CN109141914B - Test bench for measuring elastic coefficient of elastic body of limiter - Google Patents
Test bench for measuring elastic coefficient of elastic body of limiter Download PDFInfo
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- CN109141914B CN109141914B CN201810871046.9A CN201810871046A CN109141914B CN 109141914 B CN109141914 B CN 109141914B CN 201810871046 A CN201810871046 A CN 201810871046A CN 109141914 B CN109141914 B CN 109141914B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a test bench for measuring elastic coefficient of a stopper elastomer, which comprises: the device comprises a frame body mechanism, a driving mechanism, a traveling mechanism, a resistance measuring mechanism and a position measuring mechanism; the frame body mechanism comprises a bottom plate, a first mounting plate and a second mounting plate; the driving mechanism is connected to the travelling mechanism and drives the travelling mechanism to move close to or far away from the first mounting plate; the resistance measuring mechanism comprises a measuring part, a force sensor and a resisting support, the resisting support is fixed on the walking mechanism, the force sensor is placed on the walking mechanism, the first end of the force sensor is fixedly connected with the resisting support, and the second end of the force sensor is fixedly connected with the measuring part. The invention simulates the installation of the limiter to be tested on the vehicle door, and can obtain the data of the elastic coefficient of the limiter to be tested in the actual use state, so that the data is more accurate and is beneficial to optimizing the design of the vehicle door.
Description
Technical Field
The invention relates to a mechanical testing technology of functional parts, in particular to a test bench for measuring the elastic coefficient of an elastic body of a limiter.
Background
The automobile side door limiter is an important functional part in a side door system, and bears the requirements of safety of opening and closing an automobile side door and the requirements of comfort for opening and closing the operation side door. With the continuous development of the automobile industry, the quality requirements of people on automobiles are also continuously improved, and how to design an automobile side door limiter and a side door system which meet various requirements is a continuously pursued target of each automobile host factory.
The side door stopper of the automobile has many problems to be considered in the design, and because the side door system of the automobile is a mechanical mechanism which is mostly driven by manpower, the side door stopper of the automobile still needs to solve the problem of force at first. In car side door stop gear, not only need guarantee that the side door system is when certain side slope or the downhill path parking, require the side door to stop on spacing gear, be unlikely to automatic opening, bring the potential safety hazard for the vehicle, it crosses a grade operating force and must satisfy the designing requirement during the switching side door simultaneously, make the operation process be unlikely to overweight or light, influence the travelling comfort, the characteristic requirement of this all power, all derive from the elastic coefficient of elastomer in the stopper, reasonable elastic coefficient can provide reasonable spacing resistance for the motion of stopper arm pole, in order to provide reasonable side door switching power. If the accurate elasticity coefficient data is not used as the design basis, the design is difficult to be accurate! The consequence is that the side door limit fails, as follows: when a vehicle is parked on a certain side slope or an ascending slope or a descending slope, the side door cannot be stopped at a limit position and is automatically opened or closed, and the opening and closing force is large and difficult to operate; the opening and closing force is small, so that people feel lack of safety; the stopper works abnormally, influences defects such as travelling comfort and the like.
The traditional measuring method is to directly compress the elastomer to record the compression amount and the compression force so as to obtain the compression coefficient of the elastomer, but the limit resistance of the limiter is generated in the whole environment of the limiter, for example, the friction force between the elastomer and the periphery of a limiter box influences the measurement of the compression coefficient of the elastomer, so the traditional measuring method has certain defects and is not beneficial to obtaining the accurate elastic coefficient of the elastomer of the limiter.
Disclosure of Invention
The invention aims to provide a test bench for measuring the elastic coefficient of an elastic body of a stopper, which aims to solve the defects in the prior art, can obtain more accurate elastic coefficient data of a stopper box and is beneficial to optimization design.
The invention provides a test bench for measuring elastic coefficient of a stopper elastomer, which comprises: the device comprises a frame body mechanism, a driving mechanism, a traveling mechanism, a resistance measuring mechanism and a position measuring mechanism;
the frame body mechanism comprises a bottom plate, a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are oppositely mounted on two sides of the bottom plate; the first mounting plate is arranged to fix the limiter to be tested;
the driving mechanism is fixed on the second mounting plate and connected to the travelling mechanism and drives the travelling mechanism to move close to or far away from the first mounting plate;
the resistance measuring mechanism comprises a measuring part, a force sensor and a resisting support, the resisting support is fixed on the travelling mechanism, the force sensor is placed on the travelling mechanism, one end of the force sensor is fixedly connected with the resisting support, and the other end of the force sensor is fixedly connected with the measuring part;
the measuring piece is arranged to correspond to the two elastic bodies symmetrically arranged in the to-be-measured limiting stopper; the measuring piece comprises a first measuring part, two measuring surfaces are arranged on the first measuring part in a mirror symmetry mode, an included angle between the two measuring surfaces is an acute angle, and the two measuring surfaces are arranged to be used for respectively contacting and compressing the two elastic bodies;
the position measuring mechanism comprises a moving part and a fixing part, the moving part is fixed on the traveling mechanism, and the fixing part is fixed on the first mounting plate.
The test bench for measuring the elastic coefficient of the elastic body of the stopper is described above, wherein optionally, the driving mechanism includes a driving motor, a driving lead screw and a lead screw nut, and the driving motor is fixed on the second mounting plate; the driving screw rod is fixedly connected with the driving motor, the screw rod nut is matched with the driving screw rod, and the screw rod nut is fixed on the traveling mechanism.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, optionally, the driving mechanism further includes a driving motor fixing frame, a screw bearing sleeve and a coupling, the driving motor is connected to the driving screw through the coupling, the driving motor is fixed on the driving motor fixing frame, the driving motor fixing frame is fixed on the second mounting plate, two ends of the driving screw are respectively in interference fit with the screw bearing, the screw bearing is mounted in the screw bearing sleeve, and the screw bearing sleeve is fixed on the frame mechanism.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, wherein optionally, the traveling mechanism includes a support plate, a guide pillar, and a guide sleeve, the blocking bracket is fixed on the support plate, the guide sleeve is slidably fitted with the guide pillar, and two ends of the guide pillar are respectively fixedly connected with the first mounting plate and the second mounting plate.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, optionally, the traveling mechanism further includes a guide post sleeve, the bottom end of the guide post sleeve is fixed on the first mounting plate, the guide post sleeve is provided with a guide post mounting hole and a locking threaded hole, the locking threaded hole is arranged on the side wall of the guide post sleeve, the guide post mounting hole is communicated with the locking threaded hole, the guide post is inserted into the guide post mounting hole, the locking threaded hole is provided with a locking screw, the locking screw is in threaded fit with the locking threaded hole, and the end of the locking screw abuts against the side wall of the guide post.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, wherein optionally, the measuring piece further includes a second measuring portion, the cross-sectional shape of the second measuring portion is rectangular, and the second measuring portion and the first measuring portion are integrally formed.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, wherein optionally, the resistance measuring mechanism further comprises a directional plate, a directional plate fixing seat, a force sensor support and a guide post;
the measuring piece is fixed on the orientation plate, the orientation plate is fixed on the orientation plate fixing seat, the orientation plate fixing seat is fixedly connected to the force sensor, the orientation plate fixing seat slides on the guide post, the guide post is fixed on the blocking support, the force sensor supporting piece is sleeved on the outer side of the guide post, and the force sensor is placed on the upper side of the force sensor supporting piece.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, wherein optionally, the blocking bracket includes a first panel and a second panel, a plane where the first panel is located is perpendicular to a plane where the second panel is located, the first panel is fixed on the traveling mechanism, the force sensor support is placed on the first panel, and the force sensor is fixedly connected to the second panel.
The test bench for measuring the elastic coefficient of the elastic body of the stopper is described above, wherein optionally, the measuring piece further comprises a third measuring part, and the third measuring part has a cylindrical structure; the last confession that is provided with of directional board the perforation that third measurement portion passed, be provided with third measurement portion locating hole and third measurement portion locking hole on the directional board fixing base, third measurement portion locking hole with the third measurement portion locating hole link up, the third measurement portion locking hole outside and third measurement portion locking bolt screw-thread fit, the third measurement portion location arrives in the third measurement portion locating hole, third measurement portion locking bolt contradicts on the lateral wall of third measurement portion.
The test bench for measuring the elastic coefficient of the elastic body of the stopper as described above, wherein optionally, the test bench for measuring the elastic coefficient of the elastic body of the stopper further comprises a data processing system, and the data processing system is configured to collect the force detected by the force sensor and the displacement variation of the measuring member in the advancing direction of the traveling mechanism detected by the position measuring mechanism.
Compared with the prior art, the invention simulates the installation of the limiter to be tested on the vehicle door, and then the driving mechanism drives the measuring part on the traveling mechanism to detect the limiter to be tested, so that the data of the elastic coefficient of the limiter to be tested in the actual use state can be obtained, and the data is more accurate and is beneficial to optimizing the design of the vehicle door.
Drawings
FIG. 1 is a schematic view of a mounting structure of a stopper box on a vehicle body;
FIG. 2 is a schematic structural diagram of a test bench for measuring the elastic coefficient of an elastic body of a stopper according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rack mechanism in a test bench for measuring the elastic coefficient of an elastic body of a stopper according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a driving mechanism in a test bench for measuring the elastic coefficient of an elastic body of a stopper according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a running gear in a test bed frame for measuring the elastic modulus of an elastic body of a stopper according to an embodiment of the present invention;
FIG. 6 is an exploded view of a running gear in a test stand for measuring the elastic modulus of the elastic body of the stopper according to an embodiment of the present invention;
FIG. 7 is a perspective view of a resistance measuring mechanism in a test stand for measuring the spring rate of an elastomer of a stopper according to an embodiment of the present invention;
FIG. 8 is an exploded view of a resistance measuring mechanism in a test stand for measuring the spring rate of the elastomer of a stopper according to an embodiment of the present invention;
FIG. 9 is an exploded view of a test stand for measuring the spring rate of a stopper elastomer provided by an embodiment of the present invention;
FIG. 10 is a diagram of the working state of the measuring body of the test bench for measuring the elastic coefficient of the elastic body of the stopper according to the embodiment of the present invention;
description of reference numerals: 1-a frame body mechanism, 11-a base plate, 12-a first mounting plate, 13-a second mounting plate, 2-a drive mechanism, 21-a drive motor, 22-a drive screw, 23-a screw nut, 24-a drive motor mount, 25-a screw bearing, 26-a screw bearing sleeve, 27-a coupling, 3-a traveling mechanism, 31-a support plate, 32-a guide post, 33-a guide sleeve, 34-a guide post sleeve, 341-a guide post mounting hole, 342-a locking threaded hole, 35-a locking screw, 4-a resistance measurement mechanism, 41-a measurement piece, 411-a first measurement part, 4111-a first measurement surface, 4112-a second measurement surface, 412-a second measurement part, 42-a force sensor, 43-a blocking bracket, 431-a first panel, 432-a second panel, 44-an orientation plate, 45-an orientation plate fixing seat, 46-a force sensor support, 47-a guide column, 5-a position measuring mechanism, 51-a movable part, 52-a fixed part, 6-a limiter to be measured, 7-a data processing system, 100-a limiter arm rod, 200-a limiter mounting bracket and 300-a limiter box.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The embodiment of the invention comprises the following steps: as shown in fig. 1, a schematic diagram of a mounting structure of a stopper in a side door system is shown, wherein a stopper arm 100 is rotatably connected to a stopper mounting bracket 200, the stopper mounting bracket 200 is fastened to a vehicle body, the stopper arm 100 is slidably connected to a stopper box 300, the stopper box 300 is fastened to a side door, when the side door is opened and closed, the side door rotates around a hinge axis, the stopper arm 100 rotates around the stopper mounting bracket 200, the stopper arm 100 slides along a guide groove of the stopper box 300, as the contour size of the stopper arm 100 changes, an elastic body in the stopper box 300 provides different positive pressure to a stopper slider, and accordingly generates different motion resistance, that is, force for preventing the side door from opening and closing, and the elastic coefficient of the elastic body in the stopper box 300 is accurately obtained, which is important for the design of the stopper, a conventional measuring method is to directly compress the elastic body to record compression amount and compression force, therefore, the compression coefficient of the elastic body is obtained, but the limit resistance of the limiter is generated in the whole environment of the limiter, for example, the measurement of the compression coefficient of the elastic body is influenced by the friction force between the elastic body and the periphery of the limiter box, so that the traditional measuring method has certain defects and is not beneficial to obtaining the accurate elastic coefficient of the elastic body of the limiter. This application has simulated the state of stopper installation behind the door and has measured its coefficient of elasticity to obtain more accurate data.
As shown in fig. 2 and 9, the present invention discloses a test bench for measuring elastic coefficient of a stopper elastomer, comprising: the device comprises a frame body mechanism 1, a driving mechanism 2, a traveling mechanism 3, a resistance measuring mechanism 4 and a position measuring mechanism 5;
as shown in fig. 3, the frame body mechanism 1 includes a bottom plate 11, a first mounting plate 12 and a second mounting plate 13, wherein the first mounting plate 12 and the second mounting plate 13 are oppositely mounted on two sides of the bottom plate 11; the plane of the first mounting plate 12 is perpendicular to the plane of the bottom plate 11, and the plane of the second mounting plate 13 is perpendicular to the plane of the bottom plate 11; the frame body mechanism 1 is used as a mounting bracket for other parts. The first mounting plate 12 is arranged for mounting the limiter 6 to be tested; and the first mounting plate 12 is provided with an opening, the central position of the to-be-measured limiter 6 is just opposite to the position of the opening after the to-be-measured limiter 6 is mounted and fixed, the purpose of mounting the to-be-measured limiter 6 at the opening is that when the simulated limiter arm rod slides with the to-be-measured limiter 6, the opening can be used for the simulated limiter arm rod to pass through, and the measuring part 41 is adopted to simulate the limiter arm rod in the measuring stage.
As shown in fig. 4, the driving mechanism 2 is fixed on the second mounting plate 13, and the driving mechanism 2 is connected to the traveling mechanism 3 and drives the traveling mechanism 3 to move closer to or away from the first mounting plate 12; and install measuring part 41 on running gear 3, measuring part 41 is set up to two elastomers 61 that set up with the inside symmetry of the stopper 6 that awaits measuring corresponding, and when actuating mechanism 2 drive running gear 3 was close to when first mounting panel 12, measuring part 41 and the stopper 6 that awaits measuring take place relative slip under running gear 3's drive, just measuring part 41 promotes two elastomer compressions in the stopper 6 that awaits measuring. The traveling mechanism 3 is used as a carrier for moving the measuring part 41, and the driving mechanism 2 drives the measuring part 41 to move through the traveling mechanism 3.
As shown in fig. 7 and 8, the resistance measuring mechanism 4 includes a measuring member 41, a force sensor 42 and a resisting bracket 43, the measuring member 41 includes a first measuring portion 411, two measuring surfaces 4111 and 4112 are symmetrically disposed on the first measuring portion 411, an included angle between the first measuring surface 4111 and the second measuring surface 4112 is an acute angle, and the first measuring surface 4111 and the second measuring surface 4112 are configured to contact and compress the elastic bodies 61 corresponding to each other. In specific implementation, the first measuring portion 411 may have a wedge structure, and the shape of a cross section of the wedge along a direction perpendicular to the first measuring surface 4111 is an isosceles triangle; the direction of the bisector of the isosceles triangle is parallel to the motion direction of the traveling mechanism 3, the angle of the vertex angle of the isosceles triangle is θ, and θ is the degree of the included angle between the first measuring surface 4111 and the second measuring surface 4112; the planes where the two waists of the isosceles triangle are located are a first measuring surface 4111 and a second measuring surface 4112 respectively.
The resisting support 43 is fixed on the traveling mechanism 3, the force sensor 42 is placed on the traveling mechanism 3, a first end of the force sensor 42 is fixedly connected with the resisting support 43, and a second end of the force sensor 42 is fixedly connected with the measuring part 41; the force sensor 42 records in real time a retardation force Ft generated by the measuring member 41 and the elastic body during movement, the retardation force Ft is not a positive pressure Fn acting on the elastic body 61 to compress the elastic body 61, but the positive pressure Fn of the measuring member 41 acting on the elastic body 61 at different positions can be calculated by using force composition and decomposition according to the retardation force Ft and an included angle theta between the first measuring surface 4111 and the second measuring surface 4112, so that the variation of the positive pressure of the measuring member 41 before two positions can be calculated
As shown in fig. 2 to 5, the position measuring mechanism 5 includes a movable member 51 and a fixed member 52, the movable member 51 is fixed to the traveling mechanism 3, and the fixed member 52 is fixed to the first mounting plate 12. The movable element 51 approaches the fixed element 52 along with the movement of the traveling mechanism 3, the fixed element 52 can read the position of the movable element 51, and the relative positional relationship between the measuring element 41 and the elastic body can be determined by the position measuring mechanism 5, that is, the distance that the measuring element 41 advances along the moving direction of the traveling mechanism 3 can be obtained.
When the measuring part 41 pushes the two elastic bodies in the to-be-measured stopper 6 to compress, since the first measuring part 411 is a wedge-shaped body, and the thickness of the wedge-shaped body changes along the moving direction of the traveling mechanism 3, when the wedge-shaped body slides relative to the stopper 6 to be measured, the compression amount of the two elastic bodies can be changed.
The driving motor 21 drives the traveling mechanism 3 to move close to or away from the first mounting plate 12, the measuring part 41 fixed on the traveling mechanism 3 moves along with the movement of the traveling mechanism 3, when the traveling mechanism 3 is close to the first mounting plate 12, the first measuring part 411 on the measuring part 41 is inserted between two elastic bodies inside the stopper 6 to be measured, and the first measuring part 411 continuously pushes the two elastic bodies to be compressed along with the movement of the traveling mechanism 3. Since the variation δ L of the distance in the advancing direction of the traveling mechanism 3 of the first measuring unit 411 and the variation δ s of the compression amount of the elastic body have a certain correlation, the variation δ s of the compression amount of the elastic body can be calculated from the variation δ L and the intersection angle θ of the first measuring surface 4111 and the second measuring surface 4112, and specifically, the relationship between the variation δ L of the compression amount s divided by the variation δ L of the distance in the advancing direction of the traveling mechanism 3 of the first measuring unit 411 is exactly equal to the tangent value of θ/2. The variation of δ L is measured by the cooperation of the fixed element 52 fixed on the first mounting plate 12 and the movable element 51 fixed on the traveling mechanism 3, and the position measuring mechanism 5 adopts a position measuring device commonly available on the market and is not improved by the present application. The variation δ s of the elastic body compression can be calculated according to a formula, only the positive pressure Fn causing the elastic body compression needs to be calculated to calculate the elastic coefficient of the elastic body, the force sensor 42 can record the retardation force Ft generated by the measuring member 41 and the elastic body in the moving process in real time, and the positive pressure Fn acting on the elastic body to compress the elastic body can be calculated according to the retardation force Ft and the included angle θ between the first measuring surface 4111 and the second measuring surface 4112, so that the elastic coefficient of the elastic body can be calculated.
According to the invention, the to-be-tested limiter 6 is arranged on the first mounting plate 12, the mounting of the to-be-tested limiter 6 on the vehicle door is simulated, and then the to-be-tested limiter 6 is detected through the measuring part 41, so that the data of the elastic coefficient of the to-be-tested limiter 6 in an actual use state can be obtained, and the data is more accurate and is beneficial to the optimization design.
Specifically, as shown in fig. 4, the driving mechanism 2 includes a driving motor 21, a driving screw 22 and a screw nut 23, and the driving motor 21 is fixed on the second mounting plate 13; the driving screw 22 is fixedly connected with the driving motor 21, the screw nut 23 is matched with the driving screw 22, and the screw nut 23 is fixed on the traveling mechanism 3. The scheme provides a structure which converts the rotation of the motor into linear motion through the matching of the motor and the screw rod, and can also be used for driving the traveling mechanism 3 to do linear reciprocating motion. The driving motor 21 drives the screw rod 22 to rotate, the driving screw rod 22 is in threaded fit with the screw rod nut 23, and the screw rod is fixedly connected with the traveling mechanism 3, so that the driving screw rod 22 rotates to drive the traveling mechanism 3 to linearly move.
It can be understood that the driving mechanism 2 further includes a driving motor fixing frame 24, a screw shaft bearing 25, a screw shaft bearing sleeve 26 and a coupling 27, the driving motor 2 is connected to the driving screw 22 through the coupling 27, the driving motor 2 is fixed on the driving motor fixing frame 24, the driving motor fixing frame 24 is fixed on the second mounting plate 13, two ends of the driving screw 22 are respectively in interference fit with the screw shaft bearing 25, the screw shaft bearing 25 is mounted in the screw shaft bearing sleeve 26, and the screw shaft bearing sleeve 26 is fixed on the frame mechanism 1. The driving motor 2 drives the driving screw 22 to rotate around the screw shaft bearings 25 at the two ends through the shaft coupling 27, the outer rings of the screw shaft bearings 25 at the two ends are fixed on the screw shaft bearing sleeves 26, and the screw shaft bearing sleeves 26 are fixed on the frame mechanism 1.
As shown in fig. 5 and 6, the traveling mechanism 3 includes a supporting plate 31, a guide pillar 32 and a guide sleeve 33, the stopping bracket 43 is fixed on the supporting plate 31, the guide sleeve 33 is slidably engaged with the guide pillar 32, and two ends of the guide pillar 32 are respectively fixedly connected with the first mounting plate 12 and the second mounting plate 13. When the driving screw 22 and the screw nut 23 rotate relatively, the screw nut 23 drives the traveling mechanism 3 to move, the guide sleeves 33 on the traveling mechanism 3 slide along the guide posts 32 to realize the movement of the traveling mechanism 3, wherein the guide posts 32 are fixed on the frame body mechanism 1, the number of the guide posts 32 can be two, the number of the corresponding guide sleeves 33 is also two, the two guide sleeves 33 slide on the corresponding guide posts respectively, and the two guide posts are arranged to enable the traveling mechanism 3 to move more stably.
Further, the traveling mechanism 3 further includes a guide post sleeve 34, the bottom end of the guide post sleeve 34 is fixed on the first mounting plate 12, a guide post mounting hole 341 and a locking threaded hole 342 are formed in the guide post sleeve 34, the locking threaded hole 342 is formed in the side wall of the guide post sleeve 34, the guide post mounting hole 341 and the locking threaded hole 342 are communicated with each other, the guide post 32 is inserted into the guide post mounting hole 341, a locking screw 35 is arranged on the locking threaded hole 342, the locking screw 35 is in threaded fit with the locking threaded hole 342, and a first end of the locking screw 35 abuts against the side wall of the guide post 32. In this embodiment, the guide post 32 is fixed on the frame body mechanism 1 by the guide post sleeve 34, and the guide post 32 is locked and fixed by the locking screw 35 to prevent the guide post 32 from rotating circumferentially, and optionally, the through direction of the locking threaded hole 342 is perpendicular to the through direction of the guide post mounting hole 341, which facilitates the locking of the guide post 32 by the locking screw 35 because the locking screw 35 vertically abuts against the side wall of the guide post 32.
Further, as shown in fig. 7 and 8, the measuring member 41 further includes a second measuring portion 412, the cross-sectional shape of the second measuring portion 412 is rectangular, and the second measuring portion 412 is integrally formed with the first measuring portion 411. When the second measuring portion 412 is inserted between the two elastic bodies, the amount of compression of the two elastic bodies pushed by the second measuring portion 412 is not changed, and the data measured by the force sensor 42 is the friction force generated between the second measuring portion 412 and the two elastic bodies.
The force measuring mechanism 4 further comprises an orientation plate 44, an orientation plate fixing seat 45, a force sensor support 46 and a guide column 47; the measuring part 41 is fixed on the directional board 44, the directional board 44 is fixed on the directional board fixing seat 45, the purpose of setting up the directional board 44 and the design board fixing seat 45 is to avoid the measuring part 41 front end that the measuring part 41 overlength caused to hang down to cause the influence to force sensor 42 sensitivity, because the measuring part 41 is long and narrow form, measuring part 41 lug connection to force sensor 42, measuring part 41 can cause the influence of pushing down to force sensor 42, can avoid above-mentioned condition to take place through the setting of directional board 44 and directional board fixing seat 45. The measuring element 41 in particular is fixed on an orientation plate 44, said orientation plate 44 being fixed on an orientation plate holder 45, the orientation plate holder 45 being fixedly connected to the force sensor 42 by means of bolts. Simultaneously directional board fixing base 45 slides on guide post 47, guide post 47 is fixed on the support 43, transmit force that measuring part 41 was surveyed to force sensor 42 through directional board fixing base 45 on, directional board fixing base 45 is connected with force sensor 42 through the bolt, directional board fixing base 45 and the gliding purpose of guide post 47 are that directional board fixing base 45 can produce the removal along with force sensor 42's deformation when force sensor 42 receives extrusion force microdeformation, need avoid the too big influence of frictional force to measurement to the contact surface between sizing board fixing base 45 and the guide post 47 in order not to produce extra retardation. And the guide posts 47 can support the orientation plate fixing seat 45 so that the orientation plate fixing seat 45 can be separated from the support plate 31 to avoid friction between the orientation plate fixing seat 45 and the support plate 31. And a force sensor support 46 is provided at the outer side of the guide post 47 so as to support the force sensor 42, so that the force sensor 42 is directly placed on the force sensor support 46.
The withstanding bracket 43 comprises a first panel 431 and a second panel 432, the plane of the first panel 431 is perpendicular to the plane of the second panel 432, the first panel 431 is fixed on the travelling mechanism 3, the force sensor support 46 is placed on the first panel 431, and the force sensor 42 is fixedly connected to the second panel 432. The purpose of the first panel 431 is to prevent the fixed seat 45 of the orientation plate from contacting the surface of the running gear 3, which requires that the length of the first panel 431 is not higher than the length of the support 46 of the force sensor, so that the force sensor 42 will not generate extra retardation force when it is slightly deformed by force.
The measuring member 41 further includes a third measuring portion 413, the third measuring portion 413 having a cylindrical structure; be provided with the confession on the directional board 44 the perforation that third measurement portion 413 passed, be provided with third measurement portion locating hole and third measurement portion locking hole on the directional board fixing base 45, third measurement portion locking hole with third measurement portion locating hole link up, the third measurement portion locking hole outside and third measurement portion locking bolt screw-thread fit, the third measurement portion location arrives in the third measurement portion locating hole, third measurement portion locking bolt contradicts on the lateral wall of third measurement portion.
The test rig for measuring the spring rate of the stopper elastomer may also include a data processing system 7. The data processing system 7 is provided for acquiring the force detected by the force sensor 42 and the amount of change in the displacement of the measuring element 41 in the advancing direction of the running gear 3 detected by the position measuring mechanism 5. The data processing system may be, for example, a Central Processing Unit (CPU), and directly operate the data according to a known formula after receiving the data to obtain the elastic coefficient, or query a table of force, position change amount, and elastic coefficient by using a table lookup method after receiving the data to obtain the elastic coefficient. Alternatively, the data processing system may be, for example, a display screen, and the display screen may display the acquired related data, and a person skilled in the art may calculate the elastic coefficient according to the displayed related data. The data processing system 7 is arranged to enable more convenient calculations. And manual calculation is reduced.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (10)
1. A test bench for measuring the spring rate of a stopper elastomer, comprising: the device comprises a frame body mechanism, a driving mechanism, a traveling mechanism, a resistance measuring mechanism and a position measuring mechanism;
the frame body mechanism comprises a bottom plate, a first mounting plate and a second mounting plate, wherein the first mounting plate and the second mounting plate are oppositely mounted on two sides of the bottom plate; the first mounting plate is arranged to fix the limiter to be tested;
the driving mechanism is fixed on the second mounting plate and connected to the travelling mechanism and drives the travelling mechanism to move close to or far away from the first mounting plate;
the resistance measuring mechanism comprises a measuring part, a force sensor and a resisting support, the resisting support is fixed on the travelling mechanism, the force sensor is placed on the travelling mechanism, one end of the force sensor is fixedly connected with the resisting support, and the other end of the force sensor is fixedly connected with the measuring part;
the measuring piece is arranged to correspond to the two elastic bodies symmetrically arranged in the to-be-measured limiting stopper; the measuring piece comprises a first measuring part, two measuring surfaces are arranged on the first measuring part in a mirror symmetry mode, an included angle between the two measuring surfaces is an acute angle, and the two measuring surfaces are arranged to be used for respectively contacting and compressing the two elastic bodies;
the position measuring mechanism comprises a moving part and a fixing part, the moving part is fixed on the traveling mechanism, and the fixing part is fixed on the first mounting plate.
2. The test bench for measuring the spring rate of a stopper elastomer of claim 1 wherein: the driving mechanism comprises a driving motor, a driving screw rod and a screw rod nut, and the driving motor is fixed on the second mounting plate; the driving screw rod is fixedly connected with the driving motor, the screw rod nut is matched with the driving screw rod, and the screw rod nut is fixed on the traveling mechanism.
3. The test bench for measuring the spring rate of a stopper elastomer of claim 2 wherein: the driving mechanism further comprises a driving motor fixing frame, a screw rod bearing sleeve and a coupler, the driving motor is connected to the driving screw rod through the coupler, the driving motor is fixed on the driving motor fixing frame, the driving motor fixing frame is fixed on the second mounting plate, two ends of the driving screw rod are in interference fit with the screw rod bearing sleeve respectively, the screw rod bearing is installed in the screw rod bearing sleeve, and the screw rod bearing sleeve is fixed on the frame body mechanism.
4. The test bench for measuring the spring rate of a stopper elastomer of claim 1 wherein: the walking mechanism comprises a supporting plate, a guide pillar and a guide sleeve, the blocking support is fixed on the supporting plate, the guide sleeve is fixed on the supporting plate and is in sliding fit with the guide pillar, and two ends of the guide pillar are fixedly connected with the first mounting plate and the second mounting plate respectively.
5. The test bench for measuring the spring rate of a stopper elastomer of claim 4 wherein: the traveling mechanism further comprises a guide column sleeve, the bottom end of the guide column sleeve is fixed on the first mounting plate, a guide column mounting hole and a locking threaded hole are formed in the guide column sleeve, the locking threaded hole is formed in the side wall of the guide column sleeve, the guide column mounting hole is communicated with the locking threaded hole, the guide column is inserted into the guide column mounting hole, a locking screw is arranged on the locking threaded hole, the locking screw is in threaded fit with the locking threaded hole, and the end of the locking screw abuts against the side wall of the guide column.
6. The test bench for measuring the spring rate of a stopper elastomer of claim 1 wherein: the measuring piece further comprises a second measuring part, the cross section of the second measuring part is rectangular, and the second measuring part and the first measuring part are integrally formed.
7. The test bench for measuring the spring rate of a stopper elastomer of claim 1 wherein: the resistance measuring mechanism also comprises a directional plate, a directional plate fixing seat, a force sensor supporting piece and a guide post;
the measuring piece is fixed on the orientation plate, the orientation plate is fixed on the orientation plate fixing seat, the orientation plate fixing seat is fixedly connected to the force sensor, the orientation plate fixing seat slides on the guide post, the guide post is fixed on the blocking support, the force sensor supporting piece is sleeved on the outer side of the guide post, and the force sensor is placed on the upper side of the force sensor supporting piece.
8. The test rig for measuring the spring rate of a stopper elastomer of claim 7, wherein: the blocking support comprises a first panel and a second panel, the plane where the first panel is located is perpendicular to the plane where the second panel is located, the first panel is fixed on the traveling mechanism, the force sensor supporting piece is placed on the first panel, and the force sensor is fixedly connected to the second panel.
9. The test rig for measuring the spring rate of a stopper elastomer of claim 7, wherein: the measuring piece further comprises a third measuring part, and the third measuring part is of a cylindrical structure; the last confession that is provided with of directional board the perforation that third measurement portion passed, be provided with third measurement portion locating hole and third measurement portion locking hole on the directional board fixing base, third measurement portion locking hole with the third measurement portion locating hole link up, the third measurement portion locking hole outside and third measurement portion locking bolt screw-thread fit, the third measurement portion location arrives in the third measurement portion locating hole, third measurement portion locking bolt contradicts on the lateral wall of third measurement portion.
10. A test rig for measuring the spring rate of a stopper elastomer as claimed in any one of claims 1 to 9, wherein: the walking mechanism further comprises a data processing system which is set to be used for acquiring the force detected by the force sensor and the displacement variation of the measuring piece detected by the position measuring mechanism along the advancing direction of the walking mechanism.
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| CN201810871046.9A CN109141914B (en) | 2018-08-02 | 2018-08-02 | Test bench for measuring elastic coefficient of elastic body of limiter |
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| CN201810871046.9A CN109141914B (en) | 2018-08-02 | 2018-08-02 | Test bench for measuring elastic coefficient of elastic body of limiter |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011102308A1 (en) * | 2011-05-21 | 2012-11-22 | Dsd Dr. Steffan Datentechnik Gmbh | Device for simulating reaction of vehicle component during crash, has force limiter differently positioned at carriage or mounted at component of carriage system, where component of carriage system is attached with carriage |
| CN103543008A (en) * | 2012-07-10 | 2014-01-29 | 北京精密机电控制设备研究所 | Spiral transmission mechanism characteristic experimental apparatus |
| CN104006958A (en) * | 2014-06-17 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Vehicle door limiter working condition simulation device and performance detecting equipment |
| CN203811366U (en) * | 2014-04-01 | 2014-09-03 | 上海通用汽车有限公司 | Test bench for durability of automobile door part and test bench bracket |
| CN104089781A (en) * | 2014-06-12 | 2014-10-08 | 江苏皓日汽车零部件有限公司 | Novel vehicle door hinge and stopper integrated test bench rack |
| CN104215463A (en) * | 2014-09-18 | 2014-12-17 | 重庆长安汽车股份有限公司 | Test stand for testing energy absorbing performance of bulge in car |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424597B (en) * | 2008-12-08 | 2011-08-10 | 奇瑞汽车股份有限公司 | Durability test device for vehicle door stop |
| CN202216756U (en) * | 2011-08-05 | 2012-05-09 | 中国航天科技集团公司第四研究院第四十四研究所 | temperature compensation type limiter |
| CN202511962U (en) * | 2012-02-24 | 2012-10-31 | 长城汽车股份有限公司 | Detection tool for automobile door hinge and limiting stopper |
| CN204085901U (en) * | 2014-09-16 | 2015-01-07 | 奇瑞汽车股份有限公司 | A kind of automobile side-door system overload enabling performance detection tester |
| CN205426530U (en) * | 2015-12-18 | 2016-08-03 | 北汽福田汽车股份有限公司 | Helping hand arm component and its door has and in open test device |
| CN206627285U (en) * | 2017-01-17 | 2017-11-10 | 上海宏宝汽配有限公司 | A kind of automobile door stopper is performance test bed |
-
2018
- 2018-08-02 CN CN201810871046.9A patent/CN109141914B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011102308A1 (en) * | 2011-05-21 | 2012-11-22 | Dsd Dr. Steffan Datentechnik Gmbh | Device for simulating reaction of vehicle component during crash, has force limiter differently positioned at carriage or mounted at component of carriage system, where component of carriage system is attached with carriage |
| CN103543008A (en) * | 2012-07-10 | 2014-01-29 | 北京精密机电控制设备研究所 | Spiral transmission mechanism characteristic experimental apparatus |
| CN203811366U (en) * | 2014-04-01 | 2014-09-03 | 上海通用汽车有限公司 | Test bench for durability of automobile door part and test bench bracket |
| CN104089781A (en) * | 2014-06-12 | 2014-10-08 | 江苏皓日汽车零部件有限公司 | Novel vehicle door hinge and stopper integrated test bench rack |
| CN104006958A (en) * | 2014-06-17 | 2014-08-27 | 安徽江淮汽车股份有限公司 | Vehicle door limiter working condition simulation device and performance detecting equipment |
| CN104215463A (en) * | 2014-09-18 | 2014-12-17 | 重庆长安汽车股份有限公司 | Test stand for testing energy absorbing performance of bulge in car |
Non-Patent Citations (1)
| Title |
|---|
| 轿车门二限位器疲劳试验平台;孙以才;《天津汽车》;20030215;全文 * |
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