CN211651796U - Dynamic weighing device and test bench - Google Patents
Dynamic weighing device and test bench Download PDFInfo
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- CN211651796U CN211651796U CN202020667367.XU CN202020667367U CN211651796U CN 211651796 U CN211651796 U CN 211651796U CN 202020667367 U CN202020667367 U CN 202020667367U CN 211651796 U CN211651796 U CN 211651796U
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Abstract
The utility model belongs to the technical field of car simulation test, concretely relates to dynamic weighing device and test bench, dynamic weighing device, including top board, first gasket, cantilever beam type pressure sensor, second gasket, lower bolster the top board with the equipartition is a plurality of between the lower bolster cantilever beam type pressure sensor, this dynamic weighing device's structural design makes the real-time dynamic load of accessories such as measurement vehicle or wheels that it can be better.
Description
Technical Field
The application relates to the technical field of automobile simulation tests, in particular to a dynamic weighing device and a test bed.
Background
A series of tests or experiments are required to be carried out on wheel products in the design and manufacturing processes of the wheels, the indoor bench test is slightly influenced by factors such as weather, the test time and test process parameters can be accurately controlled, the test repeatability is good, and the method becomes a main test mode in the design and development of automobiles and accessories thereof. At present, no test bed can measure real-time dynamic loads of accessories such as vehicles or wheels in real time, and one important reason is that the conventional weighing sensors generally weigh static mass, such as an electronic scale and an electronic scale, and a device capable of well testing the dynamic loads of the wheels is not discovered temporarily.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a dynamic weighing device and a test bed, which can better measure real-time dynamic loads of accessories such as vehicles or wheels.
In order to achieve the above object, the utility model provides a following technical scheme:
in a first aspect, the application provides a dynamic weighing device, which is characterized by comprising an upper pressure plate, a first gasket, an cantilever beam type pressure sensor, a second gasket and a lower base plate, wherein the upper pressure plate corresponds to the lower base plate up and down, and a plurality of cantilever beam type pressure sensors are uniformly distributed between the upper pressure plate and the lower base plate; the fixed end of the cantilever beam type pressure sensor is fixedly connected with the upper pressure plate, the first gasket is arranged between the fixed end of the cantilever beam type pressure sensor and the upper pressure plate, and a gap is reserved between the fixed end of the cantilever beam type pressure sensor and the lower base plate; the measuring end of the cantilever beam type pressure sensor is fixedly connected with the lower backing plate, the second gasket is arranged between the measuring end of the cantilever beam type pressure sensor and the lower backing plate, and a gap is reserved between the measuring end of the cantilever beam type pressure sensor and the upper pressure plate.
In some embodiments, the number of the cantilever beam type pressure sensors is 4, and the force bearing points of the cantilever beam type pressure sensors are arranged at four corners of the upper pressure plate.
In some embodiments, the first gasket is made of steel, and the fixed end of the cantilever beam type pressure sensor is fixedly connected with the upper pressure plate through a first screw.
In some embodiments, the second gasket is made of hard rubber, and the measuring end of the cantilever beam type pressure sensor is fixedly connected with the second gasket and the second gasket is fixedly connected with the lower backing plate by gluing.
In some embodiments, the four corners of the upper press plate and the lower backing plate are provided with corresponding positioning holes.
In some embodiments, threaded holes are correspondingly formed in the upper pressure plate and the lower backing plate, second screws are fixed in the threaded holes to correspondingly press the upper pressure plate and the lower backing plate, nuts are arranged on the threaded holes of the lower backing plate, and the second screws penetrate through the nuts.
In some embodiments, the dynamic weighing apparatus further comprises a data acquisition unit, the cantilever beam type pressure sensor is in signal connection with the data acquisition unit, and the data acquisition unit can receive the signal of the cantilever beam type pressure sensor to obtain the real-time load of the dynamic weighing apparatus.
In a second aspect, the present invention provides a test bed, which comprises an actuator, a tray, a wheel stop and a dynamic weighing device as described in any of the above embodiments, wherein the bottom of the tray is fixedly connected to the actuator, the dynamic weighing device is fixedly mounted on the upper surface of the tray, and the upper surface of the tray contacts with the lower cushion plate; the wheel stopper is arranged on the upper surface of the tray and used for limiting the tire.
In some embodiments, 4 wheel stoppers are arranged on one tray of the test bed and used for stopping and limiting the tire in the axial direction and the front and back direction of the tire.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a dynamic weighing device, including top board, first gasket, cantilever beam type pressure sensor, second gasket, lower bolster the top board with the equipartition is a plurality of between the lower bolster cantilever beam type pressure sensor, this dynamic weighing device's structural design makes the real-time dynamic load of accessories such as its measurement vehicle or wheels that can be better. The dynamic weighing device is mounted on the test bed, the requirement that the test bed measures real-time dynamic loads of accessories such as vehicles or wheels is met, and the test bed is convenient to measure and use.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dynamic weighing apparatus according to the present application.
FIG. 2 is a schematic cross-sectional view taken along A-A of a dynamic weighing apparatus of the present application.
FIG. 3 is a top view of an cantilevered pressure sensor of a dynamic weighing apparatus of the present application.
Fig. 4 is a schematic structural diagram of an upper pressing plate of a dynamic weighing apparatus according to the present application.
FIG. 5 is a schematic cross-sectional view of the upper platen of a dynamic weighing apparatus of the present application taken along the direction B-B.
Fig. 6 is a schematic structural view of a lower pad of a dynamic weighing apparatus according to the present application.
FIG. 7 is a schematic cross-sectional view of a lower pad of a dynamic weighing apparatus of the present application taken along the direction C-C.
Fig. 8 is a schematic structural diagram of a first pad of a dynamic weighing apparatus according to the present application.
Fig. 9 is a schematic structural diagram of a wheel test stand according to the present application.
Fig. 10 is a schematic structural diagram of an automobile road simulation test bed according to the present application.
Wherein: 1-upper pressure plate, 2-second screw, 3-nut, 4-first gasket, 5-cantilever beam type pressure sensor, 6-second gasket, 7-lower gasket, 8-first screw, 9-threaded hole, 10-positioning hole, 11-fixing end, 12-measuring end, 13-actuator, 14-tray, 15-wheel block and 16-base.
Detailed Description
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to obtain the pressure change of wheels or other automobile accessories on a test bed in real time and acquire dynamic force so as to facilitate subsequent software simulation, the application provides a dynamic weighing device, which comprises an upper pressure plate, a first gasket, a cantilever beam type pressure sensor, a second gasket and a lower base plate, wherein the upper pressure plate corresponds to the lower base plate up and down, and a plurality of cantilever beam type pressure sensors are uniformly distributed between the upper pressure plate and the lower base plate; the fixed end of the cantilever beam type pressure sensor is fixedly connected with the upper pressure plate, the first gasket is arranged between the fixed end of the cantilever beam type pressure sensor and the upper pressure plate, and a gap is reserved between the fixed end of the cantilever beam type pressure sensor and the lower base plate; the measuring end of the cantilever beam type pressure sensor is fixedly connected with the lower backing plate, the second gasket is arranged between the measuring end of the cantilever beam type pressure sensor and the lower backing plate, and a gap is reserved between the measuring end of the cantilever beam type pressure sensor and the upper pressure plate. The structural design of the dynamic weighing device in the embodiment enables the dynamic weighing device to be capable of well measuring real-time dynamic loads of accessories such as vehicles or wheels.
The pressure sensors can be determined according to the actual shape or size of the upper pressure plate and the lower backing plate, and the layout is reasonable, in some embodiments, the number of the cantilever beam type pressure sensors is 4, and the stress points of the cantilever beam type pressure sensors are positioned at four corners of the upper pressure plate.
In order to protect the pressure sensor and bear larger pressure, in some embodiments, the first gasket is made of steel, and the fixed end of the cantilever beam type pressure sensor is fixedly connected with the upper pressure plate through a first screw.
In order to protect the pressure sensor and fix the pressure sensor, in some embodiments, the second gasket is made of hard rubber, and the measuring end of the cantilever beam type pressure sensor is fixedly connected with the second gasket and the second gasket is fixedly connected with the lower backing plate by gluing.
In some embodiments, four corners of the upper press plate and the lower backing plate are provided with corresponding positioning holes.
In order to enable the upper pressure plate and the lower pressure plate to correspond to each other and not to shift in the measuring process, in some embodiments, threaded holes are correspondingly formed in the upper pressure plate and the lower backing plate, a second screw is fixed in the threaded holes to correspondingly press the upper pressure plate and the lower backing plate, a nut is arranged on the threaded hole of the lower backing plate, and the second screw penetrates through the nut. In this embodiment, the upper pressure plate and the lower pressure plate are positioned by a screw connection, and the screw also functions as a sliding column.
In some embodiments, the dynamic weighing apparatus further comprises a data acquisition unit, the cantilever beam type pressure sensor is in signal connection with the data acquisition unit, and the data acquisition unit can receive the signal of the cantilever beam type pressure sensor to obtain the real-time load of the dynamic weighing apparatus.
In a second aspect, the present invention provides a test bed, which comprises an actuator, a tray, a wheel stop and a dynamic weighing device as described in any of the above embodiments, wherein the bottom of the tray is fixedly connected to the actuator, the dynamic weighing device is fixedly mounted on the upper surface of the tray, and the upper surface of the tray contacts with the lower cushion plate; the wheel stopper is arranged on the upper surface of the tray and used for limiting the tire. The test bed meets the requirement that the test bed measures real-time dynamic loads of accessories such as vehicles or wheels and the like, and is convenient to measure and use.
In some embodiments, 4 wheel stoppers are arranged on one tray of the test bed and used for stopping and limiting the tire in the axial direction and the front and back direction of the tire.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
referring to fig. 1 to 8 in the specification, embodiment 1 provides a dynamic weighing apparatus, which includes an upper pressing plate 1, a second screw 2, a nut 3, a first gasket 4, an cantilever beam type pressure sensor 5, a second gasket 6, a lower gasket 7, a first screw 8, a threaded hole 9, and a positioning hole 10. The cantilever type pressure sensor 5 can be a product manufactured by a factory on the market, for example, MCC-X4 series cantilever type weighing sensors of beijing open instruments ltd, and the measuring range can be selected to be 0-50 Kg, 0-100 Kg, 0-200 Kg, 0-300 Kg, 0-500 Kg and the like according to different measuring ranges.
Four corners of the upper pressure plate 1 and the lower cushion plate 7 are provided with positioning holes 10 which are corresponding up and down. The upper pressing plate 1 and the lower backing plate 7 are correspondingly provided with threaded holes 9, second screws 2 are fixed in the threaded holes 9 to correspondingly compress the upper pressing plate 1 and the lower backing plate 7, nuts 3 are arranged on the threaded holes 9 of the lower backing plate 7, and the second screws 2 penetrate through the nuts 3. The upper pressure plate 1 and the lower backing plate 7 are connected and positioned through second screws 2, and the second screws 2 also play the role of sliding columns. The upper pressure plate 1 corresponds to the lower backing plate 7 vertically, and a plurality of cantilever beam type pressure sensors 5 are uniformly distributed between the upper pressure plate 1 and the lower backing plate 7. In embodiment 1, the number of the cantilever beam type pressure sensors 5 is 4, and the force bearing points of the cantilever beam type pressure sensors 5 are at four corners of the upper platen 1.
The fixed end 11 of the cantilever beam type pressure sensor 5 is fixedly connected with the upper pressure plate 1, the first gasket 4 is arranged between the fixed end 11 of the cantilever beam type pressure sensor 5 and the upper pressure plate 4, and a gap is reserved between the fixed end 11 of the cantilever beam type pressure sensor 5 and the lower cushion plate 7. The first gasket 4 is made of steel, and a fixed end 11 of the cantilever beam type pressure sensor 5 is fixedly connected with the upper pressure plate 1 through a first screw 8. The measuring end 12 of the cantilever type pressure sensor 5 is fixedly connected with the lower backing plate 7, the second gasket 6 is arranged between the measuring end 12 of the cantilever type pressure sensor 5 and the lower backing plate 7, and a gap is reserved between the measuring end 12 of the cantilever type pressure sensor 5 and the upper pressure plate 1. The second gasket 7 is made of hard rubber, and the measuring end 12 of the cantilever beam type pressure sensor 5 is fixedly connected with the second gasket 7 and the second gasket 6 is fixedly connected with the lower backing plate 7 through glue.
The dynamic weighing device further comprises a data acquisition unit, the cantilever beam type pressure sensor 5 is in signal connection with the data acquisition unit, the data acquisition unit can receive signals of the cantilever beam type pressure sensor 5, one pressure sensor occupies one channel of the data acquisition unit, and the data acquisition unit sums dynamic data acquired by each channel to obtain real-time load of the dynamic weighing device. In this embodiment, the data acquisition unit may be a micro control unit with an analog-to-digital conversion channel, a single chip, a digital signal processor, or the like, or may also be a circuit board with an analog-to-digital conversion chip and a control unit chip, where the control unit may be a micro control unit, a single chip, a digital signal processor, a programmable logic device, an ARM, a CPU (central processing unit), or the like.
Example 2:
in example 2, there is disclosed a wheel test stand, as shown in fig. 9, comprising an actuator 13, a tray 14, wheel blocks 15 and a dynamic weighing apparatus as described in example 1 above. The actuator 13 is here a conventional laboratory bench device, also known as a vibration exciter, which is intended to exert a control force on the control object according to a determined control law, for example of the type of a servo actuator, a digital hydraulic actuator, an electric actuator or the like, and will not be described in detail here. As shown in fig. 9, the bottom of the actuator 13 is fixed to the base 16, and the base 16 is fixed to the bottom surface. The bottom of the tray 14 is fixedly connected with the actuator 13, and the actuator 13 applies force to the bottom of the tray 14. The dynamic weighing device is fixedly arranged on the upper surface of the tray 14, and the upper surface of the tray 14 is contacted with the lower cushion plate 7. The wheel stopper 15 is installed on the upper surface of the tray 14 to limit the tire. In this embodiment, 4 wheel stoppers 15 are disposed on one tray 14 of the test stand, and are used for stopping and limiting the tire in the axial direction of the tire and the front-back direction of the tire. This wheel test bench wheel contact when using top board 1 of dynamic weighing device to the position is stable after wheel dog 15 is spacing, has satisfied the needs of the real-time dynamic load of accessories such as test bench measurement vehicle or wheel through this test bench of in-service use, measures convenient to use, has improved experimental efficiency.
Example 3:
in embodiment 3, there is disclosed an automobile road simulation test bed, as shown in fig. 10, comprising four actuators 13, four pallets 14, 16 wheel blocks 15, and four dynamic weighing devices as described in embodiment 1 above. The actuator 13 is here a conventional laboratory bench device, also known as a vibration exciter, which is intended to exert a control force on the control object according to a determined control law, for example of the type of a servo actuator, a digital hydraulic actuator, an electric actuator or the like, and will not be described in detail here. As shown in fig. 10, the bottom of the actuator 13 is fixed to a base 16, and the base 16 is fixed to the bottom surface. The bottom of the tray 14 is fixedly connected with the actuator 13, and the actuator 13 applies force to the bottom of the tray 14. The dynamic weighing device is fixedly arranged on the upper surface of the tray 14, and the upper surface of the tray 14 is contacted with the lower cushion plate 7. The wheel stopper 15 is installed on the upper surface of the tray 14 to limit the tire. In this embodiment, 4 wheel stoppers 15 are disposed on one tray 14 of the test stand, and are used for stopping and limiting the tire in the axial direction of the tire and the front-back direction of the tire. The utility model provides a car road simulation test platform wheel contact when using top board 1 of dynamic weighing device to position is stable after wheel dog 15 is spacing, has satisfied the needs of the real-time dynamic load of accessories such as test bench measurement vehicle or wheel through this test bench of in-service use, measures convenient to use, has improved experimental efficiency.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (9)
1. A dynamic weighing device is characterized by comprising an upper pressure plate, a first gasket, a cantilever beam type pressure sensor, a second gasket and a lower backing plate,
the upper pressure plate and the lower cushion plate correspond to each other up and down, and a plurality of cantilever beam type pressure sensors are uniformly distributed between the upper pressure plate and the lower cushion plate;
the fixed end of the cantilever beam type pressure sensor is fixedly connected with the upper pressure plate, the first gasket is arranged between the fixed end of the cantilever beam type pressure sensor and the upper pressure plate, and a gap is reserved between the fixed end of the cantilever beam type pressure sensor and the lower base plate;
the measuring end of the cantilever beam type pressure sensor is fixedly connected with the lower backing plate, the second gasket is arranged between the measuring end of the cantilever beam type pressure sensor and the lower backing plate, and a gap is reserved between the measuring end of the cantilever beam type pressure sensor and the upper pressure plate.
2. The dynamic weighing apparatus of claim 1, wherein said plurality of said plurality.
3. The dynamic weighing apparatus of claim 1, wherein said first spacer is made of steel, and a fixed end of said cantilever beam type pressure sensor is fixedly connected to said upper plate by a first screw.
4. The dynamic weighing apparatus of claim 1, wherein the second pad is made of hard rubber, and the measuring end of the cantilever beam type pressure sensor is fixedly connected with the second pad and the second pad is fixedly connected with the lower backing plate by gluing.
5. The dynamic weighing apparatus of claim 1, wherein the four corners of the upper platen and the lower backing plate are provided with corresponding positioning holes.
6. The dynamic weighing apparatus of claim 1, wherein the upper pressing plate and the lower cushion plate are correspondingly provided with threaded holes, second screws are fixed in the threaded holes to correspondingly press the upper pressing plate and the lower cushion plate, nuts are arranged on the threaded holes of the lower cushion plate, and the second screws pass through the nuts.
7. The dynamic weighing apparatus of claim 1, further comprising a data acquisition unit, wherein said cantilevered pressure sensor is in signal communication with said data acquisition unit, and said data acquisition unit is capable of receiving a signal from said cantilevered pressure sensor to derive a real-time load of said dynamic weighing apparatus.
8. A test bed, comprising an actuator, a tray, a wheel stop and a dynamic weighing apparatus as claimed in any one of claims 1 to 7, wherein the bottom of the tray is fixedly connected to the actuator, the dynamic weighing apparatus is fixedly mounted on the upper surface of the tray, and the upper surface of the tray contacts the lower base plate; the wheel stopper is arranged on the upper surface of the tray and used for limiting the tire.
9. A test rig according to claim 8, wherein 4 of said wheel blocks are provided on a pallet for stopping the tire in the axial direction and the fore-aft direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020667367.XU CN211651796U (en) | 2020-04-28 | 2020-04-28 | Dynamic weighing device and test bench |
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| CN202020667367.XU CN211651796U (en) | 2020-04-28 | 2020-04-28 | Dynamic weighing device and test bench |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775538A (en) * | 2021-02-18 | 2021-05-11 | 苏州大学 | Welding fixture for measuring and controlling pressing force |
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- 2020-04-28 CN CN202020667367.XU patent/CN211651796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775538A (en) * | 2021-02-18 | 2021-05-11 | 苏州大学 | Welding fixture for measuring and controlling pressing force |
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