CN204506682U - Resistance-type vehicle load sensor - Google Patents
Resistance-type vehicle load sensor Download PDFInfo
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- CN204506682U CN204506682U CN201520097935.6U CN201520097935U CN204506682U CN 204506682 U CN204506682 U CN 204506682U CN 201520097935 U CN201520097935 U CN 201520097935U CN 204506682 U CN204506682 U CN 204506682U
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- rotating shaft
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- torsion spring
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Abstract
The utility model discloses a kind of resistance-type vehicle load sensor, comprise rotating shaft, rope, multiturn potentiometer and signaling conversion circuit plate; Described rotating shaft is arranged on below vehicle frame by pillar stiffener, and by bearing assemble between rotating shaft and pillar stiffener, rotating shaft is set with reduction torsion spring, and one end of reduction torsion spring is fixed in rotating shaft, and the other end of reduction torsion spring is fixing on the support columns; The S. A. of one end connection multiturn potentiometer of pillar stiffener is stretched out in rotating shaft, the input end of the mouth connection signal change-over circuit plate of multiturn potentiometer; One end of described rope is fixed in the rotating shaft between two pillar stiffeners, and the other end of rope is fixed in vehicle bridge.The utility model can not only realize the Measurement accuracy to vehicle load; And when vehicle frame suddenly downwards or double swerve time, soft flexible couplings rope can play buffer action to impulsive force, effectively prevent and produces impulse force because vehicle jolts and cause the generation of sensor degradation phenomenon, substantially increase the service life of sensor.
Description
Technical field
The utility model relates to sensor technical field, particularly a kind of vehicle load sensor.
Background technology
In carrier, for ensureing the safety of Road Transportation, the loading mass of vehicle generally has strict regulation, and overweight not only can exist hidden trouble to vehicle safety, and also there is great threat to life safety; Particularly goods carrying vehicle, due to overweight and traffic accident that is that cause can be found everywhere, brings heavy losses to the security of the lives and property of people.Traditional measurement car and the method for cargo weight car are reached the place that weighbridge is housed to carry out weighing or estimating, not only trouble and also accuracy not high; The installation and maintenance of weighbridge also needs higher cost in addition.
In recent years along with the develop rapidly of sensing technology, the load measuring sensor be applied on vehicle moves towards market gradually.At present, load measuring sensor mostly is the displacement pickup of the spacing for measuring vehicle frame and vehicle bridge, the kind of these sensors has magnetic inductive displacement pickup, capacitive displacement transducer and resistor type displacement sensor, and namely the principle of work of these sensors is that the change of the spacing by measuring vehicle frame and vehicle bridge obtains load-carrying weight signal.During installation, sensor body is arranged in the vehicle bridge of automobile by mounting structure, the measuring head of sensor then directly and the vehicle frame of automobile abut against; For making movement parts reset, retracing spring being installed usually between movement parts and vehicle frame movement parts is realized.
But, all there is a defect in these sensors above-mentioned, that is: automobile is in traveling process, inevitably run into the situation of jolting, now, just overshoot phenomenon can be there is between vehicle frame and vehicle bridge, distance between vehicle bridge and vehicle frame can sharply be compressed at short notice, this sensor that rigidity will inevitably be caused to be arranged on vehicle bridge and workshop is subject to the impact extruded of moment, thus cause mounting structure to deform and scrap, measuring head, the sensor body of even whole sensor all can be damaged and cause using.
Utility model content
The utility model technical issues that need to address be to provide a kind of can Measurement accuracy vehicle load and vehicle frame will be caused to move down rapidly and the vehicle load sensor be damaged, to improve the service life of sensor because of the factor such as to jolt.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
Resistance-type vehicle load sensor, comprises rotating shaft, the multiturn potentiometer of the rope be wound in rotating shaft, the induction rotating shaft anglec of rotation and resistance signal is converted to the signaling conversion circuit plate that standard signal exports; Described rotating shaft is arranged on below vehicle frame by two pillar stiffeners being vertically set on vehicle frame bottom, bearing assemble is passed through between rotating shaft and pillar stiffener, rotating shaft is set with the reduction torsion spring of reset rotating shaft, one end of reduction torsion spring is fixed in rotating shaft, and the other end of reduction torsion spring is fixing on the support columns; The S. A. of one end connection multiturn potentiometer of pillar stiffener is stretched out in described rotating shaft, the input end of the mouth connection signal change-over circuit plate of multiturn potentiometer; One end of described rope is fixed in the rotating shaft between two pillar stiffeners, and the other end of rope is fixed in vehicle bridge.
Above-mentioned resistance-type vehicle load sensor, the middle part that described rotating shaft is positioned at two pillar stiffeners is provided with the bobbin be fixedly connected with rotating shaft, and the diameter at bobbin two ends is greater than the diameter in the middle part of bobbin; Described rope is wound on bobbin.
Above-mentioned resistance-type vehicle load sensor, is positioned at the draw ring vehicle bridge immediately below bobbin being fixedly installed stationary rope end.
Above-mentioned resistance-type vehicle load sensor, described rope is the one in cotton rope, steel rope or chain.
Owing to have employed above technical scheme, acquired by the utility model, technological advance is as follows.
Central principle of the present utility model is adopt Hard link between sensor and vehicle frame, then the form that is flexible coupling is adopted between sensor and vehicle bridge, namely adopt the flexible ropes connecting sensor that can be wound in rotating shaft and vehicle bridge, the Measurement accuracy to vehicle load can not only be realized; And when vehicle frame suddenly downwards or double swerve time, flexible ropes can play buffer action to impulsive force, effectively prevent and produces impulse force because vehicle jolts and cause the generation of sensor degradation phenomenon, substantially increase the service life of sensor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1. vehicle frame, 11. pillar stiffeners, 2. vehicle bridge, 21. draw rings, 3. sensor, 31. rotating shafts, 32. ropes, 33. bobbins, 34. multiturn potentiometers, 35. reduction torsion springs, 36. signaling conversion circuit plates.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
Resistance-type vehicle load sensor, its structure as shown in Figure 1, comprises rotating shaft 31, rope 32, bobbin 33, multiturn potentiometer 34, reduction torsion spring 35 and signaling conversion circuit plate 36.
Rotating shaft 31 is between vehicle frame and vehicle bridge, and parallel vehicle frame and vehicle bridge are arranged.The bottom of vehicle frame is vertically installed with two pillar stiffeners 11, passes through bearing assemble between rotating shaft and pillar stiffener.
The middle part that rotating shaft is positioned at two pillar stiffeners is provided with bobbin 33, and bobbin is fixedly connected with rotating shaft.The diameter at bobbin two ends is greater than the diameter in the middle part of bobbin, and rope 32 is wound on bobbin.The setting of bobbin, sticks in the bearing of pillar stiffener for preventing rope and causes sensor degradation in motion process; On the other hand, rope can also be concentrated on the middle part of rotating shaft, improve the sensitivity of rotating shaft induction load-carrying, improve the accuracy rate of sensor further.
In the utility model, rope is soft materials, can be wrapped in rotating shaft, can be cotton rope, steel rope or chain etc.One end of rope 32 is fixed on the bobbin between two pillar stiffeners, and be positioned in the vehicle bridge 2 immediately below bobbin 33 and be fixedly installed draw ring 21, the other end of rope is fixed on draw ring.
Reduction torsion spring 35 is sleeved in rotating shaft, for the reset rotating shaft when downward distress resolves.One end of reduction torsion spring is fixed in rotating shaft; The other end of reduction torsion spring is fixed on pillar stiffener 11, and the other end of certain reduction torsion spring also can be fixed on vehicle frame.
Multiturn potentiometer 34 is arranged on the support below vehicle frame, and its S. A. and rotating shaft are positioned on same axis, for responding to the anglec of rotation of rotating shaft.When rotating shaft rotates, can there is corresponding change in the resistance value of multiturn potentiometer.
The input end of signaling conversion circuit plate 36 connects the mouth of multiturn potentiometer 34, and the resistance signal for being exported by circle potential device 34 is converted to standard signal and exports, thus obtains the weight information of vehicle.
Principle of work of the present utility model is: when goods loaded onto by vehicle, vehicle frame can move down under the weight of goods, now, vehicle frame and interaxle Distance Shortened, the flexible ropes be connected between rotating shaft and vehicle bridge also shortens thereupon, flexible ropes is wound on bobbin under the effect of torsion spring, and synchronous rotary is done in the coiling action that flexible ropes is followed in rotating shaft simultaneously, the change in displacement of vertical direction between vehicle frame and vehicle bridge is converted to the anglec of rotation change of rotating shaft horizontal direction; The rotating shaft rotated drives the S. A. of multiturn potentiometer to rotate, thus realizes the object changing multiturn potentiometer output resistance; After signaling conversion circuit plate receives change in resistance, be converted into corresponding load signal, the weight of institute's cargo in vehicle can be obtained.
Claims (4)
1. resistance-type vehicle load sensor, is characterized in that: comprise rotating shaft (31), the multiturn potentiometer (34) of the rope (32) be wound in rotating shaft, the induction rotating shaft anglec of rotation and resistance signal is converted to the signaling conversion circuit plate (36) that standard signal exports; Described rotating shaft (31) is arranged on vehicle frame (1) below by two pillar stiffeners (11) being vertically set on vehicle frame bottom, bearing assemble is passed through between rotating shaft and pillar stiffener, rotating shaft is set with the reduction torsion spring (35) of reset rotating shaft, one end of reduction torsion spring is fixed in rotating shaft, and the other end of reduction torsion spring is fixed on pillar stiffener (11); The S. A. of one end connection multiturn potentiometer (34) of pillar stiffener is stretched out in described rotating shaft (31), the input end of mouth connection signal change-over circuit plate (36) of multiturn potentiometer (34); One end of described rope (32) is fixed in the rotating shaft between two pillar stiffeners, and the other end of rope is fixed in vehicle bridge (2).
2. resistance-type vehicle load sensor according to claim 1, is characterized in that: the middle part that described rotating shaft is positioned at two pillar stiffeners is provided with the bobbin (33) be fixedly connected with rotating shaft, and the diameter at bobbin two ends is greater than the diameter in the middle part of bobbin; Described rope is wound on bobbin.
3. resistance-type vehicle load sensor according to claim 2, is characterized in that: be positioned at the draw ring (21) vehicle bridge (2) immediately below bobbin (33) being fixedly installed stationary rope end.
4. the resistance-type vehicle load sensor according to any one of claims 1 to 3, is characterized in that: described rope is the one in cotton rope, steel rope or chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097935.6U CN204506682U (en) | 2015-02-11 | 2015-02-11 | Resistance-type vehicle load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097935.6U CN204506682U (en) | 2015-02-11 | 2015-02-11 | Resistance-type vehicle load sensor |
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| Publication Number | Publication Date |
|---|---|
| CN204506682U true CN204506682U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520097935.6U Active CN204506682U (en) | 2015-02-11 | 2015-02-11 | Resistance-type vehicle load sensor |
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| CN (1) | CN204506682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530482A (en) * | 2019-07-25 | 2019-12-03 | 安徽中凯信息产业股份有限公司 | A kind of displacement-type vehicle load sensor |
-
2015
- 2015-02-11 CN CN201520097935.6U patent/CN204506682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530482A (en) * | 2019-07-25 | 2019-12-03 | 安徽中凯信息产业股份有限公司 | A kind of displacement-type vehicle load sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170831 Address after: Jinshi Industrial Park, No. 368 Shijiazhuang City, Hebei province 050221 West Bridge No. 2 Xinshi North Road, building 410 room Patentee after: Hebei heavy Technology Co., Ltd. Address before: Jinshi Industrial Park, No. 368 Shijiazhuang City, Hebei province 050221 West Bridge Xinshi North Road, No. 2 Simon 410 Patentee before: Li Xiaogang |
|
| TR01 | Transfer of patent right |