CN212410328U

CN212410328U - Floor type drop hammer test device

Info

Publication number: CN212410328U
Application number: CN202021046085.4U
Authority: CN
Inventors: 赵瑞
Original assignee: Baoguang Tianjin Technology Development Co ltd
Current assignee: Tianjin dameicheng Technology Co.,Ltd.
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-26
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a floor type drop hammer test device, which comprises a cabinet body, wherein an impact mechanism, a rebound prevention mechanism and a bearing mechanism are sequentially arranged inside the cabinet body from top to bottom, the impact mechanism comprises an impact frame and a lubricating device, a pulley is fixed on the impact frame, the pulley is movably connected along a slide rail, the impact frame is connected with a hammer body through an impact rod, and the hammer body can be detachably connected with a hammer head; the anti-rebound mechanism comprises upright posts arranged on two sides of the sliding rail, the upright posts are hinged with stop rods, and the stop rods are connected with the cabinet body through buffer springs; the bearing mechanism comprises a base and an anvil block arranged on the base, the center positions of the base and the anvil block are upwards opposite to the hammer head, two first supporting tables which are parallel to each other are arranged on the anvil block, and a first positioning column is connected to the center position of each first supporting table. The utility model discloses make the guide rail friction little, the anvil location is simple, the hammer bounce-back of falling easily controls.

Description

Floor type drop hammer test device

Technical Field

The utility model relates to a mechanical properties of materials test equipment technical field specifically is a console mode drop hammer test device.

Background

At present, when impact test performance of various metal materials and non-metal materials is detected, a drop hammer impact test device is mainly adopted, a drop hammer falls from a certain height, a material sample is impacted at the lowest point, and the impact resistance of the material sample is measured. Drop hammer impact test device mainly comprises guide rail, anvil, tup, provides the impact force through the tup free fall that has the weight, through guide rail guide tup whereabouts position, confirms the tup through the sample position on the anvil and hits the position, therefore the weight size of tup, frictional force size between tup and the guide rail, hit the position and all influence the test result. In addition, because the drop hammer impacts with samples made of different materials, the drop hammer can rebound at a certain height sometimes, secondary or even tertiary impact is formed on the samples made of the materials, and the test result is also influenced. Therefore, how to provide a drop hammer impact test device, which has the advantages of small guide rail friction, simple anvil positioning and easy drop hammer rebound control, is the endeavor of the technicians in the field.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a console mode drop hammer test device to solve the problem that proposes in the above-mentioned background art, the utility model discloses make that the guide rail friction is little, the anvil location is simple, the drop hammer is rebounded and is easily controlled.

In order to achieve the above object, the utility model provides a following technical scheme: a floor type drop hammer test device comprises a cabinet body, wherein an impact mechanism, an anti-rebound mechanism and a bearing mechanism are sequentially arranged in the cabinet body from top to bottom, the impact mechanism comprises a transmission chain, a slide rail, an impact frame, pulleys, an impact rod, a hammer body, a hammer head and a lubricating device, one end of the transmission chain is connected with the output end of a motor at the top of the cabinet body, the other end of the transmission chain is fixedly connected with the impact frame, the impact frame is connected with the hammer body through the impact rod, the hammer body is detachably connected with the hammer head, the pulleys are connected to two sides of the impact frame, the pulleys are connected in a sliding mode along the slide rail, and the slide rail is fixed; the anti-rebound mechanism comprises an upright post, a stop lever and a buffer spring, the upright post is arranged on two sides of the slide rail, one end of the upright post is fixed on the cabinet body, the other end of the upright post is hinged with the stop lever, and the stop lever is connected with the cabinet body through the buffer spring; the bearing mechanism comprises a base and an anvil block arranged on the base, the center positions of the base and the anvil block are upwards opposite to the hammer head, two first supporting tables which are parallel to each other are arranged on the anvil block, and a first positioning column is connected to the center position of each first supporting table.

Adopt above-mentioned technical scheme, during the experiment, place the sample on a supporting bench, that the relative face (the back) of sample breach is placed up, the first reference column of sample both sides face contact respectively, make sample breach axis and base, the anvil axle is unanimous, ensure that the back axis of sample breach is just to the axis of top tup, can accurately hit the back axis position of hitting the breach after the tup is released, after the tup falls to hit and hits the sample, impact frame along with the tup falls down in the very short time is blockked by the pin, under pin and buffer spring's combined action, to forming the support because of the tup of certain height of collision rebound, avoid the hammer to hit the sample twice, finally through the crackle that sprouts and expand from the breach, judge the mechanical properties of material. The bearing mechanism comprising the first supporting table and the first positioning column is arranged, so that the sample placing operation is simple, quick and accurate, and the test hammering position is effective; the anti-rebound mechanism comprising the upright post, the stop lever and the buffer spring is arranged, so that secondary impact of the hammer head on the sample is avoided, and more accurate test data is ensured; the setting of the impact mechanism that constitutes such as slide rail, pulley is convenient for receive the friction of slide rail direction when reducing the tup free fall, mainly improves experimental accuracy in the above-mentioned three aspect of follow. In addition, the tup is threaded connection's the connected mode of dismantling, and the tup of being convenient for strikes the change after the deformation, avoids tup deformation to influence experimental accuracy.

Further, the base bottom is equipped with the slider, with the spout that the slider size suits is established on the cabinet body. The setting of slider and spout is convenient for pull out the laying-out of base, is in tup whereabouts position when having avoided operating personnel laying-out, improves the operational safety nature.

Furthermore, a locking device is arranged on the sliding block, the locking device comprises two symmetrical locking heads, the locking heads are respectively connected with locking rods, and a locking spring is arranged between the locking rods. The locking device is arranged to facilitate the fixation of the base.

Furthermore, a second supporting platform is arranged between the first supporting platforms, and a second positioning column is connected to the middle position of one edge of the second supporting platform. The second supporting table and the second positioning column are arranged, so that the center of the sample is opposite to the hammer head after the sample is placed.

Furthermore, the first positioning column can be detachably connected with the first supporting table, the second positioning column can be detachably connected with the second supporting table, and the detachable connection is threaded connection or plug-in connection. The positioning column is convenient to replace in time after being deformed by impact.

Further, lubricating arrangement includes pipe, water dropper and lubrication oil pump, pipe one end is connected the water dropper, the other end is connected the lubrication oil pump. The lubricating device is arranged, so that the friction guided by the sliding rail when the hammer head freely falls is further reduced, and the accuracy of test data is improved.

Furthermore, a rotating shaft is hinged to the stop lever. The arrangement of the rotating shaft is convenient for sharing the impact of the impact frame which is dropped and received by the stop lever.

Furthermore, the rotating shaft is sleeved with a buffer layer, and the buffer layer is a sponge layer or a rubber layer. The buffer layer is convenient for further relieving and absorbing impact force and is also convenient for protecting the rotating shaft.

Furthermore, the buffer layer is provided with buffer convex bodies. The arrangement of the buffer convex body is convenient for decomposing impact force and protecting the buffer layer and the rotating shaft.

Furthermore, a weight cavity is arranged in the impact frame. Different weights can be placed conveniently, and different impact forces are provided.

The utility model discloses following beneficial effect has:

1. the utility model relates to a floor type drop hammer test device, which improves the test accuracy from three aspects, and firstly, the bearing mechanism containing a support table and a positioning column is arranged to ensure that the sample placing operation is simple, rapid and accurate, and the test hammering position is ensured to be effective; the anti-rebound mechanism comprising the upright post, the stop lever and the buffer spring is arranged, so that secondary impact of the hammer head on the sample is avoided, and more accurate test data is ensured; and thirdly, the arrangement of a sliding rail, an impact mechanism of a pulley and a lubricating device is convenient for reducing the friction guided by the sliding rail when the hammer head freely falls.

2. The utility model discloses prevent that rebound mechanism still includes pivot, buffer layer and buffering convex body, is convenient for further alleviate and absorbs the impact force, the protection of the pin of also being convenient for, the whole life of rebound mechanism is prevented in the extension.

3. The utility model, the arrangement of the sliding block and the sliding groove is convenient for the pulling-out and the lofting of the base, avoids the falling position of the hammer head when the lofting is carried out by the operating personnel, and improves the operation safety; and the locking device on the sliding block is convenient for fixing the base.

Drawings

Fig. 1 is a front sectional view of a floor type drop hammer test device of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is an enlarged view of FIG. 1 at C;

fig. 6 is a top view of an anvil of a floor type drop hammer test device according to the present invention.

In the figure: 1. a cabinet body; 2. a weight cavity; 3. a drive chain; 4. a slide rail; 5. an impact frame; 6. a pulley; 7. an impact bar; 8. a hammer body; 9. a hammer head; 10. a column; 11. a stop lever; 12. a buffer spring;

13. a rotating shaft; 14. a base; 15. an anvil block; 16. a first support table; 17. a first positioning post; 18. a second support table; 19. a second positioning column; 20. a sample; 21. a sample notch; 22. a lubricating oil pump;

23. a conduit; 24. a dripper; 25. a lock head; 26. a lock lever; 27. a locking spring; 28. a slider; 29. a chute.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example 1

In the embodiment, a console mode hammer test device that falls, as shown in fig. 1, 2, 5, 1 inside impact mechanism from top to bottom is equipped with in proper order to the cabinet body, prevent rebound mechanism and bear the weight of the mechanism, impact mechanism includes driving chain 3, slide rail 4, strike frame 5, pulley 6, impact bar 7, hammer block 8, tup 9 and lubricating arrangement, the output of 1 top motor of the cabinet body is connected to 3 one end of driving chain, one end fixed connection strikes frame 5, strike frame 5 and pass through impact bar 7 and connect hammer block 8, hammer block 8 can be dismantled and connect tup 9, strike 5 both sides of frame and connect pulley 6, pulley 6 is along 4 sliding connection of slide rail, slide rail 4 fixes on the cabinet body 1. The lubricating device comprises a guide pipe 23, one end of the guide pipe 23 is connected with a dripper 24, and the other end of the guide pipe 23 is connected with a lubricating oil pump 22.

During the test, the transmission chain 3 is released, the impact frame 5 falls down along the slide rail 4 through the pulley 6, the hammer 9 firstly strikes a sample 20 below the impact frame, a sample notch 21 on the sample 20 is placed downwards, so that the hammer 9 strikes the opposite surface (back surface) of the surface where the sample notch 21 of the sample 20 is located, cracks are initiated and expanded from the notch, and the mechanical property of the material is judged. The arrangement of the pulley 6 and the slide rail 4 ensures that the impact frame 5 is less in friction when falling down, reduces the influence of the friction on the test and improves the test precision. The lubricating device is arranged, the lubricating oil in the lubricating device is conveyed into the guide pipe 23 through the lubricating oil pump 22 and is released at the dripper 24, and finally the lubricating oil reaches the sliding rail 4 and the pulley 6 to reduce the friction between the sliding rail and the pulley.

As shown in fig. 1, 3 and 4, the bearing mechanism comprises a base 14 and an anvil 15 thereon, and the center positions of the base 14 and the anvil 15 are upward opposite to the hammer 9. The bottom of the base 14 is provided with a slide block 28, a sliding groove 29 with a size corresponding to the slide block 28 is arranged on the cabinet body 1, the slide block 28 is provided with a locking device, the locking device comprises two symmetrical locking heads 25, the locking heads 25 are respectively connected with a locking rod 26, and a locking spring 27 is arranged between the locking rods 26. Two first supporting tables 16 which are parallel to each other are arranged on the anvil block 15, a first positioning column 17 is connected to the center of each first supporting table 16 through threads, a second supporting table 18 is arranged between the first supporting tables 16, and a second positioning column 19 is connected to the middle of one edge of each second supporting table 18 through threads.

During lofting, the sample 20 can be directly sent into the cabinet body 1, so that the surface where the sample notch 21 is located faces downward and is placed on the first supporting table 16, two side surfaces of the sample 20 are respectively contacted with the first positioning column 17, the central axis of the sample notch 21 is consistent with the central axes of the base 14 and the anvil block 15, and the side surface of the sample 20 opposite to the surface where the operator is located is contacted with the second positioning column 19, so that the center of the sample notch 21 is consistent with the centers of the base 14 and the anvil block 15. The central axis of the back of the sample notch 21 is ensured to be opposite to the central axis of the upper hammer 9, the center of the sample 20 is opposite to the hammer 9, and the hammer 9 can accurately hit the central position of the back of the sample notch 21 after being released. The supporting table and the positioning column are arranged, so that the sample placing operation is simple, rapid and accurate, and the test hammering position is guaranteed to be effective. The base 14 can be drawn out from the cabinet 1 and then the sample 20 is placed, and the operation is to press the two lock rods 26 toward the middle, so that the lock spring 27 is compressed, the lock 25 retracts from the convex part of the sliding groove 29, pull the slide block 28 outwards, so that the base 14 slides out, and then repeat the above steps to place the sample 20, slide the base 14 into the sliding groove 29, and lock the locking device. The slide block 28 and the sliding groove 29 are arranged to avoid the situation that an operator is in the falling position of the hammer head 9 during lofting, so that the operation safety is improved, the base 14 with different specifications can be replaced conveniently, and then samples 20 with different specifications and sizes can be placed.

As shown in fig. 1 and 6, the anti-rebound mechanism comprises upright posts 10 arranged at two sides of the slide rail 4, the upright posts 10 are hinged with stop levers 11, and the stop levers 11 are connected with the cabinet body 1 through buffer springs 12; the stop lever 11 is hinged with a rotating shaft 13, the rotating shaft 13 is sleeved with a buffer layer, and the buffer layer is provided with a buffer convex body.

After the sample 20 is hit to tup 9, in the very short time, impact frame 5 along with tup 9 drops is blockked by pivot 13, and buffer layer and the buffering convex body on the pivot 13 decompose partial impact force, and remaining impact force transmits to pin 11 and buffer spring 12 and decomposes, and under pin 11 and buffer spring 12's combined action, to forming the support because of the tup 9 of certain height of collision bounce-back, avoid the tup 9 to hit sample 20 and hit the mistake for the second time.

In summary, the floor type drop hammer test device in the embodiment improves the test accuracy in three aspects, and firstly, the friction of the slide rail 4 is small, and the test data is ensured to be more accurate; secondly, the anvil block 15 is simple to position, and the test hammering position is guaranteed to be effective; thirdly, the rebound of the drop hammer is easy to control, and the secondary striking of the hammer 9 on the sample 20 is avoided.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or replaced with equivalents, and these modifications or equivalent replacements cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floor type drop hammer test device comprises a cabinet body (1) and is characterized in that an impact mechanism, an anti-rebound mechanism and a bearing mechanism are sequentially arranged in the cabinet body (1) from top to bottom, the impact mechanism comprises a transmission chain (3), a slide rail (4), an impact frame (5), a pulley (6), an impact rod (7), a hammer body (8), a hammer head (9) and a lubricating device, one end of the transmission chain (3) is connected with the output end of the motor at the top of the cabinet body (1), one end of the transmission chain is fixedly connected with the impact frame (5), the impact frame (5) is connected with the hammer body (8) through the impact rod (7), the hammer body (8) is detachably connected with the hammer head (9), two sides of the impact frame (5) are connected with the pulleys (6), the pulley (6) is connected with the sliding rail (4) in a sliding manner, and the sliding rail (4) is fixed on the cabinet body (1);

the anti-rebound mechanism comprises upright columns (10), a stop lever (11) and a buffer spring (12), the upright columns (10) are arranged on two sides of the sliding rail (4), one end of each upright column is fixed on the cabinet body (1), the other end of each upright column is hinged with the stop lever (11), and the stop lever (11) is connected with the cabinet body (1) through the buffer spring (12);

the bearing mechanism comprises a base (14) and an anvil block (15) arranged on the base, the center positions of the base (14) and the anvil block (15) are over against the hammer head (9), two first supporting tables (16) which are parallel to each other are arranged on the anvil block (15), and a first positioning column (17) is connected to the center position of each first supporting table (16).

2. A floor drop hammer test device according to claim 1, wherein a slide block (28) is provided at the bottom of the base (14), and a slide groove (29) with a size suitable for the slide block (28) is provided on the cabinet body (1).

3. A floor type drop hammer test device according to claim 2, wherein a locking device is arranged on the sliding block (28), the locking device comprises two symmetrical locking heads (25), the locking heads (25) are respectively connected with locking rods (26), and a locking spring (27) is arranged between the locking rods (26).

4. A floor drop hammer test device according to claim 1, wherein a second support table (18) is arranged between the first support tables (16), and a second positioning column (19) is connected to an edge of the second support table (18) at a middle position.

5. A floor drop hammer test device according to claim 4, wherein the first positioning column (17) is detachably connected with the first support table (16), the second positioning column (19) is detachably connected with the second support table (18), and the detachable connection is a threaded connection or a plug-in connection.

6. A floor drop hammer test device according to claim 1, wherein the lubricating device comprises a conduit (23), a water dropper (24) and a lubricating oil pump (22), one end of the conduit (23) is connected with the water dropper (24), and the other end is connected with the lubricating oil pump (22).

7. A floor drop hammer test apparatus according to claim 1, wherein the stop lever (11) is hinged with a rotating shaft (13).

8. A floor drop hammer test apparatus as claimed in claim 7, wherein said shaft (13) is sleeved with a buffer layer.

9. A floor type drop hammer test device according to claim 8, wherein the buffer layer is provided with buffer protrusions.

10. A floor drop hammer test apparatus according to claim 1, wherein a weight chamber (2) is provided in the impact frame (5).