CN217980794U - Test bench for protective device of commercial vehicle - Google Patents
Test bench for protective device of commercial vehicle Download PDFInfo
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- CN217980794U CN217980794U CN202222208148.7U CN202222208148U CN217980794U CN 217980794 U CN217980794 U CN 217980794U CN 202222208148 U CN202222208148 U CN 202222208148U CN 217980794 U CN217980794 U CN 217980794U
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Abstract
A test bench for a protective device of a commercial vehicle comprises a base, a horizontal moving mechanism, a lifting mechanism, a horizontal moving frame and a loading mechanism; the base is fixed in the foundation and used for bearing the reverse force of the loading force; the horizontal moving frame is arranged on the base in a sliding manner; the horizontal moving mechanism is arranged on the horizontal moving frame so as to drive the horizontal moving frame to horizontally move on the base; the lifting mechanism is arranged on the horizontal moving frame and used for driving the connected loading mechanism to vertically lift; and the loading mechanism is connected with a hydraulic system outside the test bed. The utility model discloses can adjust the level and the vertical position of loading point as required to provide sufficient loading force, satisfy the requirement to loading position and loading force of commercial vehicle protector in the biggest bearing load and deflection are experimental.
Description
Technical Field
The utility model belongs to special automobile test equipment field, concretely relates to operating vehicle protector test bench.
Background
The rear and rear underbody guards, side guards are required by the operating vehicle in accordance with the legal regulations, and the requirements for the guards are set, including the requirements for stipulating the geometry, mounting height, strength, energy absorption, etc. of the guards.
The loading mechanism position adjustment of the current protector test bench is inconvenient, so that the loading height and the loading horizontal position are difficult to meet the test requirements, and the test requirements of different vehicle types cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a test bench for a protective device of a commercial vehicle, which can adjust the horizontal and vertical positions of loading points as required to meet the test requirements of different vehicle types; and according to the protective device to be tested, the loading force meeting the test requirement can be provided, and the requirements of the rear part and the rear lower part protective device of the commercial vehicle on the loading position and the loading force in the maximum load bearing and deformation test are met.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a test bench for a protective device of a commercial vehicle comprises a base, a horizontal moving mechanism, a lifting mechanism, a horizontal moving frame and a loading mechanism; the base is fixed in the foundation and used for bearing the reverse force of the loading force; the horizontal moving frame is arranged on the base in a sliding manner; the horizontal moving mechanism is arranged on the horizontal moving frame so as to drive the horizontal moving frame to horizontally move on the base; the lifting mechanism is arranged on the horizontal moving frame and used for driving the connected loading mechanism to vertically lift; and the loading mechanism is connected with a hydraulic system outside the test bed.
The horizontal moving mechanism comprises a horizontal driving motor and a gear arranged on an output shaft of the motor, a sinking area is arranged on the upper surface of the base, and a rack matched with the gear is fixedly arranged in the sinking area.
The rotating shaft of the gear is vertically arranged, and the rack is installed on the side wall of the sinking area.
The base is provided with a horizontal moving guide rail, and the bottom of the horizontal moving frame is in sliding fit with the horizontal moving guide rail.
The horizontal moving guide rails are provided with two guide rails which are fixed on two sides of the subsidence area in parallel, notch grooves extending along the length direction of the horizontal moving guide rails are formed in the inner sides of the horizontal moving guide rails, guide grooves with side openings are formed by the notch grooves and the upper surface of the base in a surrounding mode, a guide block extending into the guide grooves is arranged at the bottom of the horizontal moving frame, and the guide block is in sliding fit with the guide grooves.
A plurality of T-shaped grooves are formed in the base, and the horizontal moving guide rail is fixed through T-shaped bolts arranged in the T-shaped grooves.
The lifting mechanism is a screw rod lifting mechanism, and a nut in the screw rod lifting mechanism is connected with the loading mechanism to drive the loading mechanism to vertically lift.
The horizontal moving frame is also provided with a lifting guide rail, and the loading mechanism is connected with the lifting guide rail in a sliding manner.
And a loading oil cylinder of the loading mechanism is connected with the hydraulic system through an oil pipe and an electromagnetic proportional overflow valve.
And a force sensor is arranged between the loading oil cylinder and the loading head of the loading mechanism.
The utility model has the advantages that: the utility model can flexibly adjust the horizontal position and the vertical position of the loading mechanism, the adjustment of the horizontal position is realized by the meshing of the gear and the rack, the adjustment of the vertical position is realized by the screw rod lifting mechanism, the position adjusting precision is higher, and the accuracy of the test result can be improved; the utility model discloses utilize loading cylinder cooperation electromagnetism proportional overflow valve to realize the adjustment of loading force to cooperation force sensor can the accurate control loading force, satisfies different grade type protector's test requirement.
The utility model arranges the gear and the rack in the sinking area of the base, and the sliding fit of the horizontal moving frame and the horizontal moving guide rail is positioned on the upper surface of the base, thus ensuring the stability of horizontal movement; and the sliding of the guide blocks on the two sides of the horizontal moving frame in the corresponding guide grooves can enhance the stability of the horizontal moving frame in the test.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a right side view of the present invention;
fig. 3 is a left side view of the present invention;
the labels in the figure are: 1. the device comprises a base, 2, a horizontal driving motor, 3, a lifting mechanism, 4, a horizontal moving frame, 5, a horizontal moving guide rail, 6, a loading mechanism, 601, a loading support, 602, a loading oil cylinder, 603, a loading head, 604, a force sensor, 605, a guide rod, 7, an operation box, 8, a rack, 9, a gear, 10, a sinking area, 11 and a guide block.
Detailed Description
The following detailed description of the present invention is provided with reference to the accompanying drawings and examples, but not to be construed as limiting the present invention in any way.
As shown in the figure, the test bed for the protective device of the commercial vehicle is used for testing the maximum bearing load and the deformation of the rear and rear lower protective devices or the side protective devices of the commercial vehicle, in particular to a dangerous goods road transportation commercial vehicle.
The test bed comprises a base 1, a horizontal moving mechanism, a lifting mechanism 3, a horizontal moving frame 4, a horizontal moving guide rail 5 and a loading mechanism 6.
The base 1 is a cast iron flat base, a plurality of parallel T-shaped grooves are arranged on the upper surface of the base at intervals, and the base 1 is fixedly installed in a foundation through grouting materials, for example, fixed in a concrete floor, so as to bear the reverse force of a loading force in the test process.
The upper surface of the base 1 is further provided with a sunken sinking zone 10, the sinking zone 10 extends along the length direction of the base 1, the area of the sinking zone 10 is smaller than that of the upper surface of the base 1, and the plurality of T-shaped grooves are distributed on two sides of the sinking zone 10.
The horizontal movement guide rails 5 are two, the two horizontal movement guide rails 5 are fixed on two sides of the subsidence area 10 by T-shaped bolts in the T-shaped grooves, notch grooves extending along the length direction of the horizontal movement guide rails 5 are formed in the inner sides of the horizontal movement guide rails 5, guide grooves with side openings are formed by the notch grooves and the upper surface of the base 1 in a surrounding mode, guide blocks 11 capable of extending into the guide grooves are arranged at the bottom of the horizontal movement frame 4, sliding friction is formed between the upper surface and the lower surface of each guide block 11 and the upper surface and the lower surface of each guide groove, and the guide blocks 11 on two sides of the bottom of the horizontal movement frame 4 slide horizontally along the guide grooves under the driving of driving force.
The guide blocks 11 at the front side and the rear side of the bottom of the horizontal moving frame 4 are arranged in the guide grooves of the horizontal moving guide rail 5 in a sliding manner, so that not only can guide the movement of the horizontal moving frame 4, but also enough support can be provided for the horizontal moving frame 4 in the loading direction so as to bear the reverse force of the loading force in the test process. The horizontal moving guide rail 5 is fixed on the base through a T-shaped bolt in a T-shaped groove, and the fixing strength of the horizontal moving guide rail 5 can be enhanced, so that the horizontal moving guide rail 5 can bear the reverse force of the loading force in the test process.
The lower part of horizontal migration frame 4 is fixed and is provided with horizontal drive motor 2, is connected with gear 9 through the parallel key on horizontal drive motor 2's the output shaft, and gear 9 stretches into downwards sink district 10 in, gear 9's rotation axis is vertical direction fixed mounting rack 8 on sink district 10's the inner wall, gear 9 and rack 8 mesh, after horizontal drive motor 2 drive gear 9 rotatory, gear 9 rolled along rack 8, drive horizontal migration frame 4 horizontal slip.
The horizontal moving frame 4 is provided with the lifting mechanism 3, and the loading mechanism 6 is connected with the lifting part of the lifting mechanism 3, so that the height of the loading mechanism 6 is adjusted. The lifting mechanism 3 adopts a lead screw lifting mechanism, a lead screw of the lead screw lifting mechanism is vertically arranged, two ends of the lead screw are rotatably supported on the horizontal moving frame 4, the top end of the lead screw is in transmission connection with an output shaft of a lifting motor, the lifting motor drives the lead screw to rotate, a nut installed on the lead screw is connected with the loading mechanism 6, and the rotation of the lead screw drives the loading mechanism 6 to vertically lift through the nut so as to adjust the height position of the loading mechanism 6.
The screw lifting mechanism is a worm gear screw mechanism or a ball screw mechanism.
In order to ensure the stability of the lifting process of the loading mechanism 6, two lifting guide rails are further arranged on the horizontal moving frame 4, and the loading mechanism 6 is connected with the lifting guide rails in a sliding manner.
The loading mechanism 6 is connected with a hydraulic system arranged outside the test bed, the loading mechanism 6 comprises a loading support 601, a loading oil cylinder 602, a loading head 603 and a force sensor 604, the loading support 601 is connected with a lifting guide rail in a sliding manner and is also connected with a nut of the screw rod lifting mechanism, the loading head 603 is arranged on a guide rod 605 of the loading support 601, the force sensor 604 is arranged between the loading head 603 and the loading oil cylinder 602 to detect the loading force and improve the application precision of the loading force, the hydraulic system is arranged on the ground behind the test bed and is connected with the loading oil cylinder 602 through a hydraulic oil pipe and an electromagnetic overflow valve to provide stable loading force for the loading oil cylinder 602.
The side of the horizontal moving frame 4 is also provided with an operation box 7 to control the horizontal movement of the horizontal moving frame 4, the vertical lifting of the loading mechanism 6 and the loading of the loading mechanism 6.
The left and right position adjustment of the loading mechanism 6 is achieved through the cooperation of the gear 9 and the rack 8, the height adjustment of the loading mechanism 6 is achieved through the lead screw lifting mechanism, the loading force is achieved through the cooperation of a hydraulic system and a loading oil cylinder, the test bed is simple, convenient and fast to install, the test operation is simple and clear, stable and reliable test equipment is provided for the strength test of the rear portion and the rear lower portion of a commercial vehicle and the side protection device, and accurate data support is provided for the safety of the commercial vehicle.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and it should be understood by those of ordinary skill in the art that the embodiments of the present invention can be modified or replaced with equivalents with reference to the above embodiments, and any modifications or equivalent substitutions which do not depart from the spirit and scope of the present invention are intended to be covered by the claims which are appended hereto.
Claims (10)
1. The utility model provides a commercial vehicle protector test bench which characterized in that: comprises a base, a horizontal moving mechanism, a lifting mechanism, a horizontal moving frame and a loading mechanism; the base is fixed in the foundation to bear the reverse force of the loading force; the horizontal moving frame is arranged on the base in a sliding manner; the horizontal moving mechanism is arranged on the horizontal moving frame so as to drive the horizontal moving frame to horizontally move on the base; the lifting mechanism is arranged on the horizontal moving frame and used for driving the connected loading mechanism to vertically lift; and the loading mechanism is connected with a hydraulic system outside the test bed.
2. The test bench for testing protective devices of commercial vehicles according to claim 1, wherein: the horizontal moving mechanism comprises a horizontal driving motor and a gear arranged on an output shaft of the motor, a sinking area is arranged on the upper surface of the base, and a rack matched with the gear is fixedly arranged in the sinking area.
3. The test stand for the protective device of the commercial vehicle according to claim 2, characterized in that: the rotating shaft of the gear is vertically arranged, and the rack is installed on the side wall of the sinking zone.
4. The test bench for testing protective devices of commercial vehicles according to claim 2, characterized in that: the base is provided with a horizontal moving guide rail, and the bottom of the horizontal moving frame is in sliding fit with the horizontal moving guide rail.
5. The test bench for testing protective devices of commercial vehicles as claimed in claim 4, wherein: the horizontal moving guide rails are provided with two guide rails which are fixed on two sides of the subsidence area in parallel, notch grooves extending along the length direction of the horizontal moving guide rails are formed in the inner sides of the horizontal moving guide rails, the notch grooves and the upper surface of the base enclose to form guide grooves with side openings, the bottom of the horizontal moving frame is provided with guide blocks extending into the guide grooves, and the guide blocks are in sliding fit with the guide grooves.
6. The test bench for testing protective devices of commercial vehicles as claimed in claim 4, wherein: a plurality of T-shaped grooves are formed in the base, and the horizontal moving guide rail is fixed through T-shaped bolts arranged in the T-shaped grooves.
7. The test stand for the protective device of the commercial vehicle according to claim 1, characterized in that: the lifting mechanism is a screw rod lifting mechanism, and a nut in the screw rod lifting mechanism is connected with the loading mechanism to drive the loading mechanism to vertically lift.
8. The test stand for testing protective devices of commercial vehicles according to claim 7, characterized in that: the horizontal moving frame is also provided with a lifting guide rail, and the loading mechanism is connected with the lifting guide rail in a sliding manner.
9. The test bench for testing protective devices of commercial vehicles according to claim 1, wherein: and a loading oil cylinder of the loading mechanism is connected with the hydraulic system through an oil pipe and an electromagnetic proportional overflow valve.
10. The test bench for testing protective devices of commercial vehicles according to claim 1, wherein: and a force sensor is arranged between the loading oil cylinder and the loading head of the loading mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222208148.7U CN217980794U (en) | 2022-08-22 | 2022-08-22 | Test bench for protective device of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222208148.7U CN217980794U (en) | 2022-08-22 | 2022-08-22 | Test bench for protective device of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217980794U true CN217980794U (en) | 2022-12-06 |
Family
ID=84259687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222208148.7U Active CN217980794U (en) | 2022-08-22 | 2022-08-22 | Test bench for protective device of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217980794U (en) |
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2022
- 2022-08-22 CN CN202222208148.7U patent/CN217980794U/en active Active
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