CN219870265U

CN219870265U - Spring fatigue testing device

Info

Publication number: CN219870265U
Application number: CN202321164680.1U
Authority: CN
Inventors: 袁国平
Original assignee: Jiangsu Hengli Spring Co ltd
Current assignee: Jiangsu Hengli Spring Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-20
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a spring fatigue testing device, which relates to the technical field of spring testing devices and comprises a lower mounting seat, an upper mounting seat, a plurality of springs to be tested and a testing host, wherein a first pressing plate is fixedly arranged at the top of the lower mounting seat, a second pressing plate is connected with the outer wall of a sliding rod in a sliding manner, a testing telescopic cylinder is fixedly arranged at the axis of the upper mounting seat, and fixing assemblies are arranged on the first pressing plate and the second pressing plate; according to the technical scheme provided by the utility model, the fixing assembly is arranged, specifically, one end of any spring to be tested is sleeved on the inner sides of the two fixing sliding blocks, at the moment, the rotating screw is meshed with one end of the fixing sliding blocks, so that the two fixing sliding blocks relatively move to support the inner sides of one end of the spring to be tested, the spring to be tested is fixed, and therefore springs with different sizes can be fixed, and the spring fixing device is convenient to use.

Description

Spring fatigue testing device

Technical Field

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

Background

A spring is a mechanical part that works with elasticity. The spring bears load during operation, and the fatigue strength of the spring directly influences the function realization, the reliability and the service life of the whole component because the spring load force plays a role in movement and control. Therefore, it is necessary to perform fatigue test on the spring and ensure the spring quality.

The Chinese patent document CN212159012U discloses a spring fatigue testing device which comprises a supporting base plate, supporting foot plates, supporting sliding columns, an upper hanging plate, an upper testing pressing plate structure, a lower testing pressing plate structure, a testing telescopic cylinder, an extension rod, a control main cabinet, a protective cabinet door, a touch screen, a testing host and a spring main body, wherein the supporting foot plates are welded at four corners of the lower surface of the supporting base plate respectively; one end of the supporting sliding column is connected with the middle positions of the left side and the right side of the upper surface of the supporting base plate through bolts respectively, and the other end of the supporting sliding column is connected with the lower part of the upper hanging plate through bolts; the upper test pressing plate structure is connected with the support slide column; the lower test pressing plate structure is arranged at the middle position of the upper part of the support base plate; the test telescopic cylinder is connected with the middle position of the upper surface of the upper hanging plate through a bolt; the extension rod penetrates through the middle position of the upper hanging plate and is welded at the lower end of the test telescopic cylinder; the control main cabinet is connected to the right sides of the upper hanging plate and the supporting base plate through bolts; the hinge of the protective cabinet door is connected to the front part of the control main cabinet; the touch screen screw is connected to the middle position of the upper part of the protective cabinet door; the test host is connected to the lower side of the inner part of the control main cabinet through bolts; the spring main body is arranged between the upper test pressing plate structure and the lower test pressing plate structure;

however, when in actual use, the springs are fixed and restrained only by the upper and lower spring restraining columns and the upper and lower spring restraining bolts, the sizes of the restraining columns are relatively fixed, the springs with different thicknesses are inconvenient to fix, and when the springs with different sizes are required to be tested, the springs can be fixed only by replacing the restraining columns, so that the springs are inconvenient to use and therefore need to be improved.

Disclosure of Invention

The utility model aims to solve the technical problems that the prior art is insufficient and the spring fatigue testing device is provided to solve the problems that springs with different thicknesses are inconvenient to fix, and when springs with different sizes are required to be tested, the springs can be fixed only by replacing a constraint column, so that the spring fatigue testing device is inconvenient to use.

In view of the above, the utility model provides a spring fatigue testing device, which comprises a lower mounting seat, an upper mounting seat, a plurality of springs to be tested and a testing host, wherein a sliding rod is fixedly connected between the lower mounting seat and the upper mounting seat, a first pressing plate is fixedly arranged at the top of the lower mounting seat, a second pressing plate is slidably connected with the outer wall of the sliding rod, a testing telescopic cylinder is fixedly arranged at the axle center of the upper mounting seat, and fixing components are arranged on the first pressing plate and the second pressing plate;

the fixed subassembly includes a plurality of spouts, adjusting screw and a plurality of fixed slider, and a plurality of the spout is seted up respectively in first clamp plate and second clamp plate inboard, adjusting screw rotates respectively and connects inside first clamp plate and second clamp plate, fixed slider one end sliding connection is inboard at the spout.

Optionally, one end of the adjusting screw is located inside the chute, and one end of the adjusting screw penetrates through one end of the first pressing plate and one end of the second pressing plate respectively.

Optionally, the outer wall of one end of the adjusting screw is rotationally connected to the inner side of the fixed sliding block, and the outer wall of one end of the adjusting screw is in threaded connection with the fixed sliding block.

Optionally, the fixing assembly further comprises a plurality of fixing bolts, an elastic steel sleeve and a plurality of screw holes, the screw holes are formed in one side of the fixing sliding block, the elastic steel sleeve is sleeved on the outer side of the fixing sliding block, and one ends of the fixing bolts are fixedly arranged on the inner sides of the screw holes.

Optionally, the elastic steel sleeve is fixedly installed on the outer side of the fixed sliding block through the matching of the fixing bolt and the screw hole, and the fixing bolt is matched with the screw hole.

Optionally, the inside cover of spring to be measured one end is established in fixed slider one end outside, spring to be measured one end outside cover is established in elastic steel sleeve is inboard.

From the above technical solutions, the embodiment of the present utility model has the following advantages:

1. according to the spring fatigue testing device, the fixing assembly is arranged, specifically, one end of any spring to be tested is sleeved on the inner sides of the two fixing sliding blocks, at the moment, the rotating screw is meshed with one end of the fixing sliding blocks, so that the two fixing sliding blocks relatively move, the inner sides of one end of the spring to be tested are supported, the spring to be tested is fixed, and therefore springs with different sizes can be fixed, and the spring fatigue testing device is convenient to use.

2. According to the spring fatigue testing device, the fixing assembly is arranged, specifically, when the inner side of one end of the spring to be tested is fixed on the outer side of one end of the fixed sliding block, the deformable elastic steel sleeve is wrapped on the outer wall of one end of the spring to be tested, and then the elastic steel sleeve is fixed through the matching of the bolt and the screw hole, so that the elastic steel sleeve is sleeved on the outer side of the spring to be tested and matched with the inner side and the outer side of the fixed sliding block, the fixing firmness of the spring to be tested is improved, and the safety of a test is ensured.

3. The spring fatigue testing device provided by the utility model adopts the arrangement of a plurality of groups of fixing components, and can test a plurality of springs at the same time during testing, so that the device is convenient to use.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

Drawings

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an assembly of a fastening assembly according to the present utility model;

fig. 3 is an enlarged view of a portion of fig. 2 a in accordance with the present utility model.

Reference numerals illustrate: 1. a lower mounting seat; 2. an upper mounting seat; 3. a slide bar; 4. a first platen; 5. a second pressing plate; 601. a chute; 602. adjusting a screw; 603. a fixed slide block; 604. a fixing bolt; 605. an elastic steel sleeve; 606. a screw hole; 7. testing a telescopic cylinder; 8. testing a host; 9. and a spring to be tested.

Detailed Description

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

The following describes a spring fatigue testing device according to an embodiment of the present utility model in detail with reference to the accompanying drawings.

Example 1

In order to facilitate understanding, referring to fig. 1 to 3, an embodiment of a spring fatigue testing device provided by the utility model includes a lower mounting seat 1, an upper mounting seat 2, a plurality of springs 9 to be tested and a testing host 8, a sliding rod 3 is fixedly connected between the lower mounting seat 1 and the upper mounting seat 2, a first pressing plate 4 is fixedly mounted on the top of the lower mounting seat 1, a second pressing plate 5 is slidingly connected with the outer wall of the sliding rod 3, a testing telescopic cylinder 7 is fixedly mounted at the axis of the upper mounting seat 2, and fixing components are arranged on the first pressing plate 4 and the second pressing plate 5;

it should be noted that, the spring 9 to be tested may be any spring to be tested, the test host 8 is connected with a controller and a sensor required during testing, such as a pressure sensor, a counting sensor, which are all known parts, and are not described in detail, the test host 8 is used for controlling the test telescopic cylinder 7 to perform telescopic pressurization, and recording the number of times of telescopic operations and the applied pressure of the test telescopic cylinder 7, wherein the fixing assembly is provided with a plurality of groups for simultaneously testing a plurality of springs, so that the use is convenient.

The fixed subassembly includes a plurality of spouts 601, adjusting screw 602 and a plurality of fixed slider 603, a plurality of spouts 601 are offered respectively in first clamp plate 4 and second clamp plate 5 inboardly, adjusting screw 602 rotates respectively to be connected in first clamp plate 4 and second clamp plate 5 insidely, fixed slider 603 one end sliding connection is inboard at spout 601, adjusting screw 602 one end is located spout 601 inboardly, adjusting screw 602 one end runs through respectively in first clamp plate 4 and second clamp plate 5 one end, adjusting screw 602 one end outer wall rotation is connected in fixed slider 603 inboardly, and adjusting screw 602 one end outer wall adopts threaded connection with fixed slider 603.

It should be noted that, through the setting of spout 601, adjusting screw 602 and fixed slider 603, establish the one end cover of arbitrary spring 9 that awaits measuring at two fixed slider 603 inboards, at this moment, rotate adjusting screw 602 and fixed slider 603 one end and mesh for two fixed slider 603 relative motion support the inboard of spring 9 one end that awaits measuring, fix spring 9 that awaits measuring, thereby can fix the spring of equidimension not, facilitate the use.

Example 2

In some embodiments, as shown in fig. 1 and 3, the fixing assembly further includes a plurality of fixing bolts 604, an elastic steel sleeve 605 and a plurality of screw holes 606, the screw holes 606 are formed on one side of the fixing slider 603, the elastic steel sleeve 605 is sleeved outside the fixing slider 603, one end of the fixing bolt 604 is fixedly mounted inside the screw holes 606, the elastic steel sleeve 605 is matched with the screw holes 606 through the fixing bolts 604 and fixedly mounted outside the fixing slider 603, the fixing bolts 604 are matched with the screw holes 606, one end of the spring 9 to be tested is sleeved outside one end of the fixing slider 603, and one end of the spring 9 to be tested is sleeved inside the elastic steel sleeve 605.

It should be noted that, through the setting of fixing bolt 604, elastic steel sleeve 605 and screw 606, when the spring 9 one end inboard that awaits measuring is fixed in fixed slider 603 one end outside, wrap up in the spring 9 one end outer wall that awaits measuring through the elastic steel sleeve 605 of deformability this moment, then the cooperation of rethread fixing bolt 604 and screw 606, fix elastic steel sleeve 605 for elastic steel sleeve 605 overlaps the spring 9 one end outside that awaits measuring, cooperates with fixed slider 603 inside and outside, increases the fixed fastness of spring 9 that awaits measuring, guarantees experimental security.

Working principle: when the spring 9 to be tested is used, one end of any spring 9 to be tested is sleeved on the inner sides of the two fixed sliding blocks 603, at the moment, the rotating adjusting screw 602 is meshed with one end of the fixed sliding blocks 603, so that the two fixed sliding blocks 603 move relatively to support the inner sides of one end of the spring 9 to be tested, the spring 9 to be tested is fixed, then when the inner sides of one end of the spring 9 to be tested are fixed on the outer sides of one end of the fixed sliding blocks 603, the outer walls of one end of the spring 9 to be tested are wrapped by the deformable elastic steel sleeve 605, then the elastic steel sleeve 605 is matched with the screw holes 606 through the fixing bolts 604, the elastic steel sleeve 605 is sleeved on the outer sides of one end of the spring 9 to be tested and matched with the inner sides and the outer sides of the fixed sliding blocks 603, the fixing firmness of the spring 9 to be tested is improved, and the springs with different sizes can be fixed and tested while the safety of tests is guaranteed.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A spring fatigue testing device is characterized in that: the device comprises a lower mounting seat (1), an upper mounting seat (2), a plurality of springs (9) to be tested and a test host (8), wherein a sliding rod (3) is fixedly connected between the lower mounting seat (1) and the upper mounting seat (2), a first pressing plate (4) is fixedly arranged at the top of the lower mounting seat (1), a second pressing plate (5) is slidably connected with the outer wall of the sliding rod (3), a test telescopic cylinder (7) is fixedly arranged at the axis of the upper mounting seat (2), and fixing components are arranged on the first pressing plate (4) and the second pressing plate (5);

the fixing assembly comprises a plurality of sliding grooves (601), adjusting screws (602) and a plurality of fixing sliding blocks (603), wherein the sliding grooves (601) are respectively formed in the inner sides of a first pressing plate (4) and a second pressing plate (5), the adjusting screws (602) are respectively and rotatably connected in the inner sides of the first pressing plate (4) and the second pressing plate (5), and one ends of the fixing sliding blocks (603) are slidably connected in the inner sides of the sliding grooves (601).

2. The spring fatigue testing device according to claim 1, wherein: one end of the adjusting screw (602) is positioned at the inner side of the chute (601), and one end of the adjusting screw (602) respectively penetrates through one ends of the first pressing plate (4) and the second pressing plate (5).

3. The spring fatigue testing device according to claim 1, wherein: the outer wall of one end of the adjusting screw (602) is rotationally connected to the inner side of the fixed sliding block (603), and the outer wall of one end of the adjusting screw (602) is in threaded connection with the fixed sliding block (603).

4. The spring fatigue testing device according to claim 1, wherein: the fixing assembly further comprises a plurality of fixing bolts (604), an elastic steel sleeve (605) and a plurality of screw holes (606), the screw holes (606) are formed in one side of the fixing sliding block (603), the elastic steel sleeve (605) is sleeved on the outer side of the fixing sliding block (603), and one end of each fixing bolt (604) is fixedly arranged on the inner side of each screw hole (606).

5. The spring fatigue testing device according to claim 4, wherein: the elastic steel sleeve (605) is fixedly arranged on the outer side of the fixed sliding block (603) through the matching of the fixed bolt (604) and the screw hole (606), and the fixed bolt (604) is matched with the screw hole (606).

6. The spring fatigue testing device according to claim 1, wherein: the inner side of one end of the spring (9) to be tested is sleeved outside one end of the fixed sliding block (603), and the outer side of one end of the spring (9) to be tested is sleeved inside the elastic steel sleeve (605).