A high-strength and wear-resistant hydraulic cylinder body

Abstract

The present invention relates to the technical field of hydraulic cylinders, and specifically discloses a high-strength and wear-resistant hydraulic cylinder body, comprising a cylinder body, a piston rod, a hydraulic oil chamber, an anti-wear filter box, and a detection mechanism; the piston rod is slidably arranged in the cylinder body, a hydraulic oil chamber is provided at the rear end of the cylinder body, a hydraulic oil pipe is connected to the hydraulic oil chamber, and the anti-wear filter box is installed at the connection between the hydraulic oil pipe and the hydraulic oil chamber; the detection mechanism comprises a pressure sensor installed at the rear end of the piston rod, and the working end of the pressure sensor is connected to the inner wall of the hydraulic oil chamber. The present invention installs a pressure sensor on the piston rod, and monitors the pressure between the piston rod and the inner wall of the hydraulic oil chamber in real time through multiple pressure sensors. When a large difference occurs in the pressure values ​​between the multiple pressure sensors, the pressure sensor cooperates with the alarm to remind the monitoring personnel to perform maintenance, thereby ensuring the overall wear resistance and service life of the hydraulic cylinder body.

Description

Technical Field

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

[0002] Hydraulic cylinders are hydraulic actuators that convert hydraulic energy into mechanical energy. They can perform linear reciprocating motion, move smoothly and without transmission gaps, and are therefore widely used in the hydraulic systems of various machines.

[0003] Due to long-term continuous operation under high-pressure conditions, the piston rod of a hydraulic cylinder is prone to bending. The back-and-forth sliding of the piston rod and the hydraulic cylinder can easily cause wear and tear on the cylinder's inner wall and piston rod, resulting in scratches and damage to related sealing components, making it extremely prone to oil leaks inside the cylinder. The hydraulic cylinder itself cannot effectively control the cleanliness of the oil in the system in which the cylinder is located. When impurities in the hydraulic oil enter the cylinder cavity, they adhere to the surface of the piston rod, causing wear and tear on the piston rod and affecting the overall service life of the cylinder. Summary of the Invention

[0004] The object of the present invention is to provide a high-strength and wear-resistant hydraulic cylinder body to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-strength, wear-resistant hydraulic cylinder body, comprising a cylinder body, a piston rod, a hydraulic oil chamber, an anti-wear filter box, and a detection mechanism; the piston rod is slidably disposed within the cylinder body, a hydraulic oil chamber is defined at the rear end of the cylinder body, a hydraulic oil pipe is connected to the hydraulic oil chamber, and the anti-wear filter box is installed at the connection between the hydraulic oil pipe and the hydraulic oil chamber;

[0006] The anti-wear filter box is internally installed with a filter cartridge and a filter screen. The top of the filter cartridge is provided with an oil inlet pipe connected to the hydraulic oil chamber. An anti-blocking brush is installed in the filter cartridge below the oil inlet pipe.

[0007] The detection mechanism includes a pressure sensor installed at the rear end of the piston rod, and the working end of the pressure sensor is connected to the inner wall of the hydraulic oil chamber;

[0008] A fixed base is provided at the bottom of the oil cylinder body, a reinforcement bracket is installed on the outer side wall of the oil cylinder body, a reinforcement support rod is connected between the reinforcement bracket and the fixed base, and an oil pipe anti-dropping buckle is provided on the reinforcement support rod.

[0009] As a preferred solution of the present invention, the inner wall of the hydraulic oil chamber is coated with a metal ceramic wear-resistant coating.

[0010] As a preferred solution of the present invention, a rubber stopper is provided at the rear end of the piston rod, a stepped shaft is provided at the front side of the rubber stopper, and the pressure sensor is mounted on the circumferential outer side wall of the stepped shaft.

[0011] As a preferred solution of the present invention, a plurality of pressure sensors are provided, and a ring array of the plurality of pressure sensors is installed on the stepped shaft.

[0012] As a preferred solution of the present invention, the pressure sensor is connected to an alarm, and the alarm is connected to a monitoring device.

[0013] As a preferred solution of the present invention, a dirt collecting groove is provided on the circumferential outer side wall of the stepped shaft.

[0014] As a preferred solution of the present invention, the cross-section of the sewage collecting tank is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom, and the side of the sewage collecting tank with a larger area is connected to the inner wall of the hydraulic oil chamber.

[0015] As a preferred solution of the present invention, an oil filling port and an oil discharge port are respectively provided on the left and right sides of the hydraulic oil chamber, and both the oil filling port and the oil discharge port are connected to the anti-wear filter box.

[0016] As a preferred solution of the present invention, the oil pipe anti-dropping device includes a support rod clamp and an oil pipe clamp. The support rod clamp is clamped on the reinforcing support rod, and the hydraulic oil pipe is clamped on the oil pipe clamp.

[0017] As a preferred solution of the present invention, the anti-blocking brush is rotatably installed in the filter cartridge, and the anti-blocking brush is provided with a brush bundle connected to the inner cavity wall of the filter cartridge.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a high-strength and wear-resistant hydraulic cylinder body. The present invention addresses the technical problem that the inner wall and piston rod of the existing hydraulic cylinder body are prone to wear. A pressure sensor connected to the hydraulic oil chamber is installed at the rear end of the piston rod. The pressure between the piston rod and the inner wall of the hydraulic oil chamber is monitored in real time by multiple pressure sensors. When there is a large difference in the pressure values ​​between the multiple pressure sensors, the piston rod may be skewed. The cooperation of the pressure sensor and the alarm reminds the monitoring personnel to carry out maintenance, thereby ensuring the overall wear resistance and service life of the hydraulic cylinder body.

[0020] 2. The present invention provides a high-strength and wear-resistant hydraulic cylinder body. In order to solve the technical problem that the inner wall and piston rod of the existing hydraulic cylinder body are prone to wear, the present invention adds an anti-wear filter box at the opening of the hydraulic oil chamber. The anti-wear filter box can filter the oil in and out of the hydraulic oil chamber, and perform self-cleaning operation through the anti-blocking brush inside it to prevent the anti-wear filter box from being blocked, affecting the filtering effect of the oil, preventing impurities in the hydraulic oil from adhering to the piston rod, and avoiding dust from damaging the surface of the piston rod when the piston rod slides back and forth, thereby ensuring the overall wear resistance and service life of the hydraulic cylinder body.

[0021] 3. The present invention provides a high-strength and wear-resistant hydraulic cylinder body. This solution also provides a reinforcement bracket on the outside of the cylinder body, and an oil pipe anti-slip buckle is added to the reinforcing support rod of the reinforcement bracket, so that it can fix the position of the hydraulic oil pipe, avoid the hydraulic oil pipe from slipping or bending, and ensure the normal use of the hydraulic oil pipe function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the specific structure of the wear-resistant filter box of the present invention;

[0024] Figure 3 Schematic diagram of the installation structure of the oil pipe anti-tripping device of the present invention;

[0025] Figure 4 It is the front view of the stepped shaft of the present invention.

[0026] In the figure: 1. Cylinder body; 2. Piston rod; 3. Hydraulic oil chamber; 4. Anti-wear filter box; 5. Hydraulic oil pipe; 6. Filter cartridge; 7. Filter screen; 8. Oil inlet pipe; 9. Brush bundle; 10. Anti-blocking brush; 11. Pressure sensor; 12. Fixed base; 13. Reinforcement bracket; 14. Strengthening support rod; 15. Support rod clamp; 16. Metal ceramic wear-resistant coating; 17. Rubber plug; 18. Stepped shaft; 19. Sewage collecting tank; 20. Oil filling port; 21. Oil drain port; 22. Oil pipe clamp. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] The following is combined with Figures 1 to 4 Describe any one embodiment of the present invention for further explanation:

[0031] Example 1: A high-strength, wear-resistant hydraulic cylinder body, comprising a cylinder body 1, a piston rod 2, a hydraulic oil chamber 3, an anti-wear filter cartridge 4, and a detection mechanism; the piston rod 2 is slidably disposed within the cylinder body 1, a hydraulic oil chamber 3 is defined at the rear end of the cylinder body 1, a hydraulic oil pipe 5 is connected to the hydraulic oil chamber 3, and the anti-wear filter cartridge 4 is mounted at the connection between the hydraulic oil pipe 5 and the hydraulic oil chamber 3;

[0032] A filter cartridge 6 and a filter screen 7 are installed inside the anti-wear filter box 4. An oil inlet pipe 8 communicating with the hydraulic oil chamber 3 is opened at the top of the filter cartridge 6. An anti-blocking brush 10 is installed in the filter cartridge 6 below the oil inlet pipe 8.

[0033] As a preferred embodiment, the inner wall of the hydraulic oil chamber 3 is coated with a metal ceramic wear-resistant coating 16 .

[0034] As a preferred embodiment, a rubber stopper 17 is provided at the rear end of the piston rod 2 , a stepped shaft 18 is provided at the front side of the rubber stopper 17 , and the pressure sensor 11 is mounted on the circumferential outer side wall of the stepped shaft 18 .

[0035] As a preferred embodiment, an oil filling port 20 and an oil discharge port 21 are respectively opened on the left and right sides of the hydraulic oil chamber 3 , and both the oil filling port 20 and the oil discharge port 21 are connected to the anti-wear filter box 4 .

[0036] As a preferred embodiment, the anti-blocking brush 10 is rotatably installed in the filter cartridge 6 , and the anti-blocking brush 10 is provided with a brush bundle 9 connected to the inner cavity wall of the filter cartridge 6 .

[0037] In this embodiment: when the hydraulic cylinder is actually used, the hydraulic oil pipe 5 on the oil filling port 20 and the oil discharge port 21 is connected to the external hydraulic oil control device, and hydraulic oil is injected into the rear end of the hydraulic oil chamber 3 through the oil filling port 20. Under the action of the hydraulic oil, the piston rod 2 is pushed to perform reciprocating linear motion in the hydraulic oil chamber 3. As the piston rod 2 moves, the hydraulic oil in the hydraulic oil chamber 3 is discharged from the oil discharge port 21.

[0038] When the hydraulic oil enters or exits the hydraulic oil chamber 3, the hydraulic oil first enters the anti-wear filter box 4. After the hydraulic oil enters the anti-wear filter box 4, it is first filtered through the filter cylinder 6 and then filtered again through the filter screen 7. At the same time, when the hydraulic oil enters the anti-wear filter box 4, a continuous impact force is generated on the anti-blocking brush 10, so that the anti-blocking brush 10 continues to rotate in the filter cylinder 6. Through the connection between the brush bundle 9 and the filter cylinder 6, the filter cylinder 6 is self-cleaned to prevent the anti-wear filter box 4 from being blocked, so as not to affect the filtering effect of the oil, and prevent impurities in the hydraulic oil from adhering to the piston rod 2 and damaging the surface of the piston rod 2.

[0039] Example 2: A high-strength and wear-resistant hydraulic cylinder body also includes a dirt collecting groove 19. The dirt collecting groove 19 is opened on the circumferential outer wall of the stepped shaft 18. The cross-section of the dirt collecting groove 19 is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom. The side of the dirt collecting groove 19 with a larger area is connected to the inner wall of the hydraulic oil chamber 3.

[0040] In this embodiment: during the movement of the piston rod 2, the stepped shaft 18 is slidably connected to the inner wall of the hydraulic oil chamber 3. While the stepped shaft 18 moves, impurities on the inner wall of the hydraulic oil chamber 3 are scraped off through the sump 19 and collected in the inner groove of the sump 19, thereby reducing impurities in the hydraulic oil.

[0041] Example 3: A high-strength and wear-resistant hydraulic cylinder body also includes a detection mechanism, which includes a pressure sensor 11 installed at the rear end of the piston rod 2, and the working end of the pressure sensor 11 is connected to the inner wall of the hydraulic oil chamber 3.

[0042] As a preferred embodiment, a plurality of pressure sensors 11 are provided, and the plurality of pressure sensors 11 are mounted on the stepped shaft 18 in an annular array.

[0043] As a preferred embodiment, the pressure sensor 11 is connected to an alarm, and the alarm is connected to the monitoring device.

[0044] In this embodiment: while the piston rod 2 moves, multiple pressure sensors 11 installed on the stepped shaft 18 at its rear end monitor the pressure between the piston rod 2 and the inner wall of the hydraulic oil chamber 3 in real time. When there is a large difference in the pressure values ​​monitored by the multiple pressure sensors 11, the piston rod 2 may be skewed. At this time, the pressure sensor 11 sends a signal to the alarm, and the alarm reminds the monitoring personnel to inspect the hydraulic cylinder through the monitoring equipment of the hydraulic cylinder to ensure the overall wear resistance and service life of the cylinder body 1.

[0045] Example 4: A fixed base 12 is provided at the bottom of the cylinder body 1, a reinforcement bracket 13 is installed on the outer wall of the cylinder body 1, a reinforcement support rod 14 is connected between the reinforcement bracket 13 and the fixed base 12, and an oil pipe anti-disconnection device is provided on the reinforcement support rod 14.

[0046] As a preferred embodiment, the oil pipe anti-disconnection device includes a support rod clamp 15 and an oil pipe clamp 22 . The support rod clamp 15 is clamped on the reinforcing support rod 14 , and the hydraulic oil pipe 5 is clamped on the oil pipe clamp 22 .

[0047] In this embodiment: This solution also provides a reinforcement bracket 13 on the outside of the oil cylinder body 1, and an oil pipe anti-drop buckle is added to the reinforcement support rod 14 of the reinforcement bracket 13. In actual use, the support rod clamp 15 is clamped on the reinforcement support rod 14, and the hydraulic oil pipe 5 is clamped on the oil pipe clamp 22, so that it can fix the position of the hydraulic oil pipe 5, avoid the hydraulic oil pipe 5 from slipping or bending during use, and ensure the normal use of the function of the hydraulic oil pipe 5.

[0048] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength, wear-resistant hydraulic cylinder body, characterized by: The invention comprises an oil cylinder body (1), a piston rod (2), a hydraulic oil chamber (3), an anti-wear filter box (4), and a detection mechanism; the piston rod (2) is slidably arranged in the oil cylinder body (1); a hydraulic oil chamber (3) is provided at the rear end of the oil cylinder body (1); a hydraulic oil pipe (5) is connected to the hydraulic oil chamber (3); and the anti-wear filter box (4) is installed at the connection between the hydraulic oil pipe (5) and the hydraulic oil chamber (3); The anti-wear filter box (4) is internally installed with a filter cartridge (6) and a filter screen (7); the top end of the filter cartridge (6) is provided with an oil inlet pipe (8) communicating with the hydraulic oil chamber (3); an anti-blocking brush (10) is installed in the filter cartridge (6) below the oil inlet pipe (8); The detection mechanism comprises a pressure sensor (11) mounted on the rear end of the piston rod (2), wherein the working end of the pressure sensor (11) is connected to the inner wall of the hydraulic oil chamber (3); A fixed base (12) is provided at the bottom of the oil cylinder body (1), a reinforcement bracket (13) is installed on the outer side wall of the oil cylinder body (1), a reinforcement support rod (14) is connected between the reinforcement bracket (13) and the fixed base (12), and an oil pipe anti-dropping device is provided on the reinforcement support rod (14); The inner wall of the hydraulic oil chamber (3) is coated with a metal ceramic wear-resistant coating (16); The rear end of the piston rod (2) is provided with a rubber plug (17), the front side of the rubber plug (17) is provided with a stepped shaft (18), and the pressure sensor (11) is mounted on the circumferential outer wall of the stepped shaft (18); A dirt collecting groove (19) is provided on the circumferential outer wall of the stepped shaft (18); The cross section of the dirt collecting tank (19) is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom, and the side with the larger area of ​​the dirt collecting tank (19) is connected to the inner wall of the hydraulic oil chamber (3); The anti-blocking brush (10) is rotatably mounted in the filter cartridge (6), and a brush bundle (9) connected to the inner cavity wall of the filter cartridge (6) is provided on the anti-blocking brush (10).

2. The high-strength, wear-resistant hydraulic cylinder body according to claim 1, characterized in that: A plurality of pressure sensors (11) are provided, and the plurality of pressure sensors (11) are mounted in an annular array on the stepped shaft (18).

3. The high-strength, wear-resistant hydraulic cylinder body according to claim 1, characterized in that: The pressure sensor (11) is connected to an alarm, and the alarm is connected to a monitoring device.

4. The high-strength, wear-resistant hydraulic cylinder body according to claim 1, characterized in that: The left and right sides of the hydraulic oil chamber (3) are respectively provided with an oil filling port (20) and an oil discharge port (21), and both the oil filling port (20) and the oil discharge port (21) are connected to the anti-wear filter box (4).

5. The high-strength, wear-resistant hydraulic cylinder body according to claim 1, characterized in that: The oil pipe anti-dropout device comprises a support rod clamp (15) and an oil pipe clamp (22); the support rod clamp (15) is clamped on the reinforcing support rod (14), and the hydraulic oil pipe (5) is clamped on the oil pipe clamp (22).

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