Double-beam type weighing sensor

Abstract

The invention discloses a double-beam type weighing sensor, and relates to the technical field of double-beam type weighing sensors. The double-beam weighing sensor comprises a weighing body, the front surface of the weighing body is communicated with circular through holes, the number of the circular through holes is two, the circular through holes are symmetrically distributed on the front surface of the weighing body, the weighing body is fixedly connected with a vibration reduction sleeve through the circular through holes, the interior of the vibration reduction sleeve is slidably connected with a sliding rod, and the top of the sliding rod is slidably connected with a vibration transmission support. The vibration transmission support comprises a buffering sleeve, the interior of the buffering sleeve is slidably connected with the top of the sliding rod, the section of the front face of the buffering sleeve is in a circular ring shape, and the interior of the buffering sleeve is covered with a rubber layer. According to the double-beam type weighing sensor, through cooperation of the passive damping mechanism and the active counteracting mechanism, the resistance of the sensor to external vibration is improved, the probability of abrasion damage between the mechanisms when the sensor passes through a bumpy road section in the transportation process is reduced, and the equipment reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of double-beam type weighing sensors, in particular to a double-beam type weighing sensor. Background Art

[0002] Vehicle weighing is the process of using professional equipment to accurately measure the vehicle's curb weight and empty vehicle weight. This process is not limited to annual inspections, but may also be carried out in vehicle registration, road inspections, etc. The invention patent cited in China with the publication number CN112345051A discloses a double-beam weighing sensor. The double-beam weighing sensor provided by the invention has a double-side beam structure arranged on both sides of the sensor body. The heights of the two sets of supporting side beams are higher than the upper surface of the scale body, which protect the connection part of the symmetrical body. The two sets of supporting side beams are arranged with adjustment structures, which facilitate the telescopic rod to be telescopically adjusted. When the telescopic rod is adjusted, the two ends of the symmetrical body of the resistance tube are simultaneously driven to be supported and fixed. The two sides of the scale body are used for limiting and fixing, so as to facilitate the stability of the scale body during transportation and movement. Although the above-mentioned existing technical solutions can improve the stability of the sensor during transportation and movement, when passing through sections with poor road conditions during transportation and movement, the bumps of the transport vehicle will produce more severe vibrations. The interference caused by the severe vibrations will cause the vibration wear between the various mechanisms of the sensor to increase, thereby reducing the measurement accuracy and reliability of the sensor. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a double-beam weighing sensor to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a double-beam weighing sensor, including a weighing body, the weighing body has a cubic shape, the front of the weighing body is connected with a circular through hole, the number of the circular through holes is two, and they are symmetrically distributed on the front of the weighing body, the weighing body is fixedly connected with a vibration-damping sleeve through the circular through hole, the interior of the vibration-damping sleeve is slidably connected with a sliding rod, the top of the sliding rod is slidably connected with a vibration-transmitting bracket, the vibration-transmitting bracket includes a T-shaped frame, a buffer sleeve, a buffer pad, an energy release device base, a vibration-transmitting pillar, and a slide rail plate, the interior of the buffer sleeve is slidably connected to the top of the sliding rod, the front cross-section of the buffer sleeve is annular, the interior of the buffer sleeve is covered with a rubber layer, the top of the buffer sleeve is slidably connected with a support, the back of the support is slidably connected with a sensor body, the buffer pad is located on the back of the buffer sleeve, the buffer pad is fixedly connected to the back of the buffer sleeve, the front cross-section of the buffer pad is annular, the T-shaped frame is located on the front of the buffer sleeve, The back of the T-frame is fixedly connected to the front of the buffer sleeve, and the front cross-section of the buffer sleeve is T-shaped. The energy releaser base is located at the front of the T-frame, and the back of the energy releaser base is slidably connected to the front of the T-frame. The bottom of the energy releaser base coincides with the bottom of the T-frame. The top of the energy releaser base is fixedly connected to a sensor sleeve, and the top of the sensor sleeve is connected to a circular through hole. A displacement sensor is plugged into the top of the sensor sleeve. The vibration transmission pillar is made of rubber, and the vibration transmission pillar is located at the bottom of the energy releaser base. The top of the vibration transmission pillar is fixedly connected to the bottom of the energy releaser base, and the cross-section of the top of the vibration transmission pillar is rectangular. The slide plate is located at the front of the energy releaser base, and the back of the slide plate is fixedly connected to the front of the energy releaser base. The cross-section of the top of the slide plate is a right-angled trapezoid. The width of the front of the slide plate is greater than the width of the back of the slide plate. There are two slide plates, and they are symmetrically distributed on the front of the slide plate, providing an overall technical solution for the passive vibration reduction mechanism of the present invention.

[0005] Preferably, the support platform includes a platform body, a circular through hole is connected to the front side of the platform body, the number of the circular through holes is two, and they are symmetrically distributed on the front side of the platform body, the platform body is slidably connected to the buffer sleeve through the circular through hole, the front side of the platform body is fixedly connected to a frame seat, the top of the frame seat is connected to a rectangular through hole, the front side of the frame seat is fixedly connected to a rear slide rail, the top cross-section of the rear slide rail is an isosceles trapezoid, the front width of the rear slide rail is greater than the back width of the rear slide rail, the back side of the frame seat is fixedly connected to a lower mounting plate, the top of the lower mounting plate is fixedly connected to a front slide rail, the top cross-section of the front slide rail is an isosceles trapezoid, the front width of the front slide rail is less than the back width, a slide rail clamp is slidably connected to one side of the front slide rail, the number of the slide rail clamps is two, and they are symmetrically distributed on the top of the front slide rail, the number of the supports is two, and they are symmetrically distributed on the top of the slide rod, providing an overall technical solution for the equipment installation mechanism of the present invention.

[0006] Preferably, there are two sliding rods, the diameter and the center axis position of the sliding rods are consistent with the two through holes connected to the front side of the scale body, the front side of the sliding rods is fixedly connected to the back side of the T-frame through a spring, and the back side of the sliding rods is fixedly connected to the back side of the T-frame through a spring, providing a supplementary technical solution to the equipment installation mechanism of the present invention.

[0007] Preferably, the vibration damping sleeve is made of rubber, the front side of the vibration damping sleeve is connected to a rectangular rubber plate, the back side of the vibration damping sleeve is connected to a rectangular rubber plate, the number of the buffer sleeve and the buffer pad are both two, the inner diameter and the center axis position of the buffer sleeve and the buffer pad are consistent with the two circular through holes on the front side of the scale body, the sensor sleeve is slidably connected with an energy release pressure block, the energy release pressure block is coated with a rubber layer, the bottom of the energy release pressure block is fixedly connected to the top of the energy releaser base through a spring, the front side of the rectangular rubber plate of the vibration damping sleeve is fixedly connected to the back side of the buffer pad through a spring, the spring is slidably connected to the surface of the slide rod, the front side of the vibration transmission pillar is slidably connected to the rectangular through groove of the frame, the slide rail plate is slidably connected to the rear slide rail, providing a supplementary technical solution for the passive vibration damping mechanism of the present invention.

[0008] Preferably, an upper rubber block is fixedly connected to the surface of the platform, the upper rubber block is elastic, the top of the upper rubber block is connected to an isosceles trapezoidal through groove, the upper rubber block is fixedly connected to the back of the front slide rail through the isosceles trapezoidal through groove, and a lower rubber block is fixedly connected to the top of the lower mounting plate, the lower rubber block is elastic, providing a supplementary technical solution for the positional relationship between the equipment mounting mechanism and the passive vibration reduction mechanism of the present invention.

[0009] Preferably, a compensator is fixedly connected to the bottom of the vibration transmission pillar, the top and bottom of the compensator are fixedly connected by a spring, a vibrator is fixedly connected to the bottom of the compensator, a motor is fixed inside the vibrator, an eccentric wheel is rotatably connected to the front of the vibrator, an eccentric wheel is rotatably connected to the back of the vibrator, a foot plate is fixedly connected to the bottom of the vibrator, the foot plate includes an energy absorbing column, the top of the foot plate is fixedly connected to the energy absorbing column, there are two energy absorbing columns, and they are symmetrically distributed on the top surface of the foot plate, the top of the foot plate is fixedly connected to the bottom of the platform, providing a technical solution for the positional relationship between the active compensation mechanism of the present invention and the mounting mechanism.

[0010] Preferably, a vibration damping plate is fixedly connected to the front side of the platform body, a controller is fixedly connected to the front side of the vibration damping plate, the controller includes the vibration damping plate, the top of the displacement sensor is electrically connected to the other side of the controller through a wire, one side of the vibrator is electrically connected to the bottom of the controller, the number of the vibrators, controllers, displacement sensors, foot plates, and compensators are all two and they are symmetrically distributed about the center planes of the front and back sides of the scale body, providing an overall technical solution for the active cancellation mechanism of the present invention.

[0011] Preferably, one side of the sensor body is fixedly connected to the other side of the slide rail clamp on the same side, and the other side of the sensor body is fixedly connected to one side of the slide rail clamp on the same side. The sensor body is located on the top of the upper rubber block, providing a technical solution for the positional relationship between the sensor body and the mounting mechanism and the passive vibration reduction mechanism of the present invention.

[0012] The present invention provides a double-beam weighing sensor, which has the following beneficial effects: 1. This dual-beam weighing sensor, by setting up a passive vibration reduction mechanism, uses elastic materials to block direct contact between main mechanisms, and uses the elastic deformation of the elastic materials to prevent wear and damage to the mechanisms caused by direct contact between the mechanisms, thereby preventing the sensor accuracy from being reduced or even the sensor from being damaged, and improving the stability of the sensor.

[0013] 2. This double-beam weighing sensor, by setting up an active cancellation mechanism, uses a vibrator in conjunction with a compensator to generate reverse vibration transmitted to the outside of the sensor, thereby canceling the vibration transmitted to the sensor from the outside. At the same time, the compensator and energy absorber are used to cancel the influence of the vibrator on the sensor itself, thereby improving the sensor's resistance to external vibration interference, reducing the wear between the mechanisms inside the sensor caused by external vibration, and improving the stability and service life of the sensor.

[0014] 3. This double-beam weighing sensor cooperates with the passive vibration reduction mechanism and the active cancellation mechanism, and uses the signal feedback of the passive vibration reduction mechanism to control the working state of the active cancellation mechanism, so as to adapt to the vibration conditions of different bumpy road sections, improve the sensor's resistance to external vibrations, further improve the sensor's stability and reliability, and reduce the wear between the sensor's internal mechanisms.

[0015] 4. This double-beam weighing sensor, through the spring energy absorption mechanism of the passive vibration reduction mechanism, uses the cooperation between the spring and the energy release pressure block to absorb part of the vibration transmitted from the outside by means of the internal energy of the spring and the gravitational potential energy of the energy release pressure block. At the same time, the energy release pressure block is cooperated with the displacement sensor, and the displacement change rate of the energy release pressure block and the displacement sensor is used as the basis for the control mechanism to judge the vibration frequency transmitted from the outside to the sensor, and then the vibrator is controlled to work at the corresponding speed to generate reverse vibration that can offset the external vibration, thereby improving the vibration cancellation effect of the active cancellation mechanism, further improving the reliability and stability of the sensor, and reducing the wear of the internal mechanism of the sensor caused by external vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the cooperation between the scale body and the slide rod of the present invention; Figure 3It is a schematic diagram of the overall structure of the vibration damping sleeve of the present invention; Figure 4 It is a schematic diagram of the overall structure of the vibration transmission bracket of the present invention; Figure 5 It is a schematic diagram of the overall structure of the back side of the support platform of the present invention; Figure 6 This is a schematic diagram of the overall structure of the support platform of the present invention; Figure 7 It is a schematic diagram of the structure of the passive vibration reduction mechanism and the active vibration compensation mechanism of the present invention; Figure 8 This is a schematic diagram of the internal structure of the sensor sleeve of the present invention.

[0017] In the figure: 1. weighing body; 11. sensor body; 12. support platform; 121. platform body; 122. bracket; 123. rear slide rail; 124. lower mounting plate; 125. front slide rail; 126. slide rail clamp; 13. slide rod; 2. vibration damping sleeve; 21. vibration transmission bracket; 211. T-frame; 212. buffer sleeve; 213. buffer pad; 214. energy release device base; 215. vibration transmission support pillar; 216. slide rail plate; 22. sensor sleeve; 221. energy release pressure block; 23. lower rubber block; 24. upper rubber block; 3. vibrator; 31. controller; 311. vibration damping plate; 32. displacement sensor; 33. support foot plate; 331. energy absorption column; 34. compensator. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] For example, see Figure 1-6The present invention provides a technical solution: a double-beam weighing sensor, comprising a weighing body 1, which is used to cooperate with a sensor body 11 for weighing when in use. The weighing body 1 is in the shape of a cube, and is connected to a circular through hole on the front of the weighing body 1. The number of the circular through holes is two and symmetrically distributed on the front of the weighing body 1. The weighing body 1 is fixedly connected to a vibration-damping sleeve 2 through the circular through hole, which is used to reduce the influence of vibration between the contact surface of the weighing body 1 and the sliding rod 13. The vibration-damping sleeve 2 is made of rubber, and is connected to a rectangular rubber plate on the front of the vibration-damping sleeve 2, and is connected to a rectangular rubber plate on the back of the vibration-damping sleeve 2. The number of buffer sleeves 212 and buffer pads 213 are both two, and the inner diameters and central axis positions of the buffer sleeves 212 and the buffer pads 213 are consistent with the two circular through holes on the front of the weighing body 1. The sliding rod 13 is slidably connected inside the vibration-damping sleeve 2, which is used to support the weighing body 1 and offset part of the influence of vibration by allowing the weighing body 1 to slide relatively. The top of the sliding rod 13 is slidably connected to a vibration transmission bracket 21; The vibration transmission bracket 21 includes a T-shaped frame 211, a buffer sleeve 212, a buffer pad 213, an energy release device base 214, a vibration transmission pillar 215, and a slide rail plate 216. The top of the buffer sleeve 212 is slidably connected with a support platform 12, which is used to provide an installation position for the slide rod 13, the passive vibration reduction mechanism and the active compensation mechanism, and supports the entire sensor; The inside of the buffer sleeve 212 is slidably connected with the top of the slide bar 13. The buffer sleeve 212 is used to reduce the wear of the contact surface between the slide bar 13 and the support 12, and improve the service life of the sensor. The front cross-section of the buffer sleeve 212 is annular, and the inside of the buffer sleeve 212 is covered with a rubber layer. The buffer pad 213 is located on the back of the buffer sleeve 212. The buffer pad 213 is used to cooperate with the vibration damping sleeve 2 to reduce the influence of the vibration symmetrical body 1. The buffer pad 213 is fixedly connected to the back of the buffer sleeve 212. The front cross-section of the buffer pad 213 is annular. The inner diameter and central axis position of the buffer sleeve 212 and the buffer pad 213 are consistent with the two circular through holes on the front of the body 1. The T-shaped frame 211 is located at the front of the buffer sleeve 212. The T-shaped frame 211 is used to provide a foundation for the installation of other structures of the passive vibration reduction mechanism. The back of the T-shaped frame 211 is fixedly connected to the front of the buffer sleeve 212. The front cross section of the buffer sleeve 212 is T-shaped. The energy releaser base 214 is located at the front of the T-frame 211. The energy releaser base 214 is used to provide an installation position for the energy releaser. The back of the energy releaser base 214 is slidably connected to the front of the T-frame 211. The bottom of the energy releaser base 214 coincides with the bottom of the T-frame 211. The top of the energy releaser base 214 is fixedly connected to the sensor sleeve 22. The top of the sensor sleeve 22 is connected with a circular through hole. The top of the sensor sleeve 22 is plugged with a displacement sensor 32 for sensing the distance change between the energy release pressure block 221 and the displacement sensor 32 and transmitting a feedback signal. The vibration transmission support 215 is made of rubber. The vibration transmission support 215 is used to transmit the vibration transmitted from the outside to the sensor, and cooperate with the vibration transmission bracket 21 to offset the adverse effects of some vibrations by slight sliding during vibration. The vibration transmission support 215 is located at the bottom of the energy releaser base 214. The top of the vibration transmission support 215 is fixedly connected to the bottom of the energy releaser base 214. The cross-section of the top of the vibration transmission support 215 is rectangular. The slide plate 216 is located on the front of the energy releaser base 214. The slide plate 216 is used to limit the displacement direction of the vibration transmission bracket 21 when the vibration occurs and the slight sliding occurs. The back of the slide plate 216 is fixedly connected to the front of the energy releaser base 214. The top cross-section of the slide plate 216 is a right-angle trapezoid. The front width of the slide plate 216 is greater than the back width of the slide plate 216. There are two slide plates 216, and they are symmetrically distributed on the front of the slide plate 216. The support platform 12 includes a platform body 121, which is the main body of the support platform 12. The front side of the platform body 121 is connected with a circular through hole. The number of the circular through holes is two and they are symmetrically distributed on the front side of the platform body 121. The platform body 121 is slidably connected with the buffer sleeve 212 through the circular through hole. The front side of the platform body 121 is fixedly connected with a bracket 122, and the bracket 122 is used to assist in the installation of the vibration transmission bracket 21. The top of the bracket 122 is connected with a rectangular through hole. The front side of the bracket 122 is fixedly connected with a rear slide rail 123, and the rear slide rail 123 is used to cooperate with the slide rail plate 216. The top cross-section of the rear slide rail 123 is an isosceles trapezoid. The front width of the rear slide rail 123 is greater than the back width of the rear slide rail 123. The back side of the bracket 122 is fixedly connected with a lower mounting plate 124, and the lower mounting plate 124 provides space for the installation of the lower rubber block 23 and assists the lower rubber block in the vertical direction. 23 limits the sliding range of the slide rail clamp 126. The top of the lower mounting plate 124 is fixedly connected with a front slide rail 125, which is used to cooperate with the slide rail clamp 126 to offset some of the adverse effects caused by vibration by slight sliding during vibration. The top cross-section of the front slide rail 125 is an isosceles trapezoid. The front width of the front slide rail 125 is smaller than the back width. A slide rail clamp 126 is slidably connected to one side of the front slide rail 125. There are two slide rail clamps 126, which are symmetrically distributed on the top of the front slide rail 125. There are two supports 12, which are symmetrically distributed on the top of the slide rod 13. There are two slide rods 13. The diameter and the central axis position of the slide rod 13 are consistent with the two through holes connected to the front of the scale body 1. The front of the slide rod 13 is fixedly connected to the back of the T-frame 211 through a spring, and the back of the slide rod 13 is fixedly connected to the back of the T-frame 211 through a spring. An upper rubber block 24 is fixedly connected to the surface of the platform 121, which is used to limit the displacement of the sensor body 11 at the top and absorb part of the vibration to reduce the adverse effect of the vibration on the sensor body 11. The upper rubber block 24 is elastic, and the top of the upper rubber block 24 is connected to an isosceles trapezoidal through groove. The upper rubber block 24 is fixedly connected to the back of the front slide rail 125 through the isosceles trapezoidal through groove. The top of the lower mounting plate 124 is fixedly connected to a lower rubber block 23. The lower rubber block 23 is elastic and is used to reduce the wear of the bottom of the sensor body 11 and the lower mounting plate 124. , to improve the service life of the sensor, one side of the sensor body 11 is fixedly connected to the other side of the slide rail clamp 126 on the same side, and the other side of the sensor body 11 is fixedly connected to one side of the slide rail clamp 126 on the same side. The sensor body 11 is located on the top of the upper rubber block 24, and the front side of the rectangular rubber plate of the vibration damping sleeve 2 is fixedly connected to the back side of the buffer pad 213 through a spring, and the spring is slidably connected to the surface of the slide rod 13, and the front side of the vibration transmission support 215 is slidably connected to the rectangular through groove of the bracket 122, and the slide rail plate 216 is slidably connected to the rear slide rail 123.

[0021] During use, when the vibration is transmitted to the support platform 12, the vibration is transmitted to the T-shaped frame 211, the buffer sleeve 212, the buffer pad 213 and the energy releaser base 214 of the vibration transmission bracket 21 through the support platform 12. The energy releaser base 214 undergoes slight repeated vertical sliding during vibration, and the slide plate 216 slides relatively along the surface of the rear slide rail 123. At this time, the buffer sleeve 212 and the platform 121 and the slide bar 13 are relatively squeezed, but because of the rubber layer covering the inside of the buffer sleeve 212, the rubber layer is squeezed first, and the rubber layer is deformed, thereby reducing the direct impact on the buffer sleeve 212 and the slide bar 13. At the same time, the vibration will also cause the scale body 1 to slide laterally along the slide bar 13, but because the circular through hole of the scale body 1 is fixedly connected with the vibration damping sleeve 2, when sliding occurs, the slide bar 13 will slide relative to the vibration-damping sleeve 2 in the axial direction and squeeze the vibration-damping sleeve 2 in the radial direction, thereby causing the vibration-damping sleeve 2 to undergo elastic deformation, thereby reducing the direct impact of the symmetrical body 1. Due to the relative sliding of the scale body 1 and the slide bar 13, the rectangular rubber plate of the vibration-damping sleeve 2 will squeeze the spring between the vibration-damping sleeve 2 and the buffer pad 213 in the sliding direction, and at the same time stretch the spring between the vibration-damping sleeve 2 and the buffer pad 213 in the opposite direction, thereby absorbing part of the vibration. When the scale body 1 and the slide bar 13 slide relative to each other, the slide bar 13 and the buffer sleeve 212 will also slide relative to each other. The slide bar 13 squeezes the spring between the slide bar 13 and the T-shaped frame 211 in the sliding direction, and stretches the spring between the slide bar 13 and the T-shaped frame 211 in the opposite direction, thereby completing the absorption of part of the vibration of the slide bar 13. At the same time, when the vibration is transmitted to the sensor body 11, since the sensor body 11 is fixedly connected to the slide rail clamping plate 126, the slide rail clamping plate 126 drives the sensor body 11 to slide slightly in the vertical direction on the front slide rail 125. When sliding upward, the top edge of the sensor body 11 is squeezed onto the upper rubber block 24. Since the upper rubber block 24 is elastic, the upper rubber block 24 is elastically deformed and absorbs part of the vibration, while preventing the top of the sensor body 11 from contacting the bottom of the scale body 1 over a large area, thereby preventing the service life from being reduced due to triggering the weighing detection. When the sensor body 11 slides downward, the bottom edge of the sensor body 11 is squeezed onto the top of the lower rubber block 23. Since the lower rubber block 23 is elastically deformed due to its elasticity, it absorbs part of the vibration and reduces the adverse effect of the vibration on the sensor body 11. At the same time, the lower rubber block 23 cooperates with the upper rubber block 24 to limit the sliding range of the sensor body 11, thereby preventing it from being accidentally triggered and accidentally touching the bottom, thereby affecting the overall use of the sensor. The above processes work together to reduce some vibrations through the elastic deformation of the spring and rubber structural parts.

[0022] For example 2, please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution: A vibration damping plate 311 is fixedly connected to the front of the platform 121, which is used to install the controller 31 and reduce the impact of vibration on the controller 31. A controller 31 is fixedly connected to the front, which is used to receive the pulse signal of the displacement sensor 32 and control the action of the vibrator 3, thereby realizing the process of actively canceling the external vibration. The controller 31 includes a vibration damping plate 311, the top of the displacement sensor 32 is electrically connected to the other side of the controller 31 through a wire, and one side of the vibrator 3 is electrically connected to the bottom of the controller 31. The number of the vibrator 3, the controller 31, the displacement sensor 32, the support plate 33, and the compensator 34 are all two and are symmetrically distributed about the center plane of the front and back of the scale body 1; A compensator 34 is fixedly connected to the bottom of the vibration transmission support 215, which is used to offset the vibration transmitted to the sensor by the vibrator 3. The compensator 34 is fixedly connected to the bottom of the compensator 34, which is used to generate vibration through centrifugal force under the control of the controller 31 to offset the vibration transmitted from the outside. A foot plate 33 is fixedly connected to the bottom of the vibrator 3, which is used to connect the sensor as a whole with the ground. The foot plate 33 includes an energy absorbing column 331, which is used to absorb part of the vibration transmitted to the support 12 from the outside and reduce the adverse effect of the vibration on the support 12. An energy absorbing column 331 is fixedly connected to the top of the foot plate 33. There are two energy absorbing columns 331, which are symmetrically distributed on the top surface of the foot plate 33. The top of the foot plate 33 is fixedly connected to the bottom of the platform 121.

[0023] When in use, the displacement sensor 32 transmits a displacement feedback signal to the controller 31. After the controller 31 determines the external vibration situation based on the feedback signal, it controls the vibrator 3 to start at a certain speed. After the vibrator 3 is started, the internal motor of the vibrator 3 rotates, driving the eccentric wheel of the vibrator 3 to rotate and generate vibration, which is transmitted to the outside through the support plate 33. The centrifugal force generated by the vibrator 3 offsets part of the external vibration, reducing the interference of the vibration on the sensor. At the same time, part of the vibration generated by the vibrator 3 that is transmitted to the top is absorbed and dissipated by the compensator 34 and the energy absorption column 331, thereby reducing the impact of the vibrator 3 on the sensor itself.

[0024] For example 3, please refer to Figure 1-8 Based on the first and second embodiments, the present invention provides a technical solution: An energy release block 221 is slidably connected inside the sensor sleeve 22. The energy release block 221 is covered with a rubber layer. The energy release block 221 is used to absorb part of the external vibration in cooperation with the spring, and cooperate with the displacement sensor 32 to feedback the external vibration, thereby assisting the active cancellation mechanism to cancel the vibration. The bottom of the energy release block 221 is fixedly connected to the top of the energy release device base 214 through a spring; When in use, external vibration is transmitted to the vibration transmission bracket 21 and the energy absorbing column 331 through the support foot plate 33. The energy absorbing column 331 absorbs part of the external vibration. When the vibration is transmitted to the sensor sleeve 22, the energy releasing pressing block 221 in the sensor sleeve 22 receives the vibration and slides up and down inside the sensor sleeve 22 under the action of the vibration, repeatedly compressing the stretching spring, thereby absorbing part of the vibration together with the spring, reducing the adverse effect of the vibration on other mechanisms. While the energy release block 221 slides up and down, the displacement sensor 32 continuously records the displacement distance between the bottom of the displacement sensor 32 and the top of the energy release block 221, and transmits the feedback signal to the controller 31 through a wire. The controller 31 uses the distance value signal fed back by the displacement sensor 32 to analyze the vibration frequency of the energy release block 221, and then analyzes the vibration frequency currently transmitted to the sensor from the outside, and then sends a control signal through the wire to control the vibrator 3 to start the motor to drive the eccentric wheel to rotate and generate vibration, thereby offsetting the vibration transmitted from the outside. As the displacement sensor 32 continuously transmits feedback signals, the controller 31 continuously adjusts the speed of the motor inside the vibrator 3 according to the feedback signal, thereby generating reverse vibrations of different frequencies, so as to offset the vibrations of different frequencies transmitted to the sensor from the outside at different times, so as to effectively improve the vibration resistance and stability of the sensor.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-beam weighing sensor, comprising a weighing body (1), characterized in that: The front side of the scale body (1) is connected to a circular through hole, the number of the circular through holes is two and they are symmetrically distributed on the front side of the scale body (1), the scale body (1) is fixedly connected to a vibration-damping sleeve (2) via the circular through hole, a sliding rod (13) is slidably connected inside the vibration-damping sleeve (2), and a vibration-transmitting bracket (21) is slidably connected to the top of the sliding rod (13); The vibration transmission bracket (21) comprises: A buffer sleeve (212), the interior of the buffer sleeve (212) being slidably connected to the top of the slide rod (13), the front cross-section of the buffer sleeve (212) being annular, the interior of the buffer sleeve (212) being covered with a rubber layer, the top of the buffer sleeve (212) being slidably connected to a support platform (12), and the back of the support platform (12) being slidably connected to a sensor body (11); a buffer pad (213), the buffer pad (213) being located on the back of the buffer sleeve (212), the buffer pad (213) being fixedly connected to the back of the buffer sleeve (212), and the front cross-section of the buffer pad (213) being in the shape of a circular ring; A T-shaped frame (211), the T-shaped frame (211) being located on the front side of the buffer sleeve (212), the back side of the T-shaped frame (211) being fixedly connected to the front side of the buffer sleeve (212), and the front side cross section of the buffer sleeve (212) being T-shaped; An energy releaser base (214), the energy releaser base (214) being located at the front of the T-shaped frame (211), the back of the energy releaser base (214) being slidably connected to the front of the T-shaped frame (211), the bottom of the energy releaser base (214) being overlapped with the bottom of the T-shaped frame (211), the top of the energy releaser base (214) being fixedly connected to a sensor sleeve (22), the top of the sensor sleeve (22) being connected to a circular through hole, and the top of the sensor sleeve (22) being plugged with a displacement sensor (32); A vibration transmission pillar (215), the vibration transmission pillar (215) being located at the bottom of the energy releaser base (214), the top of the vibration transmission pillar (215) being fixedly connected to the bottom of the energy releaser base (214), and the top of the vibration transmission pillar (215) being a rectangle in cross section; A slide plate (216), the slide plate (216) being located on the front side of the energy releaser base (214), the back side of the slide plate (216) being fixedly connected to the front side of the energy releaser base (214), the top cross-section of the slide plate (216) being a right-angled trapezoid, the front width of the slide plate (216) being greater than the back width of the slide plate (216), the number of the slide plates (216) being two, and being symmetrically distributed on the front side of the slide plate (216).

2. A double beam weighing sensor according to claim 1, characterized in that: The support platform (12) comprises a platform body (121), the front face of the platform body (121) is connected with a circular through hole, the number of the circular through holes is two and they are symmetrically distributed on the front face of the platform body (121), the platform body (121) is slidably connected with the buffer sleeve (212) via the circular through hole, the front face of the platform body (121) is fixedly connected with a bracket (122), the top of the bracket (122) is connected with a rectangular through hole, the front face of the bracket (122) is fixedly connected with a rear slide rail (123), the top cross section of the rear slide rail (123) is an isosceles trapezoid, the front width of the rear slide rail (123) is greater than the width of the rear slide rail (123) The back side width of the slide rail (123), the back side of the frame seat (122) is fixedly connected to a lower mounting plate (124), the top of the lower mounting plate (124) is fixedly connected to a front slide rail (125), the top cross-section of the front slide rail (125) is an isosceles trapezoid, the front side width of the front slide rail (125) is smaller than the back side width, one side of the front slide rail (125) is slidably connected to a slide rail clamp (126), the number of the slide rail clamps (126) is two, and they are symmetrically distributed on the top of the front slide rail (125), the number of the support platforms (12) is two, and they are symmetrically distributed on the top of the slide rod (13).

3. A double beam weighing sensor according to claim 1, characterized in that: The number of the slide bars (13) is two, the diameter and the central axis position of the slide bars (13) are consistent with the two through holes connected to the front of the scale body (1), the front of the slide bars (13) is fixedly connected to the back of the T-shaped frame (211) via a spring, and the back of the slide bars (13) is fixedly connected to the back of the T-shaped frame (211) via a spring.

4. A double beam weighing sensor according to claim 1, characterized in that: The vibration-damping sleeve (2) is made of rubber. The front side of the vibration-damping sleeve (2) is connected to a rectangular rubber plate. The back side of the vibration-damping sleeve (2) is connected to a rectangular rubber plate. The number of the buffer sleeve (212) and the buffer pad (213) is two. The inner diameter and the central axis position of the buffer sleeve (212) and the buffer pad (213) are consistent with the two circular through holes on the front side of the scale body (1). The sensor sleeve (22) is slidably connected with an energy-releasing pressure block (221). The bottom of the energy-releasing pressure block (221) is fixedly connected to the top of the energy-releasing device base (214) through a spring. The front side of the rectangular rubber plate of the vibration-damping sleeve (2) is fixedly connected to the back side of the buffer pad (213) through a spring. The spring is slidably connected to the surface of the slide rod (13). The front side of the vibration-transmitting support (215) is slidably connected to the rectangular through groove of the frame seat (122). The slide rail plate (216) is slidably connected to the rear slide rail (123).

5. A double beam weighing sensor according to claim 2, characterized in that: An upper rubber block (24) is fixedly connected to the surface of the platform (121); the top of the upper rubber block (24) is connected to an isosceles trapezoidal through groove; the upper rubber block (24) is fixedly connected to the back of the front slide rail (125) via the isosceles trapezoidal through groove; and the top of the lower mounting plate (124) is fixedly connected to a lower rubber block (23).

6. A double beam weighing sensor according to claim 1, characterized in that: The bottom of the vibration transmission support (215) is fixedly connected to a compensator (34), the bottom of the compensator (34) is fixedly connected to a vibrator (3), the bottom of the vibrator (3) is fixedly connected to a support plate (33), the support plate (33) comprises an energy absorbing column (331), the top of the support plate (33) is fixedly connected to an energy absorbing column (331), the number of the energy absorbing columns (331) is two, and they are symmetrically distributed on the top surface of the support plate (33), and the top of the support plate (33) is fixedly connected to the bottom of the platform (121).

7. A double beam weighing sensor according to claim 6, characterized in that: The front side of the platform (121) is fixedly connected to a vibration damping plate (311), the front side of the vibration damping plate (311) is fixedly connected to a controller (31), the controller (31) comprises the vibration damping plate (311), the top of the displacement sensor (32) is electrically connected to the other side of the controller (31) via a wire, one side of the vibrator (3) is electrically connected to the bottom of the controller (31), and the number of the vibrator (3), the controller (31), the displacement sensor (32), the support plate (33), and the compensator (34) are all two and are symmetrically distributed with respect to the center plane of the front and back sides of the scale body (1).

8. A double beam weighing sensor according to claim 2, characterized in that: One side of the sensor body (11) is fixedly connected to the other side of the slide rail clamp (126) on the same side, and the other side of the sensor body (11) is fixedly connected to one side of the slide rail clamp (126) on the same side. The sensor body (11) is located on the top of the upper rubber block (24).

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