Trolley for measuring skewness of railroad sleeper

Abstract

The invention discloses a handcart for measuring the skewness of a railroad sleeper, and the handcart comprises a plurality of turnover type telescopic arms which are installed on an assembly seat at intervals, a wheel type walking mechanism is installed at one end, far away from the assembly seat, of each turnover type telescopic arm, and a skewness measuring mechanism is installed in the middle of the upper end of the assembly seat. Two connecting arms are symmetrically installed on the skewness measuring mechanism, each connecting arm extends to one end of the sleeper from the skewness measuring mechanism in the length direction of the sleeper, an active jacking mechanism is installed on each connecting arm, an active side pressing mechanism is installed on the lower portion of each active jacking mechanism, and the active side pressing mechanisms are connected with the active jacking mechanisms. And a hand push rod is arranged on the assembly seat or the wheel type walking mechanism. The device can quickly and accurately detect the skewness of the sleeper, improves the detection maneuverability, is convenient to carry and transport, and reduces the operation difficulty. The method is suitable for the technical field of sleeper skewness detection in rail transit.

Description

Technical Field

[0001] The invention belongs to the technical field of sleeper detection in rail transit, and in particular relates to a trolley for measuring the skewness of railway sleepers. Background Art

[0002] At present, in the construction of railway tracks, the laying of sleepers is extremely important and is one of the important factors affecting driving safety. Whether it is the laying of sleepers or the long-term use in the later stage, skewness will occur. Generally, the skewness is divided into one side of the sleeper being higher than the other side, or the length direction of the sleeper is in a non-vertical state with the length direction of the rail, or a combination of the above two situations. Therefore, it is necessary to detect the skewness of the sleepers during the laying of sleepers to correct the sleepers and ensure the accuracy of the laying of sleepers. And in the long-term operation of railway tracks, it is also necessary to regularly detect the skewness of sleepers, correct the sleepers, or mark the skewed sleepers for subsequent unified correction. It can be seen from this that there is an urgent need for a more convenient and low-cost detection equipment to quickly and accurately detect the skewness of sleepers, improve the mobility of detection, and be easy to carry and transport. Summary of the invention

[0003] The invention provides a trolley for measuring the skewness of railway sleepers, which is used for quickly and accurately detecting the skewness of sleepers, improves the mobility of detection, is easy to carry and transport, and reduces the difficulty of operation.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A trolley for measuring the skewness of railway sleepers comprises a plurality of flip telescopic arms installed at intervals on an assembly seat, a wheeled running mechanism is installed at one end of each flip telescopic arm away from the assembly seat, a skewness measuring mechanism is installed at the middle of the upper end of the assembly seat, two connecting arms are symmetrically installed on the skewness measuring mechanism, each connecting arm extends from the skewness measuring mechanism along the length direction of the sleeper to one end of the sleeper, an active top pressing mechanism is installed on each connecting arm, an active side pressing mechanism is installed at the lower part of each active top pressing mechanism, and a push rod is installed on the assembly seat or the wheeled running mechanism.

[0005] Furthermore, the assembly seat includes a plate-like seat body in a rectangular shape, and strip fixing plates are respectively constructed at the four corners of the plate-like seat body, each of the strip fixing plates extends along the length direction of the track, and a first strip hole is opened on each strip fixing plate, and each of the first strip holes extends along the length direction of the track. The number of the flip-type telescopic arms is four, and one end of each flip-type telescopic arm is detachably connected to the plate-like seat body through the corresponding first strip hole.

[0006] Furthermore, the flip telescopic arm includes a plug-in tube at one end of which is detachably connected to the plate-like base body through a first strip hole, one end of the plug-in rod is inserted into the plug-in tube, the other end of the plug-in rod extends outward along the horizontal direction of the track, and the end of the plug-in rod away from the plug-in tube is detachably connected to the wheeled running mechanism.

[0007] Furthermore, a first articulated seat is constructed at the end of the plug-in tube away from the wheeled running mechanism, the first articulated seat is articulated with the second articulated seat via an articulated shaft, and two limit holes are arranged on the first articulated seat at intervals in the horizontal direction, each of the limit holes passes through the first articulated seat and the second articulated seat, and the articulated shaft is located between the two limit holes, the distance between the articulated shaft and the two limit holes is equal, and a limit pin is inserted in each limit hole; a vertical connecting joint is constructed below the second articulated seat, a threaded joint is constructed at the lower end of the vertical connecting joint, and a blocking edge extending radially outward along the vertical connecting joint is constructed between the vertical connecting joint and the threaded joint, the lower end of the threaded joint passes through the first strip hole, a locking nut is threadedly connected to the threaded joint, and the locking nut is screwed to the lower end of the strip fixing plate.

[0008] Furthermore, a second strip hole is opened on the outer peripheral wall of the plug tube, and the second strip hole extends along the length direction of the plug tube. A plurality of connecting holes are opened on the surface of the plug rod corresponding to the second strip hole, and these connecting holes are arranged at intervals along the length direction of the plug rod.

[0009] Furthermore, the wheeled running mechanism includes a vertical rod or a vertical electric cylinder detachably connected to the flip telescopic arm, a connecting wheel seat is connected to the lower end of the vertical rod or the vertical electric cylinder, a connecting wheel axle is rotatably connected to the connecting wheel seat, the connecting wheel axle extends laterally along the track, a track wheel is coaxially mounted on the connecting wheel axle, and a running wheel coinciding with its axis is detachably connected to the track wheel.

[0010] Furthermore, the skewness measuring mechanism includes an assembly column whose lower end is detachably connected to an assembly seat, a connecting joint is constructed at the upper end of the assembly column, a joint sleeve is movably mounted outside the connecting joint, a connecting seat is detachably connected to the joint sleeve, an angle sensor and an inclination sensor are installed on the connecting seat, and an elastic connecting piece is installed between the connecting seat and the connecting joint.

[0011] Furthermore, the elastic connecting member includes a first spring and a second spring with opposite rotation directions, the second spring is coaxially arranged in the first spring, and the upper ends of the first spring and the second spring are fixedly connected to the lower end of the connecting seat, and the lower ends of the first spring and the second spring are fixedly connected to the upper end of the connecting joint.

[0012] Furthermore, the connecting arm includes an arm-shaped body with a plate-shaped joint at one end, the plate-shaped joint is detachably connected to the skewness measuring mechanism, and a third strip hole extending along the length direction of the arm-shaped body is opened on the arm-shaped body; the active top-pressing mechanism includes a vertically arranged vertical driving member, a first top-connecting ball is rotatably connected to the lower end of the vertical driving member, and a first ball head is constructed at the upper end of the vertical driving member, the first ball head is movably assembled in a first bowl-shaped seat at the lower end of the externally threaded tube, and two first arc-shaped limiting strips are symmetrically constructed on the outer circumferential surface of the first ball head, and the two first arc-shaped limiting strips are symmetrically constructed along the track The first threaded tube is provided with a third spring, the third spring having a lower end fixedly connected to the upper end of the first ball head, the upper end of the third spring being rotatably connected to the first adjusting bolt through the first spring seat, the first adjusting bolt being threadedly connected to the upper end cover at the upper end of the externally threaded tube, the upper end of the externally threaded tube passing through the third strip-shaped hole, and a fastening nut being threadedly connected to the externally threaded tube.

[0013] Furthermore, the active lateral pressure mechanism includes a lateral driving member extending along the length direction of the track, the lateral driving member is rotatably connected to a second top-receiving ball at one end away from the active top-pressing mechanism, a second ball head is constructed at the other end of the lateral driving member, the second ball head is movably assembled in a second bowl-shaped seat, the second bowl-shaped seat is constructed on the active top-pressing mechanism, two second arc-shaped limiting strips are symmetrically constructed on the outer peripheral surface of the second ball head, the two second arc-shaped limiting strips are arranged at intervals along the lateral direction of the track, and each second arc-shaped limiting strip extends in an arc shape in the horizontal direction along the outer peripheral wall of the second ball head, two second arc-shaped limiting grooves are provided in the second bowl-shaped seat, and the two second arc-shaped limiting strips are respectively assembled in the two second arc-shaped limiting grooves; a fourth spring extending along the length direction of the track is installed in the assembly cavity of the active top-pressing mechanism, one end of the fourth spring is fixedly connected to the end of the second ball head, the other end of the fourth spring is rotatably connected to the second adjusting bolt through the second spring seat, the second adjusting bolt is threadedly connected to the side end cover, and the side end cover is detachably connected to the opening end of the assembly cavity.

[0014] Since the present invention adopts the above structure, compared with the prior art, the technical progress achieved is that: the present invention can realize the entire trolley across both sides of the track or on one side of the track by adjusting the extension direction of multiple flip telescopic arms; specifically, when flipping one or more flip telescopic arms, the flip telescopic arms are evenly divided into two groups and extend toward both sides of the track respectively, so that both sides of the track are distributed with wheeled running mechanisms, thus achieving the purpose of the trolley crossing the track and walking; when adjusting some flip telescopic arms to flip, the flip telescopic arms extend toward one side of the track, so that all wheeled running mechanisms are located on one side of the track, thus achieving the purpose of the trolley walking on one side of the track. The above two walking modes are adjusted according to the specific track conditions. Generally, when there are no obstacles or gullies on both sides of the track, the walking mode across the track is adopted, and when there are obstacles or gullies on one side of the track, the walking mode on one side of the track is adopted. The present invention uses two active top-pressing mechanisms to press against both sides of the upper end surface of the sleeper, and the extension degree of the two is the same, so that a parallelogram is formed between the sleeper, the connecting arm and the two active top-pressing mechanisms, that is, the inclination of the connecting arm is consistent with the inclination of the sleeper, and the inclination is finally reflected in the skewness measuring mechanism. The present invention controls the two active top-pressing mechanisms to extend downward synchronously, so that the two active side-pressing mechanisms are both located at one end of the sleeper along the length direction of the track, and then controls the two active side-pressing mechanisms to extend synchronously along the horizontal plane and perpendicular to the sleeper, and press against the front end surface or the rear end surface of the sleeper, and the extension degree of the two is the same, so that the active side-pressing mechanism drives the connecting arm to twist a certain angle along the axis of the skewness measuring mechanism through the active top-pressing mechanism, and the twisted angle is reflected in the skewness measuring mechanism. The present invention can install a Beidou positioning template on the assembly seat to position the detected sleeper for subsequent correction operations. Moreover, the wheeled running mechanism of the present invention can run on the rails of the track or on the track bed, and when the track bed is uneven, the skewness measuring mechanism can be horizontally corrected to avoid deviations in the detected data. In summary, the present invention can quickly and accurately detect the skewness of the sleeper, improves the mobility of the detection, is easy to carry and transport, and reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention in a walking state across a track; Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention in a single-side track walking state; Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention after removing the flip telescopic arm and the wheeled traveling mechanism; Figure 4 This is a schematic diagram of the structure of the connection between the wheeled traveling mechanism and the flip telescopic arm according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the flip telescopic arm after being disassembled according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the wheeled running mechanism after being disassembled according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a skewness measuring mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the skewness measurement mechanism after being disassembled according to an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of the connection of the connecting arm, the active top-pressing mechanism and the active side-pressing mechanism according to an embodiment of the present invention; Fig.10 A cross-sectional view of the structure of the active top pressure mechanism and the active side pressure mechanism connected in an embodiment of the present invention; Fig.11 for Fig.10 A magnified view of the structure of the middle A part; Fig.12 for Fig.10 A magnified view of the structure of the middle B area; Fig.13 It is a schematic diagram of the structure of the partially disassembled active top pressure mechanism and the active side pressure mechanism in an embodiment of the present invention; Fig.14 It is a schematic diagram of the local structure of the active top pressing mechanism after being disassembled according to an embodiment of the present invention; Fig.15 It is a schematic diagram of the partially disassembled structure of the active side pressure mechanism according to an embodiment of the present invention.

[0017] Labeled parts: 100-assembly seat, 101-plate seat, 102-strip fixing plate, 103-first strip hole, 200-flip telescopic arm, 201-plug-in tube, 202-second strip hole, 203-first hinge seat, 204-hinge shaft, 205-limiting hole, 206-second hinge seat, 207-vertical connection joint, 208-threaded joint, 209-stop edge, 210-locking nut, 211-plug-in rod, 212-connection hole, 213-adapter seat, 214 -fixing sleeve, 300-wheeled running mechanism, 301-vertical rod, 302-connecting wheel seat, 303-connecting wheel axle, 304-track wheel, 305-running wheel, 306-assembly hole, 400-skewness measuring mechanism, 401-assembly column, 402-connecting joint, 403-horizontal deflection scale, 404-first spring, 405-second spring, 406-joint sleeve, 407-reference scale, 408-connecting ear, 409-connecting seat, 410-tilt sensor, 411- 1- inclination scale, 500- connecting arm, 501- arm-shaped body, 502- plate-shaped joint, 503- third strip hole, 600- active top pressure mechanism, 601- first electric cylinder body, 602- first electric cylinder rod, 603- first assembly set, 604- first top ball, 605- first ball head, 606- external threaded tube, 607- first bowl-shaped seat, 608- tube cavity, 609- third spring, 610- first spring seat, 611- upper end cover, 612- first adjusting bolt, 61 3-first arc-shaped limiting strip, 614-first arc-shaped limiting groove, 700-active side pressure mechanism, 701-second electric cylinder body, 702-second electric cylinder rod, 703-second assembly set, 704-second top receiving ball, 705-second ball head, 706-second bowl-shaped seat, 707-assembly cavity, 708-fourth spring, 709-second spring seat, 710-side end cover, 711-second adjusting bolt, 712-second arc-shaped limiting strip, 713-second arc-shaped limiting groove, 800-hand push rod. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] The invention discloses a trolley for measuring the skewness of railway sleepers. Figure 1-15As shown, it includes an assembly seat 100, a skewness measuring mechanism 400, two active top-pressing mechanisms 600, two active side-pressing mechanisms 700 and a plurality of flip-type telescopic arms 200. The plurality of flip-type telescopic arms 200 are installed on the assembly seat 100 at intervals, a wheeled running mechanism 300 is installed at one end of each flip-type telescopic arm 200 away from the assembly seat 100, a skewness measuring mechanism 400 is installed in the middle of the upper end of the assembly seat 100, and two connecting arms 500 are symmetrically installed on the skewness measuring mechanism 400, the two connecting arms 500 extend in opposite directions, and each connecting arm 500 extends from the skewness measuring mechanism 400 along the length direction of the sleeper to one end of the sleeper. The two active top-pressing mechanisms 600 of the present invention are respectively installed on the two connecting arms 500, and the two active side-pressing mechanisms 700 are respectively installed at the lower positions of the two active top-pressing mechanisms 600. In addition, in order to facilitate driving the entire trolley forward, a push rod 800 is installed on the assembly seat 100 or the wheeled running mechanism 300. The working principle and advantages of the present invention are: the present invention can realize that the entire trolley spans across both sides of the track or is formed on one side of the track by adjusting the extension direction of multiple flip telescopic arms 200; specifically, when flipping one or more flip telescopic arms 200, the flip telescopic arms 200 are evenly divided into two groups and extend toward both sides of the track, respectively, so that the wheeled running mechanisms 300 are evenly distributed on both sides of the track, that is, Figure 1 The form shown in the figure, in this way, the purpose of the trolley crossing the track and walking is achieved; when the adjustment part of the flip telescopic arm 200 is flipped, the flip telescopic arm 200 is extended toward one side of the track, so that all the wheeled running mechanisms 300 are located on one side of the track, that is, Figure 2The form shown achieves the purpose of the trolley walking on one side of the track. The above two walking modes are adjusted according to the specific track conditions. Generally, when there are no obstacles or gullies on both sides of the track, the mode of walking across the track is adopted. When there are obstacles or gullies on one side of the track, the mode of walking on one side of the track is adopted. The present invention uses two active pressing mechanisms 600 to press the two sides of the upper end surface of the sleeper, and the extension degree of the two is the same, so that a parallelogram is formed between the sleeper, the connecting arm 500 and the two active pressing mechanisms 600, that is, the inclination of the connecting arm 500 is consistent with the inclination of the sleeper, and the inclination is finally reflected on the skewness measuring mechanism 400. The present invention controls two active top-pressing mechanisms 600 to extend downward synchronously, so that the two active side-pressing mechanisms 700 are both located at one end of the sleeper along the length direction of the track. Afterwards, the two active side-pressing mechanisms 700 are controlled to extend synchronously along the horizontal plane and perpendicular to the direction of the sleeper, and press the front end face or the rear end face of the sleeper, and the extension degree of the two is the same, so that the active side-pressing mechanism 700 drives the connecting arm 500 to twist a certain angle along the axis of the skewness measuring mechanism 400 through the active top-pressing mechanism 600, and the twisting angle is reflected on the skewness measuring mechanism 400. The present invention can install a Beidou positioning template on the assembly seat 100 to locate the detected sleeper for subsequent correction operations. Moreover, the wheeled running mechanism 300 of the present invention can run on the steel rails of the track, and can also run on the track bed, and when the track bed is uneven, the skewness measuring mechanism 400 can be horizontally corrected to avoid deviations in the detected data. In summary, the present invention can quickly and accurately detect the skewness of the sleeper, improves the mobility of detection, is easy to carry and transport, and reduces the difficulty of operation.

[0020] As a preferred embodiment of the present invention, Figure 3 As shown, the assembly seat 100 includes a rectangular plate-shaped seat body 101, and strip-shaped fixing plates 102 are respectively constructed at the four corners of the plate-shaped seat body 101, each strip-shaped fixing plate 102 extends along the length direction of the track, and a first strip-shaped hole 103 is opened on each strip-shaped fixing plate 102, and each first strip-shaped hole 103 extends along the length direction of the track. In this embodiment, the number of the flip-type telescopic arms 200 is four, and one end of each flip-type telescopic arm 200 is detachably connected to the plate-shaped seat body 101 through the corresponding first strip-shaped hole 103, and the position of the flip-type telescopic arm 200 connected to the first strip-shaped hole 103 can be adjusted, so that when all the flip-type telescopic arms 200 extend along one side of the track, the wheeled running mechanisms 300 and the wheeled running mechanisms 300 and the adjacent flip-type telescopic arms 200 are staggered with each other, avoiding mutual interference and affecting the rotation and walking of the wheeled running mechanisms 300.

[0021] As a preferred embodiment of the present invention, Figure 4 , 5 As shown, the flip telescopic arm 200 includes a plug-in tube 201 and a plug-in rod 211. One end of the plug-in tube 201 is detachably connected to the plate-like base 101 through the first strip hole 103, one end of the plug-in rod 211 is inserted into the plug-in tube 201, the other end of the plug-in rod 211 extends outwardly along the lateral direction of the track, and the end of the plug-in rod 211 away from the plug-in tube 201 is detachably connected to the wheeled running mechanism 300. The specific connection method between the plug-in tube 201 and the plate-like seat body 101 in this embodiment is that a first articulated seat 203 is constructed at one end of the plug-in tube 201 away from the wheeled running mechanism 300, and the first articulated seat 203 is hinged with the second articulated seat 206 through a hinge shaft 204, and two limiting holes 205 are arranged on the first articulated seat 203 at intervals in the horizontal direction, each limiting hole 205 passes through the first articulated seat 203 and the second articulated seat 206, and the hinge shaft 204 is located between the two limiting holes 205, and the two limiting holes 205 are at an equal distance from the hinge shaft 204, and a limiting pin is inserted in each limiting hole 205, so that after flipping the plug-in tube 201 by 180°, the two limiting pins are respectively inserted into the two limiting holes 205, thereby locking the first articulated seat 203 and the second articulated seat 206, so that the position of the plug-in tube 201 is locked, thereby achieving the purpose of locking the flip telescopic arm 200 after flipping. In this embodiment, a vertical connection joint 207 is configured below the second hinge seat 206, a threaded joint 208 is configured at the lower end of the vertical connection joint 207, a stop edge 209 is configured between the vertical connection joint 207 and the threaded joint 208, and the stop edge 209 extends radially outward from the vertical connection joint 207. In this embodiment, the lower end of the threaded joint 208 passes through the first strip hole 103, a locking nut 210 is threadedly connected to the threaded joint 208, the locking nut 210 is screwed on the lower end of the strip fixing plate 102, and the stop edge 209 is tightly abutted against the upper end of the strip fixing plate 102. In this embodiment, a second strip hole 202 is provided on the outer peripheral wall of the plug-in tube 201, and the second strip hole 202 extends along the length direction of the plug-in tube 201. A plurality of connection holes 212 are provided on the surface of the plug-in rod 211 corresponding to the second strip hole 202, and the connection holes 212 are arranged at intervals along the length direction of the plug-in rod 211. In this way, the position of the wheeled running mechanism 300 is adjusted by adjusting the length of the plug-in rod 211 inserted into the plug-in tube 201, so that the wheeled running mechanism 300 can run on the rail or on one side of the rail, and then a plurality of connection bolts are passed through the second strip hole 202 and the corresponding connection hole 212 to fix the plug-in tube 201 and the plug-in rod 211.

[0022] As a preferred embodiment of the present invention, Figure 4-6As shown, the wheeled running mechanism 300 includes a vertical rod 301 or a vertical electric cylinder. An adapter seat 213 is constructed at one end of the plug-in rod 211 of the flip telescopic arm 200 away from the plug-in tube 201, and a fixing sleeve 214 is constructed on the adapter seat 213. The upper end of the vertical rod 301 or the vertical electric cylinder passes through the fixing sleeve 214 upward from the lower end of the fixing sleeve 214, and the vertical rod 301 or the vertical electric cylinder is locked on the fixing sleeve 214 by at least one locking bolt. The vertical connection position between the vertical rod 301 or the vertical electric cylinder and the fixing sleeve 214 is adjusted by loosening the locking bolt. After the adjustment is completed, the locking bolt is tightened. In this embodiment, in order to facilitate the assembly seat 100 and the skewness measuring mechanism 400 thereon to be in a horizontal state before detection, the vertical electric cylinder is preferably used. In this embodiment, a connecting wheel seat 302 is connected to the lower end of the vertical electric cylinder, and a connecting wheel shaft 303 is rotatably connected to the connecting wheel seat 302. The connecting wheel shaft 303 extends in the horizontal direction of the track, and a track wheel 304 is coaxially mounted on the connecting wheel shaft 303. The track wheel 304 is installed on the rail, and the purpose of walking with the rail as the medium can be achieved. Its main advantage is that the walking resistance is small, and the skewness of the front assembly seat 100 and the skewness measuring mechanism 400 is low before detection, and the correction is more convenient. In this embodiment, when the sleepers are laid and the rails are not installed, the track wheel 304 cannot smoothly walk on the outside of the sleepers. In order to overcome this problem, the measures taken are to set a running wheel 305 on one side of the track wheel 304, and the end face of the running wheel 305 corresponding to the track wheel 304 is provided with a plurality of assembly holes 306. The running wheel 305 is detachably connected to the track wheel 304 through a plurality of fixing bolts passing through these assembly holes 306, and the axes of the two coincide. In this embodiment, a power motor can also be installed on the connecting wheel seat 302. The output shaft of the power motor is coaxially connected to the connecting wheel shaft 303, and then the power motor is used to drive the track wheel 304 or the running wheel 305 to rotate, thereby achieving the purpose of moving the entire trolley forward. The inspector only needs to hold the handrail push rod 800, saving the inspector's physical strength.

[0023] As a preferred embodiment of the present invention, Figure 7 , 8As shown, the skewness measuring mechanism 400 includes an assembly column 401, a connection seat 409, an elastic connection, an angle sensor and an inclination sensor 410. Among them, the lower end of the assembly column 401 is configured with a connection flange, and the connection flange is detachably connected to the assembly seat 100. A connection joint 402 is configured at the upper end of the assembly column 401, and a joint sleeve 406 is movably mounted outside the connection joint 402, and a connection seat 409 is detachably connected to the joint sleeve 406. The angle sensor and the inclination sensor 410 are both installed on the connection seat 409. When the connection seat 409 is tilted or twisted relative to the connection joint 402 along with the joint sleeve 406, the torsion angle or the tilt angle is detected, and then the vertical tilt degree of the sleeper or the horizontal deflection degree of the sleeper is obtained. The elastic connector of this embodiment is assembled between the connection seat 409 and the connection joint 402. During the detection process, when the connection joint 402 and the connection seat 409 move relative to each other, the elastic connector undergoes a certain elastic deformation and stores energy; after the detection is completed, the elastic connector elastically returns to its original position, thereby returning the connection seat 409. In order to improve the accuracy of the return, and to ensure that the elastic connector always has good elastic properties in long-term use, avoid the reduction of elastic properties, and have good elastic torsion and elastic bending capabilities, the measures taken in this embodiment are that the elastic connector includes a first spring 404 and a second spring 405, wherein the spiral directions of the first spring 404 and the second spring 405 are opposite, that is, one of them is in the form of forward rotation and the other is in the form of reverse rotation. The second spring 405 is arranged in the first elastic, and the axes of the two coincide. The upper end of the first spring 404 and the upper end of the second spring 405 of this embodiment are both fixedly connected to the lower end of the connection seat 409, and the lower end of the first spring 404 and the lower end of the second spring 405 are both fixedly connected to the upper end of the connection joint 402. In addition to electronic detection by the angle sensor and the inclination sensor 410, this embodiment can also perform mechanical detection. Specifically, horizontal deflection scales 403 are evenly marked along the circumference of the upper part of the outer peripheral wall of the connection joint 402, and two or four reference scales 407 are evenly marked along the circumference of the upper end of the joint sleeve 406. When the horizontal deflection of the front or rear end face of the sleeper is detected, the horizontal deflection of the sleeper is directly read according to the alignment position of the reference scale 407 and the horizontal deflection scale 403. In this embodiment, inclination scales 411 are marked at intervals along the vertical direction on the outer peripheral wall of the connection joint 402. When the inclination of the upper end face of the sleeper is detected, the vertical inclination angle of the sleeper is directly read according to the inclination scale 411 corresponding to the lowest position of the upper edge of the joint sleeve 406. In this embodiment, a plurality of connecting ears 408 are uniformly configured on the joint sleeve 406 along its circumference, wherein two opposite connecting ears 408 are detachably connected to two connecting arms 500 , respectively, and the remaining connecting ears 408 are detachably connected to the connecting seat 409 .

[0024] As a preferred embodiment of the present invention, Figure 9-14As shown, the connecting arm 500 includes an arm-shaped body 501, and a plate-shaped joint 502 is constructed at one end of the arm-shaped body 501. The plate-shaped joint 502 is detachably connected to the connecting ear 408 on the joint sleeve 406 in the skewness measuring mechanism 400. A third strip hole 503 is opened on the arm-shaped body 501, and the third strip hole 503 extends along the length direction of the arm-shaped body 501. The active top-pressing mechanism 600 of this embodiment includes a vertically arranged vertical driving member, which is an electric cylinder A. The electric cylinder A has a first electric cylinder body 601 and a first electric cylinder rod 602. A bowl-shaped first assembly sleeve 603 is constructed at the lower end of the first electric cylinder rod 602, and a first top-connecting ball 604 is rotatably assembled in the first assembly sleeve 603. In this embodiment, the first top-connecting ball 604 is used to press the upper end surface of the sleeper, so that it contacts the upper end surface of the sleeper in a point manner, thereby adapting to the uneven surface of the sleeper. In this embodiment, a first ball head 605 is constructed at the upper end of the first electric cylinder body 601, and a first bowl-shaped seat 607 is constructed at the lower end of the external threaded tube 606. The first ball head 605 is movably assembled in the first bowl-shaped seat 607, so that the connection between the first electric cylinder body 601 and the external threaded tube 606 is hinged. In order to ensure that the vertical drive member is deflected laterally along the sleeper when it is pressed against the upper end surface of the sleeper, and then measure the vertical inclination of the sleeper, and prevent the vertical drive member from deflecting in other directions and causing inaccurate detection; and when the active lateral pressure mechanism 700 presses against the front end surface or the rear end surface of the sleeper, ensure that the active lateral pressure mechanism 700 can be transmitted to the skewness measuring mechanism 400 through the active top pressure mechanism 600, and the horizontal deflection of the sleeper is reflected on the skewness measuring mechanism 400; the measures taken are to symmetrically construct two first arc-shaped limiting strips 613 on the outer peripheral surface of the first ball head 605, and the two first arc-shaped limiting strips 613 are arranged at intervals along the lateral direction of the track, and each first arc-shaped limiting strip 613 The outer peripheral wall of the first ball head 605 extends along a vertical arc; two first arc limiting grooves 614 are opened on the inner wall of the first bowl-shaped seat 607, and the two first arc limiting strips 613 are respectively assembled in the two first arc limiting grooves 614. In this way, through the assembly of the first arc limiting strips 613 and the first arc limiting grooves 614, the relative movement of the vertical drive member and the external threaded tube 606 is limited, that is, the vertical drive member can only tilt laterally along the track with the first ball head 605 as the hinge point, and after the active side pressure mechanism 700 transmits horizontal force to the vertical drive member, the first ball head 605 and the first bowl-shaped seat 607 move synchronously, so that the vertical drive member drives the connecting arm 500 to rotate a certain angle along the axis of the assembly column 401.In this embodiment, a third spring 609 is arranged in the tube cavity 608 of the external threaded tube 606, the lower end of the third spring 609 is fixedly connected to the upper end of the first ball head 605, the upper end of the third spring 609 is rotatably connected to the first adjusting bolt 612 through the first spring seat 610, the first adjusting bolt 612 is threadedly connected to the upper end cover 611 at the upper end of the external threaded tube 606, and the upper end of the external threaded tube 606 passes through the third strip hole 503, and a fastening nut is threadedly connected to the external threaded tube 606. The third spring 609 of this embodiment is used to elastically connect the first ball head 605 and the external threaded tube 606, so that when the vertical drive member is not subjected to a biasing force, the axis of the external threaded tube 606 coincides with the axis of the vertical drive member; when the vertical drive member is tilted, the third spring 609 undergoes corresponding elastic deformation, and when the vertical drive member releases the pressure on the upper end surface of the sleeper, the third spring 609 elastically returns to its original position, so that the vertical drive member returns to its original position. In this embodiment, by rotating the first adjusting bolt 612 , the first adjusting bolt 612 drives the first spring seat 610 to move vertically, thereby adjusting the preload force of the third spring 609 , thereby achieving the purpose of adjusting the elastic return performance of the third spring 609 .

[0025] As a preferred embodiment of the present invention, Fig.10 , 12As shown in FIGS. 13 and 15 , the active lateral pressure mechanism 700 includes a lateral driving member, which extends along the length direction of the track. The lateral driving member is an electric cylinder B, which has a second electric cylinder body 701 and a second electric cylinder rod 702. A bowl-shaped second assembly sleeve 703 is configured at the end of the second electric cylinder rod 702, and a second top ball 704 is rotatably assembled in the second assembly sleeve 703. In this embodiment, a second ball head 705 is configured at the end of the second electric cylinder body 701, and the second ball head 705 is movably assembled in a second bowl-shaped seat 706, which is configured at the lower part of the first electric cylinder rod 602. In order to ensure that the lateral driving member deflects along the lateral direction of the track with the second ball head 705 as the hinge point and prevent it from deflecting in other directions, the measures taken in this embodiment are as follows: two second arc-shaped limiting strips 712 are symmetrically constructed on the outer peripheral surface of the second ball head 705, and the two second arc-shaped limiting strips 712 are arranged at intervals along the lateral direction of the track, and each second arc-shaped limiting strip 712 extends in an arc shape in the horizontal direction along the outer peripheral wall of the second ball head 705, and two second arc-shaped limiting grooves 713 are provided in the second bowl-shaped seat 706, and the two second arc-shaped limiting strips 712 are respectively assembled in the two second arc-shaped limiting grooves 713. In this embodiment, an assembly cavity 707 is provided at the lower part of the first electric cylinder rod 602, and the assembly cavity 707 is connected to the second bowl-shaped seat 706. A fourth spring 708 is installed in the assembly cavity 707, and the fourth spring 708 extends along the length direction of the track. One end of the fourth spring 708 is fixedly connected to the end of the second ball head 705, and the other end of the fourth spring 708 is rotatably connected to the second adjusting bolt 711 through the second spring seat 709. The second adjusting bolt 711 is threadedly connected to the side end cover 710, and the side end cover 710 is detachably connected to the open end of the assembly cavity 707 (that is, the end port of the assembly cavity 707 away from the second bowl-shaped seat 706). The fourth spring 708 of this embodiment is used to elastically connect the first ball head 605 and the first electric cylinder rod 602, so that when the lateral drive member is not subjected to a biasing force, the first electric cylinder rod 602 and the lateral drive member are in a state of being perpendicular to the axis; when the lateral drive member is horizontally extended and presses against the front end face or the rear end face of the sleeper, the lateral drive member is tilted, and the fourth spring 708 undergoes corresponding elastic deformation. When the lateral drive member releases the pressure on the sleeper, the fourth spring 708 elastically returns to its original position, so that the lateral drive member returns to its original position. In this embodiment, by rotating the second adjusting bolt 711, the second adjusting bolt 711 drives the second spring seat 709 to move along the length direction of the track, thereby adjusting the preload force of the fourth spring 708, thereby achieving the purpose of adjusting the elastic return performance of the fourth spring 708.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A trolley for measuring the skewness of railway sleepers, characterized in that: It comprises a plurality of flip telescopic arms installed at intervals on an assembly seat, a wheeled running mechanism being installed at one end of each flip telescopic arm away from the assembly seat, a skewness measuring mechanism being installed at the middle of the upper end of the assembly seat, two connecting arms being symmetrically installed on the skewness measuring mechanism, each connecting arm extending from the skewness measuring mechanism along the length direction of the sleeper to one end of the sleeper, an active top pressing mechanism being installed on each connecting arm, an active side pressing mechanism being installed at the lower part of each active top pressing mechanism, and a hand push rod being installed on the assembly seat or the wheeled running mechanism.

2. A trolley for measuring the skewness of railway sleepers according to claim 1, characterized in that: The assembly seat includes a rectangular plate-shaped seat body, and strip fixing plates are respectively constructed at the four corners of the plate-shaped seat body, each of which extends along the length direction of the track, and a first strip hole is opened on each strip fixing plate, and each of the first strip holes extends along the length direction of the track. The number of the flip telescopic arms is four, and one end of each flip telescopic arm is detachably connected to the plate-shaped seat body through the corresponding first strip hole.

3. A trolley for measuring the skewness of railway sleepers according to claim 2, characterized in that: The flip telescopic arm includes a plug-in tube, one end of which is detachably connected to the plate-shaped base through a first strip hole, one end of a plug-in rod is inserted into the plug-in tube, the other end of the plug-in rod extends outward along the horizontal direction of the track, and the end of the plug-in rod away from the plug-in tube is detachably connected to the wheeled running mechanism.

4. A trolley for measuring the skewness of railway sleepers according to claim 3, characterized in that: A first articulated seat is constructed at the end of the plug-in tube away from the wheeled running mechanism, the first articulated seat is articulated with the second articulated seat via an articulated shaft, two limit holes are arranged on the first articulated seat in a horizontal direction, each of the limit holes passes through the first articulated seat and the second articulated seat, and the articulated shaft is located between the two limit holes, the distance between the articulated shaft and the two limit holes is equal, and a limit pin is inserted in each limit hole; a vertical connecting joint is constructed below the second articulated seat, a threaded joint is constructed at the lower end of the vertical connecting joint, and a blocking edge extending radially outward along the vertical connecting joint is constructed between the vertical connecting joint and the threaded joint, the lower end of the threaded joint passes through the first strip hole, a locking nut is threadedly connected to the threaded joint, and the locking nut is screwed to the lower end of the strip fixing plate.

5. The trolley for measuring the skewness of railway sleepers according to claim 3, characterized in that: A second strip hole is opened on the outer peripheral wall of the plug tube, and the second strip hole extends along the length direction of the plug tube. A plurality of connecting holes are opened on the surface of the plug rod corresponding to the second strip hole, and the connecting holes are arranged at intervals along the length direction of the plug rod.

6. The trolley for measuring the skewness of railway sleepers according to claim 1, characterized in that: The wheeled running mechanism includes a vertical rod or a vertical electric cylinder detachably connected to the flip telescopic arm, a connecting wheel seat is connected to the lower end of the vertical rod or the vertical electric cylinder, a connecting wheel axle is rotatably connected to the connecting wheel seat, the connecting wheel axle extends laterally along the track, a track wheel is coaxially mounted on the connecting wheel axle, and a running wheel coinciding with its axis is detachably connected to the track wheel.

7. The trolley for measuring the skewness of railway sleepers according to claim 1, characterized in that: The skewness measuring mechanism includes an assembly column whose lower end is detachably connected to an assembly seat, a connecting joint is constructed at the upper end of the assembly column, a joint sleeve is movably mounted outside the connecting joint, a connecting seat is detachably connected to the joint sleeve, an angle sensor and an inclination sensor are installed on the connecting seat, and an elastic connecting piece is installed between the connecting seat and the connecting joint.

8. The trolley for measuring the skewness of railway sleepers according to claim 7, characterized in that: The elastic connecting member includes a first spring and a second spring with opposite rotation directions, the second spring is coaxially arranged in the first spring, and the upper ends of the first spring and the second spring are fixedly connected to the lower end of the connecting seat, and the lower ends of the first spring and the second spring are fixedly connected to the upper end of the connecting joint.

9. The trolley for measuring the skewness of railway sleepers according to claim 1, characterized in that: The connecting arm comprises an arm-shaped body with a plate-shaped joint at one end, the plate-shaped joint is detachably connected to the skewness measuring mechanism, and a third strip-shaped hole extending along the length direction of the arm-shaped body is opened on the arm-shaped body; the active top-pressing mechanism comprises a vertically arranged vertical driving member, a first top-connecting ball is rotatably connected to the lower end of the vertical driving member, a first ball head is constructed at the upper end of the vertical driving member, the first ball head is movably assembled in the first bowl-shaped seat at the lower end of the externally threaded tube, and two first arc-shaped limiting strips are symmetrically constructed on the outer peripheral surface of the first ball head, and the two first arc-shaped limiting strips are symmetrically constructed along the horizontal direction of the track. The first arc limiting strips are arranged at intervals, and each first arc limiting strip extends along a vertical arc along the outer peripheral wall of the first ball head. Two first arc limiting grooves are opened in the first bowl-shaped seat. The two first arc limiting strips are respectively assembled in the two first arc limiting grooves. A third spring is arranged in the externally threaded tube. The lower end of the third spring is fixedly connected to the upper end of the first ball head. The upper end of the third spring is rotatably connected to the first adjusting bolt through the first spring seat. The first adjusting bolt is threadedly connected to the upper end cover of the upper end of the externally threaded tube, and the upper end of the externally threaded tube passes through the third strip-shaped hole, and a fastening nut is threadedly connected to the externally threaded tube.

10. A trolley for measuring the skewness of railway sleepers according to claim 1, characterized in that: The active lateral pressure mechanism includes a lateral driving member extending along the length direction of the track, the lateral driving member is rotatably connected to a second top-receiving ball at one end away from the active top-pressing mechanism, a second ball head is constructed at the other end of the lateral driving member, the second ball head is movably assembled in a second bowl-shaped seat, the second bowl-shaped seat is constructed on the active top-pressing mechanism, two second arc-shaped limiting strips are symmetrically constructed on the outer circumferential surface of the second ball head, the two second arc-shaped limiting strips are arranged at intervals along the lateral direction of the track, and each second arc-shaped limiting strip extends in an arc shape in the horizontal direction along the outer circumferential wall of the second ball head, two second arc-shaped limiting grooves are provided in the second bowl-shaped seat, and the two second arc-shaped limiting strips are respectively assembled in the two second arc-shaped limiting grooves; a fourth spring extending along the length direction of the track is installed in the assembly cavity of the active top-pressing mechanism, one end of the fourth spring is fixedly connected to the end of the second ball head, the other end of the fourth spring is rotatably connected to the second adjusting bolt through the second spring seat, the second adjusting bolt is threadedly connected to the side end cover, and the side end cover is detachably connected to the opening end of the assembly cavity.

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