CN220251163U - Stop gear and freight train weighing device - Google Patents
Stop gear and freight train weighing device Download PDFInfo
- Publication number
- CN220251163U CN220251163U CN202322144596.XU CN202322144596U CN220251163U CN 220251163 U CN220251163 U CN 220251163U CN 202322144596 U CN202322144596 U CN 202322144596U CN 220251163 U CN220251163 U CN 220251163U
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- Prior art keywords
- weighing
- sliding block
- mesa
- installation cover
- sleeve
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- 238000005303 weighing Methods 0.000 title claims abstract description 66
- 230000000670 limiting effect Effects 0.000 claims abstract description 32
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 22
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 abstract description 15
- 240000004282 Grewia occidentalis Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Loading Or Unloading Of Vehicles (AREA)
Abstract
The utility model discloses a limiting mechanism and a truck weighing device, which comprises a base sleeve and a mounting sleeve, wherein a push rod capable of sliding back and forth to compensate displacement generated during thermal expansion and cold contraction is arranged in the mounting sleeve, a locking assembly capable of locking the push rod in a non-sliding manner during weighing is arranged in the mounting sleeve, one end of the push rod, which is far away from the mounting sleeve, extends to the inside of the base sleeve and is provided with a sliding block for compensating extrusion force generated during thermal expansion and cold contraction.
Description
Technical Field
The utility model relates to a limiting mechanism and a truck weighing device, and belongs to the technical field of truck weighing.
Background
In order to avoid that the weighing device is subjected to shaking by extra force (such as horizontal impact force generated when an automobile is on or off the weighing device, braking force generated when the automobile is braked on a weighing table, reaction force generated when a load car advances in front of the automobile and the like) when a truck weighs, even if an individual driver tries to achieve the aim of cheating by means of S, jump, and the like, a limiting mechanism is usually installed on the weighing device at present to limit shaking of the weighing device and reduce offset load of a sensor, and the conventional limiting device is a four-corner eight-bit collision type limiting device, but the four-corner eight-bit collision type limiting device is easily influenced by temperature to generate thermal expansion and contraction so as to influence weighing precision, so that corresponding conditions are required to be carried out according to the temperature and calibration is carried out after each time of adjustment, and thus the use is troublesome.
Disclosure of Invention
According to the limit mechanism and the truck weighing device, through the arrangement of the locking assembly and the sliding block, the change of the limit mechanism caused by thermal expansion and cold contraction can not influence the weighing precision of the weighing device, so that a user is not required to adjust, and the truck weighing device is convenient to use.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a stop gear and freight train weighing device, includes base cover and installation cover, but the internally mounted of installation cover has the ejector pin that is used for compensating the displacement volume that produces when expend with heat and contract with cold that slides from beginning to end, sets up the ejector pin to can slide on the installation cover to can compensate because the degree of deformation that expend with heat and contract with cold led to the degree of depth of base cover to produce, and the internally mounted of installation cover has the dead subassembly of the dead ejector pin of lock that can not be in the slip when weighing, promptly before the vehicle is gone on weighing device when weighing, can make the dead subassembly lock the ejector pin, can make can mutually support between ejector pin, installation cover and the base cover play the limiting effect, the ejector pin is kept away from the inside of installation cover and is installed the slider that is used for compensating the extrusion force that expend with heat and contract with cold produced, and the slider can be when guaranteeing to spacing, because the width change that the compensation expend with heat makes the base cover produce consequently produces the extrusion force to the slider.
Preferably, the locking assembly comprises a plurality of jackets, the jackets are uniformly distributed around the ejector rod in a circumferential array, the jackets are respectively connected with the rotating plate through connecting rods, one ends of the connecting rods are mutually hinged with the jackets, the other ends of the connecting rods are mutually hinged with the rotating plate, the rotating plate is arranged on a motor shaft of the locking motor, and the motor shaft of the locking motor rotates to drive the rotating plate to rotate.
Preferably, the inner side wall of the mounting sleeve is fixedly connected with a plurality of limiting rods matched with the clamping sleeve, through holes matched with the limiting rods are formed in the clamping sleeve, and the clamping sleeve is in sliding connection with the limiting rods through the through holes.
Preferably, the slider is fixed to be cup jointed in the ejector pin and is located the inside one end outside of base cover, set up the space on the slider, and the material of slider is elastic material, and the interval in space changes to can offset the deformation volume that the base cover produced because expend with heat and contract with cold.
Preferably, the spring is fixedly connected to the inner side wall of the sliding block, one end, away from the sliding block, of the spring is fixedly connected with the guard plate, and the ejector rod can be pushed by the sliding block when the base sleeve deforms, so that the distance between the sliding block and the closed side of the base sleeve is kept unchanged.
Preferably, a plurality of balls are arranged on the inner side surface of the guard plate and the two side surfaces of the sliding block, and the arrangement of the balls can reduce friction force among the guard plate, the sliding block and the side wall of the base sleeve.
The utility model provides a freight train weighing device, includes the mesa of weighing, still includes above-mentioned stop gear, the both ends of mesa of weighing all are equipped with the sloping platform, a plurality of weighing sensor are installed to the downside of mesa of weighing, and when the freight train was driven to the mesa of weighing on, a plurality of weighing sensor can weigh the freight train, the four corners department of mesa of weighing all installs the installation cover, the base cover that corresponds is installed on the medial surface of sloping platform and in the position that corresponds with the installation cover, and the opening side of base cover and the opening side of installation cover face the same direction, and stop gear is all installed to the four corners department of mesa of weighing, can guarantee the spacing effect of symmetry weight mesa, the dead motor of lock is installed on the mesa of weighing.
Compared with the prior art, the utility model has the following beneficial effects:
1. through the arrangement of the ejector rod and the locking assembly, the situation that the ejector rod slides randomly due to expansion with heat and contraction with cold is realized, and the locking assembly locks the ejector rod during weighing, so that the mounting sleeve, the ejector rod and the base sleeve can smoothly perform limiting work;
2. the arrangement of the spring and the arc plate can keep the distance between the base sleeve and the ejector rod unchanged when the expansion and contraction are generated, so that the limiting effect can be stably realized;
3. through the setting in slider and space, can be when producing expend with heat and contract with cold, the deformation volume that the base cover produced can be offset through the interval change in space to can not influence the slip of slider, can not influence weighing device and weigh in succession.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of the installation of the base sleeve and the installation sleeve of the present utility model.
Fig. 3 is a cross-sectional view of a base sleeve of the present utility model.
FIG. 4 is a schematic illustration of the connection of the connecting rod to the jacket of the present utility model.
FIG. 5 is a schematic view of a slider according to the present utility model.
In the figure: 1. the base sleeve, 2, the installation sleeve, 3, the ejector rod, 4, the locking assembly, 401, the jacket, 402, the connecting rod, 403, the rotating plate, 404, the locking motor, 405, the limit rod, 5, the sliding block, 6, the spring, 7, the guard plate, 8, the ball, 9, the weighing table top, 10, the inclined table, 11 and the weighing sensor.
Detailed Description
The utility model is illustrated below by means of specific examples, without however limiting the utility model.
In this embodiment, as shown in fig. 2 and 3, a limiting mechanism is provided, which comprises a base sleeve 1 and a mounting sleeve 2, wherein a push rod 3 capable of sliding back and forth to compensate the displacement generated by thermal expansion and contraction is installed in the mounting sleeve 2, the depth of the base sleeve 1 can generate certain change due to thermal expansion and contraction, the push rod 3 is arranged to slide on the mounting sleeve 2, so that the deformation generated by the depth of the base sleeve 1 due to thermal expansion and contraction can be compensated, the limiting effect of the push rod 3 can not be influenced by the deformation generated by thermal expansion and contraction, and a locking component 4 capable of locking the push rod 3 in a stepless manner during weighing is installed in the mounting sleeve 2, when weighing, namely before the vehicle runs on the weighing device, the locking assembly 4 can lock the ejector rod 3, so that the ejector rod 3 and the mounting sleeve 2 do not slide, the ejector rod 3, the mounting sleeve 2 and the base sleeve 1 can be matched with each other to play a limiting role, one end of the ejector rod 3, which is far away from the mounting sleeve 2, extends to the inside of the base sleeve 1 and is provided with the sliding block 5 for compensating extrusion force generated by thermal expansion and contraction, the width of the base sleeve 1 also changes due to thermal expansion and contraction, and the sliding block 5 can compensate extrusion force generated by the sliding block 5 due to the width change of the base sleeve 1 while ensuring limiting, so that the extrusion force can not influence the limiting effect of the ejector rod 3 and the sliding block 5.
The locking assembly 4 comprises a plurality of jackets 401, the jackets 401 are uniformly distributed around the ejector rod 3 in a circumferential array, the inner side surfaces of the jackets 401 are rubber surfaces (shown in fig. 4), the jackets 401 are respectively connected with the rotating plate 403 through connecting rods 402, one ends of the connecting rods 402 are mutually hinged with the jackets 401, the other ends of the connecting rods 402 are mutually hinged with the rotating plate 403, the rotating plate 403 can rotate clockwise as shown in fig. 4 before a truck runs on the weighing device during weighing, at the moment, the rotating plate 403 pulls the jackets 401 through the connecting rods 402, so that the jackets 401 are mutually matched to clamp the ejector rod 3, the position of the ejector rod 3 is fixed and cannot slide, and then the limiting effect of the ejector rod 3 can not be affected;
after the weighing is finished, the automobile runs down from the weighing device, the rotating plate 403 can be rotated anticlockwise as shown in fig. 4, so that the plurality of jackets 401 can not clamp the ejector rod 3, at the moment, the ejector rod 3 can slide on the mounting sleeve 2 to compensate deformation quantity generated by depth of the base sleeve 1 due to expansion caused by heat and contraction caused by cold, the rotating plate 403 is mounted on a motor shaft of the locking motor 404, the motor shaft of the locking motor 404 rotates to drive the rotating plate 403 to rotate, the locking motor 404 is a forward and backward rotating motor, and the motor shaft of the locking motor can rotate in two directions, so that the rotating plate 403 can be driven to rotate clockwise or anticlockwise.
As shown in fig. 4, the inner side wall of the mounting sleeve 2 is fixedly connected with a plurality of limiting rods 405 matched with the clamping sleeve 401, the clamping sleeve 401 is provided with through holes matched with the limiting rods 405, and the clamping sleeve 401 is slidably connected with the limiting rods 405 through the through holes, so that the clamping sleeve 401 can only linearly slide along the direction of the limiting rods 405 when being pulled by the connecting rods 402, and the clamping sleeve 401 can smoothly clamp the ejector rods 3 or release the ejector rods 3.
As shown in fig. 5, the sliding block 5 is fixedly sleeved on the outer side of one end of the ejector rod 3 located in the base sleeve 1, a gap 12 is formed in the sliding block 5, the sliding block 5 is made of elastic materials, when the width of the base sleeve 1 is reduced due to expansion and contraction, the sliding block 5 is extruded, and the distance between the gaps 12 is reduced, so that extrusion force can be counteracted, vertical sliding of the sliding block 5 is not affected, and meanwhile, the limiting effect of the sliding block 5 is not affected;
when the width of the base sleeve 1 is increased, the distance between the gaps 12 is increased under the action of the self elasticity of the sliding block 5, so that the sliding block 5 and the inner side wall of the base sleeve 1 can be mutually attached, and the limiting effect of the sliding block 5 is not affected.
As shown in fig. 3, the spring 6 is fixedly connected to the inner side wall of the sliding block 5, one end, away from the sliding block 5, of the spring 6 is fixedly connected with the guard plate 7, the sliding block 5 can push the ejector rod 3 when the base sleeve 1 deforms, so that the distance between the sliding block 5 and the closed side of the base sleeve 1 is kept unchanged, the limiting effect can be guaranteed, and the base sleeve 1 cannot be influenced by changes caused by expansion due to heat and contraction due to cold.
As shown in fig. 3 and 5, a plurality of balls 8 are respectively mounted on the inner side surface of the guard plate 7 and the two side surfaces of the sliding block 5, and the friction force between the guard plate 7, the sliding block 5 and the side wall of the base sleeve 1 can be reduced by the arrangement of the balls 8, so that the sliding block 5 and the guard plate 7 can slide smoothly in the base sleeve 1 while the limiting effect is ensured, and weighing cannot be influenced.
The utility model provides a freight train weighing device, is shown in fig. 1, including weighing mesa 9, still includes above-mentioned stop gear, weighing mesa 9's both ends all are equipped with sloping platform 10, and the freight train that needs to weigh can travel on weighing mesa 9 through sloping platform 10, weighing mesa 9's downside installs a plurality of weighing sensor 11, when the freight train travels to weighing mesa 9 on, a plurality of weighing sensor 11 can weigh the freight train, weighing sensor 11 is connected with external receiving arrangement electricity, weighing sensor 11 can take place corresponding change to the signal of telecommunication of external transmission when feeling pressure variation, external receiving arrangement receives the signal of telecommunication after the change to change it is digital signal, thereby can make the staff judge the weight of freight train, weighing mesa 9's four corners department all installs installation cover 2, on the medial surface of sloping platform 10 and the position that corresponds with installation cover 2 installs corresponding base cover 1, and the opening side of base cover 1 and the opening side orientation the same direction of installation cover 2, weighing sensor 11 all has the motor of four corners department of weighing mesa 9 to accept the signal of telecommunication, can guarantee that the limit effect can be blocked at mesa 404, the limit lock can be installed on weighing mesa 9.
The locking motor 404 and the weighing sensor 11 are respectively communicated with an external power supply through cables, and the starting and stopping of the locking motor 404 and the weighing sensor 11 can be controlled by controlling the on-off of the power supply;
the load cell 11 is a prior art and is widely used, so the utility model is not described in detail, for example, the load cell 11 may be of QS-D30t type.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model and not for limiting the technical solution of the present utility model, and although the present utility model has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the present utility model, and any modification or partial replacement thereof should be included in the scope of the claims of the present utility model.
Claims (7)
1. The utility model provides a stop gear, its characterized in that, includes base cover (1) and installation cover (2), the internally mounted of installation cover (2) has ejector pin (3) that can slide from beginning to end and be used for compensating displacement volume that produces when expend with heat and contract with cold, and the internally mounted of installation cover (2) has can electrodeless lock dead ejector pin (3) make it not at gliding lock assembly (4) when weighing, the one end that installation cover (2) was kept away from to ejector pin (3) extends to the inside of base cover (1) and installs slider (5) that are used for compensating extrusion force that expend with heat and contract with cold produced.
2. A spacing mechanism according to claim 1, characterized in that the locking assembly (4) comprises a plurality of jackets (401), the jackets (401) being interconnected with a swivel plate (403) by means of connecting rods (402), respectively, the swivel plate (403) being mounted on the motor shaft of the locking motor (404).
3. A limiting mechanism according to claim 2, wherein a plurality of limiting rods (405) matched with the jacket (401) are fixedly connected to the inner side wall of the mounting sleeve (2).
4. The limiting mechanism according to claim 1, wherein the sliding block (5) is fixedly sleeved on the outer side of one end of the ejector rod (3) positioned in the base sleeve (1), a gap (12) is formed in the sliding block (5), and the sliding block (5) is made of elastic materials.
5. The limiting mechanism according to claim 4, wherein a spring (6) is fixedly connected to the inner side wall of the sliding block (5), and a guard plate (7) is fixedly connected to one end, away from the sliding block (5), of the spring (6).
6. A spacing mechanism according to claim 5, characterized in that a plurality of balls (8) are mounted on the inner side of the guard (7) and on both sides of the slide (5).
7. The utility model provides a freight train weighing device, includes weighing mesa (9), its characterized in that still includes the stop gear of any one of claims 1-6, weighing mesa (9) both ends all are equipped with sloping platform (10), a plurality of weighing sensor (11) are installed to weighing mesa (9) downside, installation cover (2) are all installed in weighing mesa (9) four corners department, base cover (1) that corresponds are installed on sloping platform (10) medial surface and the position that corresponds with installation cover (2), and the opening side of base cover (1) and the opening side orientation same direction of installation cover (2), dead motor (404) of lock is installed on weighing mesa (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322144596.XU CN220251163U (en) | 2023-08-10 | 2023-08-10 | Stop gear and freight train weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322144596.XU CN220251163U (en) | 2023-08-10 | 2023-08-10 | Stop gear and freight train weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220251163U true CN220251163U (en) | 2023-12-26 |
Family
ID=89265403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322144596.XU Active CN220251163U (en) | 2023-08-10 | 2023-08-10 | Stop gear and freight train weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220251163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664288A (en) * | 2024-01-31 | 2024-03-08 | 池州市计量测试所 | Vehicle load detection device and method |
-
2023
- 2023-08-10 CN CN202322144596.XU patent/CN220251163U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117664288A (en) * | 2024-01-31 | 2024-03-08 | 池州市计量测试所 | Vehicle load detection device and method |
| CN117664288B (en) * | 2024-01-31 | 2024-04-19 | 池州市计量测试所 | Vehicle load detection device and method |
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