Suspension clamp mechanical load test tool

Abstract

The utility model relates to the technical field of suspension clamp mechanical load tests, and particularly discloses a suspension clamp mechanical load test tool, which comprises a positioning steel plate, a horizontal cross beam, a vertical dowel bar, a support plate, a hanger connecting piece and a hanger, supporting plates are arranged on the upper side faces and the lower side faces of the two ends of the two sub-beams correspondingly, the front ends and the rear ends of the supporting plates are connected with the two sub-beams correspondingly, and through holes are formed in the centers of the supporting plates. The positioning steel plate is arranged at the lower end of the horizontal cross beam, two positioning bolt holes are formed in the positioning steel plate, and the two positioning bolt holes are formed in the front side and the rear side of the horizontal cross beam respectively; the two vertical dowel bars penetrate through the through holes of the supporting plates arranged at the two ends of the horizontal cross beam respectively. The hanger connecting piece is arranged at the lower end of the vertical dowel bar; the two ends of the hanging tool are connected with the two hanging tool connecting pieces respectively.

Description

Technical Field

[0001] This application relates to the field of mechanical load testing technology for suspension clamps, and specifically to a mechanical load testing fixture for suspension clamps. Background Technology

[0002] Suspension clamps are an important type of overhead line hardware. Mechanical strength is a key characteristic and technical parameter reflecting the resistance of the clamp lugs and hull to mechanical failure. Testing and evaluating their load-bearing capacity is crucial for ensuring product quality and line safety.

[0003] The standard for mechanical load testing of suspension clamps requires testing under stress conditions simulating the use of the suspension clamps. Conventional testing fixtures mainly involve the mounting and coordination of flexible steel cable hangers with the suspension clamps.

[0004] However, the existing fixtures used for mechanical load testing of suspension clamps are bulky, heavy, difficult to assemble and disassemble, and have low work efficiency. Summary of the Invention

[0005] The purpose of this application is to provide a mechanical load testing fixture for suspension clamps, in order to solve the problems of existing fixtures for mechanical load testing of suspension clamps being bulky, heavy, difficult to assemble and disassemble, and inefficient.

[0006] To achieve the above objectives, this application provides a mechanical load testing fixture for a suspension clamp, comprising: a positioning steel plate, a horizontal beam, a vertical force transmission rod, a support plate, a hanger connector, and a hanger, wherein...

[0007] The horizontal beam includes two parallel sub-beams. Support plates are provided on the upper and lower sides of both ends of the two sub-beams. The front and rear ends of the support plates are connected to the two sub-beams respectively. A through hole is provided in the center of the support plate.

[0008] The positioning steel plate is set at the lower end of the horizontal beam, and two positioning bolt holes are opened on the positioning steel plate, and the two positioning bolt holes are respectively set on the front and rear sides of the horizontal beam.

[0009] There are two vertical force transmission rods, which pass through the through holes of the support plates set at both ends of the horizontal beam;

[0010] The hanger connector is located at the lower end of the vertical force transmission rod;

[0011] The two ends of the hanger are respectively connected to two hanger connectors.

[0012] Optionally, the dimensions of the positioning steel plate are: 10mm thick and 320mm x 300mm long x wide.

[0013] Optionally, the positioning bolt holes are located at the same position as the lifting bolt holes of the universal testing machine beam. The two positioning bolt holes are respectively opened on the center line of 300mm width, 140mm away from the longitudinal and transverse center of the positioning steel plate, and the diameter of the positioning bolt holes is 20mm.

[0014] Optionally, the sub-beam of the horizontal beam is a 14# I-beam with a length of 655mm.

[0015] Optionally, the dimensions of the support plate are: a thickness of 20mm, a length × width of 100mm × 140mm, and a through hole diameter of 38mm at the center of the support plate.

[0016] Optionally, the vertical force transmission rod has a diameter of 36mm, is made of 42CrMo, and has a length of 790mm, with threads at both ends.

[0017] Optionally, a nut is fitted onto the upper end of the vertical force transmission rod located above the horizontal beam, and the lower end of the vertical force transmission rod is threadedly connected to the hanger connector.

[0018] Optionally, the upper end of the hanger connector is axially threaded, the lower end of the hanger connector is provided with a connecting groove, and the two side walls of the connecting groove are vertically provided with first pin holes, and a pin is provided in the first pin holes.

[0019] The hanger connector is connected to the hanger via the pin.

[0020] Optionally, the hanger connector is a 42CrMo steel bar with a diameter of 100mm and a length of 115mm. The width of the connecting groove is 43.5mm, the depth is 65mm, the diameter of the pin hole is 25.5mm, and the fine-tooth internal thread machined at the axial center of the upper end of the hanger connector matches the thread at the lower end of the vertical force-bearing rod.

[0021] Optionally, the pin is 120mm long and 25mm in diameter;

[0022] The long side of the upper end of the hanger is set as an arc surface with a diameter consistent with the thickness of the hanger, and the two ends of the hanger are respectively provided with second pin holes along the width direction.

[0023] The embodiments of this application have the following advantages:

[0024] Compared with existing technologies, the suspension clamp mechanical load testing fixture provided by the above technical solution can be used on the WESE-1000 universal testing machine as a supplement to the original device and method; it is easy to install and disassemble, convenient to operate, and reliable in performance; the spreader of the device is easy to install and replace to meet the testing requirements of different specifications and models of clamps; it can significantly improve work efficiency and significantly reduce the time spent on each work step in the test process. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0026] Figure 1 A front view of a suspension clamp mechanical load testing fixture provided for at least one embodiment of this application;

[0027] Figure 2 A top view of a suspension clamp mechanical load testing fixture provided for at least one embodiment of this application;

[0028] Figure 3 This is a schematic diagram of a hanger connector for a suspension clamp mechanical load testing fixture provided in at least one embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Positioning steel plate, 2. Horizontal beam, 3. Vertical force transmission rod, 4. Support plate, 5. Hanger connector, 6. Hanger, 7. Sub-beam, 8. Positioning bolt hole, 9. Nut, 10. Connecting groove, 11. Pin. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0034] Generally, existing tooling is used. The steel wire rope is selected based on the size of the suspension clamp. After disassembling the tooling, the steel wire rope is installed, its length adjusted, and secured. The suspension clamp to be tested is then placed and secured. Next, 2 to 3 people work together to install the tooling onto the horizontal tensile testing machine. The steel wire rope and hooks are used to connect to the machine's pull head for testing. For testing different models and sizes of suspension clamps, the above process must be repeated, using steel wire ropes of different diameters. If the client requests a rigid connection method for testing, it is necessary to find a partner to assist in completing the test.

[0035] This application provides a suspension clamp mechanical load testing fixture, referencing... Figures 1 to 3 It includes: positioning steel plate 1, horizontal beam 2, vertical force transmission rod 3, support plate 4, hanger connector 5, and hanger 6, wherein:

[0036] The horizontal beam 2 includes two parallel sub-beams 7. Support plates 4 are provided on the upper and lower sides of the two sub-beams 7. The front and rear ends of the support plates 4 are connected to the two sub-beams 7 respectively. A through hole is provided in the center of the support plates 4.

[0037] The positioning steel plate 1 is set at the lower end of the horizontal beam 2. Two positioning bolt holes 8 are opened on the positioning steel plate 1, and the two positioning bolt holes 8 are respectively set on the front and rear sides of the horizontal beam 2.

[0038] There are two vertical force transmission rods 3, which pass through the through holes of the support plates 4 set at both ends of the horizontal beam 2 respectively;

[0039] The hanger connector 5 is located at the lower end of the vertical force transmission rod 3;

[0040] The two ends of the hanger 6 are respectively connected to two hanger connectors 5.

[0041] Specifically, this fixture replaces the flexible steel cable of the hanger 6 with a rigid steel cable, which means that the required suspension angle is no longer pursued, and the suspension angle of the suspension clamp is changed from a / 2 = 8°~10° to a / 2 = 0° for testing. In addition, to facilitate the installation, use and disassembly of the fixture, the positioning steel plate 1 and the horizontal beam 2 are welded together as a whole, and the vertical force transmission rod 3 and the 62 components of the hanger 6 are each composed of several independent detachable parts. The various components are connected by threads as much as possible, which can simultaneously meet the inspection and testing of multiple types of suspension clamps.

[0042] Specifically, the positioning steel plate 1 is connected to the horizontal beam 2, and the center positions of the positioning steel plate 1 and the horizontal beam 2 are aligned. The line connecting the two positioning bolt holes 8 with a diameter of 20mm forms a 90° angle with the horizontal beam 2.

[0043] In some embodiments, the dimensions of the positioning steel plate 1 are: 10mm thick and 320mm x 300mm long x wide.

[0044] Specifically, the outline dimensions of the positioning steel plate 1 are consistent with the top dimensions of the jaw beam of the universal testing machine. In some embodiments, the positioning bolt holes 8 are aligned with the lifting bolt holes of the universal testing machine beam, and the two positioning bolt holes 8 are respectively opened on the center line with a width of 300mm at a distance of 140mm from the longitudinal and transverse centers of the positioning steel plate 1, and the diameter of the positioning bolt holes 8 is 20mm.

[0045] In some embodiments, the sub-beam 7 of the horizontal beam 2 is a 14# I-beam with a length of 655mm. During the test, the load borne by the suspension clamp is transferred to the beam of the universal testing machine.

[0046] Specifically, 14# I-beams with a length of 655mm are aligned back to back with a 45mm gap. Four 140mm×100mm steel plates with δ=20mm are placed on the ends of the I-beams, one on the top and one on the bottom. After ensuring that the center holes of the top and bottom plates overlap, they are welded to the I-beams to form a whole, which is the horizontal beam 2.

[0047] In some embodiments, the dimensions of the support plate 4 are: a thickness of 20mm, a length × width of 100mm × 140mm, and a through hole diameter of 38mm at the center of the support plate 4.

[0048] In some embodiments, the vertical force transmission rod 3 has a diameter of 36mm, is made of 42CrMo, and has a length of 790mm. Both ends of the vertical force transmission rod 3 are threaded.

[0049] Specifically, one end of the vertical force transmission rod 3 is machined with a 210mm long standard coarse thread, and the other end is machined with a 50mm fine thread.

[0050] In some embodiments, the upper end of the vertical force transmission rod 3 located above the horizontal beam 2 is fitted with a nut 9, and the lower end of the vertical force transmission rod 3 is threadedly connected to the hanger connector 5.

[0051] In some embodiments, the upper end of the hanger connector 5 is axially threaded, the lower end of the hanger connector 5 is provided with a connecting groove 10, and the two side walls of the connecting groove 10 are vertically provided with first pin holes, and a pin 11 is provided in the first pin holes.

[0052] The hanger connector 5 is connected to the hanger 6 via the pin 11.

[0053] In some embodiments, the hanger connector 5 is a 42CrMo steel bar with a diameter of 100mm and a length of 115mm. The connecting groove 10 has a width of 43.5mm, a depth of 65mm, and a pin hole diameter of 25.5mm. The upper end of the hanger connector 5 is machined with a fine-tooth internal thread at the axial center to match the thread at the lower end of the vertical force-bearing rod.

[0054] In some embodiments, the pin 11 is 120mm long and 25mm in diameter.

[0055] In some embodiments, the long side of the upper end of the hanger 6 is set as an arc surface with a diameter consistent with the thickness of the hanger 6, and the two ends of the hanger 6 are respectively provided with second pin holes along the width direction.

[0056] Specifically, the second pin hole with a diameter of φ25mm and a hole spacing of 550mm, located 55mm from the arc surface, is used to connect the hanger 6 and the hanger connector 5 by passing the pin shaft 11 through the first pin hole and the second pin hole.

[0057] In summary, compared with existing technologies, the suspension clamp mechanical load testing fixture provided by the above technical solution can be used on the WESE-1000 universal testing machine as a supplement to the original device and method; it is easy to install and disassemble, convenient to operate, and reliable in performance; the spreader arm of the device is easy to install and replace to meet the testing requirements of clamps of different specifications and models; it can significantly improve work efficiency and significantly reduce the time spent on each work step in the test process.

[0058] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simple starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0059] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0060] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. A fixture for testing the mechanical load of a suspension clamp, characterized in that, include: Positioning steel plate, horizontal beam, vertical force transmission rod, support plate, hanger connector, hanger, among which, The horizontal beam includes two parallel sub-beams. Support plates are provided on the upper and lower sides of both ends of the two sub-beams. The front and rear ends of the support plates are connected to the two sub-beams respectively. A through hole is provided in the center of the support plate. The positioning steel plate is set at the lower end of the horizontal beam, and two positioning bolt holes are opened on the positioning steel plate, and the two positioning bolt holes are respectively set on the front and rear sides of the horizontal beam. There are two vertical force transmission rods, which pass through the through holes of the support plates set at both ends of the horizontal beam; The hanger connector is located at the lower end of the vertical force transmission rod; The two ends of the hanger are respectively connected to two hanger connectors.

2. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The dimensions of the positioning steel plate are: 10mm thick, 320mm long × 300mm wide.

3. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The positioning bolt holes are located in the same position as the lifting bolt holes of the universal testing machine beam. The two positioning bolt holes are respectively opened on the center line of 300mm width, 140mm away from the longitudinal and transverse center of the positioning steel plate, and the diameter of the positioning bolt holes is 20mm.

4. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The sub-beam of the horizontal beam is a 14# I-beam with a length of 655mm.

5. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The dimensions of the support plate are: 20mm thickness, 100mm length × 140mm width, and the diameter of the through hole in the center of the support plate is 38mm.

6. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The vertical force transmission rod has a diameter of 36mm, is made of 42CrMo, and has a length of 790mm. Both ends of the vertical force transmission rod are threaded.

7. The suspension clamp mechanical load testing fixture according to claim 6, characterized in that, The upper end of the vertical force transmission rod, located above the horizontal beam, is fitted with a nut, and the lower end of the vertical force transmission rod is threadedly connected to the hanger connector.

8. The suspension clamp mechanical load testing fixture according to claim 1, characterized in that, The upper end of the hanger connector is axially threaded, and the lower end of the hanger connector is provided with a connecting groove. The two side walls of the connecting groove are vertically provided with first pin holes, and a pin is provided in the first pin hole. The hanger connector is connected to the hanger via the pin.

9. The suspension clamp mechanical load testing fixture according to claim 8, characterized in that, The hanger connector is a 42CrMo steel bar with a diameter of 100mm and a length of 115mm. The width of the connecting groove is 43.5mm and the depth is 65mm. The diameter of the pin hole is 25.5mm. The upper end of the hanger connector is machined with a fine-tooth internal thread at the axial center to match the thread at the lower end of the vertical force-bearing rod.

10. The suspension clamp mechanical load testing fixture according to claim 8, characterized in that, The pin is 120mm long and 25mm in diameter; The long side of the upper end of the hanger is set as an arc surface with a diameter consistent with the thickness of the hanger, and the two ends of the hanger are respectively provided with second pin holes along the width direction.

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