CN219159420U - Non-independent suspension cylinder with built-in length measuring sensor - Google Patents
Non-independent suspension cylinder with built-in length measuring sensor Download PDFInfo
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- CN219159420U CN219159420U CN202223556474.3U CN202223556474U CN219159420U CN 219159420 U CN219159420 U CN 219159420U CN 202223556474 U CN202223556474 U CN 202223556474U CN 219159420 U CN219159420 U CN 219159420U
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Abstract
The utility model provides a built-in length measurement sensor's non-independent type suspension cylinder, includes the displacement sensor that is used for measuring the piston stroke, and the displacement sensor is embedded inside non-independent type suspension cylinder, and non-independent type suspension cylinder's both ends are equipped with the joint bearing of being connected with frame and axle, still include the through-flow hole that increases hydro-cylinder through-flow. According to the non-independent suspension cylinder with the built-in length measuring sensor, the displacement sensor is built in the non-independent suspension cylinder, a non-contact measuring method is adopted, friction and abrasion are not generated, and reliability and stability are good; the precision of the displacement sensor can reach 0.1mm of the soil, the precision is high, and the stroke can be detected in real time; the built-in telescopic displacement sensor improves the adaptability of the suspension cylinder to severe working conditions, and further improves the travelling performance of the chassis of the crane.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a non-independent suspension cylinder with a built-in length measuring sensor.
Background
The vehicle suspension system is an assembly of various elements connecting a vehicle frame and an axle or between the vehicle frame and wheels, and generally consists of elastic elements, guide devices, shock absorbers, transverse stabilizing rods and the like, and has the functions of transmitting loads acting between the vehicle frame and the wheels, isolating or relieving the impact of the wheels on the vehicle body and vibration generated by the impact caused by uneven pavement in the running process, so as to ensure the running smoothness, riding comfort and steering stability of the vehicle. Suspension systems can be classified into coil spring suspensions, leaf spring suspensions, torsion bar spring suspensions, and gas suspensions according to the difference of elastic elements. The hydro-pneumatic suspension technology is a novel chassis suspension technology, is a special case of an air suspension, has incomparable advantages of a common leaf spring suspension, and is an essential key technology for developing special vehicles, large-scale industrial vehicles and other multi-axle vehicles.
The hydro-pneumatic suspension consists of a suspension cylinder, an energy accumulator, a suspension valve group, a hydraulic pipeline, an electric switch, an electric controller and the like, and can realize lifting of the height of the vehicle body and leveling of the vehicle body. The suspension cylinder is connected with the axle and the frame and completes the lifting and leveling functions of the frame. The energy accumulator contains inert gas, and plays a role of a shock absorber to generate damping force in the hydraulic oil transmission process. The suspension valve group controls the lifting action of the suspension cylinder through an electric signal. Currently, all-terrain crane chassis axles are divided into integral axles and break-away axles. The integral axle has a large barbell, a rigid solid or hollow beam in the middle, and two ends for supporting the vehicle body through a suspension system, and is usually matched with a non-independent suspension. The disconnected axles are arranged on two sides of the vehicle body, and then each axle supports the vehicle body through a suspension system and can only be matched with an independent suspension.
The hydro-pneumatic suspension leveling of the chassis of the all-terrain crane adopts two modes of a proximity switch and a displacement sensor, and is respectively used on the non-independent suspension cylinder and the independent suspension cylinder. The non-independent suspension cylinder is leveled by using the proximity switch, and the proximity switch mounting support is welded on the cylinder barrel of the cylinder, so that the position of the proximity switch is fixed, the leveling position of the vehicle is also fixed, and the leveling at any position cannot be realized. When the vehicle runs or passes through an obstacle, the vehicle needs to carry out hydro-pneumatic suspension lifting action, and when the vehicle is not in the middle position, the vehicle can be in an uneven state, so that the running danger is increased.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the non-independent suspension cylinder with the built-in length measuring sensor, which has a simple structure and a good effect.
The utility model is realized by the following technical scheme: the utility model provides a built-in length measurement sensor's non-independent type suspension cylinder, includes the displacement sensor that is used for measuring the piston stroke, the displacement sensor is embedded inside non-independent type suspension cylinder, and non-independent type suspension cylinder's both ends are equipped with the joint bearing of being connected with frame and axle, still include the through-flow hole that increases hydro-cylinder through-flow.
It is further: one end of the displacement sensor is fixed on the cylinder bottom through a fixed support, the other end of the displacement sensor is a telescopic rod, and a magnetic ring matched with the telescopic rod for use is arranged on the piston.
The fixed support is fixed on the cylinder bottom through bolts.
The bolts are embedded and arranged at the bottom of the cylinder.
The piston is internally provided with a core pipe, the telescopic rod moves in the core pipe, and the magnetic ring is arranged on the core pipe.
The through-flow holes are arranged on the piston and the core tube.
The knuckle bearing is arranged on the frame and the axle through a pin shaft.
The utility model has the following advantages: according to the non-independent suspension cylinder with the built-in length measuring sensor, the displacement sensor is built in the non-independent suspension cylinder, a non-contact measuring method is adopted, friction and abrasion are not generated, and reliability and stability are good; the precision of the displacement sensor can reach 0.1mm of the soil, the precision is high, and the stroke can be detected in real time; the built-in telescopic displacement sensor improves the adaptability of the suspension cylinder to severe working conditions, and further improves the travelling performance of the chassis of the crane.
Drawings
Fig. 1 is a schematic structural view of an oil cylinder according to the present utility model.
In the figure: 1. the device comprises a joint bearing, 2, a displacement sensor, 3, a fixed support, 4, a bolt, 5, a cylinder bottom, 6, a magnetic ring, 7, a piston, 8, a through hole, 9 and a core tube.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are for illustration and explanation of the present utility model, and are not intended to limit the present utility model.
A non-self-contained suspension cylinder with built-in length measuring sensor as shown in fig. 1 comprises a displacement sensor 2 for measuring the stroke of a piston 7, wherein the displacement sensor 2 is embedded in the non-self-contained suspension cylinder. The other end of the displacement sensor 2 is provided with a telescopic rod, a piston 7 is provided with a magnetic ring 6 matched with the telescopic rod, a core tube 9 is arranged in the piston 7, the telescopic rod moves in the core tube 9, and the magnetic ring 6 is arranged on the core tube 9. According to the non-independent suspension cylinder with the built-in length measuring sensor, the displacement sensor embedded in the cylinder is used for detecting the displacement of the cylinder and transmitting signals to the controller, wherein the telescopic rod of the displacement sensor is arranged in the core tube, the detection magnetic ring is arranged on the core tube, and the telescopic rod and the core tube are relatively displaced in the movement process of the cylinder, so that the displacement of the cylinder can be detected through the magnetic ring, when the displacement of the cylinder is in a specified middle position, the displacement sensor sends signals to the controller, so that a lifting electromagnetic valve in the suspension valve for controlling the action of the cylinder is powered off, the lifting action of the cylinder is stopped, and the leveling function of the frame is completed; the displacement sensor can detect the travel of the piston relative to the cylinder barrel of the oil cylinder in real time, and the travel information can support an operator or a control system to control the crane, for example: the accurate leveling of the crane chassis is realized, and the telescopic stroke amount of the suspension cylinder is properly regulated according to the road surface condition reflected by the stroke information, so that the running performance of the crane chassis is improved, and better experiences such as comfort and reliability can be brought to a driver.
A non-independent suspension cylinder with a built-in length measuring sensor is shown in fig. 1, and one end of the displacement sensor 2 is fixed on a cylinder bottom 5 through a fixed support 3. The fixed support 3 is fixed on the cylinder bottom 5 through bolts 4. The bolt 4 is embedded in the cylinder bottom. The displacement sensor is arranged on the fixed support, and the fixed support is connected with the cylinder bottom through the bolts, wherein the bolts are embedded in the cylinder bottom to avoid interference with other positions.
The non-independent suspension cylinder with the built-in length measuring sensor as shown in fig. 1 further comprises a through hole 8 for increasing the through flow of the cylinder, and the through hole 8 is arranged on the piston 7 and the core tube 9. Because the displacement sensor is arranged in the core tube, the through flow rate of the suspension system can be influenced, through holes are added on the core tube and the piston, oil can flow into the oil cavity through the through holes of the piston, and the through flow rate of the oil cylinder is increased, so that the flow rate requirement of the suspension oil system is ensured.
The non-independent suspension cylinder with the built-in length measuring sensor is shown in fig. 1, joint bearings 1 connected with a vehicle frame and an axle are arranged at two ends of the non-independent suspension cylinder, and the joint bearings 1 are arranged on the vehicle frame and the axle through pin shafts.
The non-independent suspension cylinder with the built-in length measuring sensor can detect the travel of the piston relative to the cylinder barrel of the cylinder in real time, has good reliability and stability and high accuracy of the displacement sensor, can support an operator or a control system to control the crane, and improves the travelling performance of the chassis of the crane; the through-flow holes are formed in the core tube and the piston in the oil cylinder, so that the through-flow of the oil cylinder is increased, and the flow requirement of the hydro-pneumatic suspension hydraulic system is met.
Finally, it should be noted that: the foregoing description is only a preferred example of the present utility model and is not intended to limit the present utility model, but although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a non-stand alone type suspension cylinder of built-in survey length sensor which characterized in that: the device comprises a displacement sensor (2) for measuring the stroke of a piston (7), wherein the displacement sensor (2) is embedded in a non-independent suspension cylinder, two ends of the non-independent suspension cylinder are provided with joint bearings (1) connected with a frame and an axle, and the device further comprises a through hole (8) for increasing the through flow of the cylinder.
2. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 1, wherein: one end of the displacement sensor (2) is fixed on the cylinder bottom (5) through the fixed support (3), the other end of the displacement sensor (2) is a telescopic rod, and a magnetic ring (6) matched with the telescopic rod is arranged on the piston (7).
3. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 2, wherein: the fixed support (3) is fixed on the cylinder bottom (5) through bolts (4).
4. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 3, wherein: the bolt (4) is embedded and arranged at the bottom of the cylinder.
5. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 2, wherein: the piston (7) is internally provided with a core tube (9), the telescopic rod moves in the core tube (9), and the magnetic ring (6) is arranged on the core tube (9).
6. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 5, wherein: the through-flow hole (8) is arranged on the piston (7) and the core tube (9).
7. A non-freestanding suspension cylinder with a built-in length measuring sensor as claimed in claim 1, wherein: the knuckle bearing (1) is arranged on the frame and the axle through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223556474.3U CN219159420U (en) | 2022-12-30 | 2022-12-30 | Non-independent suspension cylinder with built-in length measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223556474.3U CN219159420U (en) | 2022-12-30 | 2022-12-30 | Non-independent suspension cylinder with built-in length measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219159420U true CN219159420U (en) | 2023-06-09 |
Family
ID=86637042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223556474.3U Active CN219159420U (en) | 2022-12-30 | 2022-12-30 | Non-independent suspension cylinder with built-in length measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219159420U (en) |
-
2022
- 2022-12-30 CN CN202223556474.3U patent/CN219159420U/en active Active
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