CN213779350U

CN213779350U - Flat-plate force sensor

Info

Publication number: CN213779350U
Application number: CN202023350263.5U
Authority: CN
Inventors: 周君豪; 陈栋铭; 周预成
Original assignee: Changzhou Juzhuo Intelligent Technology Co ltd
Current assignee: Changzhou Juzhuo Intelligent Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-07-23
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a dull and stereotyped force cell sensor, it relates to orbital monitoring and train running state monitoring technology field, including the track board, first strain tank and second strain tank have been seted up to track board bottom, be fixed with strain beam, two respectively in first strain tank and the second strain tank strain beam bottom is fixed with four foil gauges respectively, cable joint is worn to be equipped with on track board one side, the cable joint is connected with the foil gauge electricity. By attaching the strain gauge to the bottom of the track slab, the strain beam can be transformed into an electric signal for output to detect, the possibility that abnormal impact force is not detected is reduced, and the maintenance cost is reduced.

Description

Flat-plate force sensor

Technical Field

The application relates to the technical field of monitoring of tracks and monitoring of train running states, in particular to a flat plate force transducer.

Background

In order to ensure the driving safety, the ground monitoring of the motor train unit is more and more important. A ground monitoring system of a motor train unit is a dynamic detection system for wheel tread damage and wheel set faults. The high-speed railway track structure adopts a ballastless track structure, the height between the bottom surface of the steel rail and the track plate is limited, and the ballastless track plate cannot be reconstructed at all.

In the related technology, the rail is laid on the roadbed to play a guiding role for the running of the motor train unit, the motor train unit runs on the rail, and the motor train unit applies pressure to the rail. After the motor train unit runs for a long time, wheels of the motor train unit rub with the track for a long time, and then the motor train unit wheel is prone to tread cracks, and damage of the motor train unit wheel can cause instability of the motor train unit. It is often necessary to manually inspect the motor train unit wheels and rails.

In view of the above-mentioned related technologies, the inventor considers that artificially detecting the abnormal impact force between the rail and the wheel is to identify whether the wheel has a crack or not by naked eyes, and the abnormal impact force between the rail and the wheel cannot be detected in time, so that the wheel is damaged, and the maintenance cost is further increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the wheel is damaged due to the fact that the wheel cannot be corrected timely when abnormal impact force occurs between the rail and the wheel, the application provides a flat plate force transducer.

The application provides a dull and stereotyped force cell sensor adopts following technical scheme:

the utility model provides a dull and stereotyped force cell sensor, includes the track board, first strain tank and second strain tank have been seted up to track board bottom, be fixed with strain beam, two respectively in first strain tank and the second strain tank strain beam bottom is fixed with four foil gauges respectively, cable joint is worn to be equipped with on one side of the track board, cable joint is connected with the foil gauge electricity.

By adopting the technical scheme, the strain gauge is attached to the bottom of the track slab, the strain beam is transformed into the electric signal through deformation and then the electric signal is output to detect, the possibility that abnormal impact force is not detected is reduced, and the maintenance cost is reduced. Through setting up the straining beam, the small atress back deformation volume of straining beam is big, and then the deformation scope that the foil gage was received is bigger to detect more accurate.

Optionally, the track board is located cable joint one side and has seted up first through wires groove, first strain groove is close to first through wires groove one side and offers the third through wires hole that is used for settling the circuit, the second strain groove is close to first through wires groove one side and offers the fourth through wires hole that is used for settling the circuit.

Through adopting above-mentioned technical scheme, through setting up first through wires groove, third through wires hole and fourth through wires hole for foil gage circuit in first strain groove and the second strain groove is placed in the track board, has reduced the possibility that the circuit was placed and is affected with damp outside the track board, thereby has improved the life of circuit.

Optionally, a cover plate is inserted into the notch of the first threading groove.

Through adopting above-mentioned technical scheme, through setting up the apron for the circuit can be sealed in an inclosed space, reduces the rainwater seepage and soaks the possibility of circuit in first threading groove, and then reduces the possibility that the circuit became invalid.

Optionally, a second mounting groove is formed in the bottom of the track plate.

Through adopting above-mentioned technical scheme, through setting up the second mounting groove for the rail reduces the possibility that the foil gage reciprocated after exerting vertical power to the track board, and then has reduced the possibility that the foil gage damaged because of the friction, thereby has reduced the maintenance cost.

Optionally, the bottom of the track slab is provided with a first mounting groove.

Through adopting above-mentioned technical scheme, through setting up first mounting groove, be convenient for place the whole circuit of eight foil gauges, and then conveniently look for when single circuit is ageing or damage and damage the circuit, reduce the possibility that maintainer need unpack apart the track board and maintain, improved work efficiency.

Optionally, the track plate is located at the notch of the first mounting groove and is provided with a limiting groove, and a sealing plate for being inserted into the limiting groove is arranged at the bottom of the track plate.

Through adopting above-mentioned technical scheme, the closing plate provides sealed effect for whole circuit, reduces the possibility of whole circuit and first mounting groove separation, and then reduces the whole circuit and exposes the possibility that wets outside the track board to the maintenance cost has been reduced.

Optionally, a second threading hole is formed in the first strain groove.

Through adopting above-mentioned technical scheme, through setting up the second through wires hole for first strain groove and first mounting groove intercommunication, and then the circuit of being convenient for is direct from the downthehole connecting cable of second through wires and connects, reduces the possibility that the circuit was placed in the track board bottom, reduces the circuit and rocks the cracked possibility of friction when the track board.

Optionally, the track slab is located at the notches of the first strain groove and the second strain groove and is respectively provided with two first arcs, and the notches of the first strain groove and the second strain groove are respectively provided with two second arcs.

Through adopting above-mentioned technical scheme, through setting up first circular arc and second circular arc for sensor force transmits the arm of force that increases for first strain tank and second strain tank, and then the pressure dispersion that first strain tank and second strain tank received can improve the fatigue strength in first strain tank and second strain tank, thereby improves the life of track board.

In summary, the present application includes at least one of the following beneficial technical effects:

by attaching the strain gauge to the bottom of the track slab, the strain beam can be transformed into an electric signal for output to detect, the possibility that abnormal impact force is not detected is reduced, and the maintenance cost is reduced. By arranging the strain beam, the strain beam is small in size and large in deformation amount after being stressed, and further the deformation range received by the strain gauge is larger, so that the detection is more accurate;

through setting up first through wires groove, third through wires hole and fourth through wires hole for foil gage circuit in first strain groove and the second strain groove is placed in the track board, has reduced the possibility that the circuit was placed and is affected with damp outside the track board, thereby has improved the life of circuit.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram of the track slab of the present embodiment.

Fig. 3 is a schematic view of the strain gage installation of the present embodiment.

Fig. 4 is a partially enlarged schematic view at a in fig. 3.

Description of reference numerals: 1. a track plate; 11. a support block; 12. a cable joint; 13. a first threading slot; 131. a cover plate; 14. a first mounting groove; 141. a limiting groove; 142. a sealing plate; 15. a second mounting groove; 151. a first strain tank; 1511. a second threading hole; 1512. a third threading hole; 152. a second strain tank; 1521. a fourth threading hole; 153. a first arc; 154. a second arc; 16. a strain beam; 161. a strain gauge; 2. an insulating plate; 3. a rubber pad; 31. a base plate; 4. a base; 41. an anchor bolt hole; 5. a gauge block; 51. a fixed block; 511. fixing grooves; 6. spike bolts; 7. a spring bar; 71. a supporting strip; 72. a connecting strip; 73. a limiting strip; 74. and (4) fixing the strip.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a flat plate force transducer. Referring to fig. 1, a flat plate force cell sensor includes track board 1, and track board 1 top is fixed with insulating board 2 for the U-shaped, and insulating board 2 top and track both sides butt are through setting up first insulating plate 2 for it is insulating between track board 1 and the track. The bottom of the track slab 1 is fixed with a rubber mat 3 for damping, the bottom of the rubber mat 3 is fixed with two backing plates 31 which are oppositely arranged, the bottom of the backing plate 31 is fixed with a base 4, the bottom of the base 4 is provided with two anchor bolt holes 41 for fixing with the ground, two sides of the track slab 1 are respectively provided with track gauge stoppers 5 which are oppositely arranged, the tops of the two track gauge stoppers 5 are fixed with fixing blocks 51 along the length direction of the track gauge stoppers 5, the fixing blocks 51 are provided with fixing grooves 511 which are opened towards the track along the track gauge stoppers 5, the top of the track slab 1 is provided with two track nail bolts 6, and the two track nail bolts 6 are respectively connected with the two backing plates 31 through threads after passing through the track slab 1. Through setting up spike bolt 6, satisfy the demand that track board 1 was fixed on base 4 when being convenient for change track board 1. Two elastic strips 7 are arranged at the top of the track plate 1, and the two elastic strips 7 are respectively arranged at two sides of the track. Bullet strip 7 includes two support bars 71 with the guide rail butt, and two support bars 71 set up relatively, and two support bars 71 relative outsides are fixed with respectively with the connecting strip 72 of track board 1 butt, and two connecting strips 72 are kept away from support bar 71 one end and are fixed with respectively with the spacing strip 73 of fixed slot 511 butt, and two spacing strips 73 are kept away from connecting strip 72 one end and are fixed with the fixed strip 74 that is the U-shaped, fixed strip 74 top and spike bolt 6 butt. Through setting up bullet strip 7, can reduce the possibility of spike bolt 6 and track board 1 wearing and tearing when restricting the track and rocking from side to side.

Referring to fig. 2 and 3, two supporting blocks 11 for abutting against the spike bolt 6 are fixed at the top of the track plate 1, and the supporting blocks 11 provide a supporting function for the elastic strip 7, so that the possibility of deformation of the elastic strip 7 after being stressed is reduced. The cable joint 12 that is used for receiving the signal of telecommunication is worn to be equipped with on one side of track board 1, and track board 1 is located cable joint 12 one side and sets up the first threading groove 13 of bar, and 13 notch departments of first threading groove are pegged graft into the apron 131 of for the bar, and apron 131 is used for reducing the possibility that internal line wets the wearing and tearing. The bottom of the track plate 1 is provided with a first mounting groove 14 for placing a circuit board. The track plate 1 is provided with a limiting groove 141 at the notch of the first mounting groove 14, and a sealing plate 142 for being inserted into the limiting groove 141 is arranged at the bottom of the track plate 1. The sealing plate 142 may reduce the possibility of moisture on the built-in wiring.

Referring to fig. 3 and 4, a second mounting groove 15 with a square shape is formed at the bottom of the track slab, a first strain mechanism and a second strain mechanism are respectively arranged at two sides of the second mounting groove 15, the first strain mechanism includes a first strain groove 151 arranged in the second mounting groove 15, a second threading hole 1511 is formed in the first strain groove 151, the second threading hole 1511 is communicated with the first mounting groove 14, the second strain mechanism includes a second strain groove 152 arranged in the second mounting groove 15, the first strain groove 151 and the second strain groove 152 are in a strip shape, a first arc 153 and a first arc 153 are respectively arranged at two sides of the first strain groove 151 and the second strain groove 152, the first arc 153 and the first arc 153 are arc surface, the first arc 153 and the second arc 154 are also arranged at the other two sides of the first strain groove 151 and the second strain groove 152, the first arc 153 and the second arc 154 are communicated, the first arc 153 is helpful for improving the fatigue limit of the strain groove, the service life of the track slab 1 is increased. A third threading hole 1512 used for arranging a line is arranged on one side, close to the cover plate 131, of the first strain groove 151, the third threading hole 1512 is communicated with the first threading groove 13, a fourth threading hole 1521 used for arranging a line is arranged on one side, close to the cover plate 131, of the second strain groove 152, and the fourth threading hole 1521 is communicated with the first threading groove 13. The first strain groove 151 and the second strain groove 152 are respectively fixed with a strain beam 16 along the width direction of the track plate 1, the two strain beams 16 are respectively fixed with two strain sheet groups, each strain sheet group comprises two strain sheets 161 which are oppositely arranged, each strain sheet group 161 is respectively arranged at two sides of the wide edge of the first strain groove 151 and the second strain groove 152, and the strain sheets 161 are respectively electrically connected with the cable connector 12.

The implementation principle of the flat plate load cell in the embodiment of the application is as follows: the motor train unit runs on the rail, wheels of the motor train unit rub with the rail, the rail moves up and down after being stressed to apply vertical force to the rail plate 1, the strain beam 16 deforms, the strain sheet 161 receives the deformation of the strain beam 16 and converts the deformation into an electric signal to be output from the cable connector 12, and then the deformation generated by the vertical force applied to the rail plate 1 can be monitored, so that abnormal impact force between the rail and the wheels can be monitored.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A flat plate load cell comprising a track plate (1), characterized in that: first strain groove (151) and second strain groove (152) have been seted up to track board (1) bottom, be fixed with strain beam (16) respectively in first strain groove (151) and second strain groove (152), two strain beam (16) bottom is fixed with four foil gage (161) respectively, cable joint (12) are worn to be equipped with on track board one side, cable joint (12) are connected with foil gage (161) electricity.

2. The flat plate load cell of claim 1, wherein: track board (1) are located cable joint (12) one side and have seted up first through wires groove (13), first strain groove (151) are close to first through wires groove (13) one side and offer third through wires hole (1512) that are used for settling the circuit, second strain groove (152) are close to first through wires groove (13) one side and offer fourth through wires hole (1521) that are used for settling the circuit.

3. The flat plate load cell of claim 2, wherein: a cover plate (131) is inserted in the notch of the first threading groove (13).

4. The flat plate load cell of claim 1, wherein: and a second mounting groove (15) is formed in the bottom of the track plate (1).

5. The flat plate load cell of claim 1, wherein: the bottom of the track plate (1) is provided with a first mounting groove (14).

6. The flat plate load cell of claim 5, wherein: the track plate (1) is located the notch of first mounting groove (14) and has seted up spacing groove (141), track plate (1) bottom is equipped with and is used for the closing plate (142) of pegging graft with spacing groove (141).

7. The flat plate load cell of claim 5, wherein: and a second threading hole (1511) is formed in the first strain groove (151).

8. The flat plate load cell of claim 1, wherein: two first circular arcs (153) are respectively arranged at the notches of the first strain groove (151) and the second strain groove (152) of the track plate (1), and two second circular arcs (154) are respectively arranged at the notches of the first strain groove (151) and the second strain groove (152).