Hydraulic cylinder detection device

Abstract

A hydraulic cylinder detection device comprises a detection device body, and the detection device body comprises an air cylinder cake, an air pressure receiver, a receiving line, a hydraulic rod and a hydraulic press. A hydraulic rod is arranged on the upper portion of the hydraulic press, multiple sets of receiving lines are arranged outside the hydraulic press, an air cylinder cake is arranged at the other end of the hydraulic rod, and an air pressure receiver is arranged at the front end of the air cylinder cake and used for detecting changes of air pressure in the hydraulic cylinder; through the air pressure receiver arranged at the front end of the air cylinder cake, the pressure change in the hydraulic cylinder can be recorded, the hydraulic device controls the hydraulic rod to drive the air cylinder cake to move, and whether the hydraulic cylinder is damaged or not is finally determined by observing and recording the large change of the pressure in the hydraulic cylinder.

Description

Technical Field

[0001] The invention belongs to the field of hydraulic cylinder detection, and in particular relates to a hydraulic cylinder detection device. Background Art

[0002] The hydraulic cylinder, also known as the oil cylinder or actuator, is an important actuator in the hydraulic transmission system. Its function is to convert the pressure energy of the liquid into mechanical energy to drive the load to achieve linear or rotational (swinging) motion.

[0003] Hydraulic cylinders are inspected by testing devices before leaving the factory. For example, the air tightness of the hydraulic cylinder is tested. The existing testing devices require a drilling test process. This solution cannot install displacement sensors when facing smaller hydraulic cylinders. The slender holes processed inside the piston rod will greatly weaken the overall strength of the piston rod, affecting the overall performance of the hydraulic cylinder. Quality accidents such as piston rod bending and breakage are prone to occur, and the life of the hydraulic cylinder is greatly reduced. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a hydraulic cylinder detection device, which at least partially solves the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: a hydraulic cylinder detection device, including a detection device, wherein the detection device includes a cylinder cake, an air pressure receiver, a receiving line, a hydraulic rod and a hydraulic device.

[0006] A hydraulic rod is provided on the upper part of the hydraulic machine, and a plurality of receiving wires are provided on the outside of the hydraulic machine. A cylinder cake is provided at the other end of the hydraulic rod, and a pneumatic pressure receiver is provided at the front end of the cylinder cake. The pneumatic pressure receiver is used to detect the change of the air pressure inside the hydraulic cylinder. The other end of the pneumatic pressure receiver is connected to the receiving wire, and the receiving wire is used to transmit the data received by the pneumatic pressure receiver.

[0007] Furthermore, the detection device also includes a pressure processor, a signal transmitter and a fixed axis.

[0008] Furthermore, a pressure processor is provided on the outside of the hydraulic press, the other end of the receiving line is connected to the pressure processor, a signal transmitter is provided on the other side of the pressure processor, the signal transmitter is configured to transmit the signal received by the air pressure receiver, and a fixed shaft is provided on the outside of the pressure processor, and the fixed shaft is used to fix the pressure processor.

[0009] Furthermore, the hydraulic cylinder detection device proposed in the present invention also includes a fixing ring.

[0010] A fixing ring is arranged outside the fixing shaft, and the fixing ring is used for fixing the fixing shaft.

[0011] Furthermore, it comprises a control device, which is arranged at the lower part of the detection device and is used to control the control device to complete the detection of the hydraulic cylinder.

[0012] Furthermore, the control device includes a servo motor, a reinforcement ring, a transmission rod and a connecting frame.

[0013] A reinforcement ring is provided on the upper part of the servo motor, a transmission rod is provided outside the reinforcement ring, the reinforcement ring is configured to reinforce the transmission rod, a plurality of connecting frames are provided on the upper end of the transmission rod, and the other end of the connecting frame is fixedly connected to the inside of the fixing ring.

[0014] Furthermore, the control device also includes a supporting base and a control console.

[0015] A support base is arranged outside the servo motor, and a control console is arranged on the upper part of the support base. The control console is used to control the operation of the device.

[0016] Furthermore, the hydraulic cylinder detection device proposed in the present invention includes a fixing device, which is arranged outside the detection device and is used to fix the hydraulic cylinder to be detected.

[0017] Furthermore, the fixing device includes a fixed vertical bracket, a sliding groove, a limit block, a clamping frame, a fixed column, an upper base, a control block and a fixed clamping hand.

[0018] Furthermore, a sliding groove is provided inside the fixed vertical bracket, a limit block is provided on one side of the fixed vertical bracket, a fixed column is provided on the upper part of the limit block, an upper base is provided on the upper part of the fixed column, a control block is provided on the upper part of the upper base, and the control block is used to control the extension and retraction of the fixed column, and a clamping frame is provided on the other side of the fixed vertical bracket, the limit block passes through the sliding groove and is connected to the clamping frame, a fixed clamping hand is provided at one end of the clamping frame, and the fixed clamping hand is configured to fix the hydraulic cylinder to be detected.

[0019] Furthermore, the fixing device also includes a limiting platform, a sliding column, a sliding platform and an air intake valve.

[0020] Furthermore, limit platforms are provided on both sides of the sliding column, a sliding platform is provided inside the sliding column, the sliding platform is configured to slide along the sliding column, an intake valve is provided on the upper part of the sliding platform, the intake valve is externally connected to compressed gas, and the intake valve is configured to drive the sliding platform to slide back and forth on the sliding column.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The pressure receiver installed at the front end of the cylinder block can record the pressure changes inside the hydraulic cylinder. As the hydraulic actuator controls the hydraulic rod to drive the cylinder block to move, the damage of the hydraulic cylinder can be determined by observing and recording the pressure changes inside the hydraulic cylinder. (2) The servo motor drives the transmission rod to rotate, which in turn drives the fixed ring to rotate, and finally drives the cylinder cake fixed on the upper part of the fixed ring to rotate. Cylinder cakes of different sizes can be converted according to different models of hydraulic cylinders. The rotation of the servo motor can reduce the operation of replacing the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a hydraulic cylinder detection device proposed in an embodiment of the present invention; Figure 2 A front view of a hydraulic cylinder detection device proposed in an embodiment of the present invention; Figure 3 A three-dimensional diagram of a detection device provided in an embodiment of the present invention; Figure 4 A three-dimensional diagram of a fixing device according to an embodiment of the present invention; Figure 5 This is a front view of the control device provided in an embodiment of the present invention.

[0023] Among them, 1. detection device, 2. fixing device, 3. control device; 11. Cylinder cake, 12. Air pressure receiver, 13. Receiving line, 14. Hydraulic rod, 15. Hydraulic machine, 16. Pressure processor, 17. Signal transmitter, 18. Fixed shaft, 19. Fixed ring; 21. Limiting platform, 22. Sliding column, 23. Sliding platform, 24. Strengthening base, 25. Air inlet valve, 26. Fixed vertical bracket, 27. Sliding groove, 28. Limiting block, 29. Clamping frame, 210. Fixed column, 211. Upper base, 212. Control block, 213. Fixed clamping hand; 31. Support base, 32. Servo motor, 33. Reinforcement ring, 34. Transmission rod, 35. Connecting frame, 36. Support base, 37. Control console.

[0024] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention proposes a hydraulic cylinder detection device, including a detection device 1, wherein the detection device 1 includes a cylinder cake 11, an air pressure receiver 12, a receiving line 13, a hydraulic rod 14, a hydraulic press 15, a pressure processor 16, a signal transmitter 17, a fixed shaft 18 and a fixed ring 19.

[0028] In the embodiment of the present invention, a plurality of fixed shafts 18 are provided on the upper portion of the fixed ring 19, a pressure processor 16 is provided on the other side of the fixed shaft 18, a hydraulic press 15 is provided on the other end of the pressure processor 16, the other end of the hydraulic press 15 is connected to the hydraulic rod 14, a cylinder cake 11 is provided at the front end of the hydraulic rod 14, a pneumatic pressure receiver 12 is provided at the other end of the cylinder cake 11, a receiving line 13 is provided on the outside of the cylinder cake 11, the receiving line 13 can receive data sensed by the pneumatic pressure receiver 12, the other end of the receiving line 13 is connected to the pressure processor 16, the data sensed by the pneumatic pressure receiver 12 is transmitted through the receiving line 13 and enters the pressure processor 16, a signal transmitter 17 is provided at the other end of the pressure processor 16, the signal transmitter 17 can transmit the final result to the console 37.

[0029] The hydraulic press 15 will control the extension and retraction of the hydraulic rod 14. The front end of the hydraulic rod 14 fixes the cylinder cake 11. The hydraulic press 15 will drive the cylinder cake 11 to extend and retract. The cylinder cakes 11 of different models and sizes are rotated according to different models of hydraulic cylinders. When the hydraulic press 15 drives the cylinder cake 11 to extend and retract, as the cylinder cake 11 slowly extends into the interior of the hydraulic cylinder, the pressure inside the hydraulic cylinder gradually increases, and the air pressure receiver 12 at the front of the cylinder cake 11 will record the air pressure changes inside the hydraulic cylinder. If the hydraulic cylinder is intact, the pressure received by the air pressure receiver 12 is a constant pressure. If the hydraulic cylinder is damaged, the pressure received by the air pressure receiver 12 will change. The data received by the air pressure receiver 12 is detected to detect whether the hydraulic cylinder is intact. The servo motor 32 will drive the fixing ring 19 to rotate. When the fixing ring 19 rotates, it can drive the cylinder cake 11 to rotate. Different cylinder cakes 11 are selected according to different models of hydraulic cylinders to reduce the steps of reinstallation.

[0030] like Figure 1 , Figure 2 and Figure 5 As described above, an embodiment of the present invention provides a hydraulic cylinder detection device, including a control device 3, wherein the control device 3 is arranged at the lower part of the detection device 1, and the control device 3 is used to control the control device 3 to complete the detection of the hydraulic cylinder.

[0031] The control device 3 includes a support base 31 , a servo motor 32 , a reinforcement ring 33 , a transmission rod 34 , a connecting frame 35 , a support base 36 and a control console 37 .

[0032] In the embodiment of the present invention, a servo motor 32 is provided on the upper part of the support base 31, a reinforcement ring 33 is provided on the upper part of the servo motor 32, and a transmission rod 34 is provided on the upper part of the reinforcement ring 33. The reinforcement ring 33 is used to reinforce the transmission rod 34 to prevent the transmission rod 34 from shaking. A plurality of connecting frames 35 are provided on the upper part of the transmission rod 34, and the other end of each connecting frame 35 is connected to the fixed ring 19. The rotation of the servo motor 32 can drive the transmission rod 34 to rotate, thereby driving the connecting frame 35 to rotate, and finally driving the fixed ring 19 to rotate. When the fixed ring 19 rotates, the cylinder cake 11 can be rotated to a specified position. During the test, the hydraulic cylinder is fixed in the fixed clamp 213, and the fixed clamp 213 is stationary relative to the fixed ring 19. Various types of cylinder cakes 11 are provided on the outside of the fixed ring 19. Then, by rotating the fixed ring 19, the cylinder cake 11 of the same model can be rotated to the lower part of the hydraulic cylinder to be tested, and then the hydraulic press 15 drives the cylinder cake 11 to extend into the hydraulic cylinder to be tested.

[0033] A support base 36 is provided on the outside of the support base 31, and a control console 37 is provided on the upper part of the support base 36. The control console 37 is used to control the operation of the entire equipment. The data from the air pressure receiver 12 will be transmitted to the control console 37 through the signal transmitter 17. After analysis by the control console 37, a product report will be issued for the hydraulic cylinder, and the qualified or unqualified will be finally presented in the form of data in the control console 37.

[0034] Compared with traditional testing equipment, the present invention uses an air pressure receiver 12 provided at the front end of the cylinder cake 11 to perform pressure testing on the inside of the cylinder body, and determines whether the cylinder body is damaged by comparing the values ​​of qualified products. Traditional testing devices are external tests, and the test results of the present invention are more accurate than external tests. Previous equipment needed to replace different equipment when facing hydraulic cylinders of different models and sizes, and the operation was complicated. The present invention drives the rotation of cylinder cakes 11 of different models by rotating the fixing ring 19, reducing the number of times the test device is replaced, saving time and improving efficiency.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, an embodiment of the present invention provides a hydraulic cylinder detection device, including a fixing device 2, wherein the fixing device 2 is arranged outside the detection device 1, and the fixing device 2 is used to fix the hydraulic cylinder to be detected.

[0036] The fixing device 2 includes a limiting platform 21, a sliding column 22, a sliding platform 23, a reinforcing base 24, an air intake valve 25, a fixed vertical bracket 26, a sliding groove 27, a limiting block 28, a clamping frame 29, a fixing column 210, an upper base 211, a control block 212 and a fixed clamping hand 213.

[0037] In the embodiment of the present invention, a sliding column 22 is provided inside the limit table 21, and the sliding column 22 passes through the inside of the sliding table 23. A fixed vertical bracket 26 is provided on the upper part of the sliding table 23, and a sliding groove 27 is provided inside the fixed vertical bracket 26. A limit block 28 is provided outside the fixed vertical bracket 26, and the other end of the limit block 28 passes through the inside of the sliding groove 27. The other side of the limit block 28 is connected to the clamping frame 29. A fixed clamping hand 213 is provided at one end of the clamping frame 29, and the hydraulic cylinder to be tested is placed inside the fixed clamping hand 213. The fixed clamping hand 213 can fix the hydraulic cylinder that needs to be tested. A fixed column 210 is provided on the upper part of the limit block 28, and an upper base 211 is provided on the upper part of the fixed column 210. A control block 212 is provided on the upper part of the upper base 211. The control block 212 can control the extension and retraction of the fixed column 210. The extension and retraction of the fixed column 210 can be controlled by the control block 212, and the upward and downward movement of the limit block 28 can be controlled. When the limit block 28 moves up and down, the clamping frame 29 can be further driven to move, and finally the fixed clamping hand 213 can be driven to move.

[0038] A reinforcement base 24 is provided on the upper part of the sliding table 23, and an air intake valve 25 is provided on the upper part of the reinforcement base 24. The air intake valve 25 is connected to compressed gas externally. Through the external compressed gas, the air intake valve 25 can drive the sliding table 23 to slide back and forth on the sliding column 22. The movement of the sliding table 23 can make the fixed vertical bracket 26 move back and forth. By changing the movement of the fixed vertical bracket 26, the movement of the hydraulic cylinder fixed inside the fixed clamp 213 can be ultimately changed. The sliding table 23 can move hydraulic cylinders of different models and sizes to specified positions, and then the final inspection can be completed.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the creative purpose of the embodiments of the present invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A hydraulic cylinder detection device, Features: The invention comprises a detection device (1), wherein the detection device (1) comprises a cylinder cake (11), a gas pressure receiver (12), a receiving line (13), a hydraulic rod (14) and a hydraulic device (15), wherein: A hydraulic rod (14) is provided on the upper part of the hydraulic machine (15), and a plurality of receiving wires (13) are provided on the outside of the hydraulic machine (15). A cylinder cake (11) is provided on the other end of the hydraulic rod (14), and a pneumatic receiver (12) is provided on the front end of the cylinder cake (11). The pneumatic receiver (12) is used to detect changes in the internal air pressure of the hydraulic cylinder. The other end of the pneumatic receiver (12) is connected to the receiving wire (13), and the receiving wire (13) is used to transmit data received by the pneumatic receiver (12).

2. The hydraulic cylinder detection device according to claim 1, Features: The detection device (1) further comprises a pressure processor (16), a signal transmitter (17) and a fixed shaft (18), wherein: A pressure processor (16) is provided on the outside of the hydraulic press (15), the other end of the receiving line (13) is connected to the pressure processor (16), a signal transmitter (17) is provided on the other side of the pressure processor (16), and the signal transmitter (17) is configured to transmit the signal received by the air pressure receiver (12), and a fixed shaft (18) is provided on the outside of the pressure processor (16), and the fixed shaft (18) is used to fix the pressure processor (16).

3. The hydraulic cylinder detection device according to claim 2, Features: The detection device (1) further comprises a fixing ring (19), wherein: A fixing ring (19) is provided on the outside of the fixing shaft (18), and the fixing ring (19) is used to fix the fixing shaft (18).

4. The hydraulic cylinder detection device according to claim 3, Features: It comprises a control device (3), wherein the control device (3) is arranged at the lower part of the detection device (1), and the control device (3) is used to control the control device (3) to complete the detection of the hydraulic cylinder.

5. The hydraulic cylinder detection device according to claim 4, Features: The control device (3) comprises a servo motor (32), a reinforcement ring (33), a transmission rod (34) and a connecting frame (35), wherein: A reinforcement ring (33) is provided on the upper part of the servo motor (32), a transmission rod (34) is provided on the outside of the reinforcement ring (33), the reinforcement ring (33) is configured to reinforce the transmission rod (34), a plurality of connecting frames (35) are provided on the upper end of the transmission rod (34), and the other end of the connecting frame (35) is fixedly connected to the inside of the fixing ring (19).

6. The hydraulic cylinder detection device according to claim 5, Features: The control device (3) further comprises a support base (36) and a control console (37), wherein: A support base (36) is provided outside the servo motor (32), and a control console (37) is provided on the upper part of the support base (36). The control console (37) is used to control the operation of the device.

7. The hydraulic cylinder detection device according to claim 6, Features: It comprises a fixing device (2), wherein the fixing device (2) is arranged outside the detection device (1), and the fixing device (2) is used to fix a hydraulic cylinder to be detected.

8. The hydraulic cylinder detection device according to claim 7, Features: The fixing device (2) comprises a fixed vertical bracket (26), a sliding groove (27), a limit block (28), a clamping frame (29), a fixed column (210), an upper base (211), a control block (212) and a fixed clamping hand (213), wherein: A sliding groove (27) is provided inside the fixed vertical bracket (26); a limit block (28) is provided on one side of the fixed vertical bracket (26); a fixed column (210) is provided on the upper part of the limit block (28); an upper base (211) is provided on the upper part of the fixed column (210); a control block (212) is provided on the upper part of the upper base (211); the control block (212) is used to control the extension and retraction of the fixed column (210); a clamping frame (29) is provided on the other side of the fixed vertical bracket (26); the limit block (28) passes through the sliding groove (27) and is connected to the clamping frame (29); a fixed clamping hand (213) is provided at one end of the clamping frame (29); the fixed clamping hand (213) is configured to fix a hydraulic cylinder to be inspected.

9. The hydraulic cylinder detection device according to claim 8, Features: The fixing device (2) further comprises a limiting platform (21), a sliding column (22), a sliding platform (23) and an air intake valve (25), wherein: Limiting platforms (21) are provided on both sides of the sliding column (22), a sliding platform (23) is provided inside the sliding column (22), the sliding platform (23) is configured to slide along the sliding column (22), an intake valve (25) is provided on the upper part of the sliding column (23), the intake valve (25) is externally connected to compressed gas, and the intake valve (25) is configured to drive the sliding platform (23) to slide back and forth on the sliding column (22).

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