Performance testing device for vertical displacement constant-force spring support hanger

Abstract

The invention discloses a performance testing device for a vertical displacement constant-force spring support hanger, belongs to the technical field of testing devices, and aims to solve the problem that an existing testing device is difficult to connect with a support hanger. The invention discloses a performance testing device for a vertical displacement constant-force spring support hanger, and the device comprises a connecting piece which is provided with a structure used for connecting a displacement pointer; and the force applying assembly is used for applying pulling force to the displacement pointer through the connecting piece and judging whether the constant degree and the load deviation of the vertical displacement constant-force spring support hanger meet the requirements or not according to the pulling force value. The performance testing device for the vertical displacement constant-force spring support hanger comprises the connecting piece and the force application assembly, the connecting piece enables testing tension to directly act on the displacement pointer, the displacement pointer can be pulled to descend at a constant speed, and therefore whether the constant degree and the load deviation of the vertical displacement constant-force spring support hanger meet the requirements or not is judged. The problem that an existing testing device is difficult to connect is solved, the requirement for testing site conditions is low, and use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to a vertical displacement constant force spring hanger performance testing device. Background Art

[0002] The vertical displacement constant force spring support hanger is a type of pipe support hanger that can provide constant tension when the pipe is displaced. After long-term use, the load-bearing performance of the vertical displacement constant force spring support hanger will deteriorate. If necessary, it is necessary to conduct on-site tests on its stability and load deviation.

[0003] Existing measurement methods include pulling the hanger rod through a dynamometer or applying pressure to the load output rod of the support hanger directly or indirectly through a hydraulic jack, obtaining the force value through a dynamometer or a hydraulic jack, and then judging the performance of the vertical displacement constant force spring support hanger.

[0004] The defects of existing measurement methods include: the end of the dynamometer is difficult to fix, the force application position of the hydraulic jack is difficult to fix, and it is time-consuming and labor-intensive. When the working environment is complex and changeable, it is difficult to find a suitable force application position, resulting in the inability to smoothly perform calibration tests and limiting the scope of application. Summary of the invention

[0005] The purpose of the present invention is to provide a vertical displacement constant force spring support hanger performance test device, which solves the problem of difficulty in connecting the existing test device with the support hanger and has a wide range of applications.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A vertical displacement constant force spring hanger performance testing device comprises: a connecting piece, on which a structure for connecting a displacement pointer is provided; and a force-applying component, for applying a pulling force to the displacement pointer through the connecting piece, and judging whether the constancy and load deviation of the vertical displacement constant force spring hanger meet the requirements by comparing the pulling force value applied by the force-applying component on the connecting piece.

[0008] In one of the preferred embodiments, the force-applying assembly includes a driving member, a transmission member adapted to the connecting member, and a transmission rod connected between the output end of the driving member and the transmission member. The driving member can move the connecting member through the transmission rod and the transmission member to pull the displacement pointer.

[0009] In one preferred embodiment, the transmission member is a gear, the connecting member is a gear plate with a toothed structure on the side, and the transmission member is meshed with the connecting member.

[0010] In one of the preferred embodiments, the vertical displacement constant force spring hanger performance testing device also includes a strain gauge for obtaining the tension value applied to the connecting member, and the strain gauge is connected to the displacement pointer.

[0011] In one of the preferred embodiments, the strain meter measures the strain value when the displacement pointer is pulled, and obtains the tension value applied to the connecting member according to tension = elastic modulus × strain × cross-sectional area.

[0012] In one of the preferred embodiments, the force-applying assembly includes at least two driving members, at least two transmission members and at least two transmission rods, and the two transmission members cooperate with the connecting member from two sides respectively.

[0013] In one of the preferred embodiments, the vertical displacement constant force spring support hanger performance testing device also includes a fixed frame, the force-applying assembly is installed on the fixed frame, and the fixed frame is connected to the support hanger.

[0014] In one of the preferred embodiments, the fixed frame is made of a magnetic material, and the vertical displacement constant force spring support hanger is made of a material that can be magnetically connected to the magnetic material.

[0015] In one of the preferred embodiments, a sleeve through hole is provided on the connecting member, and the sleeve through hole is sleeved on the displacement pointer.

[0016] In one of the preferred embodiments, the vertical displacement constant force spring hanger performance testing device also includes a sleeve extension, and the sleeve extension is connected to the end of the displacement pointer.

[0017] The vertical displacement constant force spring hanger performance test device disclosed in the present invention comprises a connecting piece and a force application component. The connecting piece directly applies the test tension to the displacement pointer, which can pull the displacement pointer down at a uniform speed, thereby judging whether the constancy and load deviation of the vertical displacement constant force spring hanger meet the requirements. The problem that the existing test device is difficult to connect is solved, the requirements for the test site conditions are low, the test results are more accurate, the application range is wide, and the use is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the support and hanger provided in a specific embodiment of the present invention when it is in use;

[0019] Figure 2 It is a structural schematic diagram of the support and hanger provided in a specific embodiment of the present invention when it is in a testing state;

[0020] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 is a side view of the support and hanger provided in a specific embodiment of the present invention when it is in a testing state;

[0022] Figure 5 is a bottom view of the support and hanger provided in a specific embodiment of the present invention when it is in a testing state;

[0023] Figure 6 It is a schematic diagram of the structure of a connecting piece provided in a specific embodiment of the present invention.

[0024] In the figure:

[0025] 1. Connector; 2. Driving member; 3. Transmission member; 4. Transmission rod; 5. Strain gauge; 6. Fixed frame; 11. Tooth structure; 12. Sleeve through hole; 13. Connector body; 100. Displacement pointer; 200. Support and hanger body; 201. Groove; 202. Connection end; 300. Hanging rod; 400. Pipe; 500. Connector; 600. Pipe clamp. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] This embodiment discloses a vertical displacement constant force spring support hanger performance test device, which is used to test the stability and load deviation of the vertical displacement constant force spring support hanger. The design principle of the currently commonly used constant force spring support hanger is based on the force or moment balance law, which provides a constant force when the pipeline is displaced. This embodiment is preferably for the vertical displacement constant force spring support hanger, and when working, the displacement pointer moves in the vertical direction.

[0033] like Figure 1 As shown, when the support and hanger is in normal use, a long groove 201 is provided on the support and hanger body 200, and the displacement pointer 100 is inserted into the groove 201. The displacement pointer 100 is directly or indirectly connected to the connection end 202 of the support and hanger body 200, and the connection end 202 is connected to the suspension rod 300, and then the pipe 400 is suspended through the connector 500 and the pipe clamp 600.

[0034] like Figures 2 to 5As shown, the vertical displacement constant force spring hanger performance testing device includes a connecting member 1 and a force-applying assembly. The connecting member 1 is provided with a structure for connecting a displacement pointer 100 , and the force-applying assembly is used to apply a tensile force to the displacement pointer 100 through the connecting member 1 .

[0035] When testing the performance of the support and hanger, the connector 500 needs to be disconnected first. If conditions permit, the suspension rod 300 can be directly removed from the connection end 202, and the displacement pointer 100 rebounds to the uppermost part of the stroke. The force-applying component applies corresponding tension on the connector 1 according to the test steps, and the displacement pointer 100 is pulled from the uppermost part of the stroke to the lowermost part of the stroke. By comparing the tension value applied by the force-applying component on the connector 1, it is determined whether the constancy and load deviation of the vertical displacement constant force spring support and hanger meet the requirements.

[0036] The connecting member 1 directly applies the test tension to the displacement pointer 100, which can pull the displacement pointer 100 down at a constant speed, thereby measuring the load of the vertical displacement constant force spring hanger. The problem that the existing test device is difficult to stably connect with the connection end 202 is solved, the requirements for the test site conditions are low, the application range is wide, the test results are more accurate, and the use is more convenient.

[0037] The specific structure of the force-applying component is not limited, as long as it can apply a pulling force to the displacement pointer 100. In this embodiment, the force-applying component includes a driving member 2, a transmission member 3, and a transmission rod 4, wherein the transmission member 3 is adapted to the connecting member 1, and the transmission rod 4 is connected between the output end of the driving member 2 and the transmission member 3. The driving member 2 can move the connecting member 1 through the transmission rod 4 and the transmission member 3, and the connecting member 1 moves along its own axis, thereby causing the displacement pointer 100 to move.

[0038] The specific structure of the driving member 2 is not limited, as long as it can move the connecting member 1 through the transmission rod 4 and the transmission member 3. In this embodiment, the driving member 2 can be, but is not limited to, a motor, with mature product performance, many product types to choose from, and low cost. The output shaft of the driving member 2 is connected to the transmission rod 4 to drive the transmission rod 4 to move or rotate, and the transmission member 3 is driven by the transmission rod 4, with fast action response speed and high test efficiency.

[0039] The specific structure of the transmission member 3 is not limited, as long as it can transmit the movement of the transmission rod 4 to the connecting member 1. In this embodiment, the transmission member 3 is a gear. Figure 6 As shown, the connector 1 includes a long strip-shaped connector body 13, and a tooth-shaped structure 11 is provided on at least one side of the connector body 13, that is, the connector 1 is a gear plate. Figure 4 As shown, the transmission member 3 is meshed with the connecting member 1, and the connecting member 1 is driven to move along its own axial direction by the rotation of the transmission member 3.

[0040] Based on the above structure, Figure 2As shown, the vertical displacement constant force spring hanger performance test device also includes a strain gauge 5 for obtaining the tension value applied to the connecting member 1. The specific structure of the strain gauge 5 is not limited. In this embodiment, the strain gauge 5 is a strain gauge, which can be connected to an external strain measurement device for strain measurement, is easy to use, and has high measurement accuracy.

[0041] The strain meter 5 is connected to the displacement pointer 100. During the vertical displacement constant force spring hanger performance test, the strain meter 5 can continuously measure the strain value on the displacement pointer 100, and the tension value applied to the connector 1 can be calculated using the stress-strain formula.

[0042] The strain gauge 5 measures the strain value when the displacement pointer 100 is pulled using the formula:

[0043] Stress = elastic modulus × strain

[0044] Tensile force = stress × cross-sectional area

[0045] That is, tension = elastic modulus × strain × cross-sectional area

[0046] In order to make the force on the connecting member 1 more balanced, Figures 2 to 5 As shown, the force-applying assembly includes at least two driving members 2, at least two transmission members 3 and at least two transmission rods 4. The two transmission members 3 cooperate with the connecting member 1 from both sides, and the two transmission members 3 have the same rotation speed, ensuring that the forces on both sides of the connecting member 1 are basically equal, and the connecting member 1 will not swing due to the force on one side.

[0047] The specific installation method of the force-applying component is not limited. In this embodiment, the vertical displacement constant force spring support hanger performance test device also includes a fixed frame 6. The fixed frame 6 is connected to the support hanger. Specifically, the fixed frame 6 is adsorbed on the bottom of the support hanger body 200, and the connection structure is more stable. The force-applying component is installed on the fixed frame 6. Specifically, the driving member 2 is fixed to the bottom of the fixed frame 6, one end of the transmission rod 4 is connected to the driving member 2, and the other end is connected and penetrated on the fixed frame 6, so that the structure of the transmission rod 4 is more stable, and at the same time, it does not affect the rotation of the transmission rod 4 around its own axis.

[0048] The specific connection method of "fixed frame 6 and support and hanger body 200" is not limited. In this embodiment, fixed frame 6 is made of magnetic material, and support and hanger body 200 is made of material that can be magnetically connected with magnetic material. When preparing for testing, firstly magnetically adsorb fixed frame 6 and support and hanger body 200 together, so that the installation of driving member 2, transmission member 3 and transmission rod 4 is more convenient.

[0049] The specific connection method between the connecting member 1 and the displacement pointer 100 is not limited. In this embodiment, Figures 2 to 6As shown, a sleeve through hole 12 is provided on the connector 1. The diameter of the sleeve through hole 12 is slightly larger than the diameter of the displacement pointer 100. During testing, the sleeve through hole 12 is sleeved on the displacement pointer 100. When the connector 1 moves along its axial direction, it can apply a pulling force or a pushing force to the displacement pointer 100, so that the displacement pointer 100 moves upward or downward. The connection structure is simple and easy to disassemble and assemble.

[0050] When the extension distance of the displacement pointer 100 is short, it is difficult for the sleeve through hole 12 to be sleeved on the displacement pointer 100. In order to solve this problem, the vertical displacement constant force spring hanger performance test device also includes a sleeve extension. The specific structure of the sleeve extension is not limited, as long as it can be stably connected to the end of the displacement pointer 100. Of course, a longer displacement pointer 100 can also be used to replace a shorter displacement pointer 100, so that the force on the connecting member 1 can be stably applied to the displacement pointer 100.

[0051] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Vertical displacement constant force spring support hanger performance test device, characterized in that: include: A connecting member (1) having a structure for connecting a displacement pointer (100); as well as, A force-applying component is used to apply a pulling force to the displacement pointer (100) through the connecting member (1), and to judge whether the constancy and load deviation of the vertical displacement constant force spring hanger meet the requirements by comparing the pulling force value applied by the force-applying component on the connecting member (1).

2. The vertical displacement constant force spring hanger performance testing device according to claim 1 is characterized in that: The force-applying assembly comprises a driving member (2), a transmission member (3) adapted to the connecting member (1), and a transmission rod (4) connected between an output end of the driving member (2) and the transmission member (3); the driving member (2) can move the connecting member (1) via the transmission rod (4) and the transmission member (3) to drive the displacement pointer (100).

3. The vertical displacement constant force spring hanger performance testing device according to claim 2 is characterized in that: The transmission member (3) is a gear, the connecting member (1) is a gear plate with a toothed structure (11) on the side, and the transmission member (3) is meshed with the connecting member (1).

4. The vertical displacement constant force spring hanger performance testing device according to claim 1 is characterized in that: The vertical displacement constant force spring hanger performance testing device further comprises a strain gauge (5) for obtaining the tension value applied to the connecting member (1), wherein the strain gauge (5) is connected to the displacement pointer (100).

5. The vertical displacement constant force spring hanger performance testing device according to claim 4 is characterized in that: The strain measuring device (5) measures the strain value when the displacement pointer (100) is pulled, and obtains the value of the pulling force applied to the connecting member (1) according to pulling force=elastic modulus×strain×cross-sectional area.

6. The vertical displacement constant force spring hanger performance testing device according to claim 2 is characterized in that: The force-applying assembly comprises at least two driving members (2), at least two transmission members (3) and at least two transmission rods (4), and the two transmission members (3) respectively cooperate with the connecting member (1) from two sides.

7. The vertical displacement constant force spring hanger performance testing device according to any one of claims 1 to 6, characterized in that: The vertical displacement constant force spring support hanger performance testing device also includes a fixed frame (6), the force application assembly is installed on the fixed frame (6), and the fixed frame (6) is connected to the support hanger.

8. The vertical displacement constant force spring hanger performance testing device according to claim 7, characterized in that: The fixed frame (6) is made of a magnetic material, and the vertical displacement constant force spring support hanger is made of a material that can be magnetically connected to the magnetic material.

9. The vertical displacement constant force spring hanger performance testing device according to any one of claims 1 to 6, characterized in that: The connecting member (1) is provided with a sleeve through hole (12), and the sleeve through hole (12) is sleeved on the displacement pointer (100).

10. The vertical displacement constant force spring hanger performance testing device according to claim 9, characterized in that: The vertical displacement constant force spring hanger performance testing device also includes a shaft sleeve extension, which is connected to the end of the displacement pointer (100).

Images