CN216847239U - Door extrusion simulation testing arrangement - Google Patents

Abstract

The utility model relates to the technical field related to rail transit vehicle equipment, in particular to a vehicle door extrusion simulation testing device which comprises a base, a bearing plate, a force sensor and a displacement sensor, the bearing plate is fixedly assembled on the base, the tested piece is assembled on the bearing plate in a sliding mode through the adapter piece, one stressed part of the tested piece is abutted against the base, the force sensor moves towards the other stressed part of the tested piece under the driving of the driving assembly and enables the stressed part to generate deformation, meanwhile, the joint of the two stress parts slides by means of the adapter, the displacement sensor is arranged on the base, the displacement sensor carries out displacement detection action on the force sensor, and the technical problem that in the prior art, a testing device for simulating rail transit vehicle door clamping objects is poor in precision is solved.

Description

Door extrusion simulation testing arrangement

Technical Field

The utility model belongs to the technical field of the relevant technique of urban rail transit equipment and specifically relates to a door extrusion simulation testing arrangement is related to.

Background

At present, urban rail transit in China is rapidly developed, particularly in some large-scale cities, subways in the urban rail transit are an indispensable travel mode, and urban people can travel more and more conveniently. The door is used as a passage for passengers to get on and off the vehicle, the normal operation of the vehicle and the safety of the passengers are concerned, when the door of the rail transit vehicle is closed, the door of the rail transit vehicle is easy to clamp the passengers due to crowding of the passengers and negligence of the passengers, so that the clamping force when the door of the rail transit vehicle is closed must be in a certain range, namely, the material for manufacturing the door needs to generate corresponding deformation under a certain force; in addition, the force testing module shakes during movement, which also results in poor testing accuracy; the force testing module and the simulation member are in rigid contact with each other, so that the force testing module and the testing device are damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the poor technical problem of testing arrangement precision of simulation rail transit vehicle door centre gripping article among the prior art, the utility model provides a door extrusion simulation testing arrangement has solved above-mentioned technical problem. The technical scheme of the utility model as follows:

a door squeeze simulation test device for assisting in simulating a force with which an object is clamped during movement of a door, comprising: a base; the bearing plate is fixedly assembled on the base, the tested piece is assembled on the bearing plate in a sliding mode through the adapter, and one stressed part of the tested piece abuts against the base; the force sensor moves towards the other stress part of the tested piece under the driving of the driving assembly and enables the stress part to deform, meanwhile, the joint of the two stress parts slides by means of the adapter, and the displacement sensor is arranged on the base and is used for carrying out displacement detection action.

According to the utility model discloses an embodiment, the base is formed with the limiting plate, it supports when testing to be kept away from on the survey piece force sensor's atress portion supports and leans on the limiting plate, the limiting plate with force sensor is located same straight line along horizontal direction's axis.

According to an embodiment of the utility model, the width L2 more than or equal to of the spacing portion of limiting plate the width L1 of atress portion, the width L3 more than or equal to of force sensor's drive division the width L1 of atress portion.

According to the utility model discloses an embodiment, spacing portion with all be provided with the protection piece on the drive division, the protection piece makes the atress portion with spacing portion the drive division forms the flexible contact.

According to an embodiment of the present invention, the drive assembly comprises a drive shaft, the drive shaft is connected with a bearing block by means of a flat key, the bearing block is fixedly connected with the force sensor; the worm wheel is connected with the driving shaft through a flat key and is arranged inside the bearing block; the two ends of the worm are fixedly connected with the base through a locking piece, the worm penetrates through the bearing block, and the driving shaft drives the bearing block to slide along the worm through the worm wheel.

According to the utility model discloses an embodiment, the worm along force sensor slip direction is formed with the spout, be formed with on the carrier block with the spacing arch that the spout corresponds, spacing arch stretches into the spout. According to the utility model discloses an embodiment, be formed with the spacing groove on the supporting beam of base, carrier block and connecting plate fixed connection, be formed with on the connecting plate with the spacing portion that the spacing groove corresponds, spacing portion stretches into the spacing groove, so that the supporting beam is right the carrier block carries out spacing action.

According to the utility model discloses an embodiment, the support of base is erected and is formed with the locking groove along vertical direction on the roof beam, two it is relative to support to erect the roof beam the axis symmetry of locking piece sets up, be formed with on the locking piece with two support erect on the roof beam the locking hole that the locking groove corresponds, firm passes the locking hole is stretched into the locking groove, it is right to carry out the locking action to the worm.

According to the utility model discloses an embodiment, displacement sensor with the carrier block is perpendicular the projection of carrier block gliding plane overlaps, so that displacement sensor is right force transducer carries out the displacement detection action.

According to the utility model discloses an embodiment, the adaptor with loading board parallel arrangement, the tip of adaptor is formed with at least one gyro wheel, the adaptor with the help of the gyro wheel is relative the loading board carries out the slip action.

Based on the technical scheme, the utility model discloses the technological effect that can realize does:

1. the vehicle door extrusion simulation test device comprises a base, a bearing plate, a force sensor and a displacement sensor, wherein the bearing plate is fixedly assembled on the base, a tested piece is assembled on the bearing plate in a sliding mode through an adapter, one stress part of the tested piece is abutted against the base, the force sensor moves towards the other stress part of the tested piece under the driving of a driving assembly to enable the stress part to deform, meanwhile, the joint of the two stress parts slides through the adapter, the displacement sensor conducts displacement detection action on the force sensor, compared with the prior art, one end of a simulation piece simulating a vehicle door is fixed, the test end of the simulation piece moves relative to the fixed end after being stressed, the mode cannot simulate that the vehicle door clamps an object during moving, and the test precision is poor, the tested piece is placed on the bearing plate through the adapter, so that the tested piece is tested, the joint of the two stress parts of the tested piece also performs sliding action, so that the clamping force of the vehicle door for clamping the object in the moving process can be simulated, and the precision of the vehicle door extrusion simulation testing device is ensured.

2. The base of this application is formed with the limiting plate, and the atress portion of keeping away from force sensor on the piece to be surveyed leans on the limiting plate when the test, and limiting plate and force sensor lie in same straight line along the axis of horizontal direction, have avoided the power direction that two atress portions received not on a straight line and wrench movement to the simulation has been guaranteed to be surveyed the measuring accuracy of piece.

3. The utility model provides a worm is formed with the spout along force transducer slip direction, be formed with the spacing arch that corresponds with the spout on the carrier block, spacing arch stretches into the spout, thereby make the worm carry out spacing action to carrier block and force transducer, be formed with the spacing groove on the supporting beam of base, carrier block and connecting plate fixed connection, be formed with the spacing portion that corresponds with the spacing groove on the connecting plate, spacing portion stretches into the spacing groove, so that supporting beam carries out spacing action to the carrier block, carry out spacing action to the carrier block through two upper and lower directions, the carrier block has been prevented to rock in sliding, thereby the precision of test has been guaranteed.

4. The utility model provides a door extrusion simulation testing arrangement still includes displacement sensor, and displacement sensor and bearing block overlap in the projection on the gliding plane of perpendicular bearing block to make displacement sensor carry out the displacement detection action to force transducer, with the deformation volume that the simulation is surveyed the piece and is produced under the effect of force.

Drawings

FIG. 1 is a schematic view of a door squeeze simulation test apparatus;

FIG. 2 is a schematic structural view of another perspective of the door squeeze simulation test device;

FIG. 3 is a schematic view of a partial structure of a door squeeze simulation test device;

FIG. 4 is a schematic view of the mating structure of the drive assembly and the base;

FIG. 5 is a schematic view of the engagement of the worm and the base;

FIG. 6 is a schematic view of a matching structure of the force sensor, the detected piece and the limiting plate;

in the figure:

1-base, 11-limiting plate; 12-a support bar; 13-supporting vertical beams; 131-a locking groove; 14-a supporting beam; 141-a limit groove; 2-a bearing plate; 3-a force sensor; 4-a displacement sensor; 5-an adapter; 51-a roller; 6-a drive assembly; 61-a drive shaft; 611-driving wheels; 62-a worm; 621-a chute; 622-lock; 63-a carrier block; 64-a connecting plate; 641-limit projection; 7-a tested piece; 71-force-bearing part.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 6, the vehicle door squeezing simulation testing device of the present embodiment is used for assisting in simulating a force of clamping an object during movement of a vehicle door, and includes a base 1, a bearing plate 2, a force sensor 3, and a displacement sensor 4, the bearing plate 2 is fixedly mounted on the base 1, a tested piece 7 is slidably mounted on the bearing plate 2 through an adaptor 5, one stressed portion 71 of the tested piece 7 abuts against the base 1, the force sensor 3 moves toward the other stressed portion 71 of the tested piece 7 under the driving of a driving assembly 6 and deforms the stressed portion 71, a connection portion of the two stressed portions 71 slides through the adaptor 5, the displacement sensor 4 is disposed on the base 1, and the displacement sensor 4 performs a displacement detection action on the force sensor 3.

It can be known from the above that, in the present embodiment, the tested piece 7 is placed on the bearing plate 2 by the aid of the adaptor 5, the tested piece 7 is set as a vehicle door simulation tester in the present embodiment, when the vehicle door simulation tester is used for testing, the stress portion 71 of the vehicle door simulation tester is stressed and then slides, and the joint of the two stress portions 71 of the vehicle door simulation tester also performs a sliding action, so that a situation that a vehicle door clamps a clamping force of an object during movement can be simulated, and the precision of the vehicle door extrusion simulation testing device is ensured.

The base 1 of this embodiment performs a limiting action on the detected piece 7, specifically, a limiting plate 11 is arranged on the base 1 along the horizontal direction, the detected piece 7 is placed on the loading plate 2, and the stressed portion 71 of the detected piece 7, which is far away from the force sensor 3, abuts against the limiting plate 11 during testing, when an external force acts on another stressed portion 71 of the detected piece 7, the stressed portion 71 moves towards the limiting plate 11, and the stressed portion 71 abutting against the limiting plate 11 is limited and kept still.

Preferably, the axes of the limiting plate 11 and the force sensor 3 in the horizontal direction of the embodiment are located on the same straight line, the width L2 of the limiting portion of the limiting plate 11 is greater than or equal to the width L1 of the force-receiving portion 71, and the width L3 of the driving portion of the force sensor 3 is greater than or equal to the width L1 of the force-receiving portion 71, so that the force directions received by the two force-receiving portions 71 are prevented from twisting on a straight line, and the testing accuracy of the tested piece 7 is ensured.

Further, the limiting portion and the driving portion of the present embodiment are both provided with a protection element, and the protection element is made of a soft material, so that the protection element can make the force receiving portion 71 and the limiting portion and the driving portion form a flexible contact, and the force sensor 3, the force receiving portion 71 and the limiting plate 11 are prevented from being damaged due to rigid contact.

The base 1 of this embodiment bears the weight of the action to loading board 2, specifically, the interval is provided with two bracing pieces 12 on the base 1, and two bracing pieces 12 parallel arrangement just are located the horizontal plane, and loading board 2 accessible screw fixation assembles on bracing piece 12.

Further, the piece 7 to be measured of this embodiment can slide on the loading board 2, specifically, be provided with adaptor 5 between loading board 2 and the piece 7 to be measured, adaptor 5 and 7 to be measured fixed connection, adaptor 5 and loading board 2 parallel arrangement, the tip of adaptor 5 is formed with at least one gyro wheel 51, gyro wheel 51 sets up to four in this embodiment, and under the effect of external force, the piece 7 to be measured and adaptor 5 carry out the sliding motion with the help of gyro wheel 51 relative loading board 2.

The driving assembly 6 of the present embodiment provides the acting force to drive the force sensor 3 to perform the reciprocating motion, specifically, the driving assembly 6 includes a driving shaft 61, a worm wheel and a worm 62, two ends of the worm 62 are fixedly connected with the base 1 by a locking member 622, the worm 62 is arranged on a bearing block 63 in a penetrating manner, the worm wheel is arranged in a receiving space inside the bearing block 63, the driving shaft 61 is connected with the bearing block 63 by a flat key, the bearing block 63 is fixedly connected with the force sensor 3, the driving shaft 61 is connected with the worm wheel by a flat key, one end of the driving shaft 61 is provided with a driving wheel 611, an external force acts on the driving wheel 611, so that the driving shaft 61 drives the bearing block 63 to slide along the worm 62 by the worm wheel, the tested piece 7 is pressed by different degrees, thereby multiple sets of force and displacement are tested, the rigidity of the tested piece 7 can be obtained by linear fitting, and finally the data is compared with the industrial standard specification, to determine whether the stiffness of the tested piece 7 is within the range specified by the industry standard.

Preferably, one end of the driving shaft 61 of the present embodiment is provided with a motor and a belt transmission assembly, so that the speed and the stroke of the force sensor 3 pressing the force receiving portion 71 can be precisely controlled by the number of revolutions of the motor, thereby more truly simulating the real door motion.

The worm 62 and the base 1 of this embodiment can be dismantled and be connected, specifically, be formed with two locking holes on the locking piece 622 at worm 62 tip, be formed with locking groove 131 along vertical direction on the support vertical beam 13 of base 1, two support vertical beam 13 and set up along the axis symmetry of locking piece 622, locking hole and locking groove 131 correspond the setting, the firm piece passes the locking hole and stretches into locking groove 131 to carry out the locking action to worm 62, can simplify door extrusion simulation testing arrangement's structure through setting up locking groove 131 at support vertical beam 13.

Preferably, the worm 62 of the present embodiment limits rotation of the fast-loaded sliding, and specifically, the worm 62 is formed with a sliding slot 621 along the sliding direction of the force sensor 3, and the bearing block 63 is formed with a limiting protrusion corresponding to the sliding slot 621, and the limiting protrusion extends into the sliding slot 621, so that the bearing block 63 does not unnecessarily deflect during sliding.

Further, the bearing block 63 of the present embodiment is limited by the base 1 from the upper side through the connection plate 64, specifically, one side of the bearing block 63 is fixedly connected to the connection plate 64, the connection plate 64 is formed with a limiting protrusion 641, the support beam 14 of the base 1 is formed with a limiting groove 141 corresponding to the limiting protrusion 641, the cross section of the limiting groove 141 of the present embodiment is T-shaped, and the limiting protrusion 641 extends into the limiting groove 141, so that the support beam 14 is limited by the bearing block 63 of the connection plate 64, and the bearing block 63 is prevented from being unnecessarily deflected during sliding.

The bearing block 63 and the displacement sensor 4 of the present embodiment overlap with each other in projection on the plane where the vertical bearing block 63 slides, so that the displacement sensor 4 can accurately detect the displacement of the force-receiving portion 71 of the tested object 7 under the action of the force sensor 3,

the inside stressometer that is provided with of the measured piece 7 of this embodiment, when atress portion 71 produced deformation, the stressometer will produce voltage variation, and the stressometer passes through the bluetooth and sends data transfer to outside computer, still receives force sensor 3 on the computer and measures the power value, and the computer can record the voltage value that atress portion 71 atress back produced in the position of difference and the power value that force sensor 3 measured like this, then accessible linear fitting obtains the conversion coefficient of voltage and power to make the accurate measurement extrusion force of measured piece.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. A door extrusion simulation test device, characterized by comprising:

a base (1);

the bearing plate (2) is fixedly assembled on the base (1), the measured piece (7) is assembled on the bearing plate (2) in a sliding mode through the adapter (5), and one stress part (71) of the measured piece (7) abuts against the base (1);

the force sensor (3) moves towards the other stress part (71) of the tested piece (7) under the driving of the driving assembly (6) and enables the stress part (71) to deform, and meanwhile, the joint of the two stress parts (71) slides by means of the adapter piece (5);

the displacement sensor (4), displacement sensor (4) set up on base (1), displacement sensor (4) are to force sensor (3) carry out the displacement detection action.

2. The vehicle door extrusion simulation test device according to claim 1, wherein the base (1) is formed with a limit plate (11), a force receiving portion (71) of the tested piece (7) far away from the force sensor (3) abuts against the limit plate (11) during testing, and the axis of the limit plate (11) and the force sensor (3) along the horizontal direction are located on the same straight line.

3. The vehicle door extrusion simulation test device according to claim 2, wherein a width L2 of the stopper portion of the stopper plate (11) is equal to or greater than a width L1 of the force receiving portion (71), and a width L3 of the driving portion of the force sensor (3) is equal to or greater than a width L1 of the force receiving portion (71).

4. The vehicle door squeeze simulation test device according to claim 3, wherein a protection member is provided on each of the limiting portion and the driving portion, and the protection member enables a force receiving portion (71) to be in flexible contact with the limiting portion and the driving portion.

5. A door crush simulation test device according to claim 4, wherein the drive assembly (6) includes:

a drive shaft (61), wherein the drive shaft (61) is connected with a bearing block (63) by means of a flat key, and the bearing block (63) is fixedly connected with the force sensor (3);

a worm gear, to which the drive shaft (61) is connected by means of a flat key, the worm gear being arranged inside the bearing block (63);

the two ends of the worm (62) are fixedly connected with the base (1) through a locking piece (622), the worm (62) penetrates through the bearing block (63), and the driving shaft (61) drives the bearing block (63) to slide along the worm (62) through the worm wheel.

6. The vehicle door extrusion simulation test device according to claim 5, wherein the worm (62) is formed with a sliding groove (621) along the sliding direction of the force sensor (3), and the bearing block (63) is formed with a limiting protrusion corresponding to the sliding groove (621), and the limiting protrusion extends into the sliding groove (621).

7. The vehicle door extrusion simulation test device according to claim 6, wherein a limiting groove (141) is formed on the supporting beam (14) of the base (1), the bearing block (63) is fixedly connected with a connecting plate (64), a limiting protrusion (641) corresponding to the limiting groove (141) is formed on the connecting plate (64), and the limiting protrusion (641) extends into the limiting groove (141) so that the supporting beam (14) limits the bearing block (63).

8. A vehicle door extrusion simulation test device according to claim 5, wherein the vertical support beams (13) of the base (1) are formed with locking grooves (131) along the vertical direction, the two vertical support beams (13) are symmetrically arranged relative to the axis of the locking member (622), the locking member (622) is formed with locking holes corresponding to the locking grooves (131) of the two vertical support beams (13), and a fastening member passes through the locking holes and extends into the locking grooves (131) to lock the worm (62).

9. A door squeeze simulation test device according to claim 7, characterized in that the projections of the displacement sensor (4) and the bearing block (63) on a plane perpendicular to the sliding of the bearing block (63) overlap.

10. The vehicle door compression simulation test device according to claim 9, wherein the adaptor (5) and the carrier plate (2) are arranged in parallel, at least one roller (51) is formed at an end of the adaptor (5), and the adaptor (5) performs a sliding motion relative to the carrier plate (2) by means of the roller (51).

Images