CN117129239A - Test load tool for semitrailer - Google Patents
Test load tool for semitrailer Download PDFInfo
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- CN117129239A CN117129239A CN202311376324.0A CN202311376324A CN117129239A CN 117129239 A CN117129239 A CN 117129239A CN 202311376324 A CN202311376324 A CN 202311376324A CN 117129239 A CN117129239 A CN 117129239A
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- driving
- semitrailer
- connecting rod
- bottom plate
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 230000004308 accommodation Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000013112 stability test Methods 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention relates to the technical field of semitrailers, in particular to a test load tool for a semitrailer, which comprises a supporting part, a driving part and a load bracket, wherein the supporting part comprises a supporting frame and a plurality of bottom plates, the bottom plates are adjacently paved at the bottom of the supporting frame, the driving part is in sliding connection with the supporting frame, and the load bracket is detachably connected with the driving part; the driving part and the load support are supported by the supporting part, and the driving part drives the load to move in the semitrailer, so that the stability test requirements of different centroids of the semitrailer are met; the bottom of support frame sets up a plurality of bottom plates, connects through the connecting rod between the adjacent bottom plate, when the different positions that need the semitrailer carry out load test, rotates the connecting rod in the corresponding bottom plate, makes close connection between the adjacent bottom plate, makes a plurality of bottom plates of test position form a fixed area, realizes the stability operation test of the different barycenters of semitrailer, convenient to use is swift.
Description
Technical Field
The invention relates to the technical field of semitrailers, in particular to a test load tool for a semitrailer.
Background
Semitrailers are an important transport vehicle for the transport of goods, the performance and stability of which are of paramount importance. After the production is completed, the semitrailer needs to be subjected to a semi-trailer traction vehicle operation stability test to ensure the safety and stability of the semitrailer on a road.
The semitrailer comprises a self-unloading semitrailer, a low-bed semitrailer, a warehouse grid semitrailer, a container semitrailer, a tank semitrailer, a van semitrailer and the like. Because the barycenter positions of the semitrailers of different types are different, when the operation stability test of the semitrailer is carried out, the semitrailer needs to be replaced so as to realize the stability operation test on the different barycenter positions, and the semitrailer has high test cost and long test period. Therefore, a test load tool for the semitrailer needs to be designed, and the stability operation test of different centroids of the semitrailer can be conveniently realized under the condition that the semitrailer is not replaced.
Like the experimental load frock of chinese patent publication No. CN212674453U and experimental semitrailer of using, including base, support, mounting bracket, weight box and support column, base position adjustable installs on the frame bottom plate of semitrailer, and support detachably connects on the base, and the support is along the length direction position adjustable of base, and mounting bracket detachably connects on the support, and the weight box is connected on the mounting bracket, is provided with the balancing weight in the weight box, and the one end of support column is connected on the base, and the other end is connected in the bottom of weight box. The test semitrailer comprises at least one test load tool for the semitrailer. The application discloses a semitrailer is with experimental load frock and experimental semitrailer, and barycenter position accommodation is big, can satisfy the experimental demand of the operation stability of most semitrailer traction car, need not to change the semitrailer of different grade type, can satisfy the experimental demand of multiple barycenter position.
The load frock of the device is detachable, through removing load frock, realizes the regulation of semitrailer barycenter position, but load frock is heavier, moves, dismantles and the fixed time operation comparatively inconvenient to load frock.
The invention aims to solve the technical problems that: the design of the test load tool for the semitrailer enables the load tool to move in the semitrailer, so that test requirements of different mass center positions in the semitrailer are met, labor is reduced, and test efficiency is improved.
Disclosure of Invention
In order to solve the problems, the invention provides a test load tool for a semitrailer.
The technical scheme adopted for solving the technical problems is as follows: the test load tool for the semitrailer comprises a supporting part, a driving part and a load support, wherein the supporting part comprises a supporting frame and a plurality of bottom plates, the bottom plates are adjacently paved at the bottom of the supporting frame, the driving part is in sliding connection with the supporting frame, and the load support is detachably connected with the driving part;
the side of bottom plate is sunken to form the spread groove, the inside rotation of bottom plate is connected with the connecting rod and is used for driving connecting rod pivoted driving motor, the connecting rod is elliptic cylinder, and the outer end of connecting rod sets up inside the spread groove of adjacent bottom plate, and the long diameter of connecting rod is not less than the height of spread groove, and the minor diameter of connecting rod is less than the height of spread groove.
As optimization, the support frame comprises an upper frame, a lower frame and a support column connected between the upper frame and the lower frame, and the bottom plate is arranged in the lower frame;
the upper frame and the lower frame are square frames, a first chute is arranged in the length direction of the upper frame, a second chute is arranged in the width direction of the upper frame, and the driving part is in sliding connection with the first chute and the second chute.
As optimization, the driving part comprises a first driving screw rod, a second driving screw rod and a driving seat, wherein the two ends of the first driving screw rod are connected with a first connecting block, the two ends of the second driving screw rod are connected with a second connecting block, the first connecting block is in sliding connection with a first sliding chute, and the second connecting block is in sliding connection with a second sliding chute;
the inside of drive seat is equipped with first connection screw and second connection screw, first drive lead screw and first connection screw threaded connection, second drive lead screw and second connection screw threaded connection, one of them end of first drive lead screw is connected with first motor, one of them end of second drive lead screw is connected with the second motor.
As optimization, the outside evenly distributed of drive seat has four vertical connection rails, the bottom of load support is equipped with the linking arm, is connected with vertical connection slider on the linking arm, connection slider and connection rail sliding connection.
As optimization, the bottom plate is square, four driving shafts are arranged in the bottom plate, and the driving shafts are connected with the connecting rods;
the one end that the drive shaft kept away from the connecting rod is equipped with the worm wheel, driving motor's output shaft has the worm, and the worm is connected with the worm wheel cooperation.
As optimization, the inside of drive shaft is equipped with the telescopic link, and the extension end connection of telescopic link is equipped with the hexagonal prism, the connecting rod is sunken formation accommodation hole with the adjacent one end of drive shaft, and accommodation hole's bottom is sunken to form six arris holes, and six arris holes are used for holding the hexagonal prism.
As optimization, the inside of bottom plate is equipped with the pore canal that holds the connecting rod, and the pore canal is inside to be equipped with connecting bearing, and the connecting rod links firmly with connecting bearing's inner circle.
The beneficial effect of this scheme is, a semitrailer is with experimental load frock has following beneficial portion:
the driving part and the load support are supported by the supporting part, and the driving part drives the load to move in the semitrailer, so that the stability test requirements of different centroids of the semitrailer are met;
the bottom of support frame sets up a plurality of bottom plates, connects through the connecting rod between the adjacent bottom plate, when the different positions that need the semitrailer carry out load test, rotates the connecting rod in the corresponding bottom plate, makes close connection between the adjacent bottom plate, makes a plurality of bottom plates of test position form a fixed area, realizes the stability operation test of the different barycenters of semitrailer, convenient to use is swift.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an isometric view of the present invention.
Fig. 3 is an isometric view of the invention with the load bracket omitted.
Fig. 4 is an enlarged schematic view of the portion a of fig. 3 according to the present invention.
Fig. 5 is a bottom isometric view of a load carrier of the present invention.
Fig. 6 is an axial schematic view of the connection structure of the base plate of the present invention.
Fig. 7 is an isometric schematic view of a base plate of the present invention.
Fig. 8 is a schematic front view of the structure of the base plate of the present invention.
FIG. 9 is a schematic view of the structure of FIG. 8, taken along line A-A, in accordance with the present invention.
Fig. 10 is a schematic top view of the connection structure of the base plate of the present invention.
FIG. 11 is a schematic view of the structure of the invention in section B-B in the separated state between the bottom plates of FIG. 10.
FIG. 12 is a schematic view showing a B-B cut structure of the connection state between the bottom plates of FIG. 10 according to the present invention.
The device comprises a supporting frame 1, a supporting frame 2, a bottom plate 3, a load support 4, a connecting groove 5, a connecting rod 6, a driving motor 7, a first sliding groove 8, a second sliding groove 9, a first driving screw rod 10, a second driving screw rod 11, a driving seat 12, a connecting rail 13, a connecting arm 14, a connecting sliding block 15, a driving shaft 16, a worm wheel 17, a worm 18, a telescopic rod 19 and a hexagonal prism.
Detailed Description
As shown in fig. 1 and 9, the test load tooling for the semitrailer comprises a supporting part, a driving part and a load bracket 3, wherein the supporting part comprises a supporting frame 1 and a plurality of bottom plates 2, the plurality of bottom plates 2 are adjacently laid at the bottom of the supporting frame 1, the driving part is in sliding connection with the supporting frame 1, and the load bracket 3 is detachably connected with the driving part;
the side of bottom plate 2 is sunken to form spread groove 4, the inside rotation of bottom plate 2 is connected with connecting rod 5 and is used for driving connecting rod 5 pivoted driving motor 6, connecting rod 5 is the elliptic cylinder, and the outer end of connecting rod 5 sets up inside the spread groove 4 of adjacent bottom plate 2, and the long diameter of connecting rod 5 is not less than the height of spread groove 4, and the short diameter of connecting rod 5 is less than the height of spread groove 4.
The maximum diameter of the connecting rod 5 is equal to or slightly greater than the height of the connecting groove 4.
As shown in fig. 1, the supporting frame 1 includes an upper frame, a lower frame, and a supporting column connected between the upper frame and the lower frame, and the bottom plate 2 is disposed inside the lower frame;
the upper frame and the lower frame are square frames, a first chute 7 is arranged in the length direction of the upper frame, a second chute 8 is arranged in the width direction of the upper frame, and the driving part is in sliding connection with the first chute 7 and the second chute 8.
As shown in fig. 1 and 2, the driving part comprises a first driving screw rod 9, a second driving screw rod 10 and a driving seat 11, wherein two ends of the first driving screw rod 9 are connected with first connecting blocks, two ends of the second driving screw rod 10 are connected with second connecting blocks, the first connecting blocks are in sliding connection with a first sliding chute 7, and the second connecting blocks are in sliding connection with a second sliding chute 8;
the inside of the driving seat 11 is provided with a first connecting screw hole and a second connecting screw hole, the first driving screw rod 9 is in threaded connection with the first connecting screw hole, the second driving screw rod 10 is in threaded connection with the second connecting screw hole, one end of the first driving screw rod 9 is connected with a first motor, and one end of the second driving screw rod 10 is connected with a second motor.
The first driving screw rod 9 and the second driving screw rod 10 are in a cross-shaped arrangement, the first driving screw rod 9 is located on the upper side of the second driving screw rod 10, and the height difference between the first driving screw rod 9 and the second driving screw rod 10 is achieved by arranging different lengths through the first connecting block and the second connecting block.
As shown in fig. 2 and 5, four vertical connecting rails 12 are uniformly distributed on the outer side of the driving seat 11, a connecting arm 13 is arranged at the bottom of the load bracket 3, a vertical connecting sliding block 14 is connected to the connecting arm 13, and the connecting sliding block 14 is slidably connected with the connecting rails 12.
The length of the connecting slide block 14 is smaller than that of the connecting rail 12, the bottom of the connecting slide block 14 is not contacted with the bottom of the connecting rail 12, and the connecting rail 12 only plays a role in limiting and sliding the connecting slide block 14 and does not support the connecting slide block 14.
The lower end of the connecting arm 13 is provided with a spherical knot, the spherical surface of the spherical knot is contacted with the upper surface of the bottom plate 2, and the load bracket 3 is supported by the connecting arm 13.
As shown in fig. 9, the bottom plate 2 is square, four driving shafts 15 are arranged in the bottom plate 2, and the driving shafts 15 are connected with the connecting rods 5;
one end of the driving shaft 15 far away from the connecting rod 5 is provided with a worm wheel 16, an output shaft of the driving motor 6 is connected with a worm 17, and the worm 17 is connected with the worm wheel 16 in a matching way.
The drive shaft 15 is rotatably connected to the inside of the base plate 2.
As shown in fig. 9, the driving shaft 15 is provided with a telescopic rod 18, an elongated end of the telescopic rod 18 is connected with a hexagonal prism 19, one end of the connecting rod 5 adjacent to the driving shaft 15 is recessed to form a receiving hole, and a bottom of the receiving hole is recessed to form a hexagonal hole, and the hexagonal hole is used for receiving the hexagonal prism 19.
When the telescopic rod 18 is retracted, the hexagonal prism 19 is retracted into the accommodating hole, and when the telescopic rod 18 is extended, the hexagonal prism 19 extends into the hexagonal prism hole, so that the driving shaft 15 is in limit connection with the connecting rod 5.
As shown in fig. 9, a hole channel for accommodating the connecting rod 5 is formed in the bottom plate 2, a connecting bearing is arranged in the hole channel, and the connecting rod 5 is fixedly connected with the inner ring of the connecting bearing.
The using method comprises the following steps:
when the device is particularly used, the support frame 1 is placed in the carriage of the semitrailer;
the first motor and the second motor are operated, so that the first driving screw rod 9 and the second driving screw rod 10 drive the driving seat 11 to move to a region needing stability operation test;
according to the carriage area required to be tested, the base plates 2 at the corresponding positions are converted into the fixed connection, and the specific operation method is as follows:
the telescopic rod 18 stretches to enable the hexagonal prism 19 at the outer end of the telescopic rod 18 to be connected with the corresponding connecting rod 5, so that the driving shaft 15 and the connecting rod 5 can rotate simultaneously;
the driving motor 6 runs, the worm wheel 16 drives the driving shaft 15 and the connecting rod 5 to rotate 90 degrees through the worm 17, the maximum diameter of the connecting rod 5 is parallel to the height direction of the connecting groove 4, the two ends of the maximum diameter of the connecting rod 5 are tightly propped against the top of the connecting groove 4 and the bottom of the connecting groove 4, and the adjacent bottom plates 2 are connected without relative movement in the vertical direction.
And (3) placing a balancing weight in the load bracket 3, and carrying out a load test on the semitrailer.
The above specific embodiments are merely specific examples of the present invention, and the scope of the present invention includes, but is not limited to, the product shapes and styles of the above specific embodiments, and any suitable changes or modifications made by one of ordinary skill in the art, which are in accordance with the claims of the present invention, shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a test load frock for semitrailer which characterized in that: the device comprises a supporting part, a driving part and a load support (3), wherein the supporting part comprises a supporting frame (1) and a plurality of bottom plates (2), the bottom of the supporting frame (1) is adjacently paved with the plurality of bottom plates (2), the driving part is in sliding connection with the supporting frame (1), and the load support (3) is detachably connected with the driving part;
the side of bottom plate (2) is sunken to form spread groove (4), the inside rotation of bottom plate (2) is connected with connecting rod (5) and is used for driving connecting rod (5) pivoted driving motor (6), connecting rod (5) are elliptic cylinder, and the outer end of connecting rod (5) sets up inside spread groove (4) of adjacent bottom plate (2), and the long diameter of connecting rod (5) is not less than the height of spread groove (4), and the short diameter of connecting rod (5) is less than the height of spread groove (4).
2. The test load fixture for a semitrailer according to claim 1, wherein: the support frame (1) comprises an upper frame, a lower frame and a support column connected between the upper frame and the lower frame, and the bottom plate (2) is arranged in the lower frame;
the upper frame and the lower frame are square frames, a first chute (7) is arranged in the length direction of the upper frame, a second chute (8) is arranged in the width direction of the upper frame, and the driving part is in sliding connection with the first chute (7) and the second chute (8).
3. The test load fixture for a semitrailer according to claim 2, wherein: the driving part comprises a first driving screw rod (9), a second driving screw rod (10) and a driving seat (11), wherein the two ends of the first driving screw rod (9) are connected with first connecting blocks, the two ends of the second driving screw rod (10) are connected with second connecting blocks, the first connecting blocks are in sliding connection with the first sliding chute (7), and the second connecting blocks are in sliding connection with the second sliding chute (8);
the inside of drive seat (11) is equipped with first connection screw and second connection screw, and first drive lead screw (9) and first connection screw threaded connection, second drive lead screw (10) and second connection screw threaded connection, one of them end of first drive lead screw is connected with first motor, and one of them end of second drive lead screw is connected with the second motor.
4. A test load fixture for a semitrailer according to claim 3, wherein: four vertical connecting rails (12) are uniformly distributed on the outer side of the driving seat (11), connecting arms (13) are arranged at the bottom of the load support (3), vertical connecting sliding blocks (14) are connected to the connecting arms (13), and the connecting sliding blocks (14) are in sliding connection with the connecting rails (12).
5. The test load fixture for a semitrailer according to claim 1, wherein: the bottom plate (2) is square, four driving shafts (15) are arranged in the bottom plate (2), and the driving shafts (15) are connected with the connecting rods (5);
one end of the driving shaft (15) far away from the connecting rod (5) is provided with a worm wheel (16), an output shaft of the driving motor (6) is connected with a worm (17), and the worm (17) is connected with the worm wheel (16) in a matching way.
6. The test load fixture for a semitrailer according to claim 5, wherein: the inside of drive shaft (15) is equipped with telescopic link (18), and the extension end connection of telescopic link (18) is equipped with hexagonal prism (19), connecting rod (5) are sunken formation accommodation hole with the adjacent one end of drive shaft (15), and the bottom of accommodation hole is sunken to form six arris holes, and six arris holes are used for holding hexagonal prism (19).
7. The test load fixture for a semitrailer according to claim 1, wherein: the inside of bottom plate (2) is equipped with the pore that holds connecting rod (5), and the pore is inside to be equipped with connecting bearing, and connecting rod (5) link firmly with connecting bearing's inner circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376324.0A CN117129239B (en) | 2023-10-24 | 2023-10-24 | Test load tool for semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376324.0A CN117129239B (en) | 2023-10-24 | 2023-10-24 | Test load tool for semitrailer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117129239A true CN117129239A (en) | 2023-11-28 |
| CN117129239B CN117129239B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311376324.0A Active CN117129239B (en) | 2023-10-24 | 2023-10-24 | Test load tool for semitrailer |
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| Country | Link |
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| CN (1) | CN117129239B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848740A (en) * | 2024-03-08 | 2024-04-09 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
| CN118150194A (en) * | 2024-05-09 | 2024-06-07 | 蒙阴县鹏程万里车辆有限公司 | Semitrailer performance test platform |
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2023
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848740A (en) * | 2024-03-08 | 2024-04-09 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
| CN117848740B (en) * | 2024-03-08 | 2024-05-14 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
| CN118150194A (en) * | 2024-05-09 | 2024-06-07 | 蒙阴县鹏程万里车辆有限公司 | Semitrailer performance test platform |
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| Publication number | Publication date |
|---|---|
| CN117129239B (en) | 2024-02-06 |
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