Automatic greasing machine for oil pump sealing ring

Abstract

The utility model relates to an automatic greasing machine for an oil pump sealing ring. The automatic greasing machine comprises a machine table, a greasing tool arranged at the top of the machine table, a proportional valve assembly used for quantitatively injecting grease into the greasing tool, and a grease filling assembly arranged in the machine table and used for injecting the grease into the proportional valve assembly. 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; the device can be used for automatically and quantitatively smearing grease on two sealing rings with different diameters on the oil pump, and has the advantages of uniform grease smearing, high efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of grease coating technology, and specifically to an automatic grease coating machine for oil pump seals. 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 overcome the shortcomings of the prior art by providing an automatic grease applicator for oil pump seals.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an automatic oil pump sealing ring grease applicator, comprising a machine base, a grease applicator fixture installed on the top of the machine base for applying grease to the oil pump sealing ring, a metering valve assembly for quantitatively injecting grease into the grease applicator fixture, a grease filling assembly installed inside the machine base for injecting grease into the metering valve assembly, and control buttons installed on the front of the machine base.

[0006] The grease application fixture includes a lower grease application seat, an upper grease application seat positioned 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 each have a grease application cavity vertically arranged coaxially to facilitate the passage of an oil pump. The upper and lower grease application seats each have an annular oil passage surrounding the grease application cavity. The sidewall of the grease application cavity has at least one oil outlet hole communicating with the annular oil passage. The annular oil passage has an oil inlet connected to a metering valve assembly via a pipe.

[0007] Preferably, multiple oil inlets are provided, and they are evenly distributed in the circumferential direction at the bottom of the annular oil passage.

[0008] Preferably, the grease application fixture further includes a base; the lower grease application seat is disposed on the base; the base is provided with a connection hole for connection with the machine tool.

[0009] 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.

[0010] 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.

[0011] Preferably, the metering valve assembly includes a protective cover mounted on the machine base and two metering valves mounted inside the protective cover and respectively connected to the oil inlets of the upper and lower grease seats.

[0012] Preferably, the grease filling assembly includes two vertically placed lifting cylinders with their drive ends facing upwards, a horizontally placed movable seat connected to the two lifting cylinders at both ends, an oil drum located between the two lifting cylinders, an oil pressure plate located directly above the oil drum, and an oil suction pump mounted on the movable seat and connected to the oil pressure plate via an oil suction pipe; the oil suction pump is connected to two metering valves via pipes.

[0013] Preferably, the machine tool is provided with casters with support function at each of the four corners of its bottom.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] 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.

[0016] 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.

[0017] 3. This utility model improves the quality of oiling by setting a metering valve assembly between the grease filling assembly and the grease coating tool. Attached Figure Description

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0019] Appendix Figure 1 This is a side view of an existing oil pump;

[0020] Appendix Figure 2 This is a schematic diagram of the automatic grease applicator for oil pump seals according to the present invention;

[0021] Appendix Figure 3 This is a schematic diagram of the structure of the present invention after removing the sealing cover, protective cover, and part of the machine housing;

[0022] Appendix Figure 4 This is a schematic diagram of the structure of the grease-applying tool for removing the sealing shell in this utility model;

[0023] Appendix Figure 5 for Figure 4 A cross-sectional view;

[0024] Appendix Figure 6 This is a longitudinal sectional view of the present invention after the oil pump is installed.

[0025] The components include: 1. Oil pump; 11. Sealing ring; 2. Machine base; 3. Grease application fixture; 31. Lower grease application seat; 311. Lower grease application cavity; 312. Lower oil outlet; 32. Upper grease application seat; 321. Upper grease application cavity; 322. Upper oil outlet; 33. Connecting rod; 34. Annular oil passage; 35. Oil inlet; 36. Base; 37. Sealing shell; 38. Sealing cover; 4. Metering valve assembly; 41. Protective cover; 42. Metering valve; 5. Grease filling assembly; 51. Lifting cylinder; 52. Movable seat; 53. Oil drum; 54. Pressure plate; 55. Oil suction pipe; 56. Oil suction pump; 6. Control button; 7. Casters. 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 2-6 The automatic grease applicator for oil pump seal rings of this utility model includes a machine base 2, a grease applicator 3 disposed on the top of the machine base 2 for applying grease to the oil pump seal ring 11, a metering valve assembly 4 disposed on the top of the machine base 2 and located behind the grease applicator 3 for metering grease into the grease applicator 3, a grease filling assembly 5 disposed inside the machine base 2 for injecting grease into the metering valve assembly 4, and a control button 6 disposed on the front of the machine base 2.

[0028] The grease application fixture 3 includes a lower grease application seat 31, an upper grease application seat 32 disposed above the lower grease application seat 31, and four vertically placed connecting rods 33 for connecting the upper grease application seat 32 and the lower grease application seat 31.

[0029] The upper grease-applying seat 32 is vertically provided with an upper grease-applying cavity 321 to facilitate the passage of the oil pump 1;

[0030] The lower grease-applying seat 31 is vertically provided with a lower grease-applying cavity 311 that is placed coaxially with the upper grease-applying cavity 321;

[0031] Both the upper grease seat 32 and the lower grease seat 31 are provided with annular oil channels 34 surrounding the upper grease cavity 321 and the lower grease cavity 311;

[0032] The sidewall of the upper grease-coated cavity 321 is provided with two rings of upper oil outlet holes 322 that are connected to the annular oil passage 34 and correspond to the positions of the two sealing rings 11 of the same diameter as the oil pump 1.

[0033] The side wall of the lower grease-coating cavity 311 is provided with a lower oil outlet hole 312 that is connected to the annular oil passage 34 and corresponds to the position of the sealing ring 11 at the end of the oil pump 1.

[0034] Each of the annular oil passages 34 is provided with an oil inlet 35 connected to the metering valve assembly 4 via a pipe.

[0035] During operation: vertically insert the oil pump 1 (the part to be coated) into the grease applicator 3; when the shoulder on the oil pump 1 contacts the upper end of the upper grease applicator 32, it acts as a limit, at which point the end sealing ring 11 of the oil pump 1 is located in the lower grease cavity 311 and corresponds exactly to the position of the lower oil outlet 312, while the two sealing rings 11 in the middle are located in the upper grease cavity 321 and correspond exactly to the positions of the two upper oil outlets 322; then start the control button 6, the grease filling component 5 injects grease into the metering valve component 4, and the metering valve component 4 injects grease into the grease applicator 3 in a metered manner, completing the automatic metered 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 applicator 3, the oil pump 1 can be rotated manually or automatically to make the grease evenly applied to the sealing rings 11.

[0036] In this embodiment, the diameters of the large grease-applying cavity and the lower grease-applying cavity 311 are both slightly larger than the outer diameter of the corresponding sealing ring 11 on the oil pump 1. This not only makes it easier to pick up and put down the oil pump 1 to be coated with oil, but also allows for a very small gap between the large grease-applying cavity and the lower grease-applying cavity 311 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.

[0037] Furthermore, multiple oil inlets are provided, evenly arranged in the circumferential direction at the bottom of the annular oil channel 34; by providing multiple oil inlets evenly placed in the circumferential direction, this utility model makes the grease enter the annular oil channel 34 more evenly, and enables the grease to flow out evenly from the oil outlet.

[0038] Furthermore, such as Figure 4 As shown, the grease application fixture 3 also includes a base 36; the lower grease application seat 31 is disposed on the base 36; the base 36 is provided with a connection hole for connecting to the machine base 2; by setting the base 36 at the bottom of the grease application fixture 3, 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.

[0039] Furthermore, the grease application fixture 3 also includes a sealing shell 37; the sealing shell 37 has openings at the top and bottom; the upper grease application seat 32 and the lower grease application seat 31 are both located inside the sealing shell 37; the upper grease application seat 32 is partially exposed above the upper end of the sealing shell 37; this utility model uses a sealing shell 37 outside the grease application fixture 3 to prevent particles, dust, etc. from entering the grease application fixture 3 from the side, thus avoiding grease contamination.

[0040] Furthermore, such as Figure 2 As shown, the grease application fixture 3 also includes a sealing cover 38; the sealing cover 38 is horizontally installed on the upper end of the upper grease application seat 32 and covers the grease application cavity; by setting the sealing cover 38 on the top of the grease application fixture 3, the grease application cavity can be covered by the sealing cover 38 when not in operation, preventing particles and dust from entering the grease application cavity and further avoiding grease contamination.

[0041] Furthermore, such as Figure 2-3 As shown, the metering valve assembly 4 includes a protective cover 41 mounted on the machine base 2 and two metering valves 42 mounted inside the protective cover 41 and connected to the oil inlets 35 in the upper grease seat 32 and the lower grease seat 31 respectively, to achieve metered oil dispensing and improve the quality of oiling.

[0042] Furthermore, such as Figure 3 As shown, the grease filling assembly 5 includes two vertically placed lifting cylinders 51 with their drive ends facing upwards, a horizontally placed movable seat 52 connected to the two lifting cylinders 51 at both ends, an oil tank 53 located between the two lifting cylinders 51, an oil pressure plate 54 located directly above the oil tank 53, and an oil suction pump 55 mounted on the movable seat 52 and connected to the oil pressure plate 54 via an oil suction pipe 55; the oil suction pump 55 is connected to two metering valves 42 via pipes.

[0043] During operation: Two lifting cylinders 51 drive the movable seat 52 to press down, thereby using the oil extraction pipe 55 to drive the oil pressure plate 54 to extend into the oil tank 53. At the same time, the oil suction pump 55 extracts oil and delivers the grease to the metering valve 42. The grease in the oil tank 53 can be replaced after it is used up. The grease delivery of this utility model is driven by gas, which is safe and reliable. The added oil pressure plate 54 can increase the working pressure during oil extraction, resulting in a large oil output and enabling long-distance grease delivery. It has a wide range of applications and can also easily extract and deliver high-viscosity grease. At the same time, the oil pressure plate 54 facilitates the removal of grease from the inner wall of the oil tank 53, reducing residue.

[0044] Furthermore, such as Figure 2-3 As shown, the machine base 2 is equipped with casters 7 with support functions at the four corners of its bottom. When the machine needs to be moved, the support components can be retracted and the machine can be moved by the casters; when the machine needs to work, the support components can be lowered to improve stability.

[0045] 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 automatic grease applicator for oil pump seal rings, characterized by: The machine table, the greasing tool arranged on the top of the machine table for greasing the seal ring of the oil pump, the quantitative valve assembly for quantitatively injecting the grease into the greasing tool, the grease filling assembly arranged in the machine table for injecting the grease into the quantitative valve assembly, and the control button arranged on the front of the machine table; The greasing tool comprises a lower greasing seat, an upper greasing seat arranged above the lower greasing seat, and a plurality of connecting rods arranged vertically for connecting the upper greasing seat and the lower greasing seat; the upper greasing seat and the lower greasing seat are vertically provided with a greasing cavity coaxially arranged for the oil pump to pass through; the upper greasing seat and the lower greasing seat are provided with an annular oil channel arranged around the greasing cavity; the side wall of the greasing cavity is provided with at least one oil outlet hole in communication with the annular oil channel; the annular oil channel is provided with an oil inlet connected with the quantitative valve assembly through a pipeline.

2. The oil pump seal ring automatic lubricator according to claim 1, characterized in that: The oil inlet is provided with a plurality of oil inlets uniformly arranged in the circumferential direction at the bottom of the annular oil channel.

3. The oil pump seal ring automatic lubricator according to claim 1, characterized in that: The greasing tool further comprises a base; the lower greasing seat is arranged on the base; the base is provided with a connecting hole connected with the machine table.

4. The oil pump seal ring automatic lubricator according to claim 1, characterized in that: The greasing tool further comprises a sealing shell; the sealing shell is open at the top and the bottom; the upper greasing seat and the lower greasing seat are located in the sealing shell; the upper greasing seat partially exposes the upper end of the sealing shell.

5. The oil pump seal ring automatic lubricator according to claim 1, characterized in that: The greasing tool further comprises a sealing cover; the sealing cover is horizontally mounted on the upper end of the upper greasing seat and covers the greasing cavity.

6. The automatic lubricator for oil pump seal rings according to any one of claims 1 to 5, characterized in that: The quantitative valve assembly comprises a protective cover arranged on the machine table, and two quantitative valves arranged in the protective cover and respectively connected with the oil inlets in the upper greasing seat and the lower greasing seat.

7. The oil pump seal ring automatic lubricator according to claim 6, characterized in that: The grease filling assembly comprises two lifting cylinders arranged vertically with the driving end upward, a movable seat arranged horizontally and connected with the two lifting cylinders at both ends, an oil drum located between the two lifting cylinders, an oil pressing disc located directly above the oil drum, and an oil suction pump arranged on the movable seat and connected with the oil pressing disc through an oil suction pipe; the oil suction pump is connected with the two quantitative valves through pipelines.

8. The oil pump seal ring automatic lubricator according to claim 1, characterized in that: The machine table is provided with four casters with supporting function at the four corners of the bottom.

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