Hydraulic multi-rotation actuator

Abstract

The utility model relates to the technical field of hydraulic multi-rotation actuators, and discloses a hydraulic multi-rotation actuator, which adopts a mechanical rotation stroke limiting structure, utilizes a mounting support to mount and support a hydraulic motor, and is provided with a limiting bolt column in the middle. The limiting bolt column is fastened through a fastening nut and installed on an insection groove base on the side face of the installation support in an aligned and embedded mode, a rotary limiting ring base is installed on the upper portion of a driving shaft column of the hydraulic motor in a threaded mode, and the downward distance of the rotary limiting ring base can be limited by adjusting the supporting height of the limiting bolt column through abutting limiting. The downward movement amount of the rotation limiting ring seat corresponds to the rotation stroke of the driving shaft column, precise limiting of the rotation stroke of the actuator can be achieved, precise sensing is not needed to be matched with driving equipment, and the use cost of the actuator can be effectively reduced; the device can adjust and set different rotation strokes so as to meet the use requirements of different working scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic multi-rotation actuator technical field, concretely is a kind of hydraulic multi-rotation actuator. BACKGROUND

[0002] Actuator is an important component in automatic control system. Its function is to accept the control signal sent by controller, change the flow of controlled medium, so as to maintain the controlled variable at the required value or within a certain range. Actuator can be divided into three categories according to its energy form: pneumatic, hydraulic and electric. Hydraulic actuator uses high-pressure oil as energy, and its characteristics are simple structure, reliable operation, smooth operation, large output thrust and easy maintenance, so it is widely used in production processes such as chemical industry, papermaking and oil refining.

[0003] Hydraulic actuator relies on hydraulic motor to provide driving force during operation, and its rotation accuracy is limited by the structure of hydraulic motor. It is difficult to accurately control the starting and stopping stroke when controlling the opening and closing of multi-rotation valve. In order to improve the rotation accuracy, precise sensors and hydraulic modules are required to cooperate with the equipment, which greatly increases the working cost of the equipment. Therefore, a hydraulic multi-rotation actuator is proposed. SUMMARY

[0004] The utility model aims at providing a kind of hydraulic multi-rotation actuator to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of hydraulic multi-rotation actuator, including hydraulic motor, installation support, rotation limit ring seat and limit bolt column, the upper part of installation support is supported and installed in the hydraulic motor, the driving shaft column is installed in the shaft end of the hydraulic motor, the rotation limit ring seat is screw-threaded and installed in the upper part of driving shaft column;

[0006] The edge side of the installation support is provided with a toothed groove seat, the limit bolt column is adjustably installed in the middle part of the toothed groove seat, the rotation limit ring seat is movably embedded and installed in the middle part of the installation support, the edge side of the rotation limit ring seat is installed with a limit pressing block, and the limit pressing block and the limit bolt column are in contact when reaching the stroke stop position.

[0007] As a preferred, the lower part of the above-mentioned hydraulic motor is provided with a connecting end seat, the upper part of the installation support is fixedly connected with the connecting end seat through bolts, and the lower part of the installation support is provided with an installation base.

[0008] As a preferred, the driving shaft column is fixedly installed in the shaft end of the hydraulic motor, the bottom end of the driving shaft column is provided with a driving groove hole, and the two sides of the hydraulic motor are provided with hydraulic interfaces.

[0009] As preferred, the outer periphery of the driving shaft column is provided with a driving thread, the middle part of the rotary limiting ring seat is provided with a driving screw hole, the rotary limiting ring seat is threadedly installed on the upper part of the driving shaft column through the driving screw hole, the middle part of the mounting support is provided with a guide slot hole, and the rotary limiting ring seat is slidingly and fitly installed on the inner side of the guide slot hole.

[0010] As preferred, the limiting pressing block is fixedly installed on the side of the rotary limiting ring seat through a bolt, the side of the mounting support is provided with a pressing block guide slot, the limiting pressing block is slidingly installed on the inner side of the pressing block guide slot, and the lower part of the limiting pressing block is fixedly installed with a protective pressing pad.

[0011] As preferred, the toothed groove seats are arranged in pairs, two groups of the toothed groove seats are fixedly arranged on the two sides of the pressing block guide slot, the two sides of the limiting bolt column are provided with toothed fastening blocks, one side of the toothed fastening block is fixedly connected with the end of the limiting bolt column, the other side of the toothed fastening block is movably sleeved on the end of the limiting bolt column, and the tooth grooves of the two groups of toothed fastening blocks are respectively in position and fitly clamped with the tooth grooves in the two groups of toothed groove seats.

[0012] As preferred, the end of the limiting bolt column is provided with a fastening nut, the fastening nut is threadedly connected with the end of the limiting bolt column and is tightly attached with the toothed fastening block on the movable side.

[0013] Compared with the prior art, the above technical scheme has the following technical effects:

[0014] The present utility model adopts the above technical scheme and has the following technical effects compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without any creative effort based on these drawings also belong to the scope of the present application.

[0016] Figure 1 The overall upper side three-dimensional structure schematic view of the utility model;

[0017] Figure 2 The overall upper side three-dimensional structure schematic view of the utility model; Figure 1 The A area structure schematic view of the utility model;

[0018] Figure 3 The overall lower side three-dimensional structure schematic view of the utility model;

[0019] Figure 4 The mounting support internal structure schematic view of the utility model;

[0020] Figure 5 The mounting support internal structure schematic view of the utility model; Figure 4 The A area structure schematic view of the utility model.

[0021] The figure mark explanation: 1, hydraulic motor; 2, mounting support; 3, rotary limit ring seat; 4, limit bolt column; 5, connecting end seat; 6, drive shaft column; 7, limit pressing block; 8, tooth groove seat; 9, tooth tight block; 10, tight nut; 11, protection pressing pad; 12, mounting base; 13, hydraulic interface. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of the present application.

[0023] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the disclosed content of the specification for understanding and reading by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content of the present application.

[0024] EMBODIMENT

[0025] Please refer toFigures 1-5 The utility model provides a technical scheme: a hydraulic multi-rotation executor, including hydraulic motor 1, installation support 2, rotation limit ring seat 3 and limit peg column 4, as shown in the figure, in order to facilitate and installation support 2 connection installation, the lower part of hydraulic motor 1 is provided with the connecting end seat 5, and the upper part of installation support 2 is fixedly connected with the connecting end seat 5 through bolts, and hydraulic motor 1 is supported and installed on the upper part of installation support 2, is used for the work drive of equipment, in order to work installation with external equipment, the lower part of installation support 2 is provided with installation base 12, in order to realize driving force transmission, as shown in the figure, the rotating shaft end of hydraulic motor 1 is provided with drive shaft column 6, and drive shaft column 6 is fixedly installed on the rotating shaft end of hydraulic motor 1, in order to facilitate the butt joint installation of control rotating shaft with external equipment, the bottom end of drive shaft column 6 is provided with drive slot hole, in order to work connection with external hydraulic drive equipment, both sides of hydraulic motor 1 are provided with hydraulic interface 13. Figure 1 Figure 3

[0026] In order to facilitate the connection and installation of rotation limit ring seat 3, as shown in the figure, drive screw is arranged on the outer circumferential side of drive shaft column 6, drive screw hole is arranged in the middle of rotation limit ring seat 3, rotation limit ring seat 3 is screw-mounted on the upper part of drive shaft column 6 through the drive screw hole, guide slot hole is arranged in the middle of installation support 2, and rotation limit ring seat 3 is slidingly fitted and installed on the inner side of the guide slot hole, rotation limit ring seat 3 performs lifting movement by a corresponding distance when drive shaft column 6 rotates, in order to cooperate with limit peg column 4, limit pressing block 7 is installed on the side of rotation limit ring seat 3, limit pressing block 7 is fixedly installed on the side of rotation limit ring seat 3 through bolts, in order to facilitate the sliding guide of limit pressing block 7, pressing block guide slot is arranged on the side of installation support 2, limit pressing block 7 is slidingly installed on the inner side of the pressing block guide slot, in order to improve the service life of the equipment, protective pressure pad 11 is fixedly installed on the lower part of limit pressing block 7. Figure 4 In order to realize the installation and positioning of limit peg column 4, as shown in the figure, limit peg column 4 is slidingly installed on the inner side of the guide slot hole of installation support 2, in order to facilitate the installation and positioning of limit peg column 4, as shown in the figure, the outer circumferential side of limit peg column 4 is provided with limit screw, and the middle of rotation limit ring seat 3 is provided with limit screw hole, rotation limit ring seat 3 is screw-mounted on the upper part of limit peg column 4 through the limit screw hole, in order to facilitate the sliding guide of limit peg column 4, the side of installation support 2 is provided with peg guide slot, limit peg column 4 is slidingly installed on the inner side of the peg guide slot, in order to improve the service life of the equipment, protective pressure pad 11 is fixedly installed on the lower part of limit peg column 4.

[0027] Figure 5 ​​​As shown, the edge side of the mounting support 2 is provided with a tooth groove seat 8, the tooth groove seat 8 is provided in pairs, and the two groups of tooth groove seats 8 are fixedly arranged on both sides of the pressing block guide groove. In order to realize the locking and limiting of the limiting bolt column 4, tooth fastening blocks 9 are arranged on both sides of the limiting bolt column 4. One side of the tooth fastening block 9 is fixedly connected with the end of the limiting bolt column 4, and the other side of the tooth fastening block 9 is movably sleeved on the end of the limiting bolt column 4. The tooth grooves of the two groups of tooth fastening blocks 9 are respectively matched and clamped with the tooth grooves in the two groups of tooth groove seats 8. The limiting bolt column 4 is adjustably mounted on the middle part of the tooth groove seat 8. When the stroke is stopped, the limiting pressing block 7 is in contact with the limiting bolt column 4. During work, the downstroke distance of the rotary limiting ring seat 3 can be limited by adjusting the supporting height of the limiting bolt column 4 and using the contact limiting. The downstroke distance of the rotary limiting ring seat 3 corresponds to the rotation stroke of the driving shaft column 6, so that the rotation stroke of the actuator can be accurately limited. The structure is simple and reliable, and the use cost of the actuator can be effectively reduced without the cooperation of precise sensing and driving equipment. By adjusting the working position of the limiting bolt column 4, the device can be adjusted and set for different rotation strokes to meet the use requirements of different working scenes, thereby greatly improving the use flexibility of the device. The end of the limiting bolt column 4 is provided with a fastening nut 10 which is threadedly connected with the end of the limiting bolt column 4 and tightly abuts with the tooth fastening block 9 on the movable side, thereby realizing the pressing and limiting of the adjusted limiting bolt column 4. In order to improve the adjustment accuracy of the stroke, a stroke scale line is arranged on the upper part of the tooth groove seat 8.

[0028] The working principle or structural principle is that during installation, the rotary limiting ring seat 3 is kept above the stop position, the device is installed on the driving end of the control equipment by using the mounting support 2, the driving shaft column 6 is connected and installed with the control shaft end of the equipment, then the position of the limiting bolt column 4 is adjusted according to the reference scale on the upper part of the tooth groove seat 8 corresponding to the preset parameters of the equipment. During adjustment, the fastening nut 10 on the end side of the limiting bolt column 4 is loosened, then the tooth fastening block 9 on the edge side is clamped and connected with the tooth groove at the corresponding scale, after completion, the fastening nut 10 is tightened to complete the adjustment operation, then the actuator is debugged and calibrated by using a switch, the limiting position of the limiting bolt column 4 is adjusted by observing the working state of the driven equipment, and the working debugging of the equipment is completed. During work, the driving shaft column 6 is rotated by the hydraulic motor 1 under the driving of the external hydraulic source, the work time in the stroke is controlled, and when the stroke start and stop positions are reached, the contact limiting of the rotary limiting ring seat 3 can avoid the stroke error caused by external driving variables.

[0029] In summary, the actuator adopts a mechanical rotation stroke limiting structure, the hydraulic motor 1 is installed and supported by the installation support 2, a limiting bolt column 4 is arranged in the middle of the installation support 2, the limiting bolt column 4 is fitted and installed in position with the toothed groove seat 8 on the side of the installation support 2 through the fastening nut 10, and the rotation limiting ring seat 3 is threadedly installed on the upper part of the drive shaft column 6 of the hydraulic motor 1, the downward distance of the rotation limiting ring seat 3 can be limited by adjusting the supporting height of the limiting bolt column 4 through abutting limiting during work, the downward displacement of the rotation limiting ring seat 3 corresponds to the rotation stroke of the drive shaft column 6, the accurate limitation of the rotation stroke of the actuator can be realized, the structure is simple and reliable, the use cost of the actuator can be effectively reduced without the cooperation of precise sensing and driving equipment, and by adjusting the working position of the limiting bolt column 4, the device can be adjusted and set for different rotation strokes to meet the use requirements of different working scenes, and the use flexibility of the device is greatly improved.

[0030] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combinations or combinations are not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. A hydraulic multi-rotation actuator comprising a hydraulic motor (1), a mounting support (2), a rotation limiting ring seat (3) and a limiting bolt column (4), characterized in that: The hydraulic motor (1) is supported and installed on the upper part of the mounting support (2), the rotating shaft end of the hydraulic motor (1) is provided with a driving shaft column (6), the rotary limiting ring seat (3) is threadedly installed on the upper part of the driving shaft column (6); The side of the mounting support (2) is provided with a tooth groove seat (8), the limiting bolt column (4) is adjustably installed on the middle part of the tooth groove seat (8), the rotary limiting ring seat (3) is movably embedded and installed on the middle part of the mounting support (2), the side of the rotary limiting ring seat (3) is provided with a limiting pressing block (7), when the travel stop is reached, the limiting pressing block (7) is in abutting contact with the limiting bolt column (4).

2. A hydraulic multi-turn actuator according to claim 1, characterized in that: The lower part of the hydraulic motor (1) is provided with a connecting end seat (5), the upper part of the mounting support (2) is fixedly connected with the connecting end seat (5) through bolts, and the lower part of the mounting support (2) is provided with a mounting base (12).

3. A hydraulic multi-turn actuator as claimed in claim 2, characterized in that: The driving shaft column (6) is fixedly installed on the rotating shaft end of the hydraulic motor (1), and the bottom end of the driving shaft column (6) is provided with a driving groove hole.

4. A hydraulic multi-turn actuator as claimed in claim 3, characterized in that: The outer circumferential side of the driving shaft column (6) is provided with a driving thread, the middle part of the rotary limiting ring seat (3) is provided with a driving screw hole, the rotary limiting ring seat (3) is threadedly installed on the upper part of the driving shaft column (6) through the driving screw hole, and the middle part of the mounting support (2) is provided with a guide groove hole.

5. A hydraulic multi-turn actuator as claimed in claim 4, characterized in that: The limiting pressing block (7) is fixedly installed on the side of the rotary limiting ring seat (3) through bolts, the side of the mounting support (2) is provided with a pressing block guide groove, the limiting pressing block (7) is slidably installed in the inside of the pressing block guide groove, and the lower part of the limiting pressing block (7) is fixedly installed with a protective pressing pad (11).

6. A hydraulic multi-turn actuator as claimed in claim 5, characterized in that: The tooth groove seats (8) are arranged in pairs, two groups of tooth groove seats (8) are respectively fixedly arranged on the two sides of the pressing block guide groove, the two sides of the limiting bolt column (4) are provided with tooth fastening blocks (9), one side of the tooth fastening block (9) is fixedly connected with the end part of the limiting bolt column (4), the other side of the tooth fastening block (9) is movably sleeved on the end part of the limiting bolt column (4), and the tooth grooves of the two groups of tooth fastening blocks (9) are respectively in position embedded and clamped with the tooth grooves in the two groups of tooth groove seats (8).

7. A hydraulic multi-turn actuator as claimed in claim 6, characterized in that: The end part of the limiting bolt column (4) is provided with a fastening nut (10), the fastening nut (10) is threadedly connected with the end part of the limiting bolt column (4) and is in abutting contact with the tooth fastening block (9) on the movable side.

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