Portable device for testing performance of spring in pipe scraper

Abstract

The utility model discloses a portable device for testing the performance of a spring in a pipe scraper, which comprises a limiting bottom plate, one end of the limiting bottom plate is connected with one end of a waist plate supporting frame, the other end of the waist plate supporting frame is connected with a cross beam supporting frame in an inserted mode, a displacement sensor is installed on the cross beam supporting frame, and a threaded hole is formed in one side of the displacement sensor. The threaded hole is matched with a stroke rod, the lower end of the stroke rod is connected with a bearing supporting sleeve through a thrust ball bearing, the lower end of the bearing supporting sleeve is in threaded connection with a force measuring sensor, a sleeve is arranged at the upper end of the stroke rod, and the upper end of the stroke rod is connected with a force applying rod in an inserted mode. According to the utility model, a detachable design is adopted, the size is small, the weight is light, the device can be conveniently carried to various operation sites, the device is not limited by sites, and springs on tubular column parts can be tested anytime and anywhere; and meanwhile, the device is simple in structure and easy to operate, and the professional requirements on operators are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of spring performance testing, specifically to a portable device for testing the performance of springs inside a scraper. Background Technology

[0002] Existing spring testing devices are mostly large, fixed equipment, which are bulky, heavy, and poorly adaptable. Their operation is complex, typically requiring the design of spring fixtures and installation and commissioning by specialized personnel. The testing process is cumbersome and inconvenient to carry to the field. For tubular components like scrapers, where spring performance needs to be frequently tested at different work sites, these devices fail to meet the requirements for efficiency and convenience. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a portable device for testing the performance of the internal spring of a scraper, which can be easily carried to different work sites, directly installed and used, and accurately tested for the spring's stroke and force.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a portable device for testing the performance of the internal spring of a scraper, comprising a limiting base plate, one end of which is connected to one end of a waist plate support frame, the other end of which is inserted into a crossbeam support frame, a displacement sensor is installed on the crossbeam support frame and a threaded hole is opened on one side of the displacement sensor, the threaded hole of the displacement sensor cooperates with a stroke rod, the lower end of the stroke rod is connected to a bearing support sleeve through a thrust ball bearing, the lower end of the bearing support sleeve is connected to a force sensor through a thread, a sleeve is provided at the upper end of the stroke rod, and the upper end of the stroke rod is inserted into a force-applying rod.

[0005] The limiting base plate is provided with a limiting arc groove.

[0006] The waist support frame is a structure in which the web plate and the stiffening rib are integrally formed, and the waist support frame is welded to the limiting base plate.

[0007] The bearing support sleeve has a semi-open, detachable structure.

[0008] The displacement sensor is a laser displacement sensor and is electrically connected to the displacement display screen.

[0009] The force sensor is a spoke-type force sensor and is electrically connected to the force sensor display screen.

[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model adopts a detachable design, is small in size and light in weight, and can be easily carried to various work sites without being restricted by the site. It can test the springs on the tubular components anytime and anywhere. At the same time, this device has a simple structure and is easy to operate, which effectively reduces the professional requirements for operators. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings:

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a partially enlarged view of the present invention;

[0014] In the diagram: 1. Limiting base plate; 11. Limiting arc groove; 2. Waist plate support frame; 3. Crossbeam support frame; 4. Displacement sensor; 5. Stroke rod; 6. Thrust ball bearing; 7. Bearing support sleeve; 8. Force sensor; 9. Force extension rod. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0016] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments. Example

[0017] like Figures 1 to 2 As shown, this utility model provides a portable device for testing the performance of the internal spring of a scraper, including a limiting base plate 1. One end of the limiting base plate 1 is connected to one end of a waist plate support frame 2, and the other end of the waist plate support frame 2 is inserted into a crossbeam support frame 3. A displacement sensor 4 is installed on the crossbeam support frame 3, and a threaded hole is opened on one side of the displacement sensor 4. The threaded hole of the displacement sensor 4 cooperates with a stroke rod 5. The lower end of the stroke rod 5 is connected to a bearing support sleeve 7 through a thrust ball bearing 6. The lower end of the bearing support sleeve 7 is connected to a force sensor 8 through a thread. The upper end of the stroke rod 5 is inserted into a force-applying rod 9. The limiting base plate 1 is provided with a limiting arc groove 11.

[0018] The limiting base plate 1 and the waist plate support frame 2 are connected as the main support body. The scraper under test is placed on the limiting arc groove 11 for easy positioning. The waist plate support frame 2 and the crossbeam support frame 3 are connected by a plug-in method for easy assembly and disassembly. The displacement sensor 4 detects the downward movement of the stroke rod 5, which is the compression of the spring on the scraper. The force sensor 8 is used to detect the elastic force of the spring on the scraper. The thrust ball bearing 6 is mounted on the stroke rod 5, and the seat is placed on the bearing support sleeve 7 to ensure that the bearing support sleeve 7 does not rotate with the stroke rod 5. The stroke rod 5 is connected to the threaded hole 31 of the crossbeam support frame 3 by rotating the force rod 9 for up and down transmission. In order to better rotate the force rod 9, the force rod 9 adopts a hand grip textured design. The detachable design between the components improves the portability of the device.

[0019] Specifically, the waist plate support frame 2 is a structure in which the web plate and the stiffening rib are integrally formed, and the waist plate support frame 2 is welded to the limiting base plate 1; the structure in which the web plate and the stiffening rib are integrally formed has good bending strength, and can resist bending stress when the spring of the scraper under test is tested.

[0020] Specifically, in order to facilitate the assembly of the thrust ball bearing 6 and the stroke rod 5, the bearing support sleeve 7 is a semi-open detachable structure, and the detachable parts are fixed with screws after assembly.

[0021] Specifically, the displacement sensor 4 is a laser displacement sensor and is electrically connected to the displacement display screen; the force sensor 8 is a spoke-type force sensor and is electrically connected to the force sensor display screen; the compression and elasticity values ​​of the spring of the scraper being tested can be observed more intuitively through the corresponding display screen.

[0022] Working principle: The spring-loaded scraper is placed on the limiting base plate 1 with the limiting arc groove 11 and pressed down with a clamping device (not shown in the figure). The force-applying rod 9 is rotated, causing the stroke rod 5 to move downwards until it contacts the spring-loaded scraper and the force sensor 8 does not register a value. At this point, the displacement sensor 4 is reset to zero. Testing begins. The force-applying rod 9 is rotated further, causing the stroke rod 5 to move downwards. The values ​​from the displacement sensor 4 and the force sensor 8 are analyzed to evaluate the spring performance.

[0023] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A portable device for testing the performance of the internal spring of a scraper, characterized in that, Includes a limiting base plate (1), one end of which is connected to one end of a waist plate support frame (2), and the other end of which is inserted into a crossbeam support frame (3). A displacement sensor (4) is installed on the crossbeam support frame (3) and a threaded hole is opened on one side of the displacement sensor (4). The threaded hole of the displacement sensor (4) is matched with a stroke rod (5). The lower end of the stroke rod (5) is connected to a bearing support sleeve (7) through a thrust ball bearing (6). The lower end of the bearing support sleeve (7) is connected to a force sensor (8) through a thread. The upper end of the stroke rod (5) is inserted into a force-adding rod (9).

2. The portable device for testing the performance of the internal spring of a scraper according to claim 1, characterized in that, The limiting base plate (1) is provided with a limiting arc groove (11).

3. The portable device for testing the performance of the internal spring of a scraper according to claim 1, characterized in that, The waist support frame (2) is a structure in which the web and the stiffening rib are integrally formed, and the waist support frame (2) is welded to the limiting base plate (1).

4. The portable device for testing the performance of the internal spring of a scraper according to claim 1, characterized in that, The bearing support sleeve (7) is a semi-open, detachable structure.

5. A portable device for testing the performance of the internal spring of a scraper according to claim 1, characterized in that, The displacement sensor (4) is a laser displacement sensor and is electrically connected to the displacement display screen.

6. The portable device for testing the performance of the internal spring of a scraper according to claim 1, characterized in that, The force sensor (8) is a spoke-type force sensor and is electrically connected to the force sensor display screen.

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