Wear-resistant hydraulic oil cylinder body

Abstract

The utility model discloses a wear-resistant hydraulic oil cylinder body which comprises a rear end connecting base arranged at one end of the cylinder body, a front end sealing cover is arranged at the other end of the cylinder body, and a piston piece is arranged in the cylinder body. The step sealing ring is arranged outside the piston piece, the step sealing ring is attached to the inner wall of the cylinder body, an upper oil port and a lower oil port are formed in the cylinder body, and a first oil conveying pipeline and a second oil conveying pipeline are arranged on one side of the upper oil port and one side of the lower oil port correspondingly; a first filter cartridge and a second filter cartridge are arranged on the first oil conveying pipeline and the second oil conveying pipeline respectively, a sealing structure is arranged at an end opening of the cylinder body, external dust can be prevented from entering the cylinder body, conveyed hydraulic oil is filtered through the first filter cartridge and the second filter cartridge, impurities in the hydraulic oil are filtered out, and the service life of the hydraulic oil is prolonged. Impurities are effectively prevented from adhering to the inner wall of the cylinder body, friction abrasion between the piston and the inner wall of the cylinder body is reduced, and the service life of the hydraulic oil cylinder body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a wear-resistant hydraulic oil cylinder body. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion. It is widely used in the hydraulic systems of various machines. The output force of a hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure differential across it. A hydraulic cylinder essentially consists of a barrel and head, a piston and rod, a seal, a buffer, and an exhaust system. As a key component in products such as hydraulic cylinders, mining single-piece supports, hydraulic supports, and gun barrels, the quality of its machining directly impacts the lifespan and reliability of the entire product. Long-term operation will cause increasing wear on the cylinder's inner wall, shortening the cylinder's service life.

[0003] The Chinese patent publication number is CN218913336U, and the authorization announcement date is April 25, 2023. A wear-resistant hydraulic cylinder body includes a hydraulic cylinder with a telescopic column extending therethrough. The invention is characterized in that collection grooves are respectively formed at both ends of the inner side of the hydraulic cylinder, and reinforcement sleeves are respectively installed at both ends of the outer side of the hydraulic cylinder. When the telescopic column is extended and retracted, the hydraulic oil in the hydraulic cylinder moves. When particulate debris contained in the hydraulic oil moves to the position of the collection groove, the particulate debris can be temporarily stored in the collection groove under the adsorption action of a magnet. This can prevent the particulate debris from causing wear and damage to the telescopic column during its movement along the hydraulic cylinder, thereby extending the service life of the device. Furthermore, the reinforcement sleeve is fixed in position by a limit bar embedded in a groove formed on the outer surface of the hydraulic cylinder, providing strong stability. This not only increases the stability of the hydraulic cylinder, but also prevents leakage of the hydraulic cylinder due to the thinning of the cylinder wall due to the collection groove.

[0004] The solid impurities in the hydraulic oil used in existing hydraulic cylinders will gradually increase, and the impurities will easily stick to the inner wall of the cylinder. The friction between the piston and the inner wall of the cylinder will increase when they are in contact with each other, causing wear on the inner wall of the cylinder, resulting in the cylinder becoming thinner, cracking, and leaking oil, reducing the service life of the cylinder and failing to meet usage requirements. Utility Model Content

[0005] The purpose of the present utility model is to provide a wear-resistant hydraulic cylinder body to solve the problem raised in the above background technology that the solid impurities in the hydraulic oil used in the existing hydraulic cylinder will gradually increase, the impurities are easy to stick to the inner wall of the cylinder body, the friction between the piston and the inner wall of the cylinder body increases when the piston is in telescopic contact, which will cause wear on the inner wall of the cylinder body, resulting in the cylinder body becoming thinner, cracking and leaking oil, reducing the service life of the cylinder body, and failing to meet the use requirements.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wear-resistant hydraulic cylinder body, comprising a cylinder body, and further comprising:

[0007] A rear end connecting seat is provided at one end of the cylinder body, a front end cover is provided at the other end of the cylinder body, a piston is provided inside the cylinder body, and the piston is slidably connected to the cylinder body;

[0008] A Ster sealing ring is arranged on the outside of the piston member, and the Ster sealing ring is connected to the piston member as a whole. The Ster sealing ring fits against the inner wall of the cylinder body. The cylinder body is provided with an upper oil port and a lower oil port, and the upper oil port and the lower oil port are arranged at both ends of the cylinder body. A first oil pipeline and a second oil pipeline are provided on one side of the upper oil port and the lower oil port, and the first oil pipeline and the second oil pipeline are connected to the cylinder body as a whole. A first filter cartridge and a second filter cartridge are respectively provided on the first oil pipeline and the second oil pipeline, and the first filter cartridge and the second filter cartridge are respectively connected to the first oil pipeline and the second oil pipeline as a whole.

[0009] Preferably, a filter core is provided inside each of the first filter cartridge and the second filter cartridge, and the filter core is connected to the first filter cartridge and the second filter cartridge as a whole.

[0010] Preferably, a Gly seal ring is provided inside the front end of the front end cover, and the Gly seal ring is connected to the front end cover as a whole.

[0011] Preferably, a buffer plate is provided inside the cylinder body, and the buffer plate is movably connected to the cylinder body, the buffer plate is provided on one side of the piston member, a compression spring is provided on one side of the buffer plate, and both ends of the compression spring are fixedly connected to the rear end connecting seat and the buffer plate respectively.

[0012] Preferably, a protrusion is provided on one side of the center of the buffer disk, and the protrusion is integrated with the buffer disk. A slot is provided at the center of one end of the piston, and the slot is corresponding to the protrusion.

[0013] Preferably, the buffer tray is provided with six through holes, and the six through holes are equidistantly arranged on the buffer tray.

[0014] Preferably, balls are provided on the outer wall of the buffer tray, and there are six balls, which are equidistantly arranged on the outer wall of the buffer tray. The balls fit into the inner wall of the cylinder body, and the balls are rollingly connected to the cylinder body and the buffer tray.

[0015] Preferably, raised connecting rings are provided inside both ends of the cylinder body, two raised connecting rings are provided, and the raised connecting rings and the cylinder body are integrated, the raised connecting rings are clamped with the rear end connecting seat and the front end cover, and threaded holes are provided on the end faces of both ends of the cylinder body, and connecting bolts are provided on one side of the rear end connecting seat and the front end cover, and the connecting bolts are arranged corresponding to the threaded holes, the connecting bolts are connected with the rear end connecting seat and the front end cover, and the connecting bolts are threadedly connected to the cylinder body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model device is provided with a first oil delivery pipeline, a first filter cartridge, a second oil delivery pipeline, a second filter cartridge, and a filter core. The first oil delivery pipeline delivers hydraulic oil to the upper part of the hydraulic cylinder, and the second oil delivery pipeline delivers hydraulic oil to the lower part of the hydraulic cylinder. The first filter cartridge, the second filter cartridge, and the filter core filter the delivered hydraulic oil to remove impurities in the hydraulic oil, preventing impurities in the hydraulic oil from being adsorbed on the inner wall of the cylinder body, thereby reducing wear and extending the service life of the hydraulic cylinder body.

[0018] 2. The utility model device is provided with a buffer plate, a compression spring, a protrusion, a slot and a ball. The piston contacts the buffer plate and applies an impact force. The compression spring is used to buffer and absorb the impact when the piston moves downward, thereby protecting the piston. The protrusion is aligned with the slot and inserted into the slot. When the piston moves downward, it contacts the buffer plate for positioning. The ball limits the buffer plate and can also reduce the resistance of the buffer plate to movement, thereby effectively preventing the piston from impacting and wearing the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This is a structural diagram of the front end of the cylinder body of the present utility model;

[0022] Figure 4 For the utility model Figure 2 A partial enlarged view of area A;

[0023] Figure 5 This is a structural diagram of the buffer tray of the present utility model.

[0024] In the figure: 1. Cylinder body; 2. Rear end connecting seat; 3. Front end cover; 4. Gley sealing ring; 5. Connecting bolt; 6. Upper oil port; 7. Lower oil port; 8. First oil pipeline; 9. First filter cartridge; 10. Second oil pipeline; 11. Second filter cartridge; 12. Raised connecting ring; 13. Piston member; 14. Buffer plate; 15. Compression spring; 16. Filter element; 17. Threaded hole; 18. Raised block; 19. Slot; 20. Sterling sealing ring; 21. Ball; 22. Through hole. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 The present invention provides an embodiment of a wear-resistant hydraulic cylinder body, comprising a cylinder body 1 and further comprising:

[0027] A rear end connecting seat 2 is provided at one end of the cylinder body 1, a front end cover 3 is provided at the other end of the cylinder body 1, a piston member 13 is provided inside the cylinder body 1, and the piston member 13 is slidably connected to the cylinder body 1, a Gley sealing ring 4 is provided inside the front end of the front end cover 3, and the Gley sealing ring 4 is connected to the front end cover 3 as a whole;

[0028] The Ster sealing ring 20 is arranged on the outside of the piston member 13, and the Ster sealing ring 20 is connected to the piston member 13 as a whole. The Ster sealing ring 20 fits against the inner wall of the cylinder body 1. The cylinder body 1 is provided with an upper oil port 6 and a lower oil port 7, and the upper oil port 6 and the lower oil port 7 are arranged at both ends of the cylinder body 1. A first oil pipeline 8 and a second oil pipeline 10 are provided on one side of the upper oil port 6 and the lower oil port 7, and the first oil pipeline 8 and the second oil pipeline 10 are connected to the cylinder body 1 as a whole. The first oil pipeline 8 and the second oil pipeline 10 are respectively provided with a first filter cartridge 9 and a second filter cartridge 11, and the first filter cartridge 9 and the second filter cartridge 11 are respectively connected to the first oil pipeline 8 and the second oil pipeline 10 as a whole. A filter core 16 is provided inside the first filter cartridge 9 and the second filter cartridge 11, and the filter core 16 is connected to the first filter cartridge 9 and the second filter cartridge 11 as a whole.

[0029] During use: hydraulic oil is injected into the cylinder body 1 from the upper oil port 6 and the lower oil port 7. As the hydraulic oil is delivered, thrust is applied from both sides of the piston member 13, which then drives the piston member 13 to move telescopically in the cylinder body 1, thereby realizing the telescopic function of the hydraulic cylinder. The first filter cartridge 9, the second filter cartridge 11 and the filter element 16 filter the delivered hydraulic oil to remove impurities in the hydraulic oil, prevent impurities in the hydraulic oil from being adsorbed on the inner wall of the cylinder body 1, reduce wear, and increase the service life of the hydraulic cylinder body.

[0030] See also Figure 2 and Figure 4 , a buffer disk 14 is provided inside the cylinder 1, and the buffer disk 14 is movably connected to the cylinder 1, the buffer disk 14 is provided on one side of the piston 13, a compression spring 15 is provided on one side of the buffer disk 14, and the two ends of the compression spring 15 are fixedly connected to the rear end connecting seat 2 and the buffer disk 14, a protrusion 18 is provided on one side of the center of the buffer disk 14, and the protrusion 18 and the buffer disk 14 are set as one body, a slot 19 is provided at the center of one end of the piston 13, and the slot 19 is corresponding to the protrusion 18, a through hole 22 is provided on the buffer disk 14, six through holes 22 are provided, and six The through holes 22 are arranged at equal intervals on the buffer disk 14, and balls 21 are arranged on the outer wall of the buffer disk 14. There are six balls 21, and the six balls 21 are arranged at equal intervals on the outer wall of the buffer disk 14. The balls 21 fit against the inner wall of the cylinder body 1, and the balls 21 are rollingly connected to the cylinder body 1 and the buffer disk 14. When the piston 13 moves to the bottom of the cylinder body 1, the piston 13 contacts the buffer disk 14 and applies an impact force. With the help of the compression spring 15, the impact of the piston 13 when it moves downward is buffered and absorbed, which protects the piston 13 and effectively prevents the piston 13 from impacting and wearing the cylinder body 1.

[0031] See also Figure 1 、 Figure 2 and Figure 3 , the interior of both ends of the cylinder body 1 is provided with a raised connecting ring 12, and there are two raised connecting rings 12, and the raised connecting ring 12 and the cylinder body 1 are set as a whole, the raised connecting ring 12 is clamped with the rear end connecting seat 2 and the front end cover 3, and threaded holes 17 are provided on the end faces of both ends of the cylinder body 1, and one side of the rear end connecting seat 2 and the front end cover 3 is provided with a connecting bolt 5, and the connecting bolt 5 is arranged corresponding to the threaded hole 17, the connecting bolt 5 is connected with the rear end connecting seat 2 and the front end cover 3, and the connecting bolt 5 is threadedly connected to the cylinder body 1.

[0032] Working principle: Hydraulic oil is injected into the cylinder body 1 from the upper oil port 6 and the lower oil port 7. As the hydraulic oil is delivered, thrust is applied from both sides of the piston member 13, which then drives the piston member 13 to move telescopically in the cylinder body 1, thereby realizing the telescopic function of the hydraulic cylinder. The first filter cartridge 9, the second filter cartridge 11 and the filter element 16 filter the delivered hydraulic oil to remove impurities in the hydraulic oil, thereby preventing impurities in the hydraulic oil from being adsorbed on the inner wall of the cylinder body 1 and reducing wear; the piston member 13 contacts the buffer plate 14 and applies an impact force, and uses the compression spring 15 to buffer and absorb the impact when the piston member 13 moves downward, thereby protecting the piston member 13, effectively avoiding the impact wear of the piston member 13 on the cylinder body 1, and improving the service life of the hydraulic cylinder body.

[0033] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant hydraulic cylinder body, comprising a cylinder body (1), characterized in that: Also includes: A rear end connecting seat (2) is provided at one end of the cylinder body (1); a front end cover (3) is provided at the other end of the cylinder body (1); a piston member (13) is provided inside the cylinder body (1), and the piston member (13) is slidably connected to the cylinder body (1); The Sterling seal ring (20) is arranged on the outside of the piston member (13), and the Sterling seal ring (20) and the piston member (13) are connected as a whole. The Sterling seal ring (20) fits the inner wall of the cylinder body (1). The cylinder body (1) is provided with an upper oil port (6) and a lower oil port (7), and the upper oil port (6) and the lower oil port (7) are arranged at both ends of the cylinder body (1). One side of the upper oil port (6) and the lower oil port (7) is provided with a An oil delivery pipeline (8) and a second oil delivery pipeline (10), and the first oil delivery pipeline (8) and the second oil delivery pipeline (10) are connected to the cylinder body (1) as a whole; the first oil delivery pipeline (8) and the second oil delivery pipeline (10) are respectively provided with a first filter cartridge (9) and a second filter cartridge (11), and the first filter cartridge (9) and the second filter cartridge (11) are respectively connected to the first oil delivery pipeline (8) and the second oil delivery pipeline (10) as a whole.

2. The wear-resistant hydraulic cylinder body according to claim 1, characterized in that: A filter core (16) is provided inside each of the first filter cartridge (9) and the second filter cartridge (11), and the filter core (16) is integrally connected to the first filter cartridge (9) and the second filter cartridge (11).

3. The wear-resistant hydraulic cylinder body according to claim 1, characterized in that: A Gley sealing ring (4) is provided inside the front end of the front end cover (3), and the Gley sealing ring (4) and the front end cover (3) are connected as a whole.

4. The wear-resistant hydraulic cylinder body according to claim 1, characterized in that: A buffer disk (14) is provided inside the cylinder body (1), and the buffer disk (14) is movably connected to the cylinder body (1). The buffer disk (14) is provided on one side of the piston member (13). A compression spring (15) is provided on one side of the buffer disk (14), and both ends of the compression spring (15) are fixedly connected to the rear end connecting seat (2) and the buffer disk (14), respectively.

5. The wear-resistant hydraulic cylinder body according to claim 4, characterized in that: A protruding block (18) is provided on one side of the center of the buffer disk (14), and the protruding block (18) and the buffer disk (14) are integrated. A slot (19) is provided at the center of one end of the piston member (13), and the slot (19) and the protruding block (18) are correspondingly provided.

6. The wear-resistant hydraulic cylinder body according to claim 4, characterized in that: The buffer tray (14) is provided with through holes (22), six through holes (22) are provided, and the six through holes (22) are equidistantly arranged on the buffer tray (14).

7. The wear-resistant hydraulic cylinder body according to claim 4, characterized in that: Balls (21) are provided on the outer wall of the buffer disk (14), and six balls (21) are provided. The six balls (21) are equidistantly arranged on the outer wall of the buffer disk (14). The balls (21) fit the inner wall of the cylinder body (1), and the balls (21) are rollingly connected to the cylinder body (1) and the buffer disk (14).

8. The wear-resistant hydraulic cylinder body according to claim 1, characterized in that: Both ends of the cylinder body (1) are provided with raised connecting rings (12), two raised connecting rings (12) are provided, and the raised connecting rings (12) and the cylinder body (1) are provided as a whole, the raised connecting rings (12) are clamped with the rear end connecting seat (2) and the front end cover (3), threaded holes (17) are provided on the end faces of both ends of the cylinder body (1), one side of the rear end connecting seat (2) and the front end cover (3) are provided with connecting bolts (5), and the connecting bolts (5) are provided corresponding to the threaded holes (17), the connecting bolts (5) are provided through the rear end connecting seat (2) and the front end cover (3), and the connecting bolts (5) are threadedly connected to the cylinder body (1).

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