Three-axis fatigue test device for wire rope vibration isolators

Abstract

The object of the present invention is to provide a three-way fatigue test device for a wire rope isolator, which has a simple structure and is easy to maintain. It can safely and efficiently perform fatigue tests on rubber wire rope composite isolators to meet the needs of manufacturers and customers. It is characterized in that: the device includes a first connecting base plate, a first support rod, a second support rod, a second connecting base plate, a fourth support rod, a third support rod, a beam, and an electric vibration testing machine. A fixing plate is fixedly connected between the two beams, a rectangular opening is provided in the middle of the fixing plate, a connecting plate is fixedly connected to an inner side of the rectangular opening, and the connecting plate is connected to the fixing plate through a fixing block. An adapter frame is provided at the upper end of the electric vibration testing machine, and the vertical plate of the adapter frame passes through the rectangular opening and is located on the other inner side of the rectangular opening. The connecting plate and the vertical plate of the adapter frame are both connected to the rubber wire rope composite vibration isolator.

Description

Technical Field

[0001] The invention belongs to the technical field related to wire rope vibration isolator testing equipment, and particularly relates to a three-way fatigue testing device for a wire rope vibration isolator. Background Art

[0002] Fatigue testing is a component of environmental vibration testing. It verifies that products and equipment can operate reliably within a given service life. The fatigue test value, test duration, or test frequency can be adjusted according to the fatigue equivalence principle: increasing the test value can reduce the test duration. The product can be tested in an inoperative state. Fatigue testing primarily reveals cumulative damage failures.

[0003] However, the existing rubber-steel wire rope composite vibration isolators lack corresponding fatigue testing equipment, which cannot meet the needs of manufacturers for fatigue testing, nor can they meet the needs of customers for confirming product reliability. Summary of the Invention

[0004] The purpose of the present invention is to provide a three-way fatigue test device for wire rope vibration isolators to solve the problems raised in the above background technology. It has a simple structure and is easy to maintain. It can safely and efficiently perform fatigue tests on rubber wire rope composite vibration isolators to meet the needs of manufacturers and customers.

[0005] To achieve the above objectives, the present invention provides the following technical solutions.

[0006] A three-way fatigue test device for a wire rope vibration isolator, characterized in that: the device includes a first connecting base plate, a first support rod is vertically fixed to the upper sides of the front and rear ends of the first connecting base plate, and a second support rod is vertically fixed to the upper ends of the two first support rods; the device also includes a second connecting base plate, the second connecting base plate is arranged parallel to the first connecting base plate, a fourth support rod is vertically fixed to the upper sides of the front and rear ends of the second connecting base plate, a third support rod is vertically fixed to the upper ends of the two fourth support rods, and the upper ends of the second support rod and the third support rod are vertically fixed to each other. A crossbeam is horizontally fixedly connected between the two crossbeams, and an electric vibration tester is arranged below the two crossbeams and between the first connecting base plate and the second connecting base plate. A fixing plate is fixedly connected between the two crossbeams, and a rectangular opening is provided in the middle of the fixing plate. A connecting plate is fixedly connected to the inner side of the rectangular opening, and the connecting plate is connected to the fixing plate through a fixing block. An adapter frame is provided at the upper end of the electric vibration tester, and the vertical plate of the adapter frame passes through the rectangular opening and is located on the other inner side of the rectangular opening. The connecting plate and the vertical plate of the adapter frame are respectively connected to the two ends of the rubber wire rope composite vibration isolator.

[0007] Furthermore, heating devices are provided in the vertical plates of the connecting plate and the adapter frame, and the heating devices are used to heat the rubber-steel rope composite vibration isolator.

[0008] Furthermore, a connecting rod is connected between two of the first support rods, the second support rod, the third support rod, and the fourth support rod.

[0009] Furthermore, the upper end walls of the two second support rods are fixedly connected with first ribs, and the upper ends of the two first ribs are fixedly connected to the bottom of the beam. The upper end walls of the two third support rods are fixedly connected with second ribs, and the upper ends of the two second ribs are fixedly connected to the bottom of the beam.

[0010] Furthermore, the first support rod and the second support rod are connected by bolts, and the third support rod and the fourth support rod are connected by bolts.

[0011] Compared with the prior art, the present invention provides a three-way fatigue test device for wire rope vibration isolators, which has the following beneficial effects:

[0012] 1. The three-way fatigue test device for steel wire rope isolators described in the present invention solves the problem that enterprises lack testing equipment and are unable to conduct three-way fatigue tests on rubber-steel wire rope composite isolators. The device is connected to the rubber-steel wire rope composite isolator by providing a connecting plate and a vertical plate of an adapter frame to prevent the rubber-steel wire rope composite isolator from falling off during the test. The electric vibration testing machine drives the rubber-steel wire rope composite isolator to perform three-way fatigue tests in the up and down, left and right, and front and back directions through the adapter frame. At the same time, the heating device in the connecting plate and the vertical plate of the adapter frame heats the rubber-steel wire rope composite isolator to accelerate its fatigue, especially the aging of the rubber, thereby achieving safety and efficiency during the test, saving labor and reducing costs.

[0013] 2. The device described in the present invention has a simple, compact and reasonable structure, a simple manufacturing process, reliable threaded connection, and key parts are composed of mature and reliable welding technology, which is easy to operate and use.

[0014] 3. The device described in the present invention has good parts interchangeability, sufficient assembly and maintenance space, convenient maintenance, repair, and various construction operations, and saves testers' maintenance, clamping, and disassembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front schematic diagram of the device of the present invention;

[0016] Figure 2 It is a side schematic diagram of the device of the present invention;

[0017] Figure 3 It is a schematic top view of the fixing plate in the device of the present invention.

[0018] In the figure: 1. first connecting base plate; 2. first support rod; 3. second support rod; 4. first rib; 5. crossbeam; 6. adapter frame; 7. connecting plate; 8. fixing block; 9. fixing plate; 10. second rib; 11. third support rod; 12. fourth support rod; 13. second connecting base plate; 14. rubber-steel wire rope composite vibration isolator; 15. electric vibration testing machine; 16. connecting rod. DETAILED DESCRIPTION

[0019] The present invention provides a technical solution, according to Figure 1-3 As shown, a three-way fatigue test device for a wire rope vibration isolator, the device includes a first connecting base plate 1, a first support rod 2 is vertically fixed to the upper sides of the front and rear ends of the first connecting base plate 1, and a second support rod 3 is vertically fixed to the upper ends of the two first support rods 2. The device also includes a second connecting base plate 13, the second connecting base plate 13 is arranged parallel to the first connecting base plate 1, and a fourth support rod 12 is vertically fixed to the upper sides of the front and rear ends of the second connecting base plate 13, and a third support rod 11 is vertically fixed to the upper ends of the two fourth support rods 12. The upper ends of the second support rods 3 and the third support rods 11 are both vertically fixed. A horizontal fixed connection is provided with a crossbeam 5, and an electric vibration tester 15 is provided below the two crossbeams 5 and between the first connecting base plate 1 and the second connecting base plate 13. A fixing plate 9 is fixedly connected between the two crossbeams 5, and a rectangular opening is provided in the middle of the fixing plate 9. A connecting plate 7 is fixedly connected to the inner side of the rectangular opening, and the connecting plate 7 is connected to the fixing plate 9 through a fixing block 8. An adapter frame 6 is provided at the upper end of the electric vibration tester 15, and the vertical plate of the adapter frame 6 passes through the rectangular opening and is located on the other inner side of the rectangular opening. The connecting plate 7 and the vertical plate of the adapter frame 6 are respectively connected to the two ends of the rubber wire rope composite vibration isolator 14.

[0020] Furthermore, heating devices are provided in the vertical plates of the connecting plate 7 and the adapter frame 6, which are not shown in the accompanying drawings. The heating devices are used to heat the rubber-steel wire rope composite vibration isolator 14. High temperature can accelerate the fatigue degree of the rubber-steel wire rope composite vibration isolator 14, especially the aging of the rubber, and improve the test efficiency.

[0021] Furthermore, a connecting rod 16 is connected between each of the first support rod 2, the second support rod 3, the third support rod 11, and the fourth support rod 12, so that the first support rod 2, the second support rod 3, the third support rod 11, and the fourth support rod 12 are more stable.

[0022] Furthermore, the upper end walls of the two second support rods 3 are fixedly connected with the first ribs 4, and the upper ends of the two first ribs 4 are fixedly connected to the bottom of the beam 5. The upper end walls of the two third support rods 11 are fixedly connected with the second ribs 10, and the upper ends of the two second ribs 10 are fixedly connected to the bottom of the beam 5, so that the connection between the support rods and the beams is more secure.

[0023] Furthermore, the first support rod 2 and the second support rod 3 are connected by bolts, and the third support rod 11 and the fourth support rod 12 are connected by bolts, so that the device is more convenient to assemble and disassemble.

[0024] The working principle of this device is as follows: by setting a connecting plate 7 and a vertical plate of the adapter frame 6 to connect with the rubber-steel rope composite vibration isolator 14, the rubber-steel rope composite vibration isolator 14 is prevented from falling off during the test; the electric vibration testing machine 15 drives the rubber-steel rope composite vibration isolator 14 through the adapter frame 6 to perform three-dimensional fatigue testing in the up and down, left and right, and front and back directions; at the same time, the heating device in the connecting plate 7 and the vertical plate of the adapter frame 6 heats the rubber-steel rope composite vibration isolator, using high temperature to accelerate its fatigue, especially the aging of the rubber; thereby achieving safety and efficiency during the test, saving labor and reducing costs.

[0025] The device of the present invention has a simple, compact, and rational structure, a simple manufacturing process, reliable threaded connections, and key components constructed using mature and reliable welding techniques, making it easy to operate and use. The device of the present invention has good interchangeability of parts and ample assembly and maintenance space, facilitating maintenance, repair, and various construction operations, saving testers time on maintenance, clamping, and disassembly.

Claims

1. A three-way fatigue test device for a wire rope vibration isolator, the device comprising a first connecting base plate (1), first support rods (2) being vertically fixed to the upper sides of both front and rear ends of the first connecting base plate (1), and second support rods (3) being vertically fixed to the upper ends of both the first support rods (2), the device further comprising a second connecting base plate (13), the second connecting base plate (13) being arranged parallel to the first connecting base plate (1), fourth support rods (12) being vertically fixed to the upper sides of both front and rear ends of the second connecting base plate (13), third support rods (11) being vertically fixed to the upper ends of both the fourth support rods (12), cross beams (5) being horizontally fixedly connected between the upper ends of the second support rods (3) and the third support rods (11), the lower parts of the two cross beams (5) and the upper ends of the first connecting base plate. An electric vibration tester (15) is provided between the plate (1) and the second connecting base plate (13), a fixing plate (9) is fixedly connected between the two cross beams (5), a rectangular opening is provided in the middle of the fixing plate (9), a connecting plate (7) is fixedly connected to one inner side of the rectangular opening, the connecting plate (7) is connected to the fixing plate (9) through a fixing block (8), an adapter frame (6) is provided at the upper end of the electric vibration tester (15), a vertical plate of the adapter frame (6) passes through the rectangular opening and is located on the other inner side of the rectangular opening, the connecting plate (7) and the vertical plate of the adapter frame (6) are both connected to the rubber-steel-rope composite vibration isolator (14); a heating device is provided in the vertical plates of the connecting plate (7) and the adapter frame (6), and the heating device is used to heat the rubber-steel-rope composite vibration isolator (14); Connecting rods (16) are connected between the two first support rods (2), the second support rod (3), the third support rod (11), and the fourth support rod (12).

2. The three-way fatigue test device for wire rope vibration isolators according to claim 1, characterized in that: The upper end walls of the two second support rods (3) are fixedly connected to the first ribs (4), and the upper ends of the two first ribs (4) are fixedly connected to the bottom of the crossbeam (5). The upper end walls of the two third support rods (11) are fixedly connected to the second ribs (10), and the upper ends of the two second ribs (10) are fixedly connected to the bottom of the crossbeam (5).

3. The three-way fatigue test device for wire rope vibration isolators according to claim 1, characterized in that: The first support rod (2) and the second support rod (3) are both connected via bolts, and the third support rod (11) and the fourth support rod (12) are both connected via bolts.

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