer wall of the rubber plate, an oil filter assembly is installed in the oil pump housing just above the oil pump gear, a positioning column in the oil filter assembly is connected to a rotating sleeve through a return spring sleeved thereon, and a connecting sleeve is also sleeved on the outer wall of the rotating sleeve, and a soft brush plate is also bonded to the outer wall of the connecting sleeve.

[0008] The utility model is further configured that a limiting column is detachably fixedly installed at the center of the oil pump cover plate, the limiting column is inserted into the axis of the oil pump gear, and the oil baffle is configured in a crescent shape.

[0009] The utility model is further configured such that an inner plate groove is provided on the outer wall of the oil baffle plate on one side facing the oil pump gear, and the oil baffle plate is bonded to the rubber plate through the inner plate groove, the outer wall of the rubber plate cooperates with the side wall at the outer edge of the oil pump gear, and an arc-shaped groove is also provided at the bottom of the oil baffle plate.

[0010] The utility model is further configured that a rubber ridge is bonded to the outer wall of the rubber plate, the rubber ridge and the rubber plate are arranged as an integral structure, and the height of the rubber ridge is set to half the depth of the tooth groove of the oil pump gear.

[0011] The utility model is further configured that a plurality of rubber ridges are provided, and the rubber ridges are arranged on the outer wall of the rubber plate in an arc array structure, and the spacing between the rubber ridges is the same as the spacing between the tooth openings of the oil pump gear.

[0012] The utility model is further configured such that two ends of the positioning column in the oil filter assembly are respectively connected to the oil pump housing and the oil pump cover plate, a return spring is sleevedly mounted on the outer wall of the positioning column, and a rotating sleeve is also sleeved on the outer wall of the return spring.

[0013] The utility model is further configured such that the rotating sleeve and the connecting sleeve sleeved on its outer wall are synchronously rotated, and three soft brush plates are arranged on the outer wall of the connecting sleeve, and the three soft brush plates are respectively arranged on the front side and the upper and lower outer walls of the connecting sleeve.

[0014] The utility model is further configured such that the height of the soft brush plate is set to be half the size of the tooth groove depth of the oil pump gear.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides an oil baffle plate, which is arranged on the inner wall of the oil pump housing on the front side of the steering of the gear. A rubber plate is inlaid and installed on the contact surface between the oil baffle plate and the gear, and a rubber ridge which is integrated with the oil baffle plate is also adhered to the rubber plate, that is, the oil baffle plate contacts the outer wall of the end of the gear through the rubber plate thereon, and the rubber ridge on the rubber plate is inserted into the inner half of the tooth groove of the gear. When in use, the lubricating oil flying up with the rotation of the gear can be blocked by the arc-shaped notch at the bottom of the oil baffle plate, and the lubricating oil retained in the tooth groove will be blocked by the rubber plate and the rubber ridge thereon. At the same time, the rubber plate and the rubber ridge can automatically recover after deformation because of their soft texture and deformability.

[0017] The utility model provides an oil filter assembly, which is arranged just above the oil pump gear. A reset spring is sleeved on the outer side of a positioning column in the oil filter assembly. The positioning column is connected to a rotating sleeve through the reset spring, and a connecting sleeve and a soft brush plate are further provided on the outer side of the rotating sleeve. When in use, the soft brush plate blocks the upper chamber of the oil pump gear, and the soft brush plate contacts the tooth groove on the upper side of the oil pump gear. As the gear rotates, it will repel the soft brush plate, thereby causing the connecting sleeve to rotate to a certain extent. Then, due to the reset spring in the connecting sleeve, the soft brush plate can automatically reset and block again.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The figure is a schematic diagram of the structure of an oil pump gear oil retaining structure.

[0021] Figure 2 This is a structural disassembly diagram of an oil pump gear oil retaining structure.

[0022] Figure 3 It is a schematic diagram of the structure of the oil pump housing.

[0023] Figure 4 This is the structural disassembly diagram of the oil baffle.

[0024] Figure 5 This is a structural disassembly diagram of the oil filter assembly.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-oil pump housing, 2-oil delivery pipe, 3-oil return pipe, 4-oil pump cover, 401-limiting column, 5-oil pump gear, 6-oil baffle plate, 601-inner plate groove, 601a-arc notch, 602-rubber plate, 603-rubber ridge, 7-oil filter assembly, 701-positioning column, 702-reset spring, 703-swivel sleeve, 704-connecting sleeve, 704a-soft brush plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1, please refer to Figure 1-4 The utility model is an oil pump gear oil baffle structure, comprising an oil pump housing 1, an oil pump gear 5 is arranged in the oil pump housing 1, an oil baffle plate 6 is arranged in the oil pump housing 1 at the front end of the rotation direction of the oil pump gear 5, and the oil baffle plate 6 can effectively block the lubricating oil entering the position where the oil baffle plate 6 is located through the rubber plate 602 and the rubber ridge 603 bonded to the inner wall thereof.

[0029] Specifically, an oil delivery pipe 2 and an oil return pipe 3 are installed on the oil pump housing 1, and an oil pump cover plate 4 is also provided on the outside. An oil pump gear 5 is also provided in the oil pump housing 1 on one side of the oil pump cover plate 4. An oil baffle plate 6 is provided in the oil pump housing 1 at the front end in the rotation direction of the oil pump gear 5. A rubber plate 602 is inlaid and bonded on the inner wall of the oil baffle plate 6, and a rubber ridge 603 is bonded on the outer wall of the rubber plate 602.

[0030] Furthermore, a limiting column 401 is detachably fixedly installed in the oil pump cover 4, and the oil pump cover 4 is rotatably connected to the oil pump gear 5 through the limiting column 401. An inner plate groove 601 is opened on the outer wall of the oil baffle plate 6 facing the oil pump gear 5, and the inner plate groove 601 is used to accommodate the rubber plate 602, and an arc-shaped groove 601a is also opened on the outer wall of the bottom of the oil baffle plate 6 facing the oil pump gear 5.

[0031] The operation process of this embodiment is as follows: when in use, the lubricating oil that is pulled up as the oil pump gear 5 rotates will first contact the arc groove 601a. ​​At this time, the flying lubricating oil will be blocked by the arc groove 601a, so that it will naturally fall along the arc groove 601a to form a reflux, and then the excess lubricating oil on the outer wall of the oil pump gear 5 will contact the rubber plate 602 and be scraped by the rubber plate 602 to be further removed. Finally, the excess lubricating oil retained between the tooth grooves will be scraped off from between the tooth grooves again due to the rotational force of the oil pump gear 5 and the action of the rubber ridge 603.

[0032] Example 2, please refer to Figure 5 On the basis of Example 1, an oil filter assembly 7 is further provided. By utilizing the connecting sleeve 704 in the oil filter assembly 7 and the soft brush plate 704a on its outer wall, the lubricating oil overflowing from the upper side wall of the oil pump gear 5 can be blocked to avoid splashing.

[0033] Specifically, a reset spring 702 is sleeved on the positioning column 701 in the oil filter assembly 7, and the positioning column 701 is connected to the inner wall of the rotating sleeve 703 through the reset spring 702, and a connecting sleeve 704 is also sleeved on the outer wall of the rotating sleeve 703, and a soft brush plate 704a is also bonded to the outer wall of the connecting sleeve 704.

[0034] Furthermore, there are three soft brush plates 704a in total, and the three soft brush plates 704a are respectively arranged on the front side, the bottom and the top outer wall of the connecting sleeve 704a.

[0035] The operation process of this embodiment is as follows: when the oil pump gear 5 rotates, the lubricating oil retained in its tooth groove will move to the position of the oil filter assembly 7 as it rotates, and then because the gear contacts the soft brush plate 704a on the connecting sleeve 704, the lubricating oil that overflows to the outside as the oil pump gear 5 rotates is blocked by the soft brush plate 704a, and because the oil pump gear 5 hits the soft brush plate 704a, the connecting sleeve 704 on the soft brush plate 704a will rotate to a certain extent with the rotating sleeve 703, and after the rotation, the reset spring 702 returns to its initial state.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An oil pump gear oil retaining structure, comprising an oil pump housing (1), an oil delivery pipe (2) and an oil return pipe (3) being threadedly connected to the outer wall of the oil pump housing (1), an oil pump cover plate (4) being provided on the side wall of the oil pump housing (1), and an oil pump gear (5) being provided in the oil pump housing (1) corresponding to the oil pump cover plate (4); the characteristics are: An oil baffle plate (6) is installed on the inner wall of the oil pump housing (1) corresponding to the rotation direction of the oil pump gear (5), a rubber plate (602) is inlaid on the contact surface between the oil baffle plate (6) and the oil pump gear (5), and a rubber ridge (603) is bonded to the outer wall of the rubber plate (602), an oil filter assembly (7) is installed in the oil pump housing (1) just above the oil pump gear (5), a positioning column (701) in the oil filter assembly (7) is connected to the rotating sleeve (703) via a return spring (702) sleeved thereon, and a connecting sleeve (704) is also sleeved on the outer wall of the rotating sleeve (703), and a soft brush plate (704a) is also bonded to the outer wall of the connecting sleeve (704).

2. The oil pump gear oil retaining structure according to claim 1, characterized in that: A limiting column (401) is detachably fixedly mounted at the center of the oil pump cover plate (4), the limiting column (401) is inserted into the axis of the oil pump gear (5), and the oil baffle plate (6) is arranged in a crescent shape.

3. The oil pump gear oil retaining structure according to claim 1, characterized in that: An inner plate groove (601) is provided on the outer wall of the oil baffle plate (6) on the side facing the oil pump gear (5), and the oil baffle plate (6) is bonded to the rubber plate (602) via the inner plate groove (601), the outer wall of the rubber plate (602) cooperates with the side wall at the outer edge of the oil pump gear (5), and an arc-shaped notch (601a) is also provided on the bottom of the oil baffle plate (6).

4. The oil pump gear oil retaining structure according to claim 3, characterized in that: A rubber ridge (603) is also bonded to the outer wall of the rubber plate (602), the rubber ridge (603) and the rubber plate (602) are arranged as an integrated structure, and the height of the rubber ridge (603) is set to half the depth of the tooth groove of the oil pump gear (5).

5. The oil pump gear oil retaining structure according to claim 4, characterized in that: A plurality of rubber ridges (603) are provided, and the rubber ridges (603) are arranged on the outer wall of the rubber plate (602) in an arc-shaped array structure, and the spacing between the rubber ridges (603) is the same as the spacing between the teeth of the oil pump gear (5).

6. The oil pump gear oil retaining structure according to claim 1, characterized in that: The two ends of the positioning column (701) in the oil filter assembly (7) are respectively connected to the oil pump housing (1) and the oil pump cover plate (4); a return spring (702) is sleevedly mounted on the outer wall of the positioning column (701); and a rotating sleeve (703) is sleevedly mounted on the outer wall of the return spring (702).

7. The oil pump gear oil retaining structure according to claim 6, characterized in that: The rotating sleeve (703) and the connecting sleeve (704) sleeved on the outer wall thereof are arranged to rotate synchronously, and a total of three soft brush plates (704a) are arranged on the outer wall of the connecting sleeve (704). The three soft brush plates (704a) are respectively arranged on the front side and the upper and lower outer walls of the connecting sleeve (704).

8. The oil pump gear oil retaining structure according to claim 7, characterized in that: The height of the soft brush plate (704a) is set to half the depth of the tooth groove of the oil pump gear (5).

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