A multi-functional tractor and its running gear conversion method

Abstract

A multi-functional tractor and its travel conversion method are disclosed, relating to the field of tractors. The multi-functional tractor includes a tractor body and a tire-mounted traveling mechanism, a track-mounted traveling mechanism, and a wheel-rail traveling machine cross-line traversing mechanism connected to the tractor body. The track-mounted traveling mechanism includes two track assemblies that are liftable and retractable, connected to both sides of the bottom of the tractor body. The wheel-rail traveling machine cross-line traversing mechanism includes two wheel-rail traveling supports that are liftable and connected to the bottom of the tractor body. Each end of the wheel-rail traveling support is connected to a cross-line transfer frame, and each cross-line transfer frame is connected to a rotatable steel wheel. The two cross-line transfer frames of the wheel-rail traveling support are configured to rotate 90 degrees around a vertical axis, causing the axes of the two corresponding steel wheels to rotate 90 degrees. The multi-functional tractor and its travel conversion method provided in this application can switch between tire-mounted, wheel-rail, and track-mounted travel and perform railway cross-line transfer quickly and conveniently.

Description

Technical Field

[0001] This application relates to the field of tractor vehicles, and more specifically, to a multi-functional tractor vehicle and a method for switching between driving modes. Background Technology

[0002] As construction of the Ya'an-Linzhi section of the Sichuan-Tibet Railway progresses, new requirements are being placed on long rail construction equipment. The high altitude, low temperature, low pressure, and fragile ecological environment encountered during the construction of the Sichuan-Tibet Railway present challenges that construction personnel and equipment manufacturers must face. Existing methods of cross-line operations often involve areas inaccessible to cranes. When cross-line operations are necessary, either temporary switches must be laid or the tractor must be driven to a line with switches for marshalling, which consumes significant financial and time resources and is insufficient to meet the demands of railway construction. Summary of the Invention

[0003] The purpose of this application is to provide a multi-functional tractor and a method for switching between tire-based, wheel-rail-based, and track-based modes, which can switch between these modes quickly and conveniently for cross-railway transfers.

[0004] The embodiments of this application are implemented as follows:

[0005] This application provides a multi-functional tractor vehicle, which includes a tractor body and at least four tire-mounted running gears connected to the tractor body. The tractor body is also connected to a track running gear and a wheel-rail running machine cross-line lateral movement mechanism. The track running gear includes a track frame that is vertically connected to the bottom of the tractor body, two track lateral movement brackets, and track assemblies that are connected to the track lateral movement brackets one-to-one. The two track lateral movement brackets are respectively movably connected to both sides of the track frame along the width direction of the tractor body. The track frame is respectively connected to tracks for driving the two track lateral movement brackets to move along the width direction of the tractor body. The transverse movement cylinder; the wheel-rail traveling machine's cross-line transverse movement mechanism includes two wheel-rail traveling brackets that are vertically connected to the bottom of the traction vehicle body. Each end of the wheel-rail traveling bracket is connected to a cross-line transfer frame. Each cross-line transfer frame is connected to a rotatable steel wheel, and the cross-line transfer frame is connected to a steel wheel drive motor for driving the corresponding steel wheel to rotate. The two cross-line transfer frames of the wheel-rail traveling bracket are each configured to rotate 90 degrees around the vertical axis, so that the axes of the two corresponding steel wheels are collinear and parallel to the width direction of the traction vehicle body, rotating to the point where the two corresponding steel wheels are coplanar and their axes are parallel to the length direction of the traction vehicle body.

[0006] In some alternative embodiments, the tire running mechanism includes a tire running bracket movable to the side of the tractor body along the width direction of the tractor body, a slewing frame rotatably connected to the tire running bracket about a vertical axis, a tire rotatably connected to the slewing frame, and a tire drive motor for driving the tire to rotate. The tire running bracket is also connected to a steering cylinder for driving the slewing frame to rotate about a vertical axis.

[0007] In some alternative implementations, the tractor body is connected to tire telescopic sleeves that correspond one-to-one with the tire running brackets. One end of the tire running bracket is slidably inserted into the tire telescopic sleeve, and the tire telescopic sleeve is connected to a tire telescopic cylinder for driving the tire running bracket to move thereal.

[0008] In some alternative implementations, the tractor body is connected to multiple track lifting sleeves and corresponding track lifting struts that are slidably inserted into each track lifting sleeve. The track lifting sleeves are connected to track lifting cylinders for driving the corresponding track lifting struts to move along them. The bottom of each track lifting strut is connected to the track frame.

[0009] In some alternative implementations, the tractor body is connected to multiple wheel-rail lifting cylinders for driving the wheel-rail running gear to rise and fall.

[0010] In some alternative implementations, one end of the cross-line transfer frame is hinged to the end of the corresponding wheel-rail running bracket via a rotating pin. Each cross-line transfer frame has at least one locking bolt connected to the end of the rotating pin, which is configured to be axially movable to pass through and lock or unlock the cross-line transfer frame and the corresponding wheel-rail running bracket.

[0011] In some alternative implementations, each cross-line transfer frame is connected to a first rotating locking plate on its side, and the wheel-rail running bracket is connected to a second rotating locking plate corresponding to the first rotating locking plate on its side; when the cross-line transfer frame rotates about the rotating pin so that the axis of the corresponding steel wheel rotates from the width direction parallel to the width direction of the traction vehicle body to the length direction parallel to the length direction of the traction vehicle body, the locking bolt is configured to be axially movable to pass through and lock or unlock the first rotating locking plate and the second rotating locking plate.

[0012] In some alternative embodiments, an automatic rail clamping device is connected to the rear of the tractor body. The automatic rail clamping device includes a sliding guide beam extending along the width of the vehicle body and a lifting assembly for driving the sliding guide beam to rise and fall. The sliding guide beam is also connected to at least two rail clamping assemblies. Each rail clamping assembly includes a sleeve support slidably mounted on the sliding guide beam, a rail guide frame connected to the bottom of the sleeve support, a lateral adjustment cylinder for driving the sleeve support to move along the sliding guide beam, a rail clamp that can open or close to hold the rail, a clamp body adjustment cylinder for driving the rail clamp to open or close, and a clamp body lifting cylinder. The clamp body lifting cylinder is used to drive the rail clamp to rise and fall so that the top of the rail held by the rail clamp is received or disengaged from the rail guide frame.

[0013] In some optional embodiments, the rail clamping assembly is also connected to a rail locking device, which includes a locking bracket connected to a sleeve support. The bottom of the locking bracket is connected to a locking clamp that can be opened or clamped, and a locking cylinder for driving the locking clamp to open or clamp. The jaws of the locking clamp are respectively connected to a left and right drag wedge in the shape of an 1 / 2. When the locking clamp opens or clamps, it drives the left and right drag wedges to cooperate in releasing or clamping the rail housed in the rail guide frame. The rail locking device also includes a locking arm rotatably connected to the locking bracket in the middle, and a locking arm drive cylinder for driving the locking arm to rotate. The locking arm is connected to a wedge. When the locking arm rotates, it drives the wedge to insert or disengage between the top of the corresponding rail and the left and right drag wedges.

[0014] This application also provides a method for switching the travel of a multi-functional tractor, which is performed using the aforementioned multi-functional tractor, and includes the following steps:

[0015] When the tires are moving, the track frame that controls the wheel-rail running bracket connected to the tractor body and the track running mechanism drives the two track assemblies to rise, so that at least four tire running mechanisms support the ground and move.

[0016] During track movement, the wheel-rail traveling bracket connected to the traction vehicle body is raised, and the track frame of the track traveling mechanism is lowered to support the ground and move.

[0017] When the railway is moving, the wheel-rail running brackets connected to the traction car body are lowered, so that the steel wheels connected to the two wheel-rail running brackets roll against the two rails to move.

[0018] When railway crossings are required, temporary transverse rails are first laid between and on the sides of the tracks. The two cross-line transfer frames of the wheel-rail traveling bracket are controlled to rotate 90 degrees around the vertical axis, so that the two corresponding steel wheels of each wheel-rail traveling bracket rotate from having collinear axes and being parallel to the width direction of the traction vehicle body to having two corresponding steel wheels in the same plane and their axes being parallel to the length direction of the traction vehicle body. The wheel-rail traveling bracket connected to the traction vehicle body is then controlled to descend onto the temporary transverse rails laid by the rolling pressure of the two corresponding steel wheels for movement.

[0019] The beneficial effects of this application are as follows: The multi-functional tractor provided by this application includes a tractor body and at least four tire-mounted running gears connected to the tractor body. The tractor body is also connected to a track running gear and a wheel-rail running machine cross-line lateral movement mechanism. The track running gear includes a track frame that is vertically connected to the bottom of the tractor body, two track lateral movement supports, and track assemblies that are connected one-to-one with the track lateral movement supports. The two track lateral movement supports are respectively movably connected to both sides of the track frame along the width direction of the tractor body. The track frame is respectively connected to a mechanism for driving the two track lateral movement supports. The system includes a track-mounted lateral movement cylinder that moves along the width of the tractor body; the wheel-rail traveling tractor's cross-line lateral movement mechanism comprises two wheel-rail traveling supports that are vertically connected to the bottom of the tractor body. Each end of the wheel-rail traveling support is connected to a cross-line transfer frame, and each cross-line transfer frame is connected to a rotatable steel wheel. The two cross-line transfer frames of the wheel-rail traveling support are each configured to rotate 90 degrees around a vertical axis, so that the axes of the two corresponding steel wheels are collinear and parallel to the width direction of the tractor body, rotating until the two corresponding steel wheels are coplanar and their axes are parallel to the length direction of the tractor body. The multi-functional tractor provided in this application can switch between tire-based, rail-based, and track-based travel, and can quickly and conveniently perform cross-line railway transfer operations without the need for temporary turnouts or driving the tractor to a line with turnouts for marshalling, saving operating time and reducing operating costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A first-view structural schematic diagram of the multi-functional tractor provided in the embodiments of this application;

[0022] Figure 2 This is a second-view structural schematic diagram of the multi-functional tractor provided in an embodiment of this application;

[0023] Figure 3 A first-view structural schematic diagram of the tire running gear in a multi-functional tractor provided in an embodiment of this application;

[0024] Figure 4 A second-view structural schematic diagram of the tire running gear in a multi-functional tractor provided in an embodiment of this application;

[0025] Figure 5 A first-view structural schematic diagram of the tracked traveling mechanism in a multi-functional tractor provided in an embodiment of this application;

[0026] Figure 6 A partial structural schematic diagram of the tracked traveling mechanism in a multi-functional tractor provided in an embodiment of this application, from a second perspective;

[0027] Figure 7 A partial structural schematic diagram from a first perspective of the cross-line lateral movement mechanism of the wheel-rail traveling machine in the multi-functional tractor provided in the embodiments of this application;

[0028] Figure 8 A partial structural schematic diagram from a second perspective of the cross-line lateral movement mechanism of the wheel-rail traveling machine in the multi-functional tractor provided in the embodiments of this application;

[0029] Figure 9 A partial structural schematic diagram from a first-view perspective of a multi-functional tractor vehicle switching to a tire-trailing state, as provided in an embodiment of this application.

[0030] Figure 10 A partial structural schematic diagram from a second perspective of the multi-functional tractor vehicle switching to a tire-trailing state, provided in an embodiment of this application;

[0031] Figure 11 A partial structural schematic diagram from a first perspective of the multi-functional tractor switching to tracked out-of-body state provided in an embodiment of this application;

[0032] Figure 12 A partial structural schematic diagram from a second perspective of the multi-functional tractor switching to tracked out-of-body state provided in an embodiment of this application;

[0033] Figure 13 A partial structural schematic diagram from a first-view perspective of the multi-functional tractor switching to wheel-rail running mode provided in an embodiment of this application;

[0034] Figure 14 A partial structural schematic diagram from a second perspective of the multi-functional tractor switching to wheel-rail running mode provided in an embodiment of this application;

[0035] Figure 15 A first-view structural schematic diagram of the automatic rail clamping device in a multi-functional tractor provided in an embodiment of this application;

[0036] Figure 16 A second-view structural schematic diagram of the automatic rail clamping device in a multi-functional tractor provided in an embodiment of this application;

[0037] Figure 17 This is a schematic diagram of the rail clamping assembly of the automatic rail clamping device in the multi-functional tractor provided in the embodiments of this application;

[0038] Figure 18A schematic diagram of the lifting assembly of the automatic rail clamping device in the multi-functional tractor provided in this application embodiment;

[0039] Figure 19 A schematic diagram showing the structure of the rail locking device in the multi-functional tractor provided in this application embodiment, where the wedge is not inserted between the top of the rail and the left and right towing wedge blocks;

[0040] Figure 20 A schematic diagram of the structure of the rail locking device in the multi-functional tractor provided in this application embodiment, showing the wedge inserted between the top of the rail and the left and right towing wedge blocks;

[0041] Figure 21 A schematic diagram of the locking clamp, left drag wedge, and right drag wedge of the automatic rail clamping device in the multi-functional tractor provided in this application embodiment.

[0042] In the diagram: 100, Tractor body; 200, Tire running gear; 210, Tire running bracket; 220, Slewing frame; 230, Tire; 240, Tire drive motor; 250, Steering cylinder; 260, Tire telescopic sleeve; 270, Tire telescopic cylinder; 280, Slewing support; 300, Track running gear; 310, Track frame; 320, Track lateral movement bracket; 330, Track assembly; 340, Track. 350. Lateral movement cylinder; 360. Track lifting sleeve; 370. Track lifting support rod; 400. Track lifting cylinder; 410. Wheel-rail traveling machine cross-line lateral movement mechanism; 420. Wheel-rail traveling bracket; 430. Cross-line transfer frame; 440. Wheel-rail lifting cylinder; 450. Rotating pin; 460. Locking bolt; 461. First rotating locking plate; 470. First locking hole; 471. Second rotating locking plate; 472. Second locking... Hole; 480, Steel wheel; 490, Steel wheel drive motor; 500, Sliding guide beam; 510, Fixed frame; 520, Connecting seat; 530, Movable frame; 540, Upper connecting rod; 550, Lower connecting rod; 560, Sliding guide beam lifting cylinder; 600, Rail clamping assembly; 610, Sleeve support; 611, Support frame; 620, Rail guide frame; 621, Opening; 630, Lateral adjustment cylinder; 640, Rail clamp; 650, Clamp 660. Body adjusting cylinder; 670. Clamp body lifting cylinder; 680. Force transmission sleeve; 690. Two-way cylinder seat; 700. Two-way adjusting cylinder; 710. Rail locking device; 720. Locking clamp; 730. Locking cylinder; 740. Left drag wedge; 750. Right drag wedge; 761. Locking arm; 770. Pin shaft; 780. Locking arm drive cylinder; 800. Wedge; 800. Rail. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The features and performance of the multi-functional tractor and the travel conversion method of this application will be further described in detail below with reference to embodiments.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, this application embodiment provides a multi-functional tractor vehicle, which includes a tractor body 100 and four tire traveling mechanisms 200, a track traveling mechanism 300 and a wheel-rail traveling machine cross-line lateral movement mechanism 400 connected to the tractor body 100.

[0052] The four tire running mechanisms 200 are respectively located on both ends of the tractor body 100. Each tire running mechanism 200 includes a tire telescopic sleeve 260 connected to one side of the tractor body 100, a tire running bracket 210 with one end telescopically inserted into the tire telescopic sleeve 260, a slewing support 280 connected to the other end of the tire running bracket 210, a slewing frame 220 rotatably connected to the slewing support 280 about a vertical axis, and a tire 230 rotatably connected to the slewing frame 220. The tire drive motor 240 is used to drive the tire 230 to rotate. The tire travel bracket 210 is also connected to a steering cylinder 250 for driving the slewing frame 220 to rotate around a vertical axis. The two ends of the steering cylinder 250 are respectively hinged to the slewing support 280 and the slewing frame 220. The tire telescopic sleeve 260 is connected to a tire telescopic cylinder 270 for driving the tire travel bracket 210 to move along it. The two ends of the tire telescopic cylinder 270 are respectively hinged to the tire telescopic sleeve 260 and the tire travel bracket 210.

[0053] The track traveling mechanism 300 includes four track lifting sleeves 350 connected to the tractor body 100, four track lifting struts 360 slidably inserted into the four track lifting sleeves 350, track frames 310 connected to the bottom of each track lifting strut 360, two track lateral support brackets 320, and track assemblies 330 connected to the track lateral support brackets 320 respectively. The two track lateral support brackets 320 are movably inserted into both sides of the track frame 310 along the width direction of the tractor body 100. The track frame 310 is connected to two track lateral movement supports 320 for moving along the width direction of the tractor body 100. The two ends of each track lateral movement cylinder 340 are hinged to the track frame 310 and the corresponding track lateral movement support 320, respectively. The track lifting sleeve 350 is connected to a track lifting cylinder 370 for moving the corresponding track lifting support rod 360 along it. The two ends of the track lifting cylinder 370 are hinged to the track lifting sleeve 350 and the corresponding track lifting support rod 360, respectively.

[0054] The wheel-rail traveling mechanism 400 includes two wheel-rail traveling supports 410 that are liftably connected to the bottom of the traction vehicle body 100. The traction vehicle body 100 and each wheel-rail traveling support 410 are connected via two wheel-rail lifting cylinders 430. Each wheel-rail traveling support 410 has a crossing transfer frame 420 connected to both ends. Each crossing transfer frame 420 is connected to a rotatable steel wheel 480, and each crossing transfer frame 420 is connected to a mechanism for driving the corresponding steel wheel 480 to rotate. A rotating steel wheel drive motor 490; one end of the cross-line transfer frame 420 is hinged to the end of the corresponding wheel-rail traveling bracket 410 via a vertically arranged rotating pin 440. Each cross-line transfer frame 420 has two vertically arranged locking bolts 450 connected to one end of the rotating pin 440. When the axis of the steel wheel 480 connected to each cross-line transfer frame 420 is parallel to the width direction of the traction vehicle body 100, the locking bolts 450 can move axially, passing through and connecting the cross-line transfer frame 420 and the corresponding wheel-rail traveling bracket 410. The wheel-rail traveling bracket 410 should be locked or unlocked; each cross-line transfer bracket 420 has a first rotating locking plate 460 connected to one side, with two first locking holes 461 on the first rotating locking plate 460; the wheel-rail traveling bracket 410 has a second rotating locking plate 470 corresponding to the first rotating locking plate 460 on one side, with two second locking holes 471 corresponding to the first locking holes 461 on each second rotating locking plate 470; the cross-line transfer bracket 420 rotates around the pivot pin. When the axis of the corresponding steel wheel 480 is rotated from the width direction parallel to the width direction of the tractor body 100 to the length direction parallel to the width direction of the tractor body 100, the first locking hole 461 on the first rotating locking plate 460 is aligned with the second locking hole 471 on the corresponding second rotating locking plate 470. The locking bolt 450 can move axially and pass through the corresponding first locking hole 461 and second locking hole 471 in sequence, locking or unlocking the first rotating locking plate 460 and the second rotating locking plate 470.

[0055] like Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 20 and Figure 21 As shown, the rear of the tractor body 100 is connected to a sliding guide beam 500 extending along its width direction via a lifting assembly. The sliding guide beam 500 is connected to four rail clamping assemblies 600. The lifting assembly includes a fixed frame 510, a connecting seat 520 connected to the fixed frame 510, a movable frame 530 connected to the sliding guide beam 500, two upper connecting rods 540, two lower connecting rods 550, and two sliding guide beam lifting cylinders 560 corresponding to the lower connecting rods 550. The two ends of the upper connecting rods 540 and the lower connecting rods 550 are hinged to the fixed frame 510 and the movable frame 530, respectively. The two ends of each sliding guide beam lifting cylinder 560 are hinged to the connecting seat 520 and the corresponding lower connecting rod 550, respectively.

[0056] Each rail clamping assembly 600 includes a sleeve support 610 slidably sleeved on a guide beam 500, a support frame 611 connected to the top of the sleeve support 610, a rail guide frame 620 connected to the bottom of the sleeve support 610, a rail clamp 640 that can open or close to hold a rail 800, a clamp body adjusting cylinder 650 and a clamp body lifting cylinder 660 for driving the rail clamp 640 to open or close, the clamp body lifting cylinder 660 being connected to the support frame 611, an opening 621 at the bottom of the rail guide frame 620, and the clamp body lifting cylinder 660 driving the rail clamp 640 to rise or fall so that the top of the rail 800 held by the rail clamp 640 is received or disengaged. The rail guide frame 620 has an opening 621; a bidirectional hydraulic cylinder seat 680 is connected to the middle of the sliding guide beam 500, and a bidirectional adjusting hydraulic cylinder 690 extending along the length of the sliding guide beam 500 is connected to the bidirectional adjusting hydraulic cylinder 690. The two cylinder rods of the bidirectional adjusting hydraulic cylinder 690 are respectively hinged to the sleeve supports 610 of the two rail clamping assemblies 600 located in the middle of the sliding guide beam 500. The sleeve supports 610 of the two rail clamping assemblies 600 located in the middle of the sliding guide beam 500 are respectively connected to a transverse adjusting hydraulic cylinder 630, and the cylinder rods of the two transverse adjusting hydraulic cylinders 630 are respectively hinged to the sleeve supports 610 of the two rail clamping assemblies 600 located at both ends of the sliding guide beam 500.

[0057] Each rail clamping assembly 600 is connected to a rail locking device 700. The rail locking device 700 includes a locking bracket 710 connected to the sleeve support 610. The bottom of the locking bracket 710 is connected to a locking clamp 720 that can open or clamp, and a locking cylinder 730 for driving the locking clamp 720 to open or clamp. The jaws of the locking clamp 720 are respectively connected to a left drag wedge 740 and a right drag wedge 750. The inclined wedges 750 are symmetrically arranged. When the locking clamp 720 opens or clamps, it drives the left and right inclined wedges 740 and 750 to release or clamp the rail 800 housed in the rail guide frame 620. The left and right inclined wedges 740 and 750 are respectively connected to L-shaped force transmission sleeves 670. When the locking clamp 720 clamps, it drives the two force transmission sleeves 670 to clamp the corresponding rail 800 through the left and right inclined wedges 740 and 750. The rail locking device 700 also includes a locking arm 760 hinged to the locking bracket 710 in the middle by a pin 761 and a locking arm drive cylinder 770 for driving one end of the locking arm 760 to rotate. The other end of the locking arm 760 is hinged to a wedge 780. When the locking arm 760 rotates, it drives the wedge 780 to insert or disengage between the top of the corresponding rail 800 and the left drag wedge stop 740 and the right drag wedge stop 750.

[0058] The multi-functional tractor provided in this application embodiment can switch between tire-based, rail-based, and track-based modes, and can quickly and conveniently perform cross-line transfer operations of the entire machine without the need to lay temporary switches or drive the tractor to a line with switches for marshalling, thus saving operating time and reducing operating costs.

[0059] The method for switching the travel of a multi-functional tractor provided in this application includes the following steps:

[0060] like Figure 9 and Figure 10 As shown, when tire movement is required, the system switches to tire-traveling mode. First, the cylinder rods of the tire extension cylinders 270 in the four tire traveling mechanisms 200 are extended, causing the four tire traveling supports 210 to extend along the width of the tractor body 100. Then, the cylinder rods of the steering cylinders 250 in the two tire traveling mechanisms 200 located behind the tractor body 100 are extended, driving the corresponding slewing frames 220 to rotate 180 degrees around the vertical axis. This causes the tires 230 connected to the slewing frames 220 in the two tire traveling mechanisms 200 behind the tractor body 100 to rotate to the two tires located inside the track and in front of the tractor body 100. The tires 230 connected to the slewing frame 220 in the traveling mechanism 200 remain inside the track. The cylinder rods of each track lifting cylinder 370 are controlled to retract, driving the track lifting support rod 360 to rise along the corresponding track lifting sleeve 350, causing the track frame 310 of the track traveling mechanism 300 to drive the two track assemblies 330 to rise. At the same time, the wheel-rail lifting cylinders 430 are controlled to retract, driving the two wheel-rail traveling supports 410 to rise, so that the tires 230 in the four tire traveling mechanisms 200 connected to the tractor body 100 support the ground. The tire drive motors 240 are controlled to drive the corresponding tires 230 to rotate, driving the tractor body 100 to move, thereby realizing tire movement.

[0061] like Figure 11 and Figure 12As shown, when track movement is required, the system switches to track-out mode. First, the cylinder rods of the two track lateral movement cylinders 340 in the track traveling mechanism 300 are extended, causing the two track lateral movement supports 320 to extend along the width of the tractor body 100 to both sides. Then, the cylinder rods of each track lifting cylinder 370 are extended, causing the track lifting support rods 360 to descend along the corresponding track lifting sleeves 350. This causes the track frame 310 of the track traveling mechanism 300 to lower the two track assemblies 330 to press against the ground, allowing the four tire traveling mechanisms 200 to... The tire 230 is suspended in the air. Then, the cylinder rods of the tire telescopic cylinders 270 in the four tire traveling mechanisms 200 are controlled to retract, so that the four tire traveling brackets 210 move and retract along the width direction of the tractor body 100 respectively. Then, the cylinder rods of the steering cylinders 250 in the two tire traveling mechanisms 200 located behind the tractor body 100 are controlled to extend and drive the corresponding slewing frame 220 to rotate 180 degrees in the opposite direction around the vertical axis to reset. The track assembly 330 connected to the two track lateral support brackets 320 can then be used to drive the tractor body 100 to move, thereby realizing track movement.

[0062] like Figure 13 and Figure 14 As shown, when railway movement is required, the system switches to railway running mode. At this time, the cylinder rod of the wheel-rail lifting cylinder 430 extends, causing the two wheel-rail running supports 410 connected to the bottom of the traction vehicle body 100 to descend until the steel wheels 480 connected to the cross-line transfer frame 420 at both ends of each wheel-rail running support 410 roll and press against the two rails respectively. The cylinder rod of each track lifting cylinder 370 retracts, causing the track lifting support rod 360 to retract and rise along the corresponding track lifting sleeve 350, causing the track frame 310 of the track traveling mechanism 300 to drive the two track assemblies 330 to rise and stop pressing against the ground. The cylinder rod of the two track lateral movement cylinders 340 in the track traveling mechanism 300 retracts, causing the two track lateral movement supports 320 to move and retract along the width direction of the traction vehicle body 100 respectively. Then, the steel wheel drive motor 490 drives the steel wheel 480 to rotate and move, thereby realizing the movement of the rails.

[0063] When further railway crossing is required after railway movement, two temporary transverse rails are first laid between the two tracks and on one side of the two tracks. Then, the cylinder rods of the two track transverse cylinders 340 in the track traveling mechanism 300 are extended, causing the two track transverse supports 320 to extend along the width direction of the traction vehicle body 100 to both sides of the traction vehicle body 100. Subsequently, the cylinder rods of each track lifting cylinder 370 are extended, driving the track lifting support rod 360 to descend along the corresponding track lifting sleeve 350, causing the track frame 310 of the track traveling mechanism 300 to drive the two track assemblies 330 to descend and press against the ground. The steel wheels 480 connected to the two wheel-rail traveling supports 410 are suspended in the air. At this time, the two locking bolts 450 connected to each cross-line transfer frame 420 are rotated to disengage the corresponding two locking bolts 450 and stop locking the cross-line transfer frame 420 and the corresponding wheel-rail traveling support 410. The cross-line transfer frame 420 is pushed to rotate 90 degrees relative to the corresponding wheel-rail traveling support 410 around the rotating pin 440, so that the first rotating locking plate 460 connected to the side of the cross-line transfer frame 420 rotates to below the corresponding second rotating locking plate 470 connected to the side of the wheel-rail traveling support 410, and the first rotating locking plate... The two first locking holes 461 on the first rotating locking plate 460 are aligned with the two corresponding second locking holes 471 on the second rotating locking plate 470. Two locking bolts 450 are then inserted sequentially into the first locking holes 461 and the second locking holes 471 on the first rotating locking plate 460 and the second rotating locking plate 470, respectively, and tightened to secure them. This rotates the two corresponding steel wheels 480 of each wheel-rail traveling bracket 410 from a direction where their axes are collinear and parallel to the width direction of the traction vehicle body 100 to a direction where the two corresponding steel wheels 480 are coplanar and their axes are parallel to the length direction of the traction vehicle body 100. In other words, each wheel-rail traveling bracket 410... The two corresponding steel wheels 480 rotate from above the original two tracks to above a temporary transverse rail. At this time, the cylinder rods of each track lifting cylinder 370 retract, driving the track lifting support rod 360 to rise along the corresponding track lifting sleeve 350, causing the track frame 310 of the track traveling mechanism 300 to drive the two track assemblies 330 to rise and stop on the ground. This causes the four steel wheels 480 connected to the two wheel-rail traveling supports 410 to descend and roll against the two temporary transverse rails. The steel wheel drive motor 490 drives the steel wheels 480 to rotate and move, thereby realizing the railway cross-line movement.

[0064] When using the automatic rail clamping device provided in this embodiment, the rail 800 is first pushed to below the sliding guide beam 500 by a pusher vehicle. The lifting assembly is then controlled to drive the sliding guide beam 500 to descend to a preset height. During operation, the lifting assembly controls the extension and retraction of the cylinder rods of the two sliding guide beam lifting cylinders 560 to drive the two lower connecting rods 550 to rotate, thereby driving the movable frame 530, which is hinged at one end of the two lower connecting rods 550, and the sliding guide beam 500 connected to the movable frame 530, to rise and fall. Since the fixed frame 510, the two upper connecting rods 540, the two lower connecting rods 550, and the movable frame 530 are connected to form a four-bar linkage, the extension and retraction of the cylinder rods of the sliding guide beam lifting cylinders 560 to drive the two lower connecting rods 550 to rotate can drive the movable frame. The guide beam 500 and guide rail 530 are stably raised and lowered to perform rail clamping operations. When the guide beam 500 moves above the rail 800, the cylinder rod of the bidirectional adjusting cylinder 690 is controlled to extend and retract, driving the sleeve supports 610 of the two rail clamping assemblies 600 in the middle of the guide beam 500 to move along the guide beam 500. Furthermore, the cylinder rods of the lateral adjusting cylinders 630, connected to the sleeve supports 610 of the two rail clamping assemblies 600 in the middle of the guide beam 500, are controlled to extend and retract, controlling the sleeve supports 610 of the two rail clamping assemblies 600 located at both ends of the guide beam 500, connected to the lateral adjusting cylinders 630, to move along the guide beam 500 until the opening 6 of the rail guide frame 620 connected to the bottom of the sleeve supports 610 of the rail clamping assembly 600 is reached. 21. Align the clamping assembly 600 with the lower rail 800, then control the clamp lifting cylinder 660 of the rail clamping assembly 600 to extend the cylinder rod, driving the open rail clamp 640 to descend to the rail 800. Simultaneously, control the clamp adjusting cylinder 650 to retract the cylinder rod, causing the rail clamp 640 to clamp the top of the rail 800. Subsequently, the clamp lifting cylinder 660 of the rail clamping assembly 600 retracts the cylinder rod, driving the clamped rail clamp 640 to rise the rail 800 into the opening 621 at the bottom of the rail guide frame 620. At this time, one end of the rail 800, also located within the opening 621 at the bottom of the rail guide frame 620, also rises to between the left drag wedge 740 and the right drag wedge 750 in the rail locking device 700 of the rail clamping assembly 600. The cylinder rod of the locking cylinder 730 retracts, driving the locking clamp 720 to move the left and right drag wedges 740 and 750 closer together to clamp the rail 800. At the same time, the locking clamp 720 drives the two force transmission sleeves 670 through the left and right drag wedges 740 and 750 to clamp the corresponding rail 800 tightly. Finally, the cylinder rod of the locking arm drive cylinder 770 extends, driving the locking arm 760 to rotate around the pin 761. This causes the wedge 780, which is hinged at the other end of the locking arm 760, to rotate and insert into the top of the rail 800 and between the left and right drag wedges 740 and 750 with the cooperation of the operator, thus firmly fixing the rail 800 for transport.

[0065] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A multi-functional tractor unit, comprising a tractor body and at least four tire-mounted running gears connected to the tractor body, characterized in that, The tractor body is also connected to a track traveling mechanism and a wheel-rail traveling machine cross-line lateral movement mechanism. The track traveling mechanism includes a track frame that is vertically and flexibly connected to the bottom of the tractor body, two track lateral movement supports, and track assemblies that are connected to the track lateral movement supports one-to-one. The two track lateral movement supports are respectively movably connected to both sides of the track frame along the width direction of the tractor body. The track frame is respectively connected to track lateral movement cylinders for driving the two track lateral movement supports to move along the width direction of the tractor body. The wheel-rail traveling machine cross-line lateral movement mechanism includes two track frames that are vertically and flexibly connected to the bottom of the tractor body, ... A wheel-rail traveling bracket is vertically connected to the bottom of the traction vehicle body. Each end of the wheel-rail traveling bracket is connected to a cross-line transfer frame. Each cross-line transfer frame is connected to a rotatable steel wheel. The cross-line transfer frame is connected to a steel wheel drive motor for driving the corresponding steel wheel to rotate. The two cross-line transfer frames of the wheel-rail traveling bracket are each configured to rotate 90 degrees around a vertical axis, so that the axes of the two corresponding steel wheels are collinear and parallel to the width direction of the traction vehicle body, and rotate to the point where the two corresponding steel wheels are coplanar and their axes are parallel to the length direction of the traction vehicle body.

2. The multi-functional tractor unit according to claim 1, characterized in that, The tire running mechanism includes a tire running bracket movable along the width direction of the tractor body and connected to the side of the tractor body, a slewing frame rotatably connected to the tire running bracket about a vertical axis, a tire rotatably connected to the slewing frame, and a tire drive motor for driving the tire to rotate. The tire running bracket is also connected to a steering cylinder for driving the slewing frame to rotate about a vertical axis.

3. The multi-functional tractor unit according to claim 2, characterized in that, The tractor body is connected to a tire telescopic sleeve that corresponds one-to-one with the tire running bracket. One end of the tire running bracket is slidably inserted into the tire telescopic sleeve. The tire telescopic sleeve is connected to a tire telescopic cylinder for driving the tire running bracket to move along it.

4. The multi-functional tractor unit according to claim 1, characterized in that, The tractor body is connected to multiple track lifting sleeves and corresponding track lifting rods that are slidably inserted into each track lifting sleeve. Each track lifting sleeve is connected to a track lifting cylinder for driving the corresponding track lifting rod to move along it. The bottom of each track lifting rod is connected to the track frame.

5. The multi-functional tractor unit according to claim 1, characterized in that, The tractor body is connected to multiple wheel-rail lifting cylinders for driving the wheel-rail running bracket to rise and fall.

6. The multi-functional tractor unit according to claim 1, characterized in that, One end of the cross-line transfer frame is hinged to the end of the corresponding wheel-rail running bracket via a rotating pin. Each cross-line transfer frame has at least one locking bolt connected to the end of the rotating pin. The locking bolt is configured to move axially to pass through and lock or unlock the cross-line transfer frame and the corresponding wheel-rail running bracket.

7. The multi-functional tractor according to claim 6, characterized in that, Each of the cross-line transfer frames is connected to a first rotating locking plate on its side, and the wheel-rail running bracket is connected to a second rotating locking plate corresponding to the first rotating locking plate on its side. When the cross-line transfer frame rotates about the rotating pin so that the axis corresponding to the steel wheel rotates from the width direction parallel to the width direction of the traction vehicle body to the length direction parallel to the length direction of the traction vehicle body, the locking bolt is configured to be axially movable to pass through and lock or unlock the first rotating locking plate and the second rotating locking plate.

8. The multi-functional tractor unit according to claim 1, characterized in that, The rear of the tractor body is connected to an automatic rail clamping device. The automatic rail clamping device includes a sliding guide beam extending along the width direction of the tractor body and a lifting assembly for driving the sliding guide beam to rise and fall. The sliding guide beam is also connected to at least two rail clamping assemblies. Each rail clamping assembly includes a sleeve support slidably sleeved on the sliding guide beam, a rail guide frame connected to the bottom of the sleeve support, a lateral adjustment cylinder for driving the sleeve support to move along the sliding guide beam, a rail clamp that can open or close to hold the rail, a clamp body adjustment cylinder for driving the rail clamp to open or close, and a clamp body lifting cylinder. The clamp body lifting cylinder is used to drive the rail clamp to rise and fall so that the top of the rail held by the rail clamp is received or disengaged from the rail guide frame.

9. The multi-functional tractor according to claim 8, characterized in that, The rail clamping assembly is also connected to a rail locking device, which includes a locking bracket connected to the sleeve support. The bottom of the locking bracket is connected to a locking clamp that can be opened or clamped, and a locking cylinder for driving the locking clamp to open or clamp. The clamp head is connected to a left and right drag wedge in the shape of an "I". When the locking clamp opens or clamps, it drives the left and right drag wedges to cooperate in releasing or clamping the rail housed in the rail guide frame. The rail locking device also includes a locking arm rotatably connected to the locking bracket in the middle, and a locking arm driving cylinder for driving the locking arm to rotate. The locking arm is connected to a wedge. When the locking arm rotates, it drives the wedge to insert or disengage between the top of the corresponding rail and the left and right drag wedges.

10. The method for switching the running gear of a multi-functional tractor according to claim 1, characterized in that, Includes the following steps: When the tires are moving, the track frame that controls the wheel-rail running bracket and the track running mechanism connected to the tractor body drives the two track assemblies to rise, so that at least four tire running mechanisms support the ground and move. During track movement, the wheel-rail traveling bracket connected to the traction vehicle body is raised, and the track frame of the track traveling mechanism is lowered to support the ground for movement. When the railway is moving, the wheel-rail running bracket connected to the traction car body is lowered, so that the steel wheels connected to the two wheel-rail running brackets roll against the two rails to move. When railway crossings are required, temporary transverse rails are first laid between and on the sides of the tracks. The two cross-line transfer frames of the wheel-rail traveling bracket are controlled to rotate 90 degrees around the vertical axis, so that the two corresponding steel wheels of each wheel-rail traveling bracket rotate from having collinear axes and being parallel to the width direction of the traction vehicle body to having two corresponding steel wheels in the same plane and having their axes parallel to the length direction of the traction vehicle body. The wheel-rail traveling bracket connected to the traction vehicle body is then controlled to descend onto the temporary transverse rails laid by rolling and pressing against the two corresponding steel wheels for movement.

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