Hydraulic shifting fork type actuating mechanism of control valve

Abstract

The utility model relates to the technical field of valve control, in particular to a hydraulic shifting fork type actuating mechanism of a control valve, which is characterized in that a shifting fork rod is lubricated through a lubricating mechanism in the using process, the abrasion of the shifting fork rod in the using process is reduced, the service life of the shifting fork rod is ensured, the use is convenient, and the practicability is high. Comprising a protective shell, a mounting frame, a rotating shaft and a shifting fork rod, a cavity is formed in the protective shell, the mounting frame is fixedly mounted on the outer side wall of the protective shell, the rotating shaft is rotatably mounted on the protective shell, the lower end of the rotating shaft is located on the lower side of the protective shell, and the front portion of the shifting fork rod fixedly sleeves the upper portion of the rotating shaft; the device further comprises a driving mechanism and a lubricating mechanism, the driving mechanism is installed on the protective shell and the shifting fork rod and used for driving the shifting fork rod to rotate, the output end of the lubricating mechanism is located on the shifting fork rod, and the lubricating mechanism is used for lubricating the shifting fork rod.

Description

Technical Field

[0001] This utility model relates to the technical field of valve control, and in particular to a hydraulic fork actuator for a control valve. Background Technology

[0002] A hydraulic fork actuator is a device used to control the opening and closing of a control valve. It is connected to the handwheel of the control valve, and the valve's opening and closing are achieved by rotating the handwheel. In the prior art, utility model patent application number 201921550662.0 discloses a transmission device for a fork hydraulic actuator, which mainly consists of a fork rod, a pin, a hydraulic cylinder, and a crossbar. In use, the hydraulic cylinder causes the crossbar to move the pin, which in turn slides on the fork rod, controlling the rotation of the fork rod. This, in turn, causes the shaft connected to the fork rod to rotate, thus controlling the opening and closing of the external control valve. However, this device has the following problems: during use, the pin needs to slide on the fork rod, which easily leads to wear of the fork rod after long-term use, making it inconvenient to use and resulting in a short service life. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a hydraulic shift fork actuator for control valves that lubricates the shift fork lever through a lubrication mechanism during use, reducing wear on the shift fork lever, ensuring the service life of the shift fork lever, and is convenient to use and highly practical.

[0004] This utility model relates to a hydraulic fork-type actuator for a control valve, comprising a protective housing, a mounting bracket, a rotating shaft, and a fork lever. The protective housing contains a chamber, and the mounting bracket is fixedly mounted on the outer wall of the protective housing. The rotating shaft is rotatably mounted on the protective housing, with its lower end located on the lower side of the housing. The front part of the fork lever is fixedly fitted onto the upper part of the rotating shaft. It also includes a drive mechanism and a lubrication mechanism. The drive mechanism is mounted on the protective housing and the fork lever, and is used to drive the fork lever to rotate. The output end of the lubrication mechanism is located on the fork lever, and the lubrication mechanism is used to lubricate the fork lever. The lower end of the rotating shaft is connected to the control handwheel on an external control valve, and then the protective housing is fixedly mounted on an external support via the mounting bracket. When it is necessary to control the opening and closing of the control valve, the drive mechanism is activated, causing the fork lever to rotate. The fork lever then rotates the rotating shaft, which in turn rotates the handwheel on the control valve, thus achieving the opening and closing of the control valve. Simultaneously, the lubrication mechanism lubricates the fork lever during use, reducing wear and ensuring its service life. It is convenient to use and highly practical.

[0005] Preferably, the driving mechanism includes a moving mechanism, a slider, a connecting shaft, and a moving block. The shift fork is provided with a groove, and the slider is slidably installed within the groove. The upper part of the connecting shaft is fixedly installed on the slider, and the lower part of the connecting shaft is provided with a bearing. The lower part of the connecting shaft is rotatably connected to the bearing, which is fixedly installed on the moving block. The moving mechanism is used to move the moving block left and right, and is mounted on a protective shell. When the shift fork is rotated, the moving mechanism is activated, causing the moving block to move left and right. This, in turn, causes the connecting shaft to move the slider left and right, thereby causing the shift fork to rotate. This, in turn, rotates the rotating shaft, controlling the opening and closing of the external control valve, improving convenience.

[0006] Preferably, it also includes a fixing rod, which is fixedly installed on the protective shell, and the movable block is slidably installed on the fixing rod from left to right; the above configuration improves the stability of the movable block during movement.

[0007] Preferably, the moving mechanism includes a mounting base, a hydraulic cylinder, and a push rod. The mounting base is fixedly installed on the left side of the protective shell, the hydraulic cylinder is fixedly installed on the mounting base, and the push rod is slidably installed on the hydraulic cylinder and the mounting base. The left end of the push rod is connected to the output end of the hydraulic cylinder, and the right end of the push rod is fixedly connected to the moving block. When it is necessary to move the moving block in the left and right direction, the hydraulic cylinder is opened, and the hydraulic cylinder drives the moving block to move in the left and right direction through the push rod. This facilitates the left and right movement of the moving block.

[0008] Preferably, the lubrication mechanism includes an oil supply mechanism, two sets of oil supply pipes and a delivery pipe. Oil passages are provided on both the left and right sides of the shift fork, and multiple sets of oil drain holes are provided on both the left and right sides of the shift fork slide groove. These multiple sets of oil drain holes are respectively connected to the two sets of oil passages. The output ends of the two sets of oil supply pipes are respectively connected to the input ends of the two sets of oil passages, and the input ends of the two sets of oil supply pipes are connected to the delivery pipe. The input end of the delivery pipe is connected to the oil supply mechanism, which supplies lubricating oil to the delivery pipe. When the shift fork is in use, lubricating oil is supplied to the delivery pipe through the oil supply mechanism. Then, the lubricating oil enters the two sets of oil passages through the delivery pipe and the two sets of oil supply pipes. Finally, the lubricating oil is discharged into the slide groove of the shift fork through the multiple sets of oil drain holes on the two sets of oil passages, lubricating the slide groove of the shift fork and reducing wear on the shift fork when the slider slides within the slide groove, thus ensuring the service life of the shift fork.

[0009] Preferably, the oil supply mechanism includes an oil tank, a delivery pump, and a hose. The input end of the delivery pump is connected to the oil tank, and the output end of the delivery pump is connected to the delivery pipe through the hose. When the shift fork lever is in use, the delivery pump is turned on, so that the lubricating oil in the oil tank is delivered to the delivery pipe in sequence through the delivery pump and the hose, which facilitates the delivery of lubricating oil.

[0010] Preferably, it also includes a sealing cap, which is bolted to the upper end of the protective shell; the above arrangement reduces the amount of dust falling into the cavity of the protective shell and improves cleanliness.

[0011] Preferably, the sealing cover is provided with an observation window and a handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the lubrication mechanism lubricates the shift fork during use, reducing wear on the shift fork and ensuring its service life. It is convenient to use and highly practical. Attached Figure Description

[0013] Figure 1 This is an exploded view of this utility model;

[0014] Figure 2 This is an axonometric structural diagram of the utility model;

[0015] Figure 3 This is a structural diagram of the drive mechanism, shift fork lever, and rotating shaft;

[0016] Figure 4 This is a cross-sectional view of the shift fork lever.

[0017] Figure 5 This is a schematic diagram of the shift fork lever and the oil supply mechanism.

[0018] The following are labels in the attached diagram: 1. Protective shell; 2. Mounting bracket; 3. Rotating shaft; 4. Shift fork lever; 5. Slider; 6. Connecting shaft; 7. Moving block; 8. Fixed rod; 9. Mounting seat; 10. Hydraulic cylinder; 11. Push rod; 12. Oil passage; 13. Oil drain hole; 14. Oil supply pipe; 15. Delivery pipe; 16. Oil tank; 17. Delivery pump; 18. Hose; 19. Sealing cap. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0020] Example 1

[0021] like Figures 1 to 5The hydraulic fork actuator of this utility model includes a protective housing 1, a mounting bracket 2, a rotating shaft 3, a fork lever 4, a drive mechanism, and a lubrication mechanism. The protective housing 1 has a chamber inside. The mounting bracket 2 is fixedly installed on the outer wall of the protective housing 1. The rotating shaft 3 is rotatably installed on the protective housing 1, with its lower end located on the lower side of the protective housing 1. The front part of the fork lever 4 is fixedly fitted onto the upper part of the rotating shaft 3. The drive mechanism is installed on the protective housing 1 and the fork lever 4, and is used to drive the fork lever 4 to rotate. The output end of the lubrication mechanism is located on the fork lever 4, and the lubrication mechanism is used to lubricate the fork lever. Lubrication of lever 4; Connect the lower end of the rotating shaft 3 to the control handwheel on the external control valve, and then fix the protective shell 1 on the external bracket through the mounting bracket 2; When it is necessary to control the opening and closing of the control valve, open the drive mechanism, the drive mechanism drives the shift fork lever 4 to rotate, the shift fork lever 4 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the handwheel on the control valve to rotate, thereby realizing the opening and closing of the control valve; At the same time, the shift fork lever 4 is lubricated by the lubrication mechanism during use, which reduces the wear of the shift fork lever 4 during use, ensures the service life of the shift fork lever 4, is convenient to use, and has high practicality.

[0022] like Figure 1 and Figure 3 The driving mechanism includes a moving mechanism, a slider 5, a connecting shaft 6, and a moving block 7. The shift fork 4 has a groove, and the slider 5 is slidably installed within the groove. The upper part of the connecting shaft 6 is fixedly installed on the slider 5, and the lower part of the connecting shaft 6 is provided with a bearing. The lower part of the connecting shaft 6 is rotatably connected to the bearing, which is fixedly installed on the moving block 7. The moving mechanism is used to move the moving block 7 left and right, and is mounted on the protective shell 1. When the shift fork 4 is rotated, the moving mechanism is activated, causing the moving block 7 to move left and right. This, in turn, causes the connecting shaft 6 to move the slider 5 left and right, thereby causing the shift fork 4 to rotate. This, in turn, causes the rotating shaft 3 to rotate, controlling the opening and closing of the external control valve, thus improving convenience.

[0023] The fixed rod 8 is fixedly installed on the protective shell 1, and the movable block 7 is slidably installed on the fixed rod 8; the above arrangement improves the stability of the movable block 7 during movement.

[0024] like Figure 3 The moving mechanism includes a mounting base 9, a hydraulic cylinder 10, and a push rod 11. The mounting base 9 is fixedly installed on the left side of the protective shell 1, the hydraulic cylinder 10 is fixedly installed on the mounting base 9, and the push rod 11 is slidably installed on the hydraulic cylinder 10 and the mounting base 9. The left end of the push rod 11 is connected to the output end of the hydraulic cylinder 10, and the right end of the push rod 11 is fixedly connected to the moving block 7. When it is necessary to move the moving block 7 in the left and right directions, the hydraulic cylinder 10 is opened, and the hydraulic cylinder 10 drives the moving block 7 to move in the left and right directions through the push rod 11. This facilitates the left and right movement of the moving block 7.

[0025] like Figure 4 and Figure 5 The lubrication mechanism includes an oil supply mechanism, two sets of oil supply pipes 14, and a delivery pipe 15. Oil passages 12 are provided on both the left and right sides of the shift fork 4. Multiple sets of oil drain holes 13 are provided on both the left and right sides of the shift fork 4's sliding groove. These multiple sets of oil drain holes 13 are respectively connected to the two sets of oil passages 12. The output ends of the two sets of oil supply pipes 14 are respectively connected to the input ends of the two sets of oil passages 12. The input ends of the two sets of oil supply pipes 14 are both connected to the delivery pipe 15. The input end of the delivery pipe 15 is connected to the oil supply mechanism. The oil supply mechanism... This mechanism is used to supply lubricating oil to the delivery pipe 15. When the shift fork 4 is in use, lubricating oil is supplied to the delivery pipe 15 via the oil supply mechanism. The lubricating oil then enters the two sets of oil passages 12 through the delivery pipe 15 and two sets of oil supply pipes 14. Afterward, the lubricating oil is discharged into the sliding groove of the shift fork 4 through multiple sets of drain holes 13 on the two sets of oil passages 12, lubricating the sliding groove of the shift fork 4 and reducing wear on the shift fork 4 when the slider 5 slides within the sliding groove, thus ensuring the service life of the shift fork 4. The oil supply mechanism includes an oil tank 16, a delivery pump 17, and a hose 18. The input end of the delivery pump 17 is connected to the oil tank 16, and the output end of the delivery pump 17 is connected to the delivery pipe 15 through the hose 18. When the shift fork 4 is in use, the delivery pump 17 is turned on, allowing the lubricating oil in the oil tank 16 to be sequentially delivered to the delivery pipe 15 via the delivery pump 17 and the hose 18, facilitating the delivery of lubricating oil.

[0026] Example 2

[0027] Based on Example 1, a sealing cover 19 is added. The sealing cover 19 is installed on the upper end of the protective shell 1 by bolts. The sealing cover 19 is provided with an observation window and a handle. Through the above-mentioned arrangement, the dust falling into the cavity of the protective shell 1 is reduced, and the cleanliness is improved.

[0028] The control valve hydraulic fork actuator of this utility model, including the fork lever 4, hydraulic cylinder 10, oil supply pipe 14, and delivery pump 17, are all commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic fork actuator for a control valve, comprising a protective housing (1), a mounting bracket (2), a rotating shaft (3), and a fork lever (4), wherein the protective housing (1) has a chamber, the mounting bracket (2) is fixedly mounted on the outer wall of the protective housing (1), the rotating shaft (3) is rotatably mounted on the protective housing (1), the lower end of the rotating shaft (3) is located on the lower side of the protective housing (1), and the front part of the fork lever (4) is fixedly fitted onto the upper part of the rotating shaft (3); characterized in that, It also includes a drive mechanism and a lubrication mechanism. The drive mechanism is mounted on the protective shell (1) and the shift fork (4). The drive mechanism is used to drive the shift fork (4) to rotate. The output end of the lubrication mechanism is located on the shift fork (4). The lubrication mechanism is used to lubricate the shift fork (4).

2. The hydraulic fork actuator for a control valve as described in claim 1, characterized in that, The driving mechanism includes a moving mechanism, a slider (5), a connecting shaft (6), and a moving block (7). The shift fork (4) is provided with a groove, and the slider (5) is slidably installed in the groove of the shift fork (4). The upper part of the connecting shaft (6) is fixedly installed on the slider (5), and the lower part of the connecting shaft (6) is provided with a bearing. The lower part of the connecting shaft (6) is rotatably connected to the bearing, and the bearing is fixedly installed on the moving block (7). The moving mechanism is used to move the moving block (7) left and right. The moving mechanism is installed on the protective shell (1).

3. The hydraulic fork actuator for a control valve as described in claim 2, characterized in that, It also includes a fixing rod (8), which is fixedly installed on the protective shell (1), and the movable block (7) is slidably installed on the fixing rod (8).

4. The hydraulic fork actuator for a control valve as described in claim 2, characterized in that, The moving mechanism includes a mounting base (9), a hydraulic cylinder (10), and a push rod (11). The mounting base (9) is fixedly installed on the left side of the protective shell (1). The hydraulic cylinder (10) is fixedly installed on the mounting base (9). The push rod (11) is slidably installed on the hydraulic cylinder (10) and the mounting base (9). The left end of the push rod (11) is connected to the output end of the hydraulic cylinder (10), and the right end of the push rod (11) is fixedly connected to the moving block (7).

5. The hydraulic fork actuator for a control valve as described in claim 1, characterized in that, The lubrication mechanism includes an oil supply mechanism, two sets of oil supply pipes (14) and a delivery pipe (15). The left and right sides of the shift fork (4) are provided with oil passages (12). The left and right sides of the sliding groove of the shift fork (4) are provided with multiple sets of oil drain holes (13). The multiple sets of oil drain holes (13) are respectively connected to the two sets of oil passages (12). The output ends of the two sets of oil supply pipes (14) are respectively connected to the input ends of the two sets of oil passages (12). The input ends of the two sets of oil supply pipes (14) are connected to the delivery pipe (15). The input end of the delivery pipe (15) is connected to the oil supply mechanism. The oil supply mechanism is used to deliver lubricating oil to the delivery pipe (15).

6. The hydraulic fork actuator for a control valve as described in claim 5, characterized in that, The oil supply mechanism includes an oil tank (16), a delivery pump (17) and a hose (18). The input end of the delivery pump (17) is connected to the oil tank (16), and the output end of the delivery pump (17) is connected to the delivery pipe (15) through the hose (18).

7. The hydraulic fork actuator for a control valve as described in claim 1, characterized in that, It also includes a sealing cap (19), which is bolted to the upper end of the protective shell (1).

Images