CN108398175B - Sensor, system and method for measuring load of automobile - Google Patents
Sensor, system and method for measuring load of automobile Download PDFInfo
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- CN108398175B CN108398175B CN201810248610.1A CN201810248610A CN108398175B CN 108398175 B CN108398175 B CN 108398175B CN 201810248610 A CN201810248610 A CN 201810248610A CN 108398175 B CN108398175 B CN 108398175B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000006698 induction Effects 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000001939 inductive effect Effects 0.000 claims abstract description 4
- 238000005253 cladding Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 description 18
- 239000002699 waste material Substances 0.000 description 17
- 239000002689 soil Substances 0.000 description 12
- 230000005389 magnetism Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
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- 238000003860 storage Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
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- 238000009412 basement excavation Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/12—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having electrical weight-sensitive devices
Abstract
The invention relates to a sensor, a system and a method for measuring the load of a vehicle, wherein the sensor is arranged on a vehicle frame and a vehicle axle; the sensor comprises a swinging member rotatably assembled with the first fixing member; the magnetic piece is arranged on the swinging piece and rotates along with the swinging of the swinging piece; the magnetic induction piece is arranged on the first fixing piece and used for inducing the magnetic piece; the connecting rod piece is assembled with the second fixing piece through the first joint bearing at one end and the swinging piece through the second joint bearing at the other end; when the relative position between the frame and the axle in the vertical direction changes, the connecting rod piece can drive the swinging piece to swing so as to enable the magnetic piece to rotate, and the induction data obtained by induction of the magnetic induction piece indicates the relative position relationship between the frame and the axle in the vertical direction, so that the sensor has the advantages of strong applicability and accurate automobile load measurement data.
Description
Technical Field
The invention relates to the technical field of induction, in particular to a sensor, a system and a method for measuring the load of a car.
Background
At present, with increasing town degrees, land construction is spread over various places. The waste residue soil generated by the excavation is transported from the generation site to a designated waste residue soil accumulation site by the car. In the concrete calculation of the waste residue soil transportation cost, the cost is usually determined by the transportation pass. For example, a forty-ton heavy car is loaded with waste muck from a waste muck generation site, then transported to a designated waste muck accumulation site for unloading, and then returned, thus charging back and forth for 200 yuan at a time. The transportation cost of the waste residue soil is counted manually, and the statistics personnel carry out the loading confirmation of the waste residue soil of the automobile at the place where the waste residue soil is generated, and after the automobile finishes unloading and returning the waste residue soil, the statistics personnel adds 1 to the transportation time of the automobile, and the transportation time is accumulated every time when the transportation time is increased.
However, due to the technical deficiency, the statistics personnel cannot know whether the loading of the waste residue soil completely meets the full-load standard of the automobile, whether the automobile really arrives at the designated waste residue soil accumulation site for unloading after being transported, and the like, so that the possibility that the automobile is transported without being fully loaded, the possibility that the automobile is unloaded without arriving at the designated waste residue soil accumulation site, and the like are caused, and the overall construction cost cannot be effectively controlled.
Disclosure of Invention
The invention aims to provide a vehicle load measuring sensor, which has the advantage of effective and accurate vehicle load measuring data.
The above object of the present invention is achieved by the following technical solutions: a sensor for use in automotive load measurement, comprising: a first fixing member for fixing to the frame; a second fixing member for fixing to the axle; a swinging member rotatably fitted with the first fixing member; the magnetic piece is arranged on the swinging piece and rotates along with the swinging of the swinging piece; the magnetic induction piece is arranged on the first fixing piece and used for inducing the magnetic piece; the connecting rod piece is assembled with the second fixing piece through the first joint bearing at one end and the swinging piece through the second joint bearing at the other end; when the relative position between the frame and the axle in the vertical direction changes, the connecting rod piece can drive the swinging piece to swing so that the magnetic piece rotates, and the induction data obtained by induction of the magnetic induction piece indicates the relative position relationship between the frame and the axle in the vertical direction.
Through the scheme, when waste garbage residue soil is added to the frame of the automobile, the frame is close to the axle due to the waste garbage residue soil, at the moment, the relative position change between the frame and the axle in the vertical direction drives the swinging part to swing through the connecting rod piece, so that the magnetic part on the swinging part is driven to rotate, the magnetic field emitted by the magnetic part is changed, the induction data induced by the magnetic induction part is changed, the induction data obtained by induction is indicated to the relative position relationship between the frame and the axle in the vertical direction, so that the current automobile loading degree is obtained, the swinging part is connected with the connecting rod piece through the first joint bearing, and the connecting rod piece is connected with the second firmware through the second joint bearing, and due to the flexibility of the joint bearing, the swinging factor which possibly influences the problem of detection accuracy in the driving process can be effectively overcome, on one hand, the sensor can be suitable for different road conditions, on the other hand, the relative position change between the frame and the axle in the vertical loading direction can be reflected by the swinging part relatively accurately, and the sensor has the advantages of being suitable for measuring the data.
Preferably: the first fixing member includes: the magnetic induction device comprises a first fixing plate and a shell, wherein the first fixing plate is used for being fixed on a frame, and the shell is fixedly connected with the first fixing plate and provided with a cavity for accommodating the magnetic induction piece; one side of the shell, which is away from the first fixing plate, is provided with a plurality of through bearings which are coaxially arranged, the swinging member is provided with a rotating shaft, one end of the rotating shaft penetrates through each through bearing, the other end of the rotating shaft is fixed on the swinging member, so that the swinging member is rotationally connected with the first fixing member, and the magnetic member is arranged at one end of the rotating shaft, which is close to the first fixing plate.
Through adopting above-mentioned scheme, rotate through pivot and a plurality of through bearing between swing piece and the first mounting to fix the magnetism piece in the pivot, thereby make the magnetism change of magnetism piece change along with the rotation of pivot only, and have the advantage that makes the swing piece have the rotation nimble, and the pile up of through bearing is established, can guarantee pivot pivoted stationarity.
Preferably: the shell is provided with a first convex part; the through bearings are arranged in the first accommodating cavity of the first convex part; the swinging member includes: the swing arm support is fixed on the swing arm support, one end of the swing arm support is fixedly connected with the other end of the swing arm support through a swing arm fixedly connected with a second joint bearing, the second convex part is arranged on the swing arm support, the rotating shaft is fixed on the swing arm support and is coaxially arranged with the second convex part, the second convex part is provided with a second accommodating cavity, and the first convex part is movably nested in the second accommodating cavity.
By adopting the scheme, the first protruding part on the shell and the second protruding part on the swing arm support are movably nested, and on one hand, the first protruding part is used for being matched with the through bearing and the rotating shaft, so that the accuracy of load measurement is further ensured; on the other hand, the anti-dust device is used for playing a role in dust prevention on the rotary connection of the through bearing and the rotating shaft so as to ensure the flexibility of rotation between the through bearing and the rotating shaft.
Preferably: the swing arm is provided with a plurality of mounting holes which are arranged at intervals so that the second joint bearing is fixed at different positions of the swing arm.
Through adopting above-mentioned scheme, a plurality of mounting holes that set up on the swing arm for change the mounted position of second joint bearing, thereby increase the adaptability of first mounting and second mounting mounted position, be used for simultaneously changing the relative position change in vertical orientation between frame and the axletree and the corresponding relation of the response data of magnetism response piece.
Preferably: the first joint bearing and the second joint bearing each comprise: the movable inner ring with the outer sphere, cladding the movable inner ring, cladding outer ring with the inner sphere and locate the double-screw bolt on the cladding outer ring, the second mounting includes: the second fixing plate is used for being fixed on the axle, and the bent screw is arranged on one end of the second fixing plate, and the other end of the bent screw penetrates through the movable inner ring.
By adopting the scheme, the bent screw is used for increasing the adaptability of the second fixing piece to be installed on the axle, and simultaneously, the installation of the second joint bearing and the connecting rod piece is also facilitated.
Preferably: and a counter bore is formed in one side, close to the axle, of the second fixing plate, and a convex ring which is rotationally arranged in the counter bore is arranged at one end, far away from the first joint bearing, of the bent screw.
Through adopting above-mentioned scheme, the curved screw passes through the bulge loop rotation and locates on the second fixed plate for increase the movable angle change scope between connecting rod spare and the axletree, thereby increased swinging member and connecting rod spare adaptation frame and the ability of axletree between different position change, so that make the car can not damage the sensor in the driving process.
Preferably: the magnetic induction piece is a Hall element or a magnetic resistance, a circuit board is fixed in the cavity of the shell, the magnetic induction piece is arranged on the circuit board, a plurality of contact pins are arranged on the circuit board, and the contact pins are used for being electrically connected with an external interface.
Through adopting above-mentioned scheme, the circuit board is fixed in the cavity of shell to play the guard action to the circuit board, contact pin on the circuit board is used for being connected with external interface electricity, so that set up the magnetism on the circuit board and feel the piece and can last effectual response to the magnetism piece, and whether be in operating condition to the circuit board through the control, thereby effectual assurance magnetism is felt the life of piece.
Preferably: the connecting rod piece is: one end of the screw rod is fixedly connected with the stud of the first joint bearing, and the other end of the screw rod penetrates through the movable inner ring of the second joint bearing.
Through adopting above-mentioned scheme, the connecting rod piece adopts the screw rod to make, is convenient for be connected with first joint and second joint on the one hand, on the other hand is convenient for effectually turn into the swing position change of swinging member with the relative position relation between frame and the axletree in vertical direction.
The invention also aims to provide a system for measuring the load of the automobile, which is used for effectively and accurately judging the load degree of the automobile, so that the system has the advantage of effectively controlling the construction cost.
The above object of the present invention is achieved by the following technical solutions: a system for measuring the load of a vehicle comprises the sensor and a processor connected with the sensor and used for judging the current load degree of the vehicle according to an induction signal induced by the sensor.
The invention also aims to provide a method for measuring the load of the automobile, which is used for effectively and accurately judging the load degree of the automobile, so that the method has the advantage of effectively controlling the construction cost.
The above object of the present invention is achieved by the following technical solutions: a method for vehicle load measurement, the method utilizing the system described above, the method comprising: when the magnetic part is magnetically changed along with the swing of the swing part, the magnetic induction part generates induction signals, and the processor obtains the current automobile load degree corresponding to the current induction data indicated by the induction signals according to the corresponding relation between the pre-stored induction data and the automobile load degree.
In summary, the invention has the following beneficial effects:
1. the sensor converts the relative position change of the vehicle frame and the vehicle axle in the vertical direction into the rotation position change of the magnetic part, so that the magnetic induction part induces the magnetic change of the magnetic part to indicate the load degree of the current vehicle, and the sensor has the advantage of high accuracy of the load degree of the vehicle;
2. the swinging piece is connected with the connecting rod piece through the first joint bearing and the second joint bearing respectively, so that the accuracy of converting the relative position change of the vehicle frame and the vehicle axle in the vertical direction into the rotation position change of the magnetic piece is effectively ensured, and meanwhile, the sensor is also suitable for different transportation road conditions and is not damaged.
Drawings
FIG. 1 is a schematic illustration of the location of sensors mounted on a vehicle frame and axle of an embodiment of the present invention;
FIG. 2 is a schematic plan view of a sensor according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a first stationary member and a swinging member according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an exploded construction of a sensor in an embodiment of the invention;
FIG. 5 is a schematic view of the structure of a knuckle bearing in an embodiment of the invention;
fig. 6 is a schematic structural view of a second fixing member according to an embodiment of the present invention.
Reference numerals: 1. a frame; 2. An axle; 3. a first fixing member; 31. a first fixing plate; 32. a housing; 321. a first convex portion; 322. a cavity; 33. a first screw; 34. penetrating the bearing; 4. a second fixing member; 41. a second fixing plate; 411. countersink; 42. bending a screw; 421. a convex ring; 5. a swinging member; 51. swing arm frame; 52. swing arms; 521. a mounting hole; 53. a second convex portion; 54. a rotating shaft; 55. a second screw; 56. a third screw; 57. a fourth screw; 6. a magnetic member; 7. a magnetic induction member; 8. a connecting rod piece; 81. a screw; 82. a first nut; 83. a second nut; 84. a third nut; 9. a knuckle bearing; 91. a first knuckle bearing; 92. a second knuckle bearing; 93. a movable inner ring; 94. coating an outer ring; 95. a stud; 10. a circuit board; 11. a contact pin; 12. a spring washer; 13. a flat gasket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
The present embodiment provides a sensor for measuring the load of an automobile, as shown in fig. 1 to 6, the sensor of the present invention is provided on a frame 1 and an axle 2 of the automobile, specifically, as shown in fig. 1 to 3, the sensor includes: a first fixing member 3 for fixing to the frame 1; a second fixing member 4 for fixing to the axle 2; a swinging member 5 rotatably fitted with the first fixing member 3; a magnetic member 6 provided on the swinging member 5 and rotated in response to the swinging of the swinging member 5; a magnetic induction member 7 provided on the first fixing member 3 for inducing the magnetic member 6; and the two ends of the connecting rod piece 8 are respectively assembled with the second fixing piece 4 and the swinging piece 5 through a plurality of joint bearings 9, when the relative position between the frame 1 and the axle 2 in the vertical direction changes, the connecting rod piece 8 can drive the swinging piece 5 to swing so as to enable the magnetic piece 6 to rotate, and induction data obtained by induction of the magnetic induction piece 7 indicates the relative position relationship between the frame 1 and the axle 2 in the vertical direction.
Specifically, the knuckle bearings 9 are provided in two, of which a first knuckle bearing 91 is provided for fitting with the second fixing member 4 and a second knuckle bearing 92 is provided for fitting with the swinging member 5.
When waste garbage residue is added to the frame 1 of the automobile, the frame 1 is close to the axle 2 due to the waste garbage residue, at the moment, the relative position change between the frame 1 and the axle 2 in the vertical direction drives the swinging member 5 to swing through the connecting rod member 8, so that the magnetic member 6 on the swinging member 5 is driven to rotate, the magnetic field emitted by the magnetic member 6 is changed, the induction data induced by the magnetic induction member 7 is changed, the induction data obtained by induction are indicated to the relative position relationship between the frame 1 and the axle 2 in the vertical direction, so that the current loading degree of the automobile is obtained, the swinging member 5 is connected with the connecting rod member 8 through the first joint bearing 91, and the connecting rod member 8 is connected with the second firmware through the second joint bearing 92, and the joint bearing 9 has good flexibility, so that the sensor can adapt to different road conditions, and the relative position change between the frame 1 and the axle 2 in the vertical direction can be reflected through the swinging member 5 more accurately, so that the sensor has the advantages of high applicability and accurate loading measurement data of the automobile.
Specifically, as shown in fig. 3 and 4, the first fixing member 3 includes: a first fixing plate 31 for fixing to the vehicle frame 1, and a housing 32 fixedly connected to the first fixing plate 31 and having a cavity 322 for accommodating the magnetic sensor 7; the first fixing plate 31 can be fixed on the frame 1 by means of screws or welding, and the shell 32 is fixed on the first fixing plate 31 by means of a plurality of first screws 33, so that the shell 32 can be conveniently disassembled and assembled.
Specifically, a plurality of through bearings 34 are coaxially disposed on a side of the housing 32 facing away from the first fixing plate 31, in this embodiment, two through bearings 34 are disposed, a rotating shaft 54 with one end penetrating through each through bearing 34 and the other end fixed on the swinging member 5 is disposed on the swinging member 5, the rotating shaft 54 is used to rotationally connect the swinging member 5 with the first fixing plate 3, in this embodiment, the magnetic member 6 is disposed on one end of the rotating shaft 54 near the first fixing plate 31, so that the magnetic member 6 magnetically changes along with the rotation of the rotating shaft 54.
In the present embodiment, the through bearing 34 is a rolling bearing, and in other embodiments, the through bearing 34 is a sliding bearing.
Specific: a first protrusion 321 having a first accommodating chamber is provided on the housing 32; the plurality of through bearings 34 are arranged in the first accommodating cavity of the first convex part 321; the swinging member 5 includes: the swing arm frame 51, one end is fixed on the swing arm frame 51, the other end passes through the swing arm 52 with second joint bearing 92 fixed connection, and locate the second convex part 53 on the swing arm frame 51, wherein, swing arm 52 one end passes through a plurality of second screws 55 and swing arm frame 51 fixed connection, the other end passes through third screw 56 and first joint bearing 91 fixed connection, pivot 54 passes through fourth screw 57 to be fixed on the swing arm frame 51 and with the setting of second convex part 53 coaxial line, second convex part 53 has the second accommodation chamber, second accommodation intracavity movable nested first convex part 321, first convex part 321 and second convex part 53 are used for further guaranteeing the accuracy of converting the relative position change between frame 1 and the axletree 2 into the rotation position change of magnetic part 6.
Specific: the swing arm 52 is provided with a plurality of mounting holes 521 which are arranged at intervals, and the mounting holes 521 are used for fixing the second joint bearing 92 at different positions of the swing arm 52 so as to increase the adaptability of the mounting positions of the first fixing piece 3 and the second fixing piece 4.
Specific: in the present embodiment, as shown in fig. 5, the knuckle bearing 9 includes: a movable inner ring 93 having an outer spherical surface, a covered outer ring 94 having an inner spherical surface covering the movable inner ring 93, and a stud 95 provided on the covered outer ring 94.
Specifically, as shown in fig. 4 and 5, the second fixing member 4 includes: the second fixing plate 41 is used for being fixed on the axle 2, and the bent screw 42 is arranged on the second fixing plate 41 at one end, the other end of the bent screw 42 penetrates through the movable inner ring 93 of the first joint bearing 91, wherein the bent screw 42 is fixedly connected with the first joint bearing 91 through a plurality of first nuts 82, the bent screw 42 is used for increasing the adaptability of the second fixing piece 4 to be installed on the axle 2, and meanwhile, the first joint bearing 91 and the connecting rod piece 8 are convenient to install.
Specifically, as shown in fig. 2 and 4, a counter bore 411 is disposed on a side of the second fixing plate 41 near the axle 2, wherein a convex ring 421 is rotatably disposed in the counter bore 411 at an end of the bent screw 42 away from the first joint bearing 91, and the convex ring 421 is rotatably disposed on the second fixing plate 41, so as to increase a range of variation of a movable angle between the connecting rod 8 and the axle 2, and thus increase the capability of the swinging member 5 and the connecting rod 8 for adapting to different position variations between the frame 1 and the axle 2, so that the sensor is not damaged during the running process of the automobile.
Specifically, as shown in fig. 3, in this embodiment, the magnetic sensing element 7 is a hall element, in other embodiments, the magnetic sensing element 7 is a magnetic resistance, the circuit board 10 is fixed in the cavity 322 of the housing 32, the magnetic sensing element 7 is disposed on the circuit board 10, a plurality of pins 11 are further disposed on the circuit board 10, and the pins 11 are electrically connected with an external interface, so that the magnetic sensing element 7 disposed on the circuit board 10 can continuously and effectively sense the magnetic element 6, and whether the magnetic sensing element 7 is in a working state is controlled by controlling whether the circuit board 10 is electrified, thereby effectively ensuring the service life of the magnetic sensing element 7.
Specifically, as shown in fig. 4, the connection rod member 8 is: one end of the screw rod 81 is fixedly connected with the stud 95 of the first joint bearing 91, the other end of the screw rod 81 penetrates through the movable inner ring 93 of the second joint bearing 92, one end of the screw rod 81 is fixedly connected with the second joint bearing 92 through a plurality of second nuts 83, and the other end of the screw rod 81 is fixedly connected with the first joint bearing 91 through a third nut 84, so that the connecting rod piece 8 is convenient to assemble and disassemble.
In this embodiment, the first screw 33, the second screw 55, the third screw 56 and the fourth screw 57 are all sleeved with the spring washer 12 and the flat washer 13, and the spring washer 12 and the flat washer 13 have a locking effect, so that the stability of installation of each screw is improved.
The embodiment also provides a system for measuring the load of the automobile, which comprises the sensor and a processor which is connected with the sensor and used for judging the current load degree of the automobile according to the induction signal obtained by induction of the sensor.
Specifically, the induction signal obtained by the induction of the magnetic induction piece 7 of the sensor can be shaped, amplified, filtered and the like through a primary circuit at the front end of the processor, and after the processed induction signal is acquired by the processor, the current loading degree of the automobile is obtained according to the corresponding relation between the magnetic induction piece 7 pre-stored in the storage medium and the loading degree of the automobile.
Of course, the system can also comprise corresponding storage media, display modules, transmission modules and the like; the storage medium can store the corresponding relation, the current automobile load degree data and the like, the display module can display the current automobile load degree data, and the transmission module can transmit the automobile identification, the current automobile load degree data and the like to the monitoring center.
The embodiment also provides a method for measuring the load of a vehicle, which utilizes the system, and comprises the following steps: when the magnetic part 6 magnetically changes along with the swing of the swing part 5, the magnetic induction part 7 generates induction signals, and the processor obtains the current automobile load degree corresponding to the current induction data indicated by the induction signals according to the corresponding relation between the pre-stored induction data and the automobile load degree; of course, the method may also include other processing steps on the data, such as: save, display or transmit the current truck loading degree data, etc.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (6)
1. A sensor for measuring the load of a motor vehicle, comprising:
a first fixing member (3) for fixing to the frame (1);
a second fixing element (4) for fixing to the axle (2);
a swinging member (5) rotatably fitted with the first fixing member (3);
a magnetic member (6) provided on the swinging member (5) and rotating with the swinging member (5);
a magnetic induction member (7) provided on the first fixing member (3) for inducing the magnetic member (6); and a connecting rod (8) having one end assembled with the second fixing member (4) through a first joint bearing (91) and the other end assembled with the swinging member (5) through a second joint bearing (92);
when the relative position between the frame (1) and the axle (2) in the vertical direction changes, the connecting rod (8) drives the swinging piece (5) to swing so as to enable the magnetic piece (6) to rotate, and induction data obtained by induction of the magnetic induction piece (7) indicates the relative position relationship between the frame (1) and the axle (2) in the vertical direction;
the first fixing member (3) includes: a first fixing plate (31) for fixing on the frame (1), and a housing (32) fixedly connected with the first fixing plate (31) and provided with a cavity (322) for accommodating the magnetic induction piece (7); a plurality of through bearings (34) which are coaxially arranged are arranged on one side, away from the first fixing plate (31), of the shell (32), a rotating shaft (54) with one end penetrating through each through bearing (34) and the other end fixed on the swinging member (5) is arranged on the swinging member (5) so that the swinging member (5) is rotationally connected with the first fixing member (3), and the magnetic member (6) is arranged at one end, close to the first fixing plate (31), of the rotating shaft (54);
the shell (32) is provided with a first convex part (321); the through bearings (34) are arranged in the first accommodating cavity of the first convex part (321); the swinging member (5) includes: the swing arm support (51), one end of which is fixed on the swing arm support (51), the other end of which is fixedly connected with the second joint bearing (92), and a second convex part (53) arranged on the swing arm support (51), wherein the rotating shaft (54) is fixed on the swing arm support (51) and is coaxially arranged with the second convex part (53), the second convex part (53) is provided with a second accommodating cavity, and the first convex part (321) is movably nested in the second accommodating cavity;
a plurality of mounting holes (521) which are arranged at intervals and are used for fixing the second joint bearing (92) at different positions of the swing arm (52) are formed in the swing arm (52);
the first knuckle bearing (91) and the second knuckle bearing (92) each include: a movable inner ring (93) having an outer spherical surface, a cladding outer ring (94) having an inner spherical surface cladding the movable inner ring (93), and a stud (95) provided on the cladding outer ring (94), the second fixing member (4) comprising: the second fixing plate (41) is used for being fixed on the axle (2), and the bent screw (42) is arranged on one end of the second fixing plate (41) and the other end of the bent screw penetrates through the movable inner ring (93).
2. A sensor for measuring the load of a motor vehicle according to claim 1, wherein a counter bore (411) is arranged on one side of the second fixing plate (41) close to the axle (2), and a convex ring (421) which is rotatably arranged in the counter bore (411) is arranged on one end of the bent screw (42) away from the first joint bearing (91).
3. The sensor for measuring the load of the automobile according to claim 1, wherein the magnetic induction piece (7) is a hall element or a magnetic resistance, a circuit board (10) is fixed in a cavity (322) of the housing (32), the magnetic induction piece (7) is arranged on the circuit board (10), a plurality of pins (11) are arranged on the circuit board (10), and the pins (11) are used for being electrically connected with an external interface.
4. A sensor for the measurement of the load of a motor vehicle according to claim 1, characterized in that said connecting rod (8) is: one end of the screw rod (81) is fixedly connected with a stud (95) of the first joint bearing (91), and the other end of the screw rod is penetrated in a movable inner ring (93) of the second joint bearing (92).
5. A system for measuring the load of a motor vehicle, comprising a sensor according to any one of claims 1-4, and a processor connected to the sensor for determining the current load level of the motor vehicle on the basis of the sensed signal from the sensor.
6. A method for vehicle load measurement, wherein the method utilizes the system of claim 5, the method comprising: when the magnetic part (6) is magnetically changed along with the swing of the swing part (5), the magnetic induction part (7) generates induction signals, and the processor obtains the current automobile load degree corresponding to the current induction data indicated by the induction signals according to the corresponding relation between the pre-stored induction data and the automobile load degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248610.1A CN108398175B (en) | 2018-03-24 | 2018-03-24 | Sensor, system and method for measuring load of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248610.1A CN108398175B (en) | 2018-03-24 | 2018-03-24 | Sensor, system and method for measuring load of automobile |
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| CN108398175A CN108398175A (en) | 2018-08-14 |
| CN108398175B true CN108398175B (en) | 2023-12-22 |
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| CN201810248610.1A Active CN108398175B (en) | 2018-03-24 | 2018-03-24 | Sensor, system and method for measuring load of automobile |
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| CN111721388A (en) * | 2020-07-02 | 2020-09-29 | 北京经纬恒润科技有限公司 | Axle load measuring device and overload alarm method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101153816A (en) * | 2006-09-30 | 2008-04-02 | 厦门雅迅网络股份有限公司 | Method for real-time detection of vehicle load |
| CN103884266A (en) * | 2014-03-27 | 2014-06-25 | 深圳市信为科技发展有限公司 | LVDT type displacement sensor and vehicle load measuring system and method |
| WO2015197668A1 (en) * | 2014-06-24 | 2015-12-30 | Batsch Waagen & Edv Gmbh & Co Kg | Method and device for verifying the payload of a truck |
| CN208012747U (en) * | 2018-03-24 | 2018-10-26 | 深圳市信为科技发展有限公司 | A kind of sensor and system for carload measurement |
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2018
- 2018-03-24 CN CN201810248610.1A patent/CN108398175B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153816A (en) * | 2006-09-30 | 2008-04-02 | 厦门雅迅网络股份有限公司 | Method for real-time detection of vehicle load |
| CN103884266A (en) * | 2014-03-27 | 2014-06-25 | 深圳市信为科技发展有限公司 | LVDT type displacement sensor and vehicle load measuring system and method |
| WO2015197668A1 (en) * | 2014-06-24 | 2015-12-30 | Batsch Waagen & Edv Gmbh & Co Kg | Method and device for verifying the payload of a truck |
| CN208012747U (en) * | 2018-03-24 | 2018-10-26 | 深圳市信为科技发展有限公司 | A kind of sensor and system for carload measurement |
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