CN212904322U

CN212904322U - Suspension type spring equal-eccentricity fatigue testing machine

Info

Publication number: CN212904322U
Application number: CN202022029238.0U
Authority: CN
Inventors: 周勇; 臧晓燕; 顾云峰
Original assignee: Yangzhou Mingfeng Spring Co ltd
Current assignee: Yangzhou Mingfeng Spring Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-04-06
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a suspension spring equal eccentric fatigue testing machine, which comprises a support plate, wherein four corners on the surface of the support plate are connected with stand columns, the top surface of each stand column is connected with a cover plate, two sides of the top surface of the cover plate are connected with mounting sleeves, each mounting sleeve is provided with a mounting cavity, each mounting sleeve is connected with a first servo motor, the power output end of each servo motor is connected with a driving bevel gear, the driving bevel gear is in meshing connection with a driven bevel gear, the center of the driven bevel gear is provided with a thread groove, the thread groove is connected with a threaded rod, the threaded rod is connected with an upper pressing block, two sides of the upper pressing block are provided with guide holes, each stand column is arranged in each guide hole, each stand column is in sliding connection with a lower pressing plate, the bottom of the lower pressing plate is, the other side of the belt is connected with a driving wheel, two sides of the driving wheel are connected with supporting blocks, and the supporting blocks are connected with a second servo motor.

Description

Suspension type spring equal-eccentricity fatigue testing machine

Technical Field

The utility model belongs to the technical field of fatigue testing machine, concretely relates to eccentric fatigue testing machine of suspension spring peer.

Background

A spring is a mechanical part that works by elasticity. The elasticity of the device can be used for controlling the movement of the machine parts, relieving impact or vibration, storing energy, measuring the force and the like. The method is widely applied to machines and instruments. However, the spring has elastic fatigue, and in some precision instruments, the requirement on the spring is very high, the spring must be replaced before the spring has elastic fatigue to ensure the normal use of the instrument, and the elastic fatigue characteristic of the spring also becomes the main parameter for the use and selection of the spring, so the spring elastic fatigue testing device becomes a necessary device for spring manufacturers and application manufacturers, but the existing fatigue testing machine has the defects that the installation of the spring is not stable enough when the fatigue testing machine carries out the fatigue testing on the spring, the spring can be deflected when the spring can not be effectively fixed in the testing process, the spring can be popped out after being deflected, safety accidents can be caused, the existing spring fatigue testing machine can not carry out the fatigue detection on a plurality of springs with different specifications simultaneously, and when the springs with different lengths face, the height of the pressure plate needs to be manually adjusted, the operation is complicated, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

To the problem that the above-mentioned background art provided, the utility model aims at: aims to provide a suspension spring equal eccentric fatigue testing machine.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

a suspension type spring equal-eccentricity fatigue testing machine comprises a support plate, wherein through grooves are formed in two sides of the support plate, stand columns are connected to four corners of the surface of the support plate, a cover plate is connected to the top surfaces of the stand columns, mounting sleeves are connected to two sides of the top surface of the cover plate, mounting cavities are formed in the mounting sleeves, the mounting sleeves are connected with a first servo motor, a driving bevel gear is connected to the power output end of the servo motor, the driving bevel gear is mounted in the mounting cavities, the driving bevel gear is in meshing connection with a driven bevel gear, a thread groove is formed in the center of the driven bevel gear, the thread groove is connected with a threaded rod, the threaded rod is connected with an upper pressing block, a bearing is connected to the bottom of the threaded rod, a threaded hole is formed in the bottom, the bottom of the connecting block is connected with a mounting disc, the bottom of the mounting disc is connected with an upper positioning column, two sides of the upper pressing block are provided with guide holes, the upright post is arranged in the guide holes, the upright post is connected with a lower pressing plate in a sliding way, the surface of the lower pressing plate is connected with a lower positioning column corresponding to the upper positioning column, the bottom of the lower pressing plate is connected with a U-shaped pushing block, the U-shaped pushing block is hinged with a movable plate, the movable plate penetrates through the through groove and extends to the lower side of the support plate, the lower side of the movable plate is hinged with an eccentric cam, the eccentric cam is connected with a driven wheel, two sides of the driven wheel are connected with supporting plates, the driven wheel is connected with a belt, the other side of the belt is connected with a driving wheel, two sides, the bottom of the support column is connected with a base plate, and the support plate and the support block are both arranged on the base plate.

Further inject, the support plate surface is connected with the rail frame, the rail frame is woven for the steel wire and forms. Such structural design can protect the staff through the rail frame.

Further, the eccentric cams on the two sides of the driven wheel are alternately arranged. The driven wheel can be used alternately in the left and right peak-valley mode through the structural arrangement, and energy consumption is saved.

Further inject, the holding down plate both sides are equipped with the mounting hole, install the uide bushing in the mounting hole, uide bushing and stand sliding connection, the uide bushing is inside to be equipped with the lubricant groove with the stand contact surface. The sliding effect is better due to the structural design, and the situation of blocking cannot occur.

Further inject, the installation cover both sides are through welded fastening connection with the side ear, the side ear is equipped with the mounting hole, the mounting hole internal connection has locking screw. The structural design makes the installation more stable.

The utility model has the advantages of it is following:

1. the utility model discloses a set up eccentric cam, carry out alternate use through the eccentric cam of both sides, when left eccentric cam drives the fly leaf and moves upward and extrudes the test spring, the eccentric cam on right side drives the fly leaf and resets downwards, and when the eccentric cam on right side drives the fly leaf and moves upward and extrudes the test spring, left eccentric cam drives the fly leaf and resets downwards again, thereby reach alternate use and carry out fatigue test, and through the resilience force of test spring self when testing, make energy consumption lower at the during operation, and the fault rate is low;

2. the utility model is provided with the upper positioning column and the lower positioning column, and the upper and lower sides of the spring are sleeved in the upper positioning column and the lower positioning column when the spring is installed, so that the spring is prevented from popping up when a fatigue test is carried out;

3. the utility model discloses a set up first servo motor, through carrying out solitary control with two first servo motor to according to the spring of different length, press fixedly through promoting the briquetting, made things convenient for workman's operation, and can carry out fatigue test to 2 springs simultaneously, improved the efficiency that detects.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic structural diagram of a suspension spring equal-eccentricity fatigue testing machine according to an embodiment of the present invention;

fig. 2 is a schematic top view of a suspension spring equivalent eccentric fatigue testing machine according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cross-sectional structure A-A of the equivalent eccentric fatigue testing machine of the suspension spring of the embodiment of the present invention;

FIG. 4 is a schematic diagram of a B-B cross-sectional structure of a suspension spring equal-eccentricity fatigue testing machine according to an embodiment of the present invention;

the main element symbols are as follows:

the support plate comprises a support plate 1, a cover plate 101, a through groove 2, a stand column 3, a mounting sleeve 4, a mounting cavity 5, a first servo motor 6, a driving bevel gear 7, a driven bevel gear 8, a thread groove 9, a threaded rod 10, an upper pressing block 11, a bearing 12, a threaded column 13, a connecting block 14, a mounting plate 15, an upper positioning column 16, a lower pressing plate 17, a lower positioning column 18, a U-shaped pushing block 19, a movable plate 20, an eccentric cam 21, a driven wheel 22, a supporting plate 23, a belt 24, a driving wheel 25, a supporting block 26, a second servo motor 27, a supporting column 28, a backing plate 29, a guide sleeve 30, a side lug 31 and a mounting hole.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in FIGS. 1-4, the suspension spring equal eccentricity fatigue testing machine of the present invention comprises through grooves 2 disposed on both sides of a support plate 1, columns 3 connected to four corners of the surface of the support plate 1, a cover plate 101 connected to the top surface of the columns 3, a mounting sleeve 4 connected to both sides of the top surface of the cover plate 101, a mounting cavity 5 disposed in the mounting sleeve 4, a first servo motor 6 connected to the mounting sleeve 4, a driving bevel gear 7 connected to the power output end of the servo motor 6, the driving bevel gear 7 installed in the mounting cavity 5, a driven bevel gear 8 engaged with the driving bevel gear 7, a threaded groove 9 disposed in the center of the driven bevel gear 8, a threaded rod 10 connected to the threaded groove 9, an upper press block 11 connected to the threaded rod 10, a bearing 12 connected to the bottom of the threaded rod 10, the bearing 12 installed in the upper, the threaded column 13 is fixedly connected with a connecting block 14, the bottom of the connecting block 14 is connected with a mounting disc 15, the bottom of the mounting disc 15 is connected with an upper positioning column 16, two sides of an upper pressing block 11 are provided with guide holes, the upright column 3 is installed in the guide holes, the upright column 3 is connected with a lower pressing plate 17 in a sliding manner, the surface of the lower pressing plate 17 is connected with a lower positioning column 18 corresponding to the upper positioning column 16, the bottom of the lower pressing plate 17 is connected with a U-shaped pushing block 19, the U-shaped pushing block 19 is hinged with a movable plate 20, the movable plate 20 penetrates through the through groove 2 and extends to the lower side of the support plate 1, the lower side of the movable plate 20 is hinged with an eccentric cam 21, the eccentric cam 21 is connected with a driven wheel 22, two sides of the driven wheel 22 are connected with a supporting plate 23, the driven wheel 22 is, the support columns 28 are connected to four corners of the bottom of the support plate 1, the backing plate 29 is connected to the bottom of the support column 28, and the support plate 23 and the support block 26 are both mounted on the backing plate 29.

When the device is used, a tested spring is aligned with the lower positioning columns 18 and placed on the lower pressing plate 17, then the first servo motor 6 is controlled to drive the driving bevel gear 7 to rotate, the driving bevel gear 7 drives the driven bevel gear 8, the driven bevel gear 8 drives the threaded rod 10 to move, the threaded rod 10 drives the upper pressing block 11, the upper pressing block 11 drives the connecting block 14, the connecting block 14 drives the mounting plate 15, the mounting plate 15 drives the upper positioning columns 16, the upper positioning columns 16 are inserted into the spring and press the spring through the mounting plate 15, then the second servo motor 27 is controlled to drive the driving wheel 25 to rotate, the driving wheel 25 drives the belt 24, the belt 24 drives the driven wheel 22, the driven wheel 22 drives the eccentric cams 21 on two sides to rotate, the eccentric cams 21 on two sides are alternately arranged, so that when the spring rotates, the left eccentric cam 21 drives the left movable plate 20 to move upwards, the left movable plate 20 pushes the U-shaped pushing block 19, the U-shaped pushing block 19 pushes the lower pressing plate 17, the lower pressing plate 17 is extruded towards the spring, the right eccentric cam 21 drives the right movable plate 20 to move downwards, the right movable plate 20 drives the U-shaped pushing block 19, the U-shaped pushing block 19 drives the lower pressing plate 17 to reset, and the eccentric cams 21 on the two sides are used alternately.

Preferably, the surface of the carrier plate 1 is connected with a fence frame which is formed by weaving steel wires. Such structural design can protect the staff through the rail frame. In practice, other structural shapes of the carrier plate 1 can also be considered as the case may be.

It is preferable that the eccentric cams 21 are alternately provided on both sides of the driven wheel 22. The arrangement of the structure enables the driven wheel 22 to be used alternately in a left-right peak-valley mode, and energy consumption is saved. In fact, other configurations of the eccentric cam 21 may be considered as appropriate.

Preferably, mounting holes are formed in two sides of the lower pressing plate 17, a guide sleeve 30 is mounted in each mounting hole, the guide sleeve 30 is connected with the upright post 3 in a sliding mode, and a lubricating oil groove is formed in the contact surface of the inner portion of the guide sleeve 30 and the upright post 3. The sliding effect is better due to the structural design, and the situation of blocking cannot occur. In fact, other configurations of the guide sleeve 30 are also contemplated, as the case may be.

Preferably, the two sides of the mounting sleeve 4 are fixedly connected with side lugs 31 through welding, the side lugs 31 are provided with mounting holes 32, and locking screws are connected in the mounting holes 32. The structural design makes the installation more stable. In fact, other configurations of the mounting sleeve 4 can be considered as appropriate.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a suspension type spring is eccentric fatigue testing machine equally, includes support plate (1), its characterized in that: the novel bearing is characterized in that through grooves (2) are formed in two sides of the support plate (1), four corners of the surface of the support plate (1) are connected with stand columns (3), a cover plate (101) is connected to the top surface of each stand column (3), installation sleeves (4) are connected to two sides of the top surface of each cover plate (101), installation cavities (5) are arranged in the installation sleeves (4), each installation sleeve (4) is connected with a first servo motor (6), the power output end of each servo motor (6) is connected with a driving bevel gear (7), each driving bevel gear (7) is installed in each installation cavity (5), each driving bevel gear (7) is in meshing connection with a driven bevel gear (8), a thread groove (9) is formed in the center of each driven bevel gear (8), each thread groove (9) is connected with a threaded rod (10), each threaded rod (10) is connected with an upper, the bearing (12) is arranged in the upper pressing block (11), a threaded hole is formed in the bottom of the upper pressing block (11), a threaded column (13) is connected in the threaded hole, a connecting block (14) is fixedly connected with the threaded column (13), a mounting disc (15) is connected to the bottom of the connecting block (14), an upper positioning column (16) is connected to the bottom of the mounting disc (15), guide holes are formed in two sides of the upper pressing block (11), the upright column (3) is arranged in the guide holes, a lower pressing plate (17) is connected to the upright column (3) in a sliding manner, a lower positioning column (18) corresponding to the upper positioning column (16) is connected to the surface of the lower pressing plate (17), a U-shaped pushing block (19) is connected to the bottom of the lower pressing plate (17), a movable plate (20) is hinged to a movable plate (20), the movable plate (20) penetrates through the through, the utility model discloses a support plate, including fly leaf (20), eccentric cam (21), driving wheel (22), supporting shoe (26), supporting shoe (27), belt (24) are connected to driven wheel (22), the opposite side of belt (24) is connected with action wheel (25), action wheel (25) both sides are connected with supporting shoe (26), supporting shoe (26) are connected with second servo motor (27), the power take off end of second servo motor (27) is connected with action wheel (25), four corners in support plate (1) bottom are connected with support column (28), support column (28) bottom is connected with backing plate (29), all install on backing plate (29) backup pad (23) and supporting shoe (26).

2. The suspension spring equivalent eccentric fatigue testing machine according to claim 1, wherein: the surface of the carrier plate (1) is connected with a fence frame, and the fence frame is formed by weaving steel wires.

3. The suspension spring equivalent eccentric fatigue testing machine according to claim 2, wherein: the eccentric cams (21) on both sides of the driven wheel (22) are arranged alternately and equally.

4. A suspension spring equal eccentricity fatigue testing machine according to claim 3, wherein: the novel bearing is characterized in that mounting holes are formed in two sides of the lower pressing plate (17), guide sleeves (30) are mounted in the mounting holes, the guide sleeves (30) are connected with the stand columns (3) in a sliding mode, and lubricating oil grooves are formed in the contact surfaces of the interior of the guide sleeves (30) and the stand columns (3).

5. The suspension spring equivalent eccentric fatigue testing machine according to claim 4, wherein: the mounting sleeve (4) both sides are through welded fastening connection with side ear (31), side ear (31) are equipped with mounting hole (32), locking screw is connected in mounting hole (32).