Hydraulic oil cylinder piston assembly capable of preventing single-side abrasion

Abstract

The utility model discloses a hydraulic oil cylinder piston assembly capable of preventing single-side abrasion, which relates to the field of hydraulic oil cylinder piston assemblies and comprises a hydraulic oil cylinder barrel, one side of the hydraulic oil cylinder barrel is in threaded connection with a flange, the other side of the flange is fixedly provided with a cylinder cover, a piston rod penetrates through the inside of the cylinder cover, and one end of the piston rod is inserted into the hydraulic oil cylinder barrel. Two piston bodies are fixedly mounted on one side of the hydraulic oil cylinder barrel; sliding grooves are formed in the two sides of the inner wall of the hydraulic oil cylinder barrel. Through the arrangement of the sliding rod, the sliding groove and the spring, the moving stability of the piston rod can be improved, the single-side abrasion phenomenon caused by the deviation condition is avoided, through the arrangement of the sponge cushion, the piston rod can be prevented from being coated with lubricating oil, the lubricating effect is achieved, the abrasion condition caused by the movement of the piston rod is reduced, and the single-side abrasion is effectively prevented; the lubricating effect of the piston rod is further improved, and the single-side abrasion phenomenon is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinder piston components, in particular to a hydraulic oil cylinder piston component which can prevent unilateral wear. Background Art

[0002] The hydraulic cylinder piston assembly is the main working part of a large horizontal cylinder. It is usually composed of the piston itself, the piston rod, the piston seal and the connection with other components. By controlling the movement of the piston, the required working process can be achieved.

[0003] For example, the announcement number CN213270537U discloses a wear-resistant hydraulic cylinder, including a hydraulic cylinder body, the hydraulic cylinder body including a cylinder body, a piston, a piston rod, a sleeve and a cylinder cover, the piston is arranged inside the cylinder body, and a first wear-resistant component is arranged between the piston and the cylinder body, one end of the piston abuts against the cylinder bottom of the cylinder body, and a positioning column is symmetrically arranged on the other end of the piston, one end of the piston rod is fixedly connected to the piston, the sleeve is sleeved on the outside of the piston rod, and a positioning groove is symmetrically arranged on the end of the sleeve close to the piston, a second wear-resistant component is arranged between the sleeve and the piston rod, and the cylinder cover and A guide cylinder is arranged between the sliding sleeves. The hydraulic cylinder improves the wear resistance of the hydraulic cylinder by arranging a first wear-resistant component, a second wear-resistant component, a third wear-resistant plate and a guide cylinder, and at the same time improves the stability and service life of the hydraulic cylinder. However, there are other shortcomings when the hydraulic cylinder is in use. First of all, the hydraulic cylinder mentions that a wear-resistant plate is installed on the inner wall of the cylinder body to increase the wear resistance of the piston and the inner wall in the cylinder body. The addition of the wear-resistant plate will hinder the smoothness of the sliding of the piston, thereby affecting the telescopic performance of the hydraulic cylinder, and the effect of preventing unilateral wear is not good. Therefore, there are still certain shortcomings when using the device. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic cylinder piston assembly that is resistant to unilateral wear, so as to solve the problem raised in the above-mentioned background technology that when the hydraulic cylinder piston assembly on the current market is in use, firstly, a wear-resistant plate is installed on the inner wall of the cylinder body of the hydraulic cylinder, so as to increase the wear resistance of the piston and the inner wall in the cylinder body, and the addition of the wear-resistant plate will hinder the smoothness of the sliding of the piston, thereby affecting the telescopic performance of the hydraulic cylinder, thereby resulting in a poor effect in preventing unilateral wear.

[0005] To achieve the above object, the utility model provides the following technical solution: a hydraulic oil cylinder piston assembly for preventing unilateral wear, comprising a hydraulic oil cylinder barrel, one side of the hydraulic oil cylinder barrel is threadedly connected with a flange, the other side of the flange is fixedly installed with a cylinder cover, the cylinder cover has a piston rod running through the inside and one end is inserted into the hydraulic oil cylinder barrel, and one side of the hydraulic oil cylinder barrel is fixedly installed with two piston bodies;

[0006] Slide grooves are provided on both sides of the inner wall of the hydraulic oil cylinder barrel, a connecting block is fixedly connected between the two piston bodies, a slide rod is fixedly installed on both sides of the connecting block and one end thereof passes through the slide groove, and a spring is fixedly installed on the inner wall of the slide groove;

[0007] An oil storage box is sleeved on the inner wall of one side of the hydraulic oil cylinder barrel, and a plurality of oil outlet holes are opened on the inner wall of the oil storage box. Three through holes are symmetrically opened on the inner walls on the upper and lower sides of the oil storage box. An oil inlet pipe is fixedly installed on the top of one side of the hydraulic oil cylinder barrel and the bottom end passes through the oil storage box.

[0008] Furthermore, a telescopic rod passes through the through hole, a pressing plate is fixedly connected to the bottom of the telescopic rod, and a sponge pad is fixedly installed on the top of the telescopic rod.

[0009] Furthermore, a card slot is symmetrically opened inside one side of the cylinder head, a mounting ring plate is sleeved inside the card slot, an oil-absorbing cotton pad is fixedly installed on one side of the mounting ring plate, and a fixing plate is fixedly connected to the other side of the mounting ring plate, five positioning bolts pass through the inside of the fixing plate and the ends are inserted into the cylinder head.

[0010] Furthermore, the slide bar and the slide slot are slidably connected, and the two ends of the spring are tightly fitted to the slide bar and the inner wall of the slide slot.

[0011] Furthermore, the oil storage box is integrated with the oil outlet hole and the through hole, and the oil storage box is configured as a circular ring structure.

[0012] Furthermore, the pressing plate and the oil storage box are movably connected, and the pressing plate and the oil storage box are matched.

[0013] Furthermore, the mounting ring plate and the slot are detachably connected, the mounting ring plate and the oil-absorbing cotton pad are tightly fitted, and the oil-absorbing cotton pad is configured as a semi-arc structure.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The hydraulic cylinder piston assembly for preventing unilateral wear can increase the stability of the piston rod movement by setting a slide bar, a slide groove and a spring, avoid the unilateral wear caused by the offset, and set a sponge pad to lubricate the piston rod to avoid lubricating oil, reduce the wear caused by the movement of the piston rod, effectively prevent unilateral wear, and set two oil-absorbing cotton pads to further increase the lubrication effect of the piston rod and improve the unilateral wear phenomenon. The specific contents are shown as follows:

[0016] 1. Slide rods, slide grooves and springs are provided. When the piston rod in the hydraulic oil cylinder starts to work, the piston rod moves back and forth in the hydraulic oil cylinder and the cylinder head, driving the connecting blocks connected in the two piston bodies to move simultaneously. The connecting blocks drive the two slide rods to slide in the corresponding slide grooves, so that each slide rod stretches or squeezes the spring while moving, thereby increasing the stability of the piston rod movement and avoiding the unilateral wear caused by the deviation;

[0017] 2. A sponge pad is provided. During the movement of the piston rod, the upper and lower sponge pads are passed through, and the sponge pads are squeezed at the same time, so that the sponge pad drives the connected telescopic rods to move downward through the corresponding through holes, so that the connected pressing plates are driven by the telescopic rods to move downward in the oil storage box. During the downward movement of the pressing plates, the lubricating oil in the corresponding oil storage box is squeezed upward, so that the lubricating oil is squeezed out through the oil outlet holes and rubbed on the surface of the piston rod through the sponge pad, thereby lubricating the piston rod, reducing the wear caused by the movement of the piston rod, and effectively preventing unilateral wear;

[0018] Furthermore, an oil inlet pipe is provided, and the staff manually adds the lubricating liquid into the oil storage box through the oil inlet pipe, so that the oil storage box is filled with lubricating oil;

[0019] 3. Two oil-absorbing cotton pads are provided. The two oil-absorbing cotton pads in the ring plate are used together. The oil-absorbing cotton pads are made of sponge. The piston rod moves through the upper and lower sponge pads and then enters the cylinder head through the left and right oil-absorbing cotton pads. At the same time, each oil-absorbing cotton pad is squeezed so that the lubricating oil in the oil-absorbing cotton pad flows to the surface of the piston rod, thereby further increasing the lubrication effect of the piston rod and improving the phenomenon of unilateral wear.

[0020] Furthermore, positioning bolts are provided, and by manually pulling out the positioning bolts from the cylinder head, the fixing plate drives the mounting ring plate to move outward and out of the slot, thereby removing the oil-absorbing cotton pad in the mounting ring plate, adding lubricating oil or replacing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 This is a side view of the structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0024] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the hydraulic oil cylinder and oil storage box of the utility model;

[0025] Figure 5 This is a partial structural diagram of the oil storage box of the utility model;

[0026] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the cylinder head and the mounting ring plate of the utility model;

[0027] Figure 7 It is a schematic diagram of the partial disassembled structure of the cylinder head and the mounting ring plate of the utility model.

[0028] In the figure: 1. hydraulic cylinder barrel; 2. flange; 3. cylinder head; 4. piston rod; 5. piston body; 6. connecting block; 7. slide rod; 8. slide groove; 9. spring; 10. oil storage box; 11. oil outlet hole; 12. through hole; 13. telescopic rod; 14. pressure plate; 15. sponge pad; 16. slot; 17. mounting ring plate; 18. oil-absorbing cotton pad; 19. positioning bolt; 20. oil inlet pipe; 21. fixing plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0031] Embodiment 1:

[0032] In order to solve the problem that the hydraulic cylinder piston assembly on the market is in use, the hydraulic cylinder first installs a wear-resistant plate on the inner wall of the cylinder body to increase the wear resistance of the piston and the inner wall in the cylinder body. However, the addition of the wear-resistant plate will hinder the smooth sliding of the piston, thereby affecting the telescopic performance of the hydraulic cylinder, thereby preventing the problem of poor effect of unilateral wear. Please refer to the attached Figure 1 -Attached Figure 3, including a hydraulic cylinder barrel 1, a flange 2 is threadedly connected to one side of the hydraulic cylinder barrel 1, a cylinder cover 3 is fixedly installed on the other side of the flange 2, a piston rod 4 is penetrated inside the cylinder cover 3 and one end is inserted into the hydraulic cylinder barrel 1, and two piston bodies 5 are fixedly installed on one side of the hydraulic cylinder barrel 1; slide grooves 8 are opened on both sides of the inner wall of the hydraulic cylinder barrel 1, a connecting block 6 is fixedly connected in the middle of the two piston bodies 5, sliding rods 7 are fixedly installed on both sides of the connecting block 6 and one end penetrates the slide groove 8, and a spring 9 is fixedly installed on the inner wall of the slide groove 8; the sliding rod 7 and the slide groove 8 are slidably connected, and the two ends of the spring 9 are tightly fitted with the sliding rod 7 and the inner wall of the slide groove 8. When the piston rod 4 in the hydraulic cylinder 1 starts to work, the piston rod 4 drives the connecting blocks 6 connected in the two piston bodies 5 to move simultaneously during the process of moving back and forth in the hydraulic cylinder 1 and the cylinder cover 3, so that the connecting blocks 6 drive the two sliding rods 7 to slide in the corresponding sliding grooves 8, so that each sliding rod 7 stretches or squeezes the spring 9 while moving, thereby increasing the stability of the movement of the piston rod 4 and avoiding unilateral wear caused by offset.

[0033] Embodiment 2:

[0034] Lubricating oil can be added to the surface of the piston rod 4 to lubricate it, reduce the wear caused by the movement of the piston rod 4, and effectively prevent unilateral wear. Please refer to the attached Figure 1 -Attached Figure 5 The inner wall of one side of the hydraulic oil cylinder 1 is sleeved with an oil storage box 10, and a plurality of oil outlet holes 11 are opened on the inner wall of the oil storage box 10. Three through holes 12 are symmetrically opened on the inner walls of the upper and lower sides of the oil storage box 10. An oil inlet pipe 20 is fixedly installed on the top of one side of the hydraulic oil cylinder 1, and the bottom end passes through the oil storage box 10. A telescopic rod 13 passes through the inside of the through hole 12, and a pressure plate 14 is fixedly connected to the bottom of the telescopic rod 13, and a sponge pad 15 is fixedly installed on the top of the telescopic rod 13. The oil storage box 10 is integrated with the oil outlet hole 11 and the through hole 12, and the oil storage box 10 is set as a circular ring structure. The pressure plate 14 and the oil storage box 10 are movably connected, and the pressure plate 14 and the oil storage box 10 are matched. Before the movement of the piston rod 4, the staff manually adds the lubricating liquid into the oil storage box 10 through the oil inlet pipe 20, so that the oil storage box 10 is filled with lubricating oil. During the movement of the piston rod 4, it passes through the upper and lower sponge pads 15, and at the same time, each sponge pad 15 is squeezed, so that the sponge pad 15 drives the connected telescopic rods 13 to move downward through the corresponding through holes 12, so that each telescopic rod 13 drives the connected pressure plate 14 to move downward in the oil storage box 10. During the downward movement of each pressure plate 14, the lubricating oil in the corresponding oil storage box 10 is squeezed upward, so that the lubricating oil is squeezed out through the oil outlet holes 11, passes through the sponge pad 15, and is rubbed on the surface of the piston rod 4, thereby lubricating the piston rod 4, reducing the wear caused by the movement of the piston rod 4, and effectively preventing unilateral wear.

[0035] Embodiment three:

[0036] It can further increase the lubrication effect of the piston rod 4, improve the phenomenon of unilateral wear, and further increase the effect of preventing air scale. Figure 1 -Attached Figure 3 and attached Figure 6 -Attached Figure 7 A slot 16 is symmetrically provided inside one side of the cylinder head 3, a mounting ring plate 17 is sleeved inside the slot 16, an oil-absorbing cotton pad 18 is fixedly installed on one side of the mounting ring plate 17, a fixing plate 21 is fixedly connected to the other side of the mounting ring plate 17, five positioning bolts 19 are passed through the fixing plate 21 and the ends are inserted into the cylinder head 3. The mounting ring plate 17 and the slot 16 are detachably connected, and the mounting ring plate 17 and the oil-absorbing cotton pad 18 are tightly fitted, and the oil-absorbing cotton pad 18 is set to a semi-arc structure. By cooperating with the two oil-absorbing cotton pads 18 in the mounting ring plate 17, the oil-absorbing cotton pads 18 are made of sponge, so that the piston rod 4 moves through the upper and lower sponge pads 15 and then enters the cylinder head 3 to pass through the left and right oil-absorbing cotton pads 18. At the same time, each oil-absorbing cotton pad 18 is squeezed to make the lubricating oil in the oil-absorbing cotton pad 18 flow to the surface of the piston rod 4, thereby further increasing the lubrication effect of the piston rod 4 and improving the phenomenon of unilateral wear. By manually pulling out each positioning bolt 19 from the cylinder head 3, the fixing plate 21 drives the mounting ring plate 17 to move outward and disengage from the slot 16, so that the oil-absorbing cotton pad 18 in the mounting ring plate 17 can be disassembled, lubricated or replaced.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic oil cylinder piston assembly for preventing unilateral wear, comprising a hydraulic oil cylinder barrel (1), one side of the hydraulic oil cylinder barrel (1) being threadedly connected to a flange (2), the other side of the flange (2) being fixedly mounted to a cylinder head (3), the interior of the cylinder head (3) being penetrated by a piston rod (4) and one end of which is inserted into the hydraulic oil cylinder barrel (1), and one side of the hydraulic oil cylinder barrel (1) being fixedly mounted to two piston bodies (5); Features: Slide grooves (8) are provided on both sides of the inner wall of the hydraulic cylinder barrel (1); a connecting block (6) is fixedly connected between the two piston bodies (5); slide rods (7) are fixedly installed on both sides of the connecting block (6) and one end thereof passes through the slide groove (8); a spring (9) is fixedly installed on the inner wall of the slide groove (8); An oil storage box (10) is sleeved on the inner wall of one side of the hydraulic oil cylinder barrel (1), a plurality of oil outlet holes (11) are opened on the inner wall of the oil storage box (10), three through holes (12) are symmetrically opened on the inner walls of the upper and lower sides of the oil storage box (10), and an oil inlet pipe (20) is fixedly installed on the top of one side of the hydraulic oil cylinder barrel (1) and the bottom end passes through the oil storage box (10).

2. The hydraulic cylinder piston assembly for preventing unilateral wear according to claim 1, characterized in that: A telescopic rod (13) passes through the through hole (12); a pressing plate (14) is fixedly connected to the bottom of the telescopic rod (13); and a sponge pad (15) is fixedly mounted on the top of the telescopic rod (13).

3. The hydraulic cylinder piston assembly for preventing unilateral wear according to claim 1, characterized in that: A clamping groove (16) is symmetrically provided inside one side of the cylinder head (3), a mounting ring plate (17) is sleeved inside the clamping groove (16), an oil-absorbing cotton pad (18) is fixedly mounted on one side of the mounting ring plate (17), and a fixing plate (21) is fixedly connected to the other side of the mounting ring plate (17), and five positioning bolts (19) are passed through the fixing plate (21) and the ends thereof are inserted into the cylinder head (3).

4. The hydraulic oil cylinder piston assembly for preventing unilateral wear according to claim 1, characterized in that: The slide bar (7) and the slide groove (8) are slidably connected, and the two ends of the spring (9) are tightly fitted to the slide bar (7) and the inner wall of the slide groove (8).

5. The hydraulic oil cylinder piston assembly for preventing unilateral wear according to claim 1, characterized in that: The oil storage box (10) is integrally arranged with the oil outlet hole (11) and the through hole (12), and the oil storage box (10) is arranged in a circular ring structure.

6. The hydraulic oil cylinder piston assembly for preventing unilateral wear according to claim 2, characterized in that: The pressing plate (14) and the oil storage box (10) are movably connected, and the pressing plate (14) and the oil storage box (10) are matched.

7. The hydraulic oil cylinder piston assembly for preventing unilateral wear according to claim 3, characterized in that: The mounting ring plate (17) and the clamping groove (16) are detachably connected, the mounting ring plate (17) and the oil-absorbing cotton pad (18) are tightly fitted, and the oil-absorbing cotton pad (18) is configured as a semi-arc structure.

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