CN213779438U

CN213779438U - Auxiliary test frame for drop test

Info

Publication number: CN213779438U
Application number: CN202022057168.XU
Authority: CN
Inventors: 杨翼宾
Original assignee: Chengdu Siyuan Smart Aviation Technology Co Ltd
Current assignee: Chengdu Siyuan Smart Aviation Technology Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-07-23
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a falling test auxiliary test frame, which comprises a test support frame; one side of the test support frame is hinged with one end of the turning plate, the other end of the turning plate is a suspension end and is placed on the bottom plate, the bottom plate is detachably or movably connected with the test support frame, and the movable connecting finger bottom plate can move from a state of supporting the turning plate to a state of suspending the turning plate. The utility model relates to a drop test field. The utility model has the characteristics of with low costs, the transportation is convenient, and the equipment is simple, easy operation, and the security is higher, can effectively protect the falling test thing, is a wider falling test auxiliary test frame of application scope.

Description

Auxiliary test frame for drop test

Technical Field

The utility model relates to a drop test technical field, concretely relates to drop test auxiliary test frame.

Background

At present, mechanical equipment or an anti-falling device for high-altitude operation needs to be subjected to falling tests in the processes of production completion, installation completion and periodic maintenance. The traditional drop test is generally carried out through simple low-height manual operation or a customized drop test device, and the prior art scheme carries out the test through manual operation, so that the defect of damage to operators or equipment is caused due to improper operation (for example, the anti-falling safety device does not play a role or has a small role due to aging and the like, and damages to the equipment or a steel wire rope during emergency stop) during the drop test; and drop test is carried out through the customization test device that falls, because current customization test device equipment structure is complicated, has the defect that test device purchase cost is big, the cost of transportation is high and the installation is difficult again.

Disclosure of Invention

The utility model aims at providing an easy operation, the higher drop test auxiliary test frame of security.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: comprises a test support frame; one side of the test support frame is hinged with one end of the turning plate, the other end of the turning plate is a suspension end and is placed on the bottom plate, the bottom plate is detachably or movably connected with the test support frame, and the movable connecting finger bottom plate can move from a state of supporting the turning plate to a state of suspending the turning plate.

It is preferable that: when the bottom plate is movably connected with the test support frame, one end of the bottom plate is hinged with the test support frame through a second rotating shaft; the other end of the bottom plate is fixed on the bottom plate bracket through a fixing pin.

It is preferable that: the bottom plate is an inverted L-shaped plate bent towards the turning plate, the second rotating shaft is located near a corner of the bottom plate, and the fixing pin is located at the lower end of the long edge of the bottom plate.

It is preferable that: when the bottom plate is detachably connected with the test support frame, the bottom plate is fixed on the test support frame through a fixing pin.

It is preferable that: a baffle is arranged below the turning plate and the bottom plate and connected with the test support frame, and a buffer device is arranged on the baffle; the position of the baffle needs to satisfy: the barrier is in the path of the free fall of the falling test object.

It is preferable that: the buffer device comprises a spring buffer group and a rubber buffer cushion, the lower end of the spring buffer group is fixed on the baffle, and the upper end of the spring buffer group is connected with the bottom of the rubber buffer cushion.

It is preferable that: the test support frame can enable the baffle plates to be fixedly connected at different heights;

or;

the test support frame can enable the baffle plates to be fixedly connected at different heights; when the falling test object is provided with the falling-prevention automatic brake system, the connecting height of the baffle and the test support frame is adjusted, so that the distance between the horizontal position of the turning plate and the rubber cushion pad is 1.2 times of the brake calibration distance of the falling test.

It is preferable that: the test support frame comprises a turning plate support and a bottom plate support, and the turning plate support is connected with the lower part of the bottom plate support through a bottom support; an inclined bracket is arranged above the bottom bracket; the upper part of the inclined bracket is connected with the bottom of the baffle; the turning plate support, the bottom support, the inclined support and the baffle are enclosed to form a frame structure.

It is preferable that: when the turning plate is placed on the bottom plate, the turning plate is in a horizontal state.

It is preferable that: the test support frame is provided with a vertical downward length scale mark which takes the horizontal position of the turnover plate as an initial position.

The utility model has the beneficial technical effects that: in the technical scheme of the utility model, because the bottom plate is detachably or movably connected with the test support frame, the turning plate is in a suspended state only by detaching or moving the bottom plate when starting the test, preferably, the fixing pin is adopted to fix the position of the bottom plate to pull out the fixing pin, even if the bottom plate loses the supporting function on the turning plate, the turning plate is opened under the action of gravity, and the falling test object starts the falling test; the fixed pin can be pulled out at a distance by an operator through simple measures such as a rope and the like to start the test, so that the safety of the operator is effectively protected.

Therefore, compared with the prior art, the auxiliary falling test rack is simple to operate and higher in safety.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1, one side of the test support frame is hinged to one end of a turning plate 2, the other end of the turning plate 2 is a suspension end and is placed on a bottom plate 8, the bottom plate 8 is detachably or movably connected with the test support frame, and the movable connecting finger bottom plate 8 can move from a state of supporting the turning plate 2 to a state of suspending the turning plate 2. One side of the test support frame is hinged with the turning plate 2, and the hinging comprises connecting modes such as rotating shaft connection, steel cable connection and the like. The bottom plate 8 can be dismantled with experimental support frame and be connected including the connected mode that the bolt is fixed, the screw rod is fixed etc. can dismantle bottom plate 8 from experimental support frame. The movable connection of the bottom plate 8 and the test support frame comprises a connection mode that the bottom plate 8 can move from a state of supporting the turning plate 2 to a suspended state of the turning plate 2 through chute connection, rotating shaft connection and the like. An operator can install or move the bottom plate 8 to enable the falling test object to be placed on the turning plate 2; the falling test object is dropped by removing or moving the bottom plate 8.

When the bottom plate 8 is movably connected with the test support frame, the bottom plate 8 is hinged with the test support frame through a second rotating shaft 9. The bottom plate 8 is fixed on a bottom plate bracket 12 through a fixing pin 10; the bottom plate 8 is an inverted L-shaped plate bent towards the turning plate 2, the second rotating shaft 9 is located near a corner of the bottom plate 8, and the fixing pin 10 is located at the lower end of the long edge of the bottom plate 8.

When the bottom plate 8 is detachably connected with the test support frame, the bottom plate 8 is fixed on the test support frame through a fixing pin 10.

A baffle 5 is arranged below the turning plate 2 and the bottom plate 8, the baffle 5 is connected with the test support frame, and a buffer device is arranged on the baffle 5; the position of the baffle 5 is required to satisfy: the barrier 5 is in the path of the free fall of the falling test object. The baffle 5 is positioned on a free falling path of a falling test object, and mainly means that the falling test object can fall on the baffle 5 in the falling test process. The buffer device comprises a spring buffer group 6 and a rubber buffer cushion 7, the lower end of the spring buffer group 6 is fixed on the baffle 5, and the upper end of the spring buffer group is connected with the bottom of the rubber buffer cushion 7. The spring buffer group 6 mainly refers to a plane combination formed by vertically placing and arranging a plurality of springs.

The test support frame can ensure that the baffle 5 is fixedly connected at different heights; when the falling test object is provided with an anti-falling automatic brake system, the connecting height of the baffle 5 and the test support frame is adjusted, so that the distance between the horizontal position of the turning plate 2 and the rubber cushion pad 7 is 1.2 times of the brake calibration distance of the falling test. The anti-falling automatic braking system is a device which is arranged on an object or a device and can automatically identify the weightlessness state and emergently brake to avoid continuous falling; the test brake calibration distance refers to a standard distance for a falling test object of the falling-proof automatic brake system to fall when the falling-proof automatic brake system successfully acts and braking is completed. The baffle plate support 1 and the bottom plate support 12 are both provided with sliding grooves capable of enabling the baffle plates 5 to slide up and down, the sliding grooves are provided with a plurality of groups of jacks with different heights, the connecting positions of the baffle plates 5 and the sliding grooves are provided with bolts, the bolts fix the baffle plates 5 on different heights through the jacks, the connecting mode of the test support frame and the baffle plates 5 further comprises a detachable bolt connecting mode and the like, and the installation height of the baffle plates 5 can be adjusted under the condition that the baffle plates are needed.

The test support frame comprises a turning plate support 1 and a bottom plate support 12, and the turning plate support 1 is connected with the lower part of the bottom plate support 12 through a bottom support 3; an inclined bracket 4 is arranged above the bottom bracket 3; the upper part of the inclined bracket 4 is connected with the bottom of the baffle 5; the turning plate support 1, the bottom plate support 12, the bottom support 3, the inclined support 4 and the baffle 5 are enclosed to form a frame structure. The test support frame can select the material composition that weight is lighter and intensity is higher such as cavity steel pipe, and test support frame and bottom support 3, down tube 4, baffle 5 are all fixed through simple connection mode of dismantling, make the utility model discloses be convenient for install, dismantle, transport. When the turning plate 2 is placed on the bottom plate 8, the turning plate 2 is in a horizontal state. The test support frame is provided with a vertical downward length scale mark which takes the horizontal position of the turning plate 2 as an initial position. The turning plate 2 is horizontally in a horizontal state and marked by length scales, so that the test data measured by an operator can be more accurate and convenient. And a roller braking device are arranged below the test support frame. The roller and the roller braking device can enable an operator to conveniently move the auxiliary test frame for the falling test and fix the roller to prevent movement. The fixing pin 10 is connected with a control rope. Because the structures of all the components of the auxiliary test frame for the falling test are connected through a stable and simple structure, the utility model has simple disassembly and assembly, convenient transportation and stable structure after the assembly is finished; because there is the distance scale sign on turning over the board support and the bottom plate support, so operating personnel measures experimental braking distance more conveniently.

When the device is used, firstly, an operator moves the auxiliary falling test frame to the position right below a falling test object and fixes the auxiliary falling test frame, the bottom plate 8 and the bottom plate bracket 12 are firmly fixed by the fixing pin 10, and the turnover plate 2 is confirmed to be placed on the bottom plate 8 and located at the horizontal position. Then, the operator adjusts the baffle 5 to a proper height according to the falling test object condition; when the falling test object is provided with an anti-falling automatic brake system, the connecting height of the baffle 5 and the test support frame is adjusted, so that the distance between the horizontal position of the turning plate 2 and the rubber cushion pad 7 is 1.2 times of the brake calibration distance of the falling test. Because experimental support frame can make baffle 5 connect fixedly at different altitudes, be connected with rubber buffer pad 7 through spring buffer group 6 on baffle 5 to turn over the distance between board 5 and the rubber buffer pad 7 and be 1.2 times the experimental brake calibration distance that falls, so even falling test thing falls and surpasss the brake calibration distance when falling test, also can continue falling with rubber buffer pad 7 contact before accelerating, effectively slow down falling speed, and can test to the equipment of different brake calibration distances.

Then, the operator places the falling test object on the turning plate 2, and confirms that no other factor than the turning plate 2 affects its free fall. Finally, after confirming that no non-test person exists around the falling test frame, the operator is far away from the falling test frame and removes the fixing pin 10 through the control rope, the turning plate 2 is opened downwards, and the falling test object is free to fall off after losing the support.

When the falling test object is provided with the anti-falling automatic brake system, if the falling test object is stopped before touching the rubber buffer 7 during falling, the brake distance can be read and recorded from the scales of the turning plate bracket 1 and the bottom plate bracket 12, and compared with the brake calibration distance, whether the falling test object is in the brake calibration distance is judged. If the data is within the brake calibration distance, the anti-falling test is passed; if the brake calibration distance is exceeded, the test fails, and the automatic brake system of the falling test object needs to be adjusted. If the falling test object touches the rubber buffer 7 when falling, the failure of the anti-falling test can be judged, and the automatic braking system of the falling test object needs to be adjusted; due to the protection effect of the buffer device, the falling test object is less impacted and is not easy to damage.

Claims

1. The utility model provides a supplementary test stand of drop test which characterized in that: comprises a test support frame; one side of the test support frame is hinged with one end of the turning plate (2), the other end of the turning plate (2) is a suspension end and is placed on the bottom plate (8), the bottom plate (8) is detachably or movably connected with the test support frame, and the movable connecting finger bottom plate (8) can move to the suspended state of the turning plate (2) from the state of supporting the turning plate (2).

2. A drop test auxiliary test stand according to claim 1, wherein: when the bottom plate (8) is movably connected with the test support frame, one end of the bottom plate (8) is hinged with the test support frame through a second rotating shaft (9); the other end of the bottom plate (8) is fixed on a bottom plate bracket (12) through a fixing pin (10).

3. A drop test auxiliary test stand according to claim 2, wherein: the bottom plate (8) is an inverted L-shaped plate bending towards the turning plate (2), the second rotating shaft (9) is located near the corner of the bottom plate (8), and the fixing pin (10) is located at the lower end of the long edge of the bottom plate (8).

4. A drop test auxiliary test stand according to claim 1, wherein: when the bottom plate (8) is detachably connected with the test support frame, the bottom plate (8) is fixed on the test support frame through a fixing pin (10).

5. A drop test auxiliary test stand according to claim 1, wherein: a baffle (5) is arranged below the turning plate (2) and the bottom plate (8), the baffle (5) is connected with the test support frame, and a buffer device is arranged on the baffle (5); the position of the baffle (5) needs to satisfy: the baffle (5) is in the path of the free fall of the falling test object.

6. A drop test auxiliary test stand according to claim 5, wherein: the buffer device comprises a spring buffer group (6) and a rubber buffer pad (7), the lower end of the spring buffer group (6) is fixed on the baffle (5), and the upper end of the spring buffer group is connected with the bottom of the rubber buffer pad (7).

7. A drop test auxiliary test stand according to claim 5, wherein: the test support frame can enable the baffle (5) to be fixedly connected at different heights;

or;

when the falling test object is provided with an anti-falling automatic brake system, the connecting height of the baffle (5) and the test support frame is adjusted, so that the distance between the horizontal position of the turning plate (2) and the rubber buffer (7) is 1.2 times of the calibration distance of the falling test brake.

8. A drop test auxiliary test stand according to claim 5, wherein: the test support frame comprises a turning plate support (1) and a bottom plate support (12), and the lower parts of the turning plate support (1) and the bottom plate support (12) are connected through a bottom support (3); an inclined bracket (4) is arranged above the bottom bracket (3); the upper part of the inclined bracket (4) is connected with the bottom of the baffle (5); the plate turning support (1), the bottom plate support (12), the bottom support (3), the inclined support (4) and the baffle (5) are enclosed to form a frame structure.

9. A drop test auxiliary test stand according to claim 1, wherein: when the turning plate (2) is placed on the bottom plate (8), the turning plate (2) is in a horizontal state.

10. A drop test auxiliary test stand according to claim 9, wherein: the test support frame is provided with a vertical downward length scale mark which takes the horizontal position of the turning plate (2) as an initial position.