Electro-hydraulic servo fatigue static pressure bearing actuator

Abstract

The utility model relates to the technical field of mechanical engineering, and discloses an electro-hydraulic servo fatigue static pressure supporting actuator which comprises a supporting base, an annular plate is fixedly connected to the inner wall of the supporting base, an adjusting unit is arranged on the outer side of the annular plate, a plurality of first adjusting ports and a plurality of second adjusting ports are formed in the inner wall of the supporting base, and the first adjusting ports and the second adjusting ports are arranged on the outer side of the annular plate. A multi-point fixing unit is arranged in each supporting base, a plurality of storage grooves are formed in the inner wall of each supporting base, and the device can effectively adjust a gap in the matching position with a moving part through a silica gel arc-shaped plate, a first adjusting rod and a first threaded cylinder in the adjusting unit; when a gap is generated at the matching position of the static pressure supporting structure and the moving part due to abrasion, the first knob is rotated to drive the first adjusting rod to rotate, the first adjusting rod slides in the rubber sleeve and pushes the silica gel arc-shaped plate to move, the attaching degree of the silica gel arc-shaped plate and the moving part is adjusted, and accurate control over the gap is achieved; and the problem that the motion precision of the actuator is reduced due to gap increase is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering technical field, more specifically, it relates to electro-hydraulic servo fatigue static pressure supporting actuator. BACKGROUND

[0002] Mechanical engineering is an engineering discipline that applies scientific principles to the design, manufacture, installation, operation and maintenance of mechanical systems, it covers a wide range of fields from micro mechanical part design to macro large-scale mechanical equipment system integration, among numerous mechanical systems, electro-hydraulic servo fatigue static pressure supporting actuator is an important component, it has key applications in occasions requiring high-precision control and bearing fatigue load, especially in equipment with extremely high requirements for movement precision, bearing capacity and reliability, as one of the core parts, supporting actuator plays an indispensable role.

[0003] However, the existing electro-hydraulic servo fatigue static pressure supporting actuator is prone to gap at the matching part of the static pressure supporting structure and the moving part due to wear during long-term fatigue work, as the wear intensifies, the gap gradually increases, which will lead to the decline of the movement precision of the actuator, unable to meet the high-precision work requirements, at the same time, the generation of gap will also cause the leakage of hydraulic oil, not only reduces the energy utilization efficiency, increases the operation cost, but also may affect the stability and reliability of the equipment, even causes safety hidden trouble in some key application scenarios. UTILITY MODEL CONTENT

[0004] (I) technical problems solved

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an electro-hydraulic servo fatigue static pressure supporting actuator, which aims at solving the problems in the above background technology.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides following technical scheme: Electro -hydraulic servo fatigue static pressure support actuator, including support base, the inner wall of support base is fixedly connected with annular plate, the outside of annular plate is provided with adjusting unit, the inner wall of support base is opened with a plurality of first adjusting mouth and a plurality of second adjusting mouth respectively, the inside of support base is provided with multi -point fixed unit, the inner wall of each support base is opened with a plurality of receiving grooves, the inside of each receiving groove is communicated with the inside of first adjusting mouth, adjusting unit includes two silica gel arc plates in the inside of support base, the inner wall of each second adjusting mouth is fixedly connected with rubber sleeve and first threaded cylinder, the outer surface of two silica gel arc plates is fixedly connected with three first bearings, the inner ring of each first bearing is fixedly connected with first adjusting rod, one end of each first adjusting rod is penetrated second adjusting mouth and extends to the outside of support base, the outer surface of each first adjusting rod is opened with first threaded groove, the outer surface of each first adjusting rod is slidably connected with the inside of rubber sleeve, the inner wall of each first threaded groove is threadedly connected with the inner wall of first threaded cylinder.

[0008] The utility model further sets up, the outer surface of each silica gel arc plate is fixedly connected with three first telescopic tubes, the inner wall of annular plate is opened with a plurality of connecting grooves, the inner wall of each connecting groove is fixedly connected with six second telescopic tubes, the inner wall of each second telescopic tube is fixedly connected with damping spring with the inner wall of first telescopic tube.

[0009] The utility model further sets up, the outside of each first adjusting rod is provided with first knob, and one end of each first knob is fixedly connected with one end of first adjusting rod.

[0010] The utility model further sets up, the multi -point fixed unit includes a plurality of second adjusting rods, the outer surface of each second adjusting rod is opened with second threaded groove, the inner wall of each first adjusting mouth is fixedly connected with second threaded cylinder, the inner wall of each second threaded groove is threadedly connected with the inner wall of second threaded cylinder, one end of each second adjusting rod is fixedly connected with second bearing, the outer surface of each second bearing is fixedly connected with connector, one end of each connector is fixedly connected with tapered extrusion board, the outer surface of each tapered extrusion board is fixedly connected with two bearing seats, the inner ring of each bearing seat is fixedly connected with rotating rod, one end of each rotating rod is fixedly connected with the outer surface of connector, and one end of each second adjusting rod is penetrated to the outside of support base.

[0011] The utility model further sets up, the outside of each second adjusting rod is provided with second knob, and one end of each second knob is fixedly connected with one end of second adjusting rod.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The electro-hydraulic servo fatigue hydrostatic bearing actuator, through the silica gel arc-shaped plate, the first adjusting rod and the first threaded cylinder in the adjusting unit, can effectively adjust the gap at the matching position of the hydrostatic bearing structure and the moving part, when the gap is generated at the matching position of the hydrostatic bearing structure and the moving part due to wear, the first knob is rotated to drive the first adjusting rod to rotate, since the first adjusting rod is in threaded connection with the first threaded cylinder, the first adjusting rod will slide in the rubber sleeve and push the silica gel arc-shaped plate to move, the two silica gel arc-shaped plates move towards or away from each other, so that the fitting degree with the moving part is adjusted, the precise control of the gap is realized, the problem that the movement precision of the actuator is reduced due to the increase of the gap is avoided, and the adjusting unit also has the buffering and damping function, the silica gel arc-shaped plate, the first telescopic cylinder, the second telescopic cylinder and the damping spring work cooperatively, when the actuator is impacted by vibration, the silica gel arc-shaped plate is elastically buffered, the first telescopic cylinder, the second telescopic cylinder and the damping spring convert the vibration energy into elastic potential energy, the influence of the vibration on the internal components is reduced, the service life of the actuator is prolonged, through the second adjusting rod and the conical extrusion plate in the multi-point fixing unit, the fixing effect on the moving part can be enhanced, when the moving part needs to be fixed, the second knob is rotated to drive the second adjusting rod to rotate, the second adjusting rod is in threaded connection with the second threaded cylinder, so that the conical extrusion plate at one end of the second adjusting rod moves, the special shape of the conical extrusion plate is utilized to extrude and fix the moving part at multiple points, and the design of the rotating rod and the bearing seat makes the conical extrusion plate better adapt to the shape of the component, the unit can also fix the component according to the fixing point position and the number of point pressure, the adaptability and stability of the fixing are improved, the leakage of the hydraulic oil is avoided, the operation cost is reduced, the stability and reliability of the equipment are improved, and the safety hidden danger in the key application scene is eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a sectional view three-dimensional structure schematic diagram of the supporting base of the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the first adjusting port of the utility model;

[0018] Figure 4 It is a three-dimensional structure schematic diagram of the first adjusting rod of the utility model;

[0019] Figure 5 It is a sectional view three-dimensional enlarged structure schematic diagram of the second telescopic cylinder of the utility model;

[0020] Figure 6 The utility model discloses a connector's detail three-dimensional enlarged structure schematic view.

[0021] In the drawing: 1, support baseplate, 2, second knob, 3, first knob, 4, second threaded cylinder, 5, annular plate, 6, silica gel arc plate, 7, conical extrusion plate, 8, first threaded cylinder, 9, rubber sleeve, 10, first bearing, 11, first adjusting rod, 12, connector, 13, storage groove, 14, first adjusting port, 15, second adjusting port, 16, connecting groove, 17, first telescopic cylinder, 18, second telescopic cylinder, 19, first threaded groove, 20, shock absorbing spring, 21, second threaded groove, 22, second adjusting rod, 23, rotating rod, 24, second bearing, 25, bearing seat. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by ordinary skilled in the art to which the present application belongs.

[0024] In the present application, unless otherwise specified, the directions such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions. Similarly, for the convenience of understanding and description, "left, right" are generally directed to the left and right shown in the drawings, and "inner, outer" are directed to the inner and outer relative to the contour of each component itself, but the above direction words are not used to limit the present application.

[0025] Please refer to Figures 1-6The adjusting unit comprises two silica gel arc-shaped plates 6 located in the inside of the supporting base 1, the inner wall of each second adjusting opening 15 is fixedly connected with a rubber sleeve 9 and a first threaded cylinder 8, the outer surfaces of the two silica gel arc-shaped plates 6 are fixedly connected with three first bearings 10, the inner ring of each first bearing 10 is fixedly connected with a first adjusting rod 11, one end of each first adjusting rod 11 penetrates through the second adjusting opening 15 and extends to the outside of the supporting base 1, the outer surface of each first adjusting rod 11 is provided with a first threaded groove 19, and the outer surface of each first adjusting rod 11 is in sliding connection with the inside of the rubber sleeve 9, and the inner wall of each first threaded groove 19 is in threaded connection with the inner wall of the first threaded cylinder 8.

[0026] Specifically, when it is necessary to install or adjust related components, the supporting base 1 serves as a basic support structure and provides a stable installation platform for the whole actuator, the annular plate 5 is fixed to the inner wall of the supporting base 1 and plays a role in positioning and connecting the adjusting unit, the plurality of first adjusting openings 14 and second adjusting openings 15 provide movable channels for the adjusting rods of the adjusting unit and the multi-point fixing unit, the receiving grooves 13 are in communication with the first adjusting openings 14 and can be used for receiving or guiding related components, thereby facilitating subsequent adjustment and maintenance, when it is necessary to adjust the gap at the cooperation position of the moving component, the first knob 3 is rotated to drive the first adjusting rod 11 to rotate, since the first threaded groove 19 in the outer surface of the first adjusting rod 11 is in threaded connection with the inner wall of the first threaded cylinder 8 and the first adjusting rod 11 slides in the rubber sleeve 9, the first adjusting rod 11 moves along the axial direction, thereby driving the silica gel arc-shaped plate 6 connected thereto to move, the two silica gel arc-shaped plates 6 move towards or away from each other, thereby adjusting the fitting degree of the moving component, achieving precise control over the gap and solving the problem that the wear causes the gap to increase and affects the movement precision.

[0027] Please refer to Figures 1-6 The outer surface of each silica gel arc-shaped plate 6 is fixedly connected with three first telescopic cylinders 17, the inner wall of the annular plate 5 is provided with a plurality of connecting grooves 16, the inner wall of each connecting groove 16 is fixedly connected with six second telescopic cylinders 18, the inner wall of each second telescopic cylinder 18 is fixedly connected with a damping spring 20 in common with the inner wall of the first telescopic cylinder 17, the outside of each first adjusting rod 11 is provided with a first knob 3, and one end of each first knob 3 is fixedly connected with one end of the first adjusting rod 11.

[0028] Specifically, when the actuator is subjected to vibration impact during operation, the silica gel arc-shaped plate 6 first buffers part of the vibration due to its elasticity, at the same time, the first telescopic cylinder 17 on the outer surface of the silica gel arc-shaped plate 6 telescopes with the vibration, the first telescopic cylinder 17 drives the damping spring 20 connected thereto to compress or stretch, the second telescopic cylinder 18 in the connecting groove 16 on the inner wall of the annular plate 5 also moves correspondingly, the damping spring 20 converts the vibration energy into elastic potential energy and consumes it, thereby reducing the impact of vibration on the internal components of the actuator, prolonging the service life of the actuator, and enhancing the stability of the actuator.

[0029] Please refer to Figures 1-6 The multi-point fixing unit comprises a plurality of second adjusting rods 22, a second threaded groove 21 is formed in the outer surface of each second adjusting rod 22, the inner wall of each first adjusting port 14 is fixedly connected with a second threaded cylinder 4, the inner wall of each second threaded groove 21 is in threaded connection with the inner wall of the second threaded cylinder 4, one end of each second adjusting rod 22 is fixedly connected with a second bearing 24, the outer surface of each second bearing 24 is fixedly connected with a connecting head 12, one end of each connecting head 12 is fixedly connected with a tapered extrusion plate 7, the outer surface of each tapered extrusion plate 7 is fixedly connected with two bearing seats 25, the inner ring of each bearing seat 25 is fixedly connected with a rotating rod 23, one end of each rotating rod 23 is fixedly connected with the outer surface of the connecting head 12, and one end of each second adjusting rod 22 penetrates to the outside of the supporting base 1.

[0030] Specifically, when the moving part is to be fixed, the second knob 2 is rotated, the second knob 2 drives the second adjusting rod 22 to rotate, the second threaded groove 21 on the outer surface of the second adjusting rod 22 is in threaded connection with the inner wall of the second threaded cylinder 4, so that the second adjusting rod 22 moves along the axial direction, the second bearing 24, the connecting head 12 and the tapered extrusion plate 7 at one end of the second adjusting rod 22 move accordingly, the special shape of the tapered extrusion plate 7 is utilized to extrude and fix the moving part from multiple points, at the same time, the bearing seat 25 and the rotating rod 23 enable the tapered extrusion plate 7 to better adapt to the shape of the part, enhance the fixing effect, and avoid hydraulic oil leakage.

[0031] Please refer to Figures 1-6 The outer side of each second adjusting rod 22 is provided with a second knob 2, and one end of each second knob 2 is fixedly connected with one end of the second adjusting rod 22.

[0032] Specifically, when fixing different shaped moving parts, the second knob 2 can be rotated to flexibly adjust the extension length of the second adjusting rod 22 according to the shape of the part, and then adjust the position of the tapered extrusion plate 7. Since each second adjusting rod 22 can be independently adjusted, the number of point positions can be adjusted according to the shape of the part, so that the multi-point fixing unit better adapts to parts of various shapes, improves the adaptability and stability of the fixing, ensures the stable and reliable operation of the equipment, and eliminates the safety hazards in the key application scenarios.

[0033] Working principle:

[0034] When the electro-hydraulic servo fatigue static pressure bearing actuator is working, the bearing base 1 serves as the foundation to provide stable support for the entire device, and the annular plate 5 on the inner wall positions and connects the adjusting unit. When the gap between the cooperating parts of the device increases due to wear during operation, affecting the movement precision, the first knob 3 is rotated, the first adjusting rod 11 is rotated, the first threaded groove 19 is connected with the first threaded cylinder 8 through screw connection, and the first threaded groove 19 slides in the rubber sleeve 9, the silica gel arc plate 6 is pushed to move, the gap with the moving part is accurately adjusted, if the actuator is subjected to vibration impact, the elasticity of the silica gel arc plate 6 first buffers part of the vibration, the first telescopic cylinder 17 on the outer surface of the silica gel arc plate 6 drives the shock absorbing spring 20 to extend and retract, the second telescopic cylinder 18 in the connecting groove 16 in the inner wall of the annular plate 5 cooperates to consume the vibration energy, reduces the impact on the internal components, and prolongs the service life of the actuator. In terms of fixing the moving part, the second knob 2 is rotated, the second adjusting rod 22 is rotated, the second threaded groove 21 is connected with the second threaded cylinder 4 through screw connection, and the second adjusting rod 22 moves along the axial direction, drives the second bearing 24, the connecting head 12 and the tapered extrusion plate 7 to move, and the tapered extrusion plate 7 is used to extrude and fix the moving part from multiple points. The bearing seat 25 and the rotating rod 23 make the tapered extrusion plate 7 better adapt to the shape of the part, avoid hydraulic oil leakage, and independently adjust the extension length of the second adjusting rod 22 by rotating the second knob 2 for different shaped moving parts. Adjust the position of the tapered extrusion plate 7, change the number of point positions, improve the adaptability and stability of the fixing, ensure the stable and reliable operation of the equipment, and eliminate safety hazards.

[0035] In all the schemes mentioned above, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be repeated here. In the above, when it is mentioned that it is fixedly connected, it is preferred to be welded. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electro-hydraulic servo fatigue hydrostatic bearing actuator, comprising a support base (1), characterized in that: An annular plate (5) is fixedly connected to the inner wall of the support base (1). An adjustment unit is provided on the outer side of the annular plate (5). A plurality of first adjustment ports (14) and a plurality of second adjustment ports (15) are respectively opened on the inner wall of the support base (1). A multi-point fixing unit is provided inside the support base (1). A plurality of storage slots (13) are opened on the inner wall of each support base (1). The interior of each storage slot (13) is connected to the interior of the first adjustment port (14). The adjustment unit includes two silicone arc plates (6) located inside the support base (1). An rubber rod is fixedly connected to the inner wall of each second adjustment port (15). The outer surfaces of the rubber sleeve (9) and the first threaded cylinder (8) are fixedly connected with three first bearings (10). The inner ring of each first bearing (10) is fixedly connected with a first adjusting rod (11). One end of each first adjusting rod (11) passes through the second adjusting port (15) and extends to the outside of the support base (1). The outer surface of each first adjusting rod (11) is provided with a first threaded groove (19). The outer surface of each first adjusting rod (11) is slidably connected to the inside of the rubber sleeve (9). The inner wall of each first threaded groove (19) is threadedly connected to the inner wall of the first threaded cylinder (8).

2. The electro-hydraulic servo fatigue hydrostatic bearing actuator according to claim 1, characterized in that: Each of the silicone arc plate (6) has three first telescopic cylinders (17) fixedly connected to its outer surface. The inner wall of the annular plate (5) has multiple connecting grooves (16). The inner wall of each connecting groove (16) is fixedly connected to six second telescopic cylinders (18). The inner wall of each second telescopic cylinder (18) is fixedly connected to the inner wall of the first telescopic cylinder (17) together with a shock-absorbing spring (20).

3. The electro-hydraulic servo fatigue hydrostatic bearing actuator according to claim 1, characterized in that: Each of the first adjusting rods (11) is provided with a first knob (3) on its outer side, and one end of each first knob (3) is fixedly connected to one end of the first adjusting rod (11).

4. The electro-hydraulic servo fatigue hydrostatic bearing actuator according to claim 1, characterized in that: The multi-point fixing unit includes multiple second adjusting rods (22). Each second adjusting rod (22) has a second threaded groove (21) on its outer surface. Each first adjusting port (14) has a second threaded cylinder (4) fixedly connected to its inner wall. The inner wall of each second threaded groove (21) is threadedly connected to the inner wall of the second threaded cylinder (4). One end of each second adjusting rod (22) is fixedly connected to a second bearing (24). The outer surface of each second bearing (24) is fixedly connected to a connector (12). One end of each connector (12) is fixedly connected to a conical extrusion plate (7). The outer surface of each conical extrusion plate (7) is fixedly connected to two bearing seats (25). The inner ring of each bearing seat (25) is fixedly connected to a rotating rod (23). One end of each rotating rod (23) is fixedly connected to the outer surface of the connector (12). One end of each second adjusting rod (22) extends through to the outside of the support base (1).

5. The electro-hydraulic servo fatigue hydrostatic bearing actuator according to claim 4, characterized in that: Each of the second adjusting rods (22) has a second knob (2) on its outer side, and one end of each second knob (2) is fixedly connected to one end of the second adjusting rod (22).

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