CN216051190U

CN216051190U - Impact testing device

Info

Publication number: CN216051190U
Application number: CN202121950898.0U
Authority: CN
Inventors: 钱欢; 余杰; 闫大龙; 张学锋
Original assignee: Chaowei Power Group Co Ltd
Current assignee: Chaowei Power Group Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-15
Anticipated expiration: 2031-08-18

Abstract

The utility model provides an impact testing device which comprises a base, an impact ball, a supporting piece and a guide pipe, wherein the impact ball is arranged on the base; one end of the guide pipe is connected with the base; the pipe wall of the guide pipe is provided with an avoiding groove, the groove walls on two sides of the avoiding groove are provided with sliding grooves, the support part is connected with a pivot, two ends of the pivot are respectively clamped in the corresponding sliding grooves and enable the pivot to slide back and forth along the sliding grooves, the support part can rotate around the central shaft of the pivot, and the support part is used for supporting the impact balls. The impact testing device provided by the utility model can be suitable for different height impact requirements of plastic cases with various sizes on application, is convenient and quick, and can effectively solve the problems of inaccurate impact point, repeated impact and the like in the existing test. The impact test method provided by the utility model can be used for rapidly testing the impact resistance of the plastic shell.

Description

Impact testing device

Technical Field

The utility model relates to the technical field of impact testing of lead-acid batteries, in particular to an impact testing device.

Background

A lead-acid battery (VRLA) is a battery whose electrodes are made mainly of lead and its oxides and whose electrolyte is a sulfuric acid solution. In the discharge state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in a charged state, the main components of the positive electrode and the negative electrode are lead sulfate. The batteries are typically mounted in a plastic housing. The plastic shell of the storage battery generally comprises a bottom groove and a cover body, and the performance of the plastic shell directly determines whether the storage battery has the problems of liquid leakage, flame retardance and the like. Therefore, the quality of the mechanical property of the plastic shell directly affects the quality of the storage battery.

The plastic shell of the storage battery can be put into the production of the storage battery formally after being tested and qualified through a series of mechanical property tests. In a mechanical property test project, the impact resistance test has the problems of inaccurate impact point, repeated impact and the like in the current detection process, and the test result of the impact resistance test is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an impact testing device which is used for solving the problems of inaccurate impact point of a ball, repeated impact and the like in the mechanical property testing process of a plastic shell of a storage battery.

In order to achieve the purpose, the utility model adopts the following technical means:

an impact testing device comprises a base, an impact ball and a guide pipe; one end of the guide pipe is connected with the base; the guide pipe is provided with an avoiding groove, sliding grooves are formed in the groove walls of the two sides of the avoiding groove, a pivot is arranged in the sliding grooves and can slide along the sliding grooves, and a supporting piece is fixedly connected with the pivot and used for supporting the impact balls.

Preferably, the impact testing device further comprises a cover plate, and the cover plate is connected with one end, far away from the base, of the guide pipe; a first through hole is formed in the center of the cover plate; the impact ball is provided with a pull rope which penetrates through the first through hole and is fixedly connected with the impact ball.

Preferably, the base further comprises four sliding plates; the sliding plates are perpendicular to the base, the four sliding plates surround to form a rectangle, the sliding plates are connected with the base in a sliding mode, the sliding plates slide along the diagonal direction of the rectangle, and the sliding plates are used for fixing a workpiece to be measured.

Preferably, the sliding plate further comprises a fixing member, the fixing member is detachably connected with the sliding plate, and the fixing member is used for fixing the sliding plate.

Preferably, the base is provided with a screw hole, the fixing piece is provided with a second through hole, and the fixing piece comprises a bolt; and the bolt penetrates through the second through hole and is screwed into the screw hole to fix the sliding plate.

Preferably, the pipe wall of the guide pipe is provided with a first scale mark, and the first scale mark is used for measuring the distance between the impact ball and the base.

Preferably, the base is provided with a second scale mark, and the second scale mark is used for positioning a workpiece to be measured.

Preferably, the center of the base is provided with a center positioning point, and the center positioning point is used for positioning the central shaft of the guide pipe.

Preferably, the center position of the base is provided with a center positioning point, and the center positioning point is used for positioning the center shaft of the through hole.

An impact testing method comprising the steps of:

the method comprises the steps of placing a workpiece to be tested on a base, sliding a sliding plate, tightening a bolt, fixing the workpiece to be tested, connecting a guide pipe with the base, propping the supporting piece with external force, placing the impact ball on the supporting piece, penetrating a pull rope through a first through hole, connecting a cover body with the guide pipe, removing the external force, enabling the supporting piece to rotate downwards by 90 degrees, enabling the impact ball to fall on the workpiece to be tested, and pulling up the pull rope.

Compared with the prior art, the utility model has the following technical effects:

1. the impact testing device provided by the utility model can adjust the height of the impact ball through the sliding of the supporting piece, so that the impact testing device is suitable for the impact requirements of plastic shells with various sizes corresponding to different heights, the impact ball can conveniently fall down due to the fact that the supporting piece can rotate around the pivot, and the problems of inaccurate impact point, repeated impact and the like in the existing test can be effectively solved through the guide pipe.

2. The impact test method provided by the utility model can be used for rapidly testing the impact resistance of the plastic shell.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 shows a schematic view of an impact testing apparatus of the present invention;

FIG. 2 shows a cross-sectional view of an impact testing apparatus of the present invention;

FIG. 3 shows an enlarged view of portion A of FIG. 2;

figure 4 shows a schematic view of the base of the impact testing apparatus of the present invention.

Description of the main element symbols:

1-a base; 11-a sliding plate; 12-a central location point; 2-impact ball; 3-a support; 31-a pivot; 4-a guide tube; 41-avoidance groove; 42 chute; 5-cover plate; 51-first via.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The ball drop test is commonly used to test the impact resistance of plastic, ceramic, acrylic, glass, lens, hardware, etc. The utility model provides an impact testing device for testing plastic products, and the device can be used for testing products made of other materials.

Example 1

Referring to fig. 1, 2 and 3, the impact testing apparatus shown therein is provided with a base 1, an impact ball 2 and a guide tube 4; one end of the guide pipe 4 is connected with the base 1; specifically, the base 1 is provided with a support (not shown), the guide tube 4 is arranged on the support, so that one end of the guide tube 4 is connected with the base 1, and a certain distance is kept between the port of the guide tube 4 and the base 1. The guide tube 4 is provided with an avoiding groove 41, sliding grooves 42 are formed in the groove walls on two sides of the avoiding groove 41, a pivot 31 is arranged in the sliding grooves 42, and the pivot 31 slides in the sliding grooves 42, so that the pivot 31 slides towards the other end along one end of the guide tube 4. The pivot 31 can rotate in the slide groove 42, the support 3 is fixedly connected to the pivot 31, and the support 3 can rotate along with the pivot 31. The support 3 serves to support the impact ball 2. The pivot 31 is arranged to enable the impact ball 2 to be supported by the support 3 under the condition of external force, and during testing, the impact ball 2 falls down only by removing the external force, so that the test is completed. When the ball falling test is carried out, the impact tests with different heights are carried out on the same workpiece to be tested for many times, so that the pivot slides in the sliding groove by opening the sliding grooves on the two side groove walls of the avoiding groove, and the height of the impact ball is conveniently adjusted.

Referring to fig. 1, 2 and 3, the impact testing apparatus shown in the figures further includes a cover plate 5, wherein the cover plate 5 is connected to an end of the guide tube 4 away from the base 1; a first through hole 51 is formed in the center of the cover plate 5; the impact ball 2 is provided with a pull rope which passes through the first through hole 51 and is fixedly connected with the impact ball 2. The arrangement of the pull rope is used for preventing the impact ball 2 from bouncing to impact the workpiece to be measured again after the impact ball 2 impacts the workpiece to be measured. When the device is used, after the impact ball 2 impacts a workpiece to be detected, the pull rope is pulled up by external force, so that the impact ball 2 can be prevented from impacting the workpiece to be detected again.

Referring to fig. 4, the base 1 shown in the figure further includes four sliding plates 11; the sliding plate 11 comprises two mutually perpendicular faces, both of which are perpendicular to the base 1. The four sliding plates 11 enclose a rectangle, and a workpiece to be measured can be placed in the rectangle. The sliding plate 11 is connected with the base 1 in a sliding mode, and the sliding plate 11 slides along the diagonal direction of the rectangle and is used for fixing a workpiece to be measured. The sliding plate 11 can conveniently fix the workpiece to be measured, and can also prevent the rebound of the workpiece to be measured after the impact ball 2 impacts the workpiece to be measured. Preferably, the sliding plate 11 further comprises a fixing member (not shown) detachably connected to the sliding plate, and the fixing member is used for fixing the sliding plate 11. Preferably, the base is provided with a screw hole (not shown), the fixing member is provided with a second through hole (not shown), and the fixing member includes a bolt (not shown); the bolt passes through the second through hole and is screwed into the screw hole to fix the sliding plate 11. The sliding plate 11 can fix the workpiece to be tested, and prevent the workpiece to be tested from moving and causing test failure.

Preferably, a first scale mark (not shown) is arranged on the pipe wall of the guide pipe 4, and the first scale mark is used for measuring the distance between the impact ball 2 and the base 1. The base 1 is provided with a second scale mark (not shown) for positioning a workpiece to be measured. The base 1 is provided with a central positioning point 12 at the center, and the central positioning point 12 is used for positioning the guide tube 4 and the central axis of the first through hole 51.

Example 2

Example 2 provides an impact testing method, first, the center axis of the guide tube 4 is aligned with the center positioning point 12, then the guide tube 4 is mounted on the bracket, then the center axis of the second through hole 51 of the cover 5 is aligned with the center positioning point 12, the pulling rope is passed through the first through hole 51, an external force is applied to the support member 3, so that the impact ball 2 is supported on the support member 3, and the cover 5 is mounted on the guide tube 4. Then, a workpiece to be measured is placed on the base 1, the sliding plate 11 is slid, the bolt is tightened, the workpiece to be measured is fixed, the external force is removed, the supporting piece 3 rotates downwards by 90 degrees, the impact ball 2 falls on the workpiece to be measured, and the pull rope is pulled up at the moment to prevent the impact ball from impacting the workpiece to be measured again. The falling height of the impact ball 2 can be measured by the first scale mark, and the impact point of the workpiece to be measured can be measured by the second scale mark.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An impact testing device, characterized in that: comprises a base, a punching ball, a support part and a guide pipe; one end of the guide pipe is connected with the base; the pipe wall of the guide pipe is provided with an avoiding groove, the groove walls on two sides of the avoiding groove are provided with sliding grooves, the support part is connected with a pivot, two ends of the pivot are respectively clamped in the corresponding sliding grooves and enable the pivot to slide back and forth along the sliding grooves, the support part can rotate around the central shaft of the pivot, and the support part is used for supporting the impact balls.

2. The impact testing apparatus of claim 1, wherein: the cover plate is connected with one end, far away from the base, of the guide pipe; a first through hole is formed in the center of the cover plate; the impact ball is connected with a pull rope, and the pull rope penetrates through the first through hole to be fixedly connected with the impact ball.

3. The impact testing apparatus of claim 1, wherein: the base further comprises four sliding plates; the sliding plates are perpendicular to the base, the four sliding plates surround to form a rectangle, the sliding plates are connected with the base in a sliding mode, the sliding plates slide along the diagonal direction of the rectangle, and the sliding plates are used for fixing a workpiece to be measured.

4. An impact testing apparatus according to claim 3, wherein: the sliding plate also comprises a fixed piece, the fixed piece is detachably connected with the sliding plate, and the fixed piece is used for fixing the sliding plate; the base is provided with a screw hole, the fixing piece is provided with a second through hole, and the fixing piece comprises a bolt; and the bolt penetrates through the second through hole and is screwed into the screw hole to fix the sliding plate.

5. The impact testing apparatus of claim 1, wherein: the pipe wall of stand pipe is equipped with first scale sign, first scale sign is used for measuring dash the ball with the distance between the base.

6. The impact testing apparatus of claim 1, wherein: the base is provided with a second scale mark, and the second scale mark is used for positioning a workpiece to be measured.

7. The impact testing apparatus of claim 1, wherein: the center of the base is provided with a center positioning point which is used for positioning the center shaft of the guide pipe.

8. The impact testing apparatus of claim 2, wherein: the center position of the base is provided with a center positioning point, and the center positioning point is used for positioning a center shaft of the through hole.