CN212098840U

CN212098840U - Portable small rail car

Info

Publication number: CN212098840U
Application number: CN202020703598.1U
Authority: CN
Inventors: 聂肃; 朱利君; 周利文; 李雪辉; 何为国; 白小兰
Original assignee: Zhuzhou CSR Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-08
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a portable small rail car, portable small rail car includes: a frame; the fence is arranged on the frame and used for providing safety protection for the driving process and providing mounting support for the control box and the operating platform; the front row seat is arranged on the frame and used for riding in driving operation; the rear row seat is arranged on the frame and used for carrying people and goods and expanding the application space; the driving wheel pair and the driven wheel pair are arranged at the bottom of the frame, and provide driving force for the rail trolley, so that the functions of advancing, retreating, braking and parking of the whole trolley are realized; the driven wheel pair provides support for walking and realizes the mileage measurement function. The utility model discloses can solve current light-duty small rail car railcar and go up the lane difficult, the cost time is long, intensity of labour is big to and the limited technical problem of range of application.

Description

Portable small rail car

Technical Field

The utility model belongs to the technical field of the rail engineering machinery technique and specifically relates to an adopt based on portable small rail car of wheel pair split multicomponent combination formula body construction, can realize the operation of going up and down through assembling fast and decomposing the mode for short distance engineering transportation and rail engineering operation.

Background

Light rail cars have been widely used in recent years as important rail construction machines in the fields of industrial transportation, small-sized equipment mounting, and the like. The light rail car has various forms and functions, but mainly realizes line operation by utilizing the running interval, so that the requirement of quickly getting on and off the road must be met. At present, the method usually adopted depends on manual carrying or realizes the rapid loading and unloading of the whole vehicle by an auxiliary device. However, the manual transportation method is labor intensive and has potential safety hazard, and a special upper and lower lane device needs to be added by the auxiliary device, and has certain requirements on the line conditions of the upper and lower lane points. Both of these approaches therefore place significant limitations on the use of light rail cars. Under the background, a light rail trolley based on a novel structure and an on-off method thereof are developed, so that the technical problems that the assembly and disassembly of a wheel set and a frame are time-consuming and labor-consuming and the application range is extremely limited are solved, and the daily inspection operation requirement of an urban rail transit line is particularly necessary.

In the prior art, mainly have following technical scheme and the utility model discloses the application is relevant:

the inventor applies for the navigation technology of savowei (xi' an) on 04/06 days in 2012, announces the navigation technology of savowei on 01 days 04/2015, and discloses a portable multifunctional track combined traction trolley, which is a Chinese utility model patent with the publication number of CN 102616244B. The traction trolley comprises a trolley body and a trolley frame arranged below the trolley body, wherein the trolley body is of a two-side open type structure, the trolley body comprises a bottom plate, a front windshield support and a rear side wall plate, the front windshield support and the rear side wall plate extend upwards along two ends of the bottom plate, and the front windshield support and the rear side wall plate form a two-side open type closed frame. The roof formed by the front windshield bracket and the rear side wall plate is provided with an illuminating lamp, the front part of the trolley is provided with a searchlight, and the rear part of the trolley is provided with a tail lamp. A trolley driving wheel set and a loading wheel set are respectively arranged below the trolley frame. A saddle is arranged on the rear side of the power operating mechanism of the bottom plate of the trolley body, and a tool box is arranged behind the saddle. The multifunctional wire-feeding device has the advantages of small volume, light weight, portability, power, multifunction and the like, can be used for two persons to get on and off the wire, turn around or change the wire anytime and anywhere, can avoid coming and going vehicles or other obstacles in time, and does not occupy track lines.

Although the existing light rail car can meet the operation requirement of the light load condition of the line, the problem that the trolley rapidly goes up and down the road is not considered, so that the dismounting process is time-consuming and labor-consuming, and the daily routing inspection requirement of the line under the short-distance condition cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a portable small rail car to it is difficult to solve the last lane of current light-duty small rail car railcar, and the cost is long, and intensity of labour is big, and the limited technical problem of range of application.

In order to realize the utility model discloses the purpose, the utility model particularly provides a portable small rail car's technical implementation scheme, portable small rail car, include:

a frame;

the fence, the front row seat and the rear row seat are arranged on the frame;

the control box and the operating platform are arranged on the fence;

and the driving wheel pair and the driven wheel pair are arranged at the bottom of the frame, the driving wheel pair provides driving force for the portable rail trolley, and the driven wheel pair provides support for the walking of the portable rail trolley.

Furthermore, the driving wheel pair and the driven wheel pair respectively comprise wheel shafts and wheels arranged at two ends of the wheel shafts. The driving wheel pair and the driven wheel pair are mounted at the bottom of the frame through a quick dismounting structure. The quick assembly disassembly structure comprises a pressing plate, a wheel pair mounting plate, a positioning locking plate, a locking bolt, a mounting bottom plate fixed at the bottom of the frame and a supporting and positioning plate fixed on the wheel shaft. The mounting bottom plate, the wheel set mounting plate and the positioning locking plate are sequentially fixed between the pressing plate and the supporting positioning plate from top to bottom through the locking bolts.

Furthermore, an opening for the locking bolt to pass through is formed in one side, facing the wheel, of the pressing plate, and two guide grooves are formed in the pressing plate in parallel along the transverse direction. The quick assembly disassembly structure further comprises a first screw, the screw penetrates through the guide groove and fixes the pressing plate on the installation bottom plate, and the fixing position of the pressing plate on the installation bottom plate is adjusted through sliding of the screw in the guide groove.

Furthermore, a first through hole for the locking bolt to pass through is formed in the mounting base plate, the quick assembly disassembly structure further comprises a second screw, and a first fastening screw hole is formed in the mounting base plate. And the second screw penetrates through the first fastening screw hole and fixes the mounting bottom plate to the bottom of the frame. The upper surface of the mounting base plate is provided with a first positioning boss fixed with the bottom of the frame, the lower surface of the mounting base plate is provided with two positioning convex edges which are parallel to each other along the transverse direction, and the positioning convex edges are positioned on two longitudinal sides of the mounting base plate.

Furthermore, the quick assembly disassembly structure still includes the locating pin, the locating pin sets up in the upper surface that the location locking plate is close to wheel one side. And a positioning clamping groove for accommodating a positioning pin is formed on one side of the wheel pair mounting plate facing the wheel. Two positioning steps are transversely arranged on the upper surface of the wheel set mounting plate in parallel, the positioning steps are located on two longitudinal sides of the wheel set mounting plate, and a limiting structure is formed between the positioning steps and the positioning convex ribs. The wheel set mounting plate is provided with a second through hole for the locking bolt to pass through, the wheel set mounting plate is further provided with a first counter sink, and the second screw passes through the first counter sink and the first fastening screw hole and fixes the wheel set mounting plate and the mounting bottom plate to the bottom of the frame.

Furthermore, the positioning clamping groove is provided with a protruding part towards the upper part, and the protruding part is used for limiting the transverse movement of the mounting bottom plate towards one side of the wheel.

Furthermore, the quick assembly disassembly structure still includes fastening screw, the second fastening screw has been seted up on the support locating plate, fastening screw passes second fastening screw to be fixed in on the shaft with supporting the locating plate. And a fifth counter sink for accommodating the bolt head of the locking bolt is formed in the supporting and positioning plate. The upper surface of the supporting and positioning plate is transversely provided with a second positioning groove, and the upper surface of the supporting and positioning plate is longitudinally provided with a third positioning groove. And a reinforcing rib is arranged between the bottom of the supporting and positioning plate and the wheel shaft.

Furthermore, a third through hole for a locking bolt to pass through is formed in the positioning and locking plate, and the mounting bottom plate, the wheel set mounting plate and the positioning and locking plate are fixed between the pressing plate and the supporting and positioning plate through the locking bolt. The upper surface of the positioning locking plate close to one side of the wheel is provided with a first positioning groove, and a second counter sink is arranged in the first positioning groove. The quick assembly disassembly structure still includes holding screw, holding screw passes the second counter sink and is fixed in the locating pin in the first locating slot, the locating pin pair wheel is spacing to the lateral shifting of mounting panel. And a third counter bore is further formed in the positioning and locking plate, and the fastening screw penetrates through the third counter bore and the second fastening screw hole and fixes the positioning and locking plate and the supporting and positioning plate on the wheel shaft. And a second positioning boss is longitudinally formed on the lower surface of the positioning and locking plate, and a limiting structure is formed between the second positioning boss and the second positioning groove. And a third positioning boss and a fourth positioning boss are transversely formed on the lower surface of the positioning and locking plate, and a limiting structure is formed between the third positioning boss and the third positioning groove and between the fourth positioning boss and the third positioning groove.

Furthermore, a first weight reducing groove and a second weight reducing groove are formed in the wheel set mounting plate, and the first weight reducing groove and the second weight reducing groove are respectively located on two sides of the second through hole in the transverse direction of the wheel set mounting plate. And a third weight-reducing groove is formed in the positioning locking plate and is positioned between the first positioning groove and the third through hole.

Furthermore, the quick assembly disassembly structure still includes lock nut and anticreep screw, lock nut fastens in lock bolt's afterbody for fix the clamp plate. The anti-falling screw is fastened in the opening at the tail part of the locking bolt to prevent the locking nut from falling off from the locking bolt. And a gap is reserved between the top surface of the locking nut and the bottom surface of the screw head of the anti-falling screw.

Through implementing the aforesaid the utility model provides a portable small rail car's technical scheme has following beneficial effect:

the utility model discloses portable small rail car adopts the multicomponent combination formula body construction based on the wheel pair split, under the prerequisite that satisfies the functional requirement, controls single component weight in lighter within range to can disassemble whole car fast in the short time for the widget that a plurality of weights are lighter, and realize the transport of upper and lower way, dismouting process labour saving and time saving has solved the technical problem of the difficult way about the dolly under the short distance line condition, has promoted the practicality of dolly, has expanded the range of application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

Fig. 1 is a schematic structural component view of a specific embodiment of the portable rail car of the present invention;

FIG. 2 is a side view of the front structure of one embodiment of the portable rail cart of the present invention;

fig. 3 is a front view of the structure of the drive axle in an embodiment of the portable rail car of the present invention;

fig. 4 is a schematic perspective view of a driving axle in an embodiment of the portable rail car of the present invention;

fig. 5 is a schematic view of a driving axle mounting structure of a specific embodiment of the portable rail car of the present invention;

FIG. 6 is a schematic diagram of an assembly structure of an embodiment of the portable rail car of the present invention;

FIG. 7 is a simplified schematic assembly diagram of a drive axle mounting profile configuration for one embodiment of the portable rail cart of the present invention;

FIG. 8 is an assembly schematic view of a drive axle mounting structure of another embodiment of the portable rail car of the present invention;

FIG. 9 is an enlarged partial schematic view of FIG. 8;

fig. 10 is a schematic cross-sectional view of a drive axle mounting structure for one embodiment of the portable rail cart of the present invention;

FIG. 11 is an enlarged partial schematic view of FIG. 10;

fig. 12 is an enlarged detail schematic view of the drive axle mounting of one embodiment of the portable rail cart of the present invention;

fig. 13 is a schematic view of an assembly structure of a wheel set mounting plate and a positioning locking plate in an embodiment of the portable rail car of the present invention;

fig. 14 is a schematic view of the mounting structure of the wheel set mounting plate and the positioning locking plate on the wheel axle according to the embodiment of the portable small rail car of the present invention;

fig. 15 is a schematic structural view of the portable rail car according to the embodiment of the present invention after the wheel set mounting plate and the positioning locking plate are assembled;

fig. 16 is a schematic view of a partial cross-sectional structure of a wheel set assembly structure according to an embodiment of the portable rail car of the present invention;

fig. 17 is a schematic view of a partial cross-sectional structure of a wheel set mounting plate and a positioning locking plate mounted on a wheel axle according to an embodiment of the present invention;

fig. 18 is a schematic side sectional view of the wheel set mounting plate and the positioning lock plate mounted on the wheel axle according to the embodiment of the present invention;

fig. 19 is a schematic view of another embodiment of the portable trolley of the invention;

fig. 20 is a schematic cross-sectional view of another mounting plate of an embodiment of the portable rail car of the present invention;

fig. 21 is a schematic side sectional view of another mounting plate of an embodiment of the portable trolley of the invention;

FIG. 22 is a top view of another alternative mounting plate of an embodiment of the portable trolley of the invention;

fig. 23 is a bottom view of another mounting plate of an embodiment of the portable trolley of the invention;

fig. 24 is a schematic top view of another wheel set mounting plate according to an embodiment of the present invention;

fig. 25 is a schematic cross-sectional view of a positioning locking plate according to an embodiment of the present invention;

fig. 26 is a bottom view of the positioning lock plate in an embodiment of the portable rail car of the present invention; FIG. 27 is a schematic view of the portable rail car in the on-track state in one embodiment of the method for quickly getting off the track of the portable rail car of the present invention;

fig. 28 is a schematic diagram of a fence removing step in an embodiment of the method for quickly descending a portable rail car of the present invention;

fig. 29 is a schematic view of a front seat removal step in an embodiment of the method for quickly getting off a portable rail car of the present invention;

FIG. 30 is a schematic view of a rear seat removal step in an embodiment of the portable rail car quick descent method of the present invention;

fig. 31 is a schematic diagram of a frame and wheel pair separation step in one embodiment of the portable rail car rapid descent method of the present invention;

fig. 32 is a schematic view of a wheel set descending step in an embodiment of the portable rail car quick descending method of the present invention;

in the figure: 1-vehicle frame, 2-driving wheel pair, 3-driven wheel pair, 4-rail, 5-front seat, 6-rear seat, 7-control box, 8-wheel shaft, 9-wheel, 10-operation table, 100-portable rail trolley, 11-pressure plate, 111-opening, 112-guide groove, 113-first screw, 12-installation bottom plate, 121-positioning convex rib, 122-first through hole, 123-first positioning boss, 124-first fastening screw hole, 13-wheel pair installation plate, 130-positioning clamping groove, 131-protrusion, 132-positioning step, 133-second through hole, 134-first lightening groove, 135-second lightening groove, 136-first counter bore, 14-positioning locking plate, 141-a second positioning boss, 142-a third positioning boss, 143-a fourth positioning boss, 144-a second counter sink, 145-a third counter sink, 146-a third weight-reducing groove, 147-a first positioning groove, 148-a fourth counter sink, 149-a third through hole, 15-a supporting positioning plate, 151-a second positioning groove, 152-a third positioning groove, 153-a reinforcing rib, 154-a second fastening screw hole, 155-a fifth counter sink, 16-a locking bolt, 17-a positioning pin, 18-a set screw, 19-a fastening screw, 20-a locking nut, 21-an anti-release screw, 22-a second screw, 23-a brake disc and 24-a motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 32, the present invention provides a portable rail car according to an embodiment of the present invention, and the present invention will be further described with reference to the accompanying drawings and the embodiment.

Example 1

The connection between the wheel set and the frame 1 is a core structure of a whole vehicle disassembly part, and is related to the safety of the whole vehicle operation of the portable rail trolley 100 and the convenience of the operation of the upper and lower rails, in order to improve the connection speed between the wheel set and the frame 1 and improve the efficiency of the upper and lower rails of the trolley, and simultaneously ensure the reliability of the connection between the wheel set and the frame 1, the portable rail trolley 100 described in this embodiment adopts the structure as follows.

As shown in fig. 1, 2, 6 and 7, an embodiment of a portable rail cart 100 specifically includes:

the vehicle frame 1 is used for connecting wheel pairs (comprising a driving wheel pair 2 and a driven wheel pair 3) and is used as a carrier for bearing the whole vehicle;

the fence 4 is arranged on the frame 1 and used for providing safety protection for the driving process and providing mounting support for the control box 7 and the operating platform 10; the control box 7 is internally provided with a whole vehicle driving control electric element;

a front seat 5 provided above the frame 1 for riding in a driving operation;

a rear seat 6 arranged on the frame 1 for carrying people and goods and expanding the application space;

and the driving wheel pair 2 and the driven wheel pair 3 are arranged at the bottom of the frame 1, and the driving wheel pair 2 provides driving force for the portable rail trolley 100, so that the functions of advancing, retreating, braking and parking of the whole trolley are realized. The driven wheel pair 3 provides support for walking and realizes the function of mileage measurement.

The frame 1 is also provided with a storage battery which provides power for the walking of the portable rail trolley 100.

The components above the frame 1 (including the rail 4, the front seat 5 and the rear seat 6) are matched and positioned with the frame 1 through 4 conical pins and mounting holes on the frame 1. Wherein, rail 4, front row seat 5 and back row seat 6 adopt the same structure, can guarantee good maneuverability. The taper pin hole positioning can realize automatic alignment, reduce the disassembly and assembly difficulty and improve the disassembly and assembly speed.

The quick assembly disassembly structure between drive wheel pair 2, driven wheel pair 3 and frame 1 is the same, and drive wheel pair 2 and driven wheel pair 3 pass through the quick assembly disassembly structure and install in the bottom of frame 1. The positioning structure between the wheel pair and the frame 1 is shown in fig. 3 and 4, and mainly comprises a positioning locking plate 14, a supporting positioning plate 15, a locking bolt 16 and a positioning pin 17. The supporting and positioning plate 15 is fixed on the wheel shaft 8, and the positioning and locking plate 14 is fixed on the supporting and positioning plate 15. A wedge-shaped positioning pin 17 is fixed to an end of the positioning lock plate 14 facing the wheel 9, and the positioning pin 17 serves to restrict lateral (i.e., L-direction in fig. 2 to 4) displacement of the vehicle frame 1. The upper part of the frame 1 is provided with a pressing plate 11 with an opening at one side, and a locking bolt 16 penetrates through the frame (platform) 1, and the frame 1 is locked and fixed between the pressing plate 11 and the positioning locking plate 14 through the locking bolt 16, so as to limit the vertical (the direction shown as W in the attached figure 4) displacement of the frame 1.

As a specific embodiment of the present invention, as shown in fig. 5, 8 and 9, the quick-assembly/disassembly structure mainly comprises a pressing plate 11, a mounting plate 12, a wheel-set mounting plate 13, a positioning/locking plate 14, a supporting/positioning plate 15, and the like. The driving wheel pair 2 and the driven wheel pair 3 both comprise wheel shafts 8 and wheels 9 arranged at two ends of the wheel shafts 8, and the driving wheel pair 2 is provided with a motor 24. The driving wheel pair 2 and the driven wheel pair 3 are arranged at the bottom of the frame 1 through a quick assembly disassembly structure. The quick assembly disassembly structure further comprises a pressure plate 11, a wheel pair mounting plate 13, a positioning locking plate 14, a locking bolt 16, a mounting bottom plate 12 fixed at the bottom of the vehicle frame 1, and a supporting positioning plate 15 fixed on the wheel axle 8. The mounting bottom plate 12, the wheel pair mounting plate 13 and the positioning locking plate 14 are sequentially fixed between the pressing plate 11 and the supporting and positioning plate 15 from top to bottom through the locking bolts 16.

As shown in fig. 19, an opening 111 through which the locking bolt 16 passes is formed on a side of the pressing plate 11 facing the wheel 9, and two guide grooves 112 are opened in the pressing plate 11 in parallel with each other in a lateral direction (a direction indicated by L in the drawing). The quick-release structure further comprises a first screw 113, the screw 113 penetrates through the guide slot 112 and fixes the pressure plate 11 on the mounting base plate 12, and the fixing position of the pressure plate 11 on the mounting base plate 12 is adjusted by sliding the screw 113 in the guide slot 112. The slidable pressure plate 11 is further connected with the installation bottom plate 12 through a screw 113, a washer and a positioning sleeve, and is limited to slide left and right in the guide groove 112, the sliding motion is flexible, and the sliding stroke meets the requirements of locking and dismounting.

The mounting bottom plate 12 is made of aluminum alloy material and is welded to the bottom of the frame 1. After the welding of the frame 1 and the mounting base plate 12 is completed, the whole frame 1 is annealed, and then the positioning convex ribs 121 and the first fastening screw holes 124 which are used for positioning the wheel pair mounting plate on the mounting base plate 12 are integrally processed so as to ensure the shape and position accuracy of the frame. As shown in fig. 16, 22 and 23, the mounting base plate 12 is provided with a first through hole 122 for the locking bolt 16 to pass through, the quick-release structure further includes a second screw 22, and the mounting base plate 12 is provided with a first fastening screw hole 124. The second screw 22 passes through the first fastening screw hole 124 and fixes the mounting baseplate 12 to the bottom of the vehicle frame 1. The upper surface of the mounting baseplate 12 is formed with a first positioning boss 123 fixed to the bottom of the frame 1, and the lower surface of the mounting baseplate 12 is formed with two positioning projected ridges 121 parallel to each other in the transverse direction, the positioning projected ridges 121 being located on both sides of the mounting baseplate 12 in the longitudinal direction (direction shown as H in fig. 22 and 23).

As shown in fig. 14, 15, 18 and 24, the wheel shaft 8 is provided with a brake disc 23 on one side in the axial direction. The quick assembly disassembly structure still includes wedge-shaped locating pin 17, and locating pin 17 sets up in the upper surface that the locking plate 14 is close to wheel 9 one side. The positioning pin 17 needs to be subjected to surface heat treatment during processing, and the surface hardness is HRC 40-46. The side of the wheel set mounting plate 13 facing the wheel 9 is formed with a locating slot 130 for receiving the locating pin 17. Two positioning steps 132 are transversely arranged on the upper surface of the wheel set mounting plate 13 in parallel, the positioning steps 132 are positioned on two longitudinal sides of the wheel set mounting plate 13, and a limiting structure is formed between the positioning steps 132 and the positioning convex ribs 121. The wheel set mounting plate 13 is provided with a second through hole 133 for the locking bolt 16 to pass through, the wheel set mounting plate 13 is further provided with a first countersunk hole 136, and the second screw 22 passes through the first countersunk hole 136 and the first fastening screw hole 124 and fixes the wheel set mounting plate 13 and the mounting base plate 12 to the bottom of the frame 1. As shown in fig. 24, the positioning notch 130 has a protrusion 131 formed upward, and the protrusion 131 is used to limit the lateral movement of the mounting baseplate 12 toward the wheel 9. The wheel set mounting plate 13 is made of 3Cr13, and is provided with a positioning step 132 and a positioning clamping groove 130. The relative position size of the positioning step 132 and the positioning slot 130 should ensure the stable combination and the convenient assembly and disassembly of the components of the quick assembly and disassembly structure. In order to improve the wear resistance, HRC 44-48 is adopted as the surface hardness of the positioning clamping groove 130. The wheel-set mounting plates 13 of the driving wheel set 2 and the driven wheel set 3 of the portable rail car 100 need to be simultaneously machined in the thickness direction (the direction shown as W in fig. 16 and 17) to ensure the same height. The wheel set mounting plate 13 is positioned by the positioning convex ribs 121 of the mounting base plate 12, and then is connected with the frame 1 and the mounting base plate 12 by the second screws 22.

As shown in fig. 13, the quick-release structure further includes a fastening screw 19, a second fastening screw hole 154 is formed on the supporting and positioning plate 15, and the fastening screw 19 passes through the second fastening screw hole 154 and fixes the supporting and positioning plate 15 on the axle 8. The upper surface of the supporting and positioning plate 15 has a second positioning groove 151 formed along the transverse direction, and the upper surface of the supporting and positioning plate 15 has a third positioning groove 152 formed along the longitudinal direction. A reinforcing rib 153 is arranged between the bottom of the supporting and positioning plate 15 and the wheel shaft 8.

As shown in fig. 13, 17, 25 and 26, the positioning and locking plate 14 is provided with a fourth countersunk hole 148 for accommodating a bolt head of the locking bolt 16, and the mounting base plate 12 and the wheelset mounting plate 13 are fixed between the pressing plate 11 and the positioning and locking plate 14 by the locking bolt 16. The upper surface of the positioning locking plate 14 close to the wheel 9 is provided with a first positioning groove 147, and the first positioning groove 147 is provided with a second counter sink 144. The quick-dismounting structure further comprises a set screw 18, the set screw 18 penetrates through the second counter bore 144 and fixes the positioning pin 17 in the first positioning groove 147, and the positioning pin 17 limits the transverse movement of the wheel to the mounting plate 13. The positioning and locking plate 14 is further provided with a third countersunk hole 145, and the fastening screw 19 passes through the third countersunk hole 145 and the second fastening screw hole 154, and fixes the positioning and locking plate 14 and the supporting and positioning plate 15 on the axle 8. As a specific embodiment of the utility model, third counter sink 145 adopts the bell mouth structure, can realize automatic alignment location to reduce the dismouting degree of difficulty, improve dismouting speed. A second positioning boss 141 is formed on the lower surface of the positioning and locking plate 14 along the longitudinal direction, and a limiting structure is formed between the second positioning boss 141 and the second positioning groove 151. A third positioning boss 142 and a fourth positioning boss 143 are formed on the lower surface of the positioning and locking plate 14 along the transverse direction, and a limiting structure is formed between the third positioning boss 142 and the third positioning groove 152 and between the fourth positioning boss 143 and the third positioning groove 152. The bottom of the positioning locking plate 14 is provided with a second positioning boss 141, which is matched with a second positioning groove 151 formed in the supporting and positioning plate 15 on the axle 8, so as to position the positioning locking plate 14. The positioning and locking plates 14 of the driving wheel pair 2 and the driven wheel pair 3 of the portable rail car 100 need to be simultaneously machined in the thickness direction (the direction shown as W in fig. 16 and 17) to ensure the same height. After the positioning and locking plate 14 is assembled, the positioning and locking plate is fastened on the supporting and positioning plate 15 of the wheel shaft 8 by a fastening screw 19 and a nut.

As shown in fig. 13, the quick-release structure further includes a lock nut 20 and an anti-separation screw 21, wherein the lock nut 20 is fastened to the tail of the lock bolt 16 for fixing the pressure plate 11. The anti-escape screw 21 is fastened to an opening in the rear of the lock bolt 16 to prevent the lock nut 20 from escaping from the lock bolt 16. A gap H is left between the top surface of the lock nut 20 and the bottom surface of the screw head of the anti-falling screw 21. In the exemplary embodiment of the present invention, the locking bolt 16 is formed by machining a hexagon head bolt with a thread specification of M16 and a level of 8.8 or more. The locking nut 20 is a hexagonal flange nut to increase the contact area during locking and has a good anti-loosening effect. The locking bolt 16 is installed into the positioning and locking plate 14 and then the bolt head is spot welded and ground flat to prevent falling off. The length of the lock bolt 16 is controlled so that a gap of about 2mm is maintained between the lock nut 20 and the anti-drop screw 21 after locking, thereby facilitating quick assembly and disassembly. When disassembling, only need loosen lock nut 201 ~ 2 circles, alright remove one side open-ended clamp plate 11 to realize the separation of wheel pair and frame 1.

As shown in fig. 24 and 25, as a preferred embodiment of the present invention, the wheel-set mounting plate 13 is provided with a first lightening slot 134 and a second lightening slot 135, and the first lightening slot 134 and the second lightening slot 135 are respectively located at two lateral sides of the second through hole 133 along the wheel-set mounting plate 13. A third lightening slot 146 is formed on the positioning and locking plate 14, and the third lightening slot 146 is positioned between the first positioning slot 147 and the fourth counter sink 148.

As another variation of this embodiment, the positioning and locking plate 14 is provided with a third through hole 149 through which the locking bolt 16 passes, as shown in fig. 12. The support positioning plate 15 is provided with a fifth countersunk hole 155 for receiving the bolt head of the locking bolt 16, as shown in fig. 13. The mounting bottom plate 12, the wheelset mounting plate 13 and the positioning locking plate 14 are fixed between the pressing plate 11 and the supporting and positioning plate 15 through locking bolts 16. The third lightening slot 146 is located between the first positioning slot 147 and the third through hole 149.

It should be particularly noted that in this embodiment, the driving wheel pair 2, the driven wheel pair 3 and the frame 1 adopt a connection structure with separated positioning and locking functions, and positioning is achieved by matching the positioning slot 130 on the outer side of the frame 1 with the positioning pin 17 on the wheel pair in positioning, which is an optimal structural manner. However, the quick-release structure can also adopt a structure with the equivalent functions of pin/hole, key/groove and the like to realize positioning. Similarly, in this embodiment, the frame 1, the driving wheel pair 2, and the driven wheel pair 3 are locked by the fastening bolt 16+ the pressing plate 11, and may be clamped by other similar structures such as a quick clamp and a cam. The above structural solutions for achieving the same positioning and clamping functions should be regarded as alternatives to the present embodiment.

In the portable rail trolley 100 described in this embodiment, the quick-dismounting structure between the driving wheel set 2, the driven wheel set 3 and the frame 1 is based on a multi-component combined structure of wheel set separation, and is applied to short-distance industrial transportation and rail engineering operation, under the condition without using an external auxiliary device, two workers can quickly assemble and disassemble the rail trolley to quickly get on and off the track at any place on a line, and manually carry the rail trolley to quickly get on and off the track in a short time, so that the technical problems of difficulty, long time consumption, high labor intensity and the like of a light rail trolley are solved, and the application range of the light rail trolley can be further expanded. The portable rail trolley 100 described in this embodiment has a traveling power, can run on a steel rail at a certain speed, meets a certain endurance mileage requirement, and has a carrying capacity for people carrying objects, the trolley is divided into a plurality of parts by means of quick connection and disassembly, the weight of a single part is controlled in a range that two people can easily carry the portable rail trolley (about 60 kg), and each part after the whole trolley is disassembled is shown in fig. 6.

Example 2

As shown in fig. 27 to 32, a method for descending a portable rail car 100 according to embodiment 1 includes the following steps:

s20) removing the enclosure 4, the control box 7, the front seat 5, the battery and the rear seat 6 arranged on the frame 1 and carrying them out of the track;

s21) loosening the locking bolts 16 for fixing the frame 1 and the wheel shaft 8, and removing the pressure plate 11 fixed above the bottom of the frame 1, wherein the wheel pair and the frame 1 can be separated;

s22) removing the driving wheel pair 2 and the driven wheel pair 3 according to the steps S20) -S21), and moving the frame 1, the driving wheel pair 2 and the driven wheel pair 3 away from the track to finish the whole vehicle disassembly of the portable rail trolley 100.

A method for boarding a portable rail car 100 as described in example 1, comprising the steps of:

s10) carrying the driving wheel pair 2 and the driven wheel pair 3 above a track, adjusting the wheel base to a proper position, and completing the installation of the driving wheel pair 2 and the driven wheel pair 3 with the frame 1 according to the following steps S11) -S13);

s11) mounting the support positioning plate 15 on the wheel axle 8, and mounting the positioning locking plate 14 fixed with the locking bolt 16 on the support positioning plate 15;

s12) sequentially mounting the mounting bottom plate 12 and the wheel set mounting plate 13 on the positioning locking plate 14 from top to bottom;

s13) arranging a pressure plate 11 at the bottom of the frame 1, fixing the mounting bottom plate 12 and the wheel set mounting plate 13 between the pressure plate 11 and the positioning locking plate 14 through the locking bolt 16 and tightening;

s14), and then sequentially mounting a rear-row seat 6, a front-row seat 5, a storage battery, a fence 4 and a control box 7 on the frame 1, so as to finish the whole vehicle assembly of the portable rail trolley 100 and meet the requirement of online operation.

The track inspection trolley descending method described in embodiment 2 is based on a multi-component combined structure formed by splitting wheel sets, and can be used for decomposing the portable track inspection trolley 100 into a plurality of components in a quick connection and disassembly mode without using an external tool, so that the portable track inspection trolley 100 can be disassembled and descended or assembled in an extremely short time. The track inspection trolley descending method described in embodiment 2 can cope with various emergency situations by rapidly ascending and descending the track inspection trolley, and two persons can finish disassembling and descending the track inspection trolley 100 or assembling and ascending the track inspection trolley in three minutes without using an external tool, so that the operation cost can be greatly reduced, and the operation efficiency can be improved.

Through implementing the utility model discloses portable small rail car's that concrete embodiment described technical scheme can produce following technological effect:

the utility model discloses portable small rail car of embodiment description adopts the multicomponent combination formula body construction based on the wheel pair split, under the prerequisite that satisfies the functional requirement, controls single component weight at lighter within range to can disassemble whole car fast in the short time for a plurality of light widgets of weight, and realize the transport of upper and lower way, dismouting process labour saving and time saving has solved the technical problem of the difficult way of lower way of dolly under the short distance line condition, has promoted the practicality of dolly, has expanded the range of application.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A portable rail trolley, comprising:

a frame (1);

the seat comprises a fence (4), a front row seat (5) and a rear row seat (6) which are arranged on the frame (1);

a control box (7) and an operating platform (10) which are arranged on the fence (4);

and the driving wheel pair (2) and the driven wheel pair (3) are arranged at the bottom of the frame (1), the driving wheel pair (2) provides driving force for the portable rail trolley (100), and the driven wheel pair (3) provides support for the walking of the portable rail trolley (100).

2. The portable rail trolley of claim 1, wherein: the driving wheel pair (2) and the driven wheel pair (3) respectively comprise a wheel shaft (8) and wheels (9) arranged at two ends of the wheel shaft (8); the driving wheel pair (2) and the driven wheel pair (3) are arranged at the bottom of the frame (1) through a quick assembly and disassembly structure; the quick dismounting structure comprises a pressing plate (11), a wheel pair mounting plate (13), a positioning locking plate (14), a locking bolt (16), a mounting bottom plate (12) fixed at the bottom of the frame (1), and a supporting positioning plate (15) fixed on the wheel axle (8); the mounting bottom plate (12), the wheel set mounting plate (13) and the positioning locking plate (14) are sequentially fixed between the pressing plate (11) and the supporting and positioning plate (15) from top to bottom through the locking bolt (16).

3. The portable rail trolley according to claim 2, wherein: an opening (111) for a locking bolt (16) to penetrate through is formed in one side, facing the wheel (9), of the pressing plate (11), and two guide grooves (112) are formed in the pressing plate (11) in parallel along the transverse direction; the quick dismounting structure further comprises a first screw (113), the first screw (113) penetrates through the guide groove (112) and fixes the pressure plate (11) on the mounting bottom plate (12), and the fixed position of the pressure plate (11) on the mounting bottom plate (12) is adjusted through sliding of the first screw (113) in the guide groove (112).

4. The portable rail trolley according to claim 2 or 3, wherein: the mounting base plate (12) is provided with a first through hole (122) for a locking bolt (16) to pass through, the quick dismounting structure further comprises a second screw (22), and the mounting base plate (12) is provided with a first fastening screw hole (124); the second screw (22) penetrates through the first fastening screw hole (124) and fixes the mounting base plate (12) to the bottom of the frame (1); the upper surface of mounting plate (12) be formed with fixed first location boss (123) in frame (1) bottom, the lower surface of mounting plate (12) is formed with two location bead (121) along transversely being parallel to each other, location bead (121) are located mounting plate (12) along longitudinal both sides.

5. The portable rail trolley of claim 4, wherein: the quick dismounting structure further comprises a positioning pin (17), and the positioning pin (17) is arranged on the upper surface of the positioning locking plate (14) close to one side of the wheel (9); a positioning clamping groove (130) for accommodating a positioning pin (17) is formed in one side, facing the wheel (9), of the wheel set mounting plate (13); two positioning steps (132) are arranged on the upper surface of the wheel set mounting plate (13) in parallel along the transverse direction, the positioning steps (132) are positioned on two sides of the wheel set mounting plate (13) along the longitudinal direction, and a limiting structure is formed between each positioning step (132) and each positioning convex rib (121); offer the confession on wheel pair mounting panel (13) second through-hole (133) that locking bolt (16) passed, first counter sink (136) have still been seted up on wheel pair mounting panel (13), second screw (22) pass first counter sink (136) and first fastening screw (124) to be fixed in wheel pair mounting panel (13) and mounting plate (12) the bottom of frame (1).

6. The portable rail trolley of claim 5, wherein: the positioning clamping groove (130) is provided with a protruding part (131) towards the upper part, and the protruding part (131) is used for limiting the transverse movement of the mounting bottom plate (12) towards one side of the wheel (9).

7. The portable rail trolley according to claim 5 or 6, wherein: the quick dismounting structure further comprises a fastening screw (19), a second fastening screw hole (154) is formed in the supporting positioning plate (15), the fastening screw (19) penetrates through the second fastening screw hole (154), and the supporting positioning plate (15) is fixed on the wheel shaft (8); a fifth counter bore (155) for accommodating a bolt head of a locking bolt (16) is formed in the supporting and positioning plate (15); the upper surface of the supporting positioning plate (15) is transversely provided with a second positioning groove (151), and the upper surface of the supporting positioning plate (15) is longitudinally provided with a third positioning groove (152); and a reinforcing rib (153) is arranged between the bottom of the supporting and positioning plate (15) and the wheel shaft (8).

8. The portable rail trolley of claim 7, wherein: a third through hole (149) for a locking bolt (16) to pass through is formed in the positioning and locking plate (14), and the mounting bottom plate (12), the wheel set mounting plate (13) and the positioning and locking plate (14) are fixed between the pressing plate (11) and the supporting and positioning plate (15) through the locking bolt (16); a first positioning groove (147) is formed in the upper surface of the positioning locking plate (14) close to one side of the wheel (9), and a second counter sink (144) is formed in the first positioning groove (147); the quick dismounting structure further comprises a set screw (18), the set screw (18) penetrates through the second counter bore (144) and fixes the positioning pin (17) in the first positioning groove (147), and the positioning pin (17) limits the transverse movement of the wheel to the mounting plate (13); a third counter bore (145) is further formed in the positioning and locking plate (14), the fastening screw (19) penetrates through the third counter bore (145) and the second fastening screw hole (154), and the positioning and locking plate (14) and the supporting and positioning plate (15) are fixed on the wheel shaft (8); a second positioning boss (141) is formed on the lower surface of the positioning and locking plate (14) along the longitudinal direction, and a limiting structure is formed between the second positioning boss (141) and the second positioning groove (151); the lower surface of the positioning locking plate (14) is transversely provided with a third positioning boss (142) and a fourth positioning boss (143), and a limiting structure is formed between the third positioning boss (142) and the third positioning groove (152) and between the fourth positioning boss (143) and the third positioning groove (152).

9. The portable rail trolley of claim 8, wherein: a first weight-reducing groove (134) and a second weight-reducing groove (135) are formed in the wheel set mounting plate (13), and the first weight-reducing groove (134) and the second weight-reducing groove (135) are respectively located on two sides of the second through hole (133) in the transverse direction of the wheel set mounting plate (13); a third lightening groove (146) is formed in the positioning locking plate (14), and the third lightening groove (146) is located between the first positioning groove (147) and the third through hole (149).

10. The portable rail cart of claim 2, 3, 5, 6, 8, or 9, wherein: the quick dismounting structure also comprises a locking nut (20) and an anti-disengagement screw (21), wherein the locking nut (20) is fastened at the tail part of the locking bolt (16) and is used for fixing the pressure plate (11); the anti-stripping screw (21) is fastened in an opening at the tail part of the locking bolt (16) to prevent the locking nut (20) from being stripped from the locking bolt (16); and a gap is reserved between the top surface of the locking nut (20) and the bottom surface of the screw head of the anti-falling screw (21).