CN208751691U - A kind of truck vehicle bridge axle load sensor - Google Patents
A kind of truck vehicle bridge axle load sensor Download PDFInfo
- Publication number
- CN208751691U CN208751691U CN201821550617.0U CN201821550617U CN208751691U CN 208751691 U CN208751691 U CN 208751691U CN 201821550617 U CN201821550617 U CN 201821550617U CN 208751691 U CN208751691 U CN 208751691U
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- CN
- China
- Prior art keywords
- piston
- piezoelectric element
- shell
- auxiliary follow
- vehicle bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a kind of truck vehicle bridge axle load sensors, including shell, piezoelectric element, auxiliary follow up piston, the first return spring, sealing ring, circuit socket mouth and conducting wire；Piezoelectric element is set in shell, and sealing ring is set on auxiliary follow up piston；First return spring is placed on auxiliary follow up piston, and the first return spring is set in shell；The gas chamber that sealing is formed between the upper end and shell of auxiliary follow up piston, is filled with inert gas in gas chamber；Circuit socket mouth is fixed on the outside of shell, is connected between piezoelectric element and circuit socket mouth by conducting wire.When leaf spring deforms with carload variation, it will drive the auxiliary follow up piston synchronous slide respective distance of sensor, so that the air pressure of inert gas generates corresponding change in cavity, to change gas to the pressure on piezoelectric element surface, so that sensor can export the voltage signal of synchronous variation externally for the reading of vehicle related controller.
Description
Technical field
The utility model belongs to automobile sensor technical field, particularly relates to a kind of truck vehicle bridge axle load sensor.
Background technique
The axle load of each vehicle bridge of truck determines the pressure of the tire 03 of the bridge on the ground, to determine phase indirectly
Answer the frictional force on tire and ground.
As shown in Figure 1 to Figure 3, the suspension assembly for matching the truck of doube bridge generallys use plate spring suspension brackets 02, vehicle bridge it is instantaneous
Bearing capacity and the corresponding bending measurer of leaf spring 04 have certain proportionate relationship.Suspension assembly and vehicle frame 01 pass through suspension
Balance shaft 05 is connected and fixed, and therefore, the leaf spring relative frame position of suspension assembly is fixed, on the basis of vehicle frame, measurement pair
The bending amount of leaf spring relative frame can obtain the load data of vehicle bridge indirectly.
Utility model content
The purpose of the utility model is to provide a kind of truck vehicle bridge axle load sensors, to solve the prior art not to steel plate
The problem of bending amount of spring is detected, can not obtain the load data of vehicle bridge.
The utility model is achieved through the following technical solutions:
A kind of truck vehicle bridge axle load sensor, including shell, piezoelectric element, auxiliary follow up piston, the first return spring, sealing
Circle, circuit socket mouth and conducting wire；
The piezoelectric element is set in the shell, and the sealing ring is set on the auxiliary follow up piston；Described first
Return spring is placed on the auxiliary follow up piston, and first return spring is set in the shell；
The gas chamber that sealing is formed between the upper end of the auxiliary follow up piston and the shell is filled with indifferent gas in the gas chamber
Body；
The circuit socket mouth is fixed on the outside of the shell, leads between the piezoelectric element and the circuit socket mouth
Cross conducting wire connection.
The shell includes enclosure body and the pedestal that is connected as one with the side surface of the enclosure body；
It is provided with mounting hole on the base；
The circuit socket mouth is fixed on the upper bottom surface of the enclosure body；
The bottom surface of the enclosure body is provided with auxiliary follow up piston perforation.
The piezoelectric element includes piezoelectric element ontology, upper insulating layer, top electrode and lower electrode；
The upper insulating layer is pasted on the upper surface of the piezoelectric element ontology；
The top electrode is fixed on the upper surface of the piezoelectric element ontology, and the lower electrode is fixed on the piezoelectric element
The lower surface of ontology.
The auxiliary follow up piston includes piston plate, connecting rod and contact；
The piston plate, the connecting rod and contact sequential connection are structure as a whole；The diameter of the piston plate is big
In the diameter of the connecting rod；
The side wall of the piston plate is provided with a circle groove, the sealing ring is arranged in the groove.
The contact is hemispherical dome structure.
The beneficial effects of the utility model are:
When leaf spring deforms with carload variation, the auxiliary follow up piston synchronous slide phase of sensor will drive
Should distance so that the air pressure of inert gas generates corresponding change in cavity, to change gas to the pressure on piezoelectric element surface,
So that sensor can export the voltage signal of synchronous variation externally for the reading of vehicle related controller.
Detailed description of the invention
Fig. 1 is the suspension assembly side view of prior art doube bridge truck；
Fig. 2 is the suspension assembly structural schematic diagram of prior art doube bridge truck；
Fig. 3 is the rearview of the suspension assembly of prior art doube bridge truck；
Fig. 4 is the utility model sensor structure schematic diagram；
Fig. 5 is piezoelectric element structural schematic diagram；
The axial sectional diagrammatical view illustration for crossing center that Fig. 6 is Fig. 5；
Fig. 7 is piezoelectric element in the intracorporal scheme of installation of shell；
Fig. 8 is the structural schematic diagram of auxiliary follow up piston；
Fig. 9 is assembling schematic diagram of the sensor on vehicle；
Figure 10 is mounting frame for sensor structural schematic diagram；
Figure 11 be sensor with spring deflection when structural schematic diagram.
Description of symbols
01 vehicle frame, 02 plate spring suspension brackets, 03 tire, 04 leaf spring, 05 suspension balance axle, 1 shell, 2 piezoelectricity member
Part, 3 auxiliary follow up pistons, 4 sealing rings, 5 first return springs, 6 circuit socket mouths, 7 gas chambers, 8 conducting wires, 21 piezoelectric elements
Ontology, insulating layer on 22,23 top electrodes, 24 lower electrodes, 31 piston plates, 32 connecting rods, 33 contacts, 34 grooves, 100
Vehicle frame, 200 leaf springs, 300 mounting brackets, 400 sensor units.
Specific embodiment
The technical solution of the utility model is described in detail by the following examples, embodiment below is only exemplary
, it is only capable of for explanation and illustration the technical solution of the utility model, and be not to be construed as to technical solutions of the utility model
Limitation.
The utility model provides a kind of truck vehicle bridge axle load sensor, as shown in Fig. 4 to Figure 11, including shell 1, piezoelectricity member
Part 2, auxiliary follow up piston 3, the first return spring 5, sealing ring 4, circuit socket mouth 6 and conducting wire 8；Piezoelectric element is by piezoelectric material system
At.
Piezoelectric element is set in shell, and sealing ring is set on auxiliary follow up piston；First return spring is placed on auxiliary follow up piston
On, and the first return spring is set in shell.
The gas chamber 7 that sealing is formed between the upper end and shell of auxiliary follow up piston, is filled with the indifferent gas of certain air pressure in gas chamber
Body；Auxiliary follow up piston slides in shell with the deformation of leaf spring.First return spring presets one in sensor internal
Fixed decrement.
Circuit socket mouth is fixed on the outside of shell, is connected between piezoelectric element and circuit socket mouth by conducting wire.
Shell includes enclosure body and the pedestal that is connected as one with the side surface of enclosure body；
Mounting hole is provided on pedestal；
Circuit socket mouth is fixed on the upper bottom surface of enclosure body；
The bottom surface of enclosure body is provided with auxiliary follow up piston perforation.
Piezoelectric element 2 includes piezoelectric element ontology 21, upper insulating layer 22, top electrode 23 and lower electrode 24；
Upper insulating layer is pasted on the upper surface of piezoelectric element ontology；The insulating layer is made of rigid insulating material, in addition to rising
To outside insulating effect, moreover it is possible to which the surface that the pressure that inert gas transmits uniformly is shared to entire piezoelectric material avoids piezoelectricity
Material local deformation is uneven and influences measurement accuracy.
Top electrode is fixed on the upper surface of piezoelectric element ontology, and lower electrode is fixed on the lower surface of piezoelectric element ontology, with
Measure the voltage difference of piezoelectric element body upper surface and lower surface.
As shown in fig. 7, for the air-tightness for ensuring sensor, piezoelectric element is pasted onto shell by the upper surface of upper insulating layer
Upper bottom surface on, the top electrode of piezoelectric element and lower electrode pass through conducting wire respectively and connect with circuit socket mouth.
As shown in figure 8, auxiliary follow up piston 3 includes piston plate 31, connecting rod 32 and contact 33；Contact is hemispherical dome structure.
Piston plate, connecting rod and contact sequential connection are structure as a whole；The diameter of piston plate is greater than the diameter of connecting rod；
The side wall of piston plate is provided with a circle groove 34, sealing ring is arranged in the groove.
As shown in figure 9, sensor unit is fixed on vehicle frame 100 by mounting bracket 300, the touching of sensor unit 400
Head is pressed on 200 top airfoil of leaf spring, and the elastic force of the return spring inside sensor unit can tightly press the end of contact
On leaf spring, as the bending auxiliary follow up piston of leaf spring is slided with respect to shell.
As shown in figure 11, when leaf spring deforms with carload variation, it will drive sensor auxiliary follow up piston
Synchronous slide respective distance, so that the air pressure of inert gas generates corresponding change in cavity, to change gas to piezoelectric element
The pressure on surface, so that sensor can export the voltage signal of synchronous variation externally for the reading of vehicle related controller.
Utility model has been described in detail by way of a preferred embodiment.However, by studying carefully above,
Variation and increase to each embodiment are also apparent to those of ordinary skill in the art.It is intended that institute
There are these variations and increase to fall within the scope protected by the claims of this utility model.
Claims (5)
1. a kind of truck vehicle bridge axle load sensor, which is characterized in that including shell, piezoelectric element, auxiliary follow up piston, the first return bullet
Spring, sealing ring, circuit socket mouth and conducting wire；
The piezoelectric element is set in the shell, and the sealing ring is set on the auxiliary follow up piston；First return
Spring is placed on the auxiliary follow up piston, and first return spring is set in the shell；
The gas chamber that sealing is formed between the upper end of the auxiliary follow up piston and the shell is filled with inert gas in the gas chamber；
The circuit socket mouth is fixed on the outside of the shell, by leading between the piezoelectric element and the circuit socket mouth
Line connection.
2. truck vehicle bridge axle load sensor according to claim 1, which is characterized in that the shell include enclosure body and
The pedestal being connected as one with the side surface of the enclosure body；
It is provided with mounting hole on the base；
The circuit socket mouth is fixed on the upper bottom surface of the enclosure body；
The bottom surface of the enclosure body is provided with auxiliary follow up piston perforation.
3. truck vehicle bridge axle load sensor according to claim 2, which is characterized in that the piezoelectric element includes piezoelectricity member
Part ontology, upper insulating layer, top electrode and lower electrode；
The upper insulating layer is pasted on the upper surface of the piezoelectric element ontology；
The top electrode is fixed on the upper surface of the piezoelectric element ontology, and the lower electrode is fixed on the piezoelectric element ontology
Lower surface.
4. truck vehicle bridge axle load sensor according to claim 1, which is characterized in that the auxiliary follow up piston includes piston
Disk, connecting rod and contact；
The piston plate, the connecting rod and contact sequential connection are structure as a whole；The diameter of the piston plate is greater than institute
State the diameter of connecting rod；
The side wall of the piston plate is provided with a circle groove, the sealing ring is arranged in the groove.
5. truck vehicle bridge axle load sensor according to claim 4, which is characterized in that the contact is hemispherical dome structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550617.0U CN208751691U (en) | 2018-09-21 | 2018-09-21 | A kind of truck vehicle bridge axle load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550617.0U CN208751691U (en) | 2018-09-21 | 2018-09-21 | A kind of truck vehicle bridge axle load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208751691U true CN208751691U (en) | 2019-04-16 |
Family
ID=66083663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821550617.0U Expired - Fee Related CN208751691U (en) | 2018-09-21 | 2018-09-21 | A kind of truck vehicle bridge axle load sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208751691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118603271A (en) * | 2024-05-27 | 2024-09-06 | 山东中策专用车股份有限公司 | A semi-trailer vehicle axle load intelligent monitoring device |
-
2018
- 2018-09-21 CN CN201821550617.0U patent/CN208751691U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118603271A (en) * | 2024-05-27 | 2024-09-06 | 山东中策专用车股份有限公司 | A semi-trailer vehicle axle load intelligent monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 |