Oil pump sealing ring greasing tool

Abstract

The utility model relates to a greasing tool for a sealing ring of an oil pump. The greasing tool comprises a lower greasing seat, an upper greasing seat arranged above the lower greasing seat, and a plurality of connecting rods which are vertically arranged and are used for connecting the upper greasing seat and the lower greasing seat, greasing cavities which are coaxially arranged are vertically formed in the upper greasing seat and the lower greasing seat; annular oil ducts which are placed around the greasing cavity are arranged in the upper greasing seat and the lower greasing seat; the side wall of the greasing cavity is at least provided with a circle of oil outlet holes communicated with the annular oil duct; an oil inlet connected with the proportional valve assembly through a pipeline is formed in the annular oil duct; by arranging the upper greasing seat and the lower greasing seat corresponding to the two sealing rings with different diameters on the oil pump, the two sealing rings with different diameters on the oil pump can be greased at the same time, the working efficiency is greatly improved, the labor is saved, the outer surface of the piston is greased through the circle of oil outlet holes in the side wall of the annular oil duct, and the uniform greasing is ensured.

Description

Technical Field

[0001] This utility model relates to the field of grease coating technology, and specifically to a grease coating tool for an oil pump seal ring. Background Technology

[0002] A sealing ring is a circular or annular device used to fill or close the gap between two or more relatively moving parts. It is typically made of an elastic material (such as rubber or polymer) and has good wear resistance, chemical corrosion resistance, and sealing performance.

[0003] To avoid damaging the seals during oil pump assembly, the seal surface is generally lubricated with oil; for example... Figure 1 As mentioned above, three sealing rings 11 are provided on the oil pump 1 along the axial direction, and the diameter of the sealing ring at the end is smaller than the diameter of the two sealing rings in the middle. The existing grease coating machine cannot meet the requirements. At present, the sealing ring surface is mainly coated manually, which is not only labor-intensive and inefficient, but also has poor stability of manual operation. The coated surface is uneven, and there is a phenomenon of too much or too little oil. Too little oil cannot meet the process requirements and is prone to quality problems such as damage to parts. Too much oil will cause grease waste. Utility Model Content

[0004] The purpose of this invention is to provide a grease-applying fixture for oil pump seals to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an oil pump sealing ring grease application fixture, comprising a lower grease application seat, an upper grease application seat disposed above the lower grease application seat, and multiple vertically placed connecting rods for connecting the upper and lower grease application seats; the upper and lower grease application seats are vertically provided with coaxially placed grease application cavities to facilitate the passage of the oil pump; the upper and lower grease application seats are provided with annular oil channels surrounding the grease application cavities; the sidewall of the grease application cavity is provided with at least one oil outlet hole communicating with the annular oil channel; the annular oil channel is provided with an oil inlet connected to a metering valve assembly via a pipe.

[0006] Preferably, both the upper and lower grease pads include a grease pad body and a grease pad cover plate; the upper end of the grease pad body is provided with an annular notch with a diameter larger than the grease cavity; the middle part of the grease pad cover plate is provided with a downwardly extending annular extension; the grease pad cover plate is disposed on the upper end of the grease pad body, wherein the grease pad cover plate, the annular extension, and the annular notch together form an annular oil passage; the oil outlet is located on the annular extension.

[0007] Preferably, the grease coating body has an annular groove on the inner side of the annular oil channel; the lower end of the annular extension has an annular protrusion that can extend into the annular groove.

[0008] Preferably, the upper end of the grease coating body is provided with an annular groove on the outside of the annular oil passage; a sealing ring is provided between the annular protrusion and the annular groove and inside the annular groove.

[0009] Preferably, multiple oil inlets are provided, and they are evenly distributed in the circumferential direction at the bottom of the annular notch.

[0010] Preferably, the grease application fixture further includes a base; the lower grease application seat is disposed on the base; and the base is provided with multiple connection holes.

[0011] Preferably, the grease application fixture further includes a sealing shell; the sealing shell has openings at the top and bottom; both the upper and lower grease application seats are located inside the sealing shell; and the upper grease application seat partially protrudes from the upper end of the sealing shell.

[0012] Preferably, the grease application fixture further includes a sealing cover; the sealing cover is horizontally installed on the upper end of the upper grease application seat and covers the grease application cavity.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] 1. This utility model, by setting an upper grease pad and a lower grease pad corresponding to two sealing rings of different diameters on the oil pump, can automatically apply oil to the two sealing rings of different diameters on the oil pump at the same time, which greatly improves work efficiency and saves labor.

[0015] 2. This utility model applies oil to the outer surface of the piston through a ring of oil outlet holes on the side wall of the annular oil passage, ensuring uniform oil application. Attached Figure Description

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0017] Appendix Figure 1 This is a side view of an existing oil pump;

[0018] Appendix Figure 2 This is a schematic diagram of the oil pump sealing ring grease application fixture described in this utility model;

[0019] Appendix Figure 3 This is a cross-sectional view of the present invention;

[0020] Appendix Figure 4 This is a schematic diagram of the structure of the grease coating body in this utility model;

[0021] Appendix Figure 5 This is a schematic diagram of the grease-coating cover plate in this utility model;

[0022] Appendix Figure 6 This is a schematic diagram of the structure of this utility model after it has been placed on the base and the sealing shell has been installed;

[0023] Appendix Figure 7 In order to be in Figure 6 A schematic diagram of the structure after the sealing cap is installed;

[0024] Appendix Figure 8 This is a longitudinal sectional view of the present invention after the oil pump is installed.

[0025] The components are as follows: 1. Oil pump; 11. Sealing ring; 2. Lower grease seat; 21. Lower grease cavity; 22. Lower oil outlet; 3. Upper grease seat; 31. Upper grease cavity; 32. Upper oil outlet; 33. Grease body; 331. Annular notch; 332. Annular groove; 333. Annular recess; 34. Grease cover plate; 341. Annular extension; 342. Annular protrusion; 4. Connecting rod; 5. Annular oil passage; 6. Oil inlet; 7. Base; 8. Sealing shell; 9. Sealing cap. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Appendix Figure 2-8 The oil pump sealing ring grease application fixture of this utility model includes a lower grease application seat 2, an upper grease application seat 3 disposed above the lower grease application seat 2, and four vertically placed connecting rods 4 for connecting the upper grease application seat 3 and the lower grease application seat 2.

[0028] The upper grease-coating seat 3 is vertically provided with an upper grease-coating cavity 31 to facilitate the passage of the oil pump 1;

[0029] The lower grease base 2 is vertically provided with a lower grease cavity 21 that is placed coaxially with the upper grease cavity 31;

[0030] Both the upper grease seat 3 and the lower grease seat 2 are provided with annular oil channels 5 surrounding the upper grease cavity 31 and the lower grease cavity 21;

[0031] The sidewall of the upper grease-coated cavity 31 is provided with two upper oil outlet holes 32 that are connected to the annular oil passage 5 and correspond to the positions of the two sealing rings 11 of the same diameter as the oil pump 1.

[0032] The side wall of the lower grease-coating cavity 21 is provided with a lower oil outlet hole 22 that is connected to the annular oil passage 5 and corresponds to the position of the sealing ring 11 at the end of the oil pump 1.

[0033] Each of the annular oil passages 5 is provided with an oil inlet 6 connected to a metering valve assembly via a pipe.

[0034] During operation: The oil pump 1 to be oiled is vertically inserted into the grease-applying fixture; when the shoulder on the oil pump 1 contacts the upper end of the upper grease-applying seat 3, it acts as a limit. At this time, the end sealing ring 11 of the oil pump 1 is located in the lower grease-applying cavity 21 and corresponds exactly to the position of the lower oil outlet hole 22, while the two sealing rings 11 in the middle are located in the upper grease-applying cavity 31 and correspond exactly to the positions of the two upper oil outlet holes 32; then, the grease is quantitatively injected into the grease-applying fixture through the grease filling component, completing the automatic quantitative application of grease to the two sealing rings 11 with different diameters on the oil pump 1; when the oil pump 1 with grease applied is removed from the grease-applying fixture, the oil pump 1 can be rotated one revolution manually or automatically to make the grease evenly applied to the sealing rings 11.

[0035] In this embodiment, the diameters of the large grease-applying cavity and the lower grease-applying cavity 21 are both slightly larger than the outer diameter of the corresponding sealing ring 11 on the oil pump 1. This not only facilitates the removal and placement of the oil pump 1 to be coated with oil, but also allows for a small gap between the large grease-applying cavity and the lower grease-applying cavity 21 and the sealing ring 11. In this way, the grease flowing out of the oil outlet can be evenly coated onto the sealing ring 11.

[0036] Furthermore, such as Figure 3-5 As shown, both the upper grease seat 3 and the lower grease seat 2 include a grease body 33 and a grease cover plate 34. The upper end of the grease body 33 is provided with an annular notch 331 with a diameter larger than the grease cavity. The middle part of the grease cover plate 34 is provided with a downwardly extending annular extension 341. The grease cover plate 34 is located on the upper end of the grease body 33, wherein the grease cover plate 34, the annular extension 341, and the annular notch 331 together form an annular oil channel 5. The oil outlet is located on the annular extension 341. This utility model designs the upper grease seat 3 and the lower grease seat 2 as a split structure, which facilitates the processing of the annular oil channel 5, and the oil outlet is located on the annular extension 341, which also facilitates processing.

[0037] Furthermore, such as Figure 4-5 As shown, the grease coating body 33 has an annular groove 332 on the inner side of the annular oil passage 5; the lower end of the annular extension 341 has an annular protrusion 342 that can extend into the annular groove 332; when the grease coating body 33 and the grease coating cover plate 34 are installed, the annular protrusion 342 can be inserted into the annular groove 332, which can provide radial support for the lower end of the annular extension 341, prevent the lower end of the annular extension 341 from deforming under pressure, and improve service life.

[0038] Furthermore, such as Figure 3-4 As shown, the upper end of the grease coating body 33 is provided with an annular groove 333 on the outside of the annular oil passage 5; sealing rings are provided between the annular protrusion 342 and the annular groove 332 and inside the annular groove 333 to play a sealing role, so that the grease in the annular oil passage 5 can only flow out through the oil outlet and cannot flow out through the gap between the grease coating body 33 and the grease coating cover plate 34.

[0039] Furthermore, such as Figure 3-4 As shown, multiple oil inlets are provided, evenly arranged in the circumferential direction at the bottom of the annular oil channel 5; by providing multiple oil inlets evenly placed in the circumferential direction, this utility model makes the grease enter the annular oil channel 5 more evenly, and enables the grease to flow out evenly from the oil outlet.

[0040] Furthermore, such as Figure 6 As shown, the grease application fixture also includes a base 7; the lower grease application seat 2 is disposed on the base 7; the base 7 is provided with a connection hole for connecting to the machine tool; by setting the base 7 at the bottom of the grease application fixture, this utility model facilitates the replacement of fixtures and the application of grease to different models of oil pumps 1 or other parts to be greased.

[0041] Furthermore, such as Figure 6 As shown, the grease application fixture also includes a sealing shell 8; the sealing shell 8 has openings at the top and bottom; the upper grease application seat 3 and the lower grease application seat 2 are both located inside the sealing shell 8; the upper grease application seat 3 is partially exposed above the upper end of the sealing shell 8; this utility model uses a sealing shell 8 outside the grease application fixture to prevent particles, dust, etc. from entering the grease application fixture from the side, thus avoiding grease contamination.

[0042] Furthermore, such as Figure 7 As shown, the grease application fixture also includes a sealing cover 9; the sealing cover 9 is horizontally installed on the upper end of the upper grease application seat 3 and covers the grease application cavity; by setting the sealing cover 9 on the top of the grease application fixture, the grease application cavity can be covered by the sealing cover 9 when not in operation, preventing particles and dust from entering the grease application cavity and further avoiding grease contamination.

[0043] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. An oil pump seal ring lubricating tool characterized by: The application relates to a greasing device, which comprises a lower greasing base, an upper greasing base arranged above the lower greasing base, a plurality of vertical connecting rods arranged for connecting the upper greasing base and the lower greasing base, a greasing cavity arranged coaxially on the upper greasing base and the lower greasing base for the oil pump, an annular oil channel arranged around the greasing cavity in the upper greasing base and the lower greasing base, a plurality of oil outlets arranged on the side wall of the greasing cavity and communicated with the annular oil channel, and an oil inlet arranged on the annular oil channel and connected with a quantitative valve assembly through a pipeline.

2. The oil pump seal coating tool of claim 1, wherein: The upper greasing base and the lower greasing base each comprise a greasing body and a greasing cover plate; the upper end of the greasing body is provided with an annular gap with a larger diameter than the greasing cavity; the middle part of the greasing cover plate is provided with an annular extension part extending downward; the greasing cover plate is arranged on the upper end of the greasing body, wherein the greasing cover plate, the annular extension part and the annular gap jointly form the annular oil channel; and the oil outlets are arranged on the annular extension part.

3. The oil pump seal coating tool of claim 2, wherein: An annular clamping groove is arranged on the inner side of the annular oil channel of the greasing body; and the lower end of the annular extension part is provided with an annular protruding part which can extend into the annular clamping groove.

4. The oil pump seal coating tool of claim 3, wherein: An annular recess is arranged on the outer side of the annular oil channel of the upper end of the greasing body; and sealing rings are arranged between the annular protruding part and the annular clamping groove and in the annular recess.

5. The oil pump seal coating tool of claim 2, wherein: The oil inlet is provided with a plurality of oil inlets which are uniformly arranged on the bottom of the annular gap in the circumferential direction.

6. The oil pump seal coating tooling of any one of claims 1-5, wherein: The greasing device further comprises a base; the lower greasing base is arranged on the base; and a plurality of connecting holes are arranged on the base.

7. The oil pump seal coating tooling of any one of claims 1-5, wherein: The greasing device further comprises a sealing shell; the sealing shell is open upward and downward; the upper greasing base and the lower greasing base are arranged in the sealing shell; and the upper greasing base is partially exposed on the upper end of the sealing shell.

8. The oil pump seal coating tool of claim 7, wherein: The greasing device further comprises a sealing cover; the sealing cover is horizontally arranged on the upper end of the upper greasing base and covers the greasing cavity.

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