CN210363860U

CN210363860U - Railway clearance inspection device

Info

Publication number: CN210363860U
Application number: CN201920650902.8U
Authority: CN
Inventors: 孙珊珊; 刘一平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-04-21
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a railway clearance inspection device, which comprises an installation device, a positioning device, an elastic coupling, a reset device, an inspection plate, a transmission shaft and a contact device; the mounting device comprises a bearing transverse shaft, a first supporting plate, a second supporting plate and a fixing plate; the positioning device comprises a support column, an elastic piece, an adjusting nut and a roller; the contact device comprises a contact box, a contact mechanism, a cam, a contact shaft and a coupler. The inspection board of the utility model adopts a split structure, which not only ensures smooth action of the inspection board, but also is easy to realize the process; an adjustable positioning device is adopted to keep and position the central position of the inspection plate, so that the horizontal thrust is convenient to adjust; the contact device is independently designed, and is convenient to connect and install.

Description

Railway clearance inspection device

Technical Field

The utility model belongs to the technical field of the rail transit, in particular to railway clearance inspection device.

Background

The clearance inspection device is detection equipment arranged for preventing the bottom of a railway vehicle from rubbing ground equipment during running, when a vehicle lower than the upper clearance of the vehicle speed reducer passes through the clearance inspection device, the clearance inspection device falls down, and signals are cut off, so that an over-limit vehicle cannot pass through the vehicle speed reducer, and the ground equipment is protected. The prior art device is a limit checker, which uses the edge of a movable check board to check the size, so that vehicles meeting the requirements pass through the limit checker, the check board is not affected, and a signal circuit is normal; when the vehicle passes through the device, the inspection board of the device is knocked down, and the mechanical transmission is transmitted to the electric switch to cut off the signal circuit to alarm.

When the conventional limit inspection equipment is used, due to the vibration effect when a train passes through, an inspection plate can loosen and rotate automatically, and an error alarm signal is often given; secondly, when the switch is used outdoors in the open air, the electrical switch which influences contact of the contact points due to temperature and humidity is often failed, and a false alarm signal is given or no alarm signal is given; and thirdly, the inspection plate cannot guarantee vertical work after being frequently knocked down, and the problems that the over-limit vehicle passes through and does not give an alarm and the like often occur.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a railway clearance inspection device, which comprises an installation device, a positioning device, an elastic coupling, a reset device, an inspection plate, a transmission shaft and a contact device;

the mounting device comprises a bearing transverse shaft, a first supporting plate, a second supporting plate and a fixing plate;

the transmission shafts are positioned between the first supporting plate and the second supporting plate and can rotate between the first supporting plate and the second supporting plate, one end of each transmission shaft is axially fixed on the second supporting plate through a round nut, the other end of each transmission shaft is movably supported on the first supporting plate, two adjacent transmission shafts are connected through the elastic coupling, the central axis of each elastic coupling and the central axis of each transmission shaft are on the same straight line, and the surfaces of the transmission shafts are provided with grooves;

the inspection plate is fixed on the transmission shaft and used for triggering signals, and the position of the inspection plate is opposite to the position of the groove relative to the central axis of the transmission shaft;

the positioning device is fixed on the first supporting plate and located between the first supporting plate and the transmission shaft, the positioning device comprises a supporting column, an elastic piece, an adjusting nut and a roller, the elastic piece is sleeved outside the supporting column, the adjusting nut is located at one end, far away from the first supporting plate, of the supporting column and can axially reciprocate along the supporting column, one surface of the adjusting nut is connected with the elastic piece, the roller is located at the other surface of the adjusting nut, the roller is in surface contact with the transmission shaft, and the roller can be clamped into the groove;

the contact device is fixed on the second supporting plate and comprises a contact box, a contact mechanism, a cam, a contact shaft and a coupler, wherein the contact mechanism and the cam are both located inside the contact box, the cam rotates to be capable of being in contact with the contact mechanism, the coupler is located at one end, away from the contact box, of the contact shaft, and the coupler is used for connecting the contact shaft and a transmission shaft.

Furthermore, the two bearing transverse shafts are arranged in parallel, and are positioned at the bottom of the steel rail and are perpendicular to the steel rail.

Furthermore, the first supporting plate and the second supporting plate are both arranged to be U-shaped structures, and two sides of the first supporting plate and two sides of the second supporting plate are respectively fixed on the two bearing transverse shafts.

Furthermore, the number of the second supporting plates is two, the two second supporting plates are located at two ends between the two bearing transverse shafts, the first supporting plate is located at the middle position between the two bearing transverse shafts, and the two second supporting plates are symmetrical about the center line of the first supporting plate.

Furthermore, the fixing plate is of an L-shaped structure, one end of the fixing plate is fixedly connected with the bearing cross shaft, the other end of the fixing plate is fixedly connected with one side of the steel rail, and the bearing cross shaft is fixed at the bottom of the steel rail through the fixing plate.

Further, the surface of the contact shaft is sleeved with a shaft sleeve, and the contact shaft penetrates through the cam.

Furthermore, a key is arranged between the contact point shaft and the contact surface of the cam, and the cam is limited through the key.

Further, the bearings are sleeved at two ends of the contact shaft, the bearing outer ring is fixed on the contact box, and a bearing end cover is arranged on one side of each bearing and used for protecting the bearing.

Further, resetting means includes the torsional spring, the fixed cover of resetting means connects on the transmission shaft surface, resetting means one end is connected with the inspection board, the resetting means other end is connected with first layer board.

Further, the elastic member includes a spring.

The inspection board of the utility model adopts a split structure, which not only ensures smooth action of the inspection board, but also is easy to realize the process; an adjustable positioning device is adopted to keep and position the central position of the inspection plate, so that the horizontal thrust is convenient to adjust; the contact device is independently designed, and is convenient to connect and install.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 shows a schematic view of the overall structure of the present invention;

fig. 2 shows an enlarged view of a portion a of fig. 1 of the present invention;

figure 3 shows a side view of the positioning device of the present invention;

fig. 4 shows a schematic structural diagram of the contact device of the present invention;

fig. 5 shows an exploded view of the contact shaft and cam connection of the present invention.

In the figure: 1. a mounting device; 11. a first pallet; 12. a second pallet; 13. a load bearing cross shaft; 14. a fixing plate; 2. a drive shaft; 3. an elastic coupling; 4. inspecting the board; 5. a positioning device; 51. a roller; 52. adjusting the mother; 53. an elastic member; 54. a pillar; 6. a groove; 7. a contact device; 71. a contact mechanism; 72. a contact box; 73. a cam; 74. a coupling; 75. a bearing end cap; 76. a bearing; 77. a contact shaft; 78. a shaft sleeve; 79. a key; 8. a resetting device; 9. a steel rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a railway clearance inspection device, figure 1 shows the utility model discloses an overall structure schematic diagram, as shown in figure 1, the device is including installation device 1, positioner 5, resilient coupling 3, resetting means 8, inspection board 4, transmission shaft 2 and contact device 7. Specifically, the mounting device 1 comprises a carrying cross shaft 13, a first support plate 11, a second support plate 12 and a fixing plate 14. The two bearing transverse shafts 13 are arranged in parallel, but not limited to two, and the two bearing transverse shafts 13 are both located at the bottom of the steel rail 9 and are arranged perpendicular to the steel rail 9. The first supporting plate 11 and the second supporting plate 12 are both configured to be U-shaped structures, two sides of the first supporting plate 11 and the second supporting plate 12 are respectively fixed on two bearing transverse shafts 13, exemplarily, the second supporting plate 12 is configured to be two, the first supporting plate 11 is configured to be one, the two second supporting plates 12 are located at two ends between the two bearing transverse shafts 13, the first supporting plate 11 is located at a middle position between the two bearing transverse shafts 13, and the two second supporting plates 12 are symmetrical about a center line of the first supporting plate 11. The fixing plate 14 is of an L-shaped structure, one end of the fixing plate 14 is fixedly connected with the bearing transverse shaft 13, the other end of the fixing plate 14 is fixedly connected with one side of the steel rail 9, and the bearing transverse shaft 13 is fixed at the bottom of the steel rail 9 through the fixing plate 14. The transmission shaft 2 is located between the first supporting plate 11 and the second supporting plate 12 and can rotate between the first supporting plate 11 and the second supporting plate 12, the embodiment is described by taking two transmission shafts 2 as an example, but not limited to two, one end of the transmission shaft 2 is axially fixed on the second supporting plate 12 through a round nut, but the rotation of the transmission shaft 2 is not affected, so that the axial stability of the contact part is ensured, the other end of the transmission shaft 2 moves about and is supported on the first supporting plate 11, and the mode that one end of the transmission shaft 2 is fixed and moves about is more suitable for the long shaft with large span. Two adjacent transmission shafts 2 are connected through an elastic coupling 3, wherein the central axis of the elastic coupling 3 is on the same straight line with the central axis of the transmission shafts 2, and when one transmission shaft 2 rotates, the adjacent transmission shafts 2 can be driven to rotate together. The transmission shaft 2 does not use a whole root, so that smooth action of the inspection plate 4 is ensured, and the process is easy to realize. Each transmission shaft 2 is provided with an inspection plate 4 for triggering signals, and when the signals are not triggered, the inspection plates 4 are in a vertical state. The inspection plate 4 adopts a split structure, and each transmission shaft 2 is provided with an independent inspection plate 4, so that smooth action of the inspection plate 4 is ensured, and the process is easy to realize. The surface of every transmission shaft 2 all fixedly cup joints a resetting means 8, and the resetting means 8 of this embodiment explains with the torsional spring as an example, but not limited to the torsional spring, the one end and the inspection board 4 fixed connection of torsional spring, the other end and the 11 fixed connection of first layer board of torsional spring, when transmission shaft 2 atress takes place to rotate, the torsional spring will take place to deform, after the power that transmission shaft 2 received disappears, torsional spring deformation resumes, drives transmission shaft 2 and changes back to original position. The positioning device 5 is fixed on the first supporting plate 11 and positioned between the first supporting plate 11 and the transmission shaft 2, and the contact device 7 is fixed on the second supporting plate 12.

Fig. 2 shows an enlarged view of a portion a in fig. 1 of the present invention, as shown in fig. 2, the view includes a positioning device 5, and the present embodiment takes one positioning device 5 as an example, but is not limited to one. Specifically, the positioning device 5 includes a support 54, an elastic member 53, an adjusting nut 52, and a roller 51. The elastic member 53 of the present embodiment is illustrated by taking a spring as an example, but is not limited thereto, the spring is sleeved outside the support 54, the adjusting nut 52 is located at one end of the support 54 far away from the first supporting plate 11, and the adjusting nut 52 can reciprocate along the axial direction of the support 54. One side of the adjusting nut 52 is connected with the spring, the adjusting nut 52 will drive the spring to stretch when moving back and forth, the roller 51 is located on the other side of the adjusting nut 52, and the roller 51 can rotate on the adjusting nut 52. Wherein,

gyro wheel

51 and 2 surface contact of transmission shaft, there is recess 6 on 2 surfaces of transmission shaft, and recess 6 position is relative about 2 axis of transmission shaft with inspection board 4 positions, gyro wheel 51 can block in recess 6, as shown in fig. 3, when transmission shaft 2 rotates, gyro wheel 51 can roll along 2 surfaces of transmission shaft, when gyro wheel 51 rolls recess 6 positions, under the effect of spring elasticity, gyro wheel 51 can block in recess 6, and then stabilize transmission shaft 2, and inspection board 4 at this moment just in time is in vertical state, avoid inspection board 4 to take place to rock the inspection that influences next time, adopt adjustable positioner 5, a central point who is used for keeping and fixing a position inspection board 4 puts, be convenient for adjust horizontal thrust. Illustratively, the pillar 54 is an expansion link, but is not limited thereto, the expansion link includes an expansion portion and a fixing portion, the fixing portion is fixed on the first supporting plate 11, the outer surface of the expansion portion is provided with external threads, the adjusting nut 52 is in threaded connection with the expansion portion through the external threads, the adjusting nut 52 can be rotated to enable the adjusting nut 52 to move along the axial direction of the expansion link, the spring is located between the fixing portion and the adjusting nut 52 and sleeved on the expansion portion, the pressure of the spring can be adjusted by adjusting the position of the adjusting nut 52, the roller 51 is located at the top end of the expansion portion, when the roller 51 is clamped into the groove 6, the larger the pressure of the spring is, the more difficult the expansion portion is to retract, the more the roller 51 is difficult to be separated from the groove 6, the more the transmission shaft 2.

Fig. 4 shows a schematic structural diagram of the contact device of the present invention, as shown in fig. 4, the contact device 7 includes a contact box 72, a contact mechanism 71, a cam 73, a contact shaft 77, and a coupler 74, the contact mechanism 71 and the cam 73 are both located inside the contact box 72, and the cam 73 can contact with the contact mechanism 71 when rotating, so as to transmit a signal, wherein the contact mechanism 71 includes a copper sheet and has elasticity. Due to the special structure of the cam 73, the connection of the contact mechanism 71 is not affected when the inspection board 4 shakes within a certain angle range. The two second supporting plates 12 are respectively provided with the contact point device 7, so that the two contact point devices 7 are redundant, and the use efficiency of the equipment is improved. The coupling 74 is located at one end of the joint shaft 77 far from the joint box 72, and the coupling 74 is used for coupling the joint shaft 77 and the transmission shaft 2, and when the transmission shaft 2 rotates, the joint shaft 77 is driven to rotate. Illustratively, when the inspection board 4 is knocked down, the inspection board 4 drives the transmission shaft 2 to rotate, the transmission shaft 2 drives the contact shaft 77 to rotate, and the contact shaft 77 drives the cam 73 to rotate, so that the cam 73 is contacted with the contact mechanism 71, and an alarm signal is sent. Fig. 5 shows the explosion diagram of the connection between the contact shaft and the cam, as shown in fig. 5, the shaft sleeve 78 is sleeved on the surface of the contact shaft 77, the contact shaft 77 runs through the cam 73, a key 79 is arranged between the contact surface of the contact shaft 77 and the contact surface of the cam 73, the cam 73 is limited by the key 79, the cam 73 is prevented from slipping on the contact shaft 77, and the cam 73 is convenient to rotate. Both ends of the contact shaft 77 are sleeved with bearings 76, the outer ring of each bearing 76 is fixed on the contact box 72, the rotation of the contact shaft 77 is facilitated, a bearing end cover 75 is arranged on one side of each bearing 76, and the bearing end covers 75 are used for protecting the bearings 76 and preventing dust from entering the bearings 76. The contact device 7 is designed independently, leaves the factory as a whole after assembly and adjustment, is convenient to connect and install on site through the coupler 74, wherein the coupler 74 selects the existing product, such as a diaphragm coupler, a quincunx coupler or a cross coupler, has the functions of shock absorption and buffering, is beneficial to the stability and reliability of contact work, and can compensate position and angle deviation through the own function of the coupler 74 when the site installation can not ensure accurate axial positioning.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A railway clearance inspection device, the device includes installation device, positioner, resilient coupling, resetting means, inspection board, transmission shaft and contact device, its characterized in that:

2. The railway clearance inspection apparatus of claim 1, wherein the load-bearing cross-shafts are arranged in two parallel arrangements, both of the load-bearing cross-shafts being located at the bottom of the rail and being arranged perpendicular to the rail.

3. The railway clearance inspection apparatus of claim 1, wherein the first and second support plates are each provided in a U-shaped configuration, and the first and second support plates are fixed on two lateral bearing shafts, respectively.

4. The railway clearance inspection apparatus of claim 1, wherein the second support plates are provided in two, two of the second support plates are positioned at both ends between the two load-bearing lateral shafts, the first support plate is positioned at a middle position between the two load-bearing lateral shafts, and the two second support plates are symmetrical about a center line of the first support plate.

5. The railway clearance inspection apparatus of claim 1, wherein the fixing plate is provided in an L-shaped configuration, one end of the fixing plate is fixedly connected to the bearing cross shaft, the other end of the fixing plate is fixedly connected to one side of the rail, and the bearing cross shaft is fixed to the bottom of the rail through the fixing plate.

6. The railway clearance inspection apparatus of claim 1, wherein a bushing is fitted over a surface of the contact shaft, the contact shaft extending through the cam.

7. The railway clearance inspection apparatus of claim 1, wherein a key is provided between the contact shaft and a contact surface of the cam, and the cam is restricted by the key.

8. The railway clearance inspection apparatus of claim 1, wherein bearings are sleeved on both ends of the contact shaft, the bearing outer ring is fixed on the contact box, and a bearing end cover is arranged on one side of the bearing and used for protecting the bearing.

9. The railway clearance inspection apparatus of claim 1, wherein the return means comprises a torsion spring, the return means is fixedly secured to the surface of the transmission shaft, one end of the return means is connected to the inspection plate, and the other end of the return means is connected to the first support plate.

10. The railway clearance inspection apparatus of any one of claims 1 to 9, wherein the resilient member comprises a spring.