Stroke-adjustable electro-hydraulic actuating mechanism

Abstract

The utility model relates to the technical field of electro-hydraulic actuating mechanisms, and discloses a stroke-adjustable electro-hydraulic actuating mechanism which comprises an actuating mechanism body and a fine adjustment assembly, a connecting seat is arranged on the lower surface of the actuating mechanism body, a base is arranged at the lower end of the connecting seat, and a first connecting block and a second connecting block are arranged on the outer surface of the connecting seat. A first mounting groove is formed in the lower surface of the first connecting block, the four second connecting blocks are fixed and evenly distributed, and the fine adjustment assembly comprises a fixing sleeve, a movable rod, a fastening rotary knob, a third connecting block, a bolt, a fixing block, a first spring, a sliding plate and a limiting column. Through cooperative use of the fixed block, the first spring, the sliding plate and the limiting column, fixed installation of the movable rod and the connecting base can be canceled, fixed installation of the fixed sleeve and the base can be canceled through cooperative use of the third connecting block and the bolt, and then the damaged movable rod or the damaged fixed sleeve can be replaced; the material loss is reduced, and a good environment-friendly effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electro-hydraulic actuators, in particular to a stroke-adjustable electro-hydraulic actuator. Background Art

[0002] Electro-hydraulic actuator, an electro-hydraulic actuator is an actuator that converts a standard input signal into a 0-degree to 90-degree angular displacement output torque or linear displacement output force corresponding to the input signal through electro-hydraulic conversion and hydraulic amplification.

[0003] The utility model patent application document with publication number "CN215806124U" discloses an adjustable electro-hydraulic actuator, which is mainly composed of a base, a sliding seat, a driving mechanism, an actuator body and a fine-tuning component. This technical solution can be adjusted according to actual needs, including the adjustment of the horizontal position and the adjustment of the angle of the actuator body, which improves the application scope of the electro-hydraulic actuator and has the advantages of reasonable structure and convenient adjustment.

[0004] The adjustable electro-hydraulic actuator disclosed in the above document has the following defects: the adjustable electro-hydraulic actuator is adjusted in the horizontal direction by a fine-tuning assembly. However, after long-term use, the movable rod or the fixed sleeve may be deformed by the pressure applied by the electro-hydraulic actuator and lose its effect. The above document cannot replace a single movable rod or fixed sleeve, which results in a waste of materials.

[0005] It can be seen from this that the existing adjustable electro-hydraulic actuator does not have a structure for replacing the fine-tuning component, and it is necessary to improve the existing shortcomings and provide an electro-hydraulic actuator with adjustable stroke. Utility Model Content

[0006] The purpose of the utility model is to provide a stroke-adjustable electro-hydraulic actuator to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses an electro-hydraulic actuator with adjustable stroke, comprising an actuator body and a fine-tuning assembly, wherein a connecting seat is arranged on the lower surface of the actuator body, a base is arranged on the lower end of the connecting seat, a first connecting block and a second connecting block are arranged on the outer surface of the connecting seat, a first mounting groove is arranged on the lower surface of the first connecting block, four second connecting blocks are fixed and evenly distributed, the fine-tuning assembly comprises a fixed sleeve, a movable rod, a tightening knob, a third connecting block, a bolt, a fixed block, a first spring, a slide plate and a limiting column, a third connecting block is arranged on one end of the fixed sleeve, and the third connecting block is arranged on the lower surface of the first connecting block. The connecting block is installed on the upper surface of the base by bolts, a movable rod is installed inside the fixed sleeve, one end of the tightening knob extends to the inside of the fixed sleeve, a fixed block is installed at one end of the movable rod, a cavity is opened inside the fixed block, a slide is slidably connected inside the cavity, one end of the first spring is installed on the inner surface of the cavity, the other end of the first spring is installed on the outer surface of the slide, a limiting column is provided at one end of the slide away from the first spring, the fixed block is installed inside the first mounting groove, and the limiting column passes through the fixed block and the first connecting block and extends outward.

[0009] Furthermore, a first support block is provided on the upper surface of the base, the first support blocks are fixed in two and symmetrically arranged, a first pin is installed between the two first support blocks, the outer surface of the first pin is rotatably connected to the second support block, and a connecting plate is installed on the upper surface of the second support block.

[0010] Furthermore, a second mounting groove is formed on the lower surface of the connecting seat, and a connecting plate is mounted inside the second mounting groove.

[0011] Furthermore, the outer surface of the connecting plate is provided with anti-slip stripes.

[0012] Furthermore, a second pin rod is installed between every two adjacent second connecting blocks, and the outer surface of the second pin rod is rotatably connected to a connecting rod. Rectangular blocks are provided at both ends of the base, and a sliding groove is provided on the upper surface of the rectangular block. A sliding block is provided inside the sliding groove, and the upper surface of the sliding block is rotatably connected to the connecting rod.

[0013] Furthermore, a guide rod is provided inside the slide groove, a second spring is sleeved on the outer surface of the guide rod, the slider is slidably connected to the outer surface of the guide rod, one end of the second spring is installed on the inner surface of the slide groove, and the other end of the second spring is installed on the outer surface of the slider.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model can cancel the fixed installation of the movable rod and the connecting seat by using the fixed block, the first spring, the slide plate and the limit column. The fixed installation of the fixed sleeve and the base can be canceled by using the third connecting block and the bolt. Then, the damaged movable rod or fixed sleeve can be replaced, which reduces the loss of materials and achieves a better environmental protection effect.

[0016] (2) The utility model can provide a certain support effect on the tilted actuator body through the coordinated use of the connecting rod, the slider and the second spring, thereby reducing the pressure of the actuator body on the fine-tuning component and extending the service life of the fine-tuning component.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connecting seat, fine-tuning assembly and base of the utility model;

[0021] Figure 3 This is a cross-sectional view of the connecting seat, fine-tuning assembly and base structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the fine-tuning component and base structure of the utility model;

[0023] Figure 5 This is a cross-sectional view of the fine-tuning component structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the connecting seat of the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. actuator body; 101. connecting seat; 102. first connecting block; 103. second connecting block; 104. first mounting slot; 105. second mounting slot; 106. second pin rod; 2. fine-tuning assembly; 201. fixing sleeve; 202. movable rod; 203. tightening knob; 204. third connecting block; 205. bolt; 206. fixing block; 207. first spring; 208. slide plate; 209. limiting column; 3. base; 301. first supporting block; 302. first pin rod; 303. second supporting block; 304. connecting plate; 305. rectangular block; 306. slide slot; 307. guide rod; 4. connecting rod; 5. slider; 6. second spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Figure 6 As shown, the utility model is a stroke-adjustable electro-hydraulic actuator, comprising an actuator body 1 and a fine-tuning assembly 2, a connecting seat 101 is provided on the lower surface of the actuator body 1, a base 3 is provided on the lower end of the connecting seat 101, a first connecting block 102 and a second connecting block 103 are provided on the outer surface of the connecting seat 101, a first mounting groove 104 is provided on the lower surface of the first connecting block 102, four second connecting blocks 103 are fixed and evenly distributed, the fine-tuning assembly 2 comprises a fixed sleeve 201, a movable rod 202, a tightening knob 203, a third connecting block 204, a bolt 205, a fixed block 206, a first spring 207, a slide plate 208 and a limiting column 209, one end of the fixed sleeve 201 is provided with a third connecting block 204, The third connecting block 204 is installed on the upper surface of the base 3 by bolts 205, and a movable rod 202 is installed inside the fixed sleeve 201, one end of the tightening knob 203 extends to the inside of the fixed sleeve 201, and a fixed block 206 is installed at one end of the movable rod 202. A cavity is opened inside the fixed block 206, and a slide plate 208 is slidably connected inside the cavity. One end of the first spring 207 is installed on the inner surface of the cavity, and the other end of the first spring 207 is installed on the outer surface of the slide plate 208. A limiting column 209 is provided at one end of the slide plate 208 away from the first spring 207, and the fixed block 206 is installed inside the first mounting groove 104, and the limiting column 209 passes through the fixed block 206 and the first connecting block 102 and extends outward.

[0029] A first support block 301 is provided on the upper surface of the base 3. The first support blocks 301 are fixed in two and symmetrically arranged. A first pin rod 302 is installed between the two first support blocks 301. The outer surface of the first pin rod 302 is rotatably connected to the second support block 303. A connecting plate 304 is installed on the upper surface of the second support block 303.

[0030] A second mounting groove 105 is formed on the lower surface of the connecting base 101 , and a connecting plate 304 is mounted in the second mounting groove 105 .

[0031] The outer surface of the connecting plate 304 is provided with anti-slip stripes.

[0032] A second pin rod 106 is installed between every two adjacent second connecting blocks 103, and the outer surface of the second pin rod 106 is rotatably connected to the connecting rod 4. Rectangular blocks 305 are provided at both ends of the base 3, and a slide groove 306 is opened on the upper surface of the rectangular block 305. A slider 5 is provided inside the slide groove 306, and the upper surface of the slider 5 is rotatably connected to the connecting rod 4.

[0033] A guide rod 307 is provided inside the slide groove 306, and a second spring 6 is sleeved on the outer surface of the guide rod 307. The slider 5 is slidably connected to the outer surface of the guide rod 307, one end of the second spring 6 is installed on the inner surface of the slide groove 306, and the other end of the second spring 6 is installed on the outer surface of the slider 5.

[0034] When in use, by turning the tightening knob 203 counterclockwise, the tightening knob 203 cancels the fixation of the movable rod 202, and then the length of the movable rod 202 can be manually adjusted, thereby tilting the position of the actuator body 1. When the actuator body 1 is tilted, it will push the connecting rod 4 to move outward. During the movement of the connecting rod 4, the slider 5 will be pushed to slide in the slide groove 306. At the same time, the second spring 6 gradually contracts. Through the coordinated use of the connecting rod 4, the slider 5 and the second spring 6, a certain supporting effect can be achieved on the tilted actuator body 1, reducing the pressure of the actuator body 1 on the fine-tuning component 2, and extending the service life of the fine-tuning component 2. When the position of the actuator body 1 is adjusted, the tightening knob 203 is turned clockwise to fix the movable rod 202. When the movable rod 202 of a certain group is damaged When the movable rod 202 is fixed to the first mounting groove 104, the movable rod 202 is pulled downward to release the fixing block 206 from the first mounting groove 104, so that the movable rod 202 cancels the support for the actuator body 1. Then, the wrench is taken out and the corresponding bolt 205 is turned counterclockwise. Then, the bolt 205 is removed to cancel the fixed installation of the third connecting block 204 and the base 3. At this time, the corresponding fixing sleeve 201 can be taken out, so that the movable rod 202 installed inside can be replaced conveniently.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stroke-adjustable electro-hydraulic actuator, comprising an actuator body (1) and a fine-tuning assembly (2), characterized in that: A connecting seat (101) is provided on the lower surface of the actuator body (1), a base (3) is provided at the lower end of the connecting seat (101), a first connecting block (102) and a second connecting block (103) are provided on the outer surface of the connecting seat (101), a first mounting groove (104) is provided on the lower surface of the first connecting block (102), and four second connecting blocks (103) are fixed and evenly distributed; The fine-tuning assembly (2) comprises a fixed sleeve (201), a movable rod (202), a tightening knob (203), a third connecting block (204), a bolt (205), a fixed block (206), a first spring (207), a slide plate (208) and a limiting column (209); one end of the fixed sleeve (201) is provided with a third connecting block (204); the third connecting block (204) is mounted on the upper surface of the base (3) via a bolt (205); the movable rod (202) is mounted inside the fixed sleeve (201); One end of the tightening knob (203) extends to the interior of the fixed sleeve (201); a fixing block (206) is installed at one end of the movable rod (202); a cavity is provided inside the fixing block (206); a slide plate (208) is slidably connected inside the cavity; one end of the first spring (207) is installed on the inner surface of the cavity; the other end of the first spring (207) is installed on the outer surface of the slide plate (208); and a limiting column (209) is provided at one end of the slide plate (208) away from the first spring (207); The fixing block (206) is installed inside the first installation groove (104), and the limiting column (209) penetrates the fixing block (206) and the first connecting block (102) and extends outward.

2. The stroke-adjustable electro-hydraulic actuator according to claim 1, characterized in that: A first support block (301) is provided on the upper surface of the base (3); the first support blocks (301) are fixed in two and symmetrically arranged; a first pin rod (302) is installed between the two first support blocks (301); a second support block (303) is rotatably connected to the outer surface of the first pin rod (302); and a connecting plate (304) is installed on the upper surface of the second support block (303).

3. The stroke-adjustable electro-hydraulic actuator according to claim 1, characterized in that: A second installation groove (105) is provided on the lower surface of the connection seat (101), and a connection plate (304) is mounted in the interior of the second installation groove (105).

4. The stroke-adjustable electro-hydraulic actuator according to claim 2, characterized in that: The outer surface of the connecting plate (304) is provided with anti-slip stripes.

5. The stroke-adjustable electro-hydraulic actuator according to claim 1, characterized in that: A second pin rod (106) is installed between every two adjacent second connecting blocks (103); the outer surface of the second pin rod (106) is rotatably connected to a connecting rod (4); rectangular blocks (305) are provided at both ends of the base (3); a slide groove (306) is provided on the upper surface of the rectangular block (305); a slider (5) is provided inside the slide groove (306); and the upper surface of the slider (5) is rotatably connected to the connecting rod (4).

6. The stroke-adjustable electro-hydraulic actuator according to claim 5, characterized in that: A guide rod (307) is provided inside the slide groove (306), a second spring (6) is sleeved on the outer surface of the guide rod (307), the slider (5) is slidably connected to the outer surface of the guide rod (307), one end of the second spring (6) is mounted on the inner surface of the slide groove (306), and the other end of the second spring (6) is mounted on the outer surface of the slider (5).

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