CN117969315B - Truck radiator lightweight fixed bolster intensity detection equipment - Google Patents

Abstract

The invention relates to the technical field of strength detection, in particular to strength detection equipment for a lightweight fixed support of a truck radiator; the U-shaped plate structure comprises a base, wherein U-shaped plates are symmetrically arranged on the upper end face of the base, top plates are jointly arranged on the upper end faces of the two U-shaped plates, sliding grooves penetrating through the corresponding two vertical sections are formed in the U-shaped plates, sliding plates are respectively arranged in the sliding grooves in a sliding manner, supporting plates are arranged between the two sliding plates which are opposite in front and back, notches are formed in the upper end and the lower end of each supporting plate, a knocking mechanism is arranged between the two supporting plates, a fixing mechanism is arranged on each supporting plate, and driving mechanisms are jointly arranged on the rear sides of the two U-shaped plates; according to the invention, the upper part and the lower part of the fixed support are impacted to generate vibration, so that the vibration and impact of the truck in the running process are simulated, the performance of the fixed support in actual use is evaluated, the reliability and the safety of the fixed support are ensured, and the performance of the fixed support under different conditions is detected more comprehensively by changing the knocking force and the loading force.

Description

Truck radiator lightweight fixed bolster intensity detection equipment

Technical Field

The invention relates to the technical field of strength detection, in particular to strength detection equipment for a lightweight fixed support of a truck radiator.

Background

The truck radiator lightweight fixed support is of a square structure, the radiator is installed in the middle of the truck radiator lightweight fixed support, and is made of lightweight and high-strength materials (such as aluminum alloy and magnesium alloy) generally, so that the weight of the whole radiating system is reduced, the truck radiator lightweight fixed support can improve fuel economy, and plays a supporting and protecting role in collision, so that the position stability of the radiator is guaranteed, and the normal work of the radiator is guaranteed.

In order to ensure that the fixing support stably supports the radiator and ensure that the fixing support has enough load capacity and good durability, the fixing support is required to be subjected to strength performance inspection, a common detection mode is to press the fixing support through a clamp, and whether deformation, displacement or crack and the like of the fixing support occur is observed in the pressing process. The detection mode is single, the strength performance of the fixed bracket is evaluated only by applying static pressure, and the fixed bracket of the truck radiator can be subjected to periodic vibration in actual use, so that the existing detection mode can not simulate the dynamic change of the fixed bracket in actual use, thereby affecting the accuracy of strength detection.

Disclosure of Invention

In view of the above problems, an embodiment of the present application provides a strength detection device for a lightweight fixing bracket of a truck radiator, so as to solve the above-mentioned technical problems.

In order to achieve the above object, the embodiment of the present application provides the following technical solutions: the embodiment of the application provides a truck radiator lightweight fixed bracket strength detection device, which comprises a base; the U-shaped plates are symmetrically arranged on the left and right sides of the upper end face of the base, the top plates are jointly arranged on the upper end faces of the two U-shaped plates, sliding grooves penetrating through the corresponding two vertical sections are formed in the U-shaped plates, a sliding plate is arranged in each sliding groove in a sliding mode, a supporting plate is arranged between the two sliding plates which are opposite front and back, notches are formed in the upper end and the lower end of the supporting plate, a knocking mechanism for knocking the fixing support is arranged between the two supporting plates, a fixing mechanism for fixing the fixing support is arranged on the supporting plate, and a driving mechanism for driving the supporting plate to move up and down is jointly arranged on the rear sides of the two U-shaped plates.

The knocking mechanism comprises a torsion spring rod, a connecting rod is rotatably arranged in the notch through the torsion spring rod, an impact plate is arranged between the left connecting rod and the right connecting rod, the impact plate is of a U-shaped structure, sliding ways are arranged on the front inner wall and the rear inner wall of the impact plate, the connecting rod is in sliding fit with the sliding ways through a roll shaft, an actuating piece for driving the connecting rod to rotate is further arranged on the torsion spring rod, and an adjusting piece for changing the rotating angle of the connecting rod is arranged on one side of the connecting rod, which is far away from the corresponding connecting plate.

As the preferred scheme, the executive component include the driving lever, rotate on the torsion spring pole and install the driving lever, and install torsion spring between driving lever and the backup pad, respectively install the extension board around the driving lever both sides, and torsion spring pole rotates and run through the extension board, install the cylinder between two extension boards, one side that the connecting rod is close to the stopper is contradicted with the cylinder, one side that the driving lever kept away from the connecting rod just is located from down upwards even slidable mounting to have the barrier plate between two vertical sections of U template, and one of them barrier plate is contradicted with the driving lever.

As the preferable scheme, the regulating part comprises a push-pull rod, one side of the blocking plate, which is far away from the supporting plate, is hinged with the push-pull rod, one side of the push-pull rod, which is far away from the blocking plate, is hinged with a driving plate jointly, the driving plates are slidably arranged in the U-shaped plates, the upper ends of the two driving plates are slidably penetrated through the top plate and then are provided with bearing plates jointly, the top plate is rotatably provided with a screw rod through a shaft plate, and the screw rod is in threaded connection with the bearing plates.

As the preferred scheme, fixed establishment include the stopper, the relative face of two backup pads respectively distributes about being provided with two stoppers, the fixed slot with fixed bolster complex is respectively offered to the relative face of two stoppers that are relative from top to bottom, the slider is respectively installed to the opposite side of two stoppers that are located the top, and slider slidable mounting is in the notch that corresponds, the stopper that is located the below and the backup pad fixed connection that corresponds, install the extension spring between the lower terminal surface of slider and the notch diapire that corresponds, the guide arm is still installed to the lower terminal surface of slider, the guide arm pass behind the extension spring with backup pad sliding connection, be provided with the load spare on the stopper that is located the top.

As the preferred scheme, actuating mechanism include the connecting plate, install the connecting plate jointly on two slide that are located the rear side, a rectangular piece is respectively installed to the left and right sides terminal surface of connecting plate, and rectangular piece and the U template sliding connection that corresponds, just correspond respectively with two rectangular piece corresponding positions between roof and the base and be provided with reciprocal lead screw, guide bar, and guide bar and the rectangular piece sliding fit that corresponds, reciprocal lead screw rotates with base, roof to be connected, and reciprocal lead screw and the rectangular piece threaded connection that corresponds.

As the preferred scheme, the load piece include the support, the front and back terminal surface of the stopper that is located the top respectively installs the support, the rope is installed to the terminal surface under the support, the electromagnetic plate is installed jointly to the lower terminal surface of rope, piles up on the base of electromagnetic plate below and has a plurality of balancing weights, connecting plate and U template are magnetism metal, are provided with the locating part between electromagnetic plate and the balancing weights.

As the preferred scheme, the locating part include the through-hole, the through-hole has been seted up at the middle part of balancing weight, the hole has been seted up with the position that the through-hole corresponds on the base, the terminal surface mid-mounting has the spliced pole down of electromagnetic plate, the spliced pole lower extreme slides and runs through a plurality of through-holes to in the hole, the spacing hole has been seted up with the position that the balancing weight corresponds one by one on the spliced pole, the round hole has been seted up with the position that the spacing hole corresponds on the balancing weight, one of them round hole slidable mounting has with spacing hole complex spacing post, the terminal surface is installed the magnetic path before the spacing post, the pull ring is installed to the terminal surface before the magnetic path.

The above technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. the knocking mechanism drives the fixed support to knock against the upper part and the lower part of the fixed support in the up-and-down reciprocating movement process, vibration is generated, the blocking range of the blocking plate to the deflector rod can be changed by moving the blocking plate, so that the rotation angle of the deflector rod is changed, the torsion strength of the torsion spring rod is changed, the impact strength of the torsion spring rod to the fixed support is changed by the knocking plate when the torsion spring rod is released, the knocking strength is controlled, the actual use situation is more similar, the vibration and the impact of a truck in the driving process can be more truly simulated, the performance of the fixed support in the actual use can be more accurately evaluated, and the reliability and the safety of products are ensured.

2. According to the fixing mechanism provided by the invention, the size of the load borne by the fixing support is changed by moving the matching position of the limiting column and the round hole, and the fixing support generates vibration influence under different load conditions, so that the performance of the support under different conditions can be more comprehensively detected by changing the knocking force and the load force.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present application.

Fig. 2 is a schematic view of the second view structure of fig. 1.

FIG. 3 is a schematic view of the U-shaped plate of FIG. 1, with the fixing brackets omitted.

Fig. 4 is a cross-sectional view of the present application.

Fig. 5 is an exploded view of a part of the structure of the stopper of the present application.

Fig. 6 is a schematic structural view of a fixing mechanism of the present application.

Reference numerals: 10. a base; 11. a U-shaped plate; 12. a top plate; 13. a slide plate; 14. a support plate; 15. a notch; 2. a knocking mechanism; 21. torsion spring rods; 22. a connecting rod; 23. an impingement plate; 24. an actuator; 240. a deflector rod; 241. a support plate; 242. a column; 243. a blocking plate; 25. an adjusting member; 250. a push-pull rod; 251. a driving plate; 252. a receiving plate; 253. a screw; 3. a fixing mechanism; 30. a limiting block; 31. a tension spring; 32. a guide rod; 5.a load member; 50. a support; 51. a rope; 52. an electromagnetic plate; 53. balancing weight; 6. a limiting piece; 60. a shaft post; 61. a limiting hole; 62. a round hole; 63. a limit column; 64. a magnetic block; 4. a driving mechanism; 40. a connecting plate; 41. rectangular blocks; 42. a reciprocating screw rod; 43. a guide rod.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1,2 and 3, a truck radiator lightweight fixed bracket strength detection apparatus includes a base 10; the U-shaped plate 11 is installed to the bilateral symmetry of up end of base 10, roof 12 is installed jointly to the up end of two U-shaped plates 11, set up the spout that runs through two vertical sections that correspond on the U-shaped plate 11, each slidable mounting has a slide 13 in the spout, install backup pad 14 between two slide 13 that the front and back are relative, notch 15 has all been seted up at the upper and lower both ends of backup pad 14, install the knocking mechanism 2 that is used for beating the fixed bolster between two backup pads 14, be provided with the fixed establishment 3 that is used for fixed bolster on the backup pad 14, the rear side of two U-shaped plates 11 is provided with the actuating mechanism 4 that is used for driving backup pad 14 reciprocates jointly.

As shown in fig. 1, 3 and 4, the fixing mechanism 3 includes a limiting block 30, two limiting blocks 30 are disposed on opposite surfaces of two supporting plates 14 in a vertically distributed manner, fixing grooves matched with the fixing brackets are formed on opposite surfaces of the two limiting blocks 30, sliding blocks are mounted on opposite sides of the two limiting blocks 30 located above, the sliding blocks are slidably mounted in corresponding notches 15, the limiting blocks 30 located below are fixedly connected with the corresponding supporting plates 14, tension springs 31 are mounted between lower end surfaces of the sliding blocks and bottom walls of the corresponding notches 15, guide rods 32 are mounted on lower end surfaces of the sliding blocks, the guide rods 32 penetrate through the tension springs 31 and are slidably connected with the supporting plates 14, and load pieces 5 are disposed on the limiting blocks 30 located above.

As shown in fig. 1 and 2, the driving mechanism 4 includes a connecting plate 40, two sliding plates 13 at the rear side are mounted with the connecting plate 40 together, the left and right end surfaces of the connecting plate 40 are mounted with a rectangular block 41, the rectangular block 41 is slidably connected with the corresponding u-shaped plate 11, a reciprocating screw 42 and a guide rod 43 are correspondingly arranged between the top plate 12 and the base 10 and at positions corresponding to the two rectangular blocks 41, the guide rod 43 is slidably matched with the corresponding rectangular block 41, the reciprocating screw 42 is rotatably connected with the base 10 and the top plate 12, and the reciprocating screw 42 is in threaded connection with the corresponding rectangular block 41.

As shown in fig. 2, 3 and 5, the load member 5 includes a support 50, the front and rear end surfaces of the upper limiting block 30 are respectively provided with the support 50, the lower end surface of the support 50 is provided with a rope 51, the lower end surfaces of the rope 51 are jointly provided with an electromagnetic plate 52, a plurality of balancing weights 53 are stacked on the base 10 below the electromagnetic plate 52, the balancing weights 53, the connecting plate 40 and the U-shaped plate 11 are all made of magnetic metal, and a limiting member 6 is arranged between the electromagnetic plate 52 and the balancing weights 53.

As shown in fig. 3, 4 and 5, the limiting member 6 includes a through hole, the middle of the balancing weight 53 is provided with a through hole, the base 10 is provided with a hole at a position corresponding to the through hole, the middle of the lower end surface of the electromagnetic plate 52 is provided with a shaft post 60, the lower end of the shaft post 60 slides through the plurality of through holes to the hole, the shaft post 60 is provided with limiting holes 61 at positions corresponding to the balancing weight 53 one by one, the balancing weight 53 is provided with round holes 62 at positions corresponding to the limiting holes 61, one of the round holes 62 is provided with a limiting post 63 which is matched with the limiting hole 61 in a sliding manner, the front end surface of the limiting post 63 is provided with a magnetic block 64, and the front end surface of the magnetic block 64 is provided with a pull ring. When the limit posts 63 are not used, the limit posts 63 can be adsorbed on the U-shaped plate 11 by the magnet blocks 64 for taking.

During specific work, the upper limiting block 30 is moved upwards manually while the tension spring 31 is stretched, then the fixed support is placed in the fixed groove of the lower limiting block 30, then the upper limiting block 30 is loosened, the upper limiting block 30 moves downwards under the action of the tension spring 31, the inner wall of the fixed groove of the upper limiting block 30 is attached to the fixed support to limit the movement of the fixed support, then the electromagnetic plate 52 is turned manually, the electromagnetic plate 52 is attached to the connecting plate 40, at the moment, the electromagnetic plate 52 is electrified and adsorbed on the connecting plate 40, then an external motor arranged on the top plate 12 drives the reciprocating screw rod 42 to rotate, the reciprocating screw rod 42 rotates to drive the corresponding rectangular block 41 to reciprocate up and down, and the rectangular block 41 drives the two supporting plates 14 and the fixed support fixed by the fixed mechanism 3 to reciprocate up and down through the connecting plate 40 and the sliding plate 13; after no load and multiple knocking vibration, observing whether the fixed support is deformed or cracked, then switching off the electromagnetic plate 52 to release the adsorption to the connecting plate 40, separating the electromagnetic plate 52 from the connecting plate 40, adsorbing the lower end surface of the electromagnetic plate 52 and the balancing weight 53 positioned at the uppermost part, inserting the limiting column 63 into the round hole 62 of the corresponding balancing weight 53, penetrating the limiting column 63 through the corresponding limiting hole 61, continuously driving the fixed support to move upwards for a certain distance, so that the lower end surface of the lifted balancing weight 53 is far away from the balancing weight 53 below the fixed support, and observing the state of the fixed support under load and the change of the fixed support under the load condition after the knocking vibration by the knocking mechanism 2; the limiting column 63 is sequentially inserted into the next balancing weight 53 and matched with the shaft column 60 to increase the load borne by the fixing support, so that the performance of the fixing support under different loads and the performance of the fixing support after knocking vibration are detected, the actual use scene of the fixing support is simulated, the dynamic performance of the fixing support is detected, the strength limit of the fixing support is determined, the stress distribution of the fixing support is analyzed, and the fatigue life of the fixing support is predicted.

As shown in fig. 2, 3 and 4, the striking mechanism 2 includes a torsion spring rod 21, a connecting rod 22 is rotatably mounted in the slot 15 through the torsion spring rod 21, a striking plate 23 is disposed between two opposite connecting rods 22, the striking plate 23 is in a u-shaped structure, two opposite inner walls of the striking plate 23 are provided with sliding tracks, the connecting rods 22 are slidably matched with the sliding tracks through roller shafts, an actuating member 24 for driving the connecting rods 22 to rotate is further disposed on the torsion spring rod 21, and an adjusting member 25 for changing the rotation angle of the connecting rods 22 is disposed on one side of the connecting rods 22 away from the corresponding connecting plate 40.

As shown in fig. 3, 4, 5 and 6, the actuating member 24 includes a shift lever 240, a shift lever 240 is rotatably mounted on the torsion spring rod 21, a torsion spring is mounted between the shift lever 240 and the support plate 14, support plates 241 are respectively mounted on front and rear sides of the shift lever 240, the torsion spring rod 21 rotates to penetrate through the support plates 241, a column 242 is mounted between the two support plates 241, one side of the connecting rod 22, which is close to the limiting block 30, is abutted against the column 242, a blocking plate 243 is uniformly slidably mounted between two vertical sections of the u-shaped plate 11 from bottom to top on one side of the shift lever 240, which is far from the connecting rod 22, and one blocking plate 243 is abutted against the shift lever 240.

As shown in fig. 2, 3 and 4, the adjusting member 25 includes a push-pull rod 250, one side of the blocking plate 243 far away from the supporting plate 14 is hinged with the push-pull rod 250, one side of the push-pull rod 250 far away from the blocking plate 243 is hinged with a driving plate 251, the driving plates 251 are slidably mounted in the u-shaped plate 11, the upper ends of the two driving plates 251 slidably penetrate through the top plate 12, and then are mounted with a bearing plate 252, the top plate 12 is rotatably mounted with a screw 253 via a shaft plate, and the screw 253 is in threaded connection with the bearing plate 252.

When the driving mechanism 4 specifically works, in the process that the driving mechanism 4 drives the supporting plate 14 and the fixed support to move upwards, the upper deflector rod 240 collides with the blocking plate 243, along with the upward movement of the supporting plate 14, one end of the deflector rod 240, which is far away from the connecting rod 22, rotates downwards, the corresponding column 242 collides with the connecting rod 22, and drives one end of the connecting rod 22, which is far away from the deflector rod 240, to rotate upwards, simultaneously twists the corresponding torsion spring rod 21, and the corresponding striking plate 23 moves upwards to be far away from the fixed support, after the deflector rod 240 does not collide with the blocking plate 243 any more, the connecting rod 22 pushes the corresponding striking plate 23 to collide with the fixed support under the action of the torsion spring rod 21 so as to strike the upper part of the fixed support, so that vibration is generated, and along with the upward movement of the supporting plate 14, the upper deflector rod 240 collides with the blocking plate 243 in sequence, the upper part of the fixed support is impacted many times so as to simulate the influence of vibration on the fixed support in actual use; in the process that the lower deflector rod 240 moves up along with the support plate 14, one end of the lower deflector rod 240 away from the corresponding connecting rod 22 rotates downwards, the corresponding column 242 rotates away from the connecting rod 22, normal upward movement of the support plate 14 is ensured, and after the lower deflector rod 240 is separated from the blocking plate 243, the deflector rod 240 rotates and resets under the action of the torsion spring.

When the supporting plate 14 is driven to move downwards, the upper deflector 240 collides with the blocking plate 243 to rotate, the corresponding column 242 is far away from the corresponding connecting rod 22 so as to prevent the supporting plate 14 from moving downwards, the lower deflector 240 collides with the blocking plate 243 to rotate, the lower deflector 240 pushes the connecting rod 22 to rotate through the corresponding column 242, the lower connecting rod 22 drives the corresponding striking plate 23 to move downwards, and after the lower deflector 240 moves downwards along with the supporting plate 14 and breaks away from the blocking plate 243, the lower striking plate 23 pushes the lower part of the fixed bracket through the corresponding connecting rod 22 to strike, so that the fixed bracket vibrates, and the upper part and the lower part of the fixed bracket vibrate repeatedly along with the up-down reciprocating movement of the supporting plate 14 and the fixed bracket. In addition, when the external motor No. two mounted on the shaft plate is used for driving the screw 253 to operate, the external motor No. two drives the screw 253 to rotate, the screw 253 drives the receiving plate 252 to move downwards, so that the two driving plates 251 move downwards, the driving plates 251 push the blocking plates 243 to move towards the corresponding supporting plates 14 through the push-pull rods 250, so as to increase the blocking range of the blocking plates 243 to the deflector rod 240, thereby increasing the rotation angle of the deflector rod 240, further increasing the torsion force of the torsion spring rod 21, and increasing the impact force of the impact plate 23 to the fixed support when the torsion spring rod 21 is released.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims (5)

1. The utility model provides a truck radiator lightweight fixed bolster intensity detection equipment, includes base (10); the method is characterized in that: the U-shaped plates (11) are symmetrically arranged on the upper end face of the base (10) left and right, the top plates (12) are jointly arranged on the upper end faces of the two U-shaped plates (11), sliding grooves penetrating through the corresponding two vertical sections are formed in the U-shaped plates (11), one sliding plate (13) is respectively and slidably arranged in each sliding groove, a supporting plate (14) is arranged between the two sliding plates (13) which are opposite front and back, notches (15) are formed in the upper end and the lower end of each supporting plate (14), a knocking mechanism (2) for knocking the fixed support is arranged between the two supporting plates (14), a fixing mechanism (3) for fixing the fixed support is arranged on each supporting plate (14), and a driving mechanism (4) for driving the supporting plates (14) to move up and down is jointly arranged on the rear sides of the two U-shaped plates (11); wherein:

the knocking mechanism (2) comprises a torsion spring rod (21), a connecting rod (22) is rotatably arranged in the notch (15) through the torsion spring rod (21), a knocking plate (23) is arranged between two opposite connecting rods (22) on the left and right, the knocking plate (23) is of a U-shaped structure, sliding ways are arranged on two opposite inner walls of the knocking plate (23), the connecting rods (22) are in sliding fit with the sliding ways through roller shafts, an executing piece (24) for driving the connecting rods (22) to rotate is further arranged on the torsion spring rod (21), and an adjusting piece (25) for changing the rotating angle of the connecting rods (22) is arranged on one side, away from the corresponding connecting plate (40), of the connecting rods (22);

The actuating piece (24) comprises a deflector rod (240), the deflector rod (240) is rotatably arranged on the torsion spring rod (21), a torsion spring is arranged between the deflector rod (240) and the supporting plate (14), support plates (241) are respectively arranged on the front side and the rear side of the deflector rod (240), the torsion spring rod (21) rotates to penetrate through the support plates (241), a column body (242) is arranged between the two support plates (241), one side of the connecting rod (22) close to the limiting block (30) is in collision with the column body (242), one side of the deflector rod (240) far away from the connecting rod (22) is arranged between the two vertical sections of the U-shaped plate (11), a blocking plate (243) is uniformly and slidably arranged from bottom to top, and one of the blocking plates (243) is in collision with the deflector rod (240);

the adjusting piece (25) comprises a push-pull rod (250), one side, far away from the supporting plate (14), of the blocking plate (243) is hinged with the push-pull rod (250), one side, far away from the blocking plate (243), of the push-pull rod (250) is jointly hinged with a driving plate (251), the driving plate (251) is slidably mounted in the U-shaped plate (11), the upper ends of the two driving plates (251) slidably penetrate through the top plate (12) and then are jointly mounted with a bearing plate (252), a screw rod (253) is rotatably mounted on the top plate (12) through a shaft plate, and the screw rod (253) is in threaded connection with the bearing plate (252).

2. The truck radiator lightweight fixed bolster strength detection device of claim 1, wherein: the fixing mechanism (3) comprises limiting blocks (30), two limiting blocks (30) are respectively arranged on opposite surfaces of two supporting plates (14) in an up-down distribution mode, fixing grooves matched with the fixing supports are respectively formed in opposite surfaces of the two limiting blocks (30) which are opposite to each other, sliding blocks are respectively arranged on opposite sides of the two limiting blocks (30) which are located above, the sliding blocks are slidably arranged in corresponding notches (15), the limiting blocks (30) which are located below are fixedly connected with the corresponding supporting plates (14), tension springs (31) are arranged between the lower end surfaces of the sliding blocks and the bottom walls of the corresponding notches (15), guide rods (32) are further arranged on the lower end surfaces of the sliding blocks, the guide rods (32) penetrate through the tension springs (31) and then are slidably connected with the supporting plates (14), and load pieces (5) are arranged on the limiting blocks (30) which are located above.

3. The truck radiator lightweight fixed bolster strength detection device of claim 1, wherein: the driving mechanism (4) comprises a connecting plate (40), wherein the connecting plate (40) is jointly installed on two sliding plates (13) at the rear side, a rectangular block (41) is respectively installed on the left end face and the right end face of the connecting plate (40), the rectangular block (41) is in sliding connection with a corresponding U-shaped plate (11), a reciprocating screw rod (42) and a guide rod (43) are respectively and correspondingly arranged between a top plate (12) and a base (10) and at positions corresponding to the two rectangular blocks (41), the guide rod (43) is in sliding fit with the corresponding rectangular block (41), the reciprocating screw rod (42) is rotationally connected with the base (10) and the top plate (12), and the reciprocating screw rod (42) is in threaded connection with the corresponding rectangular block (41).

4. The truck radiator lightweight fixed bolster strength detection device of claim 2, wherein: the load piece (5) include support (50), the front and back terminal surface of stopper (30) that are located the top respectively installs support (50), rope (51) are installed to terminal surface under support (50), electromagnetic plate (52) are installed jointly to the lower terminal surface of rope (51), pile up on base (10) of electromagnetic plate (52) below and have a plurality of balancing weights (53), connecting plate (40) and U template (11) are magnetic metal, be provided with spacing piece (6) between electromagnetic plate (52) and balancing weights (53).

5. The truck radiator lightweight fixed bolster strength testing apparatus of claim 4, wherein: the limiting piece (6) comprises a through hole, the through hole is formed in the middle of the balancing weight (53), a hole is formed in the base (10) at the position corresponding to the through hole, a shaft post (60) is mounted in the middle of the lower end face of the electromagnetic plate (52), the lower end of the shaft post (60) penetrates through the through holes in a sliding mode into the holes, limiting holes (61) are formed in the positions, corresponding to the balancing weight (53), of the shaft post (60), round holes (62) are formed in the positions, corresponding to the limiting holes (61), of the balancing weight (53), limiting posts (63) matched with the limiting holes (61) are mounted in the inner sliding mode in one round hole (62), a magnetic block (64) is mounted on the front end face of the limiting post (63), and a pull ring is mounted on the front end face of the magnetic block (64).