A mechanical performance test device for a wire rope shock absorber and a working method thereof

Abstract

The present invention belongs to the technical field of mechanical performance test, and specifically relates to a mechanical performance test device for a wire rope shock absorber and a working method thereof. The device comprises a horizontal plate, two side plates and a middle connecting plate, wherein: the horizontal plate is provided with a through-type horizontal plate slide groove, and a side plate bolt is slidably provided in the horizontal plate slide groove, and a side plate connecting hole is provided on the top of the side plate, and the side plate bolt passes through the horizontal plate slide groove to connect the side plate connecting hole; the sides of the two side plates are provided with specimen bolts for respectively connecting the specimen connecting holes of two wire rope shock absorber specimens; the two sides of the middle connecting plate are provided with clamping protrusions for respectively clamping the specimen connecting holes of two wire rope shock absorber specimens. The side plate is slidably connected to the bottom of the horizontal plate, and the wire rope shock absorber specimen is fixed by clamping and bolting. It is convenient to install and align, has a simple structure, low cost, and is easy to process and produce. It can be used for mechanical performance testing of wire rope shock absorber specimens of different models.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical performance testing, and in particular relates to a mechanical performance testing device for a wire rope shock absorber and a working method thereof. Background Art

[0002] Wire rope shock absorber is a new type of vibration isolation and shock prevention component developed by using modern vibration isolation and shock prevention theory. It can be widely used in a variety of power machinery, electronic equipment, transportation vehicles, ship machinery and equipment, and foundation-free vibration isolation. Therefore, it is very necessary to study the test technology of the mechanical characteristics of wire rope shock absorber, and use these technologies to test various materials and collect data.

[0003] At present, there are many problems in the conventional mechanical property test method of wire rope shock absorber: first, the specimen is irregular, the installation and alignment of the specimen is very difficult, and the design and production of the specimen fixture is also a problem; second, the wire rope shock absorber specimens are of different sizes, and it is necessary to design multiple sets of suitable test devices to measure their mechanical properties; third, the wire rope shock absorber basically works with prestress in reality, and the traditional test device cannot apply prestress to the wire rope shock absorber. The above problems have led to the fact that the mechanical property data of the wire rope shock absorber is still scarce or inaccurate, which seriously hinders the development and promotion of the wire rope shock absorber technology. Summary of the invention

[0004] In view of the problem that it is difficult to install and align the specimens of the conventional test device in the prior art, the present invention provides a mechanical property test device for a wire rope shock absorber and a working method thereof.

[0005] To achieve the above purpose, the technical solution of the present invention is as follows:

[0006] In the first aspect, a mechanical property test device for a wire rope shock absorber comprises a transverse plate, two side plates and a middle connecting plate, wherein:

[0007] The top of the transverse plate is fixedly connected with a first connecting rod;

[0008] The horizontal plate is provided with a through horizontal plate slide groove, a side plate bolt is slidably arranged in the horizontal plate slide groove, a side plate connecting hole is provided on the top of the side plate, and the side plate bolt passes through the horizontal plate slide groove and connects to the side plate connecting hole;

[0009] The sides of the two side plates are provided with specimen bolts for connecting the specimen connection holes of the two wire rope shock absorber specimens respectively;

[0010] The two sides of the middle connecting plate are provided with clamping protrusions for clamping the specimen connecting holes of the two wire rope shock absorber specimens respectively;

[0011] The bottom of the middle connecting plate is fixedly connected with a second connecting rod.

[0012] Furthermore, the two side plates are provided with through-type prestressed rod holes, and the prestressed rod holes on the two side plates are arranged opposite to each other;

[0013] Prestressed rods are passed through the prestressed rod holes opposite to each other on the two side plates, and prestressed rod bolts are threadedly connected at both ends of the prestressed rods. The prestressed rod bolts are located outside the two side plates.

[0014] Furthermore, both side surfaces of the middle connecting plate are provided with middle connecting plate sliding grooves, and the clamping protrusions are slidably arranged in the middle connecting plate sliding grooves.

[0015] Furthermore, the middle connecting plate slide groove is a "T"-shaped slide groove, and the clamping protrusion is a square-headed T-bolt.

[0016] Furthermore, the middle connecting plate slide groove is arranged vertically or horizontally.

[0017] Furthermore, a through-type side panel vertical slide groove is opened on the side surface of the side panel, and the test piece bolt is slidably arranged in the side panel vertical slide groove.

[0018] Furthermore, a through-type side panel horizontal slide groove is opened on the side surface of the side panel, and the test piece bolt is slidably arranged in the side panel horizontal slide groove.

[0019] In a second aspect, a working method of the wire rope shock absorber mechanical performance testing device comprises the following steps:

[0020] S1: Open the side panel bolts and slide the two side panels to both sides;

[0021] S2: Place the two wire rope shock absorber specimens to be tested vertically on both sides of the middle connecting plate and between the two side plates;

[0022] S3: Align the specimen bolt and the clamping protrusion with the specimen connection hole of the wire rope shock absorber specimen respectively and tighten the specimen bolt;

[0023] S4: Fix the first connecting rod to the top fixture of the universal testing machine, and fix the second connecting rod to the bottom fixture of the universal testing machine;

[0024] S5: start the universal testing machine and the sensor, the sensor collects the displacement data of the wire rope shock absorber specimen and sends it to the computer, and the universal testing machine sends the load data to the computer;

[0025] S6: The displacement data and the load data are processed and analyzed by a computer to obtain a load-displacement curve, and the mechanical properties of the wire rope shock absorber specimen are obtained according to the load-displacement curve.

[0026] Furthermore, the wire rope shock absorber specimen is placed horizontally or vertically.

[0027] Furthermore, the universal testing machine adopts displacement control or load control.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] First, the side plate is slidably connected to the bottom of the cross plate, and the wire rope shock absorber specimen is fixed by clamping and bolting. It is easy to install and align, has a simple structure, low cost, and is easy to process and produce. It can be used for mechanical property testing of wire rope shock absorber specimens of different models.

[0030] Second, the side plates are provided with horizontal and vertical slide grooves, and the middle connecting plates are provided with horizontal or vertical slide grooves correspondingly, which have a wide range of applications and can test the mechanical properties of the wire rope shock absorber specimens from multiple directions.

[0031] Third, setting up prestressed rods can apply prestress to the wire rope shock absorber specimen, making it more in line with the actual working conditions of the specimen and having good practical application significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0033] In the attached picture:

[0034] Figure 1 It is a schematic diagram of a first test working condition of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0035] Figure 2 It is a schematic diagram of the second test working condition of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0036] Figure 3 It is a schematic diagram of a horizontal plate of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0037] Figure 4 It is a schematic diagram of a side plate of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0038] Figure 5 It is a schematic diagram of a middle connecting plate of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0039] Figure 6 It is a schematic diagram of the wire rope shock absorber specimen;

[0040] Figure 7 It is a working schematic diagram of a mechanical performance test device for a wire rope shock absorber of the present invention;

[0041] Figure 8The present invention is a schematic diagram of the working method of a mechanical performance testing device for a wire rope shock absorber.

[0042] Among them: 1 is the first connecting rod; 2 is the cross plate; 21 is the cross plate slide groove; 3 is the prestressed rod; 4 is the wire rope shock absorber specimen; 41 is the specimen connecting hole; 5 is the side plate; 51 is the side plate horizontal slide groove; 52 is the side plate vertical slide groove; 53 is the side plate connecting hole; 54 is the prestressed rod hole; 6 is the middle connecting plate; 61 is the middle connecting plate slide groove; 62 is the clamping protrusion; 63 is the first bolt hole; 64 is the second bolt hole; 7 is the second connecting rod; 8 is the side plate bolt; 9 is the prestressed rod bolt; 10 is the specimen bolt. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0044] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0045] A wire rope shock absorber mechanical performance test device can be applied to at least two test conditions. The first test condition is as follows: Figure 1 As shown, the wire rope shock absorber specimen 4 is set vertically; the second test condition is as follows Figure 2 As shown, the wire rope shock absorber specimen 4 is arranged horizontally.

[0046] Example 1

[0047] like Figure 1 As shown, a mechanical property test device for a wire rope shock absorber includes a first connecting rod 1, a transverse plate 2, four prestressed rods 3, two side plates 5, a middle connecting plate 6 and a second connecting rod 7.

[0048] like Figure 3 As shown, the first end of the first connecting rod 1 is welded at the center of the plate surface of the horizontal plate 2, and the second end of the first connecting rod 1 is used to be fixed on the top fixture of the universal testing machine. The horizontal plate 2 is a rounded square plate, and four through-type horizontal plate slide grooves 21 are opened on the plate surface of the horizontal plate 2, which are evenly distributed in a 2×2 matrix.

[0049] like Figure 4As shown, a side panel connection hole 53 is provided at the top of the side panel 5, and the side panel connection hole 53 and the horizontal panel slide groove 21 of the horizontal panel 2 are arranged oppositely. The side panel 5 is slidably installed on the lower part of the horizontal panel 2 through the side panel bolt 8. The side panel 5 is a rounded square plate, and a through-type prestressed rod hole 54 is provided at the four corners of the side panel 5 surface, and the prestressed rod 3 slides in the prestressed rod hole 54. Prestressed rod bolts 9 are installed at both ends of each prestressed rod 3, and the prestressed rod bolts 9 are located on the outside of the two side panels 5, so as to limit the two side panels 5. A through-type side panel horizontal slide groove 51 and a side panel vertical slide groove 52 are provided on the side panel 5 surface, and the centers of the side panel horizontal slide groove 51 and the side panel vertical slide groove 52 intersect and are perpendicular to each other. The specimen bolt 10 is provided in the side panel horizontal slide groove 51 or the side panel vertical slide groove 52, and is used to fix the wire rope shock absorber specimen 4.

[0050] like Figure 5 As shown, the middle connecting plate 6 is located between the two side plates 5. The middle connecting plate 6 is a rounded square plate, including two side surfaces, two short surfaces and two long surfaces. A middle connecting plate slide groove 61 is provided in the middle of both side surfaces along the length direction of the long surface. The middle connecting plate slide groove 61 is a "T"-shaped slide groove, which is matched with a clamping protrusion 62. The clamping protrusion 62 is a square head T-bolt, which is slidably arranged in the middle connecting plate slide groove 61 and is used to fix the wire rope shock absorber specimen 4. A non-through first bolt hole 63 is provided at the center of the short surface of the middle connecting plate 6.

[0051] During the test, the middle connecting plate 6 is placed between the two side plates 5 so that the side surface is opposite to the plate surface of the side plate 5, and at the same time, the middle connecting plate slide groove 61 is horizontal, and the short surface is located at the bottom. The first bolt hole 63 is fixedly connected to the first end of the second connecting rod 7, and the second end of the second connecting rod 7 is fixed to the bottom fixture of the universal testing machine.

[0052] like Figure 6 As shown, there are specimen connecting holes 41 on both sides of the test wire rope shock absorber specimen 4. The specimen connecting hole 41 on the first side is fixedly connected to the clamping protrusion 62 to fix the wire rope shock absorber specimen 4 and the middle connecting plate 6. The specimen connecting hole 41 on the second side is connected to the specimen bolt 10 to fix the wire rope shock absorber specimen 4 and the side plate 5.

[0053] like Figure 7 and Figure 8 As shown, a working method of a wire rope shock absorber mechanical performance test device is based on a wire rope shock absorber mechanical performance test device, and specifically includes the following steps:

[0054] Step 11: Unscrew the side plate bolts 8 and the prestressed rod bolts 9, and slide the two side plates 5 to both sides to maximize the distance between the two side plates 5;

[0055] Step 12: vertically place two wire rope shock absorber specimens 4 to be tested on both sides of the middle connecting plate 6 and between the two side plates 5;

[0056] Step 13: Slide the specimen bolt 10 and the clamping protrusion 62 to face the specimen connection hole 41 of the wire rope shock absorber specimen 4, and tighten the specimen bolt 10;

[0057] Step 14: Fix the first connecting rod 1 on the top fixture of the universal testing machine, and fix the second connecting rod 7 on the bottom fixture of the universal testing machine;

[0058] Step 15: Tighten the prestressed rod bolts 9 on the left and right sides to apply prestress to the wire rope shock absorber specimen 4;

[0059] Step 16: The computer issues a loading instruction, and the universal testing machine uses displacement control or load control to drive the test device to move, thereby driving the wire rope shock absorber specimen 4 to move;

[0060] Step 17: The sensor collects the displacement data of the wire rope shock absorber specimen 4 and sends it to the computer. The computer integrates the displacement data and the load data, processes and analyzes them to obtain a load-displacement curve, thereby obtaining the mechanical properties of the wire rope shock absorber specimen 4.

[0061] Example 2

[0062] like Figure 2 As shown, a mechanical property test device for a wire rope shock absorber includes a first connecting rod 1, a transverse plate 2, four prestressed rods 3, two side plates 5, a middle connecting plate 6 and a second connecting rod 7.

[0063] like Figure 3 As shown, the first end of the first connecting rod 1 is welded at the center of the plate surface of the horizontal plate 2, and the second end of the first connecting rod 1 is used to be fixed on the top fixture of the universal testing machine. The horizontal plate 2 is a rounded square plate, and four through-type horizontal plate slide grooves 21 are opened on the plate surface of the horizontal plate 2, which are evenly distributed in a 2×2 matrix.

[0064] like Figure 4As shown, a side panel connection hole 53 is provided at the top of the side panel 5, and the side panel connection hole 53 and the horizontal panel slide groove 21 of the horizontal panel 2 are arranged oppositely. The side panel 5 is slidably installed on the lower part of the horizontal panel 2 through the side panel bolt 8. The side panel 5 is a rounded square plate, and a through-type prestressed rod hole 54 is provided at the four corners of the side panel 5 surface, and the prestressed rod 3 slides in the prestressed rod hole 54. Prestressed rod bolts 9 are installed at both ends of each prestressed rod 3, and the prestressed rod bolts 9 are located on the outside of the two side panels 5, so as to limit the two side panels 5. A through-type side panel horizontal slide groove 51 and a side panel vertical slide groove 52 are provided on the side panel 5 surface, and the centers of the side panel horizontal slide groove 51 and the side panel vertical slide groove 52 intersect and are perpendicular to each other. The specimen bolt 10 is provided in the side panel horizontal slide groove 51 or the side panel vertical slide groove 52, and is used to fix the wire rope shock absorber specimen 4.

[0065] like Figure 5 As shown, the middle connecting plate 6 is a rectangular plate with rounded corners, including two side surfaces, two short surfaces and two long surfaces. A middle connecting plate slot 61 is provided in the middle of the two side surfaces along the length direction of the long surface. The middle connecting plate slot 61 is a "T"-shaped slot, matched with a clamping protrusion 62. The clamping protrusion 62 is a square head T-bolt, which is slidably arranged in the middle connecting plate slot 61 and is used to fix the wire rope shock absorber specimen 4. A non-through second bolt hole 64 is provided at the center of the long surface of the middle connecting plate 6.

[0066] During the test, the middle connecting plate 6 is placed between the two side plates 5 so that the side surface is opposite to the plate surface of the side plate 5. At the same time, the middle connecting plate slide groove 61 is horizontal and the long surface is located at the bottom. The second bolt hole 64 is fixedly connected to the first end of the second connecting rod 7, and the second end of the second connecting rod 7 is fixed to the bottom fixture of the universal testing machine.

[0067] like Figure 6 As shown, there are specimen connecting holes 41 on both sides of the test wire rope shock absorber specimen 4. The specimen connecting hole 41 on the first side is fixedly connected to the clamping protrusion 62 to fix the wire rope shock absorber specimen 4 and the middle connecting plate 6. The specimen connecting hole 41 on the second side is connected to the specimen bolt 10 to fix the wire rope shock absorber specimen 4 and the side plate 5.

[0068] like Figure 7 and Figure 8 As shown, a working method of a wire rope shock absorber mechanical performance test device is based on a wire rope shock absorber mechanical performance test device, and specifically includes the following steps:

[0069] Step 21: Unscrew the side plate bolts 8 and the prestressed rod bolts 9, and slide the two side plates 5 to both sides to maximize the distance between the two side plates 5;

[0070] Step 22: vertically placing two wire rope shock absorber specimens 4 on both sides of the middle connecting plate 6 and between the two side plates 5;

[0071] Step 23: Slide the specimen bolt 10 and the clamping protrusion 62 to face the specimen connection hole 41 of the wire rope shock absorber specimen 4, and tighten the specimen bolt 10;

[0072] Step 24: Fix the first connecting rod 1 on the top fixture of the universal testing machine, and fix the second connecting rod 7 on the bottom fixture of the universal testing machine;

[0073] Step 25: Tighten the prestressed rod bolts 9 on the left and right sides to apply prestress to the wire rope shock absorber specimen 4;

[0074] Step 26: The computer issues a loading instruction, and the universal testing machine uses displacement control or load control to drive the test device to move, thereby driving the wire rope shock absorber specimen 4 to move;

[0075] Step 27: The sensor collects displacement data and sends it to the computer. The computer integrates the displacement data and the load data of the universal testing machine, processes and analyzes them to obtain a load-displacement curve, thereby obtaining the mechanical properties of the wire rope shock absorber specimen 4.

[0076] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A working method of a mechanical performance test device for a wire rope shock absorber, characterized in that: The steps include: S1: Open the side panel bolts (8) and slide the two side panels (5) to both sides; S2: two wire rope shock absorber test pieces (4) to be tested are respectively placed vertically on both sides of the middle connecting plate (6) and between the two side plates (5); S3: Align the specimen bolt (10) and the clamping protrusion (62) with the specimen connection hole (41) of the wire rope shock absorber specimen (4) respectively, and tighten the specimen bolt (10); S4: fixing the first connecting rod (1) on the top fixture of the universal testing machine, and fixing the second connecting rod (7) on the bottom fixture of the universal testing machine; S5: starting the universal testing machine and the sensor, the sensor collecting the displacement data of the wire rope shock absorber specimen (4) and sending it to the computer, and the universal testing machine sending the load data to the computer; S6: Process and analyze the displacement data and the load data by computer to obtain a load-displacement curve, and obtain the mechanical properties of the wire rope shock absorber specimen (4) according to the load-displacement curve; A mechanical property test device for a wire rope shock absorber comprises a transverse plate (2), two side plates (5) and a middle connecting plate (6), wherein: A first connecting rod (1) is fixedly connected to the top of the transverse plate (2); The transverse plate (2) is provided with a through transverse plate slide groove (21), a side plate bolt (8) is slidably provided inside the transverse plate slide groove (21), a side plate connecting hole (53) is provided on the top of the side plate (5), and the side plate bolt (8) passes through the transverse plate slide groove (21) and connects to the side plate connecting hole (53); The side surfaces of the two side plates (5) are each provided with a specimen bolt (10) for connecting the specimen connection holes (41) of the two wire rope shock absorber specimens (4) respectively; Both sides of the middle connecting plate (6) are provided with clamping protrusions (62) for clamping the specimen connecting holes (41) of two wire rope shock absorber specimens (4) respectively; A second connecting rod (7) is fixedly connected to the bottom of the middle connecting plate (6).

2. The working method according to claim 1, characterized in that: The two side plates (5) are provided with through-type prestressed rod holes (54), and the prestressed rod holes (54) on the two side plates (5) are arranged opposite to each other; Prestressed rods (3) are passed through the prestressed rod holes (54) opposite to each other on the two side plates (5), and prestressed rod bolts (9) are threadedly connected at both ends of the prestressed rod (3). The prestressed rod bolts (9) are located outside the two side plates (5).

3. The working method according to claim 1, characterized in that: The middle connecting plate (6) has middle connecting plate sliding grooves (61) formed on both sides thereof, and the clamping protrusions (62) are slidably arranged in the middle connecting plate sliding grooves (61).

4. The working method according to claim 3, characterized in that: The middle connecting plate sliding groove (61) is a "T"-shaped sliding groove, and the clamping protrusion (62) is a square-headed T-bolt.

5. The working method according to claim 3, characterized in that: The middle connecting plate sliding groove (61) is arranged vertically or horizontally.

6. The working method according to claim 1, characterized in that: A through-type side plate vertical sliding groove (52) is provided on the side surface of the side plate (5), and the test piece bolt (10) is slidably arranged in the side plate vertical sliding groove (52).

7. The working method according to claim 1, characterized in that: A through-type side plate horizontal sliding groove (51) is provided on the side surface of the side plate (5), and the test piece bolt (10) is slidably arranged in the side plate horizontal sliding groove (51).

8. The working method according to claim 1, characterized in that: The wire rope shock absorber test piece (4) is placed horizontally or vertically.

9. The working method according to claim 1, characterized in that: The universal testing machine adopts displacement control or load control.

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