RU2523728C1 - Shock pendulum table for testing vehicle safety devices - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: table has platform which forms working surface for vehicle installation on it which surface is set on control height from impactor portion. One of butt-end portions of the platform is located above impactor portion between vertical support stands. Ends of vertical and tilted support stands which are at opposite side from the mentioned horizontal frame are equipped with means for their height adjustment. Articulated joints of pendulum with carrying frame and carrying platform, connections of carrying frame and platform are made collapsible. Carrying frame, platform, pendulum with its retraction device and variable mass weight are made with possibility of their transportation in truck body.

EFFECT: reduction of mounting and dismantling time, possibility of quick transportation of constructional elements and lowering requirements to test site which does not need mains delivery and preparation of basement.

3 cl, 2 dwg

Description

The invention relates to means for testing devices for shock loads and can be used to test protective devices, including bumpers, of a vehicle.

Known shock pendulum stand "PENDULUM IMPACT TEST RIG" (patent for invention US 6990845, G01N 3/48, G01N 3/00, publ. 06/03/2004), designed for emergency and shock tests of protective devices of the vehicle. This stand contains a supporting structure mounted on a horizontal base. The supporting structure consists of inclined racks and a crossbeam, on which a pendulum is suspended at one end. The pendulum is made in the form of a T-shaped beam. The pendulum has a drummer mounted on its opposite end from the crossbar. The drummer is configured to adjust its position in the horizontal and vertical plane, while providing the ability to change the center of the impact in a certain range. On the base between the inclined racks there is a latch with fastening for the tested protective devices of the vehicle. To provide various configurations of impact on the test object, the drummer is equipped with various nozzles. Also, a load of adjustable mass can be fixed on the pendulum to provide the required impact energy.

The disadvantage of this known technical solution is the lengthy process of preparation for testing, due to the need to remove the protective devices from the vehicle and secure them properly in the locking device.

The well-known stand "Bumper Pendulum" shock pendulum for testing the protective devices of the vehicle created by the company "Microsys" [see Microsys Company Directory - Electronic Resource. Resource access mode: www.micro-sys.com/resources/PDF/bumper_pendulum_june_2012.pdf - free] (see Appendix 1). This stand contains a pendulum and a supporting frame installed on the base, which is formed in the form of a concrete section of the workshop flooded with concrete. The supporting frame is formed by vertical and inclined racks, one of their ends fixed on the base, and a horizontal frame connected to the opposite ends of the vertical and inclined racks. A pendulum formed by four rods and a supporting plate is suspended inside the supporting frame. The rods at one end are pivotally connected to the aforementioned horizontal frame, and at the opposite ends, to the carrier plate, forming a parallelogram. The shock part and the load of variable mass are located on the carrier plate. The shock part is formed by a vertical support, rigidly fixed on one of the ends of the bearing plate, and a hammer, which is mounted on a vertical support with the ability to change its position on it. At the same time, the drummer has nozzles for carrying out various impact tests. The pendulum is equipped with a device for its removal from a stable position. In addition, the shock pendulum stand is equipped with a device for recording the speed of the pendulum's return to a stable position and a powerful power source.

The well-known shock pendulum stand for testing the protective devices of a vehicle is selected as a prototype, since it has the largest number of essential features that match the essential features of the claimed invention.

However, the prototype has significant disadvantages, namely:

- the difficulty of mounting and dismantling the stand due to the presence of non-separable connections of structural elements;

- the complexity of transportation due to the large dimensions of the components of the stand;

- high requirements for the place of testing, due to the need to install the stand in the workshop on a previously prepared basis and the need to bring power.

The objective of this invention is the creation of a new shock pendulum stand for testing the protective devices of a vehicle with the following technical result: reducing the time of installation and dismantling of the structure while ensuring the possibility of quick and convenient transportation of structural elements and reducing requirements for the test site, i.e. creation of a mobile, easily transportable and customizable stand.

The problem is solved due to the fact that:

- from the drummer’s side, a platform has been introduced that forms the working plane for installing a vehicle on it, which is set to a reference height from the shock part;

- one of the end parts of the platform is located under the shock part between the vertical support posts;

- the ends of the vertical and inclined support legs, which are located on the opposite side of the said horizontal frame, are equipped with means for controlling them in height;

- swivel joints of the pendulum with the supporting frame and the supporting plate, the joints of the supporting frame and the platform are made collapsible;

- the supporting frame, platform, pendulum with a device for its removal and cargo of variable mass are made with the possibility of transportation in the back of a cargo vehicle.

The essence of the claimed technical solution lies in the fact that the shock stand for testing the protective devices of the vehicle, containing the supporting frame, made in the form of a spatial truss and formed by vertical and inclined support racks, with their ends fixed with a horizontal frame, a pendulum suspended using a parallelogram and formed by a supporting plate and four suspension rods pivotally connected at one end to the aforementioned horizontal frame, and opposite - to the supporting plate and, moreover, a load of variable mass and a shock part formed from a striker and a vertical support rigidly fixed to the end of the carrier plate from the side of the vertical support racks are placed on the carrier plate, the drummer being mounted on it with the possibility of changing its position, the pendulum is equipped with a device for its removal from a stable position and a device for recording the speed of its movement, according to the present invention, a platform is formed from the side of the hammer, forming a working plane for installing vehicles on it a, which is set to a reference height from the shock part, with one of the end parts of the platform located under the shock part between the vertical support legs and the ends of the vertical and inclined support legs, which are located on the opposite side of the said horizontal frame, are equipped with height adjustment means , swivel joints of the pendulum with the supporting frame and the supporting plate, the joints of the supporting frame and the platform are collapsible, and the supporting frame, platform, pendulum with its device the tap and the load of variable weight are made with the possibility of transportation in the back of a cargo vehicle.

A development option for the main technical solution is possible, consisting in the fact that the platform is folding with the possibility of rigid fixation of its position in a horizontal plane at the test site.

There is another option for the development of the main technical solution, which consists in the fact that the platform has a means of changing its position in space in height and in a horizontal plane.

The claimed technical solution with all its essential features allows to reduce the time of installation and dismantling due to the presence of a large number of collapsible joints of structural elements. And at the same time, provide the ability to quickly transport structural elements due to the fact that the components are disassembled are placed in the truck body. Also, this technical solution allows to reduce the requirements for the place of testing, for which there is no need for a power supply and special preparation of the base.

Thus, this technical solution for a specialist of average qualification does not logically follow from the prior art. Therefore, the proposed device has an inventive step, because The technical result of the claimed technical solution is achieved by a new interconnection of a combination of essential features, both newly introduced and well-known.

The essence of the proposed solutions and the possibility of its practical implementation is illustrated by the description and drawings below.

Figure 1 shows the shock pendulum stand (in isometry), where:

1 - a vertical support rack;

2 - an inclined support rack;

3 - horizontal frame;

4 - carrier plate;

5 - suspension bar;

6 - articulated joint;

7 - load of variable mass;

8 - drummer;

9 - vertical support;

10 - device for the removal of the pendulum;

11 - speed recording device;

12 is a platform.

Figure 2 presents the shock pendulum stand (side view), where:

13 - vehicle;

14 - means for adjusting the position of the stand in height;

15 - protective device;

16 - means for regulating the position of the platform in height.

Stand shock pendulum (Figure 1) contains a supporting frame and a pendulum.

The supporting frame, made in the form of a spatial truss and formed by vertical support pillars 1 and inclined support pillars 2, one of their ends fixed with a horizontal frame 3.

The pendulum is suspended using a parallelogram and is formed by a supporting plate 4 and four suspension rods 5, which are pivotally connected 6 at one end with the aforementioned horizontal frame 3, and the opposite - with the supporting plate 4.

The shock part and a load of variable weight 7 are placed on the carrier plate 4. The shock part is formed of a striker 8 and a vertical support 9, rigidly fixed to the end of the carrier plate 4 from the side of the vertical support posts 1, and the striker 8 is fixed on it with the possibility of changing its position.

The pendulum is equipped with a device for its removal 10 from a stable position and a device for recording the speed of its movement 11.

From the side of the drummer 8 is a platform 12 (Figure 2), forming a working plane for mounting a vehicle 13 on it, which is set to a reference height from the shock part.

One of the end parts of the platform 12 is located under the shock part, in the projection zone of the carrier plate 4, forming a conditional zone of "overlap" of the platform 12 and the carrier plate 4, between the vertical support posts 1. The ends of the vertical support posts 1 and the inclined support posts 2, which are on the opposite side of the aforementioned horizontal frame 3, are equipped with means for regulating them in height 14.

Swivel joints 6 of the pendulum with the supporting frame and the supporting plate 4, the connections of the supporting frame and the platform 12 are made collapsible.

The supporting frame, platform 12, a pendulum with a device for its removal 10 and a load of variable mass 7 are made with the possibility of transportation in the back of a cargo vehicle.

The platform 12 can be made folding with the possibility of rigid fixation of its position in the horizontal plane at the test site. The platform 12 may have a means of changing its position in space in height and in the horizontal plane 16.

The carrier plate 4 and the platform 12 can be made, for example, from a sheet of steel. The vertical support posts 1, the inclined support posts 2, the horizontal frame 3 and the suspension rods 5 can be made, for example, from hollow or shaped pipes. The shock part must have a rigid structure, while the surface of the hammer 8 can be made, for example, of hardened steel. The load of variable mass 7 can be performed, for example, from a set of loads of different masses. And the speed recording device 11 may be, for example, a tachometer.

Tests are carried out on this stand as follows. The test protective devices 15 of the vehicle 13 are mounted on the platform 12. Depending on the longitudinal impact test or the impact on the corners, the vehicle 13 is aligned so that the point located between its corners touches the hammer 8 without causing it to move, or align so that the angle of the vehicle 13 touches the drummer 8. The drummer 8 is set to the required height from the platform 12. The load of variable mass 7 is installed on the base plate 4 so that its mass is equal to m sse test vehicle 13. Then pendulum removal device 10 removes the pendulum from the protective device 15 of the vehicle 13 and fixes it in a deflected position. After that, the carrier plate 4 is disconnected from the device of the pendulum 10 and the striker 8 strikes the protective device 15 of the vehicle 13. In this case, the speed registration device 11 displays the speed at which the strike was made.

Thus, the technical result of the claimed technical solution is achieved, namely, reducing the time of installation and dismantling of the structure while ensuring the possibility of fast transportation of structural elements, as well as reducing the requirements for the place of testing.

Claims (3)

1. The shock pendulum stand for testing the protective devices of a vehicle, comprising a supporting frame made in the form of a spatial truss and formed by vertical and inclined support racks fixed at one end with a horizontal frame, a pendulum suspended by means of a parallelogram and formed by a supporting plate and four suspended rods pivotally connected at one end to the aforementioned horizontal frame, and opposite to the carrier plate, and on the carrier plate placed load per the ground mass and the shock part, formed from a striker and a vertical support, rigidly fixed to the end of the carrier plate from the side of the vertical support struts, the striker being mounted on it with the possibility of changing its position, the pendulum is equipped with a device for its removal from a stable position and a device for recording its movement speed characterized in that a platform is introduced from the drummer side, forming a working plane for mounting a vehicle on it, which is set to a reference height from the shock part and, while one of the end parts of the platform is located under the shock part between the vertical support racks, and the ends of the vertical and inclined support racks, which are located on the opposite side of the said horizontal frame, are equipped with height control means, the pendulum swivels with the supporting frame and by a bearing plate, the joints of the bearing frame and the platform are collapsible, and the bearing frame, platform, pendulum with a device for its removal and a load of variable weight are made with the possibility of them transportation in the back of a cargo vehicle. 2. The shock pendulum stand for testing the protective devices of a vehicle according to claim 1, characterized in that the platform is folding with the possibility of rigid fixation of its position in a horizontal plane at the test site. 3. The shock pendulum stand for testing the protective devices of a vehicle according to claim 1, characterized in that the platform has a means of changing its position in space in height and in a horizontal plane.

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