Improved power-assisted steering oil cylinder

Abstract

The invention relates to the technical field of hydraulic cylinders, in particular to an improved power-assisted steering oil cylinder which comprises a cylinder body, a telescopic rod is arranged at the right end of the cylinder body, a small cylinder barrel is arranged at the upper end of the cylinder body, and oil inlet and outlet pipes are arranged on the left side and the right side of the rear end of the cylinder body; and a lubricating mechanism used for lubricating the connecting position of the cylinder body and the telescopic rod is further arranged, and the lubricating mechanism comprises a lubricating box fixedly installed at the right end of the cylinder body. When the telescopic rod telescopically works in the cylinder body, the top strip rod can be driven to synchronously move, and the top strip rod can extrude and push an inclined block piston rod to move downwards and compress a first spring; the inclined block piston rod pushes lubricating oil in the oil storage barrel into the lubricating box through the oil feeding pipe, the lubricating oil evenly drips on the two sides of the upper portion of the sponge ring through the uniform plate, and the lubricating oil gradually permeates to all positions of the sponge ring and then is evenly attached to the joint of the telescopic rod and the cylinder body, so that the joint of the telescopic rod and the cylinder body is lubricated advantageously; and the service life of the oil cylinder is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinders, and in particular to an improved steering power cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device.

[0003] After searching, the patent with application number CN201220732854.5 discloses an "improved structure of automobile power steering cylinder", including a cylinder, a piston, a rear cover with a threaded connector, a front cover and a piston rod. The rear cover with a threaded connector is welded to one end of the cylinder, and the first ball pin is fixedly connected to the rear cover; two oil inlet and outlet joints are welded on the wall of the cylinder.

[0004] However, in the above patent, the piston rod works in the cylinder barrel for a long time during use, and the service life of the oil cylinder is easily reduced due to the lack of a lubrication structure at the connection between the piston rod and the cylinder barrel. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the piston rod works for a long time in the cylinder barrel and the service life of the cylinder barrel is easily reduced due to the lack of lubrication structure at the connection between the piston rod and the cylinder barrel, and to propose an improved steering power cylinder.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An improved steering power cylinder comprises a cylinder body, a telescopic rod is arranged at the right end of the cylinder body, a small cylinder barrel is arranged at the upper end of the cylinder body, and oil inlet and outlet pipes are arranged on both the left and right sides of the rear end of the cylinder body;

[0008] A lubrication mechanism is also provided for lubricating the connection between the cylinder body and the telescopic rod, the lubrication mechanism comprising a lubrication box fixedly mounted on the right end of the cylinder body, a return pipe is connected to the lower end of the lubrication box, an oil storage barrel is connected to the other end of the return pipe, the lower end of the oil storage barrel is fixedly connected to the lubrication box, an oil delivery pipe is connected to the lower side of the oil storage barrel, the other end of the oil delivery pipe is fixedly connected to the upper end of the lubrication box, and a uniform plate is fixedly provided on the lower side of the oil delivery pipe corresponding to the upper side of the lubrication box;

[0009] An anti-clogging mechanism is also provided for preventing the reflux pipe from being blocked. The anti-clogging mechanism comprises a filter plate slidably mounted on the right end of the lubrication box, and the anti-clogging plates are abutted and fitted on both the front and rear sides of the upper end of the filter plate.

[0010] Preferably, an inclined block piston rod is slidably mounted on the upper end of the oil storage barrel, a spring is sleeved on the outer side of the inclined block piston rod, a top bar is provided on the upper side of the inclined block piston rod, and the top bar is fixedly connected to the right end of the telescopic rod.

[0011] Preferably, a sponge ring is sleeved on the interior of the lubrication box at the connection between the telescopic rod and the cylinder body, and connecting blocks are fixedly installed on both the front and rear ends of the sponge ring.

[0012] Preferably, the ends of the connecting blocks that are away from each other are slidably mounted on the inner wall of the lubrication box, and a second spring is fixedly mounted on the lower end of the front connecting block, and the lower end of the second spring is fixedly connected to the inner wall of the lubrication box.

[0013] Preferably, a driving rod is fitted on the upper end of the connecting block corresponding to the front side of the front side of the lubrication box, and the driving rod is slidably installed on the front end of the lubrication box. A pressure strip is provided on the upper side of the driving rod, and the front end of the pressure strip is fixedly connected to the piston rod of the inclined block.

[0014] Preferably, an extrusion ring is symmetrically installed in the left end of the lubrication box for sliding front and rear corresponding to the sponge ring, a magnetic block 1 is fixedly installed on the lower side of the front extrusion ring, and a magnetic block 2 is fixedly installed on the right end of the front connecting block corresponding to the magnetic block 1.

[0015] Preferably, racks are fixedly mounted on the lower sides of the extrusion rings on both sides close to one end, gears are meshed between the racks, and the gears are rotatably mounted on the inner wall of the lubrication box.

[0016] Preferably, a fixing plate is slidably mounted on the upper end of the anti-clogging plate, and the left end of the fixing plate is fixedly connected to the extrusion rings on both sides respectively.

[0017] Preferably, a guide rod is fixedly installed on the left side of the upper end of the anti-clogging plate, and an inclined slot plate is slidably installed through the upper side of the guide rod, and the left end of the inclined slot plate is fixedly connected to the inner wall of the lubrication box.

[0018] Preferably, a limit block is slidably installed on the right end of the lubrication box corresponding to the filter plate, a spring three is fixedly installed on the lower end of the limit block, a cross plate is fixedly installed on the lower end of the spring three, and the cross plate is fixedly installed on the right end of the lubrication box.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, when the telescopic rod is telescopically extended in the cylinder body, the top bar rod will be driven to move synchronously, and the top bar rod will squeeze and push the inclined block piston rod to move downward, compressing the spring 1, and the inclined block piston rod pushes the lubricating oil in the oil storage barrel into the lubrication box through the oil delivery pipe. The lubricating oil drips evenly on both sides of the upper part of the sponge ring through the uniform plate, and the lubricating oil gradually penetrates into various positions of the sponge ring, and then evenly adheres to the connection between the telescopic rod and the cylinder body, which is beneficial to lubricate the connection between the telescopic rod and the cylinder body and improves the service life of the oil cylinder.

[0021] 2. In the present invention, excess lubricating oil in the sponge ring will drip to the inner lower side of the lubrication box and flow back to the oil storage barrel through the reflux pipe, completing the automatic oiling of the lubricating oil in the oil storage barrel. The lubricating oil can be recycled without manual operation, which is simple and convenient and improves the lubrication efficiency.

[0022] 3. In the present invention, when the piston rod of the inclined block descends, the piston rod of the inclined block reciprocates up and down, which will drive the pressure strip to move up and down synchronously. When the pressure strip moves downward, it will squeeze the driving rod, and the driving rod will slide downward to squeeze the connecting block. The connecting block drives the sponge ring to rotate on the surface of the telescopic rod and compresses the second spring. At the same time, the connecting block on the other side will also slide inside the lubrication box. The second spring plays the role of resetting the sponge ring. The reciprocating rotation of the sponge ring is conducive to evenly applying the lubricating oil to the connection between the telescopic rod and the cylinder body, thereby improving the lubrication quality.

[0023] 4. In the present invention, when the connecting block slides downward, it will also drive the second magnetic block to slide downward synchronously. When the second magnetic block moves to the side close to the first magnetic block, it will generate a magnetic repulsive force on the first magnetic block, pushing the front extrusion ring and the rack to slide backward, driving the gear to rotate, and the gear drives the rack at the rear side to make the extrusion ring at the rear side move forward (the extrusion rings on both sides are in relative motion), squeezing the sponge ring, which is conducive to evenly squeezing the lubricating oil in the sponge ring, so that the lubricating oil can evenly penetrate into various positions of the sponge ring. At the same time, it is also conducive to squeezing the lubricating oil in the sponge ring onto the surface of the telescopic rod, ensuring the lubrication effect.

[0024] 5. In the present invention, the filter plate is arranged to filter the excess lubricating oil in the sponge ring, so as to prevent foreign impurities from adhering to the lubricating oil on the surface of the telescopic rod when the telescopic rod is extended and retracted outward, and to prevent the lubricating oil from clogging the return pipe, the oil storage barrel and the oil delivery pipe during recovery, thereby ensuring the normal reflux and recycling of the lubricating oil, ensuring normal lubrication work, and reducing the situation where it is difficult to clean the blockage manually.

[0025] 6. In the present invention, when the extrusion rings on both sides move relative to each other, the fixed plates and anti-clogging plates on both sides will also be driven to move relative to each other. The anti-clogging plates are convenient for centralized scraping of impurities accumulated on the surface of the filter plate, thereby reducing the situation where the filter plate is completely blocked by impurities, resulting in the inability of the lubricating oil to pass through the filter plate smoothly, thereby ensuring the smooth progress of the lubrication work.

[0026] 7. In the present invention, when the anti-clogging plates on both sides are close to each other, under the action of the guide rod and the inclined slot plate, the anti-clogging plates will be driven to move along the inclined slot of the inclined slot plate, and the anti-clogging plates on both sides will gradually move in an offset manner on the fixed plate, which is beneficial to squeeze the impurities concentrated in the middle of the filter plate, and rub and squeeze out the excess lubricating oil in the impurities, saving the cost of the lubricating oil, avoiding the situation where the lubricating oil is mixed with the impurities for a long time and cannot be recycled, and also avoiding the situation where the lubricating oil in the impurities is difficult to separate when the impurities are subsequently cleaned.

[0027] 8. In the present invention, the limit block is pushed downward to compress spring three, and the limit block is separated from the filter plate, so that the filter plate can be directly drawn out of the lubrication box, which is convenient for centralized cleaning of impurities on the filter plate and smooth operation of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0029] Figure 2 It is a right side cross-sectional structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the top cross-sectional structure of the present invention;

[0031] Figure 4 For the present invention Figure 2 A partially enlarged structural diagram of the connection between the middle cylinder body and the lubrication box;

[0032] Figure 5 For the present invention Figure 3 A partially enlarged structural diagram of the connection between the middle cylinder body and the lubrication box;

[0033] Figure 6 For the present invention Figure 4 The structural diagram at A in the middle;

[0034] Figure 7 For the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0035] Figure 8 For the present invention Figure 5 Schematic diagram of the structure at C in the middle;

[0036] Fig. 9 For the present invention Figure 5 Schematic diagram of the structure at D in the middle;

[0037] In the figure: 1, cylinder body; 101, telescopic rod; 102, small cylinder; 103, oil inlet and outlet pipes;

[0038] Lubrication mechanism: 2. Lubrication box; 3. Return pipe; 4. Oil storage barrel; 5. Oil delivery pipe; 6. Bevel block piston rod; 7. Spring 1; 8. Top bar rod; 9. Sponge ring; 10. Connecting block; 11. Spring 2; 12. Driving rod; 13. Pressure strip; 14. Uniform plate; 15. Extrusion ring; 16. Magnetic block 1; 17. Magnetic block 2; 18. Rack; 19. Gear;

[0039] Anti-clogging mechanism: 20, filter plate; 21, anti-clogging plate; 22, fixing plate; 23, guide rod; 24, inclined slot plate; 25, limit block; 26, spring three; 27, cross plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Reference Figure 1-Figure 9An improved steering power cylinder comprises a cylinder body 1, a telescopic rod 101 is provided at the right end of the cylinder body 1, a small cylinder barrel 102 is provided at the upper end of the cylinder body 1, and oil inlet and outlet pipes 103 are provided on both sides of the rear end of the cylinder body 1; a lubricating mechanism for lubricating the connection between the cylinder body 1 and the telescopic rod 101 is also provided, and the lubricating mechanism comprises a lubrication box 2 fixedly mounted on the right end of the cylinder body 1, a return pipe 3 is connected at the lower end of the lubrication box 2, and an oil storage barrel 4 is connected at the other end of the return pipe 3, and the lower end of the oil storage barrel 4 is connected to the lubricating The sliding box 2 is fixedly connected, and an oil delivery pipe 5 is connected to the lower side of the oil storage barrel 4. The other end of the oil delivery pipe 5 is fixedly connected to the upper end of the lubrication box 2. A uniform plate 14 is fixedly provided on the lower side of the oil delivery pipe 5 corresponding to the upper side of the lubrication box 2. An inclined block piston rod 6 is slidably installed on the upper end of the oil storage barrel 4. A spring 7 is sleeved on the outer side of the inclined block piston rod 6. A top bar 8 is provided on the upper side of the inclined block piston rod 6. The top bar 8 is fixedly connected to the right end of the telescopic rod 101. The interior of the lubrication box 2 is located at the connection between the telescopic rod 101 and the cylinder body 1 A sponge ring 9 is provided, and a connecting block 10 is fixedly installed at both ends of the sponge ring 9. The ends of the connecting blocks 10 that are away from each other are slidably installed on the inner wall of the lubrication box 2. A spring 2 11 is fixedly installed at the lower end of the front connecting block 10. The lower end of the spring 2 11 is fixedly connected to the inner wall of the lubrication box 2. A driving rod 12 is fitted on the upper end of the connecting block 10 corresponding to the front side of the front side on the front side of the lubrication box 2. The driving rod 12 is slidably installed on the front end of the lubrication box 2, and a pressure strip 13 is provided on the upper side of the driving rod 12 , the front end of the pressure strip 13 is fixedly connected to the oblique block piston rod 6, and an extrusion ring 15 is symmetrically slidably installed on the left end of the lubrication box 2 corresponding to the sponge ring 9, and a magnetic block 16 is fixedly installed on the lower side of the front extrusion ring 15, and a magnetic block 2 17 is fixedly installed on the right end of the front connection block 10 corresponding to the magnetic block 16, and racks 18 are fixedly installed on the lower sides of the extrusion rings 15 on both sides close to each other, and gears 19 are meshed between the racks 18, and the gears 19 are rotatably installed on the inner wall of the lubrication box 2;

[0043] During operation, when the telescopic rod 101 is telescopically extended in the cylinder body 1, the top bar rod 8 will be driven to move synchronously, and the top bar rod 8 will squeeze and push the inclined block piston rod 6 to move downward, compressing the spring 17, and the inclined block piston rod 6 pushes the lubricating oil in the oil storage barrel 4 into the lubrication box 2 through the oil delivery pipe 5, and the lubricating oil drips evenly on both sides of the upper part of the sponge ring 9 through the uniform plate 14, and the lubricating oil gradually penetrates into various positions of the sponge ring 9, and then evenly adheres to the connection between the telescopic rod 101 and the cylinder body 1, which is beneficial to lubricate the connection between the telescopic rod 101 and the cylinder body 1, and prolongs the service life of the oil cylinder. The excess lubricating oil in the sponge ring 9 will drip The oil in the oil storage tank 4 is automatically filled with lubricating oil, and the lubricating oil can be recycled without manual operation, which is simple and convenient, and improves the lubrication efficiency. When the inclined block piston rod 6 descends, the inclined block piston rod 6 reciprocates up and down, which drives the pressure strip 13 to move up and down synchronously. When the pressure strip 13 moves downward, it squeezes the driving rod 12, and the driving rod 12 slides downward, squeezing the connecting block 10. The connecting block 10 drives the sponge ring 9 to rotate on the surface of the telescopic rod 101, compressing the spring 11. At the same time, the connecting block 10 on the other side also slides inside the lubrication box 2, and the spring 11 is compressed. 1 plays the role of resetting the sponge ring 9. The reciprocating rotation of the sponge ring 9 is conducive to evenly applying the lubricating oil to the connection between the telescopic rod 101 and the cylinder body 1, thereby improving the lubrication quality. When the connecting block 10 slides downward, it will also drive the second magnetic block 17 to slide downward synchronously. When the second magnetic block 17 moves to the side close to the first magnetic block 16, it generates a magnetic repulsive force on the first magnetic block 16, pushing the front extrusion ring 15 and the rack 18 to slide backward, driving the gear 19 to rotate, and the gear 19 drives the rear rack 18 to make the rear extrusion ring 15 move forward (the extrusion rings 15 on both sides move relative to each other), thereby squeezing the sponge ring 9, thereby helping to remove the sea The lubricating oil in the sponge ring 9 is squeezed evenly, so that the lubricating oil can evenly penetrate into each position of the sponge ring 9. At the same time, it is also beneficial to squeeze the lubricating oil in the sponge ring 9 onto the surface of the telescopic rod 101, ensuring the lubrication effect. The filter plate 20 is arranged to filter the excess lubricating oil in the sponge ring 9 to prevent foreign impurities from adhering to the lubricating oil on the surface of the telescopic rod 101 when the telescopic rod 101 is extended outward. When recycling, the lubricating oil blocks the return pipe 3, the oil storage barrel 4 and the oil delivery pipe 5, thereby ensuring the normal reflux and circulation of the lubricating oil, ensuring normal lubrication work, and reducing the situation where it is difficult to clean the blockage manually.

[0044] An anti-clogging mechanism is also provided for preventing the reflux pipe 3 from being blocked, and the anti-clogging mechanism includes a filter plate 20 slidably installed on the right end of the lubrication box 2, and anti-clogging plates 21 are abutted and fitted on both the front and rear sides of the upper end of the filter plate 20, and a fixing plate 22 is slidably installed on the upper end of the anti-clogging plate 21, and the left end of the fixing plate 22 is respectively fixedly connected to the extrusion rings 15 on both sides, and a guide rod 23 is fixedly installed on the left side of the upper end of the anti-clogging plate 21, and an inclined slot plate 24 is slidably installed on the upper side of the guide rod 23, and the left end of the inclined slot plate 24 is fixedly connected to the inner wall of the lubrication box 2, and a limit block 25 is slidably installed on the right end of the lubrication box 2 corresponding to the filter plate 20, and a spring three 26 is fixedly installed on the lower end of the limit block 25, and a cross plate 27 is fixedly installed on the lower end of the spring three 26, and the cross plate 27 is fixedly installed on the right end of the lubrication box 2;

[0045] During operation, when the extrusion rings 15 on both sides move relative to each other, the fixed plates 22 and the anti-blocking plates 21 on both sides will also be driven to move relative to each other. The anti-blocking plates 21 are arranged to facilitate the centralized scraping of impurities accumulated on the surface of the filter plate 20, thereby reducing the situation where the filter plate 20 is completely blocked by impurities, resulting in the inability of the lubricating oil to pass through the filter plate 20 smoothly, thereby ensuring the smooth progress of the lubrication work. When the anti-blocking plates 21 on both sides are close to each other, under the action of the guide rods 23 and the inclined slot plates 24, the anti-blocking plates 21 will be driven to move along the inclined slots of the inclined slot plates 24, and the anti-blocking plates 21 on both sides will gradually move on the fixed plates 22. The dislocation movement is beneficial to squeezing the impurities concentrated on the middle part of the filter plate 20, kneading and squeezing out the excess lubricating oil in the impurities, saving the cost of the lubricating oil, avoiding the situation where the lubricating oil is mixed in the impurities for a long time and cannot be recycled, and also avoiding the situation where the lubricating oil in the impurities is difficult to separate when the impurities are subsequently cleaned. The limit block 25 is pushed downward to compress the spring three 26, and the limit block 25 is separated from the filter plate 20, so that the filter plate 20 can be directly drawn out of the lubrication box 2, which is convenient for centralized cleaning of the impurities on the filter plate 20 and the smooth operation of the lubricating oil.

[0046] Working principle:

[0047] When the present invention is in use, when the telescopic rod 101 is telescopically extended in the cylinder body 1, it will drive the top bar 8 to move synchronously, and the top bar 8 will squeeze and push the inclined block piston rod 6 to move downward, compressing the spring 7, and the inclined block piston rod 6 pushes the lubricating oil in the oil storage barrel 4 into the lubrication box 2 through the oil delivery pipe 5, and the lubricating oil drips evenly on both sides of the upper part of the sponge ring 9 through the uniform plate 14, and the lubricating oil gradually penetrates into various positions of the sponge ring 9, and then evenly adheres to the connection between the telescopic rod 101 and the cylinder body 1, which is beneficial to lubricate the connection between the telescopic rod 101 and the cylinder body 1, and improves the service life of the oil cylinder. The excess lubricating oil in the sponge ring 9 will drip to the inner lower side of the lubrication box 2, and flow back to the oil storage barrel 4 through the reflux pipe 3 again, completing the lubrication of the lubricating oil in the oil storage barrel 4. Automatic oiling, the lubricating oil can be recycled, no manual operation is required, it is simple and convenient, and the lubrication efficiency is improved. When the inclined block piston rod 6 descends, the inclined block piston rod 6 reciprocates up and down, which will drive the pressure strip 13 to move up and down synchronously. When the pressure strip 13 moves downward, it will squeeze the driving rod 12, and the driving rod 12 will slide downward to squeeze the connecting block 10. The connecting block 10 drives the sponge ring 9 to rotate on the surface of the telescopic rod 101 and compress the spring 2 11. At the same time, the connecting block 10 on the other side will also slide inside the lubrication box 2. The spring 2 11 plays the role of resetting the sponge ring 9. The reciprocating rotation of the sponge ring 9 is conducive to evenly applying the lubricating oil to the connection between the telescopic rod 101 and the cylinder body 1, thereby improving the lubrication quality. When the connecting block 10 slides downward, it will also drive the magnetic block 2 17 to move synchronously. Sliding downward, when the second magnetic block 17 moves to the side close to the first magnetic block 16, a magnetic repulsion force is generated on the first magnetic block 16, pushing the front extrusion ring 15 and the rack 18 to slide backward, driving the gear 19 to rotate, and the gear 19 drives the rack 18 on the rear side to make the extrusion ring 15 on the rear side move forward (the extrusion rings 15 on both sides are in relative motion), squeezing the sponge ring 9, which is conducive to evenly squeezing the lubricating oil in the sponge ring 9, so that the lubricating oil can evenly penetrate into various positions of the sponge ring 9. At the same time, it is also conducive to squeezing the lubricating oil in the sponge ring 9 onto the surface of the telescopic rod 101, ensuring the lubrication effect. The filter plate 20 is arranged to facilitate filtering the excess lubricating oil in the sponge ring 9 to prevent foreign impurities from adhering to the telescopic rod when the telescopic rod 101 is extended outward. When the lubricating oil on the surface of 101 is recovered, the lubricating oil blocks the return pipe 3, the oil storage barrel 4 and the oil delivery pipe 5, which ensures the normal reflux and circulation of the lubricating oil, ensures the normal lubrication work, and reduces the situation where it is difficult to clean the blockage manually. When the extrusion rings 15 on both sides move relative to each other, the fixed plates 22 and the anti-blocking plates 21 on both sides will also be driven to move relative to each other. The anti-blocking plates 21 are arranged to facilitate the centralized scraping of impurities accumulated on the surface of the filter plate 20, reducing the situation where the impurities completely block the filter plate 20, resulting in the lubricating oil being unable to pass through the filter plate 20 smoothly, ensuring the smooth progress of the lubrication work. When the anti-blocking plates 21 on both sides are close to each other, under the action of the guide rod 23 and the inclined slot plate 24, the anti-blocking plates 21 will be driven to move along the inclined slot of the inclined slot plate 24.The anti-clogging plates 21 on both sides will gradually move in an offset manner on the fixed plate 22, which is conducive to squeezing out the impurities concentrated on the middle part of the filter plate 20, kneading and squeezing out the excess lubricating oil in the impurities, saving the cost of lubricating oil, avoiding the situation where the lubricating oil is mixed in the impurities for a long time and cannot be recycled, and also avoiding the situation where the lubricating oil in the impurities is difficult to separate when the impurities are subsequently cleaned. Push the limit block 25 downward, compress the spring three 26, and the limit block 25 is separated from the filter plate 20, so that the filter plate 20 can be directly drawn out of the lubrication box 2, which is convenient for centralized cleaning of the impurities on the filter plate 20 and the smooth operation of the lubricating oil.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An improved steering power cylinder, comprising a cylinder body (1), characterized in that: The right end of the cylinder body (1) is provided with a telescopic rod (101), the upper end of the cylinder body (1) is provided with a small cylinder barrel (102), and the left and right sides of the rear end of the cylinder body (1) are provided with oil inlet and outlet pipes (103); A lubrication mechanism for lubricating the connection between the cylinder body (1) and the telescopic rod (101) is also provided, the lubrication mechanism comprising a lubrication box (2) fixedly mounted on the right end of the cylinder body (1), the lower end of the lubrication box (2) being connected to a return pipe (3), the other end of the return pipe (3) being connected to an oil storage barrel (4), the lower end of the oil storage barrel (4) being fixedly connected to the lubrication box (2), an oil delivery pipe (5) being connected to the lower side of the oil storage barrel (4), the other end of the oil delivery pipe (5) being fixedly connected to the upper end of the lubrication box (2), and a uniform plate (14) being fixedly provided on the lower side of the oil delivery pipe (5) corresponding to the inner upper side of the lubrication box (2); An anti-clogging mechanism is also provided for preventing the return pipe (3) from being blocked. The anti-clogging mechanism comprises a filter plate (20) slidably mounted on the right end of the lubrication box (2), and an anti-clogging plate (21) is provided on both the front and rear sides of the upper end of the filter plate (20) to abut against and fit against the filter plate (21).

2. The improved steering power cylinder according to claim 1, characterized in that: A tilting block piston rod (6) is slidably mounted on the upper end of the oil storage barrel (4), a spring (7) is sleeved on the outer side of the tilting block piston rod (6), a top bar (8) is arranged on the upper side of the tilting block piston rod (6), and the top bar (8) is fixedly connected to the right end of the telescopic rod (101).

3. The improved steering power cylinder according to claim 1, characterized in that: A sponge ring (9) is sleeved inside the lubrication box (2) at the connection between the telescopic rod (101) and the cylinder body (1), and connection blocks (10) are fixedly installed at both the front and rear ends of the sponge ring (9).

4. The improved steering power cylinder according to claim 3, characterized in that: The ends of the connecting blocks (10) that are away from each other are slidably mounted on the inner wall of the lubrication box (2), and a second spring (11) is fixedly mounted on the lower end of the front connecting block (10), and the lower end of the second spring (11) is fixedly connected to the inner wall of the lubrication box (2).

5. The improved steering power cylinder according to claim 1, characterized in that: A driving rod (12) is fitted on the upper end of the connecting block (10) corresponding to the front side on the front side of the lubrication box (2). The driving rod (12) penetrates and is slidably installed on the front end of the lubrication box (2). A pressure strip (13) is provided on the upper side of the driving rod (12). The front end of the pressure strip (13) is fixedly connected to the piston rod (6) of the inclined block.

6. The improved steering power cylinder according to claim 1, characterized in that: An extrusion ring (15) is symmetrically slidably mounted on the left end of the lubrication box (2) corresponding to the sponge ring (9) in the front and rear directions, a magnetic block 1 (16) is fixedly mounted on the lower side of the front extrusion ring (15), and a magnetic block 2 (17) is fixedly mounted on the right end of the front connection block (10) corresponding to the magnetic block 1 (16).

7. The improved steering power cylinder according to claim 6, characterized in that: Racks (18) are fixedly mounted on the lower sides of the extrusion rings (15) at one end close to each other, gears (19) are meshed between the racks (18), and the gears (19) are rotatably mounted on the inner wall of the lubrication box (2).

8. The improved steering power cylinder according to claim 1, characterized in that: A fixing plate (22) is slidably mounted on the upper end of the anti-clogging plate (21), and the left end of the fixing plate (22) is fixedly connected to the extrusion rings (15) on both sides.

9. The improved steering power cylinder according to claim 1, characterized in that: A guide rod (23) is fixedly installed on the left side of the upper end of the anti-clogging plate (21), and an inclined slot plate (24) is slidably installed through the upper side of the guide rod (23), and the left end of the inclined slot plate (24) is fixedly connected to the inner wall of the lubrication box (2).

10. The improved steering power cylinder according to claim 1, characterized in that: A limit block (25) is slidably mounted on the right end of the lubrication box (2) corresponding to the filter plate (20); a spring three (26) is fixedly mounted on the lower end of the limit block (25); a transverse plate (27) is fixedly mounted on the lower end of the spring three (26); and the transverse plate (27) is fixedly mounted on the right end of the lubrication box (2).

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