CN114643822B - Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle - Google Patents
Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle Download PDFInfo
- Publication number
- CN114643822B CN114643822B CN202210365342.8A CN202210365342A CN114643822B CN 114643822 B CN114643822 B CN 114643822B CN 202210365342 A CN202210365342 A CN 202210365342A CN 114643822 B CN114643822 B CN 114643822B
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- rubber
- pressure monitoring
- ring
- upper connecting
- 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.)
- Active
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 117
- 238000013016 damping Methods 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012806 monitoring device Methods 0.000 claims abstract description 37
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 17
- 230000035939 shock Effects 0.000 claims description 13
- 239000000806 elastomer Substances 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000725 suspension Substances 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010727 cylinder oil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/22—Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/22—Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only
- B60G11/24—Resilient suspensions characterised by arrangement, location or kind of springs having rubber springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- 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
Abstract
The invention discloses a rubber damping device with a pressure monitoring function, a monitoring method and an engineering vehicle, comprising an upper connecting plate, a lower connecting plate, a pressure monitoring device, a mechanical connecting device, a rubber body and an annular laminate; a plurality of annular laminates are uniformly distributed in the rubber body, one end of the rubber body is connected with the pressure monitoring device, and the other end of the rubber body is connected with the lower connecting plate; the rubber body, the pressure monitoring device, the lower connecting plate and the annular laminates are integrally vulcanized into a whole; the upper connecting plate is arranged at the pressure monitoring device, the rubber body is of a hollow structure, and the mechanical connecting device penetrates through the center of the rubber body to connect the upper connecting plate with the lower connecting plate. Through the mode, the vehicle weighing device can realize the weighing function of the vehicle under the condition that the existing vehicle structure is not changed, the damping effect is equivalent to that of the prior art, the structure is simple, and the cost is low.
Description
Technical Field
The invention relates to a rubber damping device with a pressure monitoring function, belongs to the field of machinery, and can be used for a heavy-load mining dump truck, in particular to a hinged dump truck.
Background
The mining dump truck has bad road conditions, in particular to a hinged dump truck, and an elastic suspension system is required to be configured in order to reduce the influence of ground impact on the whole truck. The elastic element is a common suspension cylinder and a rubber shock-absorbing device. For rigid dump trucks with slightly better road conditions, suspension cylinders are often used, but for articulated dump trucks with particularly severe road conditions, rubber damping devices are often used. The damping effect of the rubber damping device is poorer than that of the suspension cylinder oil cylinder, but the reliability is higher, the maintenance is free, and the rubber damping device is widely applied to the field of articulated dumpers.
patent US4615513 and patent WO2012002064 respectively introduce two kinds of articulated dumper suspension rubber damping devices of similar structure, adopt multilayer steel sheet and rubber superimposed structure, the reliability is high, excellent in use effect, but above-mentioned two kinds of rubber damping device do not have the function of weighing, can't satisfy the needs of technological development.
along with the development demands of informatization, digitalization and intelligent mines, higher demands are also put forward on vehicles, and information such as oil consumption, transportation mileage, load capacity, complete machine faults and the like of the dump truck are required to be monitored in real time so as to continuously improve the working efficiency. The weighing function is generally realized through a suspension system, and if the suspension cylinder is of a suspension cylinder oil cylinder structure, the pressure change of the suspension cylinder can be directly read to calculate the load. However, the suspension of the articulated dump truck often adopts the rubber damping device in the patent, and the pressure change cannot be read, so the weighing system is a problem which is difficult to solve by the articulated dump truck. If the rubber shock absorption is changed into a suspension cylinder structure, the cost is greatly increased, and the existing space and structure are difficult to realize.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the rubber damping device with the pressure monitoring function, which can realize the real-time monitoring of the pressure and the measurement of the weight of the load carried by the vehicle through a certain algorithm.
in order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The invention discloses a rubber damping device with a pressure monitoring function, which comprises an upper connecting plate, a lower connecting plate, a pressure monitoring device, a mechanical connecting device, a rubber body and an annular laminate; a plurality of annular laminates are uniformly distributed in the rubber body, one end of the rubber body is connected with the pressure monitoring device, and the other end of the rubber body is connected with the lower connecting plate; the rubber body, the pressure monitoring device, the lower connecting plate and the annular laminates are integrally vulcanized into a whole; the upper connecting plate is arranged at the pressure monitoring device, the rubber body is of a hollow structure, and the mechanical connecting device penetrates through the center of the rubber body to connect the upper connecting plate with the lower connecting plate.
The preferable scheme of the pressure monitoring device is as follows: the pressure monitoring device comprises a base, an outer ring, an inner ring, an elastomer and a strain gauge; the outer ring of the base is provided with a step, the inner ring of the base is provided with an inner protection ring, and the inner protection ring is used for protecting the pressure testing device when the rubber body is vulcanized; the outer ring is placed on the base, a plurality of elastic bodies are uniformly arranged on the inner ring of the outer ring, and a plurality of guide grooves are further formed in the outer ring of the outer ring; the elastomer supports the inner ring, and the strain gauge is disposed on the elastomer.
The further scheme is as follows: the outer ring and the base form an integrated structure in a welding mode or an integrated casting mode; or the outer ring and the base form a split structure in a bolt connection mode.
The further scheme is as follows: the elastic body and the inner ring are not contacted with the base, and a distance L1 is reserved; the distance between the upper part of the inner ring and the upper part of the outer ring is L2; the strain gauge is arranged on the side face of the elastic body, when the upper part of the inner ring is pressed, downward movement is generated, L1 is reduced, the elastic body is elastically deformed, and resistance change of the strain gauge arranged on the side face of the elastic body is caused by deformation of the elastic body.
The preferable scheme of the upper connecting plate is as follows: the upper connecting plate comprises a top plate, a guide ring and an outer protective ring; the periphery of roof has seted up a plurality of and has gone up the mounting hole, the centre of roof has been seted up and has gone up the shoulder hole, guide ring inner circle has set up a plurality of guide posts.
The further scheme is as follows: the inner ring of the guide ring is matched with the outer ring of the outer ring, and the guide post is matched with the guide groove, so that the upper connecting plate and the pressure monitoring device only have axial relative movement and do not have circumferential relative movement; the outer protection plate is matched with the step of the outer ring of the base to protect the pressure monitoring device.
the preferable scheme of the lower connecting plate is as follows: the periphery of the lower connecting plate is provided with a plurality of lower mounting holes, and the center of the lower connecting plate is provided with a lower stepped hole.
Preferred embodiments of the mechanical connection device: the mechanical connecting device comprises a lower connecting seat, an upper connecting seat, a connecting ring and a locking nut; the lower connecting seat is matched with the lower stepped hole of the lower connecting plate, and the upper connecting seat is matched with the upper stepped hole of the upper connecting plate; the connecting ring is positioned in the rubber body and is used for connecting the lower connecting seat and the upper connecting seat; the lock nut is screwed on the upper connecting seat penetrating out of the upper connecting plate by a preset distance, so that the furthest distance between the upper connecting plate and the lower connecting plate is limited.
The invention also discloses a monitoring method based on the rubber damping device with the pressure monitoring function, which comprises the following steps:
The rubber damping device is connected with the axle through a lower mounting hole in the lower connecting plate, and is connected with the vehicle body through an upper mounting hole in the upper connecting plate; the upper part of an inner ring in the pressure monitoring device is contacted with an upper connecting plate, when the rubber damping device is under the pressure action of a vehicle body, the upper connecting plate can transmit the pressure to an elastic body in the pressure monitoring device through the inner ring, so that the elastic body is elastically deformed, the deformation of the elastic body can cause the resistance change of a strain gauge arranged on the side surface of the elastic body, the resistance change generates the current change, and then the pressure of the inner ring is measured through calculation; the weight of the load carried by the vehicle is calculated by the change in pressure monitored by a plurality of rubber shock absorbing devices arranged on the vehicle to achieve weighing.
the invention also discloses an engineering vehicle, which comprises a vehicle body, an axle and the rubber damping device with the pressure monitoring function, wherein the rubber damping device is connected between the vehicle body and the axle through a fastener.
the further scheme is as follows: the engineering vehicle is preferably an articulated dump truck.
based on the application of the technical scheme, the invention has the following beneficial effects compared with the prior art:
The structure of the rubber damping device disclosed by the invention is completely consistent with the existing structure and installation size, and meanwhile, the weighing function of a vehicle is realized, and the structure is simple. The concrete steps are as follows: the first rubber damping device and the rubber damping device can directly replace the existing rubber damping device without changing the structure and the size; secondly, the damping effect of the rubber damping device is consistent with that of the prior art, and the damping effect is not weakened due to the addition of the weighing function; thirdly, the structure is simple, the materials of the pressure monitoring device are conventional materials, the processing is simple, the strain gauge is a conventional product, the cost is low, and the manufacturing cost is not increased basically; fourth, need not at ordinary times to maintain rubber damping device maintain, maintenance-free, for hanging jar form, greatly reduced maintenance cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.
in the drawings:
FIG. 1 illustrates a connection mode of a rubber shock absorbing device according to the present invention in a vehicle;
FIG. 2 is a perspective view of a rubber vibration damper according to the present invention;
FIG. 3 is a cross-sectional view of a rubber vibration damper according to the present invention;
FIG. 4 is a perspective view of a pressure monitoring device of the rubber vibration damper according to the present invention;
FIG. 5 is a front view and a B-B side view of a pressure monitoring device of the rubber vibration damper according to the present invention;
FIG. 6 is a perspective view of an upper connecting plate of the rubber vibration damper according to the present invention;
FIG. 7 is a front view and A-A side view of an upper connecting plate of the rubber vibration damping device of the present invention;
FIG. 8 is a view showing the structure of a lower connection plate of the rubber vibration damping device according to the present invention;
FIG. 9 is a view showing the structure of a mechanical connection device of the rubber vibration damper according to the present invention;
fig. 10 is a schematic diagram of the calculation of the cargo weight of an articulated dump truck.
The attached drawings are identified: 1. a rubber damping device; 2. an upper connecting plate; 3. a lower connecting plate; 4. a pressure monitoring device; 5. a mechanical connection device; 6. a rubber body; 7. an annular laminate; 8. an axle; 9. a vehicle body; 10. a fastener; 2-1, a top plate; 2-2, a guide ring; 2-3 guide posts; 2-4, an outer guard ring; 2-5, upper mounting holes; 2-6, upper stepped hole; 2-7, upper stepped holes; 3-1, lower mounting holes; 3-2, lower stepped holes; 3-3, lower stepped holes; 4-1, a base; 4-2, an outer ring; 4-3, an inner ring; 4-4, an elastomer; 4-5, strain gage; 4-6, a guide groove; 4-7, an inner protection ring; 4-8, ladder; 5-1, a lower connecting seat; 5-2, an upper connecting seat; 5-3, a connecting ring; 5-4, locking the nut.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 shows a connection mode of the rubber shock absorbing device 1 on a vehicle, wherein the rubber shock absorbing device 1 is respectively connected with a vehicle body 9 and an axle 8 through fasteners 10, and in the running process of the vehicle, the axle 8 is influenced by a rugged road surface and can generate larger vibration, and the rubber shock absorbing device 1 can relieve or isolate the vibration generated by the axle 8 and reduce the influence of the vibration on the vehicle body 9.
The vehicle body 9 may be a frame or a suspension of the vehicle.
Fig. 2 and 3 are block diagrams of the rubber damper device 1 according to the present invention. The rubber damping device 1 consists of an upper connecting plate 2, a lower connecting plate 3, a pressure monitoring device 4, a mechanical connecting device 5, a rubber body 6 and an annular laminate 7. One end of the rubber body 6 is connected with the pressure monitoring device 4, the other end is connected with the lower connecting plate 3, a plurality of annular laminates 7 are uniformly distributed in the rubber body 6, and the annular laminates 7 can reduce the deformation of the rubber body 6 when being stressed, so that the rigidity and the compressive capacity are improved. The rubber body 6, the pressure monitoring device 4, the lower connecting plate 3 and the annular laminates 7 are integrally vulcanized into a whole. The rubber body 6 is of a hollow structure, and the mechanical connecting device 5 penetrates through the center of the rubber body 6 to connect the upper connecting plate 2 with the lower connecting plate 3. The mechanical connection means 5 limit the furthest distance between the upper connection 2 and the lower connection plate 3, preventing the rubber body 6 from receiving a large pulling force. The general rubber has good pressure bearing performance, and the rubber is easy to crack due to larger tensile force.
A preferred embodiment of the pressure monitoring device according to the above technical solution is given below:
Fig. 4 and 5 show the structure of the pressure monitoring device 4 of the rubber shock absorbing device 1, wherein the pressure monitoring device 4 consists of a base 4-1, an outer ring 4-2, an inner ring 4-3, an elastic body 4-4 and a strain gauge 4-5. The outer ring of the base 4-1 is provided with a step 4-8. The inner ring of the base 4-1 is provided with an inner protection ring 4-7, and the inner protection ring 4-7 is used for protecting the pressure testing device 4 when the rubber body 6 is vulcanized. The outer ring 4-2 is placed on the base 4-1, and can be of an integral structure with the base 4-1 or a split structure and connected together through bolts. The inner ring of the outer ring 4-2 is uniformly provided with a plurality of elastic bodies 4-4, the elastic bodies 4-4 support the inner ring 4-3, and the elastic bodies 4-4 and the inner ring 4-3 are not contacted with the base 4-1, and a distance L1 is reserved. The upper part of the inner ring 4-3 is higher than the upper part L2 of the outer ring 4-2. The elastic body 4-4 is laterally provided with a strain gage 4-5. When the upper portion of the inner ring 4-3 is pressed, a downward movement is generated, L1 becomes smaller, and the elastic body 4-4 is elastically deformed. Deformation of the elastic body 4-4 also causes a change in resistance of the strain gage 4-5 disposed on the side of the elastic body 4-4. The outer ring of the outer ring 4-2 is provided with a plurality of guide grooves 4-6.
A preferred embodiment of the above technical solution regarding the upper connection board is given below:
Fig. 6 and 7 show the structure of the upper connecting plate 2 according to the present invention, wherein the upper connecting plate 2 is composed of a top plate 2-1, a guide ring 2-2 and an outer protecting ring 2-4. A plurality of upper mounting holes 2-5 are formed in the periphery of the top plate 2-1, an upper stepped hole 2-6 and an upper stepped hole 2-7 are formed in the center of the top plate 2-1, and a plurality of guide posts 2-3 are arranged in the inner ring of the guide ring 2-2. The inner ring of the guide ring 2-2 is matched with the outer ring of the outer ring 4-2, and the guide post 2-3 is matched with the guide groove 4-6, so that the upper connecting plate 2 and the pressure monitoring device 4 only have axial relative movement and have no relative movement in the circumferential direction. The outer protecting ring 2-4 is matched with the step 4-8 to prevent external objects from entering the pressure monitoring device 4 to damage the pressure monitoring device 4.
a preferred embodiment of the above technical solution regarding the lower connection plate is given below:
Fig. 8 shows the structure of a lower connecting plate 3 of the rubber shock absorbing device 1 according to the present invention, a plurality of lower mounting holes 3-1 are formed in the peripheral ring of the lower connecting plate 3, and a lower stepped hole 3-2 and a lower stepped hole 3-3 are formed in the center of the lower connecting plate 3.
A preferred embodiment of the mechanical connection device according to the above technical solution is given below:
Fig. 9 shows the structure of the mechanical connection device 5 of the rubber vibration damper 1 according to the present invention. The mechanical connecting device 5 consists of a lower connecting seat 5-1, an upper connecting seat 5-2, a connecting ring 5-3 and a locking nut 5-4. The lower connecting seat 5-1 is matched with the lower stepped hole 3-2 and the lower stepped hole 3-3, and the upper connecting seat 5-2 is matched with the upper stepped hole 2-6 and the upper stepped hole 2-7; the connecting ring 5-3 is positioned in the rubber body 6 and is used for connecting the lower connecting seat 3 and the upper connecting seat 2; the lock nut 5-4 is screwed on the upper connecting seat 5-2 penetrating from the upper connecting plate 2 by a preset distance. The mechanical connection means 5 limit the furthest distance between the upper connection plate 2 and the lower connection plate 3, preventing the rubber body 6 from receiving a large pulling force.
The monitoring method of the rubber damping device with the pressure monitoring function is given as follows:
The rubber shock absorbing device 1 is connected with the axle 8 through the plurality of lower mounting holes 3-1, and the rubber shock absorbing device 1 is connected with the vehicle body 9 through the plurality of upper mounting holes 2-5. When the rubber shock absorbing device 1 is acted by the pressure of the vehicle body 9, the upper connecting plate 2 transmits the pressure to the elastic body 4-4 through the inner ring 4-3, so that the elastic body 4-4 generates elastic deformation, the deformation of the elastic body 4-4 can lead to the resistance change of the strain gauge 4-5 arranged on the side surface of the elastic body 4-4, the resistance change generates current change, and then the pressure applied to the inner ring 4-3 is measured through calculation. The weight of the load carried by the vehicle is calculated by the change in pressure monitored by the plurality of rubber vibration reduction devices 1 arranged on the vehicle, so that weighing is achieved.
The following is a preferred embodiment of the above-mentioned solution for weighing by calculating the weight of the load carried by the vehicle from the pressure variations detected by a plurality of rubber shock absorbing devices arranged on the vehicle:
As shown in fig. 10, the articulated dump truck is provided with a front axle, a middle axle and a rear axle, wherein the front axle is connected with a front frame, the left and the right of the rear frame are respectively provided with a balance beam, the middle axle and the rear axle are connected with the balance beams through rubber damping devices, and the weight of goods in a container is transferred to the balance beams through the frame and then transferred to the axles; the horizontal distance between the center of the balance beam and the center of the front axle is a, the horizontal distance between the center of the cargo gravity center and the center of the balance beam is b, the pressures measured by the rubber damping devices arranged at the two ends of the balance beam are f1, f2, f3 and f4 respectively, and the sum of the pressures measured by the four rubber damping devices is the pressure f born by the center of the balance beam in a horizontal state, namely f=f1+f2+f3+f4.
Assuming the cargo weight is m, then m decomposes to a pressure F at the center of the balance beam;
according to the mechanics principle, f=m×g (a-b)/a, where g is the gravitational acceleration;
Obtainable from f=f, m×g (a-b)/a=f1+f2+f3+f4;
Thus, m=a (f1+f2+f3+f4)/[ g (a-b) ].
If the force is converted to the vertical direction according to the principle of physics on the ground with a certain inclination angle, the inclination angle of the ground can be measured by two inclination angle sensors arranged on a front frame and a rear frame, and the measurement accuracy of the system is affected due to overlarge inclination angle, so that the value is read when the inclination angle of the ground is not more than 10 DEG in a static state of the vehicle; in the calculation process, only the influence of the cargo weight m (variable value) on the numerical value of the rubber damping device is considered, and the weight of the vehicle is not considered, so that the weight of the vehicle is a fixed value and can be eliminated in the system in advance.
In summary, the structure of the rubber damping device 1 disclosed by the invention is completely consistent with the existing structure and installation size, and meanwhile, the vehicle weighing function is realized, and the structure is simple. The concrete steps are as follows: the first rubber damping device 1 can directly replace the existing rubber damping device without changing the structure and the size; secondly, the damping effect of the rubber damping device 1 is consistent with the prior art, and the damping effect is not weakened due to the addition of the weighing function; thirdly, the structure is simple, the material of the pressure monitoring device 4 is conventional material, the processing is simple, the strain gauge 4-5 is conventional product, the cost is low, and the manufacturing cost is not increased basically. Fourth, need not to maintain rubber damping device 1 at ordinary times the maintenance, maintenance-free, for hanging jar form, greatly reduced maintenance cost.
the invention also discloses an engineering vehicle, which comprises a vehicle body, an axle and the rubber damping device with the pressure monitoring function, wherein the rubber damping device is connected between the vehicle body and the axle through a fastener.
the further scheme is as follows: the working vehicle is preferably an articulated dump truck.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features contained in other embodiments, but not others, combinations of features of different embodiments are equally meant to be within the scope of the application and form different embodiments. For example, in the above embodiments, those skilled in the art can use the above embodiments in combination according to known technical solutions and technical problems to be solved by the present application.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any simple modification, equivalent variation and variation of the above embodiments according to the technical matter of the present invention without departing from the scope of the invention.
Claims (6)
1. Rubber damping device with pressure monitoring function, its characterized in that:
Comprises an upper connecting plate, a lower connecting plate, a pressure monitoring device, a mechanical connecting device, a rubber body and an annular laminate;
A plurality of annular laminates are uniformly distributed in the rubber body, one end of the rubber body is connected with the pressure monitoring device, and the other end of the rubber body is connected with the lower connecting plate;
The rubber body, the pressure monitoring device, the lower connecting plate and the annular laminates are integrally vulcanized into a whole;
the upper connecting plate is arranged at the pressure monitoring device, the rubber body is of a hollow structure, and the mechanical connecting device penetrates through the center of the rubber body to connect the upper connecting plate with the lower connecting plate;
the pressure monitoring device comprises a base, an outer ring, an inner ring, an elastomer and a strain gauge;
The outer ring of the base is provided with a step, the inner ring of the base is provided with an inner protection ring, and the inner protection ring is used for protecting the pressure testing device when the rubber body is vulcanized;
The outer ring is placed on the base, a plurality of elastic bodies are uniformly arranged on the inner ring of the outer ring, and a plurality of guide grooves are further formed in the outer ring of the outer ring;
the elastomer supporting the inner ring, the strain gauge being arranged on the elastomer;
The elastic body and the inner ring are not contacted with the base, and a distance L1 is reserved;
the distance between the upper part of the inner ring and the upper part of the outer ring is L2;
the strain gauge is arranged on the side surface of the elastic body, when the upper part of the inner ring is pressed, downward movement is generated, L1 is reduced, the elastic body is elastically deformed, and the deformation of the elastic body can also cause resistance change of the strain gauge arranged on the side surface of the elastic body;
The upper connecting plate comprises a top plate, a guide ring and an outer protective ring;
A plurality of upper mounting holes are formed in the periphery of the top plate, an upper stepped hole is formed in the center of the top plate, and a plurality of guide posts are arranged in the inner ring of the guide ring;
the inner ring of the guide ring is matched with the outer ring of the outer ring, and the guide post is matched with the guide groove, so that the upper connecting plate and the pressure monitoring device only have axial relative movement and do not have circumferential relative movement;
the outer protection ring is matched with the step of the outer ring of the base to protect the pressure monitoring device.
2. the rubber vibration damper with pressure monitoring function according to claim 1, wherein:
The outer ring and the base form an integrated structure in a welding mode or an integrated casting mode;
Or the outer ring and the base form a split structure in a bolt connection mode.
3. the rubber vibration damper with pressure monitoring function according to claim 1, wherein:
The periphery of the lower connecting plate is provided with a plurality of lower mounting holes, and the center of the lower connecting plate is provided with a lower stepped hole.
4. The rubber vibration damper with pressure monitoring function according to claim 1, wherein:
The mechanical connecting device comprises a lower connecting seat, an upper connecting seat, a connecting ring and a locking nut;
The lower connecting seat is matched with the lower stepped hole of the lower connecting plate, and the upper connecting seat is matched with the upper stepped hole of the upper connecting plate;
the connecting ring is positioned in the rubber body and is used for connecting the lower connecting seat and the upper connecting seat;
The lock nut is screwed on the upper connecting seat penetrating out of the upper connecting plate by a preset distance, so that the furthest distance between the upper connecting plate and the lower connecting plate is limited.
5. A monitoring method based on the rubber vibration damper with pressure monitoring function according to any one of claims 1 to 4, characterized in that:
The rubber damping device is connected with the axle through a lower mounting hole in the lower connecting plate, and is connected with the vehicle body through an upper mounting hole in the upper connecting plate;
The upper part of an inner ring in the pressure monitoring device is contacted with an upper connecting plate, when the rubber damping device is under the pressure action of a vehicle body, the upper connecting plate can transmit the pressure to an elastic body in the pressure monitoring device through the inner ring, so that the elastic body is elastically deformed, the deformation of the elastic body can cause the resistance change of a strain gauge arranged on the side surface of the elastic body, the resistance change generates the current change, and then the pressure of the inner ring is measured through calculation;
The weight of the load carried by the vehicle is calculated by the change in pressure monitored by a plurality of rubber shock absorbing devices arranged on the vehicle to achieve weighing.
6. The utility model provides an engineering vehicle, includes automobile body and axle, its characterized in that:
Further comprising the rubber vibration damper with a pressure monitoring function according to any one of claims 1 to 4, which is connected between the vehicle body and the axle by a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365342.8A CN114643822B (en) | 2022-04-08 | 2022-04-08 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210365342.8A CN114643822B (en) | 2022-04-08 | 2022-04-08 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114643822A CN114643822A (en) | 2022-06-21 |
| CN114643822B true CN114643822B (en) | 2024-03-26 |
Family
ID=81997608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210365342.8A Active CN114643822B (en) | 2022-04-08 | 2022-04-08 | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114643822B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022125618A1 (en) * | 2022-10-05 | 2024-04-11 | Zf Cv Systems Europe Bv | Device for measuring a wheel or axle load |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007333052A (en) * | 2006-06-14 | 2007-12-27 | Komatsu Ltd | Rubber spring device |
| CN102470713A (en) * | 2010-06-30 | 2012-05-23 | 株式会社小松制作所 | Off-road truck with rubber spring apparatus installed |
| DE102012011160B3 (en) * | 2012-06-05 | 2013-08-29 | Hottinger Baldwin Messtechnik Gmbh | Method for determining wear of rubber buffers in vehicle, involves achieving malfunction criterion when current signal patterns deviate from preset value of calibration signal patterns, and outputting malfunction signal |
| CN107671875A (en) * | 2017-11-23 | 2018-02-09 | 哈尔滨工业大学 | The compact metal rubber elastic element of the upper energy measuring moment of flexible machine person joint |
| CN210510069U (en) * | 2019-07-01 | 2020-05-12 | 徐州徐工矿业机械有限公司 | Elastic rubber shock absorber for suspension of mining dump truck and mining dump truck |
| CN211175139U (en) * | 2019-12-13 | 2020-08-04 | 洛阳宏信重型机械有限公司 | Open oil cylinder sensing intelligent brake for hoister |
| JP3233210U (en) * | 2020-09-17 | 2021-07-29 | 台達電子工業股▲ふん▼有限公司Delta Electronics, Inc. | Load cell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8356807B2 (en) * | 2010-06-24 | 2013-01-22 | Miner Elastomer Products Corporation | Dual rate shock absorbing apparatus for a suspension system of a heavy off-road vehicle |
-
2022
- 2022-04-08 CN CN202210365342.8A patent/CN114643822B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007333052A (en) * | 2006-06-14 | 2007-12-27 | Komatsu Ltd | Rubber spring device |
| CN102470713A (en) * | 2010-06-30 | 2012-05-23 | 株式会社小松制作所 | Off-road truck with rubber spring apparatus installed |
| DE102012011160B3 (en) * | 2012-06-05 | 2013-08-29 | Hottinger Baldwin Messtechnik Gmbh | Method for determining wear of rubber buffers in vehicle, involves achieving malfunction criterion when current signal patterns deviate from preset value of calibration signal patterns, and outputting malfunction signal |
| CN107671875A (en) * | 2017-11-23 | 2018-02-09 | 哈尔滨工业大学 | The compact metal rubber elastic element of the upper energy measuring moment of flexible machine person joint |
| CN210510069U (en) * | 2019-07-01 | 2020-05-12 | 徐州徐工矿业机械有限公司 | Elastic rubber shock absorber for suspension of mining dump truck and mining dump truck |
| CN211175139U (en) * | 2019-12-13 | 2020-08-04 | 洛阳宏信重型机械有限公司 | Open oil cylinder sensing intelligent brake for hoister |
| JP3233210U (en) * | 2020-09-17 | 2021-07-29 | 台達電子工業股▲ふん▼有限公司Delta Electronics, Inc. | Load cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114643822A (en) | 2022-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120024081A1 (en) | Trailer hitch monitoring apparatus and method | |
| CN114643822B (en) | Rubber damping device with pressure monitoring function, monitoring method and engineering vehicle | |
| KR102244449B1 (en) | Sensor module structure for axle-mounted car celebration | |
| Solazzi | Applied research for weight reduction of an industrial trailer | |
| CN205426310U (en) | Oversize vehicle overloading detecting device | |
| CN105651369A (en) | Oversize vehicle overload detection device | |
| CN209181894U (en) | A kind of oversize vehicle overload detection warning device | |
| CN106938628A (en) | A kind of Tipper Lifting operation rollover prior-warning device based on displacement transducer | |
| CN207487798U (en) | Vehicle load sensing device | |
| CN212447859U (en) | Anti-unbalance damping type platform trailer | |
| CN103010081A (en) | Automatic detection load axle | |
| CN210487044U (en) | A detection device for monitoring of car load | |
| CN214748380U (en) | Industrial vehicle removes weighing system | |
| CN209764242U (en) | dynamic truck scale and truck scale system | |
| US6988754B1 (en) | Vehicle bumper | |
| CN212426801U (en) | A assembled reinforcement facility for preventing bridge topples | |
| CN208454416U (en) | A kind of fork truck lateral stability locking system | |
| CN111572302A (en) | Anti integrated control device that turns on one's side of steering coupling initiative suspension | |
| CN117681821A (en) | Collision protection module, chassis traveling system, traveling protection method and vehicle | |
| CN211783798U (en) | Sensor for vehicle-mounted weighing system and vehicle-mounted weighing system | |
| CN216695233U (en) | Weighing pressure sensor applied to vehicle | |
| CN216969707U (en) | Anti frock transport vechicle that jolts | |
| CN215492021U (en) | Flat plate type high-speed dynamic weighing platform with pretightening force | |
| CN220380594U (en) | Wagon balance with stabilizing device | |
| CN212685391U (en) | Shock attenuation protection device of on-vehicle fire extinguisher case of tank wagon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |