CN222247199U - Flatbed with single-axle bogie - Google Patents
Flatbed with single-axle bogie Download PDFInfo
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- CN222247199U CN222247199U CN202420835199.9U CN202420835199U CN222247199U CN 222247199 U CN222247199 U CN 222247199U CN 202420835199 U CN202420835199 U CN 202420835199U CN 222247199 U CN222247199 U CN 222247199U
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- 238000013016 damping Methods 0.000 claims abstract description 34
- 238000007667 floating Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000009467 reduction Effects 0.000 claims description 12
- 230000008901 benefit Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 241000282472 Canis lupus familiaris Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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Abstract
The utility model discloses a flat car with a single-axle bogie, and belongs to the technical field of track engineering vehicles. The device comprises a flat car, two single-axle steering frames, two damping devices and two rotation limiting devices, wherein each single-axle steering frame comprises a framework, a wheel set, a braking device, a vibration damping device, a center plate assembly and an annular side bearing device, each damping device comprises two dampers, each rotation limiting device comprises two stop blocks, limiting protrusions are arranged in the middle of the rear side or the middle of the front side of the framework, each limiting protrusion is located between two stop blocks, the framework is rotatably arranged on the flat car through the center plate assembly, each annular side bearing device is arranged around the center plate assembly and comprises an outer rotation guide ring and an inner rotation guide ring, the outer rotation guide ring is fixed on the framework, annular grooves are formed in the inner wall of the outer rotation guide ring, the inner rotation guide ring is located on the adjacent inner side of the outer rotation guide ring, convex rings are coaxially arranged on the outer wall of the outer rotation guide ring, each convex ring is located in each annular groove, floating gaps are formed between the three sides of the convex rings and the corresponding sides of the annular grooves, and the center plate assembly and the inner rotation guide ring are fixed on the flat car.
Description
Technical Field
The utility model belongs to the technical field of track engineering vehicles, and particularly relates to a flat car with a single-axle bogie.
Background
Track engineering vehicles such as shunting locomotives and road maintenance locomotives generally comprise a vehicle body, vehicle-mounted equipment and a bogie, wherein the bogie is arranged at the lower part of the vehicle body and used for supporting the vehicle body and the vehicle-mounted equipment so that the track engineering vehicle can travel along a track, and the vehicle-mounted equipment is arranged on the vehicle body or the bogie and used for executing corresponding operations. In the related art, a bogie of a track engineering vehicle is generally provided with two or three bogies. However, the two or three bogies have complex structures, and have large dead weight and high cost. In the prior art, for a track engineering vehicle with lower requirements on part, a single-axle bogie can be adopted. The axle bogie has only one axle, and its structural form and running performance are greatly different from those of the conventional bogie.
The utility model discloses a unipolar bogie as in the patent of application number CN201910747182.1, it includes a wheelset and sets up the axle box at wheelset's shaft both ends, the bogie still includes framework, first system linkage and second system linkage, the framework includes two curb girders and two end beams, the framework is the mouth font, first system linkage is located the curb girder of framework with between the axle box, second system linkage is located the curb girder top of framework.
The patent with the application number of CN202010910628.0 discloses a single-axle bogie, which comprises a single wheel set, two axle boxes, a primary suspension device and a solar-style truss, wherein the two wheel wheels of the wheel set are pressed on the same wheel axle, two ends of the axle are respectively protruded out of the two wheels, the two axle boxes are respectively sleeved at two ends of the axle and are positioned outside the wheels, the primary suspension device is fixed on the two axle boxes, the solar-style truss comprises two parallel side beams, two parallel cross beams and a middle longitudinal beam, the side beams and the cross beams enclose a closed frame, the middle longitudinal beam is arranged between the two side beams in parallel, two ends of the middle longitudinal beam are respectively fixed with the two cross beams, and the two side beams are respectively connected to the two primary suspension devices, wherein the middle longitudinal beam is used for reinforcing the strength of the truss and providing an installation interface.
The utility model discloses a railway vehicle single-axle bogie as disclosed in the patent with the application number of CN201621336524.9, which comprises a wheel set assembly, an axle box assembly, a hanging device, a foundation braking device and a positioning device, wherein the hanging device is a plate spring type hanging device, one end of the hanging device is located at the top of the axle box assembly, the other end of the hanging device is connected with the bottom of the vehicle, the foundation braking device is a scattered double-side brake shoe braking device and is hung on the bottom of the vehicle, one end of the positioning device is connected with the bottom of the vehicle, the other end of the positioning device is in clearance fit with the axle box assembly, a wearing plate is welded on the positioning device, and the wearing plate and the axle box assembly are rubbed in the running process of the vehicle.
The utility model discloses a unipolar bogie as in the patent of application number CN201810847700.2, which comprises a frame, an axle box is installed respectively at the bottom surface both ends of framework, two install the shaft subassembly between the axle box, the axle box with be equipped with a series damping spring assembly between the framework, a brake block is installed respectively to the bottom surface both ends of framework corresponding the position of the wheel of shaft subassembly, the top surface middle part of framework is equipped with the heart dish round pin, the top surface both ends of framework are equipped with a frame coupling assembling respectively, frame coupling assembling includes a frame connecting plate, the middle part of frame connecting plate is equipped with the spacing connecting seat of bellied frame that makes progress, the spacing connecting seat of frame is square cavity structure, the top surface of the spacing connecting seat of frame is equipped with the frame connection slot along vertically, spacing cartridge has the I-shaped connecting piece in the frame connection slot, the longitudinal both ends of frame connecting plate block respectively and are equipped with a two series rubber spring assembly, two series rubber spring assembly includes two series rubber spring mounting panel and two series rubber spring, two series rubber spring lower extreme block are in on the frame connecting plate, two series rubber spring upper end is in the vulcanization mounting panel.
It can be seen from the above patent that the existing single-axle bogie has no steering structure and the center distance between the two axles is longer. The flatbed is easy to derail when passing through a curve, and safety accidents are caused.
Disclosure of utility model
In order to solve the problems, the embodiment of the utility model provides a flat car with a single-axle bogie, which takes a heart disc assembly and an annular side bearing device as steering structures, wherein the heart disc assembly is of a common structure, the annular side bearing device is used as a side bearing structure, a damping device and a rotation limiting device are used for limiting and returning the rotation of the single-axle bogie, and the flat car can avoid turning and derailing under the advantage of simple structure of the single-axle bogie, so that the cost of the flat car is reduced. The technical scheme is as follows:
The embodiment of the utility model provides a flat car with a single-axle bogie, which comprises a flat car 7 arranged along the front-back direction and two single-axle bogies 8 arranged side by side along the front-back direction at the bottom of the flat car 7, wherein the single-axle bogies 8 comprise a framework 1 arranged along the front-back direction, a wheel pair 2 arranged on the lower side of the framework 1 and along the left-right direction, a braking device 3 on the framework 1 and matched with the wheel pair 2, and a vibration reduction device 4 between the wheel pair 2 and the framework 1; the flat car with the single-axle bogie further comprises a damping device 9 on the front side or the rear side of the single-axle bogie 8 and a rotation limiting device 10 on the other side of the single-axle bogie 8, wherein the damping device 9 and the rotation limiting device 10 are respectively arranged at the bottom of the flat car 7, the damping device 9 comprises two dampers which are arranged in a V shape or a splayed shape, the two dampers are symmetrically arranged left and right by the center line of the wheel set 2, one ends of the two dampers, which are close to each other, are fixed at the bottom of the flat car 7, one ends, which are far away from each other, of the two dampers are respectively fixed at the left end and the right end of the front side or the rear side of the framework 1, a limiting protrusion 17 is arranged at the middle part of the rear side or the front side of the framework 1 and at the rotation limiting device 10, the rotation limiting device 10 comprises two stop blocks which are arranged left and right side by side at the bottom of the flat car 7, the limiting protrusion 17 is positioned at the middle position between the two stop blocks, the single-axle bogie 8 further comprises a center disc assembly 5 and an annular side bearing device 6 which are arranged on the upper side of the framework 1, the framework 1 is rotationally arranged at the bottom of the flat car 7 by the center disc assembly 5, the center disc assembly 5 is positioned on the upper side of the flat car 2, the center disc assembly 5 is positioned on the right and the center disc assembly 2, the center guide ring assembly is positioned on the center ring assembly 2 and the center ring assembly is arranged on the center ring assembly 62 and the outer ring assembly 61 is rotatably arranged on the outer ring 61 of the outer ring 61, the inner wall of the upper plate is coaxially provided with a ring groove 63, the inner rotating guide ring 62 and the outer rotating guide ring 61 are coaxially arranged, the inner rotating guide ring 62 and the outer rotating guide ring 61 are positioned on the adjacent inner side of the outer rotating guide ring 61, the inner rotating guide ring and the outer rotating guide ring are coaxially arranged outside the heart plate assembly 5, the upper side of the inner rotating guide ring is higher than the upper side of the outer rotating guide ring 61 and is flush with the upper side of the heart plate assembly 5, the inner rotating guide ring is positioned above the framework 1, the outer wall of the inner rotating guide ring is coaxially provided with a convex ring 64 matched with the ring groove 63, the convex ring 64 is positioned in the ring groove 63, floating gaps 65 are reserved between three sides of the convex ring 64 and corresponding sides of the ring groove 63, and the upper side of the heart plate assembly 5 and the upper side of the inner rotating guide ring 62 are fixed at the bottom of the flat car 7.
Further, the two dampers in the embodiment of the utility model are arranged in a V shape, the two dampers comprise spring dampers or hydraulic dampers, a hinge seat 71 is arranged at the bottom of the flat car 7 and right in front of or right behind the framework 1, the hinge seat 71 is an L-shaped plate arranged along the left-right direction, the upper end of a vertical plate of the L-shaped plate is fixed at the bottom of the flat car 7, a horizontal plate of the L-shaped plate is positioned at the lower end of the vertical plate and is positioned at one side of the vertical plate close to the single-axle bogie 8, the two dampers are hinged with the lower side of the horizontal plate through a rotating shaft arranged vertically, and a third reinforcing rib 72 is arranged between one side of the vertical plate far away from the single-axle bogie 8 and the bottom of the flat car 7 along the front-rear direction.
The rotation limiting device 10 in the embodiment of the utility model comprises a bottom plate, a side plate, two stop blocks and two fourth reinforcing ribs 73, wherein the side plate is arranged in the left-right direction, the left end and the right end of the side plate are respectively fixed on one side of the two stop blocks, which is far away from the single-axle bogie 8, the bottom plate is positioned below the limiting protrusion 17 and is arranged in the left-right direction, the left end and the right end of the bottom plate are respectively fixed on the lower sides of the two stop blocks, the two fourth reinforcing ribs 73 are respectively arranged on the two stop blocks, and the fourth reinforcing ribs are arranged between one side of the stop blocks, which is far away from the limiting protrusion 17, and the bottom of the flat car 7 and are arranged in the left-right direction.
Specifically, the damping device 9 in the embodiment of the utility model is located on one side of the single-axle bogie 8 near the middle of the flat car 7, and the rotation limiting device 10 is located on one side of the single-axle bogie 8 far from the middle of the flat car 7.
The core plate assembly 5 in the embodiment of the utility model comprises a lower core plate 51, an upper core plate 52 and a center pin 53, wherein the lower core plate 51 is fixed on the upper side of the framework 1, the axle center of the lower core plate is positioned on the center vertical line of the wheel set 2, the upper core plate 52 is positioned on the upper side of the lower core plate 51 and is coaxially arranged with the lower core plate 51, the center pin 53 penetrates downwards through the axle centers of the upper core plate 52 and the lower core plate 51 and is fixedly connected with the framework 1, the inner rotation guide ring 62 is coaxially arranged outside the upper core plate 52, the upper side of the inner rotation guide ring is flush with the upper side of the upper core plate 52, and the upper side of the upper core plate 52 and the upper part of the center pin 53 are fixed on the flat car 7.
Further, two fixing plates 74 for fixing the single-axle bogie 8 are arranged at the bottom of the flat car 7 in the embodiment of the utility model, the fixing plates 74 are circular plates which are coaxially arranged with the annular side bearing device 6, the diameter of the circular plates is larger than the outer diameter of the outer rotating guide ring 61, round holes for the center pins 53 to pass through are formed in the circle centers of the circular plates, the upper sides of the upper center plate 52 and the inner rotating guide ring 62 are welded and fixed on the lower sides of the fixing plates 74, the center pins 53 are vertical downward bolts, and the heads of the center pins 53 are propped against the upper sides of the fixing plates 74.
The frame 1 in the embodiment of the utility model comprises a supporting plate 11, a cross beam 12 and two longitudinal beams 13, wherein the cross beam 12 and the two longitudinal beams are arranged on the lower side of the supporting plate 11, the center plate assembly 5 and the annular side bearing device 6 are arranged on the upper side of the supporting plate 11, the two longitudinal beams 13 are arranged side by side in the front-back direction, the longitudinal beams are symmetrically arranged on the left and right sides of the supporting plate 11 in the middle vertical line of the wheel pair 2, the longitudinal beams are respectively arranged at the left and right ends of the supporting plate 11, the fixing pins 16 are arranged between the two longitudinal beams 13 and are formed by two longitudinal plates arranged side by side in the left-right direction, the lower parts of the longitudinal beams are respectively arranged at the front-back side and the two sides of the rotating shaft, the fixing pins 16 are respectively arranged at the front-back side and the two longitudinal blocks and the two side blocks are respectively arranged between the two longitudinal blocks 13 and the two vibration reduction units, the two longitudinal beams are respectively arranged between the two vibration reduction units 10 and the two longitudinal beams, and the two vibration reduction units 10 are respectively arranged between the two longitudinal beams and the two vibration reduction units 13.
Specifically, the supporting plate 11 in the embodiment of the utility model comprises a circular plate in the middle and two strip-shaped plates on the left side and the right side of the circular plate, the outer sides of the circular plate are flush with the outer sides of the strip-shaped plates on the corresponding sides, the two strip-shaped plates are respectively positioned right above the two longitudinal beams 13 and are all arranged along the front and rear directions, the circular plate and the annular side bearing device 6 are coaxially arranged and are matched with the outer rotating guide ring 61 in size, the center plate assembly 5 and the annular side bearing device 6 are all arranged on the upper side of the circular plate, the transverse plate is fixed on the lower side of the circular plate, the two ends of the transverse plate are fixedly connected with the longitudinal plates on the corresponding sides, the longitudinal plates are fixed on the lower sides of the strip-shaped plates, the limiting protrusions 17 are arranged along the front and rear directions and are arranged in the middle of the front side or the middle of the rear side of the circular plate, and the damper is hinged with the junction of the circular plate and the strip-shaped plates through a vertically arranged rotating shaft.
The braking device 3 in the embodiment of the utility model comprises two or four braking units, wherein the braking units are arranged along the front and rear directions, the two braking units are respectively arranged at one end of the two longitudinal beams 13 far away from the middle part of the flat car 7 and are positioned at the same side as the rotation limiting device 10, the front part and the rear part of the two longitudinal beams 13 are respectively provided with one braking unit, and the two braking units on the same longitudinal beam 13 are oppositely arranged and are respectively positioned at the front and rear sides of the rail wheels at the corresponding sides.
Specifically, the flatbed 7 in the embodiment of the utility model has a length of 7.5-9.5m, a width of 1.5-1.7m, a distance between two wheel sets 2 of 5-6m, a depth of the ring groove 63 of 25-35mm, a width of 40-60mm, an outer diameter of the inner rotating guide ring 62 of 400-500mm, an outer diameter of the outer rotating guide ring 61 of 650-700mm, a gap between the outer rotating guide ring and the inner rotating guide ring 62 of 5-10mm, and a floating gap 65 of 5-8mm.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that the flat car with the single-axle bogie is provided, the center plate assembly and the annular side bearing device are used as steering structures, the center plate assembly is of a common structure, the annular side bearing device is used as a side bearing structure, the damping device and the rotation limiting device limit and return the rotation of the single-axle bogie, and under the advantage of simple structure of the single-axle bogie, turning derailment can be avoided, and the cost of the flat car is reduced. In addition, the damping device has the advantages of simple structure, easy maintenance, simple installation and maintenance of the wheel set and capability of detaching the wheel set by detaching the fixing pin. The framework has higher strength on the premise of simpler structure.
Drawings
FIG. 1 is a schematic illustration of a single-side braked flatbed with single axle bogie of the present patent;
FIG. 2 is a side view of a single-side braked flatbed with single axle bogie of the present patent;
FIG. 3 is a cross-sectional view of a single-side braked flatbed with single-axle bogie of the present patent;
FIG. 4 is an enlarged view of a portion of FIG. 1;
FIG. 5 is a schematic illustration of a dual-side braked flatbed with single axle bogie of the present patent;
FIG. 6 is a schematic structural view of a single-side braked single-axle bogie;
FIG. 7 is a top view of a single-side braked single-axle bogie;
FIG. 8 is a cross-sectional view taken along A-A of FIG. 7;
FIG. 9 is a B-B cross-sectional view of FIG. 8;
FIG. 10 is a schematic structural view of the frame;
FIG. 11 is a schematic view of the construction of an annular side bearing apparatus;
Fig. 12 is a cross-sectional view of fig. 10.
In the figure, a framework 1, a wheel set 2, a braking device 3, a vibration reduction device 4, a 5-core disc assembly, a 6-ring side bearing device, a 7-flat car, an 8-single-axle bogie, a damping device 9 and a 10-rotation limiting device are arranged;
The device comprises a supporting plate 11, a cross beam 12, a longitudinal beam 13, a first reinforcing rib 14, a second reinforcing rib 15, a fixing pin 16 and a limiting bulge 17;
31 a first connecting plate, 32 a second connecting plate, 33 a brake cylinder, 34 a brake shoe and 35 a brake base;
41 supporting blocks and 42 soft vibration reduction plates;
A 51 lower heart plate, a 52 upper heart plate, and a 53 center pin;
61 outer rotating guide rings, 62 inner rotating guide rings, 63 annular grooves, 64 convex rings, 65 gaps, 66 oil cups and 67 fixing bolts;
71 hinge seats, 72 third reinforcing ribs, 73 fourth reinforcing ribs, 74 fixing plates.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
Example 1
Referring to fig. 1-4 and 6-12, example 1 provides a flatbed with a single axle bogie, with wheel set 2 braked on one side. The flat car with the single-axle bogie comprises a flat car 7, two single-axle bogies 8, two damping devices 9 (used for enabling the single-axle bogies 8 to rotate back and enabling wheel pairs 2 to be arranged along the left-right direction, and meanwhile, when rail wheels run on a rail surface and encounter foreign matters, wheel treads are separated from the rail surface, the damping devices 9 can ensure that the bogies do not deviate from the rail surface in an angle mode when being short relative to the rail surface, and therefore the wheels are prevented from derailing), two rotation limiting devices 10 (used for limiting the rotation angle of the single-axle bogies 8) and the like. Wherein, flatbed 7 sets up along fore-and-aft direction, and its length can be 7.5-9.5m specifically, and its width can be 1.5-1.7m specifically. The two single-axle bogies 8, the two damping devices 9 and the two rotation limiting devices 10 are all arranged at the bottom of the flat car 7. Two single-axle bogies 8 are provided in the front and rear of the flatbed 7, respectively, specifically the distance between the two wheel pairs 2 is 5-6m. Each single-axle bogie 8 is provided with a damping device 9 and a rotation limiting device 10. The damper 9 is provided on the front side or the rear side of the single-axle bogie 8, and the rotation limiter 10 is provided on the other side (rear side or front side) of the single-axle bogie 8. Specifically, the damping device 9 is located on the side of the single-axle bogie 8 near the middle of the flat car 7, and the rotation limiting device 10 is located on the side of the single-axle bogie 8 far from the middle of the flat car 7.
Wherein the single axle bogie 8 comprises a frame 1, a wheel set 2, a braking device 3, a vibration damping device 4 (reducing vibration of the vehicle body, thereby ensuring stability of the vehicle body), a center plate assembly 5 (transmitting traction force and load weight) and an annular side bearing device 6 (thereby replacing the existing side bearing structure, making the single axle bogie structure simpler, ensuring good contact between an upper center plate and a lower center plate when the vehicle is started and braked emergently, preventing overturning of the vehicle in this state), etc. Wherein, the frame 1 is arranged along the front and back direction, and is rotationally arranged at the bottom of the flat car 7 through the heart disk assembly 5, and a limit bulge 17 is arranged at the middle part of the rear side or the middle part of the front side and the rotation limiting device 10, and comprises a supporting plate 11, a cross beam 12 at the lower side of the supporting plate, two longitudinal beams 13 and the like. The damping device 9 and the rotation limiting device 10 are both located between the two stringers 13. The wheel set 2 is arranged along the left and right directions, is a shaftless wheel set, and comprises a rotating shaft, rail wheels at two ends of the rotating shaft and the rail wheels. The braking device 3 is arranged on the frame 1 and is matched with the wheel set 2, and the braking device can be a cylinder-driven braking structure, and can adopt single-side braking (single-side braking in the embodiment) or double-side braking. The vibration damping device 4 is arranged between the wheel set 2 and the frame 1, and comprises two vibration damping units which are arranged side by side left and right. The center plate assembly 5 is provided at the upper middle part of the frame 1, which can realize the steering of the frame 1, is located right above the middle part of the wheel set 2, and comprises a lower center plate 51, an upper center plate 52, a center pin 53 and the like. An annular side bearing means 6 is provided on the upper side of the frame 1, which is arranged around the heart-piece assembly 5, comprising an outer rotating guide ring 61, an inner rotating guide ring 62, etc., which function as side bearings.
The core plate assembly 5 in this embodiment may be referred to as CN 20090086863. X, CN202222838425.2, CN200710014858.3, and the like. The lower core plate 51 and the upper core plate 52 are of mutually matched circular structures, and central holes for the central pins 53 to pass through are arranged at the axle centers of the lower core plate and the upper core plate along the vertical direction. The lower core plate 51 is fixed to the upper side of the frame 1 (specifically, a circular plate) with its axis positioned on the center vertical line (vertical arrangement) of the wheel set 2, and the upper core plate 52 is positioned on the upper side of the lower core plate 51 and is coaxially arranged with the lower core plate 51. The center pin 53 is vertically disposed, penetrates through the axes of the upper core plate 52 and the lower core plate 51 downward, and is fixedly connected with the frame 1 at the lower portion thereof. The outer rotary guide ring 61 is fixed to the frame 1 and has a ring groove 63 coaxially provided on the inner wall thereof. The inner rotary guide ring 62 is coaxially disposed with the outer rotary guide ring 61, is located adjacent to the inner side of the outer rotary guide ring 61 (the gap between the outer rotary guide ring 61 and the inner rotary guide ring 62 is 5-10 mm), is located outside the heart plate assembly 5, is coaxially disposed with the heart plate assembly 5, has an upper side higher than the upper side of the outer rotary guide ring 61 and is flush with the upper side of the upper heart plate 52, is located above the frame 1, and is coaxially provided with a convex ring 64 fitted with the annular groove 63 on the outer wall thereof. The upper side of the inner rotating guide ring 62 and the upper side of the upper center plate 52 are fixedly connected with the bottom of the flat car 7. The collar 64 is located in the ring groove 63 with a floating gap 65 (in particular 5-8 mm) between its three sides and the corresponding sides of the ring groove 63. The outer side of the outer rotating guide ring 61 is provided with an oil cup 66 communicating with the ring groove 63, and the outer rotating guide ring 61 is fixed to the frame 1 by a plurality of fixing bolts 67 (specifically, 10). 5 fixing bolts 67 are located at the front of the outer rotating guide ring 61 between the two stringers 13, and another 5 fixing bolts 67 are located at the rear of the outer rotating guide ring 61 between the two stringers 13. Further, the bottom of the flatbed 7 is provided with two fixing plates 74 for fixing the single-axle bogie 8 (the two fixing plates 74 are arranged side by side in front of and behind). The fixed plate 74 is a circular plate coaxially provided with the annular side bearing device 6, and has a diameter larger than the outer diameter of the outer rotating guide ring 61, and a circular hole (specifically, a circular hole slightly larger than the center pin 53) through which the center pin 53 passes is provided at the center of the circle. The upper side of the upper hub 52 and the inner rotating guide ring 62 are both welded to the underside of the fixed plate 74. The center pin 53 is a vertically downward bolt, the head of which abuts against the upper side of the fixing plate 74, and the lower portion of which is screw-coupled with the support plate 41.
Specifically, the ring grooves 63 and the convex rings 64 in the embodiment of the present utility model are rectangular in cross section. The depth of the ring groove 63 is 25-35mm and the width thereof is 40-60mm. The outer diameter of the inner rotating guide ring 62 is 480-540mm. The outer diameter of the outer rotating guide ring 61 is 650-700mm.
The damping device 9 comprises two dampers which are arranged in a V shape or a splayed shape, and specifically, the two dampers are arranged in a V shape. The two dampers are symmetrically arranged in a left-right direction with a center line (arranged along the front-back direction) of the wheel set 2, one ends of the dampers, which are close to each other, are fixed at the bottom of the flat car 7, and one ends of the dampers, which are far away from each other, are respectively fixed at the left and right ends of the front side or the rear side of the framework 1. The damper comprises a spring damper or a hydraulic damper and the like, and the telescopic travel of the damper is smaller than 100mm. The bottom of flatbed 7 just is located frame 1 in the place ahead or just behind and is equipped with articulated seat 71, and articulated seat 71 is along the L shaped plate (including vertical board and horizontal plate) of controlling the orientation setting. The upper end of the vertical plate (vertical arrangement) is fixed at the bottom of the flatbed 7, and the horizontal plate (horizontal arrangement) is located at the lower end of the vertical plate and at one side of the vertical plate close to the single-axle bogie 8. The two dampers are hinged with the lower side of the horizontal plate through a vertically arranged rotating shaft, and a third reinforcing rib 72 is arranged between one side of the vertical plate, which is far away from the single-axle bogie 8, and the bottom of the flat car 7 along the front-back direction.
The rotation limiting device 10 includes a bottom plate, a side plate, two blocks, two fourth reinforcing ribs 73, and the like, the bottom plate and the side plate are specifically rectangular plates, and the two blocks are located in front of or behind the supporting plate 11 (specifically a circular plate) and are matched with the limiting protrusion 17 (limiting by blocking). Two dogs are arranged side by side at the bottom of the flatbed 7. The limit projection 17 is located at an intermediate position between the two stoppers, and the distance between the left and right sides and the stopper on the corresponding side is required to ensure that the single-axle bogie 8 rotates within a certain rotation angle (e.g., 10 °). The rotation limiting device 10 and the damping device 9 are matched. The side plates are arranged along the left-right direction, and the left end and the right end of the side plates are respectively fixed on one side of the two check blocks, which is far away from the single-axle bogie 8. The bottom plate is located the below of spacing arch 17, and it sets up along controlling, and its both ends are fixed respectively in the downside of two dogs about. Two fourth strengthening ribs 73 are respectively arranged on the two check blocks, and the fourth strengthening ribs are arranged between one side of the check block, which is far away from the limit bulge 17, and the bottom of the flat car 7 and are arranged along the left-right direction. The center plate assembly 5 and the annular side bearing device 6 are arranged on the upper side of the supporting plate 11, the supporting plate 11 comprises a circular plate in the middle, two strip-shaped plates on the left side and the right side of the circular plate, and the outer side of the circular plate is flush with the outer side of the strip-shaped plate on the corresponding side. The two strip-shaped plates are respectively located right above the two longitudinal beams 13 and are both arranged along the front-rear direction, and the circular plate is coaxially arranged with the annular side bearing device 6 and is matched with the outer rotation guide ring 61 in size (the diameter of the circular plate is almost equal to the outer diameter of the outer rotation guide ring 61). The center plate assembly 5 and the annular side bearing device 6 are arranged on the upper side of the circular plate, and the limiting protrusion 17 is arranged along the front-back direction and is arranged in the middle of the front side or the middle of the back side of the circular plate, and is particularly positioned on the middle line of the flat car 7. The damper is hinged with the junction of the circular plate and the strip-shaped plate through a rotating shaft which is vertically arranged. The lower hub 51 and the outer rotation guide ring 61 are fixed to the upper side of the circular plate. The transverse plate is fixed on the lower side of the circular plate, the left end and the right end of the transverse plate are fixedly connected with the longitudinal plates on the corresponding sides, and the longitudinal plates are fixed on the lower side of the strip-shaped plate. The two stringers 13 are arranged side by side from side to side, all of which are arranged in the front-rear direction, and are symmetrically arranged in the left-right direction with the center line of the wheelset 2 (arranged in the front-rear direction), and are respectively positioned at the left and right ends of the support plate 11, and are positioned between the two rail wheels of the wheelset 2, and are composed of two longitudinal plates (arranged in the front-rear direction) arranged side by side from side. The cross beam 12 is located between two longitudinal beams 13, and is disposed in the left-right direction, and two fixing pins 16 (disposed in the front-rear direction) for fixing the rotating shaft of the wheel set 2 are disposed side by side in the left-right direction at the lower portion thereof, and each of the two transverse plates (disposed in the left-right direction) is disposed side by side in the front-rear direction and is disposed on the front-rear sides of the rotating shaft. The lower part of the longitudinal plate is provided with an inverted U-shaped notch for the rotating shaft to pass through along the vertical direction. The fixing pins 16 are abutted against the lower side of the rotating shaft, and the front and rear ends thereof are respectively fixed to two transverse plates, which are disposed close to the stringers 13 on the corresponding sides. The shaft is located between two transverse plates, which are located in inverted U-shaped notches, with the left and right ends extending outwardly relative to the stringers 13 on the respective sides. Two vibration damping units are respectively located in the two longitudinal beams 13, the vibration damping units are located between the two longitudinal plates and between the rotating shaft and the supporting plate 11. Further, a plurality of (specifically, four) first reinforcing ribs 14 are arranged between the two longitudinal plates, and the plurality of first reinforcing ribs 14 are arranged side by side in front of and behind. The first reinforcing ribs 14 are arranged in the left-right direction, and the upper sides thereof are fixed to the lower sides of the strip-shaped plates, which are specifically rectangular plates. One side of the transverse plate far away from the rotating shaft is provided with a plurality of (specifically two) second reinforcing ribs 15, the plurality of second reinforcing ribs 15 are arranged side by side left and right, the second reinforcing ribs 15 are arranged along the front and back directions, and the upper sides of the second reinforcing ribs are fixed on the lower sides of the circular plates. The vibration damping unit includes a support block 41, a soft vibration damping plate 42 on the upper side thereof, and the like. The support block 41 and the soft vibration damping plate 42 are disposed in the front-rear direction, between the two longitudinal plates, with the left and right sides thereof being located adjacent inner sides of the longitudinal plates on the corresponding sides. The support block 41 is fixed to the upper side of the rotation shaft, and the soft damper plate 42 is sandwiched between the support block 41 and the support plate 11. Specifically, the soft vibration damping plate 42 is a strip-shaped rubber plate having a thickness of 8-15mm. The supporting block 41 is a rectangular block, and an arc-shaped notch matched with the rotating shaft is arranged in the middle of the lower side of the supporting block along the left-right direction and is welded and fixed on the rotating shaft.
Specifically, taking the front single-axle bogie 8 as an example, the limit projection 17 is located at the front middle of the circular plate. The two dampers are positioned at the left and right ends of the rear side of the circular plate, and the distance between the two dampers is gradually reduced from front to rear. The front end of the damper is hinged on the circular plate, and the rear end is hinged on the hinge seat 71.
The braking device 3 in the embodiment of the utility model comprises two braking units, wherein the two braking units are respectively arranged at one ends of the two longitudinal beams 13 far away from the middle part of the flat car 7, and the braking units and the rotation limiting device 10 are positioned at the same side. Specifically, for the front single-axle bogie 8, two brake units are provided in front of the two stringers 13, respectively, and they are located in front of the two rail wheels, respectively. Wherein the brake unit is disposed in the front-rear direction and includes a first link plate 31, a second link plate 32, a brake cylinder 33, a brake shoe 34, a brake base 35, and the like. The brake base 35 is disposed vertically, outside the side member 13, and its upper portion is hinged (by a rotation axis in the left-right direction) to the first link plate 31 on the side member 13. The brake cylinder 33 is disposed in the front-rear direction, and is located on one side of the brake base 35 away from the rail wheel, and is located on the outer side of the longitudinal beam 13, the front end or the rear end of the cylinder body is hinged (through a left-right rotation shaft) to the second connecting plate 32 at the end of the longitudinal beam 13, the telescopic rod is hinged to the middle part of the brake base 35 (through a left-right rotation shaft, the telescopic rod is located between two side plates), and the brake cylinder can be specifically formed by two side plates disposed side by side. The brake shoe 35 is located on one side of the brake base 35 near the rail wheel, which is located adjacent to the front or rear of the rail wheel, and is hinged (by a rotation axis in the left-right direction, the hinge seat of the brake shoe 35 is located between the two side plates) to the lower part of the brake base 35. The first link plate 31 and the second link plate 32 are each disposed in the left-right direction. Specifically, the first connecting plate 31 is located at the front or rear ends of the two longitudinal plates, and the second connecting plate 32 is fixed to the strip-shaped plate.
Specifically, the flatbed with the single-axle bogie in the present embodiment is all symmetrically disposed with respect to the center line (disposed in the front-rear direction) of the wheel set 2.
Example 2
Referring to fig. 5, embodiment 2 provides a flatbed with a single axle bogie, whose wheel set adopts double-side braking, and whose structure is substantially the same as that of embodiment 1, except that the braking device 3 in this embodiment includes four braking units. The front and rear parts of the two stringers 13 are respectively provided with a brake unit, and the two brake units on the same stringer 13 are oppositely arranged and are respectively positioned at the front side and the rear side of the rail wheel at the corresponding side. Correspondingly, the two longitudinal beams 13 and the one transverse beam 12 are arranged in an I shape.
Example 3
Embodiment 3 provides a pallet truck with a single axle bogie having the same structure as that of embodiment 1 except that the pallet truck 7 in this embodiment has a length of 8.5m, a width of 1.6m, and a height of 0.57m from the ground at the top, and is operable on a 20m turn radius track. The distance between the two wheel sets 2 is 5.5m and the diameter of the rail wheel is 0.35m. The depth of the ring groove 63 is 30mm and the width thereof is 50mm. The inner rotating guide ring 62 has an outer diameter of 510mm and an inner diameter of 450mm. The outer diameter of the outer rotating guide ring 61 is 670mm and the clearance between it and the inner rotating guide ring 62 is 8mm, the floating clearance 65 is 6mm. The soft vibration damper plate 42 is a strip-shaped rubber plate having a thickness of 100mm. The diameter of the lower heart plate 51 is 310mm and the diameter of the upper heart plate 52 is 280mm.
The "first", "second", "third" and "fourth" in this patent are only used for distinguishing, and have no other special meaning.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420835199.9U CN222247199U (en) | 2024-04-22 | 2024-04-22 | Flatbed with single-axle bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420835199.9U CN222247199U (en) | 2024-04-22 | 2024-04-22 | Flatbed with single-axle bogie |
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| Publication Number | Publication Date |
|---|---|
| CN222247199U true CN222247199U (en) | 2024-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420835199.9U Active CN222247199U (en) | 2024-04-22 | 2024-04-22 | Flatbed with single-axle bogie |
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| Country | Link |
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| CN (1) | CN222247199U (en) |
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