CN111847274B - Switch rail changing operation vehicle and rail changing method - Google Patents
Switch rail changing operation vehicle and rail changing method Download PDFInfo
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- CN111847274B CN111847274B CN202010728640.XA CN202010728640A CN111847274B CN 111847274 B CN111847274 B CN 111847274B CN 202010728640 A CN202010728640 A CN 202010728640A CN 111847274 B CN111847274 B CN 111847274B
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- flatcar
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- suspension arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
- E01B29/22—Raising rails from sleepers, e.g. for inserting sole-plates
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a turnout rail changing operation vehicle and a rail changing method, and belongs to the technical field of rail maintenance. The operation vehicle comprises two tractors, and a first flatcar, a traveling car, a second flatcar and a third flatcar which are sequentially arranged between the two tractors, wherein a hoisting device is arranged on the flatcar, the hoisting device comprises a suspension arm, a suspension arm support, a lifting hoisting structure and a balancing weight, the suspension arm support can move on the flatcar, the suspension arm can rotate at least 180 degrees around the suspension arm support, and an extension arm is hinged to the suspension arm support; the combination of the first flat car, the traveling car and the second flat car can transport turnouts and move to corresponding turnouts when the turnouts are loaded and unloaded, and the first flat car and the hoisting device on the second flat car are matched to realize the loading and unloading of the turnouts. The second flat wagon and the third flat wagon are separated and respectively moved to two ends of a turnout to be replaced, the suspension arm on the second flat wagon is reversed, and the lifting devices on the second flat wagon and the third flat wagon are matched to realize the replacement of the turnout; the hoisting devices on the second and third trolleys are both moved to one end close to each other.
Description
Technical Field
The invention belongs to the technical field of rail maintenance, and particularly relates to a turnout rail changing operation vehicle and a rail changing method.
Background
The vigorous development of high-speed rail in China has been in nearly 15 years, and the operation mileage reaches 2.9 kilometers by the end of 2018. As operating time goes on, the high-speed rail line equipment will also enter a replacement cycle. In addition to the routine maintenance of the line, the mass replacement of high-speed rail turnout components will enter a whitening stage. At present, domestic high-speed railway turnouts are mainly 18 # and 42 # in general. Taking switch No. 42 as an example, the movable point rail frog is about 31 meters long and weighs about 14 tons, the single point rail is about 45 meters long, and the stock rail is 46 meters long. The length and the weight become difficult problems of transportation, loading and unloading in the process of replacing the high-speed railway turnout, are limited by the construction conditions of the replacing site, and the site loading and unloading operation becomes the main difficulty in the replacing operation. In 2018, a GQ50 type turnout large part quick replacement vehicle is developed by combining Jinying heavy engineering machinery Limited company and Sichuan long-lift hoisting equipment Limited company, and the integrated functions of assembling, disassembling and transporting high-speed railway turnout parts can be realized. However, the cost of the transportation equipment is as high as more than 1000 ten thousand yuan, and the transportation equipment is influenced by financial resources, the purchasing capacity of each railway bureau is very limited, and few loading and unloading transportation equipment become the restriction factor of turnout replacement. In order to solve the problem, the design of the device which has the functions of loading, unloading and transporting and has low cost is urgent.
Disclosure of Invention
In order to solve the above problems, embodiments of the present invention provide a switch rail-changing operation vehicle and a rail-changing method, which only require three flat cars with lifting devices and one conventional traveling car to implement switch rail-changing operation, and are low in cost. The technical scheme is as follows:
on one hand, the embodiment of the invention provides a turnout track-changing operation vehicle, which comprises two tractors 1 and at least one flatcar between the two tractors 1, wherein a hoisting device 2 is arranged on the flatcar, the hoisting device 2 comprises a suspension arm 3, a suspension arm support 4 which is arranged on the flatcar and is used for supporting the suspension arm 3, a lifting hoisting structure 5 which is arranged on one side of the suspension arm 3 and can move along the suspension arm 3, and a counterweight 6 which is arranged on the other side of the suspension arm 3 and can move along the suspension arm 3; the turnout rail changing operation vehicle comprises three flatcars, and further comprises a traveling block 8 without a hoisting device 2, wherein a first flatcar 7, the traveling block 8, a second flatcar 9 and a third flatcar 10 are sequentially arranged between the two tractors 1, the suspension arm support 4 can move on the flatcars along the direction of the flatcars, the suspension arm 3 can rotate at least 180 degrees around the suspension arm support 4, and a foldable and openable extension arm 11 is hinged to the suspension arm support.
Wherein the switch comprises a movable point frog, a point rail and a stock rail and is provided with two lifting points 17.
The combination of the first flat car 7, the traveling car 8 and the second flat car 9 can transport turnouts and move to corresponding turnouts when turnouts are loaded and unloaded, and the first flat car 7 is matched with the hoisting device 2 on the second flat car 9 to realize loading and unloading of turnouts; wherein the hoisting devices 2 of the first and second carriages 7, 9 are moved to an end remote from the trolley 8 when hoisting the point rail and the stock rail.
The second flatcar 9 and the third flatcar 10 are separated and respectively moved to two ends of a turnout to be replaced, the suspension arm 3 on the second flatcar 9 is reversed, and the lifting devices 2 on the second flatcar 9 and the third flatcar 10 are matched to realize the replacement of the turnout; wherein the lifting devices 2 on the second and third trolleys 9, 10 are moved to one end close to each other.
When the hoisting device 2 hoists the movable point rail frog, the extension arm 11 is folded; when the hoisting device 2 hoists the switch rail and the stock rail, the extension arm 11 is unfolded.
Wherein, the length L1 of one side of the boom 3 in the embodiment of the present invention is:
wherein L0 is D + E, D is the distance between the lifting point 17 on the movable point frog and the corresponding end, E is the radius of the boom support 4, a is half of the width of the flatcar, B is the distance between the switch and the flatcar, and C is half of the widest width of the movable point frog; the length L2 of the other side of the suspension arm 3 is 4.5-5.5m, and the length L4 of the extension arm 11 is 3-5 m; the weight G2 of the counterweight 6 is obtained from a formula G1 × L1- (F + G) × L3 ═ G2 × L2, G1 is the weight of the lifting point 17 of the movable point frog, L3 is the vertical distance from the center of the boom support 4 to the wheel rim of the flatcar, F is the weight of the flatcar, and G is the weight of the hoisting device 2.
Furthermore, a slide rail 12 for the boom support 4 to slide is arranged on the flatcar in the embodiment of the present invention along the direction of the flatcar, the boom support 4 is arranged on the slide rail 12 in a sliding manner, and a traveling structure is arranged between the boom support and the slide rail 12.
Specifically, the length L1 of one side of the boom 3 in the embodiment of the present invention is 7.5 to 8.5m, the weight G2 of the counterweight 6 is 8 to 10t, the weight F of the platform car is 22 to 24t, the weight G of the hoisting device 2 is 4 to 6t, the distance B between the turnout and the platform car is 0.15 to 0.25m, and the distance D between the lifting point 17 on the movable point frog and the corresponding end is 6.2 to 7.7 m.
The lengths of the first flatcar 7, the traveling flatcar 8, the second flatcar 9 and the third flatcar 10 in the embodiment of the invention are all larger than 15.4 m.
Specifically, the first carriage 7, the second carriage 9, and the third carriage 10 in the embodiment of the present invention each have a length of 1.5 times longer and a width of 3 m.
More specifically, the length L1 of one side of the boom 3 in the embodiment of the present invention is 8m, and the length L2 of the other side thereof is 5 m; the length L4 of the extension arm 11 is 4m, and the weight G2 of the counterweight 6 is 9 t.
On the other hand, the embodiment of the invention also provides a rail changing method for switch rail changing, which adopts the switch rail changing operation vehicle, and the method comprises the following steps:
loading a new turnout: the new switch is placed on the combination of the first carriage 7, the travelling carriage 8 and the second carriage 9.
Unloading the new turnout: aligning a new turnout on the operation vehicle with a turnout to be replaced, and matching the hoisting devices 2 of the first flatcar 7 and the second flatcar 9 to hoist the new turnout on the operation vehicle to the side of the operation vehicle; wherein the lifting devices 2 of the first platform wagon 7 and the second platform wagon 9 are moved to the end of the platform wagon remote from the runner wagon 8 when lifting a new point rail 15 or a new base rail 16.
Replacement of a new turnout: the second flatcar 9 and the third flatcar 10 are separated and respectively moved to two ends of a turnout to be replaced; the hoisting devices 2 on the second flatcar 9 and the third flatcar 10 move to one end close to a turnout to be replaced, and the suspension arm 3 on the second flatcar 9 rotates reversely; and the hoisting devices 2 on the second flat wagon 9 and the third flat wagon 10 are matched to hoist the turnout to be replaced to the other side of the operation vehicle, and then hoist the new turnout to the installation position.
Wherein, when the suspension arm 3 hoists a switch rail or a stock rail, the extension arm 11 is unfolded; when lifting the movable point frog, the extension arm 11 is folded.
Further, the method further comprises the following steps after the new turnout is replaced:
loading the replaced turnout: after the new turnout is replaced, the first flatcar 7, the traveling block 8 and the second flatcar 9 are combined and moved to the replaced turnout, the suspension arm 3 on the second flatcar 9 is reversed, and the lifting devices 2 of the first flatcar 7 and the second flatcar 9 are matched to lift the replaced turnout to the combination of the first flatcar 7, the traveling block 8 and the second flatcar 9.
The turnout is provided with two lifting points 17, the two lifting points 17 are respectively connected with lifting hoisting structures 5 of hoisting devices 2 on two flatcars, and the distance between each lifting point 17 and the corresponding end is 1/5-1/4 of the length of each lifting point; the turnout is arranged at a position 0.15-0.25m beside the flat car.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a turnout track changing operation vehicle and a track changing method, which can realize turnout track changing operation only by three flat vehicles with hoisting devices and one conventional traveling vehicle and have low cost.
Drawings
Fig. 1 is a schematic structural diagram of a turnout rail changing operation vehicle provided by the embodiment when the turnout is transported;
fig. 2 is a schematic structural diagram of the turnout rail changing operation vehicle provided by the embodiment when the turnout is changed;
FIG. 3 is a schematic diagram of the configuration of the first, carriage and second carriage combination during loading of the movable point frog;
FIG. 4 is a schematic view of the configuration of the first flatcar, the carriage and the second flatcar combination when the stock rail is loaded;
FIG. 5 is a schematic structural view of a flatcar, hoist and movable point rail frog assembly;
FIG. 6 is a schematic view of the combination of the boom and the extension arm;
fig. 7 is a layout of lifting points on a movable point frog.
In the figure: the device comprises a tractor 1, a hoisting device 2, a hoisting arm 3, a hoisting arm 4, a hoisting arm support 5, a lifting hoisting structure 6, a balancing weight 7, a first flat car 8, a second flat car 9, a third flat car 10, a lengthening arm 11, a sliding rail 12, a new movable point rail frog 13, a movable point rail frog 14 to be replaced, a new point rail 15, a new basic rail 16 and a hoisting point 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 7, embodiment 1 provides a switch rail-changing working vehicle, which includes two tractors 1 and three flatcars and a traveling block between the two tractors 1, a first flatcar 7, a traveling block 8, a second flatcar 9, and a third flatcar 10 are sequentially arranged between the two tractors 1, the flatcar is provided with a hoisting device 2, the traveling block 8 is not provided with the hoisting device 2, the first flatcar 7 and the second flatcar 9 play a role in hoisting and transportation, the traveling block 8 plays a role in transportation, the third flatcar 10 plays a role in hoisting, the first flatcar 7, the traveling block 8, the second flatcar 9, and the third flatcar 10 can be standard flatcars, but the lengths thereof need to meet the transportation requirements. The hoisting device 2 comprises a boom 3, a boom support 4 which is arranged on the flatcar and used for supporting the boom 3, a lifting hoisting structure 5 which is arranged on one side of the boom 3 (one side of the boom support 4) and can move along the boom 3, a counterweight block 6 which is arranged on the other side of the boom 3 (the other side of the boom support 4) and can move along the boom 3, and the like; wherein, hoist device 2's structure is unanimous with prior art, requires in this embodiment: the boom support 4 can be moved on the flatcar in the direction of the flatcar, and the boom 3 can be rotated at least 180 ° around the boom support 4 (at least the second flatcar 9 and the third flatcar 10) and is hinged (by means of a hinged connection (preferably capable of bearing a weight of more than 2 t) to a reinforcing structure) with an extension arm 11 that can be folded and unfolded. In particular, the boom support 4 is generally a vertically disposed cylindrical structure that can rotate the boom 3. Lifting and hoisting structure 5 and balancing weight 6 are unanimous with conventional technique, and balancing weight 6 is used for balancing its weight when 3 one sides of davit hoist and mount switches of davit and avoids the car turnover, and balancing weight 6 can be according to lifting and hoisting structure 5's position and lifting weight, the distance between self-regulated and davit support 4, and this technique is conventional technique, so the detailed description is omitted to this embodiment. In which the switch comprises a movable point frog (shorter, but heavy), a point rail (longer, light) and a stock rail (longer, light) and on which two lifting points 17 are provided. The movable point rail frog is nearly 31 meters long and weighs about 14 tons; the length of a single switch rail is nearly 45 meters, and the length of a stock rail is 46 meters. When the positions of the lifting points 17 require to hoist the turnout, the turnout can be basically horizontal, the weights of the two lifting points 17 are almost the same, and the distance between the lifting points 17 and the corresponding end is matched with the length of one side of the suspension arm 3 (or the combination of one side of the suspension arm 3 and the suspension arm 11).
The combination of the first flat wagon 7, the traveling wagon 8 and the second flat wagon 9 in the embodiment can transport turnouts and move to corresponding turnouts when the turnouts are loaded and unloaded; specifically, the sum of the distances between the first flatcar 7, the traveling carriage 8, the second flatcar 9 and the adjacent vehicle bodies is preferably greater than the length of the stock rail; the movable point rail frog, the switch rail and the stock rail are arranged on the working vehicle side by side. The first flatcar 7 is matched with the hoisting device 2 on the second flatcar 9 to realize the loading and unloading of the turnout; specifically, one side (the side having the lifting and lowering structure 5, the same side) of the lifting and lowering device 2 of the first flatcar 7 faces the turnout, the lifting and lowering structure 5 on the first flatcar is connected with one lifting point 17 on the same side of the turnout, and one side of the lifting and lowering device 2 of the second flatcar 9 faces the turnout, and the lifting and lowering structure 5 on the second flatcar is connected with the other lifting point 17 on the same side of the turnout. Wherein, because the switch rail and the stock rail are longer, the hoisting devices 2 of the first flat carriage 7 and the second flat carriage 9 move to one end far away from the traveling block 8 when hoisting the switch rail and the stock rail so as to ensure hoisting; when the lifting devices 2 of the first flatcar 7 and the second flatcar 9 lift the movable point rail frog, the lifting devices 2 can adjust the positions as required due to the fact that the movable point rail frog is short. Further, in the foregoing process, the first flatcar 7 is separated from the tractor 1 on the corresponding side, and the separated tractor 1 is far away from the first flatcar 7 to ensure that the hoisting device 2 on the first flatcar 7 operates.
The second flat car 9 and the third flat car 10 are separated and respectively moved to two ends of a turnout to be replaced (driven by the tractor 1), and when the turnout is to be replaced and disassembled, the second flat car 9 and the third flat car 10 are both away from the corresponding end of the turnout for a certain distance, so that the disassembly and assembly operation of a person is facilitated; during the hoisting operation, the second carriage 9 and the third carriage 10 are moved to be adjacent to the corresponding ends of the turnout. The boom 3 on the second flatcar 9 is inverted (e.g. rotated 180 degrees only once) with one side towards the switch to be replaced and the lifting device 2 on the third flatcar 10 with one side also towards the switch to be replaced. The lifting devices 2 on the second and third trolleys 9 and 10 cooperate to realize the switch replacement (such as the aforementioned lifting of two lifting points 17 respectively). Wherein the lifting devices 2 on the second and third flatcars 9, 10 are moved to one end close to each other to ensure the lifting of the turnout therebetween.
Wherein, when the hoisting device 2 hoists the movable point rail frog, the extension arm 11 is folded. When the hoisting device 2 hoists the switch rail and the stock rail, the extension arm 11 is unfolded to extend the length of one side of the boom 3.
Further, in the process of the operation of the flat car, the hoisting device 2 returns to ensure that the flat car does not turn over and is connected with the tractor in the motion process.
The length L1 (the movable point frog is very heavy and is calculated by the movable point frog) of one side of the boom 3 in the embodiment of the present invention is:
where L0 is D + E, D is the distance between the lifting point 17 (where one, two lifting points 17 may be symmetrically disposed at the midpoint of the switch) on the movable point rail frog and the corresponding end, E is the radius of the boom support 4, a is half the width of the flatcar, B is the distance between the switch and the flatcar, and C is half the widest width of the movable point rail frog. In the embodiment, the length L2 of the other side of the suspension arm 3 is set to be 4.5-5.5m, and the length L4 of the extension arm 11 is set to be 3-5m (to ensure that the hoisting device 2 can hoist the switch rail and the stock rail when being located at the end of the flat car), so as to ensure the good operation of the suspension arm 3, the size matching with the flat car, and the turnout hoisting. The weight G2 of the counterweight 6 is obtained from a formula G1 × L1- (F + G) × L3 ═ G2 × L2, G1 is the weight of the lifting point 17 of the movable point frog, L3 is the vertical distance from the center of the boom support 4 to the wheel rim of the flatcar, F is the weight of the flatcar, and G is the weight of the hoisting device 2.
Further, referring to fig. 3-5, the flatcar according to the embodiment of the present invention is provided with a slide rail 12 along the direction of the flatcar, the boom support 4 is slidably disposed on the slide rail 12, and a walking structure is disposed between the boom support 4 and the slide rail 12.
Specifically, the length L1 of one side of the boom 3 in the embodiment of the invention is 7.5-8.5m, the weight G2 of the counterweight 6 is 8-10t, the weight F of the flatcar is 22-24t, the weight G of the hoisting device 2 is 4-6t (specifically 5t), the distance B between the turnout and the flatcar is 0.15-0.25m (specifically 0.2m) to facilitate the hoisting operation, and the distance D between the hoisting point 17 (two) on the movable point rail frog and the corresponding end is 6.2-7.7m (specifically 7 m).
The lengths of the first flatcar 7, the second flatcar 9, the third flatcar 10, the third flatcar 8 and the third flatcar are all larger than 15.4 m.
Specifically, the first flatcar 7, the traveling carriage 8, the second flatcar 9, and the third flatcar 10 in the embodiment of the present invention each have a length of 1.5 (11 m) and a width of 3 m. Is a standard flat car.
More specifically, L0 ═ 7m +0.5m ═ 7.5 m; wherein D is 7m, E is 0.5 m;
The safety of the hoisting device is verified as follows:
when the boom 3 idles (G1 is 0), L2 is at a minimum position L2min of 0.5m (the radius of the central axis of the boom support 4) +0.45m (half the width of the counterweight 6) of 0.95 m. 0.95m by 8.93t < (5+22) t by 0.717m, i.e. 8.84< 19.359; the safety factor of preventing the vehicle from inclining during idling is greater than 2, and the safety standard is met.
The cost of the turnout rail replacing operation vehicle is calculated as follows:
1. the length of the flat car is changed to 1.5, 3 flat cars (the traveling cars are self-provided), 25 ten thousand yuan per platform, and 75 ten thousand yuan in total.
2. The lifting machinery has 3 cranes, 20 ten thousand yuan per crane, and 60 ten thousand yuan in total.
3. The reconstruction cost is 22 ten thousand yuan per unit, and the total cost is 66 ten thousand yuan.
The total cost is as follows: 200 ten thousand yuan/group.
Example 2
Referring to fig. 1-7, embodiment 2 provides a rail changing method for switch rail changing, which uses the switch rail changing vehicle provided in embodiment 1, and the method includes:
loading a new turnout: the new switch is placed on the combination of the first carriage 7, the carriage 8 and the second carriage 9. The new turnout can be hoisted to the operation vehicle by adopting other hoisting mechanisms (such as in a repair workshop), and the turnout can also be hoisted to the operation vehicle by adopting the matching of the hoisting devices 2 of the first flat vehicle 7 and the second flat vehicle 9 (the process can refer to the loading of the turnout after replacement).
Unloading the new turnout: aligning new turnouts (a new movable point rail frog 13, a new switch rail 15 and a new basic rail 16) on an operation vehicle with the turnouts to be replaced by a tractor 1, enabling one sides (sides with lifting hoisting structures 5) of the suspension arms 3 of the hoisting devices 2 on the first flat vehicle 7 and the second flat vehicle 9 to face the new turnouts, separating the first flat vehicle 7 from the corresponding tractor 1, and matching the hoisting devices 2 of the first flat vehicle 7 and the second flat vehicle 9 to hoist the new turnouts on the operation vehicle to one side of the operation vehicle (to be aligned with the turnouts to be replaced); when hoisting a new switch rail 15 or a new base rail 16, the hoisting devices 2 of the first and second carriages 7, 9 are moved to the end of the carriage remote from the carriage 8; when the new movable point rail frog 13 is hoisted, the hoisting device 2 can be moved to the corresponding position (can be kept in the middle to be still) according to the requirement. After the hoisting is finished, the hoisting device 2 returns (including the position and the direction of the boom 3, and the flow is returned according to the conventional operation).
Replacement of a new turnout: the second and third carriages 9, 10 are separated and moved by the tractor 1 to the ends of the switch points to be replaced (movable point frog 14 to be replaced, point rail to be replaced and stock rail to be replaced) respectively. The lifting devices 2 on the second flatcar 9 and the third flatcar 10 are moved close to one end of the switch to be replaced and the boom 3 on the second flatcar 9 is reversed (only once with respect to the aforementioned step of unloading the new switch), the side of the boom 3 of the lifting devices 2 on the second flatcar 9 and the third flatcar 10 both facing the switch to be replaced. And the lifting devices 2 on the second flat carriage 9 and the third flat carriage 10 are matched to lift the turnout to be replaced to the other side of the operating vehicle, and then a new turnout is lifted to the installation position.
In the process, when the suspension arm 3 hoists the switch rail or the stock rail, the extension arm 11 is unfolded; when the suspension arm 3 is used for hoisting the movable point rail frog, the extension arm 11 is folded; the two reasons are that the movable point rail frog is short, and the extension arm 11 is not needed; secondly, the movable point rail frog is heavy, and the joint of the extension arm 11 and the suspension arm 3 can not bear the weight of the movable point rail frog.
Further, the method further comprises the following steps after the new turnout is replaced:
loading the replaced turnout: after the new turnout is replaced, the first flatcar 7, the traveling block 8 and the second flatcar 9 are combined and moved to the replaced turnout, the first flatcar 7 is separated from the corresponding tractor 1, the suspension arm 3 on the second flatcar 9 is reversed (only once compared with the replacement step of the new turnout), and the lifting devices 2 of the first flatcar 7 and the second flatcar 9 are matched to lift the replaced turnout onto the combination of the first flatcar 7, the traveling block 8 and the second flatcar 9.
Wherein, the turnout in the embodiment of the invention is provided with two lifting points 17, the two lifting points 17 are respectively connected with the lifting hoisting structures 5 of the hoisting devices 2 on the two flat cars, and the distance between the lifting point 17 and the corresponding end is 1/5-1/4 (for example, the distance between the lifting point 17 and the corresponding end of the movable point frog is 7 m). The turnout is arranged at 0.15-0.25m (specifically 0.2m) beside the flat car.
In this embodiment, "first", "second", and "third" only have a distinguishing function, and have no other special meaning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A turnout track-changing operation vehicle comprises two tractors (1) and at least one flat vehicle between the two tractors (1), wherein a hoisting device (2) is arranged on the flat vehicle, the hoisting device (2) comprises a suspension arm (3), a suspension arm support (4) which is arranged on the flat vehicle and is used for supporting the suspension arm (3), a lifting hoisting structure (5) which is arranged on one side of the suspension arm (3) and can move along the suspension arm (3), and a balancing weight (6) which is arranged on the other side of the suspension arm (3) and can move along the suspension arm (3); it is characterized in that the preparation method is characterized in that,
the turnout rail changing operation vehicle comprises three flatcars, and further comprises a traveling car (8) without a hoisting device (2), wherein the first flatcar (7), the traveling car (8), the second flatcar (9) and the third flatcar (10) are sequentially arranged between the two tractors (1), the suspension arm support (4) can move on the flatcars along the direction of the flatcars, the suspension arm (3) can rotate at least 180 degrees around the suspension arm support (4), and a foldable and openable extension arm (11) is hinged to the suspension arm support;
wherein the switch comprises a movable point rail frog, a switch rail and a stock rail and is provided with two lifting points (17);
the combination of the first flat car (7), the traveling car (8) and the second flat car (9) can transport turnouts and move to corresponding turnouts when the turnouts are loaded and unloaded, and the first flat car (7) is matched with the hoisting device (2) on the second flat car (9) to realize the loading and unloading of turnouts; wherein the hoisting devices (2) of the first and second flatcars (7, 9) both move to an end remote from the runner wagon (8) when hoisting the switch rail and the stock rail;
the second flat car (9) and the third flat car (10) are separated and respectively moved to two ends of a turnout to be replaced, the suspension arm (3) on the second flat car (9) is reversed, and the lifting devices (2) on the second flat car (9) and the third flat car (10) are matched to realize the replacement of the turnout; wherein the hoisting devices (2) on the second and third flatcars (9, 10) are both moved to one end close to each other;
when the lifting device (2) lifts the movable point rail frog, the extension arm (11) is folded; when the hoisting device (2) hoists the switch rail and the stock rail, the extension arm (11) is unfolded.
2. The switch rail-changing working vehicle as claimed in claim 1, wherein the length L1 of the boom (3) side is:
wherein L0 is D + E, D is the distance between the lifting point (17) on the movable point frog and the corresponding end, E is the radius of the suspension arm support (4), A is half of the width of the flat car, B is the distance between the turnout and the flat car, and C is half of the widest width of the movable point frog;
the length L2 of the other side of the suspension arm (3) is 4.5-5.5m, and the length L4 of the extension arm (11) is 3-5 m;
the weight G2 of the counterweight block (6) is obtained by a formula G1L 1- (F + G) L3-G2L 2, G1 is the weight of a lifting point (17) of the movable point frog, L3 is the vertical distance from the center of the suspension arm support (4) to the wheel rim of the flat car, F is the weight of the flat car, and G is the weight of the hoisting device (2).
3. The turnout rail-changing operating vehicle according to claim 2, wherein the flatcar is provided with a slide rail (12) along which the boom support (4) slides, the boom support (4) is slidably provided on the slide rail (12), and a traveling structure is provided between the boom support and the slide rail (12).
4. The switch rail-changing working vehicle as claimed in claim 2, characterized in that the length L1 of one side of the boom (3) is 7.5-8.5m, the weight G2 of the counterweight (6) is 8-10t, the weight F of the flatcar is 22-24t, the weight G of the hoisting device (2) is 4-6t, the distance B between the switch and the flatcar is 0.15-0.25m, and the distance D between the lifting point (17) on the movable point frog and the corresponding end is 6.2-7.7 m.
5. The switch rail-changing work vehicle according to claim 1, characterized in that the lengths of the first flatcar (7), the runner wagon (8), the second flatcar (9) and the third flatcar (10) are all greater than 15.4 m.
6. The turnout rail-changing operating vehicle according to claim 1, wherein the first flat carriage (7), the traveling carriage (8), the second flat carriage (9) and the third flat carriage (10) are all 1.5 long and have a width of 3 m.
7. The switch rail-changing operating vehicle of claim 1, characterized in that the length L1 of one side of the boom (3) is 8m, and the length L2 of the other side thereof is 5 m; the length L4 of the extension arm (11) is 4m, and the weight G2 of the counterweight block (6) is 9 t.
8. A method for changing a railroad switch track, wherein a railroad switch track changing vehicle according to any one of claims 1 to 7 is used, the method comprising:
loading a new turnout: placing the new turnout on the combination of the first flat wagon (7), the traveling wagon (8) and the second flat wagon (9);
unloading of the new turnout: aligning a new turnout on the operation vehicle with a turnout to be replaced, and matching the hoisting devices (2) of the first flat vehicle (7) and the second flat vehicle (9) to hoist the new turnout on the operation vehicle to one side of the operation vehicle; when a new switch rail (15) or a new basic rail (16) is hoisted, the hoisting devices (2) of the first flat wagon (7) and the second flat wagon (9) move to one end of the flat wagon far away from the traveling wagon (8);
replacement of a new turnout: the second flat wagon (9) and the third flat wagon (10) are separated and respectively moved to two ends of a turnout to be replaced; the hoisting devices (2) on the second flatcar (9) and the third flatcar (10) move to one end close to a turnout to be replaced, and the suspension arm (3) on the second flatcar (9) rotates reversely; the hoisting devices (2) on the second flat car (9) and the third flat car (10) are matched to hoist the turnout to be replaced to the other side of the operation car, and then the new turnout is hoisted to the installation position;
wherein, when the suspension arm (3) hoists the switch rail or the stock rail, the extension arm (11) is unfolded; when the movable point rail frog is hoisted, the extension arm (11) is folded.
9. The method of claim 8, wherein said replacing of said new switch further comprises:
loading the replaced turnout: after the completion of the replacement of the new turnout, the combination of the first flat car (7), the traveling block (8) and the second flat car (9) is combined and moved to the turnout after the replacement, the suspension arm (3) on the second flat car (9) is reversed, and the turnout after the replacement is hoisted to the combination of the first flat car (7), the traveling block (8) and the second flat car (9) by matching the hoisting device (2) of the first flat car (7) and the second flat car (9).
10. The rail changing method according to claim 8, wherein two lifting points (17) are arranged on each turnout, the two lifting points (17) are respectively connected with lifting hoisting structures (5) of hoisting devices (2) on two flatcars, and the distance between each lifting point (17) and the corresponding end is 1/5-1/4 of the length of each lifting point; the turnout is arranged at a position 0.15-0.25m beside the flat car.
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| CN202010728640.XA CN111847274B (en) | 2020-07-27 | 2020-07-27 | Switch rail changing operation vehicle and rail changing method |
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| CN202010728640.XA CN111847274B (en) | 2020-07-27 | 2020-07-27 | Switch rail changing operation vehicle and rail changing method |
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| CN114941263B (en) * | 2022-05-07 | 2024-02-13 | 株洲时代电子技术有限公司 | Switch replacing operation method |
| CN115559163A (en) * | 2022-11-22 | 2023-01-03 | 中铁十四局集团青岛工程有限公司 | Multi-line track laying all-in-one machine |
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| JP5974247B2 (en) * | 2012-08-01 | 2016-08-23 | コベルコ建機株式会社 | Boom extraction device and boom extraction method |
| CN104775341B (en) * | 2015-01-08 | 2016-12-07 | 中国铁路总公司 | High-speed switch is grown up the replacing system of parts and replacing options |
| CN107227663A (en) * | 2017-06-30 | 2017-10-03 | 金鹰重型工程机械有限公司 | Articulated car band carries running gear and railway this line replacing big part method of track |
| CN107476146B (en) * | 2017-07-14 | 2019-06-18 | 蔡钟博 | The long heavy parts replacement sling cart of high-speed railway track switch and its replacing options |
| US10220921B1 (en) * | 2017-10-26 | 2019-03-05 | Miller Towing Equipment, Inc. | Pipe-laying vehicle with rotator platform leveling system |
| CN109403161B (en) * | 2018-02-01 | 2020-12-04 | 宝鸡中车时代工程机械有限公司 | Construction process for replacing turnout of large-tonnage hoisting rail car |
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