CN218865521U

CN218865521U - Front auxiliary frame test device

Info

Publication number: CN218865521U
Application number: CN202320107836.6U
Authority: CN
Inventors: 石浩明; 童静; 冯源; 章培杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-04-14
Anticipated expiration: 2033-02-03

Abstract

The utility model discloses a preceding sub vehicle frame test device, including fixed subassembly and test assembly, preceding sub vehicle frame demountable installation is in on the fixed subassembly, test assembly demountable installation is in on the preceding sub vehicle frame; the fixed component comprises a fixed seat, a fixed frame, a fixed plate and a fixed block, the two ends of the fixed frame are respectively connected with the fixed seat and the fixed plate in an installing mode, one side of the fixed plate is fixedly installed on the fixed block, and the test component comprises an actuator connecting rod. The method has the advantages that the vertical circulating force load and the static force load applied to the mounting point of the stabilizer bar of the front auxiliary frame by the wheels are simulated, so that the use condition of the front auxiliary frame on a real road can be effectively simulated, and the fatigue durability and the structural strength of the mounting point of the stabilizer bar of the front auxiliary frame are detected; the complexity of real vehicle testing is simplified, the testing accuracy is improved, and the testing effect and efficiency are improved.

Description

Front auxiliary frame test device

Technical Field

The utility model belongs to the technical field of sub vehicle frame bench test development, concretely relates to preceding sub vehicle frame test device.

Background

The front auxiliary frame is a chassis structural member of a passenger vehicle, is an installation platform of important components such as tires, control arms, steering knuckles, stabilizer bars and shock-absorbing struts, directly determines the driving performance, driving experience and reliability of the vehicle, and needs to test the mechanical property and fatigue durability of a chassis system for a long time to obtain test data of different test items so as to evaluate the mechanical property and fatigue durability of the front auxiliary frame.

However, in the actual vehicle testing method, because the test standards are different, the test period is long, strict requirements are imposed on the test site environment, the required test cost is high, the existing testing device has a single testing function, and fatigue endurance tests in different directions or static load tests with specified loading speeds cannot be performed on different positions of the front subframe, so that the testing effect is not accurate enough, and the testing efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a front auxiliary frame testing device.

The utility model discloses the technical scheme who adopts does: the front auxiliary frame is detachably mounted on the fixed assembly, and the test assembly is detachably mounted on the front auxiliary frame; fixed subassembly includes fixing base, mount, fixed plate and fixed block, the both ends of mount respectively with the fixing base with fixed plate erection joint, fixed block one side with fixed plate demountable installation, the opposite side of fixed block with preceding sub vehicle frame demountable installation, experimental subassembly includes the actuator connecting rod.

As a preferred choice, the both sides of preceding sub vehicle frame are equipped with a fixed subassembly respectively, two fixed subassembly respectively with the center department of preceding sub vehicle frame is the mirror image setting for each other for the plane of symmetry.

As a preferred choice, preceding sub vehicle frame includes control arm and stabilizer bar, one side is equipped with the control arm joint on the control arm, the terminal bulb round pin of control arm with the control arm joint is articulated, control arm demountable installation is in on the preceding sub vehicle frame.

As the utility model discloses a preferably, experimental subassembly includes direction base, direction bearing mounting panel and direction bearing, the direction bearing mounting panel is fixed on the direction base, the direction bearing is fixed on the direction bearing mounting panel, the direction bearing runs through and is equipped with the guiding axle, the both ends of guiding axle are equipped with a guiding axle fixed plate respectively, the guiding axle fixed plate is used for fixing the guiding axle is close to guiding axle fixed plate one side of preceding sub vehicle frame with the control arm joint is articulated, keeps away from another guiding axle fixed plate of preceding sub vehicle frame with actuator connecting rod demountable installation.

As the utility model discloses a preferred, the test subassembly includes loading piece and loading joint, loading piece demountable installation be in on the preceding sub vehicle frame, the both ends of loading piece are equipped with a loading pole respectively, the one end of loading pole with loading piece fixed connection, the other end of loading pole respectively with loading joint connects, loading joint through end joint bearing with the actuator connecting rod is connected.

As the utility model discloses a preferred, test device includes that power assembly suspension mounting point connects, power assembly suspension mounting point connects demountable installation in on the preceding sub vehicle frame, power assembly suspension mounting point connect through end joint bearing with the actuator connecting rod is articulated.

As the utility model discloses a preferred, test device includes vertical joint, the one end that vertical joint with the stabilizer bar is articulated, the other end that vertical joint pass through end joint bearing with the actuator connecting rod is articulated.

As the utility model discloses a preferred, test device includes vertical loading piece, vertical loading piece is located on the mounting point of stabilizer bar, and with preceding sub vehicle frame demountable installation, vertical loading piece with the actuator connecting rod is articulated.

The beneficial effects of the utility model are that:

1. the utility model relates to a front auxiliary frame test device, which can effectively simulate the use condition of a front auxiliary frame on a real vehicle road and detect the fatigue durability and the structural strength of the front auxiliary frame by simulating the transverse and longitudinal circulating force load and the static load transmitted to the front auxiliary frame by the wheel center of a wheel; the use condition of the front auxiliary frame on a real vehicle road can be effectively simulated by simulating the transverse circulating force load and the static force load applied to the front auxiliary frame by the steering gear, and the fatigue durability and the structural strength of the mounting point of the steering gear of the front auxiliary frame are detected; longitudinal circulating force load and static force load applied to the front auxiliary frame power assembly suspension mounting point by the power assembly are simulated, so that the use condition of the front auxiliary frame on a real vehicle road can be effectively simulated, and the fatigue durability and the structural strength of the front auxiliary frame power assembly suspension mounting point are detected; vertical circulating force load and static load applied to the mounting point of the stabilizer bar of the front auxiliary frame by the simulation wheel can effectively simulate the use condition of the front auxiliary frame on a real vehicle road, and the fatigue durability and the structural strength of the mounting point of the stabilizer bar of the front auxiliary frame are detected; the complexity of real vehicle testing is simplified, the testing accuracy is improved, and the testing effect is improved.

2. Through changing servo actuator, the actuator connecting rod, direction subassembly and control arm joint direction, apply vertical (X to) or horizontal (Y to) two kinds of not equidirectional circulation force load and static load to preceding sub vehicle frame, control arm connects one end processing out with control arm ball round pin conical surface assorted taper hole, be convenient for fixed locking, the screw hole is processed out to the other end, through the bolt fastening at the direction subassembly, the direction of the effect and the power value precision of sub vehicle frame before the actuator loading has been guaranteed like this, test device's installation effectiveness and maintainability have been improved again.

3. The steering gear assembly simulating steering gear structure formed by the loading block, the loading rod and the loading joint applies transverse (Y-direction) circulating force load and static force load to the front auxiliary frame, one end of the end joint bearing is hinged to the loading joint through a bolt, the other end of the end joint bearing is connected with the actuator connecting rod and locked by a nut, so that the interference of the actuator connecting rod and the loading joint is reduced, and the simulation precision of the test and the service life of the test device are improved.

4. Through power assembly suspension mounting point load joint, exert fore-and-aft (X to) circulation force load and static load to preceding sub vehicle frame, end joint bearing one end is passed through bolt hinged joint, and the other end is connected and is locked with the nut with the actuator connecting rod, has both reduced actuator connecting rod and load joint's interference like this, has improved experimental simulation precision and test device's life again.

5. Vertical (Z to) circulation force load is applyed to preceding sub vehicle frame stabilizer bar through vertical joint, and vertical joint one end articulates the terminal mounting hole of stabilizer bar, and the other end articulates the end joint bearing of actuator connecting rod, has so both reduced the interference of actuator connecting rod and vertical joint, has improved experimental simulation accuracy and test device's life again.

6. Vertical (Z to) static load is exerted to preceding sub vehicle frame stabilizer bar mounting point through vertical loading piece, and end joint bearing one end articulates vertical loading piece, and the other end is connected the actuator connecting rod and is locked with the nut, has so both reduced the interference of actuator connecting rod and vertical loading piece, has improved experimental simulation accuracy and test device's life again.

7. The left and right vehicle body fixing assemblies of the front auxiliary frame simulate the connection structure form of the front auxiliary frame and the vehicle body, the rigidity requirement of the vehicle body is met, and the stress deformation condition of the front auxiliary frame and the stress deformation condition of the vehicle during actual road running tend to be consistent in the test process.

8. Preceding sub vehicle frame automobile body fixed subassembly simulation front sub vehicle frame and vehicle connection structural style to consider the vertical fatigue test needs of stabilizer bar mounting point, made near the preceding sub vehicle frame goat's horn position of subassembly the structure and hollowed out, in order to dodge vertical joint upper and lower operating range, prevent that the motion from interfering. The fixed assembly is of a tailor-welded steel plate structure, and reinforcing ribs are arranged at stress concentration positions, so that the purpose of structural reinforcement is achieved. Simultaneously, the accessible changes the installing support height, changes the position of installation piece on the mounting panel to the auxiliary frame has stronger assembly flexibility to the auxiliary frame before the half frame formula four point connection of other types has the spatial position change of the goat's horn bush and the automobile body mounting hole of auxiliary frame before the adaptation, promotes its multipurpose value.

9. Left and right direction subassembly has sufficient structural rigidity, can effectively retrain the direction of the power load that the actuator applyed the front sub vehicle frame, guarantees that servo actuator requires the effort of output regulation direction and power value according to the test item to the accessible changes the T type nut position in guide holder T type groove, adjusts the height of direction bearing mounting panel, with the loading height that adapts to the difference. The guide assembly is simple in structure and easy to maintain.

10. Through fixing preceding sub vehicle frame at test platform according to real car installation equidirectional, under the cyclic force load and the static load prerequisite that realize the test standard requirement, both simplified test device structure, improved test device assembly efficiency again.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic view of a horizontal plane longitudinal (X direction) loading state of a wheel center of a wheel according to an embodiment of the present invention;

fig. 2 is a schematic view of a horizontal plane transverse (Y direction) loading state of a wheel center of the embodiment of the present invention;

fig. 3 is a schematic view of a transverse (Y-direction) loading state of a steering gear mounting point according to an embodiment of the present invention;

fig. 4 is a schematic view of a longitudinal (X-direction) loading state of a suspension mounting point of a powertrain according to an embodiment of the present invention;

FIG. 5 is a schematic view of a vertical fatigue test (Z direction) loading state of a mounting point of a stabilizer bar according to an embodiment of the present invention;

fig. 6 is a schematic view of a vertical strength test (Z direction) loading state of a stabilizer bar mounting point according to an embodiment of the present invention.

In the figure: 1. a front subframe; 2. a fixing component; 3. a test assembly; 11. a control arm; 12. a sheep horn casing; 13. a stabilizer bar; 14. an end knuckle bearing; 15. a control arm joint; 111. a left control arm; 112. a right control arm; 151. a left control arm joint; 152. a right control arm joint; 20. a fixed seat; 21. a fixed mount; 22. a fixing plate; 23. a fixed block; 31. an actuator connecting rod; 331. a guide base; 332. a guide bearing mounting plate; 333. a guide bearing; 334. a guide shaft; 335. a guide shaft fixing plate; 341. loading a block; 342. a loading rod; 343. a loading joint; 351. the power assembly is suspended by a mounting point joint; 361. a vertical joint; 371. and vertically loading the block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the present embodiment provides a front subframe test device, a wheel center position horizontal longitudinal (X direction) and transverse (Y direction) cyclic force load and static load bench test device, and a fixing assembly 2 simulating a vehicle body includes: the fixing seat 20, the fixing frame 21, the fixing plate 22 and the fixing block 23; the simulated wheel center force load test assembly 3 comprises: the left control arm 111, the right control arm 112, the left control arm joint 151, the right control arm joint 152, the left and right guide bases 331, the left and right guide bearing mounting plates 332, the left and right guide bearings 333, the left and right guide shafts 334, the left and right guide shaft fixing plates 335, and the actuator connecting rod 31, wherein one end of the left test assembly 3 is connected with the ball pin of the left control arm 111 through the left control arm joint 151, and the other end is connected with the servo actuator through the actuator connecting rod 31. The right test component 3 is the same as the left test component, the servo actuator is connected with the right control arm 112 and the right servo actuator (not shown) after mirror image assembly, and the servo actuator can apply horizontal circulating force load or static force load with specified loading speed according to the loading times, running frequency and force value set by a program; install left control arm 111 and right control arm 112 in the front sub vehicle frame 1 left and right sides installing support position through the bolt, reuse bolt will be preceding sub vehicle frame 1 and install in four hookup locations of the fixed subassembly 2 of the left and right automobile body of equipment, left back and right back mounting point are respectively on left and right fixed block 23, and left front mounting point corresponds preceding sub vehicle frame 1 left goat's horn sleeve pipe 12, and right front mounting point corresponds right goat's horn sleeve pipe 12 mounted position and its mirror image (not shown). The left and right vehicle body fixing components 2 are installed on a test bed by using a pressing plate and bolts; adjusting the orientation of the servo actuator to be longitudinal (X direction) or transverse (Y direction) according to the requirements of the test items; after the left control arm 111, the left control arm joint 151, the left guide assembly and the left servo actuator are assembled in sequence, the ball pins of the left control arm joint 151 and the left control arm 111 are locked, and the left actuator connecting rod 31 and the left servo actuator (not shown) are locked. The process of connecting the right control arm 112 ball pin and servo actuator to the right test assembly 3 is the same as on the left. After the test devices are combined, the servo actuator applies X-direction or Y-direction circulating force load or static force load to the wheel center position of the front subframe 1 according to a set program. The front auxiliary frame 1 and the vehicle body fixing component 2 simulate the connection form of the front auxiliary frame 1 and the vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 in the bench test process meets the stress deformation condition in the real vehicle road driving process.

As shown in fig. 3, the present embodiment provides a horizontal lateral (Y-direction) force load bench test device for a steering gear mounting point of a front subframe test device. The fixed assembly 2 imitating a vehicle body comprises: the fixed seat 20, the fixed frame 21, the fixed plate 22, the fixed block 23 and the loading block 341 are installed at the installation point of the steering device of the front subframe 1, the front subframe 1 is installed at four connection positions of the assembled left and right vehicle body fixing assemblies 2 by bolts, the left and right rear installation points are respectively arranged at the left and right fixed blocks 23, the left front installation point corresponds to the left horn sleeve 12 of the front subframe 1, and the installation position of the right front horn sleeve 12 is a mirror image of the left horn sleeve 12 (not shown). The left and right vehicle body fixing components 2 are installed on a test bed through a pressing plate and bolts, the left and right loading rods 342 are sequentially installed, the left loading connector 343 and the right loading connector 343 are installed on the left and right sides of the loading block 341, the connection mode is threaded connection, and the locking effect is achieved through nuts. The end spherical plain bearing 14 and the left and right

actuator connecting rods

31 and 31 are assembled to the servo actuator in this order, the actuator connecting rod 31 and the servo actuator are connected by screw and locked by a nut, and the end spherical plain bearing 14 and the actuator connecting rod 31 are connected by screw and locked by a nut. The servo actuator orientation is adjusted to the lateral direction (Y direction) as required by the test project, and the left side end knuckle bearing 14 and the left load joint 343 are hinged together by bolts, and the right side is the same. After the test device is combined, the servo actuator applies a transverse (Y-direction) circulating force load or a static force load to the mounting point of the steering gear of the front subframe 1 according to a set program. The front auxiliary frame 1 and the vehicle body fixing component 2 simulate the connection form of the front auxiliary frame 1 and the vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 in the bench test process meets the stress deformation condition in the real vehicle road driving process.

As shown in fig. 4, the present embodiment provides a front subframe test device, a longitudinal (Y-direction) force loading bench test device for a powertrain suspension mounting point, wherein a fixed component 2 simulating a vehicle body comprises: the fixing seat 20, the fixing frame 21, the fixing plate 22 and the fixing block 23; the test assembly 3 simulating the longitudinal load of the powertrain comprises: the power assembly suspension mounting point joint 351, the end joint bearing 14 and the actuator connecting rod; the front auxiliary frame 1 is firstly installed at four connecting positions of the assembled left and right vehicle body fixing components 2 by bolts, and then the left and right side fixing components 2 are installed on a test bed by pressing plates and bolts. The power assembly suspension mounting point connector 351 is mounted on the front auxiliary frame 1 through bolts, the end joint bearing 14 and the actuator connecting rod are sequentially mounted on the actuator, the connecting mode is threaded connection, and the back stop function is achieved through locking of nuts. According to the requirements of test items, the direction of a servo actuator is adjusted to be longitudinal, an end joint bearing 14 is hinged with a power assembly suspension mounting point joint 351 through a bolt, and after the test device is combined, the servo actuator applies longitudinal (X-direction) circulating force load or static force load to a power assembly suspension mounting point of a front subframe 1 according to a set program; the front auxiliary frame 1 and the vehicle body fixing component 2 simulate the connection form of the front auxiliary frame 1 and the vehicle body, the structural rigidity meets the rigidity requirement of the vehicle body, and the stress deformation condition of the front auxiliary frame 1 in the bench test process meets the stress deformation condition in the real vehicle road driving process.

As shown in fig. 5, the present embodiment provides a front subframe testing device, which is a stabilizer bar 13 mounting point vertical (Z-direction) circulating force load bench testing device, and the fixing assembly 2 imitating a vehicle body comprises: the fixing seat 20, the fixing frame 21, the fixing plate 22 and the fixing block 23; the test assembly 3 simulating vertical loading of a wheel comprises: the left and right vertical joints 361, the left and right end knuckle bearings 14 and the left and right vertical actuator connecting rods; the front sub-frame 1 provided with the stabilizer bar 13 is mounted at four connecting positions of the assembled left and right vehicle body fixing assemblies 2 by bolts, and the left and right vehicle body fixing assemblies 2 are mounted on a test bed by pressing plates and bolts. The left vertical joint 361 and the right vertical joint 361 are respectively hinged with the mounting holes at the tail ends of the left side and the right side of the stabilizer bar 13 assembly by bolts; the left and right end oscillating bearings 14, the left vertical actuator and the right vertical actuator are sequentially and respectively installed on the two vertical servo actuators in a threaded connection mode, and are locked by nuts to play a role in stopping. According to the requirements of test items, the direction of a servo actuator is adjusted to be vertical, a joint bearing 14 at the hinged end of a bolt and a vertical joint 361 are used, after the test device is combined, the servo actuator applies vertical (Z-direction) circulating force load to a stabilizer bar 13 of a front auxiliary frame 1 according to a set program, a front auxiliary frame 1 vehicle body fixing component 2 simulates the connection form of the front auxiliary frame 1 and a vehicle body, the structural rigidity meets the requirement of vehicle body rigidity, and the stress deformation condition of the front auxiliary frame 1 accords with the stress deformation condition in the real vehicle road driving process in the bench test process.

As shown in fig. 6, the present embodiment provides a front subframe test device, which is a static load bench test device with a stabilizer bar 13 mounting point in a vertical direction (Z direction). The fixed assembly 2 imitating a vehicle body comprises: the fixing seat 20, the fixing frame 21, the fixing plate 22 and the fixing block 23; the test assembly 3 simulating vertical loading of a wheel comprises: a vertical loading block 371, an end joint bearing 14 and a vertical actuator connecting rod 31. The front auxiliary frame 1 is installed at four connecting positions of the assembled left and right vehicle body fixing assemblies 2 through bolts, the left and right vehicle body fixing assemblies 2 are installed on a test bed through pressing plates and bolts, and the vertical loading block 371 is installed at a mounting point of the stabilizer bar 13 of the front auxiliary frame 1 through bolts. The end knuckle bearing 14 and the vertical actuator connecting rod 31 are sequentially arranged on the vertical servo actuator in a threaded connection mode, and are locked by nuts to play a role in stopping; the orientation of the servo actuator is adjusted to be vertical according to the requirements of the test project, and the knuckle bearing 14 and the vertical loading block 371 are hinged through bolts. After the test device is combined, the vertical servo actuator applies vertical (Z-direction) static load to the mounting point of the stabilizer bar 13 of the front subframe 1 according to a set program. Preceding sub vehicle frame 1 automobile body fixed subassembly 2 simulation preceding sub vehicle frame 1 and vehicle body connection form, structural rigidity satisfies the automobile body rigidity requirement, makes the stress deformation condition of preceding sub vehicle frame 1 accord with the stress deformation condition of real vehicle road in-process of traveling in the bench test process.

The utility model discloses theory of operation:

fixing base 20 and mount 21 installation, mount 21 and fixed plate 22 installation, fixed plate 22 one side and fixed block 23 installation, respectively have a fulcrum on fixed block 23 and fixing base 20, wherein the fulcrum on fixed block 23 is connected with the installation point behind the preceding sub vehicle frame, the installation point (being goat's horn sleeve 12) and the fulcrum installation on the fixing base 20 before the preceding sub vehicle frame, make preceding sub vehicle frame 1 horizontal installation on fixed subassembly 2, rethread clamp plate and bolt are installed fixed subassembly 2 on the test bench, test sub vehicle frame 1. The fixed assemblies 2 and the test assemblies 3 on the left side and the right side of the front subframe 1 are mirror images of each other, have the same structure and position, and need to be assembled in each embodiment.

In the first and second embodiments, a controlled cyclic or static force is transmitted to the actuator connecting rod 31 through the servo actuator, transmitted to the control arm 11 through the guide bearing 333 and the guide shaft 334, and transmitted to the front subframe 1 through the control arm 11. The position of the guide bearing mounting plate 332 can be changed up and down, the height of the ball stud of the control arm 11 of the front subframe 1 with different specifications can be adapted, the mounting position of the guide shaft 334 on the guide base 331 is changed, the longitudinal (X-direction) and transverse (Y-direction) stress conditions of the horizontal plane of the wheel center of the wheel are simulated, and the fatigue durability and the structural strength of the wheel center are tested.

In the third embodiment, the servo actuator transmits a circulating force to the loading rod 342, the loading rod 342 is connected with the loading block 341, the loading block 341 is installed on the mounting point of the steering device of the front subframe 1, a transverse (Y-direction) circulating force load or a static load is applied to the subframe 1 by adjusting the orientation of the servo actuator to be transverse (Y-direction), the transverse (Y-direction) stress condition of the mounting point of the steering device is simulated, and the fatigue durability and the structural strength are tested.

In the fourth embodiment, the servo actuator applies a cyclic force or a static load to the powertrain suspension mounting point joint 351 through the actuator connecting rod 31 and the end joint bearing 14, and the longitudinal (X direction) fatigue durability and the structural strength of the powertrain suspension mounting point of the front subframe 1 are tested.

In the fifth embodiment, the actuator connecting rod 31 is vertically installed on one side of the claw sleeve 12 and installed on the stabilizer bar 13, and the circulating force is transmitted to the vertical joint 361 through the servo actuator, so that the stabilizer bar 13 is stressed, a vertical fatigue test (Z direction) of the mounting point of the stabilizer bar 13 is performed, and the fatigue durability of the mounting point of the stabilizer bar 13 is tested.

In the sixth embodiment, the actuator connecting rod 31 is vertically installed on the mounting point of the stabilizer bar 13, the static load is transmitted to the vertical loading block 371 through the servo actuator, the vertical loading block is transmitted to the mounting point of the stabilizer bar 13, and the vertical strength test (in the Z direction) of the mounting point of the stabilizer bar 13 is completed by controlling the magnitude, the speed and the direction of the force.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is illustrative and explanatory of the structure of the invention, and it is intended that those skilled in the art who have the structure described herein be able to make various modifications, additions or substitutions thereto, without departing from the scope of the invention as defined in the claims.

Claims

1. The utility model provides a preceding sub vehicle frame test device which characterized in that: the front auxiliary frame is detachably mounted on the fixed assembly, and the test assembly is detachably mounted on the front auxiliary frame; fixed subassembly includes fixing base, mount, fixed plate and fixed block, the both ends of mount respectively with the fixing base with fixed plate erection joint, fixed block one side with fixed plate demountable installation, the opposite side of fixed block with preceding sub vehicle frame demountable installation, experimental subassembly includes the actuator connecting rod.

2. The front subframe testing device of claim 1, wherein: the two sides of the front auxiliary frame are respectively provided with a fixing component, and the two fixing components are arranged in a mirror image mode by taking the center of the front auxiliary frame as a symmetrical plane.

3. The front subframe testing device of claim 2, wherein: preceding sub vehicle frame includes control arm and stabilizer bar, one side is equipped with the control arm and connects on the control arm, the terminal bulb round pin of control arm with the control arm joint is articulated, control arm demountable installation is in preceding sub vehicle is last.

4. The front subframe testing device of claim 3, wherein: the test assembly comprises a guide base, a guide bearing mounting plate and a guide bearing, wherein the guide bearing mounting plate is fixed on the guide base, the guide bearing is fixed on the guide bearing mounting plate, the guide bearing penetrates through the guide shaft, two ends of the guide shaft are respectively provided with a guide shaft fixing plate, the guide shaft fixing plate is used for fixing the guide shaft, the guide shaft is close to one side of a guide shaft fixing plate of the front auxiliary frame, the control arm joint is hinged and is far away from another guide shaft fixing plate of the front auxiliary frame, and the actuator connecting rod is detachably mounted.

5. The front subframe testing device of claim 3, wherein: the test assembly comprises a loading block and a loading joint, the loading block is detachably mounted on the front auxiliary frame, two ends of the loading block are respectively provided with a loading rod, one end of the loading rod is fixedly connected with the loading block, the other end of the loading rod is respectively connected with the loading joint, and the loading joint is connected with the actuator connecting rod through a joint bearing.

6. The front subframe testing device of claim 3, wherein: the test device includes power assembly suspension mounting point connects, power assembly suspension mounting point connects demountable installation in preceding sub vehicle frame is last, power assembly suspension mounting point connect through end joint bearing with the actuator connecting rod is articulated.

7. The front subframe testing device of claim 3, wherein: the testing device comprises a vertical joint, one end of the vertical joint is hinged to the stabilizer bar, and the other end of the vertical joint is hinged to the actuator connecting rod through an end joint bearing.

8. The front subframe testing device of claim 3, wherein: the test device comprises a vertical loading block, wherein the vertical loading block is located on a mounting point of the stabilizer bar, the vertical loading block is detachably mounted on the front auxiliary frame, and the vertical loading block is hinged to the actuator connecting rod.