CN217084167U

CN217084167U - Suspension type spring equal-eccentricity fatigue testing machine

Info

Publication number: CN217084167U
Application number: CN202220822784.6U
Authority: CN
Inventors: 张启富
Original assignee: Dongguan Xinyilong Spring Co ltd
Current assignee: Dongguan Xinyilong Spring Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-29
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a suspension spring equal eccentric fatigue testing machine, which comprises a cover plate and a base, wherein the lower end of the cover plate is connected with an upper support, the upper support is sleeved with an upper pressure plate, the upper side of the upper pressure plate is provided with a first fixed plate, a hydraulic cylinder is arranged in the first fixed plate, one end of the hydraulic cylinder is connected with a conical pressing block, the periphery of the conical pressing block is provided with a limit strip, the lower side of the upper pressure plate is provided with a second chute, and a limit rod is arranged in the second chute; the limiting device is characterized in that an arc pressing block is arranged below the upper pressing plate, a limiting block is installed at the upper end of the arc pressing block, a through hole is formed in the limiting block, a spring is arranged on one side of the through hole, a first sliding groove is formed in the inner wall of the arc pressing block and connected with a limiting strip in a sliding and clamping mode, limiting holes are formed in two sides of the upper pressing plate, and limiting bolts are arranged in the limiting holes. The utility model discloses interior through toper support piece and the cooperation of arc support piece, can outwards expand arc support piece to reach the fixed effect of spring to different specifications.

Description

Suspension type spring equal-eccentricity fatigue testing machine

Technical Field

The utility model relates to a fatigue testing machine technical field specifically is a suspension type spring is eccentric fatigue testing machine equally.

Background

The spring is a mechanical part which works by utilizing elasticity, can control the movement of a machine part, relieve impact or vibration, store energy, measure the magnitude of force and the like by utilizing the elasticity of the spring, is widely used in machines and instruments, but the spring has elastic fatigue, the requirement on the spring is very high in some precise instruments, the spring needs to be replaced before the spring has the elastic fatigue so as to ensure the normal use of the instrument, and the elastic fatigue characteristic of the spring also becomes a main parameter for selecting the use of the spring, so the spring elastic fatigue testing device becomes a necessary device for spring manufacturers and application manufacturers.

Chinese patent discloses a suspension spring is eccentric fatigue testing machine (grant No. CN 212904322U) equally, this patent technique, uses in turn through the eccentric cam of both sides for the during operation power consumption is lower, and the fault rate is low, and adjusts according to spring length, but, the different spring of specification, its diameter variation, if the spring both ends do not fix, the spring breaks away from testing arrangement easily. Accordingly, those skilled in the art have provided a suspension spring equal-eccentricity fatigue testing machine to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equal eccentric fatigue testing machine of suspension spring to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a suspension type spring equal-eccentricity fatigue testing machine comprises a cover plate and a base, wherein the lower end of the cover plate is connected with an upper support, an upper pressing plate is sleeved on the upper support, a first fixing plate is arranged on the upper side of the upper pressing plate, a hydraulic cylinder is arranged in the first fixing plate, one end of the hydraulic cylinder is connected with a conical pressing block, a limiting strip is arranged on the periphery of the conical pressing block, a second sliding groove is formed in the lower side of the upper pressing plate, and a limiting rod is arranged in the second sliding groove;

an arc-shaped abutting block is arranged below the upper pressing plate, a limiting block is installed at the upper end of the arc-shaped abutting block, a through hole is formed in the limiting block, a spring is arranged on one side of the through hole, a first sliding groove is formed in the inner wall of the arc-shaped abutting block and is in sliding clamping connection with a limiting strip, limiting holes are formed in two sides of the upper pressing plate, and limiting bolts are arranged in the limiting holes;

the base upper end is connected with the lower prop, has cup jointed the holding down plate on the lower prop, holding down plate downside connection fixed plate two, the connecting piece is installed to two bottom of fixed plate, rotates on the connecting piece and is connected with the linking arm.

Preferably: the automatic belt conveyor is characterized in that a fixed plate is fixedly mounted on the base, a driven shaft is sleeved on the fixed plate in a rotating mode, eccentric wheels are connected to the front end and the rear end of the driven shaft, a motor is arranged on one side of the fixed plate, one end of the motor is connected with a driving shaft, and a belt is sleeved on the driving shaft.

Preferably: the driving shaft is connected with the driven shaft through a belt, and the motor is fixedly installed on the base.

Preferably: the eccentric wheel is rotatably connected with the connecting piece through a connecting arm, and the eccentric wheel is rotatably sleeved with the connecting arm.

Preferably: the limiting bolt penetrates through the limiting hole and is in limiting clamping connection with the limiting groove.

Preferably: the arc-shaped pressing block is connected with the second sliding chute in a sliding and clamping mode through a limiting block, the limiting block is sleeved with a limiting rod in a sliding mode, and one end of the spring is in pressing contact with the inner wall of the second sliding chute.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses interior through toper support piece and the cooperation of arc support piece, can outwards expand arc support piece to reach the fixed effect of spring to different specifications.

Drawings

Fig. 1 is a schematic perspective view of a suspension spring equal-eccentricity fatigue testing machine according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a base in a suspension spring equal-eccentricity fatigue testing machine according to an embodiment of the present application.

Fig. 3 is an exploded structural schematic view of a suspension spring equal-eccentricity fatigue testing machine provided in an embodiment of the present application.

Fig. 4 is an enlarged view of the structure of fig. 3A in the suspension spring equal-eccentricity fatigue testing machine provided in the embodiment of the present application.

Fig. 5 is an enlarged structural view of fig. 3B in the suspension spring equal-eccentricity fatigue testing machine provided in the embodiment of the present application.

Fig. 6 is an enlarged view of the structure of fig. 3C in the suspension spring equal-eccentricity fatigue testing machine provided in the embodiment of the present application.

In the figure: 1. a cover plate; 2. a base; 3. a lower pillar; 4. an upper pillar; 5. a limiting groove; 6. an upper pressure plate; 7. a hydraulic cylinder; 8. a first fixing plate; 9. a limiting hole; 10. a limit bolt;

11. a tapered pressure block; 12. a limiting strip; 13. an arc-shaped pressing block; 14. a first sliding chute; 15. a limiting block; 151. a through hole; 16. a spring; 17. a lower pressing plate; 18. a second fixing plate; 19. a connecting member;

20. a connecting arm; 21. a motor; 22. a drive shaft; 23. a belt; 24. a fixing plate; 25. a driven shaft; 26. an eccentric wheel; 27. a second chute; 28. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, in an embodiment of the present invention, a suspension spring equal eccentricity fatigue testing machine includes a cover plate 1 and a base 2, and is characterized in that a lower end of the cover plate 1 is connected with an upper pillar 4, the upper pillar 4 is sleeved with an upper pressing plate 6, a first fixing plate 8 is installed on the upper side of the upper pressing plate 6, a hydraulic cylinder 7 is installed in the first fixing plate 8, one end of the hydraulic cylinder 7 is connected with a conical pressing block 11, a limiting strip 12 is arranged on the periphery of the conical pressing block 11, a second chute 27 is arranged on the lower side of the upper pressing plate 6, and a limiting rod 28 is arranged in the second chute 27;

an arc-shaped abutting block 13 is arranged below the upper pressing plate 6, the arc-shaped abutting block 13 is in sliding clamping connection with the second sliding groove 27 through a limiting block 15, the limiting block 15 is in sliding sleeve connection with a limiting rod 28, one end of the spring 16 is in abutting contact with the inner wall of the second sliding groove 27, the limiting block 15 is installed at the upper end of the arc-shaped abutting block 13, a through hole 151 is formed in the limiting block 15, the spring 16 is arranged on one side of the through hole 151, a first sliding groove 14 is formed in the inner wall of the arc-shaped abutting block 13, the first sliding groove 14 is in sliding clamping connection with the limiting strip 12, limiting holes 9 are formed in two sides of the upper pressing plate 6, limiting bolts 10 are arranged in the limiting holes 9, and the limiting bolts 10 penetrate through the limiting holes 9 to be in limiting clamping connection with the limiting grooves 5;

the upper end of the base 2 is connected with a lower support 3, the lower support 3 is sleeved with a lower pressing plate 17, the lower side of the lower pressing plate 17 is connected with a second fixing plate 18, a connecting piece 19 is mounted at the bottom end of the second fixing plate 18, the connecting piece 19 is rotatably connected with a connecting arm 20, the base 2 is fixedly provided with a fixing plate 24, the fixing plate 24 is rotatably sleeved with a driven shaft 25, the front end and the rear end of the driven shaft 25 are connected with eccentric wheels 26, one side of the fixing plate 24 is provided with a motor 21, one end of the motor 21 is connected with a driving shaft 22, the driving shaft 22 is sleeved with a belt 23, the driving shaft 22 is connected with the driven shaft 25 through the belt 23, the motor 21 is fixedly mounted with the base 2, the eccentric wheels 26 are rotatably connected with the connecting piece 19 through the connecting arm 20, and the eccentric wheels 26 are rotatably sleeved with the connecting arm 20;

through the design, two pairs of upper pressing plates 6 and lower pressing plates 17 are arranged in the device, the structure is symmetrical, a motor 21 runs to drive a driving shaft 22, the driving shaft 22 drives eccentric wheels 26 at two ends to rotate through a driven belt 25, and the bottom of the lower pressing plates 17 is connected with the eccentric wheels 26 through a connecting piece 19 and a connecting arm 20, so that the lower pressing plates 17 at two sides are repeatedly lifted through the eccentric wheels 16, and the test spring is repeatedly compressed;

the upper pressing plate 6 is clamped with the upper support column 4 through the limiting bolt 10, the clamping height can be manually adjusted, and therefore the testing device is conveniently suitable for testing springs with different lengths, in order to be suitable for testing springs with different diameter specifications, the upper pressing plate 6 and the lower pressing plate 17 are both provided with the hydraulic cylinder 7, one end of the hydraulic cylinder 7 is provided with the conical pressing block 11, the conical pressing block 11 is clamped with four arc pressing blocks 13 through the limiting strips 12, the arc pressing blocks 13 are combined into a cylindrical shape, the arc pressing blocks 13 are in sliding clamping connection with the second sliding chutes 27 on the bottom side of the upper pressing plate 6 through the limiting blocks 15, and when the conical pressing blocks 11 are pressed downwards, the arc pressing blocks 11 are expanded outwards, so that the testing springs are pressed from inside to outside and are fixed;

similarly, the lower pressing plate 17 is also provided with a conical pressing block 11 and an arc pressing block 13 for matching, and pressing and fixing the lower end of the test spring.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A suspension type spring equal-eccentricity fatigue testing machine comprises a cover plate (1) and a base (2), and is characterized in that the lower end of the cover plate (1) is connected with an upper support column (4), an upper pressing plate (6) is sleeved on the upper support column (4), a first fixing plate (8) is installed on the upper side of the upper pressing plate (6), a hydraulic cylinder (7) is installed in the first fixing plate (8), one end of the hydraulic cylinder (7) is connected with a conical pressing block (11), a limiting strip (12) is arranged on the periphery of the conical pressing block (11), a second sliding groove (27) is formed in the lower side of the upper pressing plate (6), and a limiting rod (28) is arranged in the second sliding groove (27);

an arc-shaped pressing block (13) is arranged below the upper pressing plate (6), a limiting block (15) is installed at the upper end of the arc-shaped pressing block (13), a through hole (151) is formed in the limiting block (15), a spring (16) is arranged on one side of the through hole (151), a first sliding groove (14) is formed in the inner wall of the arc-shaped pressing block (13), the first sliding groove (14) is in sliding clamping connection with a limiting strip (12), limiting holes (9) are formed in two sides of the upper pressing plate (6), and limiting bolts (10) are arranged in the limiting holes (9);

base (2) upper end is connected with down pillar (3), has cup jointed holding down plate (17) on lower pillar (3), fixed plate two (18) are connected to holding down plate (17) downside, and connecting piece (19) are installed to fixed plate two (18) bottom, rotate on connecting piece (19) and are connected with linking arm (20).

2. The equivalent eccentric fatigue testing machine of suspension spring of claim 1, characterized in that, fixed plate (24) is fixedly installed on base (2), driven shaft (25) is connected to fixed plate (24) in a rotating and sleeving manner, eccentric wheels (26) are connected to front and back ends of driven shaft (25), motor (21) is arranged on one side of fixed plate (24), one end of motor (21) is connected with driving shaft (22), and belt (23) is sleeved on driving shaft (22).

3. A suspension spring equivalent eccentric fatigue testing machine according to claim 2, characterized in that the driving shaft (22) is connected with the driven shaft (25) through a belt (23), and the motor (21) is fixedly installed with the base (2).

4. A suspension spring equivalent eccentric fatigue testing machine according to claim 2, wherein the eccentric wheel (26) is rotatably connected with the connecting piece (19) through the connecting arm (20), and the eccentric wheel (26) is rotatably sleeved with the connecting arm (20).

5. A suspension spring equivalent eccentric fatigue testing machine according to claim 1, wherein the limit bolt (10) is passed through the limit hole (9) and is in limit clamping connection with the limit groove (5).

6. The equivalent eccentric fatigue testing machine of a suspension spring according to claim 1, characterized in that the arc-shaped pressing block (13) is slidably clamped with the second sliding groove (27) through a limiting block (15), the limiting block (15) is slidably sleeved with a limiting rod (28), and one end of the spring (16) is in pressing contact with the inner wall of the second sliding groove (27).