A cleaning device for an inner feedback closed hydrostatic bearing

Abstract

This utility model discloses a cleaning device for an internal feedback closed hydrostatic bearing, including a cleaning tank. Inside the cleaning tank is a support ring for supporting the hydrostatic bearing. The inner ring surface of the support ring has an annular oil groove, and the support ring also has an oil supply hole communicating with the annular oil groove. The annular oil groove is connected to an oil supply pipeline through the oil supply hole. When the hydrostatic bearing is placed on the support ring, the annular oil groove is opposite to the oil inlet hole on the outer ring surface of the hydrostatic bearing. The cleaning oil in the annular oil groove can enter the oil passage holes and oil chamber of the hydrostatic bearing through the oil inlet hole. After passing through the various oil passage holes and oil chambers within the hydrostatic bearing, the cleaning oil is sprayed out, achieving the effect of cleaning the hydrostatic bearing, and the cleaning efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of bearing cleaning technology, and in particular to a cleaning device for an internal feedback closed hydrostatic bearing. Background Technology

[0002] In an internal feedback closed hydrostatic bearing, a series of axial and radial holes are formed, connecting the various oil chambers within the bearing. Due to the large number of oil passages within the hydrostatic bearing, deburring and cleaning are extremely difficult. Not only is it easy to miss deburring individual holes, but chips also easily remain at the intersections and corners of the holes, resulting in incomplete cleaning. Furthermore, the efficiency is very low. Therefore, it is necessary to develop a device for cleaning the oil passages of an internal feedback closed hydrostatic bearing. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a cleaning device for an internal feedback closed hydrostatic bearing. There is an annular oil groove on the inner ring surface of the support ring. Oil is supplied to the oil inlet on the outer ring surface of the hydrostatic bearing through the annular oil groove. The cleaning oil is sprayed out after passing through the various oil passages and oil chambers in the hydrostatic bearing, thereby achieving the effect of cleaning the hydrostatic bearing. Moreover, the cleaning operation is highly efficient.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a cleaning device for an internal feedback closed hydrostatic bearing, comprising a cleaning tank, a support ring for supporting the hydrostatic bearing, an annular oil groove on the inner ring surface of the support ring, and an oil supply hole connected to the annular oil groove on the support ring. The annular oil groove is connected to an oil supply pipeline through the oil supply hole. When the hydrostatic bearing is placed on the support ring, the annular oil groove is opposite to the oil inlet hole on the outer ring surface of the hydrostatic bearing, and the cleaning oil in the annular oil groove can enter the oil passage hole and oil cavity of the hydrostatic bearing through the oil inlet hole.

[0005] Furthermore, the cleaning tank contains several support columns arranged in a circular array. The top of each support column has a stepped notch on the side facing the center of the circular array. The support ring limiting frame is placed on the stepped notch, and the support column is also equipped with a clamping mechanism for pressing the support ring.

[0006] Furthermore, the lower ends of several of the support columns are fixedly installed on the base plate; the base plate, support ring and several support columns are combined to form a replaceable cleaning assembly, and the oil supply hole is detachably connected to the oil supply pipeline.

[0007] Furthermore, the clamping mechanism is a quick clamp, and the upper end face of the support ring is provided with a blind hole; the pressure head of the quick clamp is opposite to the blind hole, and when the pressure head is inserted into the blind hole, it presses the support ring against the stepped notch.

[0008] Furthermore, the base plate is provided with several eye bolts.

[0009] Furthermore, a flange is integrally connected to the hydrostatic bearing. When the hydrostatic bearing is placed on the support ring, the flange presses against the upper end face of the support ring. Several threaded holes are distributed on the upper end face of the support ring, and several through holes are opened on the flange. Screws are screwed into the threaded holes after passing through the through holes to fix the hydrostatic bearing on the support ring.

[0010] Furthermore, the cleaning tank is provided with an oil inlet, and the oil supply pipeline includes an external oil supply hose, which is connected to the oil supply port after being connected to the oil inlet; the bottom of the cleaning tank is provided with an oil drain port.

[0011] Furthermore, the upper opening of the cleaning tank is provided with an openable and closable transparent cover.

[0012] Furthermore, an oil receiving tray is provided on the bottom periphery of the cleaning tank.

[0013] Furthermore, the outer wall of the cleaning tank is provided with lifting lugs, and the bottom of the cleaning tank is provided with a support frame.

[0014] Beneficial effects: The cleaning device for an internal feedback closed hydrostatic bearing of this utility model has the following beneficial effects:

[0015] 1) There is an annular oil groove on the inner ring surface of the support ring. Oil is supplied to each oil inlet on the outer ring surface of the hydrostatic bearing through the annular oil groove. The cleaning oil is sprayed out after passing through each oil passage and oil cavity in the hydrostatic bearing, achieving the effect of cleaning the hydrostatic bearing. The cleaning efficiency is high, and this oil supply method makes it less likely that any holes will be missed and not cleaned or deburred.

[0016] 2) The support ring is detachably mounted on several circumferentially distributed support columns, which are fixed on the base plate. The base plate, support ring, and several support columns are combined to form a cleaning assembly. Different cleaning assemblies can be replaced according to the specifications and dimensions of the hydrostatic bearing. In addition, the support ring is easy to remove and disassemble on the support columns. Attached Figure Description

[0017] Appendix Figure 1 This is a three-dimensional schematic diagram of the cleaning device;

[0018] Appendix Figure 2 A schematic diagram showing the quick clamp pressing against the support ring;

[0019] Appendix Figure 3 This is a top view of the cleaning device;

[0020] Appendix Figure 4 This is an overall sectional view of the cleaning device;

[0021] Appendix Figure 5 A cross-sectional view of a hydrostatic bearing placed on a cleaning assembly;

[0022] Appendix Figure 6 This is a schematic diagram of the hydrostatic bearing.

[0023] Appendix Figure 7 This is a schematic diagram of a first embodiment of the cleaning assembly;

[0024] Appendix Figure 8 This is a schematic diagram of a second embodiment of the cleaning assembly. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] As attached Figures 1 to 8 The cleaning device for an internal feedback closed hydrostatic bearing includes a cleaning tank 1. Inside the cleaning tank 1 is a support ring 3 for supporting the hydrostatic bearing 2. An annular oil groove 4 is provided on the inner ring surface of the support ring 3. An oil supply hole 5 is also provided on the support ring 3, radially penetrating both the inner and outer ring surfaces of the support ring 3. One end of the oil supply hole 5 facing the inner ring surface of the support ring 3 is connected to the annular oil groove 4, and the other end facing the outer ring surface of the support ring 3 is connected to an oil supply pipeline. Therefore, the annular oil groove 4 is connected to the oil supply pipeline through the oil supply hole 5, and the oil supply pipeline can supply oil to the annular oil groove 4 through the oil supply hole 5.

[0027] When the hydrostatic bearing 2 is placed on the support ring 3, the outer ring surface of the hydrostatic bearing 2 is fitted with the inner ring surface of the support ring 3 with a small clearance, and the annular oil groove 4 is opposite to the oil inlet hole 7 on the outer ring surface of the hydrostatic bearing 2. When the oil supply line supplies oil to the annular oil groove 4, the high-pressure cleaning oil in the annular oil groove 4 can enter the oil passage hole and oil cavity of the hydrostatic bearing 2 through the oil inlet hole 7, carrying away the chips and impurities in the hydrostatic bearing 2, and removing the burrs at the intersecting parts inside the hydrostatic bearing 2.

[0028] The cleaning tank 1 contains several support columns 6 arranged in a circular array. Each support column 6 has a stepped notch 8 on its top side facing the center of the circular array. The support ring 3 is positioned on these stepped notches 8. The contour shape formed by the stepped notches 8 matches the outer ring shape of the support ring 3, thus limiting the support ring 3 and preventing it from wobbling. A clamping mechanism for pressing the support ring 3 is also provided on the support columns 6.

[0029] As attached Figure 7 and 8 As shown, the outer diameters of hydrostatic bearings 2 of different specifications are different, so the support rings 3 also need to be replaced accordingly. In this utility model, a number of support columns 6 distributed in a ring array are used to support the support rings 3, and there are gaps between adjacent support columns 6, which facilitates the operation of loading and unloading the support rings and improves the replacement efficiency of the support rings 3.

[0030] The lower ends of several support columns 6 are fixedly mounted on the base plate 9. The base plate 9, support ring 3, and several support columns 6 combine to form a replaceable cleaning assembly. Because the hydrostatic bearings 2 have different specifications and sizes, each type of hydrostatic bearing 2 has a corresponding dedicated cleaning assembly that can be placed inside the cleaning tank 1 for use. Several lifting eye bolts 12 are provided on the base plate 9, specifically as shown in the attached diagram. Figure 3 As shown, the base plate 9 is an octagonal plate. Four lifting eye bolts 12 are installed on the base plate 9 near the four short sides. By using a lifting tool to hang the four lifting eye bolts 12, different models of cleaning components can be quickly and smoothly installed, removed, and replaced.

[0031] The oil supply port 5 is detachably connected to the oil supply pipeline. The oil supply pipeline includes an external oil supply hose connected to the oil pump and an internal oil supply hose installed inside the cleaning tank 1. The internal oil supply hose is a steel wire reinforced PVC hose 14. When replacing the cleaning components, the connection between the oil supply port 5 and the oil supply pipeline is disconnected. Furthermore, the cleaning tank 1 is provided with an oil inlet port 20, and the external oil supply hose is connected to the oil supply port 5 after connecting to the oil inlet port 20. See attached diagram for details. Figure 3 As shown, the oil supply hole 5 is threaded with a threaded connector inside the hole on the outer ring surface of the support ring 3, and the oil inlet hole 20 is also threaded with a threaded connector. The steel wire skeleton PVC hose 14 also has threaded connectors at both ends. With the help of the threaded connectors, the two ends of the steel wire skeleton PVC hose 14 are respectively connected to the oil supply hole 5 and the oil inlet hole 20.

[0032] An oil drain hole 21 is also provided at the bottom of the cleaning tank 1. The oil drain hole 21 is connected to the filter device, and the filtered clean cleaning oil can be recycled. Correspondingly, an oil return mechanism connected to the oil supply line can be provided to recycle the cleaning oil.

[0033] As attached Figure 2 In the embodiment shown, the clamping mechanism is a quick-release clamp 10, and a blind hole 11 is provided on the upper end face of the support ring 3. The pressure head of the quick-release clamp 10 is opposite to the blind hole 11, and when the pressure head is inserted into the blind hole 11, it presses the support ring 3 against the stepped notch 8. This prevents the support ring 3 from falling off the support column 6 and being damaged during the replacement of the cleaning assembly.

[0034] As attached Figure 6 As shown, a flange 13 is integrally connected to the hydrostatic bearing 2. When the hydrostatic bearing 2 is placed on the support ring 3, the flange 13 presses against the upper end face of the support ring 3. Several threaded holes are distributed on the upper end face of the support ring 3, and several through holes are provided on the flange 13. Screws 15 pass through the through holes and are screwed into the threaded holes to fix the hydrostatic bearing 2 to the support ring 3. Furthermore, before placing the hydrostatic bearing 2 on the support ring 3, the pressure head of the quick-release clamp 10 is raised. The quick-release clamp 10 does not participate in the clamping operation of the hydrostatic bearing 2; it only protects the support ring 3 from falling off when loading and unloading the cleaning assembly.

[0035] The cleaning tank 1 has an openable and closable transparent cover 16 at its top opening, which may be made of transparent resin. The transparent cover 16 is connected to the rear edge of the top opening of the cleaning tank 1 via a hinge plate. The transparent cover 16 can rotate up and down around the pivot pin of the hinge plate, allowing the top opening of the cleaning tank 1 to open or close. Support rods are threadedly fixed to both sides of the transparent cover 16, and support rods are also threadedly fixed to the interior of both sides of the top opening of the cleaning tank 1. The two ends of two gas spring support rods 22 are respectively hinged to the four support rods. During loading and unloading, the gas spring support rods 22 can support the transparent cover 16, preventing it from falling and keeping it open. A latch assembly 23 is fixedly connected to the front side of the top opening of the cleaning tank 1. A curved hook, which works in conjunction with the latch assembly 23, is fixedly installed on the edge of the transparent cover 16. When the transparent cover 16 is closed, the latch of the latch assembly 23 can engage the curved hook to lock the transparent cover 16 in place, preventing it from popping open or vibrating during cleaning. During the cleaning process, the operator can observe the internal working status of the cleaning tank 1 at any time through the transparent cover 16.

[0036] Furthermore, the upper opening of the cleaning tank 1 forms an inclined plane. Each cleaning assembly includes four support columns 6, with the two side support columns 6 being of equal height, and the rear support column 6 being higher than the front support column 6. The inner sides of the four support columns 6 are parallel to each other in pairs. The inner side of the top of each support column 6 has a stepped notch with its bottom surface parallel to the inclined plane formed by the four sides of the opening of the cleaning tank 1, and its side surface perpendicular to the inclined plane formed by the four sides of the opening of the cleaning tank 1. On the outer ring surface of the support ring 2, four parallel planes are milled in pairs. The bottom surface and side plane of the support ring 2 are respectively in close contact with the bottom surface and side surface of the stepped notch 8 at the top of the support column 6, and are placed within the stepped notch 8 at the top of the support column 6. The upper and lower end faces of the support ring 2 are parallel to the inclined plane formed by the upper opening of the cleaning tank 1.

[0037] An oil receiving tray 17 is provided around the bottom periphery of the cleaning tank 1. (See attached image) Figure 1 As shown, a ring of eaves-shaped oil receiving trays 17 are welded to the bottom of the cleaning tank 1. The oil receiving trays 17 are sealed to the outer wall of the cleaning tank 1 to prevent residual cleaning oil on the hydrostatic bearing 2 from dripping onto the ground during loading and unloading. A lifting lug 18 is welded to each of the two outer walls of the cleaning tank 1 assembly, allowing lifting equipment to hook onto the lugs 18 and move the cleaning equipment. A support frame 19 is provided at the bottom of the cleaning tank 1.

[0038] The working principle of this invention is as follows: After installing the internal feedback closed hydrostatic bearing 2 to be cleaned onto the cleaning assembly, the high-pressure cleaning oil supply system of the equipment is turned on. A very thin oil film is formed between the outer ring surface of the hydrostatic bearing 2 and the inner ring surface of the support ring 3. Under the action of the surface tension of the cleaning oil, a stable crescent-shaped interface is formed at the contact end of the oil film with the air, which plays a sealing role and prevents cleaning oil leakage and pressure loss. The high-pressure cleaning oil enters the oil inlet 7 of the hydrostatic bearing 2 from the oil tank and flows along the oil path of the hydrostatic bearing 2 through each oil passage hole, flowing into each oil cavity inside the hydrostatic bearing 2. During this process, the high-speed, high-pressure cleaning oil carries away the chips and other particulate impurities remaining in the oil path of the hydrostatic bearing 2, and at the same time, thoroughly removes the burrs at the intersection of the oil passage holes. Since each oil chamber of the hydrostatic bearing 2 is in an open state, the high-pressure cleaning oil is sprayed directly from the oil holes of each oil chamber and then falls back into the cleaning tank 1. The cleaning oil with impurities flows from the drain hole 21 at the bottom of the cleaning tank 1 to the filter device. After filtration, the clean cleaning oil flows back to the oil supply tank of the oil pump and enters the cleaning oil circuit for recycling.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cleaning device for an internal feedback closed hydrostatic bearing, characterized in that: The system includes a cleaning tank (1), which is equipped with a support ring (3) for supporting the hydrostatic bearing (2). The inner ring surface of the support ring (3) is provided with an annular oil groove (4). The support ring (3) is also provided with an oil supply hole (5) that communicates with the annular oil groove (4). The annular oil groove (4) is connected to the oil supply pipeline through the oil supply hole (5). When the hydrostatic bearing (2) is placed on the support ring (3), the annular oil groove (4) is opposite to the oil inlet hole (7) on the outer ring surface of the hydrostatic bearing (2). The cleaning oil in the annular oil groove (4) can enter the oil passage hole and oil cavity of the hydrostatic bearing (2) through the oil inlet hole (7).

2. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: The cleaning tank (1) contains several support columns (6) arranged in a ring array. The top of the support column (6) is provided with a stepped notch (8) on the side facing the center of the ring array. The support ring (3) is placed on the stepped notch (8). The support column (6) is also provided with a pressing mechanism for pressing the support ring (3).

3. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 2, characterized in that: The lower ends of several of the support columns (6) are fixedly installed on the base plate (9); the base plate (9), the support ring (3) and several support columns (6) are combined to form a replaceable cleaning assembly, and the oil supply hole (5) is detachably connected to the oil supply pipeline.

4. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 3, characterized in that: The clamping mechanism is a quick clamp (10), and the upper end face of the support ring (3) is provided with a blind hole (11); the pressure head of the quick clamp (10) is opposite to the blind hole (11), and when the pressure head is inserted into the blind hole (11), it presses the support ring (3) onto the step notch (8).

5. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 3, characterized in that: The base plate (9) is provided with several eye bolts (12).

6. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: The hydrostatic bearing (2) is integrally connected to a flange (13). When the hydrostatic bearing (2) is placed on the support ring (3), the flange (13) presses against the upper end face of the support ring (3). The upper end face of the support ring (3) has several threaded holes. The flange (13) has several through holes. The screw (15) passes through the through hole and is screwed into the threaded hole to fix the hydrostatic bearing (2) on the support ring (3).

7. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: The cleaning tank (1) is provided with an oil inlet (20), and the oil supply pipeline includes an external oil supply hose, which is connected to the oil supply hole (5) after being connected to the oil inlet (20); the bottom of the cleaning tank (1) is provided with an oil drain hole (21).

8. The cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: The cleaning tank (1) is equipped with an openable and closable transparent cover (16) at its upper opening.

9. A cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: An oil receiving tray (17) is provided on the bottom periphery of the cleaning tank (1).

10. A cleaning device for an internal feedback closed hydrostatic bearing according to claim 1, characterized in that: The cleaning tank (1) is provided with lifting lugs (18) on its outer wall and a support frame (19) is provided at the bottom of the cleaning tank (1).

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