CN216247497U

CN216247497U - Impact test device for testing simply supported beam

Info

Publication number: CN216247497U
Application number: CN202122778623.XU
Authority: CN
Inventors: 秦林康
Original assignee: Anhui Huabiao Testing Instrument Co ltd
Current assignee: Anhui Huabiao Testing Instrument Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-08
Anticipated expiration: 2031-11-15

Abstract

The utility model is suitable for the technical field of impact tests, and provides an impact test device for testing a simply supported beam, which comprises a device base, wherein a rack is vertically arranged on one side of the top of the device base, a swing arm is rotatably arranged on the top of the rack, a pendulum bob is detachably arranged at the bottom of the swing arm, an adjusting frame is transversely arranged above the device base in a lifting manner, a bidirectional threaded screw rod is rotatably and transversely arranged in the adjusting frame, two ends of the surface of the bidirectional threaded screw rod are in threaded connection with first screw rod sleeves, and threads at two ends of the surface of the bidirectional threaded screw rod are oppositely arranged. This impact test device is used in test of simply supported beam through adjustment mechanism, can adjust the fixed position at experiment article both ends to can experiment article can not produce different experimental effect because of the difference of fixed position, consequently improve the practicality, and easy operation, convenient to use.

Description

Impact test device for testing simply supported beam

Technical Field

The utility model belongs to the technical field of impact tests, and particularly relates to an impact test device for a simply supported beam test.

Background

The test aims to determine whether each property fails when the product is subjected to a series of impacts at normal and extreme temperatures, wherein the simple beam impact tester is used for measuring the impact toughness of non-metallic materials such as hard plastics, fiber reinforced composites, nylon, glass fiber reinforced plastics, ceramics, cast stone, plastic electrical insulation materials and the like.

The simple beam impact testing machine generally utilizes the support on the mesa to fix the both ends of experimental article, then utilizes the pendulum to carry out impact test, but current fixed bolster can't adjust the fixed position at experimental article both ends to can't embody experimental article and can not produce different experimental effects because of the difference of fixed position, consequently reduced the practicality.

SUMMERY OF THE UTILITY MODEL

The utility model provides an impact test device for testing a simply supported beam, and aims to solve the problem that fixing supports cannot adjust fixing positions of two ends of a test object, so that different test effects of the test object cannot be realized due to different fixing positions, and the practicability is reduced.

The utility model is realized in such a way, the impact test device for testing the simply supported beam comprises a device base, a rack is vertically arranged on one side of the top of the device base, a swing arm is rotatably arranged on the top of the rack, a pendulum bob is detachably arranged at the bottom of the swing arm, an adjusting frame is transversely arranged above the device base in a lifting manner, a bidirectional threaded screw rod is rotatably and transversely arranged in the adjusting frame, two ends of the surface of the bidirectional threaded screw rod are respectively in threaded connection with a first screw rod sleeve, threads at two ends of the surface of the bidirectional threaded screw rod are oppositely arranged, a limiting seat extending to the upper part of the adjusting frame is fixedly connected to the top of the first screw rod sleeve, a placing groove is arranged on the surface of the limiting seat, a pressing plate is rotatably arranged on one side of the placing groove at the top of the limiting seat, and an inserting rod is vertically arranged at the bottom of the other side of the pressing plate, the other side of the top of the limiting seat is provided with a clamping groove clamped with the inserted rod, and a limiting rod clamped with the inserted rod is transversely arranged in the clamping groove in a sliding manner.

Preferably, the bottom of the inner cavity of the adjusting frame is transversely and fixedly connected with a slide way, a slide block fixedly connected with the first screw rod sleeve is arranged in the slide way, and a knob extending to the outside of the adjusting frame is arranged at the other end of the bidirectional threaded screw rod.

Preferably, the transmission chamber has been seted up to the inside of device base, the both sides of transmission intracavity chamber are all rotationally vertical to be provided with the one-way screw lead screw, the surperficial threaded connection of one-way screw lead screw has second lead screw cover, two horizontal fixedly connected with fixed plate between the second lead screw cover, the surface of fixed plate is provided with and extends to the connecting rod of device base top, and the top of connecting rod with the bottom fixed connection of adjustment frame.

Preferably, the surface of the device base is located the mounting grooves are formed in the two sides of the connecting rod, and the inner wall of each mounting groove is fixedly connected with a return spring fixedly connected with the bottom of the adjusting frame.

Preferably, the inner cavity of the transmission cavity is rotatably and vertically provided with a transmission rod in a penetrating mode, the top of the transmission rod is fixedly connected with a driving wheel, and a driven wheel in transmission connection with the driving wheel through a chain is arranged on the surface of the one-way threaded screw rod.

Preferably, the bottom fixedly connected with thread bush of swing arm inner chamber, the inside threaded connection of thread bush has the threaded rod, the bottom fixedly connected with limiting plate of threaded rod, the both sides of device base bottom all are provided with the landing leg through screw thread adjustable festival.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: the impact test device for testing the simply supported beam comprises an adjusting mechanism consisting of an adjusting frame, a two-way threaded screw rod, a first screw rod sleeve and a limiting seat, wherein the first screw rod sleeve can be driven to mutually approach or separate through the two-way threads by the rotation of the two-way threaded screw rod, the limiting seat can be driven to relatively move when the first screw rod sleeves approach or separate from each other, so that the position of the limiting seat can be adjusted, namely, the fixed positions of two ends of an experimental article can be adjusted, so that the experimental article can not generate different test effects due to different fixed positions, the practicability is improved, the operation is simple, the use is convenient, the placing groove, the pressing plate, the inserting rod and the limiting rod can form the limiting mechanism, when the experimental article is placed in the placing groove, the inserting rod can be inserted into the notch formed in the limiting seat through the rotation of the pressing plate, then insert the gag lever post, make gag lever post and inserted bar block each other, can play spacing effect, avoid experimental article to drop because of the impact of pendulum, improved the security.

Drawings

FIG. 1 is a schematic side sectional view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the front view of the structure of the limiting seat shown in FIG. 1;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: 1-device base, 2-frame, 3-swing arm, 4-pendulum bob, 5-adjusting frame, 6-two-way screw rod, 7-first screw rod sleeve, 8-limiting seat, 9-placing groove, 10-pressing plate, 11-inserted rod, 12-limiting rod, 13-slideway, 14-sliding block, 15-transmission cavity, 16-one-way screw rod, 17-second screw rod sleeve, 18-fixing plate, 19-connecting rod, 20-mounting groove, 21-reset spring, 22-transmission rod, 23-driving wheel, 24-driven wheel, 25-screw sleeve, 26-threaded rod and 27-supporting leg.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an impact test device is used in test of simply supported beam, includes device base 1, and one side at 1 top of device base is vertical to be provided with frame 2, and the top of frame 2 rotationally is provided with swing arm 3, and the bottom detachably of swing arm 3 is provided with pendulum 4.

Can form the impact test device through setting up of device base 1, frame 2, swing arm 3 and pendulum 4, utilize frame 2 to rise the one end of swing arm 3, when the other end of swing arm 3 rotates, can carry out the impact experiment to test article through pendulum 4.

The device base 1 is provided with a lifting adjusting frame 5 in the upper part, the adjusting frame 5 is rotatably and transversely provided with a bidirectional threaded screw rod 6 in the inner part, the two ends of the surface of the bidirectional threaded screw rod 6 are respectively connected with a first screw rod sleeve 7 in a threaded manner, and the threads at the two ends of the surface of the bidirectional threaded screw rod 6 are oppositely arranged.

Because the threads on the surface of the two-way thread screw rod 6 are arranged oppositely, the two-way thread screw rod 6 can drive the first screw rod sleeve 7 to be close to or far away from each other through the threads when rotating, so that the subsequent parts are driven to adjust positions, and the driving effect is achieved.

The top fixedly connected with of first lead screw cover 7 extends to the spacing seat 8 of 5 tops of adjusting frame, and standing groove 9 has been seted up on the surface of spacing seat 8, and the top of spacing seat 8 and the one side that is located standing groove 9 rotationally are provided with clamp plate 10.

Will drive spacing seat 8 relative movement when first lead screw cover 7 to utilize spacing seat 8 relative movement can adjust the fixed position of experimental article, thereby can experiment experimental article can not produce different experimental effects because of the difference of fixed position, consequently improved the practicality, and easy operation, convenient to use.

An inserting rod 11 is vertically arranged at the bottom of the other side of the pressing plate 10, a clamping groove clamped with the inserting rod 11 is formed in the other side of the top of the limiting seat 8, and a limiting rod 12 clamped with the inserting rod 11 is horizontally arranged in the clamping groove in a sliding mode.

Place in the inside of standing groove 9 when experimental article, can make inserted bar 11 insert to spacing seat 8 through the rotation of clamp plate 10 and set up the notch in, then insert gag lever post 12, make

gag lever post

12 and 11 mutual block of inserted bar, can play spacing effect, avoid experimental article to drop because of pendulum 4's impact, improved the security.

Further, the bottom of the inner cavity of the adjusting frame 5 is transversely and fixedly connected with a slide way 13, a slide block 14 fixedly connected with the first screw rod sleeve 7 is slidably arranged inside the slide way 13, and a knob extending to the outside of the adjusting frame 5 is arranged at the other end of the bidirectional threaded screw rod 6.

In this embodiment, the slide 13 can make the slide block 14 slide inside it, so as to play a role of limiting when the first screw rod sleeve 7 moves, so that it cannot rotate synchronously with the two-way threaded screw rod 6, and the knob can facilitate an operator to rotate the two-way threaded screw rod 6 inside the adjusting frame 5.

Further, the transmission cavity 15 has been seted up to the inside of device base 1, and the both sides of the 15 inner chambers in transmission cavity are all rotationally vertical to be provided with one-way screw lead screw 16, and the surperficial threaded connection of one-way screw lead screw 16 has second lead screw cover 17, and horizontal fixedly connected with fixed plate 18 between two second lead screw covers 17, and the surface of fixed plate 18 is provided with the connecting rod 19 that extends to device base 1 top, and the bottom fixed connection of the top of connecting rod 19 and alignment jig 5.

In this embodiment, one-way screw lead screw 16 will drive second lead screw cover 17 through the screw when rotating and go up and down, will drive connecting rod 19 through fixed plate 18 when second lead screw cover 17 goes up and down to go up and down, thereby utilize the lift of connecting rod 19 can adjust the high position of adjusting frame 5, thereby make the device can carry out altitude mixture control according to the size of experimental article, thereby can adjust pendulum 4's impact position, make it can test different impact position to experimental article's influence, the practicality has been improved.

Further, the surface of the device base 1 and the two sides of the connecting rod 19 are both provided with mounting grooves 20, and the inner wall of the mounting groove 20 is fixedly connected with a return spring 21 fixedly connected with the bottom of the adjusting frame 5.

In this embodiment, the force required for the lifting of the adjusting frame 5 can be increased by the elastic deformation of the return spring 21, so that the tightness between the second screw rod sleeve 17 and the one-way threaded screw rod 16 can be improved, and the test is more accurate.

Further, the inner cavity of the transmission cavity 15 is rotatably and vertically provided with a transmission rod 22 in a penetrating manner, the top of the transmission rod 22 is fixedly connected with a driving wheel 23, and the surface of the one-way threaded screw rod 16 is provided with a driven wheel 24 in transmission connection with the driving wheel 23 through a chain.

In this embodiment, the driving wheel 23 can be driven to rotate by the rotation of the transmission rod 22, and when the driving wheel 23 rotates, the driven wheel 24 is driven to rotate by the chain, so that the one-way threaded screw rod 16 can be driven to rotate by the rotation of the driven wheel 24, which makes it more convenient for the operator to rotate the one-way threaded screw rod 16 inside the transmission cavity 15.

Further, the bottom of the inner cavity of the swing arm 3 is fixedly connected with a threaded sleeve 25, the inner thread of the threaded sleeve 25 is connected with a threaded rod 26, the bottom of the threaded rod 26 is fixedly connected with a limiting plate, and two sides of the bottom of the device base 1 are both provided with supporting legs 27 in an adjustable mode through threads.

In this embodiment, the rotation that utilizes threaded rod 26 can break away from or install through screw thread and thread bush 25 to be convenient for pendulum 4's change, thereby utilize pendulum 4's change can adjust the size of impact force degree, improved the practicality, because landing leg 27 is adjustable setting, make the device also can keep the horizontality on the mesa of unevenness, guaranteed that pendulum 4 can not lead to the inaccurate condition of experiment because of the slope.

The working principle and the using process of the utility model are as follows: when the impact test is needed to be carried out on the test object, firstly, the transmission rod 22 is rotated, when the transmission rod 22 rotates, the driving wheel 23 can be driven to rotate, when the driving wheel 23 rotates, the driven wheel 24 can be driven to rotate through a chain, so that the one-way threaded lead screw 16 can be driven to rotate by the rotation of the driven wheel 24, when the one-way threaded lead screw 16 rotates, the second lead screw sleeve 17 can be driven to ascend and descend through a thread, when the second lead screw sleeve 17 ascends and descends, the connecting rod 19 can be driven to ascend and descend through the fixing plate 18, so that the height position of the adjusting frame 5 can be adjusted by the ascending and descending of the connecting rod 19, when the position height adjustment of the adjusting frame 5 is completed, the test object is placed inside the placing groove 9, then the inserting rod 11 can be inserted into the notch formed in the limiting seat 8 through the rotation of the pressing plate 10, then the limiting rod 12 is inserted, so that the limiting rod 12 is mutually clamped with the inserting rod 11, when the different fixed positions of needs test are to the influence of experimental article, at first rotate two-way screw lead screw 6, make two-way screw lead screw 6 drive first lead screw cover 7 through two-way screw and be close to each other or keep away from, can drive spacing seat 8 relative movement when first lead screw cover 7 is close to each other or keeps away from, thereby make spacing seat 8's position can be adjusted, can adjust the fixed position at experimental article both ends, thereby can experimental article can not produce different experimental effects because of the difference of fixed position.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an impact test device is used in test of simply supported beam which characterized in that: comprises a device base (1), a frame (2) is vertically arranged on one side of the top of the device base (1), a swing arm (3) is rotatably arranged on the top of the frame (2), a pendulum (4) is detachably arranged at the bottom of the swing arm (3), an adjusting frame (5) is transversely arranged above the device base (1) in a liftable manner, a two-way thread lead screw (6) is rotatably and transversely arranged inside the adjusting frame (5), a first lead screw sleeve (7) is in threaded connection with both ends of the surface of the two-way thread lead screw (6), threads at both ends of the surface of the two-way thread lead screw (6) are oppositely arranged, a limiting seat (8) extending to the upper part of the adjusting frame (5) is fixedly connected to the top of the first lead screw sleeve (7), a placing groove (9) is formed in the surface of the limiting seat (8), a pressing plate (10) is rotatably arranged on one side, which is positioned at the top of the limiting seat (8) and is positioned at the placing groove (9), the bottom of the other side of the pressing plate (10) is vertically provided with an inserted bar (11), the other side of the top of the limiting seat (8) is provided with a clamping groove clamped with the inserted bar (11) mutually, and a limiting rod (12) clamped with the inserted bar (11) mutually is horizontally arranged in the clamping groove in a slidable manner.

2. The impact test device for testing the simply supported beam as claimed in claim 1, wherein: the bottom of adjusting frame (5) inner chamber is horizontal fixedly connected with slide (13), the inside slidable of slide (13) be provided with first lead screw cover (7) fixed connection's slider (14), the other end of two-way screw lead screw (6) is provided with and extends to the outside knob of adjusting frame (5).

3. The impact test device for testing the simply supported beam as claimed in claim 1, wherein: transmission chamber (15) have been seted up to the inside of device base (1), the both sides of transmission chamber (15) inner chamber are all rotationally vertical to be provided with one-way screw lead screw (16), the surperficial threaded connection of one-way screw lead screw (16) has second lead screw cover (17), two horizontal fixedly connected with fixed plate (18) between second lead screw cover (17), the surface of fixed plate (18) is provided with and extends to connecting rod (19) of device base (1) top, and the top of connecting rod (19) with the bottom fixed connection of adjustment frame (5).

4. The impact test device for testing the simply supported beam as claimed in claim 3, wherein: the device is characterized in that the surface of the base (1) is located, mounting grooves (20) are formed in two sides of the connecting rod (19), and the inner wall of each mounting groove (20) is fixedly connected with a return spring (21) fixedly connected with the bottom of the adjusting frame (5).

5. The impact test device for testing the simply supported beam as claimed in claim 4, wherein: the inner cavity of the transmission cavity (15) is rotatably and vertically provided with a transmission rod (22) in a penetrating mode, the top of the transmission rod (22) is fixedly connected with a driving wheel (23), and a driven wheel (24) in transmission connection with the driving wheel (23) through a chain is arranged on the surface of the one-way threaded screw rod (16).

6. The impact test device for testing the simply supported beam as claimed in claim 1, wherein: the bottom fixedly connected with thread bush (25) of swing arm (3) inner chamber, the inside threaded connection of thread bush (25) has threaded rod (26), the bottom fixedly connected with limiting plate of threaded rod (26), the both sides of device base (1) bottom all are provided with landing leg (27) through screw thread adjustable festival.