Hydraulic shifting fork type actuating mechanism of control valve

Abstract

The invention belongs to the technical field of hydraulic actuators, and discloses a control valve hydraulic drive shifting fork type actuating mechanism which comprises an assembling sleeve, a hydraulic cylinder, a sealing sleeve and an auxiliary barrel, a shifting fork assembly is rotationally installed in the assembling sleeve, and a middle rod is slidably connected into the assembling sleeve in a sleeved mode. By means of matched communication of the elastic storage assembly and the middle rod and matched communication of the middle rod and the guide block, when transverse movement and opening and closing control over the valve are conducted, the compression operation of the elastic storage assembly is achieved along with movement of the middle rod; hydraulic oil stored inside is jetted to the contact face of the shifting fork and the guide block through the middle rod and the guide block, small-amount rapid jetting treatment is achieved every time in the action process, lubricating treatment of the contact face is achieved, negative influences caused by frictional wear are greatly reduced, the stability of swing control is improved, and the stability and smoothness of valve control are improved; and the automatic lubricating operation is simple, the effect is good, the labor amount is reduced, and the using effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic actuators, and in particular relates to a hydraulic scotch fork type actuator for a control valve. Background Art

[0002] The control valve hydraulic scotch yoke actuator is an actuator used to control valves. It is usually used in hydraulic systems, especially in industrial automation to accurately control fluid flow, pressure and other parameters.

[0003] The hydraulic yoke actuator of the control valve in the prior art, during use, as the intermediate rod drives the guide block to push in the yoke, the yoke is swung, and the intermediate shaft controls the connected valve to rotate, thereby controlling the opening and closing of the valve body. However, after long-term use, the friction between the yoke and the guide block has a greater impact, and the applied lubricating oil is gradually exhausted, causing the yoke to wear due to friction after long-term use, resulting in poor movement or even jamming, affecting the switching performance of the valve. The current lubrication operation is inconvenient, and it is necessary to open the assembly set and apply it manually. The timed application operation is troublesome, and the actual lubrication application effect is poor, and it is inconvenient to penetrate into the contact surface, resulting in poor use effect. Summary of the invention

[0004] The object of the present invention is to provide a control valve hydraulic scotch yoke actuator to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a control valve hydraulic fork actuator, comprising an assembly sleeve, a hydraulic cylinder, a sealing sleeve and an auxiliary cylinder, wherein a fork assembly is rotatably installed inside the assembly sleeve, an intermediate rod is slidably sleeved inside the assembly sleeve, and the two ends of the intermediate rod are movably sleeved in the hydraulic cylinder and the auxiliary cylinder respectively, a compression assembly is elastically connected in the hydraulic cylinder, and the compression assembly is fixedly connected to the intermediate rod, and guide blocks are fixedly provided at the upper and lower ends of the intermediate rod, and the guide blocks are movably sleeved in the fork assembly, and an elastic storage assembly is fixedly sleeved on the outer surface of the intermediate rod, and the elastic storage assembly intermittently sprays lubricating oil into the fork assembly through the intermediate rod and the guide block.

[0006] Preferably, the sealing sleeve is fixedly connected between the assembly sleeve and the hydraulic cylinder, and is provided with a sealing ring inside and sleeved on the outer surface of the intermediate rod, and the auxiliary tube is fixedly connected to the other side of the assembly sleeve.

[0007] Preferably, the fork assembly includes a rotating shaft and a fork, the fork is distributed up and down on the outer surface of the rotating shaft, and the fork is fixedly sleeved on the outside of the rotating shaft, the upper end of the rotating shaft is rotatably sleeved on the top of the assembly sleeve through a bearing, the lower end of the rotating shaft passes through the assembly sleeve, and the front side of the fork is provided with an inner groove.

[0008] Preferably, the intermediate rod comprises a rod body, a communicating cavity and a communicating port 1, wherein the communicating cavity is provided inside the rod body, and the communicating port 1 is provided on the outer surface of the rod body and communicates with the communicating cavity.

[0009] Preferably, the guide block includes a column, an annular groove, a middle opening, an elastic gasket, a second connecting opening and an intermediate cavity, the annular groove is opened on the outer surface of the column, the intermediate cavity is opened inside the column, the column is fixed on the outer surface of the rod body, the intermediate opening is opened inside the column, the two ends of the intermediate opening are respectively connected with the intermediate cavity and the annular groove, the intermediate cavity is connected with the connecting cavity, the elastic gasket is fixedly nested in the annular groove, the second connecting opening is opened in the elastic gasket, and is aligned and connected with the intermediate opening.

[0010] Preferably, the compression assembly includes a movable plug, a spring and a sealing ring, one end of the spring is fixed in the hydraulic cylinder, and the other end is fixedly connected to the movable plug, the sealing ring is fixedly nested on the outer surface of the movable plug, the movable plug is movably sleeved in the hydraulic cylinder and fixedly connected to the intermediate rod, and an oil inlet pipe is fixedly provided on the top of the hydraulic cylinder.

[0011] Preferably, the elastic storage assembly includes a fixed sleeve, a fixed ring, an elastic storage ring and a conducting cavity, the fixed sleeve and the fixed ring are fixedly sleeved on the outer surface of the rod body, the conducting cavity is opened inside the fixed sleeve, the conducting cavity is connected with the connecting port, the elastic storage ring is fixedly sleeved in the fixed sleeve and fixedly connected with the fixed ring, the elastic storage ring is movably sleeved on the outside of the intermediate rod, the interior of the elastic storage ring is connected with the conducting cavity, and the interior of the elastic storage ring is filled with lubricating oil.

[0012] Preferably, a connecting assembly is fixedly provided on the side of the oil inlet pipe, a filter cover is sleeved inside the oil inlet pipe, a filter hole is provided at the bottom of the filter cover, a positioning ring is fixedly provided inside the oil inlet pipe, the positioning ring is located on the upper and lower sides of the filter cover, and the connecting assembly controls the filter cover to enter and exit along the outer side of the oil inlet pipe.

[0013] Preferably, the connecting assembly includes a fixed frame, a connecting rod, a sealing block, a mounting plate, a heating pipe and a side groove, the fixed frame is fixedly connected to the outer side surface of the oil inlet pipe, the connecting rod is movably sleeved in the fixed frame, and one end is fixedly sleeved in the filter cover, the sealing block is fixedly sleeved on the outer surface of the connecting rod and movably sleeved in the fixed frame, the mounting plate is fixedly sleeved on the outer end of the connecting rod and is magnetically attracted to the end of the fixed frame, an installation cavity is opened inside the connecting rod, the heating pipe is fixedly connected in the installation cavity, the side groove is opened around the outer surface of the connecting rod and is connected to the installation cavity, and the heating pipe is located in the filter cover.

[0014] The beneficial effects of the present invention are as follows: (1) The present invention utilizes the coordinated connection between the elastic storage component and the intermediate rod, and the coordinated connection between the intermediate rod and the guide block. When performing lateral movement and valve opening and closing control, the elastic storage component is compressed as the intermediate rod moves, and the hydraulic oil stored inside is sprayed onto the contact surface of the shift fork and the guide block through the intermediate rod and the guide block. During the action, a small amount of rapid spraying is performed each time to achieve lubrication of the contact surface, which greatly reduces the negative impact of friction and wear, improves the stability of swing control, and improves the stability and smoothness of valve control. The automatic lubrication operation is simple and effective, reduces labor, and has a good use effect.

[0015] (2) The present invention utilizes the cooperation of the filter cover and the connecting assembly to achieve filtering during the process of hydraulic oil being input into the hydraulic cylinder, thereby preventing impurities from entering the hydraulic cylinder and causing problems such as cylinder wall wear. In addition, by cooperating with the movement control of the connecting assembly, the filter cover can be easily removed and separated from the oil inlet pipe, thereby performing rapid self-cleaning and separation, avoiding clogging of the filter cover, and maintaining a long-term filtering effect.

[0016] (3) The present invention utilizes the heating tube in the connecting assembly in conjunction with the arrangement of the side grooves to guide the oil to fully fill and contact the heating tube during the filtering and inputting process of the oil, thereby achieving heating treatment of the oil. In view of the cold winter environment, the present invention ensures that during the inputting process of the hydraulic oil, composite, fast and effective auxiliary heating is achieved, thereby avoiding overheating of the oil, reducing the viscosity of the oil, maintaining stable fluidity, ensuring the stability of the hydraulic control, and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention; Figure 3 It is a schematic diagram of assembling the fork assembly and the intermediate rod of the present invention; Figure 4 It is a schematic diagram of the connection between the intermediate rod and the compression assembly of the present invention; Figure 5 It is a cross-sectional schematic diagram of the intermediate rod and the elastic storage assembly of the present invention; Figure 6 is a schematic diagram of a fork assembly of the present invention; Figure 7 It is an exploded schematic diagram of the guide block of the present invention; Figure 8 is a cross-sectional schematic diagram of a guide block of the present invention; Fig. 9 It is a cross-sectional schematic diagram of the connection assembly and the oil inlet pipe of the present invention; Fig.10 It is a schematic diagram of the connection between the connecting rod and the mounting plate of the present invention.

[0018] In the figure: 1. assembly set; 2. hydraulic cylinder; 3. sealing sleeve; 4. auxiliary cylinder; 5. fork assembly; 51. rotating shaft; 52. fork; 6. intermediate rod; 61. rod body; 62. connecting cavity; 63. connecting port one; 7. compression assembly; 71. movable plug; 72. spring; 73. sealing ring; 8. elastic storage assembly; 81. fixing sleeve; 82. fixing ring; 83. elastic storage ring; 84. conducting cavity; 9. guide block; 91. column; 92. ring groove; 93. intermediate port; 94. elastic gasket; 95. connecting port two; 96. intermediate cavity; 10. oil inlet pipe; 11. connecting assembly; 111. fixing frame; 112. connecting rod; 113. sealing block; 114. mounting plate; 115. heating pipe; 116. side groove; 12. positioning ring; 13. filter cover; 14. filter hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 10 As shown, an embodiment of the present invention provides a control valve hydraulic scotch fork actuator, including an assembly sleeve 1, a hydraulic cylinder 2, a sealing sleeve 3 and an auxiliary cylinder 4, a scotch fork assembly 5 is rotatably installed inside the assembly sleeve 1, an intermediate rod 6 is slidably sleeved inside the assembly sleeve 1, two ends of the intermediate rod 6 are movably sleeved in the hydraulic cylinder 2 and the auxiliary cylinder 4 respectively, a compression assembly 7 is elastically connected in the hydraulic cylinder 2, the compression assembly 7 is fixedly connected to the intermediate rod 6, guide blocks 9 are fixedly provided at both upper and lower ends of the intermediate rod 6, the guide block 9 is movably sleeved in the scotch fork assembly 5, an elastic storage assembly 8 is fixedly sleeved on the outer surface of the intermediate rod 6, and the elastic storage assembly 8 intermittently sprays lubricating oil into the scotch fork assembly 5 through the intermediate rod 6 and the guide block 9.

[0021] Embodiment 1: When in use, with the external oil supply mechanism, the hydraulic oil is pumped into the hydraulic cylinder 2 through the oil inlet pipe 10, and the internal hydraulic pressure is increased, and the compression assembly 7 is pushed to move. While compressing the spring 72, the intermediate rod 6 is driven to move laterally, so that the guide block 9 on the intermediate rod 6 moves laterally in the fork assembly 5, pushing the rotating shaft 51 in the fork 52 to rotate, and during the movement of the intermediate rod 6, the elastic storage assembly 8 is driven to move laterally. During the movement, the elastic storage assembly 8 contacts and squeezes the inner wall of the assembly sleeve 1, compressing the internal lubricating oil, and the elastic storage ring 83 elastically compresses and inputs the internal lubricating oil into the guide block 9 through the conducting cavity 84, the connecting port 1 63, and the connecting cavity 62, and is ejected through the intermediate cavity 96, the intermediate port 93 and the connecting port 2 95, and is ejected into the inner groove of the fork 52, lubricating the contact surface of the fork 52 and the guide block 9, completing automatic lubrication.

[0022] Firstly, by utilizing the coordinated connection between the elastic storage component 8 and the intermediate rod 6, and the coordinated connection between the intermediate rod 6 and the guide block 9, during lateral movement and valve opening and closing control, as the intermediate rod 6 moves, the elastic storage component 8 is compressed, and the hydraulic oil stored inside is sprayed onto the contact surface between the fork 52 and the guide block 9 through the intermediate rod 6 and the guide block 9, and a small amount of rapid spraying is performed each time during the action process to achieve lubrication of the contact surface, which greatly reduces the negative impact of friction and wear, improves the stability of swing control, and improves the stability and smoothness of valve control. In addition, the automatic lubrication operation is simple, the effect is good, the workload is reduced, and the use effect is good.

[0023] Embodiment 2: As the hydraulic oil flows in and out of the oil inlet pipe 10, the solid particles in the hydraulic oil are filtered into the filter cover 13. When separation is required, the bolts on the mounting plate 114 are unscrewed, and the connecting rod 112 and the sealing block 113 are pulled outward to drive the filter cover 13 to be removed from the oil inlet pipe 10 and the fixing frame 111. The removal is completed and the cleaning can be performed. When used in a winter environment, the heating tube 115 in the connecting rod 112 is started to increase the temperature of the oil input into the oil inlet pipe 10 and restore the viscosity.

[0024] Firstly, by utilizing the cooperation of the filter cover 13 and the connecting component 11, filtering is performed during the process of the hydraulic oil being input into the hydraulic cylinder 2, thereby preventing impurities from entering the hydraulic cylinder and causing problems such as wear of the cylinder wall. In addition, by cooperating with the movement control of the connecting component 11, the filter cover 13 can be easily removed and separated from the oil inlet pipe 10, thereby performing rapid self-cleaning and separation, avoiding blockage of the filter cover 13, and maintaining a long-term filtering effect.

[0025] In addition, by utilizing the heating pipe 115 in the connecting component 11 and cooperating with the arrangement of the side groove 116, during the filtering and input process of the oil, the oil is guided to fully fill and contact the heating pipe 115, thereby realizing heating treatment of the oil. In view of the cold winter environment, during the hydraulic oil input process, composite, fast and effective auxiliary heating is ensured to avoid overheating of the oil, reduce the viscosity of the oil, maintain stable fluidity, ensure the stability of hydraulic control, and achieve good use effect.

[0026] The sealing sleeve 3 is fixedly connected between the assembly sleeve 1 and the hydraulic cylinder 2 , and is provided with a sealing ring inside, and is sleeved on the outer surface of the intermediate rod 6 , and the auxiliary tube 4 is fixedly connected to the other side of the assembly sleeve 1 .

[0027] By sealing the intermediate rod 6 with the sealing sleeve 3, it is ensured that there is no leakage during the dynamic movement.

[0028] Among them, the fork assembly 5 includes a rotating shaft 51 and a fork 52. The fork 52 is distributed up and down on the outer surface of the rotating shaft 51, and the fork is fixedly sleeved on the outer side of the rotating shaft 51. The upper end of the rotating shaft 51 is rotatably sleeved on the top of the assembly sleeve 1 through a bearing, and the lower end of the rotating shaft 51 passes through the assembly sleeve 1. The front side of the fork 52 is provided with an inner groove.

[0029] The swing of the fork assembly 5 realizes the rotation of the rotating shaft 51 , and the valve connected at the bottom is cooperated to realize valve control, and the inner groove adapts to the movement of the guide block 9 to realize the linkage of the fork 52 .

[0030] The middle rod 6 includes a rod body 61 , a connecting cavity 62 and a connecting port 1 63 . The connecting cavity 62 is provided inside the rod body 61 , and the connecting port 1 63 is provided on the outer surface of the rod body 61 and is connected to the connecting cavity 62 .

[0031] By utilizing the intermediate rod 6 to provide a driving force, the lateral movement control of the guide block 9 is completed, and the connecting port 1 63 and the connecting chamber 62 are used to guide the flow of lubricating oil.

[0032] Among them, the guide block 9 includes a column 91, an annular groove 92, an intermediate opening 93, an elastic gasket 94, a second connecting opening 95 and an intermediate cavity 96. The annular groove 92 is opened on the outer surface of the column 91, and the intermediate cavity 96 is opened inside the column 91. The column 91 is fixed on the outer surface of the rod body 61, and the intermediate opening 93 is opened inside the column 91. The two ends of the intermediate opening 93 are respectively connected with the intermediate cavity 96 and the annular groove 92, and the intermediate cavity 96 is connected with the connecting cavity 62. The elastic gasket 94 is fixedly nested in the annular groove 92, and the second connecting opening 95 is opened in the elastic gasket 94 and is aligned and connected with the intermediate opening 93.

[0033] The guide block 9 is used to guide the swing of the shift fork 52, and the middle port 93, the middle cavity 96 and the connecting port 2 95 are used to connect the lubricating oil and spray the lubricating oil. The elastic gasket 94 enables the corresponding connecting port 2 95 to be self-sealed in a gap state, and open under the thrust of the lubricating oil to avoid leakage.

[0034] Among them, the compression assembly 7 includes a movable plug 71, a spring 72 and a sealing ring 73. One end of the spring 72 is fixed in the hydraulic cylinder 2, and the other end is fixedly connected to the movable plug 71. The sealing ring 73 is fixedly nested on the outer surface of the movable plug 71. The movable plug 71 is movably sleeved in the hydraulic cylinder 2 and fixedly connected to the intermediate rod 6. An oil inlet pipe 10 is fixedly provided on the top of the hydraulic cylinder 2.

[0035] The compression assembly 7 is compressed when the hydraulic oil is input, thereby driving the intermediate rod 6 to move laterally.

[0036] Among them, the elastic storage component 8 includes a fixed sleeve 81, a fixed ring 82, an elastic storage ring 83 and a conducting cavity 84. The fixed sleeve 81 and the fixed ring 82 are fixedly sleeved on the outer surface of the rod body 61. The conducting cavity 84 is opened inside the fixed sleeve 81. The conducting cavity 84 is connected with the connecting port 63. The elastic storage ring 83 is fixedly sleeved in the fixed sleeve 81 and fixedly connected with the fixed ring 82. The elastic storage ring 83 is movably sleeved on the outside of the intermediate rod 6. The interior of the elastic storage ring 83 is connected with the conducting cavity 84. The interior of the elastic storage ring 83 is filled with lubricating oil.

[0037] The elastic storage component 8 realizes internal lubricating oil storage, and squeezes and sprays the internal lubricating oil out under pressure, and elastically deforms after the pressure is removed to suck back the residual oil. The top of the assembly sleeve is opened, and the sealing port set on the side of the fixed sleeve 81 is cooperated to realize the lubricating oil replenishment.

[0038] Among them, a connecting component 11 is fixedly provided on the side of the oil inlet pipe 10, a filter cover 13 is sleeved inside the oil inlet pipe 10, a filter hole 14 is provided at the bottom of the filter cover 13, and a positioning ring 12 is fixedly provided inside the oil inlet pipe 10. The positioning ring 12 is located on the upper and lower sides of the filter cover 13, and the connecting component 11 controls the filter cover 13 to enter and exit along the outer side of the oil inlet pipe 10.

[0039] The hydraulic oil is fed in by using the oil inlet pipe 10, the filter cover 13 performs filtering, and the connecting assembly 11 enables the filter cover 13 to be quickly removed and cleaned.

[0040] Among them, the connecting component 11 includes a fixed frame 111, a connecting rod 112, a sealing block 113, a mounting plate 114, a heating pipe 115 and a side groove 116. The fixed frame 111 is fixedly connected to the outer surface of the oil inlet pipe 10, the connecting rod 112 is movably sleeved in the fixed frame 111, and one end is fixedly sleeved in the filter cover 13, the sealing block 113 is fixedly sleeved on the outer surface of the connecting rod 112 and movably sleeved in the fixed frame 111, the mounting plate 114 is fixedly sleeved on the outer end of the connecting rod 112 and is magnetically attracted to the end of the fixed frame 111, an installation cavity is opened inside the connecting rod 112, the heating pipe 115 is fixedly connected in the installation cavity, the side groove 116 is opened around the outer surface of the connecting rod 112 and is connected to the installation cavity, and the heating pipe 115 is located in the filter cover 13.

[0041] By utilizing the connection assembly 11 to achieve quick processing of the filter cover 13 and cooperating with the heating treatment of the internal heating pipe 115, the oil can be heated in winter to maintain stable viscosity, and the mounting plate 114 is matched with an external bolt (not shown in the figure), passing through the mounting plate 114 and fixed to the outer end of the fixed frame 111.

[0042] The working principle and use process of the present invention are as follows: when in use, with the external oil supply mechanism, the hydraulic oil is pumped into the hydraulic cylinder 2 through the oil inlet pipe 10, and the internal hydraulic pressure is increased, and the compression assembly 7 is pushed to move. While compressing the spring 72, the intermediate rod 6 is driven to move laterally, so that the guide block 9 on the intermediate rod 6 moves laterally in the fork assembly 5, pushing the rotating shaft 51 in the fork 52 to rotate, and during the movement of the intermediate rod 6, the elastic storage assembly 8 is driven to move laterally. During the movement, the elastic storage assembly 8 contacts and squeezes the inner wall of the assembly sleeve 1, compressing the internal lubricating oil, and the elastic storage ring 83 elastically compresses and inputs the internal lubricating oil into the through-chamber 84, the connecting port 163, and the connecting chamber 62. The hydraulic oil is injected into the guide block 9, and is ejected through the middle cavity 96, the middle port 93 and the second connecting port 95, and is ejected into the inner groove of the shift fork 52, lubricating the contact surface of the shift fork 52 and the guide block 9, thereby completing automatic lubrication; as the hydraulic oil enters and exits the oil inlet pipe 10, the solid particles in the hydraulic oil are filtered into the filter cover 13. When separation is required, the bolts on the mounting plate 114 are unscrewed, and the connecting rod 112 and the sealing block 113 are pulled outward to drive the filter cover 13 to be removed from the oil inlet pipe 10 and the fixed frame 111, and the removal is completed for cleaning; and when used in a winter environment, the heating pipe 115 in the connecting rod 112 is started to increase the temperature input into the oil inlet pipe 10 and restore the viscosity.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control valve hydraulic scotch yoke actuator, comprising an assembly sleeve (1), a hydraulic cylinder (2), a sealing sleeve (3) and an auxiliary cylinder (4), characterized in that: A shift fork assembly (5) is rotatably mounted inside the assembly sleeve (1), an intermediate rod (6) is slidably sleeved inside the assembly sleeve (1), two ends of the intermediate rod (6) are movably sleeved in the hydraulic cylinder (2) and the auxiliary cylinder (4), respectively, a compression assembly (7) is elastically connected in the hydraulic cylinder (2), the compression assembly (7) is fixedly connected to the intermediate rod (6), upper and lower ends of the intermediate rod (6) are fixedly provided with guide blocks (9), the guide blocks (9) are movably sleeved in the shift fork assembly (5), an elastic storage assembly (8) is fixedly sleeved on the outer surface of the intermediate rod (6), and the elastic storage assembly (8) intermittently sprays lubricating oil into the shift fork assembly (5) through the intermediate rod (6) and the guide blocks (9).

2. A control valve hydraulic scotch fork actuator according to claim 1, characterized in that: The sealing sleeve (3) is fixedly connected between the assembly sleeve (1) and the hydraulic cylinder (2), and is provided with a sealing ring inside, and is sleeved on the outer surface of the intermediate rod (6). The auxiliary cylinder (4) is fixedly connected to the other side of the assembly sleeve (1).

3. A control valve hydraulic scotch fork actuator according to claim 2, characterized in that: The shift fork assembly (5) comprises a rotating shaft (51) and a shift fork (52), wherein the shift fork (52) is distributed up and down on the outer surface of the rotating shaft (51), and the shift fork is fixedly sleeved on the outer side of the rotating shaft (51), the upper end of the rotating shaft (51) is rotatably sleeved on the top of the assembly sleeve (1) via a bearing, the lower end of the rotating shaft (51) passes through the assembly sleeve (1), and the front side of the shift fork (52) is provided with an inner groove.

4. A control valve hydraulic scotch fork actuator according to claim 3, characterized in that: The intermediate rod (6) comprises a rod body (61), a communicating cavity (62) and a communicating port (63); the communicating cavity (62) is provided inside the rod body (61); the communicating port (63) is provided on the outer surface of the rod body (61) and is in communication with the communicating cavity (62).

5. A control valve hydraulic scotch fork actuator according to claim 4, characterized in that: The guide block (9) comprises a column (91), an annular groove (92), an intermediate opening (93), an elastic washer (94), a second communication opening (95) and an intermediate cavity (96); the annular groove (92) is provided on the outer surface of the column (91); the intermediate cavity (96) is provided inside the column (91); the column (91) is fixed on the outer surface of the rod body (61); the intermediate opening (93) is provided inside the column (91); two ends of the intermediate opening (93) are respectively connected to the intermediate cavity (96) and the annular groove (92); the intermediate cavity (96) is connected to the communication cavity (62); the elastic washer (94) is fixedly nested in the annular groove (92); the second communication opening (95) is provided in the elastic washer (94) and is aligned and connected to the intermediate opening (93).

6. A control valve hydraulic scotch fork actuator according to claim 5, characterized in that: The compression assembly (7) comprises a movable plug (71), a spring (72) and a sealing ring (73); one end of the spring (72) is fixed in the hydraulic cylinder (2), and the other end is fixedly connected to the movable plug (71); the sealing ring (73) is fixedly nested on the outer surface of the movable plug (71); the movable plug (71) is movably sleeved in the hydraulic cylinder (2) and fixedly connected to the intermediate rod (6); and an oil inlet pipe (10) is fixedly provided at the top of the hydraulic cylinder (2).

7. A control valve hydraulic scotch yoke actuator according to claim 6, characterized in that: The elastic storage assembly (8) comprises a fixed sleeve (81), a fixed ring (82), an elastic storage ring (83) and a conducting cavity (84); the fixed sleeve (81) and the fixed ring (82) are both fixedly sleeved on the outer surface of the rod body (61); the conducting cavity (84) is opened inside the fixed sleeve (81); the conducting cavity (84) is communicated with the first communicating port (63); the elastic storage ring (83) is fixedly sleeved in the fixed sleeve (81) and fixedly connected to the fixed ring (82); the elastic storage ring (83) is movably sleeved on the outer side of the intermediate rod (6); the interior of the elastic storage ring (83) is communicated with the conducting cavity (84); and the interior of the elastic storage ring (83) is filled with lubricating oil.

8. A control valve hydraulic scotch fork actuator according to claim 7, characterized in that: A connecting assembly (11) is fixedly provided on the side of the oil inlet pipe (10), a filter cover (13) is sleeved inside the oil inlet pipe (10), a filter hole (14) is provided at the bottom of the filter cover (13), a positioning ring (12) is fixedly provided inside the oil inlet pipe (10), the positioning ring (12) is located at the upper and lower sides of the filter cover (13), and the connecting assembly (11) controls the filter cover (13) to enter and exit along the outer side of the oil inlet pipe (10).

9. A control valve hydraulic scotch fork actuator according to claim 8, characterized in that: The connecting assembly (11) comprises a fixing frame (111), a connecting rod (112), a sealing block (113), a mounting plate (114), a heating pipe (115) and a side groove (116); the fixing frame (111) is fixedly connected to the outer side surface of the oil inlet pipe (10); the connecting rod (112) is movably sleeved in the fixing frame (111) and one end is fixedly sleeved in the filter cover (13); the sealing block (113) is fixedly sleeved on the outer side of the connecting rod (112). The connecting rod (112) is provided with a mounting plate (114) which is fixedly mounted on the outer end of the connecting rod (112) and is magnetically attracted to the end of the fixing frame (111). The connecting rod (112) is provided with a mounting cavity inside. The heating tube (115) is fixedly connected to the mounting cavity. The side groove (116) is arranged around the outer surface of the connecting rod (112) and is connected to the mounting cavity. The heating tube (115) is located in the filter cover (13).

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