CN221302734U - Spring fatigue resistance testing machine capable of simultaneously testing different lengths - Google Patents

Abstract

The application relates to the field of spring production, in particular to a spring fatigue resistance testing machine for simultaneously testing different lengths, which comprises a frame, an upper end plate and a lower end plate, wherein the upper end plate and the lower end plate are arranged in the frame; the upper end plate is provided with a plurality of and goes up the couple, and the lower end plate is provided with a plurality of and goes up the couple and set up with lower couple corresponds, goes up couple and lower couple respectively with the both ends hitching cooperation of spring, lower couple and lower end plate fixed connection are provided with connecting device between upper couple and the upper end plate, connecting device is used for adjusting the position between upper couple and the upper end plate to adjust the different distances between upper couple and the lower couple, make the test machine carry out fatigue resistance's detection simultaneously to the spring of different length, reached the effect that promotes the fatigue resistance detection efficiency of spring.

Description

Spring fatigue resistance testing machine capable of simultaneously testing different lengths

Technical Field

The application relates to the field of spring production, in particular to a spring fatigue resistance testing machine for simultaneously testing springs with different lengths.

Background

At present, a spring is a mechanical part which works by utilizing elasticity, and the part made of elastic materials deforms under the action of external force and returns to the original state after the external force is removed, and is generally made of spring steel. The spring is complicated and various in variety and is divided into a spiral spring, a scroll spring, a plate spring, a special-shaped spring and the like according to the shape, and the spring needs to be stretched and detected in the production process of the spring.

When the existing spring tensile test is carried out, a spring tensile testing machine is generally used, the spring is arranged in the tensile testing machine, and then the driving device is started to repeatedly stretch the spring, so that the fatigue resistance of the spring is tested.

The prior art solutions described above have the following drawbacks: the springs with different lengths cannot be detected at the same time, so that the fatigue resistance detection efficiency of the springs is low.

Disclosure of utility model

The application provides a spring fatigue resistance testing machine for simultaneously testing different lengths in order to improve the fatigue resistance detection efficiency of springs.

The technical aim of the application is realized by the following technical scheme:

The spring fatigue resistance testing machine comprises a frame, an upper end plate and a lower end plate, wherein the upper end plate and the lower end plate are arranged in the frame, a telescopic device is arranged between the lower end plate and the frame and used for driving the lower end plate to slide in the frame, and a spring is arranged between the upper end plate and the lower end plate;

The upper end plate is provided with a plurality of and goes up the couple, and the lower end plate is provided with a plurality of and goes up couple and lower couple and correspond the setting, go up couple and lower couple respectively with the both ends hitching cooperation of spring, lower couple and lower end plate fixed connection are provided with connecting device between upper couple and the upper end plate, connecting device is used for adjusting the position between upper couple and the upper end plate to adjust the different distances between upper couple and the lower couple.

By adopting the scheme, the hooks are arranged for rapidly installing the springs between the upper end plate and the lower end plate, and then the telescopic device is started to drive the lower end plate to slide in the frame, so that the lower end plate drives the springs to repeatedly stretch and recover through the lower hooks, and the fatigue resistance degree of the springs is detected; when springs with different lengths are required to be measured simultaneously, the positions of the upper hook and the upper end plate are adjusted through the connecting device, so that the distances between the upper hook and the lower hook are different, springs with different lengths can be hung on the hooks with different distances, the testing machine can detect fatigue resistance of the springs with different lengths simultaneously, and the purpose of improving the fatigue resistance detection efficiency of the springs is achieved.

Further, connecting device includes connecting block and connecting rod, connecting block and upper end plate fixed connection, and the one end and the last couple fixed connection of connecting rod, the other end and connecting block threaded connection.

Through adopting above-mentioned scheme, when adjusting the position of couple and upper end plate, rotate the length that the connecting rod rotation entered the connecting block of connecting rod adjustment to adjust the position of connecting rod and connecting block, because connecting block and upper end plate fixed connection, connecting rod and couple fixed connection, thereby adjust the position of couple and upper end plate.

Further, be provided with the scale on the connecting rod, scale and connecting rod rotate to be connected, have seted up the sliding tray on the connecting block, in the one end that the connecting rod was kept away from to the scale was inserted the sliding tray, scale and sliding connection of sliding tray.

Through adopting above-mentioned scheme, when rotating the connecting rod, utilize the spacing effect of sliding tray and graduated flask for the graduated flask rotates around the connecting rod, then the connecting rod drives the graduated flask and slides in the sliding tray, according to the size of graduated flask roll-off sliding tray, confirms the distance of going up couple and upper end plate regulation, shows the length of connecting rod relative connecting block roll-off through setting up the graduated flask, promotes the accuracy when going up the couple and adjusts.

Further, a rotating ring is arranged between the graduated scale and the connecting rod, a groove is formed in the connecting rod, the rotating ring is sleeved in the groove and is rotationally connected with the connecting rod, and the rotating ring is fixedly connected with the graduated scale.

Through adopting above-mentioned scheme, when the connecting rod rotates, the swivel becket is under the control of scale for the swivel becket rotates around the connecting rod in the recess, and when the connecting rod slides relative connecting block, through the spacing effect of recess to the swivel becket, makes the connecting rod drive the swivel becket and slides, thereby makes the connecting rod drive the scale and slides in the sliding tray.

Further, connecting device includes upper boom, lower boom and locking bolt, upper boom and upper end plate fixed connection, and the adjusting tank has been seted up to the one end that the lower boom was kept away from to the lower end plate, and the one end that the lower boom was kept away from to the upper boom is located the adjusting tank, and the lower boom slides in the adjusting tank, and locking bolt passes the lateral wall in adjusting tank and lower boom butt, locking bolt and the lateral wall threaded connection in adjusting tank.

Through adopting above-mentioned scheme, when adjusting the position of couple and upper end plate through connecting device, at first rotate locking bolt and keep away from the upper boom, then remove the couple again and drive down the pole and slide in the adjustment tank, when going up the couple and adjusting to suitable position, rotate locking bolt and lower pole butt, fix down the pole in the adjustment tank, connecting device simple structure, adjust conveniently, promote the convenience when adjusting couple and upper end plate position.

Further, an anti-slip assembly is arranged between the lower rod and the side wall of the adjusting groove, the anti-slip assembly comprises a first rack and a second rack, the first rack is fixedly connected with the side wall of the lower rod, the second rack is fixedly connected with the side wall of the adjusting groove, and the first rack is meshed with the second rack.

By adopting the scheme, after the locking bolt is abutted with the lower rod, the locking bolt pushes the lower rod to drive the first rack to be meshed with the second rack, and as the first rack is fixedly connected with the lower rod and the second rack is fixedly connected with the side wall of the adjusting groove, the lower rod is fixed in the adjusting groove through the meshed first rack and second rack; when the position of the lower rod in the adjusting groove is adjusted, the locking bolt is rotated to be far away from the lower rod, then the first rack and the second rack are separated by moving the lower rod, the lower rod is pushed to slide in the adjusting groove and adjusted to a proper position, and then the locking bolt is rotated to be abutted with the lower rod.

Further, a graduated scale is arranged on the lower rod.

Through adopting above-mentioned scheme, through setting up the scale, accuracy when promoting the couple and adjusting.

Further, a height adjusting device is arranged between the upper end plate and the frame, the height adjusting device comprises a screw rod and a handle, the upper end plate is in sliding connection with the frame, one end of the screw rod is in rotary connection with the upper end plate, the other end of the screw rod penetrates through the frame to be fixedly connected with the handle, and the screw rod is in threaded connection with the frame.

Through adopting above-mentioned scheme, when using height adjusting device, at first rotate the handle and drive the lead screw and rotate, because lead screw and frame threaded connection, the lead screw drives the upper end plate and slides in the frame.

In summary, the application has the following technical effects:

1. The hooks are arranged for quickly installing the springs between the upper end plate and the lower end plate, and then the telescopic device is started to drive the lower end plate to slide in the frame, so that the lower end plate drives the springs to repeatedly stretch and recover through the lower hooks, and the fatigue resistance degree of the springs is detected; when springs with different lengths are required to be measured simultaneously, the positions of the upper hook and the upper end plate are adjusted through the connecting device, so that the distances between the upper hook and the lower hook are different, springs with different lengths can be hung on the hooks with different distances, the testing machine can be used for detecting fatigue resistance of the springs with different lengths simultaneously, and the purpose of improving the fatigue resistance detection efficiency of the springs is achieved;

2. Through setting up connecting block and connecting rod, when adjusting the position of couple and upper end plate, rotate the length that the connecting rod rotation entered the connecting block of connecting rod adjustment to adjust the position of connecting rod and connecting block, because connecting block and upper end plate fixed connection, connecting rod and couple fixed connection, thereby adjust the position of couple and upper end plate;

3. Through having set up upper boom, lower beam and locking bolt, at first rotate locking bolt and keep away from the upper boom, then remove the couple again and drive the lower beam and slide in the adjustment tank, when the couple was adjusted to suitable position, rotate locking bolt and lower beam butt, fix the lower beam in the adjustment tank, connecting device simple structure, adjust conveniently, promote the convenience when adjusting couple and upper end plate position.

Drawings

FIG. 1 is a schematic diagram of a spring fatigue resistance tester for simultaneously testing different lengths according to the present application;

FIG. 2 is a schematic view of the structure of the housing after the housing is removed;

FIG. 3 is a schematic view of a connecting device according to a first embodiment of the present application;

FIG. 4 is a schematic view showing the structure of the threaded connection of the connecting rod and the connecting block;

FIG. 5 is a schematic structural view of a connecting device according to a second embodiment of the present application;

Fig. 6 is a schematic view showing the structure of the antiskid unit.

In the figure, 1, a rack; 2. an upper end plate; 3. a lower end plate; 4. a spring; 5. an upper hook; 6. a lower hook; 7. a connecting device; 71. a connecting block; 711. a sliding groove; 72. a connecting rod; 721. a rotating ring; 73. a pole is arranged; 731. an adjustment tank; 74. a lower rod; 75. a locking bolt; 8. a graduated scale; 9. an anti-slip assembly; 91. a first rack; 92. a second rack; 10. a height adjusting device; 101. a screw rod; 102. a handle.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 and 2, the spring fatigue resistance testing machine for simultaneously testing different lengths provided by the embodiment comprises a frame 1, an upper end plate 2 and a lower end plate 3, wherein the upper end plate 2 and the lower end plate 3 are arranged in the frame 1, a telescopic device is arranged between the lower end plate 3 and the frame 1 and is used for driving the lower end plate 3 to slide in the frame 1, in the embodiment, a hydraulic cylinder is preferentially used for the telescopic device, one end of the hydraulic cylinder is fixedly connected with the frame 1, and the other end of the hydraulic cylinder is fixedly connected with the lower end plate 3; the spring 4 sets up between last end plate 2 and lower end plate 3, go up end plate 2 and be provided with couple 5 on a plurality of, lower end plate 3 is provided with couple 6 under a plurality of, go up couple 5 and couple 6 correspond the setting down, go up couple 5 and couple 6 down and couple the cooperation with the both ends of spring 4 respectively, in this embodiment, go up couple 5 and couple 6 down and all be provided with five, all set up couple 6 under every couple 5 under corresponding, couple 6 and lower end plate 3 fixed connection down, be provided with connecting device 7 between couple 5 and the last end plate 2, connecting device 7 is used for adjusting the position between couple 5 and the last end plate 2, thereby adjust the different distances between couple 5 and the couple 6 down.

Referring to fig. 3 and 4, the connection device 7 includes a connection block 71 and a connection rod 72, the connection block 71 is fixedly connected with the upper end plate 2, one end of the connection rod 72 is fixedly connected with the upper hook 5, and the other end is in threaded connection with the connection block 71; the connecting rod 72 is provided with a graduated scale 8, a rotating ring 721 is arranged between the graduated scale 8 and the connecting rod 72, the connecting rod 72 is provided with a groove, the rotating ring 721 is sleeved in the groove, the rotating ring 721 is rotationally connected with the connecting rod 72, and the rotating ring 721 is fixedly connected with the graduated scale 8; the connecting block 71 is provided with a sliding groove 711, one end of the graduated scale 8 far away from the connecting rod 72 is inserted into the sliding groove 711, and the graduated scale 8 is in sliding connection with the sliding groove 711.

Referring to fig. 1 and 2, a height adjusting device 10 is further arranged between the upper end plate 2 and the frame 1, the height adjusting device 10 comprises a screw rod 101 and a handle 102, the upper end plate 2 is slidably connected with the frame 1, the screw rod 101 is vertically arranged in the frame 1, the bottom end of the screw rod 101 is rotationally connected with the upper end plate 2, the top end of the screw rod 101 penetrates through the frame 1 to be fixedly connected with the handle 102, and the screw rod 101 is in threaded connection with the frame 1.

The implementation principle of the spring fatigue resistance testing machine for simultaneously testing different lengths in the embodiment of the application is as follows: when the testing machine is used, the handle 102 is adjusted according to the length of the longest spring 4 to drive the screw rod 101 to rotate, the distance between the upper end plate 2 and the lower end plate 3 is adjusted, then the positions of the upper hook 5 and the upper end plate 2 are adjusted according to the length of the shorter spring 4, which is longer than the length of the shorter spring 4, the rotating connecting rod 72 rotates in the connecting block 71, the rotating ring 721 rotates in the groove, the connecting rod 72 drives the rotating ring 721 to move through the groove, the rotating ring 721 drives the graduated scale 8 to slide in the sliding groove 711, so that the positions of the upper hook 5 and the upper end plate 2 are accurately adjusted, the upper hooks 5 of other groups are sequentially adjusted, the springs 4 with different lengths are hung in the corresponding upper hook 5 and lower hook 6, and then the telescopic device is started to drive the lower end plate 3 to slide in the frame 1, so that fatigue resistance detection of the springs 4 with different lengths can be simultaneously carried out, and the purpose of improving the fatigue resistance detection efficiency of the springs 4 is achieved.

Example two

Referring to fig. 5 and 6, the second embodiment of the present application is different from the first embodiment in that: the connecting device 7 comprises an upper rod 73, a lower rod 74 and a locking bolt 75, wherein the upper rod 73 is fixedly connected with the upper end plate 2, the lower rod 74 is fixedly connected with the upper hook 5, an adjusting groove 731 is formed in one end, far away from the lower end plate 3, of the upper rod 73, one end, far away from the upper hook 5, of the lower rod 74 is positioned in the adjusting groove 731, the lower rod 74 slides in the adjusting groove 731, the locking bolt 75 penetrates through the side wall of the adjusting groove 731 to be abutted against the lower rod 74, and the locking bolt 75 is in threaded connection with the side wall of the adjusting groove 731; be provided with anti-skidding subassembly 9 between the lateral wall of lower pole 74 and adjustment tank 731, anti-disengaging subassembly includes first rack 91 and second rack 92, first rack 91 and the lateral wall fixed connection of lower pole 74, second rack 92 and the lateral wall fixed connection of adjustment tank 731, first rack 91 and second rack 92 meshing are provided with scale 8 on the lower pole 74, in this embodiment, first rack 91 inlays and establishes in one side that lower pole 74 kept away from locking bolt 75, second rack 92 inlays and establishes in the lateral wall of adjustment tank 731, second rack 92 and locking bolt 75 symmetry set up, scale 8 inlays and establishes at the circumference lateral wall of lower pole 74.

When the connecting device 7 of this embodiment is used, the locking bolt 75 is turned away from the upper rod 73, the movable lower rod 74 enables the first rack 91 and the second rack 92 to be separated, then the upper hook 5 is moved to drive the lower rod 74 to slide in the adjusting groove 731, the position of the upper hook 5 is accurately adjusted according to the graduated scale 8 on the upper rod 73, when the upper hook 5 is adjusted to a proper position, the locking bolt 75 is abutted with the lower rod 74, the locking bolt 75 pushes the lower rod 74 to drive the first rack 91 and the second rack 92 to be meshed, and the lower rod 74 is fixed in the adjusting groove 731 through the meshed first rack 91 and second rack 92, so that the adjustment of the upper hook 5 is completed.

The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims (8)

1. The utility model provides a spring fatigue resistance testing machine of different length of simultaneous test which characterized in that: the testing machine comprises a frame (1), an upper end plate (2) and a lower end plate (3), wherein the upper end plate (2) and the lower end plate (3) are arranged in the frame (1), a telescopic device is arranged between the lower end plate (3) and the frame (1), the telescopic device is used for driving the lower end plate (3) to slide in the frame (1), and a spring (4) is arranged between the upper end plate (2) and the lower end plate (3);

The upper end plate (2) is provided with couple (5) on a plurality of, lower end plate (3) is provided with couple (6) under a plurality of, go up couple (5) and couple (6) correspond the setting down, go up couple (5) and couple (6) down and the both ends of spring (4) respectively articulate the cooperation, couple (6) and end plate (3) fixed connection down, be provided with connecting device (7) between couple (5) and upper end plate (2), connecting device (7) are used for adjusting the position between couple (5) and the upper end plate (2) down to adjust the different distance between couple (5) and the couple (6) down.

2. The machine of claim 1, wherein the machine is configured to simultaneously test springs of different lengths for fatigue resistance, and wherein: the connecting device (7) comprises a connecting block (71) and a connecting rod (72), wherein the connecting block (71) is fixedly connected with the upper end plate (2), one end of the connecting rod (72) is fixedly connected with the upper hook (5), and the other end of the connecting rod is in threaded connection with the connecting block (71).

3. The machine of claim 2, wherein the machine is configured to simultaneously test springs of different lengths for fatigue resistance, and wherein: be provided with scale (8) on connecting rod (72), scale (8) are connected with connecting rod (72) rotation, have seted up sliding tray (711) on connecting block (71), in the one end that connecting rod (72) were kept away from to scale (8) inserts sliding tray (711), scale (8) and sliding tray (711) sliding connection.

4. A machine for simultaneously testing spring fatigue resistance of different lengths according to claim 3, wherein: a rotary ring (721) is arranged between the graduated scale (8) and the connecting rod (72), a groove is formed in the connecting rod (72), the rotary ring (721) is sleeved in the groove, the rotary ring (721) is rotationally connected with the connecting rod (72), and the rotary ring (721) is fixedly connected with the graduated scale (8).

5. The machine of claim 1, wherein the machine is configured to simultaneously test springs of different lengths for fatigue resistance, and wherein: connecting device (7) are including upper rod (73), lower rod (74) and locking bolt (75), upper rod (73) and upper end plate (2) fixed connection, lower rod (74) and last couple (5) fixed connection, adjustment tank (731) has been seted up to the one end that lower end plate (3) was kept away from to upper rod (73), the one end that upper couple (5) was kept away from to lower rod (74) is located adjustment tank (731), lower rod (74) slide in adjustment tank (731), locking bolt (75) pass the lateral wall and lower rod (74) butt of adjustment tank (731), locking bolt (75) and the lateral wall threaded connection of adjustment tank (731).

6. The machine for simultaneously testing different lengths of springs for fatigue resistance according to claim 5, wherein: an anti-slip assembly (9) is arranged between the lower rod (74) and the side wall of the adjusting groove (731), the anti-slip assembly comprises a first rack (91) and a second rack (92), the first rack (91) is fixedly connected with the side wall of the lower rod (74), the second rack (92) is fixedly connected with the side wall of the adjusting groove (731), and the first rack (91) and the second rack (92)

The racks (92) are engaged.

7. The machine for simultaneously testing different lengths of springs for fatigue resistance according to claim 5, wherein: the lower rod (74) is provided with a graduated scale (8).

8. The machine of claim 1, wherein the machine is configured to simultaneously test springs of different lengths for fatigue resistance, and wherein: a height adjusting device (10) is arranged between the upper end plate (2) and the frame (1), the height adjusting device (10) comprises a screw rod (101) and a handle (102), one end of the screw rod (101) is rotationally connected with the upper end plate (2), the other end of the screw rod penetrates through the frame (1) to be fixedly connected with the handle (102), and the screw rod (101) is in threaded connection with the frame (1).