CN221078003U

CN221078003U - Drop test machine

Info

Publication number: CN221078003U
Application number: CN202323205296.4U
Authority: CN
Inventors: 苏超慧
Original assignee: Shenzhen Huatian Testing Technology Co ltd
Current assignee: Shenzhen Huatian Testing Technology Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-06-04
Anticipated expiration: 2033-11-24

Abstract

The embodiment of the application provides a drop test machine, which relates to the field of drop test equipment; the test supporting plate comprises a swing arm, a rotating arm and a supporting plate, one end of the swing arm is connected with the falling driving device, the other end of the swing arm is hinged with one end of the rotating arm, and the other end of the rotating arm is connected with the supporting plate; the lifting sliding seat is internally provided with a tensioning device which is respectively connected with the swing arm and the rotating arm through two chains and is used for tensioning or loosening the chains; when the falling driving device drives the swing arm to swing downwards, the swing arm drives the tensioning device to operate through the chain, so that the chain connected with the rotating arm is loosened, and the rotating arm rotates downwards under the action of gravity. The application can increase the separation angle between the test supporting plate and the test sample, assist the test supporting plate to separate from the test sample rapidly, and improve the accuracy of the drop test result of the test sample.

Description

Drop test machine

Technical Field

The utility model relates to the field of drop test equipment, in particular to a drop test machine.

Background

The testing machine is a precision test instrument for measuring physical and mechanical properties of materials or products under various conditions and environments, such as measuring strength and fatigue life of metallic materials, nonmetallic materials, mechanical parts, engineering structures, and the like.

The drop test machine is a device for testing the drop resistance of a product, and the principle is that the product to be tested is regulated to a specified height and then dropped, so that the damage of the product after dropping is evaluated.

The existing drop test machine is characterized in that a test sample is placed on a test supporting plate, the test sample is compressed through a compression adjusting frame above, and the test supporting plate is driven to swing through a driving motor during testing, so that the test sample falls from the test supporting plate to a bottom plate, but the swing angle of the test supporting plate cannot reach ninety degrees vertically in the process, so that the test sample is easy to collide with the test supporting plate or a clamping groove formed in the test supporting plate during falling to cause buffer influence on the test supporting plate, and further a test result cannot be accurately obtained.

Disclosure of utility model

In view of the above, embodiments of the present utility model have been made to provide a drop test machine that overcomes or at least partially solves the above-described problems.

The drop test machine comprises a frame, a guide rod, a lifting driving device, a lifting sliding seat, a compaction adjusting frame and a test supporting plate, wherein the guide rod is vertically arranged on the frame, the guide rod is connected with the lifting driving device, and the lifting sliding seat is arranged on the guide rod in a sliding penetrating manner; the test supporting plate is arranged at the bottom of the lifting sliding seat and connected with the falling driving device; the compaction adjusting frame is arranged at the top of the lifting sliding seat; the test supporting plate comprises a swing arm, a rotating arm and a supporting plate, one end of the swing arm is connected with the falling driving device, the other end of the swing arm is hinged with one end of the rotating arm, and the other end of the rotating arm is connected with the supporting plate;

The lifting sliding seat is internally provided with a tensioning device which is respectively connected with the swinging arm and the rotating arm through two chains and is used for tensioning or loosening the chains;

When the falling driving device drives the swing arm to swing downwards, the swing arm drives the tensioning device to operate through the chain, so that the chain connected with the rotating arm is loosened, and the rotating arm rotates downwards under the action of gravity.

Preferably, the pressing adjusting frame comprises a first adjusting rod, a second adjusting rod, a cross rod and a pressing head, one end of the first adjusting rod is fixed at the top of the lifting sliding seat, the pressing head is fixed at the bottom end of the second adjusting rod, the first adjusting rod and the second adjusting rod are vertically arranged in parallel, the cross rod is vertically connected with the first adjusting rod and the second adjusting rod, and a sliding lock catch is arranged at the joint of the cross rod and the first adjusting rod and the second adjusting rod respectively; at least one telescopic supporting rod is connected between the first adjusting rod and the second adjusting rod, one end of the telescopic supporting rod is in sliding connection with the first adjusting rod, and the other end of the telescopic supporting rod is fixedly connected with the second adjusting rod.

Preferably, two telescopic support rods are arranged, the two telescopic support rods are respectively positioned above and below the cross rod, and the two telescopic support rods are respectively close to two ends of the first adjusting rod; the first adjusting rod is sleeved with two sliding rings, and one end of the telescopic supporting rod is connected with the sliding rings.

Preferably, the telescopic supporting rod is a threaded telescopic rod.

Preferably, the tensioning device comprises a first gear and a second gear, the first gear and the second gear are meshed with each other, one end of one chain is connected with the end face of the first gear, and the other end of the chain is connected with the swinging arm; one end of the other chain is wound on the gear shaft of the second gear, and the other end of the other chain is connected with the rotating arm.

Preferably, the outer wall of the lifting sliding seat is further provided with a rotary handle, and the rotary handle penetrates through the lifting sliding seat to be connected with a gear shaft of the first gear or the second gear.

Preferably, the maximum included angle between the swing arm and the rotating arm is 180 °.

Preferably, the supporting plate is provided with a plurality of positioning grooves, and the positioning grooves are bar-shaped or/and circular.

Preferably, the pressing head is of a V-shaped structure, and a spring is arranged between the V-shaped structures.

The application has the following advantages:

in the embodiment of the application, the guide rod is vertically arranged on the frame, the guide rod is connected with the lifting driving device, and the lifting sliding seat is arranged on the guide rod in a sliding way; the test supporting plate is arranged at the bottom of the lifting sliding seat and connected with the falling driving device; the compaction adjusting frame is arranged at the top of the lifting sliding seat, the test supporting plate comprises a swing arm, a rotating arm and a supporting plate, one end of the swing arm is connected with the falling driving device, the other end of the swing arm is hinged with one end of the rotating arm, and the other end of the rotating arm is connected with the supporting plate; the lifting sliding seat is internally provided with a tensioning device which is respectively connected with the swinging arm and the rotating arm through two chains and is used for tensioning or loosening the chains; when the falling driving device drives the swing arm to swing downwards, the swing arm drives the tensioning device to operate through the chain, so that the chain connected with the rotating arm is loosened, and the rotating arm rotates downwards under the action of gravity. The lifting sliding seat is driven to slide on the guide rod through the lifting driving device, the height of the lifting sliding seat is adjusted, the test sample is positioned and compressed through the test supporting plate and the compression adjusting frame, and the falling driving device drives the test supporting plate to swing so that the test sample falls; through setting up the test layer board into swing arm and the articulated structure of rotor arm to be connected with straining device through the chain, make the swing arm in the test process when the swing, drive the rotor arm simultaneously and rotate downwards, so that test layer board breaks away from with test sample completely fast, avoid the test layer board to cause the hindrance to test sample, influence test result. The application can increase the separation angle between the test supporting plate and the test sample, assist the test supporting plate to separate from the test sample rapidly, and improve the accuracy of the drop test result of the test sample.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the description of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a front view of a drop test machine of the present utility model;

FIG. 2 is a schematic view of the structure of the tensioning device of the present utility model;

FIG. 3 is a schematic view of another structure of the pressing head on the second adjusting rod of the present utility model;

Reference numerals: 100. a frame; 200. a guide rod; 300. a lifting driving device; 400. lifting the sliding seat; 510. a first adjusting lever; 520. a second adjusting lever; 530. a cross bar; 540. a compacting head; 541. an arc-shaped groove; 542. a V-shaped structure; 543. a spring; 550. a sliding lock catch; 560. a telescopic support rod; 570. a slip ring; 610. a swing arm; 620. a rotating arm; 630. a support plate; 640. a chain; 650. a first gear; 660. a second gear; 670. rotating the handle; 700. a drop driving device.

Detailed Description

In order that the manner in which the above recited objects, features and advantages of the present application are obtained will become more readily apparent, a more particular description of the application briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Referring to fig. 1-3, a schematic structural diagram of a drop test machine according to the present utility model is shown, and may specifically include the following structures: the device comprises a frame 100, a guide rod 200, a lifting driving device 300, a lifting sliding seat 400, a compaction adjusting frame and a test supporting plate, wherein the guide rod 200 is vertically arranged on the frame 100, the guide rod 200 is connected with the lifting driving device 300, and the lifting sliding seat 400 is slidably arranged on the guide rod 200 in a penetrating manner; the lifting sliding seat 400 is provided with a falling driving device 700, and the test supporting plate is arranged at the bottom of the lifting sliding seat 400 and is connected with the falling driving device 700; the compaction adjusting frame is arranged at the top of the lifting sliding seat 400; the test pallet comprises a swing arm 610, a rotating arm 620 and a supporting plate 630, wherein one end of the swing arm 610 is connected with the fall driving device 700, the other end of the swing arm 610 is hinged with one end of the rotating arm 620, and the other end of the rotating arm 620 is connected with the supporting plate 630;

A tensioning device is arranged in the lifting sliding seat 400, and is respectively connected with the swing arm 610 and the rotating arm 620 through two chains 640, and the tensioning device is used for tensioning or releasing the chains 640;

when the drop driving device 700 drives the swing arm 610 to swing downward, the swing arm 610 drives the tensioning device to operate through the chain 640, so that the chain 640 connected with the rotating arm 620 is loosened, and the rotating arm 620 rotates downward under the action of gravity.

In the embodiment of the application, the guide rod 200 is vertically arranged on the stand 100 through the stand 100, the guide rod 200, the lifting driving device 300, the lifting sliding seat 400, the compression adjusting frame and the test supporting plate, the guide rod 200 is connected with the lifting driving device 300, and the lifting sliding seat 400 is slidably arranged on the guide rod 200; the lifting sliding seat 400 is provided with a falling driving device 700, and the test supporting plate is arranged at the bottom of the lifting sliding seat 400 and is connected with the falling driving device 700; the pressing adjustment rack is arranged at the top of the lifting sliding seat 400, the test supporting plate comprises a swing arm 610, a rotating arm 620 and a supporting plate 630, one end of the swing arm 610 is connected with the fall driving device 700, the other end of the swing arm 610 is hinged with one end of the rotating arm 620, and the other end of the rotating arm 620 is connected with the supporting plate 630; a tensioning device is arranged in the lifting sliding seat 400, and is respectively connected with the swing arm 610 and the rotating arm 620 through two chains 640, and the tensioning device is used for tensioning or releasing the chains 640; when the drop driving device 700 drives the swing arm 610 to swing downward, the swing arm 610 drives the tensioning device to operate through the chain 640, so that the chain 640 connected with the rotating arm 620 is loosened, and the rotating arm 620 rotates downward under the action of gravity. The lifting sliding seat 400 is driven to slide on the guide rod 200 through the lifting driving device 300, the height of the lifting sliding seat 400 is adjusted, the test sample is positioned and pressed through the test supporting plate and the pressing adjusting frame, and the falling driving device 700 drives the test supporting plate to swing so that the test sample falls; through setting up the test layer board into swing arm 610 and the articulated structure of rotor arm 620 to be connected with straining device through chain 640, make in the test process swing arm 610 when the swing, drive rotor arm 620 simultaneously and rotate downwards, so that test layer board breaks away from with the test sample completely fast, avoid the test layer board to cause the hindrance to the test sample, influence the test result. The application can increase the separation angle between the test supporting plate and the test sample, assist the test supporting plate to separate from the test sample rapidly, and improve the accuracy of the drop test result of the test sample.

Next, a drop test machine in the present exemplary embodiment will be further described.

In the embodiment of the present application, the lifting driving device 300 is used for driving the lifting sliding seat 400 to slide on the guide rod 200, and adjusting the height of the lifting sliding seat 400, so as to adjust the height required for the drop test. The drop driving device 700 is used for driving the test supporting plate to swing, so that the test sample can drop from the test supporting plate, and the drop test is completed. It should be noted that, the lifting driving device 300 and the drop driving device 700 are structural components of the existing drop test machine, and are not described in detail in the present disclosure.

The test pallet includes a swing arm 610, a rotating arm 620 and a supporting plate 630, one end of the swing arm 610 is connected with the fall driving device 700, the other end of the swing arm 610 is hinged with one end of the rotating arm 620, and the other end of the rotating arm 620 is connected with the supporting plate 630. Namely, the rotating arm 620 can drive the supporting plate 630 and the swinging arm 610 to rotate, so as to assist in rapidly separating the test supporting plate from the test sample. The lifting sliding seat 400 is internally provided with a tensioning device, the tensioning device is respectively connected with the swinging arm 610 and the rotating arm 620 through two chains 640, and the tensioning device is used for tensioning or releasing the chains 640. When the drop driving device 700 drives the swing arm 610 to swing downward, the swing arm 610 drives the tensioning device to operate through the chain 640, so that the chain 640 connected with the rotating arm 620 is loosened, and the rotating arm 620 rotates downward under the action of gravity. That is, the falling driving device 700 drives the swing arm 610 to swing downwards, and the rotating arm 620 rotates downwards, so that the test sample is prevented from sliding off the test support plate instead of falling freely due to the small swing angle of the test support plate, and the falling of the test sample is influenced, so that the test result is deviated.

As an example, the tensioning device includes a first gear 650 and a second gear 660, the first gear 650 and the second gear 660 are meshed with each other, one end of one of the chains 640 is connected to an end surface of the first gear 650 and located at the top of the end surface, and the other end is connected to the swing arm 610; one end of the other chain 640 is wound around the gear shaft of the second gear 660, and the other end is connected to the rotating arm 620.

In an embodiment, when the drop driving device 700 drives the swing arm 610 to swing downward, the swing arm 610 drives the first gear 650 to rotate through the chain 640 connected with the swing arm, and the first gear 650 drives the second gear 660 to rotate, so that the chain 640 wound on the gear shaft of the second gear 660 is loosened, and at this time, the rotating arm 620 rotates downward to drive the support plate 630 to separate from the test sample rapidly, so as to avoid interference between the test pallet and the test sample and influence on the test result.

As an example, the outer wall of the lifting slide 400 is further provided with a rotating handle 670, and the rotating handle 670 is connected to the gear shaft of the first gear 650 or the second gear 660 through the lifting slide 400. By providing the rotation handle 670 outside the elevating slide assembly 400, the operator can rotate the rotation handle 670 from the outside to restore the rotation arm 620 to the original position.

As an example, the maximum angle between the swing arm 610 and the rotating arm 620 is 180 °. By setting the maximum angle between the swing arm 610 and the swing arm 620 to 180 °, i.e., the swing arm 620 remains level with the swing arm 610 when returning to its original position, when the operator rotates the rotary handle 670 to return to the swing arm 620, it is avoided that the swing arm 620 and the swing arm 610 have an angle therebetween in an initial state due to excessive rotation, which affects the placement of the test sample.

In the embodiment of the present application, the pressing adjustment frame includes a first adjusting rod 510, a second adjusting rod 520, a cross rod 530, and a pressing head 540, where one end of the first adjusting rod 510 is fixed at the top of the lifting sliding seat 400, the pressing head 540 is fixed at the bottom end of the second adjusting rod 520, the first adjusting rod 510 is vertically parallel to the second adjusting rod 520, the cross rod 530 is vertically connected to the first adjusting rod 510 and the second adjusting rod 520, and a sliding lock catch 550 is disposed at the connection position of the cross rod 530 and the first adjusting rod 510 and the second adjusting rod 520, and the position of the second adjusting rod 520, that is, the height of the second adjusting rod 520 and the horizontal distance from the first adjusting rod 510 can be adjusted by the sliding lock catch 550, so that the position of the corresponding test sample can be accurately pressed; the sliding lock catch 550 can adopt a matching structure of a sliding block and a locking bolt, and can be locked through the locking bolt, and the locking bolt can be unscrewed when the adjustment is needed. At least one telescopic supporting rod 560 is connected between the first adjusting rod 510 and the second adjusting rod 520, one end of the telescopic supporting rod 560 is slidably connected with the first adjusting rod 510, and the other end of the telescopic supporting rod 560 is fixedly connected with the second adjusting rod 520. The existing compaction adjusting frame is generally provided with two adjusting rods, the adjusting rods easily shake when downwards moving to compact the test sample, and deviation is easily generated between the adjusting rods and the compaction position of the test sample, so that deviation of a test result is easily caused. According to the application, the telescopic support rods 560 are arranged, so that the first adjusting rod 510 can be guided in the process of vertically downwards moving and compacting the test sample, and the first adjusting rod 510 is prevented from shaking or tilting, so that the compacting position between the first adjusting rod and the test sample is accurate, and the sample testing accuracy is improved. The telescopic support bar 560 is provided in a telescopic structure so as to be adapted to the adjustment of the horizontal distance between the first adjustment bar 510 and the second adjustment bar 520.

As an example, two telescopic support rods 560 are provided, two telescopic support rods 560 are respectively located above and below the cross rod 530, and two telescopic support rods 560 are respectively close to two ends of the first adjusting rod 510, and the two telescopic support rods 560 are provided to improve connection stability between the first adjusting rod 510 and the second adjusting rod 520. And is disposed at a position near the end without affecting the vertical movement of the first adjustment lever 510 on the second adjustment lever 520; the first adjusting rod 510 is sleeved with two slip rings 570, one end of the telescopic supporting rod 560 is connected with the slip rings 570, and the slip rings 570 are adopted, so that the structure is simple and the sliding is more flexible.

As an example, the telescopic support bar 560 is a threaded telescopic bar. When the distance between the first adjusting rod 510 and the second adjusting rod 520 needs to be adjusted, the screw thread structure is unscrewed, and the screw thread structure can be screwed down to be fixed after the adjustment is completed.

As an example, the supporting plate 630 is provided with a plurality of positioning grooves, and the positioning grooves are bar-shaped or/and circular. The positioning groove is formed, so that the test sample can be positioned at different angles conveniently, and when the carton is obliquely placed, the vertex of the test sample is positioned in the positioning groove, so that the test sample is easy to position and compress and is not easy to slide.

As an example, the compaction head 540 has a cylindrical structure, and a plurality of arc grooves 541 are formed at the bottom of the cylindrical structure, so as to facilitate compaction of test samples placed at different angles.

As an example, the pressing head 540 has a V-shaped structure 542, and a spring 543 is disposed between the V-shaped structures 542. The V-shaped structure 542 can be tightly pressed with the inclined test sample, and the spring 543 is arranged in the V-shaped structure 542, so that the V-shaped structure has certain shrinkage elasticity, and the inward elastic action of the V-shaped structure can be used for tightly pressing the test sample when the V-shaped structure 542 is pressed down.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.

The drop test machine provided by the utility model is described in detail, and specific examples are applied to illustrate the principle and the implementation of the utility model, and the description of the examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims

1. The drop test machine comprises a frame, a guide rod, a lifting driving device, a lifting sliding seat, a compaction adjusting frame and a test supporting plate, wherein the guide rod is vertically arranged on the frame and is connected with the lifting driving device; the lifting sliding seat is arranged on the guide rod in a sliding penetrating manner, the lifting sliding seat is provided with a falling driving device, and the test supporting plate is arranged at the bottom of the lifting sliding seat and is connected with the falling driving device; the compaction adjusting frame is arranged at the top of the lifting sliding seat; the test supporting plate is characterized by comprising a swing arm, a rotating arm and a supporting plate, wherein one end of the swing arm is connected with the falling driving device, the other end of the swing arm is hinged with one end of the rotating arm, and the other end of the rotating arm is connected with the supporting plate;

2. The drop test machine according to claim 1, wherein the compression adjusting frame comprises a first adjusting rod, a second adjusting rod, a cross rod and a compression head, one end of the first adjusting rod is fixed at the top of the lifting sliding seat, the compression head is fixed at the bottom end of the second adjusting rod, the first adjusting rod and the second adjusting rod are vertically arranged in parallel, the cross rod is vertically connected with the first adjusting rod and the second adjusting rod, and a sliding lock catch is arranged at the joint of the cross rod and the first adjusting rod and the second adjusting rod respectively; at least one telescopic supporting rod is connected between the first adjusting rod and the second adjusting rod, one end of the telescopic supporting rod is in sliding connection with the first adjusting rod, and the other end of the telescopic supporting rod is fixedly connected with the second adjusting rod.

3. The drop test machine according to claim 2, wherein two telescopic support rods are arranged, the two telescopic support rods are respectively located above and below the cross rod, and the two telescopic support rods are respectively close to two ends of the first adjusting rod; the first adjusting rod is sleeved with two sliding rings, and one end of the telescopic supporting rod is connected with the sliding rings.

4. The drop test machine of claim 2, wherein the telescoping support rod is a threaded telescoping rod.

5. The drop test machine of claim 1, wherein the tensioning device comprises a first gear and a second gear, the first gear and the second gear are meshed with each other, one end of one of the chains is connected with the end face of the first gear, and the other end of the chain is connected with the swinging arm; one end of the other chain is wound on the gear shaft of the second gear, and the other end of the other chain is connected with the rotating arm.

6. The drop test machine of claim 5, wherein the outer wall of the lifting slide is further provided with a rotary handle, and the rotary handle is connected with the gear shaft of the first gear or the second gear through the lifting slide.

7. The drop test machine of claim 1, wherein a maximum included angle between the swing arm and the rotating arm is 180 °.

8. The drop test machine of claim 1, wherein the support plate is provided with a plurality of positioning grooves, and the positioning grooves are bar-shaped or/and circular.

9. The drop test machine of claim 2, wherein the compression head is of a cylindrical structure, and a plurality of arc-shaped grooves are formed in the bottom of the cylindrical structure.

10. The drop test machine of claim 2, wherein the compression head is of a V-shaped configuration with a spring therebetween.