Servo pressure testing machine convenient to move up and down

Abstract

The utility model discloses a servo pressure testing machine convenient to move up and down, which belongs to the technical field of pressure testing machines and comprises a mounting box, lead screws are arranged on the periphery of the top of the mounting box, single-layer chain wheels are arranged at the bottom ends of the lead screws, a servo motor is arranged in the mounting box, and the top output shaft end of the servo motor is connected with the input end of a reduction gearbox. The output end of the reduction gearbox is provided with a multi-layer chain wheel, the multi-layer chain wheel is in meshed connection with the single-layer chain wheel through a chain, the top of the installation box is provided with a pressure testing platform, the pressure testing platform is in spiral connection with the lead screw through a threaded sleeve, and the pressure testing platform is in spiral connection with the lead screw through the threaded sleeve. The lead screw is driven through the single-layer chain wheel, the chain, the multi-layer chain wheel, the servo motor and the reduction gearbox, and the threaded sleeve drives the pressure testing platform to ascend and descend along the track of the lead screw, so that the height of the pressure testing platform is adjusted according to the size of a workpiece to be tested, and the applicability of the equipment is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure testing machines, and in particular relates to a servo pressure testing machine which is convenient for moving up and down. Background Art

[0002] Pressure testing machine, also known as electronic pressure testing machine, is mainly suitable for various physical and mechanical property tests of rubber, plastic sheets, pipes, special-shaped materials, plastic films, wires and cables, waterproof membranes, metal wires, cartons and other materials. It is necessary equipment to understand the physical and mechanical properties of materials.

[0003] At present, most of the existing servo pressure testing machines set the pressure plate at the bottom of the pressure testing platform and fix the pressure testing platform just above the placement table to ensure its stability. This results in the spacing between the placement table and the pressure testing platform being limited. For workpieces larger than the spacing between the two, pressure testing cannot be performed, which greatly reduces the applicability of the equipment. For this reason, we propose a servo pressure testing machine that is easy to move up and down. Utility Model Content

[0004] The utility model aims to provide a servo pressure testing machine which is convenient for moving up and down, so as to solve the existing problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a servo pressure testing machine that is easy to move up and down, including an installation box, a lead screw and a multi-layer sprocket, a plurality of lead screws are movably connected to the top of the installation box through bearings, a single-layer sprocket is fixedly arranged at the bottom end of the lead screw, a servo motor is fixedly installed at the center position of the inner bottom end of the installation box, the top output shaft end of the servo motor is fixedly connected to the input end of the reduction box, a multi-layer sprocket is fixedly installed at the output end of the reduction box, the multi-layer sprocket is meshed and connected with the single-layer sprocket of the corresponding height through a plurality of chains, a pressure testing platform is arranged on the top of the installation box, and the pressure testing platform is spirally connected to the lead screw through threaded sleeves.

[0006] Preferably, a pressure testing plate slidably connected to the inner bottom end of the pressure testing platform is provided, a rear pressure sensor is fixedly embedded on the bottom surface of the pressure testing plate, a hydraulic cylinder is fixedly installed at the center position of the inner top wall of the pressure testing platform, and the bottom hydraulic rod of the hydraulic cylinder is fixedly connected to the top center position of the pressure testing plate.

[0007] Preferably, a top plate is provided on the top of the lead screw, and the top of the lead screw is movably connected to the top plate via a bearing.

[0008] Preferably, telescopic guide rods are provided around the inner top wall of the pressure testing platform, and the bottom of the telescopic guide rods is fixedly connected to the top of the pressure testing plate.

[0009] Preferably, limiting grooves are provided on both sides of the interior of the pressure testing platform, and limiting blocks are provided on both sides of the top of the pressure testing plate. The limiting blocks extend into the interior of the limiting grooves and are slidably connected to the inner walls thereof.

[0010] Preferably, a buried component is provided at the bottom of the installation box, and the buried component is fixed around the bottom of the installation box by welding.

[0011] Preferably, a placement table is provided on the top of the installation box, and the bottom of the placement table is fixedly installed at the top center position of the installation box by means of inlay.

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

[0013] 1. The pressure test platform is spirally connected to the lead screw by using a threaded sleeve, and the lead screw is driven by a single-layer sprocket, a chain, a multi-layer sprocket, a servo motor and a reduction gearbox. The threaded sleeve drives the pressure test platform to rise and fall along the trajectory of the lead screw, so that the pressure test platform can have the function of lifting and lowering adjustment, so that the height of the pressure test platform can be adjusted according to the size of the workpiece to be tested, which greatly improves the applicability of the equipment.

[0014] 2. By setting buried parts at the bottom of the installation box, the stability of the overall equipment after installation is increased, and the top plate is used to limit the lead screw. It is inevitable that the top of the lead screw will shake, affecting the stability of the pressure test platform and causing inaccurate test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the chain and multi-layer sprocket structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the lifting platform structure of the utility model.

[0019] In the figure: 1. Installation box; 2. Placement table; 3. Buried parts; 4. Screw; 5. Top plate; 6. Single-layer sprocket; 7. Chain; 8. Servo motor; 9. Reducer; 10. Multi-layer sprocket; 11. Pressure test platform; 12. Threaded sleeve; 13. Pressure test plate; 14. Pressure sensor; 15. Hydraulic cylinder; 16. Telescopic guide rod; 17. Limit groove; 18. Limit block. 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] See also Figure 1-4 The utility model provides a technical solution of a servo pressure testing machine which is easy to move up and down: it includes an installation box 1, a lead screw 4 and a multi-layer sprocket 10. A plurality of lead screws 4 are movably connected to the top of the installation box 1 through bearings. A single-layer sprocket 6 is fixedly arranged at the bottom end of the lead screw 4. A servo motor 8 is fixedly installed at the center position of the inner bottom end of the installation box 1. The top output shaft end of the servo motor 8 is fixedly connected to the input end of a reduction box 9. A multi-layer sprocket 10 is fixedly installed at the output end of the reduction box 9. The multi-layer sprocket 10 is meshed and connected with the single-layer sprocket 6 of the corresponding height through a plurality of chains 7. A pressure testing platform 11 is arranged on the top of the installation box 1. The pressure testing platform 11 is spirally connected to the lead screw 4 through threaded sleeves 12 arranged around it.

[0022] Specifically, a pressure testing plate 13 slidably connected to the pressure testing platform 11 is provided at the inner bottom end, a rear pressure sensor 14 is fixedly embedded on the bottom surface of the pressure testing plate 13, a hydraulic cylinder 15 is fixedly installed at the center position of the inner top wall of the pressure testing platform 11, and the bottom hydraulic rod of the hydraulic cylinder 15 is fixedly connected to the top center position of the pressure testing plate 13.

[0023] Specifically, a top plate 5 is provided on the top of the lead screw 4, and the top of the lead screw 4 is movably connected to the top plate 5 via a bearing.

[0024] Specifically, telescopic guide rods 16 are provided around the inner top wall of the pressure testing platform 11 , and the bottom of the telescopic guide rod 16 is fixedly connected to the top of the pressure testing plate 13 .

[0025] Specifically, limiting grooves 17 are provided on both sides of the interior of the pressure testing platform 11 , and limiting blocks 18 are provided on both sides of the top of the pressure testing plate 13 . The limiting blocks 18 extend into the interior of the limiting grooves 17 and are slidably connected to the inner walls thereof.

[0026] Specifically, a buried component 3 is disposed at the bottom of the installation box 1 , and the buried component 3 is fixed around the bottom of the installation box 1 by welding.

[0027] Specifically, a placement table 2 is provided on the top of the installation box 1 , and the bottom of the placement table 2 is fixedly installed at the top center position of the installation box 1 by means of inlaying.

[0028] In this embodiment, during use, when the workpiece to be tested is too large to fit on the placement table 2, the servo motor 8 can be driven to rotate, and after being decelerated by the reduction gear box 9, the power can be transmitted to the multi-layer sprocket 10, and then through the meshing connection between the multi-layer sprocket 10 and the chain 7, the power is transmitted to the single-layer sprocket 6 through the chain 7, so that it drives the screw 4 to rotate synchronously. Since the pressure testing platform 11 is spirally connected to the screw 4 through the threaded sleeve 12, the threaded sleeve 12 can be driven to lift and lower the pressure testing platform 11 during the rotation of the screw 4, thereby achieving the purpose of adjusting the height of the pressure testing platform 11, so as to facilitate pressure testing of workpieces of different sizes. After the adjustment is completed, the hydraulic cylinder 15 is used to drive the hydraulic rod at the bottom thereof to press down with the pressure testing plate 13, so that it applies pressure to the workpiece on the placement table 2, and the pressure is monitored by the pressure sensor 14, and the pressure value is recorded in real time, thereby achieving the purpose of pressure testing.

[0029] 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 servo pressure testing machine that is easy to move up and down, comprising a mounting box (1), a lead screw (4) and a multi-layer sprocket (10), characterized in that: A plurality of lead screws (4) are movably connected to the top of the installation box (1) via bearings, a single-layer sprocket (6) is fixedly arranged at the bottom end of the lead screw (4), a servo motor (8) is fixedly installed at the center position of the inner bottom end of the installation box (1), the top output shaft end of the servo motor (8) is fixedly connected to the input end of the reduction box (9), a multi-layer sprocket (10) is fixedly installed at the output end of the reduction box (9), the multi-layer sprocket (10) is meshedly connected to the single-layer sprocket (6) of corresponding height via a plurality of chains (7), a pressure test platform (11) is arranged on the top of the installation box (1), and the pressure test platform (11) is spirally connected to the lead screw (4) via threaded sleeves (12) arranged on the periphery.

2. A servo pressure testing machine that is easy to move up and down according to claim 1, characterized in that: The inner bottom end of the pressure testing platform (11) is provided with a pressure testing plate (13) slidably connected thereto, a rear pressure sensor (14) is fixedly embedded on the bottom surface of the pressure testing plate (13), a hydraulic cylinder (15) is fixedly installed at the center position of the inner top wall of the pressure testing platform (11), and the bottom hydraulic rod of the hydraulic cylinder (15) is fixedly connected to the top center position of the pressure testing plate (13).

3. A servo pressure testing machine that is easy to move up and down according to claim 1, characterized in that: A top plate (5) is provided on the top of the lead screw (4), and the top of the lead screw (4) is movably connected to the top plate (5) via a bearing.

4. A servo pressure testing machine that is easy to move up and down according to claim 1, characterized in that: A telescopic guide rod (16) is arranged around the inner top wall of the pressure test platform (11), and the bottom of the telescopic guide rod (16) is fixedly connected to the top of the pressure test plate (13).

5. A servo pressure testing machine that is easy to move up and down according to claim 2, characterized in that: Limiting grooves (17) are arranged on both sides of the interior of the pressure testing platform (11), and limiting blocks (18) are arranged on both sides of the top of the pressure testing plate (13), and the limiting blocks (18) extend into the interior of the limiting groove (17) and are slidably connected to the inner wall thereof.

6. A servo pressure testing machine that is easy to move up and down according to claim 1, characterized in that: The bottom of the installation box (1) is provided with a buried component (3), and the buried component (3) is fixedly arranged around the bottom of the installation box (1) by welding.

7. A servo pressure testing machine that is easy to move up and down according to claim 1, characterized in that: A placement platform (2) is provided on the top of the installation box (1), and the bottom of the placement platform (2) is fixedly installed at the top center position of the installation box (1) by means of inlay.

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