Railway ballast track bed resistance rapid measuring vehicle

Abstract

The utility model discloses a railway ballast track bed resistance rapid measuring vehicle which comprises a vehicle frame arranged above a track, a front wheel set and a rear wheel set are installed on the vehicle frame in the length direction of the track at intervals, and the front wheel set and the rear wheel set are both rolled on two steel rails. Two fastener disassembling and assembling mechanisms are installed on the frame in the length direction of the rail at intervals, two rail lifting mechanisms are installed on the frame in the transverse direction of the rail at intervals, the two rail lifting mechanisms extend to the rail webs of the two steel rails respectively, and two hydraulic supporting mechanisms are installed on the frame and located between the two fastener disassembling and assembling mechanisms. A resistance measuring mechanism is installed on the frame and located between the two hydraulic supporting mechanisms. According to the utility model, the operation convenience can be effectively improved, the detection efficiency is greatly improved, and safety accidents are avoided. The device is suitable for the technical field of railway ballast track bed resistance detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of track detection equipment, and in particular relates to a railway ballasted track bed resistance rapid measurement vehicle. Background Art

[0002] With the rapid development of national economic construction, my country's railway transportation is becoming increasingly tense and is in an overloaded state. At present, while there is an urgent need to build and expand railway lines, it is also necessary to continuously strengthen the inspection and maintenance of existing railways to meet and ensure the needs of my country's economic development for railway transportation capacity and safety. Railway sleeper support stiffness and roadbed longitudinal and transverse resistance are important parameters for monitoring and identifying the status of railway tracks when building new railways and maintaining old lines. They play an extremely important role in scientifically evaluating the quality of the roadbed status and line safety. The GDY-3 Railway Roadbed Resistance and Support Stiffness Tester (hereinafter referred to as the Stiffness Tester) is an instrument used to measure the sleeper support stiffness and longitudinal and transverse resistance of railway tracks. Its purpose is to provide elasticity and roadbed longitudinal and transverse resistance parameters for roadbed status assessment. However, when using the existing stiffness meter, it is necessary to remove the connecting parts between the rail and the sleeper, and then use tools to lift the rail to a certain height. Next, the stiffness meter is used to push the sleeper horizontally or vertically, and indirectly act on the ballasted track bed through the sleeper to measure the longitudinal and transverse resistance parameters. However, the whole operation is extremely cumbersome, and the detection efficiency is low. There is also a certain probability of safety hazards during the operation. Utility Model Content

[0003] The utility model provides a railway ballasted track bed resistance rapid measurement vehicle, which is used to improve the convenience of operation, greatly enhance the detection efficiency, and avoid safety accidents.

[0004] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0005] A railway ballasted track bed resistance rapid measurement vehicle comprises a frame arranged above the track, a front wheel group and a rear wheel group are installed on the frame at intervals along the length direction of the track, the front wheel group and the rear wheel group both roll on two steel rails, two fastener disassembly and assembly mechanisms are installed on the frame at intervals along the length direction of the track, two rail lifting mechanisms are installed on the frame at intervals along the transverse direction of the track, the two rail lifting mechanisms respectively extend to the waists of the two steel rails, two hydraulic support mechanisms are installed on the frame and between the two fastener disassembly and assembly mechanisms, and a resistance measuring mechanism is installed on the frame and between the two hydraulic support mechanisms.

[0006] Furthermore, the fastener disassembly and assembly mechanism includes two connecting seats symmetrically installed on both sides of the frame, the two connecting seats are respectively arranged corresponding to the two rails, a vertical driving member is installed on each of the connecting seats, and an electric wrench is installed at the lower end of the vertical driving member.

[0007] Furthermore, the vertical drive member includes a vertical tube assembled on the connecting seat, the upper end of the vertical rod is movably inserted into the lower end of the vertical tube, a connecting spring is assembled in the vertical tube, the upper and lower ends of the connecting spring are respectively connected to the corresponding ends of the vertical tube and the vertical rod, the upper end of the electric wrench is connected to the lower end of the vertical rod, and an air pipe is installed at the upper end of the vertical tube.

[0008] Furthermore, a strip hole extending laterally along the track is opened on the connecting seat, the lower end of the vertical tube passes through the strip hole, and a limiting flange extending radially outward is constructed at the lower end of the vertical tube, and a fastening nut is connected to the external thread of the vertical tube. The fastening nut and the limiting flange are respectively located at the upper and lower ends of the connecting seat.

[0009] Furthermore, the hydraulic support mechanism includes a transverse beam installed on the frame, the two ends of the transverse beam respectively extend from the two ends of the sleeper, and vertical hydraulic cylinders are respectively installed at the two ends of the transverse beam, and the lower end of the cylinder rod of each vertical hydraulic cylinder is installed with a support seat.

[0010] Furthermore, the rail lifting mechanism includes an assembly seat arranged on the outside of the frame, and multiple vertical shafts are arranged on the assembly seat at intervals along the length direction of the track. Each of the vertical shafts is rotatably connected to the assembly seat, and a rail lifting wheel is coaxially installed on each vertical shaft, and the rail lifting wheel rolls laterally on the waist of the rail.

[0011] Furthermore, a transverse screw is threadedly connected to the assembly seat, one end of the transverse screw is rotatably connected to the side wall of the frame, and an operating handwheel is installed at the other end of the transverse screw. At least one transverse guide rod is fixed on the frame, and the end of the transverse guide rod away from the frame slides through the assembly seat.

[0012] Furthermore, the resistance measuring mechanism includes an adapter seat rotatably connected to the frame through a first assembly axis, four first limit holes are evenly opened on the adapter seat along the circumference of the first assembly axis, and two horizontal hydraulic cylinders are symmetrically installed on the adapter seat. The end of each horizontal hydraulic cylinder away from the adapter seat is connected to a vertical arm through a U-shaped seat, and a top pressure head is installed at the end of the vertical arm away from the U-shaped seat. The axis of the top pressure head is parallel to the axis of the horizontal hydraulic cylinder, and a pressure sensor is installed on the top pressure head.

[0013] Furthermore, the vertical arm is rotatably connected to the U-shaped seat via a second assembly axis, and two second limiting holes are provided on the vertical arm at intervals along its transverse direction, and the two limiting holes are symmetrically arranged on both sides of the second assembly axis.

[0014] Furthermore, the front wheel group and the rear wheel group have the same structure, the front wheel group includes two rail wheels respectively rolled on two steel rails, the two rail wheels are coaxially mounted on a transverse rod, and the transverse rod is mounted on the frame; a driving mechanism is mounted on each rail wheel of the front wheel group, the driving mechanism includes a driving motor mounted on the frame, a driving gear is coaxially mounted on the output shaft of the driving motor, and a driven gear is coaxially mounted on the rail wheel, and the driving gear and the driven gear are meshed with each other.

[0015] Due to the adoption of the above-mentioned structure, the present invention has achieved the following technical progress compared with the prior art: the fastener disassembly and assembly mechanism located at the front end of the vehicle frame is used to remove the nuts on the connecting fasteners connecting the rails and the sleepers, and to remove the connecting fasteners and the rubber pads; and as the measuring vehicle moves forward on the track, the connecting fasteners are removed one by one. After the measurement of the ballasted track bed in the area is completed, the fastener disassembly and assembly mechanism located at the rear end of the vehicle frame reinstalls the rubber pads and the connecting fasteners, and then assembles the nuts. Before measurement, since the connecting fasteners at this position have been removed, the hydraulic support mechanism is controlled to press against the ballasted track bed, so that the hydraulic support mechanism drives the vehicle frame to gradually rise, and the vehicle frame drives the two rail lifting mechanisms to rise and lift the two rails, so that the two rails are separated from the sleepers. Afterwards, the resistance measuring mechanism is controlled to sequentially press the sleeper longitudinally and transversely. The displacement of the sleeper during the press is generally 2-10 mm, and the resistance value at this displacement (i.e., the pressure applied by the resistance measuring mechanism) is obtained. Since the sleeper is directly connected to the ballasted trackbed, the measured resistance value also represents the longitudinal and transverse resistance value of the ballasted trackbed. After the measurement is completed, the hydraulic support mechanism is controlled to return to its original position, allowing the two rails to fall back onto the sleeper. Finally, the rails are connected to the sleeper. In summary, the present invention can effectively improve operational convenience, significantly increase detection efficiency, and avoid safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached figure:

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a structural front view of an embodiment of the utility model;

[0020] Figure 3 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0021] Figure 4 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0022] Figure 5 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model; Figure 4 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0023] Figure 6 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0024] Figure 7 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0025] Figure 8 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0026] Figure 9 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model;

[0027] Figure 10 It is the structure schematic view of the connection of the frame and the fastener dismounting mechanism of the embodiment of the utility model.

[0028] Marked components: 100-frame, 200-front wheel group, 201-track wheel, 202-transverse rod, 300-fastener dismounting mechanism, 301-connection seat, 302-strip hole, 303-vertical tube, 304-vertical rod, 305-limit flange, 306-fastening nut, 307-electric wrench, 400-hydraulic support mechanism, 401-transverse beam, 402-vertical hydraulic cylinder, 403-support seat, 500-raising rail mechanism, 501-assembly seat, 502-raising rail wheel, 503-vertical shaft, 504-transverse screw, 505-operation hand wheel, 506-transverse guide rod, 600-resistance measuring mechanism, 601-adapting seat, 602-first assembly shaft, 603-first limit hole, 604-horizontal hydraulic cylinder, 605-U-shaped seat, 606-vertical arm, 607-second assembly shaft, 608-second limit hole, 609-pressing head, 700-steel rail, 800-sleeper, 900-driving mechanism, 901-driving motor, 902-driving gear, 903-driven gear. DETAILED DESCRIPTION

[0029] The preferred embodiments of the utility model are described below in conjunction with the drawings. It should be understood that the preferred embodiments described here are only for illustrating and explaining the utility model, and are not intended to limit the utility model.

[0030] The utility model discloses a railway ballast bed resistance rapid measurement vehicle, such as Figure 1-10 As shown, it includes a frame 100, a front wheel assembly 200, a rear wheel assembly, a resistance measuring mechanism 600, two fastener disassembly and assembly mechanisms 300, two rail lifting mechanisms 500 and two hydraulic support mechanisms 400. Among them, the frame 100 is arranged above the track, and the front wheel assembly 200 and the rear wheel assembly are installed on the frame 100 at intervals along the length of the track. The front wheel assembly 200 and the rear wheel assembly are both rolled on two steel rails 700. The two fastener disassembly and assembly mechanisms 300 are installed on the frame 100 at intervals along the length of the track, and the two rail lifting mechanisms 500 are installed on the frame 100 at intervals along the transverse direction of the track. The two rail lifting mechanisms 500 respectively extend to the waist of the two steel rails 700. In the present utility model, the two hydraulic support mechanisms 400 are both installed on the frame 100, and the two hydraulic support mechanisms 400 are located between the two fastener disassembly and assembly mechanisms 300. The resistance measuring mechanism 600 is installed on the frame 100, and the resistance measuring mechanism 600 is located between the two hydraulic support mechanisms 400. The working principle and advantages of the present invention are as follows: the fastener disassembly and assembly mechanism 300 located at the front end of the vehicle frame 100 is used to remove the nuts on the connecting fasteners connecting the steel rails 700 and the sleepers 800, and to remove the connecting fasteners and the rubber pads; and as the measuring vehicle moves forward on the track, the connecting fasteners are removed one by one. After the measurement of the ballast track bed in the area is completed, the fastener disassembly and assembly mechanism 300 located at the rear end of the vehicle frame 100 reinstalls the rubber pads and the connecting fasteners, and then assembles the nuts. Before measurement, since the connecting fasteners at this position have been removed, the hydraulic support mechanism 400 is controlled to press against the ballast track bed, so that the hydraulic support mechanism 400 drives the vehicle frame 100 to gradually rise, and the vehicle frame 100 drives the two rail lifting mechanisms 500 to rise and lift the two steel rails 700, so that the two steel rails 700 are separated from the sleepers 800. Afterwards, the resistance measuring mechanism 600 is controlled to press the sleeper 800 longitudinally and transversely in sequence. Generally, the displacement of the sleeper 800 is 2-10 mm, and the resistance value under this displacement (i.e., the pressure of the resistance measuring mechanism 600) is obtained. Since the sleeper 800 is directly connected to the ballasted track bed, the measured resistance value is also the longitudinal and transverse resistance value of the ballasted track bed. After the measurement is completed, the hydraulic support mechanism 400 is controlled to return to its position, so that the two rails 700 fall back onto the sleeper 800. Finally, the rails 700 are connected to the sleeper 800. In summary, the utility model can effectively improve the convenience of operation, greatly improve the detection efficiency, and avoid safety accidents.

[0031] As a preferred embodiment of the present invention, Figure 3-5As shown, the fastener assembly and disassembly mechanism 300 includes two connecting blocks 301 symmetrically mounted on either side of the vehicle frame 100. These two connecting blocks 301 are respectively arranged to correspond to the two rails 700. A vertical drive member is mounted on each connecting block 301, and an electric wrench 307 is mounted at the lower end of the vertical drive member. In this embodiment, the vertical drive member moves downward, causing the lower end of the electric wrench 307 to connect with the nut on the connecting fastener. The electric wrench 307 is then controlled to remove the nut or tighten the nut to the connecting fastener. The vertical drive member of this embodiment includes a vertical tube 303 and a vertical rod 304, wherein the vertical tube 303 is assembled on the connecting seat 301, and the upper end of the vertical rod 304 is movably inserted into the vertical tube 303 from the lower end of the vertical tube 303. A connecting spring is assembled in the vertical tube 303, and the upper and lower ends of the connecting spring are respectively connected to the corresponding ends of the vertical tube 303 and the vertical rod 304. The upper end of the electric wrench 307 is connected to the lower end of the vertical rod 304, and an air pipe is installed at the upper end of the vertical tube 303. In this embodiment, the air pipe is used to inflate the inner cavity of the vertical tube 303 or discharge the gas in the vertical tube 303, so that the vertical rod 304 drives the electric wrench 307 to move downward, or the vertical rod 304 drives the electric wrench 307 to return to its original position under the action of the connecting spring. In order to adjust the lateral position of the electric wrench 307 on the connecting seat 301 so that it can be accurately aligned with the nut on the connecting fastener, this embodiment specifically provides a strip hole 302 on the connecting seat 301, which extends along the transverse direction of the track, and the lower end of the vertical tube 303 passes through the strip hole 302; a limiting flange 305 is constructed at the lower end of the vertical tube 303, and the limiting flange 305 extends radially outward along the vertical tube 303, and a fastening nut 306 is externally threadedly connected to the vertical tube 303, and the fastening nut 306 and the limiting flange 305 are respectively located at the upper and lower ends of the connecting seat 301, thereby fixing the position of the vertical tube 303 and the connecting seat 301.

[0032] As a preferred embodiment of the present invention, Figure 6 As shown, the hydraulic support mechanism 400 includes a transverse beam 401 mounted on the vehicle frame 100, with both ends of the transverse beam 401 extending out of both ends of the sleeper 800, and vertical hydraulic cylinders 402 mounted at both ends of the transverse beam 401. The lower end of the cylinder rod of each vertical hydraulic cylinder 402 is mounted with a support seat 403. In this embodiment, the cylinder rod of the vertical hydraulic cylinder 402 is controlled to extend downward, so that the support seat 403 presses against the ballasted track bed; when the support seat 403 and the ballasted track bed are relatively stationary, the cylinder body of the vertical hydraulic cylinder 402 drives the transverse beam 401 to move upward, so that the transverse beam 401 drives the vehicle frame 100 and the two rail lifting mechanisms 500 connected to the vehicle frame 100 to move upward, and the two rail lifting mechanisms 500 lift the two rails 700.

[0033] As a preferred embodiment of the present invention, Figure 7 、 8 As shown, the rail lifting mechanism 500 includes an assembly base 501, which is arranged on the outside of the vehicle frame 100. A plurality of vertical shafts 503 are arranged on the assembly base 501. These vertical shafts 503 are spaced apart along the length of the track. Each vertical shaft 503 is rotatably connected to the assembly base 501. A rail lifting wheel 502 is coaxially mounted on each vertical shaft 503. The rail lifting wheel 502 rolls laterally on the rail waist of the rail 700. When the measuring vehicle moves forward, each rail lifting wheel 502 rolls laterally on the side wall of the rail waist. When lifting the rail, the axial upper end face of the rail lifting wheel 502 is lifted against the lower end face of the rail top to perform the rail lifting operation. In order to facilitate the rail lifting mechanism 500 to detach from the rail waist or fully contact the rail waist, so as to facilitate the detachment of the vehicle frame 100 from the rail 700 or the restriction of the vehicle frame 100 on the two rails 700, the present embodiment adopts the following measures: a transverse screw 504 is threadedly connected to the assembly seat 501, one end of the transverse screw 504 is rotatably connected to the side wall of the vehicle frame 100, an operating handwheel 505 is installed at the other end of the transverse screw 504, and at least one transverse guide rod 506 is fixed to the vehicle frame 100, and the end of the transverse guide rod 506 away from the vehicle frame 100 slides through the assembly seat 501. In this embodiment, by restricting the operating handwheel 505, it drives the transverse screw 504 to rotate, so that the transverse screw 504 drives the assembly seat 501 to approach or move away from the rail 700, thereby achieving the purpose of detaching the rail lifting wheel 502 from or contacting the rail waist.

[0034] As a preferred embodiment of the present invention, Figure 9As shown, the resistance measuring mechanism 600 includes an adapter 601, which is rotatably connected to the frame 100 via a first assembly axis 602. Four first limiting holes 603 are evenly formed on the adapter 601 along the circumference of the first assembly axis 602. Four other first limiting holes 603 are also formed on the frame 100 at positions corresponding to the four first limiting holes 603. The angle between the adapter 601 and the frame 100 is adjusted by rotating the adapter 601 to switch between the two positions of 0° and 90°. After the adjustment is completed, at least two first limiting pins are inserted into the two aligned first limiting holes 603 to lock the position of the adapter 601 and the frame 100. In this embodiment, two horizontal hydraulic cylinders 604 are symmetrically installed on the adapter seat 601. The end of each horizontal hydraulic cylinder 604 away from the adapter seat 601 is connected to a vertical arm 606 through a U-shaped seat 605. A top pressure head 609 is installed at the end of the vertical arm 606 away from the U-shaped seat 605. The axis of the top pressure head 609 is parallel to the axis of the horizontal hydraulic cylinder 604, and a pressure sensor is installed on the top pressure head 609. When testing the lateral resistance of the ballasted track bed, the angle between the adapter 601 and the frame 100 is adjusted to 0°, the two horizontal hydraulic cylinders 604 are in a state of lateral extension along the track, and the two jacking heads 609 are aligned with the two ends of the corresponding sleepers 800. Then, one of the horizontal hydraulic cylinders 604 is controlled to move, so that the jacking head 609 presses one end of the sleeper 800, and reads the data detected by the corresponding pressure sensor. After the data is collected, the horizontal hydraulic cylinder 604 is controlled to return to its position; next, the other horizontal hydraulic cylinder 604 is controlled to drive the corresponding jacking head 609 to press the other end of the sleeper 800, and perform data detection and collection. Then, when testing the longitudinal resistance of the ballasted track bed, the angle between the adapter 601 and the frame 100 is adjusted to 90°, and the two horizontal hydraulic cylinders 604 are in a state of longitudinal extension along the track. The two horizontal hydraulic cylinders 604 are controlled to move, and the two pressing heads 609 press the two sleepers 800 laterally respectively, and then the longitudinal resistance of the corresponding parts of the ballasted track bed corresponding to the two sleepers 800 is synchronously tested. In this embodiment, the vertical arm 606 is rotatably connected to the U-shaped seat 605 via a second assembly axis 607. Two second limiting holes 608 are provided on the vertical arm 606 along its lateral intervals, and the two limiting holes are symmetrically arranged on both sides of the second assembly axis 607; another two second limiting holes 608 are provided on the U-shaped seat 605 at positions corresponding to the two second limiting holes 608, so that the vertical arm 606 can be rotatably switched between the two positions of 0° and 180°. Afterwards, two second limiting pins are used to be respectively inserted into the two aligned sets of second limiting holes 608, thereby achieving the purpose of locking the position of the U-shaped seat 605 and the vertical arm 606.When the angles of the adapter 601 and the vehicle frame 100 are adjusted, the angle of the vertical arm 606 is adjusted to avoid interference between the vertical arm 606 and the vehicle frame 100 .

[0035] As a preferred embodiment of the present invention, Figure 10 As shown, the front wheel assembly 200 and the rear wheel assembly have the same structure. The front wheel assembly 200 includes two track wheels 201 that roll on two rails 700, respectively. The two track wheels 201 are coaxially mounted on a transverse rod 202, which is mounted on the vehicle frame 100. In this embodiment, a drive mechanism 900 is installed on each track wheel 201 of the front wheel assembly 200. The drive mechanism 900 includes a drive motor 901 mounted on the vehicle frame 100, a driving gear 902 coaxially mounted on the output shaft of the drive motor 901, and a driven gear 903 coaxially mounted on the track wheel 201. The driving gear 902 and the driven gear 903 are meshed with each other. In this embodiment, the drive motor 901 is controlled to rotate, so that it drives the track wheels 201 through the driving gear 902 and the driven gear 903, thereby enabling the track wheels 201 to drive the vehicle frame 100 to travel on the track.

[0036] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A railway ballast bed resistance rapid measurement vehicle, characterized by: It includes a frame arranged above the track, with a front wheel group and a rear wheel group installed on the frame at intervals along the length direction of the track, and the front wheel group and the rear wheel group both roll on two steel rails, two fastener disassembly and assembly mechanisms are installed on the frame at intervals along the length direction of the track, and two rail lifting mechanisms are installed on the frame at intervals along the transverse direction of the track, and the two rail lifting mechanisms extend to the waists of the two steel rails respectively, two hydraulic support mechanisms are installed on the frame and between the two fastener disassembly and assembly mechanisms, and a resistance measuring mechanism is installed on the frame and between the two hydraulic support mechanisms.

2. The railway ballast bed resistance rapid measurement vehicle according to claim 1, characterized in that: The fastener disassembly and assembly mechanism includes two connecting seats symmetrically installed on both sides of the frame. The two connecting seats are respectively arranged corresponding to the two rails. A vertical driving member is installed on each connecting seat, and an electric wrench is installed at the lower end of the vertical driving member.

3. The railway ballast bed resistance rapid measurement vehicle according to claim 2, characterized in that: The vertical driving member includes a vertical tube assembled on a connecting seat, the upper end of the vertical rod is movably inserted into the lower end of the vertical tube, a connecting spring is assembled in the vertical tube, the upper and lower ends of the connecting spring are respectively connected to the corresponding ends of the vertical tube and the vertical rod, the upper end of the electric wrench is connected to the lower end of the vertical rod, and an air pipe is installed at the upper end of the vertical tube.

4. The railway ballast bed resistance rapid measurement vehicle according to claim 3, characterized in that: A strip hole extending laterally along the track is opened on the connecting seat, and the lower end of the vertical tube passes through the strip hole. A limiting flange extending radially outward is constructed at the lower end of the vertical tube, and a fastening nut is connected to the external thread of the vertical tube. The fastening nut and the limiting flange are respectively located at the upper and lower ends of the connecting seat.

5. The railway ballast bed resistance rapid measurement vehicle according to claim 1, characterized in that: The hydraulic support mechanism includes a transverse beam installed on the frame, the two ends of the transverse beam respectively extend from the two ends of the sleeper, and vertical hydraulic cylinders are respectively installed at the two ends of the transverse beam, and the lower end of the cylinder rod of each vertical hydraulic cylinder is installed with a support seat.

6. The railway ballast bed resistance rapid measurement vehicle according to claim 1, characterized in that: The rail lifting mechanism includes an assembly seat arranged on the outside of the frame, and multiple vertical shafts are arranged on the assembly seat at intervals along the length direction of the track. Each vertical shaft is rotatably connected to the assembly seat, and a rail lifting wheel is coaxially installed on each vertical shaft. The rail lifting wheel rolls laterally on the waist of the rail.

7. The railway ballast bed resistance rapid measurement vehicle according to claim 6, characterized in that: A transverse screw is threadedly connected to the assembly seat, one end of the transverse screw is rotatably connected to the side wall of the frame, and an operating handwheel is installed at the other end of the transverse screw. At least one transverse guide rod is fixed on the frame, and the end of the transverse guide rod away from the frame slides through the assembly seat.

8. The railway ballast bed resistance rapid measurement vehicle according to claim 1, characterized in that: The resistance measuring mechanism includes an adapter seat rotatably connected to the vehicle frame through a first assembly axis, four first limit holes are evenly opened on the adapter seat along the circumference of the first assembly axis, two horizontal hydraulic cylinders are symmetrically installed on the adapter seat, and one end of each horizontal hydraulic cylinder away from the adapter seat is connected to a vertical arm through a U-shaped seat, and a top pressure head is installed on the end of the vertical arm away from the U-shaped seat. The axis of the top pressure head is parallel to the axis of the horizontal hydraulic cylinder, and a pressure sensor is installed on the top pressure head.

9. The railway ballast bed resistance rapid measurement vehicle according to claim 8, characterized in that: The vertical arm is rotatably connected to the U-shaped seat via a second assembly shaft. Two second limiting holes are provided on the vertical arm at intervals along its transverse direction. The two limiting holes are symmetrically arranged on both sides of the second assembly shaft.

10. The railway ballast bed resistance rapid measurement vehicle according to claim 1, characterized in that: The front wheel group and the rear wheel group have the same structure. The front wheel group includes two rail wheels that roll on two steel rails respectively. The two rail wheels are coaxially mounted on a transverse rod, and the transverse rod is mounted on the frame. A driving mechanism is mounted on each rail wheel of the front wheel group, and the driving mechanism includes a driving motor mounted on the frame, a driving gear is coaxially mounted on the output shaft of the driving motor, and a driven gear is coaxially mounted on the rail wheel, and the driving gear and the driven gear are meshed with each other.

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