Hydraulic cylinder buckling strength verification machine rack

Abstract

The utility model relates to the technical field of detection devices, and discloses a rack of a hydraulic cylinder buckling strength verification machine, which comprises a rack body, a group of guide screws are arranged on the rack body, and a slidable pressure feeding plate and a position-adjustable positioning plate are respectively arranged on the surface of the rack body through the group of guide screws. A pressure applying cylinder is installed between the opposite surfaces of the frame body and the pressure feeding plate, a spoke type tension and pressure sensor is installed on the pressure feeding plate, the detection end of the spoke type tension and pressure sensor is connected with a hinged support, a clamping assembly is installed on the positioning plate, a to-be-detected air cylinder is clamped on the clamping assembly, and a piston section is arranged on the to-be-detected air cylinder. When the hydraulic cylinder buckling detection device works, on the basis of meeting the function of detecting the buckling strength of piston rods with different sizes, multi-point two-way buckling deformation quantity monitoring of the piston rods can be carried out, and then the buckling detection precision of the hydraulic cylinder is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and more specifically, to a frame of a hydraulic cylinder buckling strength verification machine. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is mostly used in oil cylinders and cylinder motion actuators. It is a moving component that moves frequently and has high technical requirements. It has the function of connecting the piston and the crosshead, transmitting the force acting on the piston and driving the piston to move.

[0003] The quality of piston rod processing directly affects the life and reliability of the entire product. Therefore, the bending degree of the piston rod needs to be tested when it is used. In the prior art, the patent document with publication number CN218330557U discloses a cylinder piston rod bending detection tool, which is convenient for detecting piston rods of different sizes. However, the above device is not convenient for multi-point two-way deformation monitoring of the piston rod while meeting the detection function of piston rods of different sizes, and thus cannot effectively improve the buckling detection accuracy of the hydraulic cylinder. Based on this, the utility model provides a hydraulic cylinder buckling strength verification machine frame to solve the technical problems raised in the above background technology. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a hydraulic cylinder buckling strength verification machine frame. When the utility model is working, on the basis of meeting the buckling strength detection function of piston rods of different sizes, it can also perform multi-point bidirectional buckling deformation monitoring of the piston rod, thereby effectively improving the buckling detection accuracy of the hydraulic cylinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a frame of a hydraulic cylinder buckling strength verification machine, including a frame body, a group of guide screws are installed on the frame body, and a slidable pressure plate and an adjustable positioning plate are respectively installed on the surface of the frame body through a group of guide screws, a pressure cylinder is installed between the relative surfaces of the frame body and the pressure plate, a spoke-type tensile pressure sensor is installed on the pressure plate, and the detection end of the spoke-type tensile pressure sensor is connected to a hinge seat, a clamping assembly is installed on the positioning plate, and a cylinder to be tested is clamped on the clamping assembly, and a piston section is provided on the cylinder to be tested, and the end of the piston section is hinged to the hinge seat through a hinge shaft, and two inspection plates with adjustable spacing are provided on the clamping assembly, each of the inspection plates is provided with a monitoring part, and a group of ranging probes are installed on the monitoring part.

[0006] As a preferred technical solution of the utility model, the positioning plate is slidably connected to the guide screw, and limiting nuts are threadedly installed on the guide screw at positions corresponding to both sides of the positioning plate.

[0007] As a preferred technical solution of the utility model, the clamping assembly includes a clamping ring and two clamps symmetrically arranged and slidably connected to the positioning plate, the two inspection plates are respectively fixedly connected to the two clamps, connecting rods are hinged between the clamping ring and the relative surfaces of the two clamps, a clamping screw is rotatably connected to the positioning plate, the clamping screw is transmission-connected to the clamping ring, and the axial direction of the clamping screw is the same as the axial direction of the cylinder to be tested.

[0008] As a preferred technical solution of the utility model, the axial direction of the ranging probe is perpendicular to the axial direction of the cylinder to be measured, the axes of the ranging probe and the cylinder to be measured are parallel to the horizontal plane, the axial direction of the cylinder to be measured is perpendicular to the axial direction of the hinge shaft, and the axis of the hinge shaft is perpendicular to the horizontal plane.

[0009] As an optimal technical solution of the utility model, an electric control box is installed on the frame, a single-chip microcomputer is installed on the end face of the electric control box, the data ends of the ranging probe and the spoke-type tension and pressure sensor are electrically connected to the single-chip microcomputer, and a battery electrically connected to the single-chip microcomputer is fixedly installed inside the electric control box.

[0010] As a preferred technical solution of the present utility model, the length of the monitoring part is 1.3 times the length of the piston section.

[0011] As a preferred technical solution of the utility model, guide tubes slidably connected to the guide screws are installed on the pressure plate and the positioning plate and at positions corresponding to each guide screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. When the utility model is working, on the basis of satisfying the buckling strength detection function of piston rods of different sizes, it can also monitor the multi-point bidirectional buckling deformation of the piston rod, thereby effectively improving the buckling detection accuracy of the hydraulic cylinder.

[0014] 2. Before the use of the utility model, the position of the positioning plate on the frame is adjusted and limited by setting the limit nut. By adjusting the position of the positioning plate, the frame is suitable for the installation of different cylinders to be tested. The number of distance measuring probes installed on the monitoring part can be customized according to actual needs. During the detection, the pressure cylinder gradually applies pressure to the cylinder to be tested. By setting the spoke-type tension and pressure sensor, the pressure applied to the cylinder to be tested by the spoke-type tension and pressure sensor is monitored in real time. By setting the distance measuring probe, the deformation amount and curvature of the piston segment are quickly detected from the bendable direction of the piston segment, and then the curvature of the piston segment and the shape after curvature are monitored in multiple points and in two directions, so as to finally measure the buckling strength of the cylinder to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a structural schematic diagram of a frame of a hydraulic cylinder buckling strength verification machine of the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0018] Figure 4 It is a structural schematic diagram of the spoke type tension and pressure sensor and the piston section of the utility model.

[0019] In the figure: 1. frame; 2. guide screw; 3. pressure plate; 4. positioning plate; 5. pressure cylinder; 6. spoke-type tension pressure sensor; 7. hinge seat; 8. cylinder to be tested; 9. piston section; 10. hinge shaft; 11. inspection plate; 12. monitoring part; 13. distance measuring probe; 14. limit nut; 15. clamp; 16. clamping ring; 17. connecting rod; 18. clamping screw; 19. electric control box; 20. single chip microcomputer. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 to 4 As shown, the utility model provides a hydraulic cylinder buckling strength verification machine frame, including a frame body 1, a group of guide screws 2 are installed on the frame body 1, and a slidable pressure plate 3 and a position-adjustable positioning plate 4 are respectively installed on the surface of the frame body 1 through the group of guide screws 2;

[0022] The positioning plate 4 is slidably connected to the guide screw 2;

[0023] A guide tube slidably connected to the guide screw 2 is installed on the pressure plate 3 and the positioning plate 4 and at a position corresponding to each guide screw 2;

[0024] Limiting nuts 14 are threadedly installed on the guide screw 2 and at positions corresponding to both sides of the positioning plate 4;

[0025] By setting the limiting nut 14, the position of the positioning plate 4 on the frame is adjusted and limited;

[0026] By adjusting the position of the positioning plate 4, the frame can be adapted to the installation of different cylinders 8 to be tested;

[0027] A pressure cylinder 5 is installed between the frame 1 and the opposing surface of the pressure plate 3. A spoke type tension pressure sensor 6 is installed on the pressure plate 3. The detection end of the spoke type tension pressure sensor 6 is connected to a hinge seat 7.

[0028] A clamping assembly is installed on the positioning plate 4, and a cylinder 8 to be tested is clamped on the clamping assembly;

[0029] The clamping assembly is provided with two inspection plates 11 with adjustable spacing;

[0030] The clamping assembly includes a clamping ring 16 and two clamps 15 symmetrically arranged and slidably connected to the positioning plate 4. The two inspection plates 11 are fixedly connected to the two clamps 15 respectively. A connecting rod 17 is hinged between the clamping ring 16 and the opposite surfaces of the two clamps 15. A clamping screw 18 is rotatably connected to the positioning plate 4. The clamping screw 18 is transmission-connected to the clamping ring 16. The axial direction of the clamping screw 18 is the same as the axial direction of the cylinder 8 to be tested.

[0031] The cylinder 8 to be tested is provided with a piston section 9, and the end of the piston section 9 is hinged to the hinge seat 7 through a hinge shaft 10;

[0032] By setting the hinge shaft 10, the piston section 9 can bend when the load exceeds the extreme value;

[0033] Each inspection plate 11 is provided with a monitoring unit 12 , and a group of distance measuring probes 13 are installed on the monitoring unit 12 .

[0034] The length of the monitoring portion 12 is 1.3 times the length of the piston section 9;

[0035] The number of distance measuring probes 13 installed on the monitoring unit 12 can be customized according to actual needs;

[0036] By setting the distance measuring probe 13, the deformation amount and curvature of the piston segment 9 can be quickly detected from the bendable direction of the piston segment 9, and then the curvature and the shape of the piston segment 9 after bending can be monitored at multiple points;

[0037] The axial direction of the distance measuring probe 13 is perpendicular to the axial direction of the cylinder 8 to be measured, the axes of the distance measuring probe 13 and the cylinder 8 to be measured are parallel to the horizontal plane, the axial direction of the cylinder 8 to be measured is perpendicular to the axial direction of the hinge shaft 10, and the axis of the hinge shaft 10 is perpendicular to the horizontal plane.

[0038] An electric control box 19 is installed on the frame 1, and a single-chip microcomputer 20 is installed on the end face of the electric control box 19. The data ends of the ranging probe 13 and the spoke-type tension and pressure sensor 6 are electrically connected to the single-chip microcomputer 20. A battery electrically connected to the single-chip microcomputer 20 is fixedly installed inside the electric control box 19.

[0039] The working principle and use process of this utility model:

[0040] Before use, the position of the positioning plate 4 on the frame is adjusted and limited by the setting of the limit nut 14. By adjusting the position of the positioning plate 4, the frame can be suitable for the installation of different cylinders 8 to be tested. The number of distance measuring probes 13 installed on the monitoring part 12 can be customized according to actual needs. During detection, the pressure cylinder 5 gradually applies pressure to the cylinder 8 to be tested. The spoke-type tension and pressure sensor 6 is set to monitor the pressure applied to the cylinder 8 to be tested by the spoke-type tension and pressure sensor 6 in real time. The distance measuring probe 13 is set to quickly detect the deformation and curvature of the piston segment 9 from the bendable direction of the piston segment 9, and then the curvature of the piston segment 9 and the shape after bending are monitored in multiple points and in both directions, so as to finally measure the bending strength of the cylinder 8 to be tested.

[0041] 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.

[0042] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder buckling strength verification machine frame, comprising a frame body (1), characterized in that: A group of guide screws (2) are installed on the frame (1), and a slidable pressure plate (3) and a position-adjustable positioning plate (4) are respectively installed on the surface of the frame (1) through a group of guide screws (2). A pressure cylinder (5) is installed between the relative surfaces of the frame (1) and the pressure plate (3). A spoke-type tension and pressure sensor (6) is installed on the pressure plate (3), and the detection end of the spoke-type tension and pressure sensor (6) is connected to a hinge seat (7). A clamping assembly is installed on the positioning plate (4), and a cylinder (8) to be tested is clamped on the clamping assembly. The cylinder (8) to be tested is provided with a piston section (9), and the end of the piston section (9) is hinged to the hinge seat (7) through a hinge shaft (10). Two inspection plates (11) with adjustable spacing are provided on the clamping assembly, and each of the inspection plates (11) is provided with a monitoring part (12), and a group of distance measuring probes (13) are installed on the monitoring part (12).

2. The frame of the hydraulic cylinder buckling strength verification machine according to claim 1, characterized in that: The positioning plate (4) is slidably connected to the guide screw (2), and position-limiting nuts (14) are threadedly mounted on the guide screw (2) at positions corresponding to both sides of the positioning plate (4).

3. A hydraulic cylinder buckling strength verification machine frame according to claim 2, characterized in that: The clamping assembly comprises a clamping ring (16) and two clamps (15) symmetrically arranged and slidably connected to the positioning plate (4); the two inspection plates (11) are respectively fixedly connected to the two clamps (15); connecting rods (17) are hinged between the opposing surfaces of the clamping ring (16) and the two clamps (15); a clamping screw (18) is rotatably connected to the positioning plate (4); the clamping screw (18) is transmission-connected to the clamping ring (16); and the axial direction of the clamping screw (18) is the same as the axial direction of the cylinder (8) to be tested.

4. A hydraulic cylinder buckling strength verification machine frame according to claim 3, characterized in that: The axial direction of the distance measuring probe (13) is perpendicular to the axial direction of the cylinder (8) to be measured, the axes of the distance measuring probe (13) and the cylinder (8) to be measured are both parallel to the horizontal plane, the axial direction of the cylinder (8) to be measured is perpendicular to the axial direction of the hinge shaft (10), and the axis of the hinge shaft (10) is perpendicular to the horizontal plane.

5. The frame of the hydraulic cylinder buckling strength verification machine according to claim 4, characterized in that: An electric control box (19) is installed on the frame (1), a single-chip microcomputer (20) is installed on the end surface of the electric control box (19), the data ends of the distance measuring probe (13) and the spoke-type tension and pressure sensor (6) are electrically connected to the single-chip microcomputer (20), and a storage battery electrically connected to the single-chip microcomputer (20) is fixedly installed inside the electric control box (19).

6. The frame of the hydraulic cylinder buckling strength verification machine according to claim 5, characterized in that: The length of the monitoring portion (12) is 1.3 times the length of the piston section (9).

7. The frame of the hydraulic cylinder buckling strength verification machine according to claim 2, characterized in that: A guide tube slidably connected to the guide screw (2) is installed on the pressure plate (3) and the positioning plate (4) at a position corresponding to each guide screw (2).

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