Hydrostatic pressure turntable annular oil chamber pressure stabilizing device

Abstract

The utility model discloses a kind of liquid static pressure rotary table annular oil cavity pressure stabilizing device, belong to static pressure rotary table technical field. Mainly including static pressure rotary table, the static pressure rotary table has inlet and outlet, and pressure stabilizing component is arranged on static pressure rotary table, and pressure stabilizing component includes connecting pipe, the connecting pipe is connected with inlet, flow regulator, the flow regulator has oil outlet pipe and oil inlet pipe, oil outlet pipe and connecting pipe are connected, transition pipe, one end of the transition pipe and the one end of oil inlet pipe are aligned, filter screen is arranged inside one end of transition pipe, and helical blade is concentrically arranged on filter screen. A kind of liquid static pressure rotary table annular oil cavity pressure stabilizing device of the application, by the setting of pressure stabilizing component, oil can be filtered between entering flow regulator, and then reduce the process of long time use, impurity in oil blocks flow regulator, reach before entering flow regulator reduce the effect of impurity in oil.

Description

Technical Field

[0001] This utility model relates to the field of hydrostatic turntable technology, specifically a pressure stabilizing device for a liquid hydrostatic turntable with an annular oil chamber. Background Technology

[0002] The hydrostatic turntable is based on hydrostatic bearing technology. A stable liquid film is formed between the turntable and the bearing by high-pressure liquid (usually oil), which supports the turntable and reduces friction. The annular oil chamber pressure stabilizing device utilizes the special structure of the annular oil chamber to ensure the pressure in the oil chamber is stable through constant pressure or constant flow oil supply, thereby forming a uniform pressure oil film.

[0003] In the prior art, when stabilizing the oil chamber of a hydrostatic turntable, a throttle is usually installed at the oil inlet of the oil chamber. The throttle is used to maintain a constant value for the flow rate of the oil entering the oil chamber, thereby ensuring that the pressure in the oil chamber remains stable.

[0004] Because throttles typically employ designs such as orifice throttling, capillary throttling, or diaphragm feedback throttling, their flow channel dimensions are extremely small (the diameter may be only 0.1~1mm). If solid particles (such as metal shavings) are mixed into the oil, they can easily clog the throttle's flow channel.

[0005] Therefore, it is necessary to provide a hydrostatic rotary table annular oil chamber pressure stabilizing device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a liquid hydrostatic turntable annular oil chamber pressure stabilizing device to reduce impurities in the oil before it enters the throttle.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is: a hydrostatic turntable annular oil chamber pressure stabilizing device, comprising:

[0009] A hydrostatic rotary table having a liquid inlet and a liquid outlet;

[0010] A voltage regulator assembly, mounted on a static pressure turntable, includes:

[0011] A connecting pipe that connects to the liquid inlet;

[0012] A throttle device having an oil outlet pipe and an oil inlet pipe, with the oil outlet pipe connected to a connecting pipe;

[0013] A transition pipe, one end of which is aligned with one end of the oil inlet pipe;

[0014] A filter screen is installed inside one end of the transition tube, and spiral blades are concentrically arranged on the filter screen.

[0015] Furthermore, the transition pipe has an oil inlet and an oil outlet.

[0016] Furthermore, the filter screen is located at the oil outlet.

[0017] Furthermore, the outer ring of the transition tube is slidably equipped with a clamping ring, which is made of elastic material.

[0018] Furthermore, the inner ring of the clamping ring is slidably embedded with an elastic liner, and the inner ring of the elastic liner is provided with a sealing ring.

[0019] Furthermore, the sealing ring fits snugly against the outer circumference of the transition tube.

[0020] Furthermore, a screw is fixedly mounted on one end of the clamping ring, while the other end of the clamping ring is slidably mounted on the screw.

[0021] Furthermore, a nut is threaded onto the screw, and the nut abuts against the outside of the clamping ring.

[0022] By adopting the above technical solution, this utility model has the following beneficial effects: by setting the pressure stabilizing component, the oil can be filtered before entering the throttle, thereby reducing the blockage of the throttle by impurities in the oil during long-term use, and achieving the effect of reducing impurities in the oil before entering the throttle. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of a liquid static pressure turntable annular oil chamber pressure stabilizing device according to this application;

[0024] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 for Figure 1 A cross-sectional view of the middle section of the structure;

[0026] The following are the labeling elements in the figure:

[0027] 1. Static pressure turntable; 101. Liquid inlet; 102. Liquid outlet; 2. Pressure stabilizing assembly; 21. Connecting pipe; 22. Throttling device; 23. Transition pipe; 24. Oil inlet; 241. Oil outlet; 25. Oil inlet pipe; 26. Clamping ring; 27. Screw; 28. Elastic liner; 281. Sealing ring; 29. ​​Nut; 3. Filter screen; 31. Spiral blade. Detailed Implementation

[0028] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] like Figures 1-3 As shown, this application provides a hydrostatic rotary table annular oil chamber pressure stabilizing device, including a hydrostatic rotary table 1. The hydrostatic rotary table 1 has an inlet 101 suitable for oil inlet and an outlet 102 suitable for oil outlet, so as to circulate oil into the hydrostatic rotary table 1 through the inlet 101 and outlet 102, thereby driving its output end to rotate.

[0030] The hydrostatic turntable 1 is equipped with a pressure stabilizing component 2, which is suitable for maintaining a constant oil flow rate. Specifically:

[0031] The pressure stabilizing assembly 2 includes a connecting pipe 21 fixedly installed on the liquid inlet 101. A throttle 22 is provided at the end of the connecting pipe 21 away from the liquid inlet 101. The throttle 22 has an oil inlet pipe 25 suitable for oil inlet and an oil outlet pipe (not shown in the figure) suitable for oil outlet. The oil outlet pipe and the end of the connecting pipe 21 away from the liquid inlet 101 are fixedly connected.

[0032] A transition pipe 23 is provided on one side of the oil inlet pipe 25. The transition pipe 23 has an oil inlet 24 suitable for oil inlet and an oil outlet 241 suitable for oil outlet. The oil inlet 24 can be connected to an external oil supply device, and the oil outlet 241 can be aligned with the end of the oil inlet pipe 25.

[0033] So that under the drive of the oil supply equipment, the oil is introduced into the oil inlet 24 and discharged from the oil outlet 241 to the throttle 22. After the flow rate is controlled by the throttle 22, the oil is introduced into the static pressure turntable 1 through the liquid inlet 101 to drive the output end of the static pressure turntable 1 to rotate.

[0034] Continue to refer to Figure 3 A filter screen 3 adapted to the inner wall of the transition pipe 23 is provided at the oil outlet 241. A spiral blade 31 is concentrically arranged on the filter screen 3, and the spiral blade 31 is in contact with the inner wall of the oil outlet pipe.

[0035] So that when the oil entering the transition pipe 23 flows from the oil inlet 24 to the oil outlet 241, it can move along the spiral path of the spiral blade 31, thereby generating relative rotational motion.

[0036] If there are solid particles, such as metal shavings, in the oil, the density of the metal shavings is greater than that of the oil. As the oil spirals forward, the particles will be subjected to an outward centrifugal force, causing them to be thrown against the wall of the transition pipe 23 and accumulate in the pipe wall area. At this time, the relatively "clean" oil (with less impurities) is mainly distributed in the central area of ​​the pipe and continues to move along the spiral path until it is discharged from the oil outlet 241 into the throttle 22, so as to achieve the effect of filtering impurities.

[0037] At the same time, when the oil is discharged from the oil outlet 241, the oil can be filtered again under the action of the filter screen 3, which further improves the filtration effect, thereby reducing the risk of blockage of the throttle 22, reducing the large fluctuation of oil chamber pressure, and reducing the impact of impurities in the oil on the system pressure when the oil enters the hydrostatic turntable 1.

[0038] Continue to refer to Figure 2 A clamping ring 26 is slidably provided on the outer ring of the transition tube 23. The clamping ring 26 is made of elastic material, and an elastic inner liner 28 is slidably embedded in the inner ring of the clamping ring 26. A sealing ring 281 is provided on the inner ring of the elastic inner liner 28, and the sealing ring 281 fits against the outer circle of the transition tube 23.

[0039] So that when the oil outlet 241 of the transition pipe 23 is aligned with the end of the oil inlet pipe 25, the clamping ring 26 is pulled, which in turn drives the sealing ring 281 to slide outside the transition pipe 23 until the sealing ring 281 wraps around the connection between the transition pipe 23 and the oil inlet pipe 25, thereby sealing the connection.

[0040] A screw 27 is fixedly installed at one end of the clamping ring 26, and the other end of the clamping ring 26 is slidably installed on the screw 27. A nut 29 is threadedly connected to the screw 27. The nut 29 abuts against the outside of the other end of the clamping ring 26. When the sealing ring 281 wraps around the connection between the transition pipe 23 and the oil inlet pipe 25, the nut 29 can be rotated to move along the axis of the screw 27. This causes the end of the clamping ring 26 near the nut 29 to move closer to the other end of the clamping ring 26, thereby clamping the sealing ring 281 onto the transition pipe 23 to fix it.

[0041] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure stabilizing device for a hydrostatic rotary table with an annular oil chamber, characterized in that: include: A hydrostatic turntable (1) has an inlet (101) and an outlet (102). A voltage stabilizing component (2) is disposed on the static pressure turntable (1), and the voltage stabilizing component (2) includes: A connecting pipe (21) is connected to the liquid inlet (101); A throttle (22) having an oil outlet pipe and an oil inlet pipe (25), the oil outlet pipe being connected to the connecting pipe (21); A transition pipe (23) is provided, one end of which is aligned with one end of the oil inlet pipe (25); A filter screen (3) is disposed inside one end of the transition tube (23), and spiral blades (31) are concentrically arranged on the filter screen (3).

2. The hydrostatic rotary table annular oil chamber pressure stabilizing device according to claim 1, characterized in that: The transition pipe (23) has an oil inlet (24) and an oil outlet (241).

3. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 2, characterized in that: The filter screen (3) is located at the oil outlet (241).

4. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 3, characterized in that: The outer ring of the transition tube (23) is slidably provided with a clamping ring (26), which is made of elastic material.

5. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 4, characterized in that: The inner ring of the clamping ring (26) is slidably fitted with an elastic liner (28), and the inner ring of the elastic liner (28) is provided with a sealing ring (281).

6. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 5, characterized in that: The sealing ring (281) fits against the outer circle of the transition tube (23).

7. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 6, characterized in that: One end of the clamping ring (26) is fixedly provided with a screw (27), and the other end of the clamping ring (26) is slidably provided on the screw (27).

8. The annular oil chamber pressure stabilizing device for a hydrostatic turntable according to claim 7, characterized in that: A nut (29) is threaded onto the screw (27), and the nut (29) abuts against the outside of the clamp (26).

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