CN219161602U

CN219161602U - Spring fatigue testing machine

Info

Publication number: CN219161602U
Application number: CN202222551744.5U
Authority: CN
Inventors: 沈少平
Original assignee: Zhangjiagang Haojiu Machinery Co ltd
Current assignee: Zhangjiagang Haojiu Machinery Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-06-09
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a spring fatigue testing machine, which comprises a test bench, wherein the bottom end surface of the test bench is connected with a supporting box, the upper end surface of the test bench is connected with a fixed plate through a plurality of fixed rods, the top of the fixed plate and the inside of the supporting box are both rotatably provided with turntables, a driving assembly is connected between the turntables at the upper part and the lower part, two groups of movable plates are arranged between the fixed plate and the test bench, when the spring fatigue testing machine is used, a spring to be tested is arranged between a first positioning seat and a second positioning seat, when the length of the spring is different, the height of the second positioning seat is adjusted through an adjusting assembly, so that the spring fatigue testing machine is suitable for springs with different lengths, a plurality of positioning seats are arranged on the movable plates, a plurality of springs can be tested in batches, the test efficiency is improved, when the test is performed, the driving assembly drives the turntables at the upper part and the lower part to rotate reversely at the same time, and the sliding blocks slide along the inner walls of the movable frames, and the movable plates at the upper part and the lower part move relatively or apart, so that the spring fatigue test is performed.

Description

Spring fatigue testing machine

Technical Field

The utility model relates to the technical field of spring testing, in particular to a spring fatigue testing machine.

Background

Compression spring fatigue refers to the fact that metal often deforms, cracks are increased, crack gaps are increased, and then fatigue is caused. In practical application, the fatigue life of the spring has a great relationship with the magnitude, direction and time-dependent change rule of the load. Under the conditions of large load and large amplitude, the number of times of the breaking of the elastic element is reduced, the fatigue performance of the spring steel wire is measured by the fatigue limit in engineering, and the maximum load stress during breaking is not called the fatigue limit after 10 times of circulating actions.

At present, test equipment for performing spring fatigue test generally only can realize the test of one spring at a time, and when detecting a plurality of springs or springs with different original lengths in the same batch, multiple times of detection is required, so that the detection efficiency is lower.

Disclosure of Invention

The utility model aims to provide a spring fatigue testing machine for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a spring fatigue testing machine, includes the testboard, the bottom face fixedly connected with supporting box of testboard, the up end of testboard is through a plurality of dead levers fixedly connected with fixed plate, the carousel is all installed in the inside of top and supporting box of fixed plate rotation, is connected with drive assembly between the carousel of upper and lower side, be provided with two sets of movable plates between fixed plate and the testboard, the front side of carousel is provided with the movable frame, the inside sliding connection of movable frame has the slider, rotate between slider and the carousel and be connected with the drive shaft, fixedly connected with a plurality of slide bars on the movable frame, slide bar and corresponding movable plate fixedly connected with, the up end fixedly connected with first positioning seat of below movable plate, be connected with the regulating block through a plurality of regulating assembly on the top movable plate, the bottom face fixedly connected with second positioning seat of regulating block.

Preferably, the drive assembly includes the bull stick, the bull stick rotates to wear to establish on the fixed plate, and the bottom of bull stick is connected with the interior bottom lateral wall rotation of supporting box, the surface fixed cover of bull stick has driven sprocket, the interior bottom fixed mounting of supporting box has the motor, the output fixedly connected with driving sprocket of motor, be connected with the chain between driving sprocket and the driven sprocket, the left side of upper and lower carousel all is provided with the transfer line, the right-hand member fixedly connected with first conical gear of transfer line, pivot rear end fixedly connected with second conical gear on the carousel, second conical gear and first conical gear meshing, the left end fixedly connected with third conical gear of transfer line, the surface fixed cover of bull stick is equipped with fourth conical gear, fourth conical gear and the third conical gear meshing on the transfer line of below, the up end rotation of fixed plate is installed the steering rod, the top fixedly connected with fifth conical gear on fifth conical gear and the transfer line and the third conical gear meshing on the transfer line of top, the surface fixedly connected with driving gear of transfer line, driven gear and driven gear meshing.

Preferably, the adjusting component comprises a bolt rod, the bolt rod is threaded through the upper end face of the upper moving plate, the bottom end of the bolt rod is rotationally connected with the upper end face of the adjusting block, and the top end of the bolt rod is fixedly connected with a knob.

Preferably, the left side and the right side of the upper end surface of the adjusting block are fixedly connected with guide rods, the guide rods are arranged on the moving plate above in a sliding penetrating mode, and the top ends of the guide rods are fixedly connected with fixing blocks.

Preferably, the outer surface of the knob is provided with anti-skid patterns.

Preferably, the front and back sides of the left end face and the front and back sides of the right end face of the moving plate are fixedly connected with guide sleeves, and the guide sleeves are sleeved on the outer surfaces of the corresponding fixing rods in a sliding manner.

Compared with the prior art, the utility model has the beneficial effects that: the spring fatigue testing machine is convenient to use and simple in structure, the spring to be tested is arranged between the first positioning seat and the second positioning seat, when the lengths of the springs are different, the heights of the second positioning seat are adjusted through the adjusting component, so that the spring fatigue testing machine is suitable for testing springs with different lengths, a plurality of positioning seats are arranged on the moving plate, a plurality of springs can be tested in batches, the testing efficiency is improved, during testing, the driving component drives the turntable at the upper part and the lower part to rotate simultaneously and reversely, the sliding block slides along the inner wall of the moving frame at the moment, and the moving plate at the upper part and the lower part move relatively or separately at the same time, so that the spring is subjected to fatigue testing; the movable plate can be stably lifted through sliding connection of the guide sleeve and the fixed rod.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of a main body structure of a spring fatigue testing machine;

fig. 2 is a schematic front view of the main structure of a spring fatigue testing machine.

In the figure: the test bench comprises a 1-test bench, a 2-support box, a 3-movable frame, a 4-turntable, a 5-transmission rod, a 6-motor, a 7-chain, an 8-sliding rod, a 9-movable plate, a 10-first positioning seat, an 11-rotating rod, a 12-guide sleeve, a 13-fixed rod, a 14-direction adjusting rod, a 15-adjusting block, a 16-sliding block, a 17-fixed plate, an 18-knob, a 19-second positioning seat, a 20-guide rod and a 21-bolt rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-2, a spring fatigue testing machine comprises a test bench 1, a supporting box 2 is fixedly connected to the bottom end surface of the test bench 1, a fixing plate 17 is fixedly connected to the upper end surface of the test bench 1 through a plurality of fixing rods 13, a rotary table 4 is rotatably installed on the top of the fixing plate 17 and the inside of the supporting box 2, a driving assembly is connected between the rotary table 4 at the upper side and the lower side, two groups of moving plates 9 are arranged between the fixing plate 17 and the test bench 1, a moving frame 3 is arranged on the front side of the rotary table 4, a sliding block 16 is slidably connected to the inside of the moving frame 3, a driving shaft is rotatably connected between the sliding block 16 and the rotary table 4, a plurality of sliding rods 8 are fixedly connected to the moving frame 3, a first positioning seat 10 is fixedly connected to the upper end surface of the lower moving plate 9, an adjusting block 15 is connected to the upper moving plate 9 through a plurality of adjusting assemblies, and a second positioning seat 19 is fixedly connected to the bottom end surface of the adjusting block 15.

During the use, install the spring that will wait to test between first positioning seat 10 and second positioning seat 19, when spring length is different, adjust second positioning seat 19 height through adjusting part, and then adapt to the spring of different length and test, and be provided with a plurality of positioning seats on the movable plate 9, can test a plurality of springs in batches, be favorable to improving test efficiency, during the test, drive assembly drives carousel 4 of upper and lower side and just reverse rotation simultaneously, slider 16 will slide along the movable frame 3 inner wall this moment, the movable plate 9 of upper and lower side will simultaneously relative or separate the motion, and then carry out fatigue test to the spring.

The driving assembly comprises a rotating rod 11, the rotating rod 11 is rotatably arranged on a fixed plate 17 in a penetrating mode, the bottom end of the rotating rod 11 is rotatably connected with the inner bottom side wall of a supporting box 2, a driven sprocket is fixedly sleeved on the outer surface of the rotating rod 11, a motor 6 is fixedly arranged at the inner bottom end of the supporting box 2, a driving sprocket is fixedly connected with the output end of the motor 6, a chain 7 is connected between the driving sprocket and the driven sprocket, a driving rod 5 is arranged on the left side of an upper rotating disc 4 and the left side of a lower rotating disc 4, a first conical gear is fixedly connected with the right end of the driving rod 5, a second conical gear is fixedly connected with the rear end of a rotating shaft on the rotating disc 4, a third conical gear is meshed with the first conical gear, a fourth conical gear is fixedly sleeved on the outer surface of the rotating rod 11 and is meshed with the third conical gear on the lower driving rod 5, a steering rod 14 is rotatably arranged on the upper end face of the fixed plate 17, a fifth conical gear is fixedly connected with the top end of the fifth conical gear, a driven gear is fixedly meshed with the driving rod 11, and the driving rod is fixedly meshed with the top end of the driving rod 11.

When the driving assembly is used, the motor 6 drives the driving sprocket to rotate, the chain 7 is connected between the driving sprocket and the driven sprocket, the rotating rod 11 is driven to rotate, the second conical gear is meshed with the first conical gear, the fourth conical gear is meshed with the third conical gear on the lower transmission rod 5, the fifth conical gear is meshed with the third conical gear on the upper transmission rod 5, the driven gear is meshed with the driving gear, and the rotating disc 4 above and below simultaneously and reversely rotates, namely the moving plate 9 above and below synchronously moves away from or relatively moves.

The adjusting component comprises a bolt rod 21, the bolt rod 21 is threaded through the upper end face of the upper moving plate 9, the bottom end of the bolt rod 21 is rotationally connected with the upper end face of the adjusting block 15, and the top end of the bolt rod 21 is fixedly connected with a knob 18.

When the knob 18 is rotated, the bolt rod 21 is driven to be threaded on the upper moving plate 9, the bottom end of the bolt rod 21 is rotationally connected with the adjusting block 15, and then the adjusting block 15 moves up and down, so that the distance between the first positioning seat 10 and the second positioning seat 19 is adjusted.

The guide rods 20 are fixedly connected to the left and right sides of the upper end face of the adjusting block 15, the guide rods 20 are slidably arranged on the moving plate 9 above, and the top ends of the guide rods 20 are fixedly connected with fixing blocks.

The guide rod 20 is provided to stably lift and lower the adjusting block 15.

Wherein the outer surface of the knob 18 is provided with anti-slip patterns.

Example 2: referring to fig. 1, a spring fatigue testing machine is different from embodiment 1 in that guide sleeves 12 are fixedly connected to the front and rear sides of the left end face and the front and rear sides of the right end face of the moving plate 9, and the guide sleeves 12 are slidably sleeved on the outer surfaces of the corresponding fixing rods 13.

The movable plate 9 can be stably lifted and lowered by sliding connection of the guide sleeve 12 and the fixed rod 13.

The working principle of the utility model is as follows: when the spring to be tested is installed between the first positioning seat 10 and the second positioning seat 19, when the lengths of the springs are different, the heights of the second positioning seat 19 are adjusted through the adjusting component, so that the spring to be tested can be suitable for springs with different lengths, a plurality of positioning seats are arranged on the moving plate 9, a plurality of springs can be tested in batches, the testing efficiency is improved, during the testing, the driving component drives the turntable 4 at the upper part and the lower part to rotate synchronously and reversely, at the moment, the sliding block 16 slides along the inner wall of the moving frame 3, and the moving plates 9 at the upper part and the lower part move relatively or separately at the same time, so that the springs are subjected to fatigue testing; when the driving assembly is used, the motor 6 drives the driving sprocket to rotate, the chain 7 is connected between the driving sprocket and the driven sprocket, so that the rotating rod 11 is driven to rotate, the second conical gear is meshed with the first conical gear, the fourth conical gear is meshed with the third conical gear on the lower transmission rod 5, the fifth conical gear is meshed with the third conical gear on the upper transmission rod 5, the driven gear is meshed with the driving gear, and further, the simultaneous and reverse rotation of the rotating disc 4 at the upper part and the lower part is realized, namely the moving plate 9 at the upper part and the lower part can synchronously move away from or relatively move; when the knob 18 is rotated, the bolt rod 21 is driven to be threaded on the upper moving plate 9, the bottom end of the bolt rod 21 is rotationally connected with the adjusting block 15, and then the adjusting block 15 moves up and down, so that the distance between the first positioning seat 10 and the second positioning seat 19 is adjusted.

In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.

Claims

1. The utility model provides a spring fatigue testing machine, includes testboard (1), its characterized in that: the testing device is characterized in that a supporting box (2) is fixedly connected to the bottom end face of the testing table (1), a fixing plate (17) is fixedly connected to the upper end face of the testing table (1) through a plurality of fixing rods (13), a rotary table (4) is fixedly connected to the top of the fixing plate (17) and the inside of the supporting box (2) in a rotating mode, a driving assembly is connected between the rotary table (4) at the upper side and the lower side, two groups of moving plates (9) are arranged between the fixing plate (17) and the testing table (1), a moving frame (3) is arranged on the front side of the rotary table (4), a sliding block (16) is connected to the inside of the moving frame (3) in a sliding mode, a plurality of sliding rods (8) are fixedly connected to the moving frame (3), a first positioning seat (10) is fixedly connected to the upper end face of the lower moving plate (9), an adjusting block (15) is connected to the upper moving plate (9) through a plurality of adjusting assemblies, and a second positioning seat (19) is fixedly connected to the bottom end face of the adjusting block (15).

2. The spring fatigue testing machine according to claim 1, wherein: the driving assembly comprises a rotating rod (11), the rotating rod (11) is rotatably arranged on a fixed plate (17) in a penetrating mode, the bottom end of the rotating rod (11) is rotatably connected with the side wall of the inner bottom end of a supporting box (2), a driven sprocket is fixedly sleeved on the left end of the rotating rod (11), a motor (6) is fixedly arranged at the inner bottom end of the supporting box (2), the output end of the motor (6) is fixedly connected with a driving sprocket, a chain (7) is connected between the driving sprocket and the driven sprocket, a transmission rod (5) is arranged on the left side of an upper rotating plate and a lower rotating plate (4), a first conical gear is fixedly connected with the right end of the transmission rod (5), a second conical gear is fixedly connected with the rear end of a rotating shaft on the rotating plate (4), the second conical gear is meshed with the first conical gear, a third conical gear is fixedly connected with the left end of the transmission rod (5), a fourth conical gear is fixedly sleeved on the outer surface of the rotating rod (11), a third conical gear is meshed with the third conical gear on the lower transmission rod (5), a first conical gear (14) is fixedly connected with the top end of the transmission rod (14), the third conical gear is fixedly connected with the top end of the transmission rod (14), the driven gear is meshed with the driving gear.

3. The spring fatigue testing machine according to claim 2, wherein: the adjusting component comprises a bolt rod (21), the bolt rod (21) is threaded through the upper end face of the upper moving plate (9), the bottom end of the bolt rod (21) is rotationally connected with the upper end face of the adjusting block (15), and the top end of the bolt rod (21) is fixedly connected with a knob (18).

4. A spring fatigue testing machine according to claim 3, wherein: the left side and the right side of the upper end face of the adjusting block (15) are fixedly connected with guide rods (20), the guide rods (20) are arranged on the moving plate (9) above in a sliding penetrating mode, and the top ends of the guide rods (20) are fixedly connected with fixing blocks.

5. The spring fatigue testing machine according to claim 4, wherein: the outer surface of the knob (18) is provided with anti-skid patterns.

6. The spring fatigue testing machine according to claim 5, wherein: the front and back sides of the left end face and the front and back sides of the right end face of the moving plate (9) are fixedly connected with guide sleeves (12), and the guide sleeves (12) are sleeved on the outer surfaces of the corresponding fixing rods (13) in a sliding mode.