CN214251441U

CN214251441U - Fatigue gauge for leaf spring

Info

Publication number: CN214251441U
Application number: CN202120100201.4U
Authority: CN
Inventors: 孙振铎; 张明洋; 李志远; 董鹏; 庞彬
Original assignee: Hebei University
Current assignee: Hebei University
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-09-21
Anticipated expiration: 2031-01-14

Abstract

The utility model provides a leaf spring's utensil is examined to fatigue. The structure of the device comprises a bottom plate, wherein a detection box and a shell which are opposite to each other are arranged on the bottom plate; a support plate is connected in the detection box in a sliding manner, and the center of the support plate is connected with an output shaft of a first motor arranged at the bottom of the detection box through a first rotating shaft; a limiting mechanism used for fixing the lower end of the steel plate spring to be detected is arranged on the supporting plate; sliding connection has the connecting plate in the casing, the connecting plate stretches out the outer one end of casing and is located the top of detection box, just the connecting plate stretches out the outer one end of casing and is equipped with the spring bayonet socket that is used for connecting the leaf spring upper end that awaits measuring, the connecting plate is located part in the casing can be followed the threaded rod that sets up in the casing and reciprocated. Through the utility model discloses, not only can realize the rotatory detection to leaf spring, can also realize the compression and tensile detection to leaf spring, reach the accurate detection of leaf spring.

Description

Fatigue gauge for leaf spring

Technical Field

The utility model belongs to the technical field of the spring detects technique and specifically relates to a leaf spring's utensil is examined to fatigue.

Background

A spring is a mechanical part that works by elasticity. The parts made of elastic materials deform under the action of external force and recover to the original shape after the external force is removed, and the parts are also used as 'springs', and are generally made of spring steel. The types of springs are complex and various, and mainly include spiral springs, volute springs, plate springs, special springs and the like according to the shapes.

In the detection process of the steel plate spring in the prior art, the steel plate spring can only be stretched normally, and the rotation and compression cannot be detected, so that the detection result of the spring is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an utensil is examined to leaf spring's fatigue to solve prior art and can't rotate the problem of the detection of compression to leaf spring.

The utility model discloses a realize like this: a fatigue gauge for a leaf spring comprises a bottom plate, wherein a detection box and a shell which are opposite to each other are arranged on the bottom plate; a support plate is connected in the detection box in a sliding manner, and the center of the support plate is connected with an output shaft of a first motor arranged at the bottom of the detection box through a first rotating shaft; a limiting mechanism used for fixing the lower end of the steel plate spring to be detected is arranged on the supporting plate; sliding connection has the connecting plate in the casing, the connecting plate stretches out the outer one end of casing and is located the top of detection box, just the connecting plate stretches out the outer one end of casing and is equipped with the spring bayonet socket that is used for connecting the leaf spring upper end that awaits measuring, the connecting plate is located part in the casing can be followed the threaded rod that sets up in the casing and reciprocated. Preferably, the first motor is Y-160L-6 in type.

Preferably, an annular sliding groove is formed in the inner side wall of the detection box, two sliding blocks matched with the annular sliding groove are arranged in the annular sliding groove, and the two sliding blocks are fixedly connected with the two ends of the supporting plate respectively.

Preferably, stop gear includes the mounting panel with the equal fixed connection of the upper end left and right sides of backup pad, at the equal horizontal second fixed plate of the equal fixedly connected with of the relative lateral wall of two mounting panels, two movable rods run through respectively in two second fixed plates from top to bottom, at the equal fixedly connected with limiting plate of lower extreme of two movable rods, have cup jointed the spring on two movable rods respectively, the both ends of spring respectively with second fixed plate and limiting plate fixed connection.

Preferably, be equipped with the adjustment mechanism that is used for carrying out the adjustment to the position about the connecting plate in the casing, adjustment mechanism is including setting up the second motor of lateral wall on the casing, the coaxial fixed connection second pivot of output of second motor, the second pivot runs through to in the casing, is connected through the gear train transmission between two threaded rods in second pivot and the casing, and two threaded rods pass through screw hole and connecting plate threaded connection. Preferably, the second motor is Y-160L-6 in type.

Preferably, the gear set comprises a first gear and two second gears, the first gear is coaxially and fixedly connected with the second rotating shaft, the two second gears are respectively located on two sides of the first gear, the two second gears are respectively meshed with the first gear, and meanwhile, the two second gears are respectively and coaxially and fixedly connected with the two threaded rods.

Preferably, the below of bottom plate is equipped with running gear, running gear include with the equal fixed connection's in the lower extreme four corners bracing piece of bottom plate, at the first fixed plate of the lower extreme fixedly connected with of bracing piece, rotate at the lower extreme of first fixed plate and be connected with the dwang, rotate at the lower lateral wall of dwang through the axis of rotation and be connected with the gyro wheel.

Compared with the prior art, the beneficial effects of the utility model are that: the limiting mechanism in the detection box is matched with the supporting plate capable of rotating, so that the rotation detection of the steel plate spring to be detected is realized; and the compression and stretching detection of the leaf spring is realized by matching with an adjusting mechanism, so that the accurate detection of the leaf spring is realized.

Drawings

Fig. 1 is a perspective view of the fatigue testing fixture for the middle leaf spring of the utility model.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

Fig. 3 is the external structure schematic diagram of the fatigue testing fixture for the middle leaf spring.

In the figure: 1. a base plate; 2. a traveling mechanism; 3. a detection cartridge; 4. a support plate; 5. a first motor; 6. a first rotating shaft; 7. a limiting mechanism; 8. a housing; 9. a connecting plate; 10. an adjustment mechanism; 11. a support bar; 12. a first fixing plate; 13. rotating the rod; 14. a rotating shaft; 15. mounting a plate; 16. a second fixing plate; 17. a movable rod; 18. a limiting plate; 19. a spring; 20. a second motor; 21. a second rotating shaft; 22. a threaded rod; 23. a gear set; 24. a first gear; 25. a second gear.

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.

Referring to fig. 1-3, the utility model provides an utensil is examined to leaf spring's fatigue includes bottom plate 1, is equipped with running gear 2 at the lower extreme of bottom plate 1, and is concrete, and running gear 2 includes the bracing piece 11 with the equal fixed connection in lower extreme four corners of bottom plate 1, at the first fixed plate 12 of the lower extreme fixedly connected with of bracing piece 11, the lower extreme of first fixed plate 12 rotates and is connected with dwang 13, rotates through axis of rotation 14 in the lower lateral wall of dwang 13 and is connected with the gyro wheel. At the upper end left side fixedly connected with detection box 3 of bottom plate 1, sliding connection has backup pad 4 in detection box 3, is equipped with annular spout on detecting 3 inside walls of box, is equipped with two assorted sliders with it in the annular spout, two sliders respectively with backup pad 4's both ends fixed connection.

The utility model discloses in, at the first motor 5 of the bottom fixedly connected with of detection box 3, the first pivot 6 of the coaxial fixedly connected with of output of first motor 5,

first pivot

6 and 4 central fixed connection of backup pad. A limiting mechanism 7 is arranged on the upper side of the supporting plate 4. Combine fig. 2, stop gear 7 includes the mounting panel 15 with the equal fixed connection of the upper end left and right sides of backup pad 4, at the equal horizontal second fixed plate 16 of the equal fixedly connected with of the relative lateral wall of two mounting panels 15, two movable rods 17 from top to bottom run through respectively in two second fixed plates 16, the equal fixedly connected with limiting plate 18 of two movable rods 17 lower extreme, spring 19 has been cup jointed on movable rod 17, spring 19's both ends respectively with second fixed plate 16 and limiting plate 18 fixed connection.

A shell 8 is fixedly connected to the right side of the upper end of the bottom plate 1, a connecting plate 9 is connected to the inside of the shell 8 in a sliding mode, a spring bayonet is arranged at the end, located on the outer side of the shell 8, of the connecting plate 9, and the spring bayonet is located above the detection box 3. An adjusting mechanism 10 for adjusting the connecting plate 9 is arranged in the housing 8. The adjusting mechanism 10 includes a second motor 20 fixedly connected to the outer upper sidewall of the housing 8, the types of the first motor 5 and the second motor 20 are Y-160L-6, and the first motor 5 and the second motor 20 are electrically connected to the outside. The output end of the second motor 20 is coaxially and fixedly connected with a second rotating shaft 21, the second rotating shaft 21 penetrates into the shell 8, two threaded rods 22 are rotatably connected between the upper side wall and the lower side wall in the shell 8, and the second rotating shaft 21 is in transmission connection with the two threaded rods 22 through a gear set 23. The gear set 23 comprises a first gear 24 and two second gears 25, the first gear 24 is coaxially and fixedly connected with the second rotating shaft 21, the two second gears 25 are respectively positioned at two sides of the first gear 24, the two second gears 25 are respectively meshed with the first gear 24, and meanwhile, the two second gears 25 are also respectively coaxially and fixedly connected with the two threaded rods 22; the connecting plate 9 penetrates through the left side wall of the shell 8, two threaded holes are formed in the part, located in the shell 8, of the connecting plate 9, and the connecting plate 9 is in threaded connection with the two threaded rods 22 through the two threaded holes.

The utility model discloses during the use, at first put steel sheet spring into detection box 3 in, make steel sheet spring's upper end be connected with connecting plate 9 through the spring bayonet socket, stimulate two movable rods 17 after that, two movable rods 17 drive limiting plate 18 and remove, and the cooperation is in compression state's spring 19, makes steel sheet spring's lower extreme embedding stop gear 7's limiting plate 18 below, and then fixes steel sheet spring's lower extreme. Then, the second motor 20 is turned on, the second motor 20 drives the second rotating shaft 21 to rotate, the second rotating shaft 21 drives the first gear 24 to rotate, the first gear 24 drives the two second gears 25 to rotate, the two second gears 25 drive the two threaded rods 22 to rotate, and the two threaded rods 22 drive the connecting plate 9 to move upwards or downwards, so that the steel plate spring to be detected is stretched or compressed. The first motor 5 is turned on, and the first motor 5 drives the support plate 4 to rotate, so that rotation detection is realized.

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 fatigue gauge for a leaf spring is characterized by comprising a bottom plate, wherein a detection box and a shell which are opposite to each other are arranged on the bottom plate; a support plate is connected in the detection box in a sliding manner, and the center of the support plate is connected with an output shaft of a first motor arranged at the bottom of the detection box through a first rotating shaft; a limiting mechanism used for fixing the lower end of the steel plate spring to be detected is arranged on the supporting plate; sliding connection has the connecting plate in the casing, the connecting plate stretches out the outer one end of casing and is located the top of detection box, just the connecting plate stretches out the outer one end of casing and is equipped with the spring bayonet socket that is used for connecting the leaf spring upper end that awaits measuring, the connecting plate is located part in the casing can be followed the threaded rod that sets up in the casing and reciprocated.

2. The steel plate spring fatigue detector according to claim 1, wherein an annular sliding groove is formed on the inner side wall of the detection box, two matched sliding blocks are arranged in the annular sliding groove, and the two sliding blocks are respectively fixedly connected with two ends of the supporting plate.

3. The fatigue testing fixture for the leaf spring according to claim 1, wherein the limiting mechanism comprises mounting plates fixedly connected to the left and right sides of the upper end of the support plate, transverse second fixing plates are fixedly connected to the opposite side walls of the two mounting plates, two movable rods respectively penetrate through the two second fixing plates from top to bottom, limiting plates are fixedly connected to the lower ends of the two movable rods, springs are respectively sleeved on the two movable rods, and the two ends of each spring are respectively fixedly connected to the second fixing plates and the limiting plates.

4. The fatigue testing fixture for the leaf spring according to claim 1, wherein a second motor is fixedly connected to the upper side wall of the housing, an output end of the second motor is coaxially and fixedly connected with a second rotating shaft, the second rotating shaft penetrates into the housing, the second rotating shaft is in transmission connection with two threaded rods in the housing through a gear set, and the two threaded rods are in threaded connection with the connecting plate through threaded holes.

5. The leaf spring fatigue gauge according to claim 4, wherein the gear set comprises a first gear and two second gears, the first gear is coaxially and fixedly connected with the second rotating shaft, the two second gears are respectively located at two sides of the first gear, the two second gears are respectively meshed with the first gear, and meanwhile, the two second gears are respectively coaxially and fixedly connected with the two threaded rods.

6. The leaf spring fatigue gauge according to claim 4, wherein the first motor and the second motor are both Y-160L-6.

7. The leaf spring fatigue gauge according to claim 1, wherein a traveling mechanism is provided below the bottom plate, the traveling mechanism includes support rods fixedly connected to four corners of the lower end of the bottom plate, a first fixing plate is fixedly connected to the lower ends of the support rods, a rotating rod is rotatably connected to the lower end of the first fixing plate, and a roller is rotatably connected to the lower side wall of the rotating rod through the rotating shaft.