Integrated self-lubricating structure's non-corrosion swing type hydraulic actuating oil cylinder

Abstract

The present application relates to the technical field of hydraulic oil cylinder, disclose a kind of integrated self-lubricating structure's non-corrosion swing type hydraulic actuator, including base, the oil cylinder body of being arranged on the upper end of base, further include the running unit being arranged in the oil cylinder body, the running unit includes the swing component and self-lubricating component being arranged in the oil cylinder body;The swing component includes the baffle being arranged in the oil cylinder body, the output shaft rod being arranged at the axis of the oil cylinder body inside;By setting self-lubricating component in the inside of vane plate, when vane plate moves in the inside of oil cylinder body, first sealing plate and second sealing plate alternately seal vane plate, and another is lubricated by the hydraulic oil in the inside of oil cylinder body, ensure that vane has enough lubricating oil to seal and lubricate on the first sealing plate or second sealing plate contacted with oil cylinder body during working.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydraulic oil cylinders, in particular to a corrosion-free swing type hydraulic execution oil cylinder integrated with a self-lubricating structure. BACKGROUND

[0002] The swing type hydraulic oil cylinder is a hydraulic execution element for converting hydraulic energy into rotary mechanical energy, and the core feature is to output a limited angle swing movement (instead of a linear movement), and is widely applied to industrial scenes requiring reciprocating swing actions. The swing type hydraulic oil cylinder converts the linear thrust / pull force of a hydraulic system into a fixed angle rotary torque through the pressure difference of hydraulic oil, so as to realize the reciprocating swing of an output shaft. The working principle is as follows: the hydraulic system inputs high-pressure oil to one side oil port of the oil cylinder, pushes the internal moving part to generate displacement, and the moving part drives the output shaft to swing through a mechanical structure. The low-pressure oil of the other side oil port is discharged, and one swing stroke is completed. When the high-pressure oil is input in the reverse direction, the output shaft swings in the reverse direction to realize reciprocating movement.

[0003] During the use of the swing type hydraulic oil cylinder, the vane or piston is usually periodically lubricated and sealed by using hydraulic oil, so as to reduce friction during operation, prolong the service life of the vane and the oil cylinder, and reduce the maintenance cost. The existing manual hydraulic oil application process is relatively troublesome, and the oil cylinder needs to be disassembled. If the operation is improper, the sealing performance of the oil cylinder with the outside may be affected. Therefore, an oil cylinder capable of automatically applying hydraulic oil to the contact surface of the vane and the oil cylinder needs to be designed. SUMMARY

[0004] In view of the problems that the existing manual hydraulic oil application operation is relatively complex and may affect the sealing performance of the oil cylinder, a corrosion-free swing type hydraulic execution oil cylinder integrated with a self-lubricating structure is provided.

[0005] The application provides a corrosion-free swing type hydraulic execution oil cylinder integrated with a self-lubricating structure. The purpose is to set a self-lubricating part in the inside of the vane plate. When the vane plate moves in the inside of the oil cylinder body, the first sealing plate and the second sealing plate alternately seal the vane plate, and the other is lubricated by the hydraulic oil in the inside of the oil cylinder body. It is ensured that the first sealing plate or the second sealing plate in contact with the oil cylinder body during the work of the vane has sufficient lubricating oil for sealing and lubrication.

[0006] The technical scheme of the application is as follows: a corrosion-free swing type hydraulic execution oil cylinder integrated with a self-lubricating structure, comprising a base, an oil cylinder body arranged at the upper end of the base, and a running unit arranged in the inside of the oil cylinder body, wherein the running unit comprises a swing part and a self-lubricating part arranged in the inside of the oil cylinder body.

[0007] The swinging component comprises a baffle arranged in the oil cylinder body, an output shaft arranged at the axis of the oil cylinder body, a vane plate arranged on the outer wall of the output shaft, a first sealing plate and a second sealing plate slidably arranged in the vane plate.

[0008] The self-lubricating component comprises a mounting groove arranged in the vane plate, a connecting plate arranged at one end of the first sealing plate and the second sealing plate respectively, a reset spring arranged between the inner wall of the mounting groove and the side wall of the corresponding connecting plate, an inflation groove arranged in the vane plate, and an inflation assembly arranged in the inflation groove.

[0009] Further, the inflation assembly comprises an air bag arranged in the inflation groove, a sealing rod slidably arranged in the vane plate, and the sealing rod is tightly attached to the corresponding connecting plate at one end.

[0010] Further, the trigger assembly comprises a through groove arranged in the vane plate, a sliding rod slidably arranged in the through groove, a first pressure plate and a second pressure plate arranged at the upper and lower ends of the sliding rod, two extrusion plates arranged on the side wall of the sliding rod, and two air bags arranged between the corresponding extrusion plates and the inner wall of the inflation groove.

[0011] Further, a communication pipe is fixedly arranged between the two air bags, and the two air bags are in communication with each other through the communication pipe.

[0012] Further, the baffle and the vane plate cooperate with each other to divide the internal region of the oil cylinder body into an upper region and a lower region.

[0013] Further, an upper pressurizing port and a lower pressurizing port are arranged on the outer wall of the oil cylinder body, the upper pressurizing port is located in the upper region, and the lower pressurizing port is located in the lower region.

[0014] Further, an output cavity is arranged on the side wall of the oil cylinder body, and one end of the output shaft is coincided with the output cavity.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. By arranging the self-lubricating component, when the vane plate moves in the oil cylinder body, the surface of the other sealing plate can be coated with hydraulic oil while ensuring that the first sealing plate and the second sealing plate alternately seal the vane plate, so that there is enough lubricating oil on the sealing plate in contact with the oil cylinder body during the movement of the vane plate.

[0017] 2. By arranging the self-lubricating component, when the vane plate works, the first sealing plate and the second sealing plate are alternately used through the pressure difference between the upper region and the lower region, without the need for additional power source, which effectively reduces the use and maintenance cost. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cylinder body of the present invention;

[0020] Figure 3 This is a schematic diagram of the planar structure of the self-lubricating component of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the diagram;

[0022] Figure 5 This is a schematic diagram of the trigger component structure of the present invention.

[0023] In the picture:

[0024] 1. Base; 2. Cylinder body; 101. Baffle; 102. Output shaft; 103. Blade plate; 104. First sealing plate; 105. Second sealing plate; 201. Mounting groove; 202. Connecting plate; 203. Return spring; 301. Airbag; 302. Sealing rod; 401. Sliding rod; 402. First pressure plate; 403. Second pressure plate; 404. Extrusion plate; 405. Connecting pipe; 501. Upper region; 502. Lower region; 503. Upper pressure port; 504. Lower pressure port; 505. Output chamber. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1, referring to Figures 1-5 The first embodiment of the present invention provides a corrosion-free swing hydraulic actuator with an integrated self-lubricating structure, including a base 1, a cylinder body 2 fixedly installed on the upper end of the base 1, and an operating unit installed inside the cylinder body 2. The operating unit includes a swing component and a self-lubricating component installed inside the cylinder body 2.

[0027] The rocking component includes a baffle 101 fixedly installed inside the cylinder body 2, an output shaft 102 rotatably installed at the shaft center inside the cylinder body 2, a blade plate 103 fixedly installed on the outer wall of the output shaft 102, a first sealing plate 104 and a second sealing plate 105 slidably installed inside the blade plate 103.

[0028] The self-lubricating part comprises a mounting groove 201 opened in the vane plate 103, a connecting plate 202 fixedly installed at one end of the first sealing plate 104 and the second sealing plate 105 respectively, a reset spring 203 fixedly installed between the inner wall of the mounting groove 201 and the side wall of the corresponding connecting plate 202, an inflation groove opened in the vane plate 103, an inflation assembly installed in the inflation groove, and a triggering assembly installed on both sides of the vane plate 103.

[0029] Specifically, the swing part is a prior art, by injecting hydraulic oil in different directions, the vane plate 103 on the output shaft rod 102 is deflected under the action of pressure, and the output shaft rod 102 is driven to move synchronously during the deflection process, the output shaft rod 102 transmits mechanical energy to the output end, and then the work of the oil cylinder is realized, and in the prior art, the end of the vane plate 103 in contact with the oil cylinder body 2 is in continuous contact with the inner wall of the oil cylinder body 2 during the rotation of the vane plate 103 on the inner wall of the oil cylinder body 2, in order to ensure the service life and cost of the oil cylinder, therefore, it is necessary to regularly lubricate the end of the vane plate 103, and the existing manual lubrication is complicated, and frequent disassembly of the oil cylinder will affect the sealing with the outside, therefore, the self-lubricating part is designed, by different pressure differences received by the vane plate 103, the self-lubricating part can intermittently lubricate the side of the vane plate 103 in contact with the inner wall of the oil cylinder body 2.

[0030] The first sealing plate 104 and the second sealing plate 105 are designed in the present application, and the gap between the oil cylinder body 2 and the vane plate 103 is sealed. Therefore, the first sealing plate 104 and the second sealing plate 105 actually contact the oil cylinder body 2 in the present application, and the working principle of the self-lubricating part is that, during the deflection of the vane plate 103, the pressure differences on both sides are different, that is, when the pressure at the first sealing plate 104 is small, the first sealing plate 104 seals, and the end of the second sealing plate 105 directly contacts the hydraulic oil in the oil cylinder body 2, the hydraulic oil uniformly acts on the end of the second sealing plate 105, so that the hydraulic oil can lubricate the second sealing plate 105. When the pressure at the second sealing plate 105 is small, the second sealing plate 105 seals between the vane plate 103 and the inner wall of the oil cylinder body 2, and lubricates the area of the first sealing plate 104. The specific working principle is referred to the triggering assembly.

[0031] Referring to Figure 4 and Figure 5The triggering assembly comprises a through groove formed in the vane plate 103, a sliding rod 401 slidingly installed in the through groove, a first pressure plate 402 and a second pressure plate 403 fixedly installed at the upper and lower ends of the sliding rod 401, two extrusion plates 404 fixedly installed on the side wall of the sliding rod 401, and two air bags 301 respectively located between the corresponding extrusion plates 404 and the inner wall of the inflation groove. A communication pipe 405 is fixedly installed between the two air bags 301, and the two air bags 301 are in communication with each other through the communication pipe 405. The baffle 101 and the vane plate 103 cooperate with each other to divide the internal region of the oil cylinder body 2 into an upper region 501 and a lower region 502.

[0032] Specifically, the triggering assembly is a key component for controlling whether the first sealing plate 104 and the second sealing plate 105 are sealed or lubricated. When the vane plate 103 moves in the clockwise direction (refer to Figure 3 ), that is, the vane plate 103 receives a greater pressure from above than from below, the vane plate 103 moves in the clockwise direction while the first pressure plate 402 moves downward under the action of the pressure, thereby driving the corresponding extrusion plate 404 to move synchronously. At this time, the extrusion plate 404 extrudes the air bag 301 located above, and the air bag 301 below is not extruded. At this time, the gas in the air bag 301 above is discharged into the air bag 301 below through the communication pipe 405, and the air bag 301 below expands to extrude the second sealing plate 105, so that the second sealing plate 105 tightly abuts against the inner wall of the oil cylinder body 2, while the first sealing plate 104 does not tightly abut against the inner wall of the oil cylinder body 2. At this time, the hydraulic oil in the interior can fully contact the first sealing plate 104 and lubricate the first sealing plate 104. Conversely, when the vane plate 103 rotates in the counterclockwise direction (refer to Figure 3 ), the first sealing plate 104 tightly abuts against the inner wall of the oil cylinder body 2, while the second sealing plate 105 is in contact with the hydraulic oil for lubrication. The whole process does not require manual intervention, and the vane plate 103 and the inner wall of the oil cylinder body 2 can be lubricated and sealed during the operation of the oil cylinder.

[0033] Embodiment 2, refer to Figures 1-3 , which is different from the first embodiment. The outer wall of the oil cylinder body 2 is provided with an upper pressurizing port 503 and a lower pressurizing port 504. The upper pressurizing port 503 is located in the upper region 501, and the lower pressurizing port 504 is located in the lower region 502. The side wall of the oil cylinder body 2 is provided with an output cavity 505, and one end of the output shaft rod 102 coincides with the output cavity 505.

[0034] Specifically, the upper region 501 and the lower region 502 are prior art, and the staff alternately injects hydraulic oil through the upper pressurizing port 503 and the lower pressurizing port 504; when the upper pressurizing port 503 injects hydraulic oil, the pressure at the upper region 501 is relatively large, and thus the first pressure plate 402 is subjected to a larger pressure than the second pressure plate 403, so that the first pressure plate 402 drives the extrusion plate 404 to extrude the air bag 301 located above; conversely, when the lower pressurizing port 504 injects hydraulic oil, the air bag 301 located below is extruded and triggers the self-lubricating part through the triggering assembly to lubricate and seal the first sealing plate 104 or the second sealing plate 105.

[0035] By alternately injecting hydraulic oil, the vane plate 103 reciprocates under the action of pressure, thereby synchronously rotating the output shaft 102, and the shaft that needs to be mechanically moved is installed in the output cavity 505, so that the movement of the output shaft 102 can drive the shaft to move synchronously, and the transmission of mechanical movement is realized (this is prior art, which will not be described in detail here).

[0036] The rest of the structure is the same as that of example 1.

[0037] In combination with examples 1-2, the working principle of the present application is as follows: when the oil cylinder works, the staff alternately injects hydraulic oil into the upper pressurizing port 503 and the lower pressurizing port 504, thereby driving the reciprocating rotation of the vane plate 103.

[0038] When the upper pressurizing port 503 injects hydraulic oil into the upper region 501 inside the oil cylinder body 2, the pressure above the vane plate 103 is greater than the pressure below, so that the vane plate 103 moves clockwise (see Figure 3 During the movement of the vane plate 103, the first pressure plate 402 located above is subjected to a larger pressure than the second pressure plate 403, so that the first pressure plate 402 moves downward under the action of pressure and synchronously drives the sliding rod 401 to move, and the sliding rod 401 drives the extrusion plate 404 on the side wall to extrude the air bag 301 above, thereby extruding the gas in the air bag 301 above to the air bag 301 below, and the air bag 301 below expands to extrude the second sealing plate 105 through the sealing resistance rod 302, so that the second sealing plate 105 is tightly attached to the inner wall of the oil cylinder body 2 during the extrusion, thereby playing a sealing role, and the first sealing plate 104 has a gap with the inner wall of the oil cylinder body 2, and the hydraulic oil inside the gap contacts one end of the first sealing plate 104 and lubricates the one end of the first sealing plate 104, thereby preparing for the subsequent sealing of the first sealing plate 104.

[0039] When the vane plate 103 rotates clockwise by a certain angle, the lower pressurizing port 504 injects hydraulic oil into the lower region 502, and the pressure of the lower region 502 is greater than that of the upper region 501, so that the vane plate 103 rotates counterclockwise (seeFigure 3 ), and then the second pressure plate 403 moves upward under the pressure, the extrusion plate 404 under the sliding rod 401 extrudes the lower air bag 301, and the gas in the lower air bag 301 is extruded into the upper air bag 301, the upper air bag 301 expands and extrudes the first sealing plate 104 through the sealing resistance rod 302, so that the first sealing plate 104 is sealed, and the second sealing plate 105 is lubricated, and the two work alternately to ensure that the blade plate 103 is lubricated with sufficient hydraulic oil during rotation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A non-corrosive oscillating hydraulic actuator integrated with self-lubricating structure, comprising a base (1), an actuator body (2) arranged on the upper end of the base (1), characterized in that, Also include the operation unit arranged in the oil cylinder body (2), the operation unit includes the swing component arranged in the oil cylinder body (2) and self-lubricating component; The swing component includes the baffle (101) arranged in the oil cylinder body (2), the output shaft (102) arranged at the axis of the oil cylinder body (2), the vane plate (103) arranged on the outer wall of the output shaft (102), the first sealing plate (104) and the second sealing plate (105) slidingly installed in the vane plate (103); The self-lubricating component includes the installation groove (201) opened in the vane plate (103), the connecting plate (202) arranged at one end of the first sealing plate (104) and the second sealing plate (105) respectively, the reset spring (203) arranged between the inner wall of the installation groove (201) and the side wall of the corresponding connecting plate (202), the inflation groove opened in the vane plate (103), the inflation assembly is installed in the inflation groove, and the trigger assembly is installed on both sides of the vane plate (103); The inflation assembly includes the air bag (301) arranged in the inflation groove, the sealing abutment rod (302) slidingly arranged in the vane plate (103), and the sealing abutment rod (302) is tightly attached to the corresponding connecting plate (202) at one end. The trigger assembly includes the through groove opened in the vane plate (103), the sliding rod (401) slidingly arranged in the through groove, the first pressure plate (402) and the second pressure plate (403) arranged at the upper and lower ends of the sliding rod (401), and the two extrusion plates (404) arranged on the side wall of the sliding rod (401), two The air bag (301) is located between the corresponding extrusion plate (404) and the inner wall of the inflation groove, so that the two air bags (301) can be extruded by the corresponding extrusion plate (404).

2. The non-corrosive oscillating hydraulic actuator with integrated self-lubricating structure according to claim 1, characterized in that The baffle (101) and the vane plate (103) cooperate with each other to divide the internal area of the oil cylinder body (2) into an upper area (501) and a lower area (502).

3. The non-corrosive oscillating hydraulic actuator with integrated self-lubricating structure according to claim 2, characterized in that The outer wall of the oil cylinder body (2) is provided with an upper pressurizing port (503) and a lower pressurizing port (504), the upper pressurizing port (503) is located in the upper area (501), and the lower pressurizing port (504) is located in the lower area (502).

4. The non-corrosive oscillating hydraulic actuator with integrated self-lubricating structure according to claim 1, characterized in that, The side wall of the oil cylinder body (2) is provided with an output cavity (505), and one end of the output shaft (102) coincides with the output cavity (505).

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