CA2509372A1 - Rc-x shunter - Google Patents
Rc-x shunter Download PDFInfo
- Publication number
- CA2509372A1 CA2509372A1 CA 2509372 CA2509372A CA2509372A1 CA 2509372 A1 CA2509372 A1 CA 2509372A1 CA 2509372 CA2509372 CA 2509372 CA 2509372 A CA2509372 A CA 2509372A CA 2509372 A1 CA2509372 A1 CA 2509372A1
- Authority
- CA
- Canada
- Prior art keywords
- rail
- sketch
- crawling
- shunter
- gripping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
- B61J3/00—Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car propelling devices therefor
- B61J3/12—Self-propelled tractors or pushing vehicles, e.g. mules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The existing Railway Train Shunters are generally mobilized by driven wheels.
This arrangement has a limited tractive force. The size of the tractive force developed by driven wheels is a function of the own weight of the shunter. That is why for heavy train is necessary to use few shunters at the time. The effect of slipping wheels limits the maximum tractive force that is able to develop a shunter or set of shunters.
Modern technology knows cases when pulling or pushing of the train is done by using set of the clamps on the each rail by turn. The system is actually repeating the nature where a monkey by gripping of the branches moves upward. This system based on the gripping clamps has much higher tractive force in comparison to driven wheels but is very limited in terms of the speed and doesn't allow any continuous grip on the same rail.
The continuity of the grip in this existing case is based on the very short overlap of the grip on both rails at the time during shifting of the gripping from rail to rail.
The effect of the shifting a gripping from rail to rail and return motion of the clamping set makes the existing system very complicated with huge mechanical and hydraulic difficulties and limitations.
The new invention based on the crawling chain with clamps as it shown on the fig.1 used to overcome the above mentioned problems and limitations.
This arrangement has a limited tractive force. The size of the tractive force developed by driven wheels is a function of the own weight of the shunter. That is why for heavy train is necessary to use few shunters at the time. The effect of slipping wheels limits the maximum tractive force that is able to develop a shunter or set of shunters.
Modern technology knows cases when pulling or pushing of the train is done by using set of the clamps on the each rail by turn. The system is actually repeating the nature where a monkey by gripping of the branches moves upward. This system based on the gripping clamps has much higher tractive force in comparison to driven wheels but is very limited in terms of the speed and doesn't allow any continuous grip on the same rail.
The continuity of the grip in this existing case is based on the very short overlap of the grip on both rails at the time during shifting of the gripping from rail to rail.
The effect of the shifting a gripping from rail to rail and return motion of the clamping set makes the existing system very complicated with huge mechanical and hydraulic difficulties and limitations.
The new invention based on the crawling chain with clamps as it shown on the fig.1 used to overcome the above mentioned problems and limitations.
Description
2.0 BACKGROUND OF THE INVENTION
2.1 Field of invention use This invention relates to the mechanical arrangement of tracking by a crawling endless chains which are used instead a conventional wheels. The invention allows to the train shunter to move upon the rails of the railway without to use any wheels see (fig. l ). The chain of the crawlers (caterpillars) is provided with clamps.
These are preventing the slipping effect in case of the high load.
2.2 Prior Art The conventional wheel-type design fits very well at reasonable load. and normal speed. This type doesn't have good answer to problems of overload. Adding of sand on the railway helps to solve the problem up to certain level of the overload.
But this method causes great damage to the rails surface and can not be counted as a proper technical solution. That is why under conditions of the overload appearing very often, the wheel type design becomes completely useless.
The existing shifting-clamps system is used just under very narrow criteria.
This system fits mainly for slow shunting of the train for example at the rapid automatic loading stations. The wheels system which has a slipping feature is completely unacceptable for slow shunting where the traveling speed has to be very stable and on the high level of precision.
Lack of the load control at the first type and lack of the speed control at the second type of the existing design leaves room for improvement by inventing of the new technical solution, which is presented below.
2.1 Field of invention use This invention relates to the mechanical arrangement of tracking by a crawling endless chains which are used instead a conventional wheels. The invention allows to the train shunter to move upon the rails of the railway without to use any wheels see (fig. l ). The chain of the crawlers (caterpillars) is provided with clamps.
These are preventing the slipping effect in case of the high load.
2.2 Prior Art The conventional wheel-type design fits very well at reasonable load. and normal speed. This type doesn't have good answer to problems of overload. Adding of sand on the railway helps to solve the problem up to certain level of the overload.
But this method causes great damage to the rails surface and can not be counted as a proper technical solution. That is why under conditions of the overload appearing very often, the wheel type design becomes completely useless.
The existing shifting-clamps system is used just under very narrow criteria.
This system fits mainly for slow shunting of the train for example at the rapid automatic loading stations. The wheels system which has a slipping feature is completely unacceptable for slow shunting where the traveling speed has to be very stable and on the high level of precision.
Lack of the load control at the first type and lack of the speed control at the second type of the existing design leaves room for improvement by inventing of the new technical solution, which is presented below.
3.0 SUMMARY OF THE INVENTION
3.1 The name The name of the invention is: RC-X Shunter.
The abbreviated form RC means: Railway Crawling The terminology of Crawling means: Endless Chain instead wheels. The terminology of Shunter means: pushing or pulling the train at low speed.
3.2 Aim of the invention The aim of the invention is to create the mechanical arrangement for a train shunter which will avoid technical problems existing in the previously developed types.
a) To prevent slipping under high load.
b) To make shunting speed stable in a precise manner.
3.3 The components of the RC-X (Railway Crawling) Shunter.
The specific components of the crawling arrangement covered by this invention are as follows:
1 ) Crawling Endless Chains for railway.
2) Track shoes with the clamping arrangement.
3) Chain guiders 4) chain drives 5) pivoted sub-chassis 3.4 General description of the concept.
The idea of this invention is to drive the Railway Train Shunter (pusher or puller) by a Crawling Endless Chains instead wheels. All the track shoes of the crawling chains for this machine are designed with clamps (see Fig.2). The important feature counted in this invention is, that all the track shoes of the crawling chains, during their contact with the rail, must remain static (non - slipping). When the track shoes are static their clamps are activated and gripping the rail head. The gripping continues all the time until the track shoe is in contact with the rail. The arrangement of the crawling endless chain with gripping clamps eliminates any slipping and increases the tracking force dramatically.
This method doesn't require any ballast and allows reducing the weight of the entire Crawling Railway Train Shunter.
3.4.1. Clamps Every clamp set has two components. The component located at the inner side of the rail (see part 2) is stationary (fixed on the shoe). The second component (part 3) which is located at the outer side of the rail is a portable finger. The portable fingers are retracting into the track shoes of the chain when they coming in contact with the abnormally big rail head. This feature helps to overcome upon the railway points.
3.4.1.1 Clamping arrangement The clamping of the rail is reached by the independent arrangement (Fig 4a &
4b) installed on every track shoe. This process is described below.
When the track shoe comes in contact with the rail, the spring (part 10) holds the portable finger in the position "ready" for clamping process. After the track shoe reaches the rail head and the portable fingers is/are in static stage, the oil pressurizer (part 8) is activated by sub-chassis flange (part 17a). The stream of the oil is sent to the chamber of the clamp activator (part 6). The clamp activator causes pressure on the outer finger (part 3) which clamps the rail head. In order to maintain the system reliable (in case of the oil loses/leakage) every track shoe is provided with the oil compensator (part 9).
The oil compensator controls the oil circuit of the pressurizing system of the particular track shoe continuously. The clamping system can be disabled by lifting the flange (part 17a).
When the pressurize roller (part 8a) reaches the other end of the sub-chassis flange the pressurizer (part 8) becomes free. The oil pressure in the system of the track shoe (part 1 ) drops. Now this pressure is low enough that the backing activator (part 5) is able to release the outer finger (part 3). At this stage the clamping system of the particular track shoe is disabled. This track shoe (part 1) now is free to leave the surface of the rail (part 14).
3.4.2. Chain Guider To overcome the problems of tracking at the curved railway route the Railway Crawling Shunter is provided with following arrangements:
a) The suspensions of the Crawling Endless Chains are installed on the pivoted sub-chassis. This arrangement allows maintaining every couple (left and right) of the Crawling Endless Chains on the track in case of the curved part of the railway route.
b) The Crawling Endless Chain's track shoes are connected each other through the interface unit (Fig 4c). This type of connection is provided in order to maintain the shape of the chain as similar as possible to the curve of the railway route. This also allows to the clamps to be able to embrace properly the head of the rail.
c) Every Crawling Endless Chain is controlled by the Chain Guider (Fig2). This arrangement allows for both chains (left and right) installed on the same sub-chassis to maintain the same gap between them along the contact areas on the rails. It also allows copying by the Crawling Endless Chain the shape of the curved route at the railway points.
3,4.3. Chain Drives The gripping of the rails doesn't allow any slipping effect. The invention takes in account that every Crawling Endless Chain must be driven independently or through differential gearbox. This concept is necessary in order to overcome the length differences of the rails at the curved route and the chains length too. The driving of the Shunter based on the using of the gear bulges (part 4) at the "static area" of the Crawling Endless Chains (see Fig 1).
3.4.4. Pivots Every set of the both Crawling Endless Chains (left and right) are installed on the pivotally mounted sub-chassis. This is in order to maintain the Crawling Endless Chains on track at the areas of the curved railway route.
3.1 The name The name of the invention is: RC-X Shunter.
The abbreviated form RC means: Railway Crawling The terminology of Crawling means: Endless Chain instead wheels. The terminology of Shunter means: pushing or pulling the train at low speed.
3.2 Aim of the invention The aim of the invention is to create the mechanical arrangement for a train shunter which will avoid technical problems existing in the previously developed types.
a) To prevent slipping under high load.
b) To make shunting speed stable in a precise manner.
3.3 The components of the RC-X (Railway Crawling) Shunter.
The specific components of the crawling arrangement covered by this invention are as follows:
1 ) Crawling Endless Chains for railway.
2) Track shoes with the clamping arrangement.
3) Chain guiders 4) chain drives 5) pivoted sub-chassis 3.4 General description of the concept.
The idea of this invention is to drive the Railway Train Shunter (pusher or puller) by a Crawling Endless Chains instead wheels. All the track shoes of the crawling chains for this machine are designed with clamps (see Fig.2). The important feature counted in this invention is, that all the track shoes of the crawling chains, during their contact with the rail, must remain static (non - slipping). When the track shoes are static their clamps are activated and gripping the rail head. The gripping continues all the time until the track shoe is in contact with the rail. The arrangement of the crawling endless chain with gripping clamps eliminates any slipping and increases the tracking force dramatically.
This method doesn't require any ballast and allows reducing the weight of the entire Crawling Railway Train Shunter.
3.4.1. Clamps Every clamp set has two components. The component located at the inner side of the rail (see part 2) is stationary (fixed on the shoe). The second component (part 3) which is located at the outer side of the rail is a portable finger. The portable fingers are retracting into the track shoes of the chain when they coming in contact with the abnormally big rail head. This feature helps to overcome upon the railway points.
3.4.1.1 Clamping arrangement The clamping of the rail is reached by the independent arrangement (Fig 4a &
4b) installed on every track shoe. This process is described below.
When the track shoe comes in contact with the rail, the spring (part 10) holds the portable finger in the position "ready" for clamping process. After the track shoe reaches the rail head and the portable fingers is/are in static stage, the oil pressurizer (part 8) is activated by sub-chassis flange (part 17a). The stream of the oil is sent to the chamber of the clamp activator (part 6). The clamp activator causes pressure on the outer finger (part 3) which clamps the rail head. In order to maintain the system reliable (in case of the oil loses/leakage) every track shoe is provided with the oil compensator (part 9).
The oil compensator controls the oil circuit of the pressurizing system of the particular track shoe continuously. The clamping system can be disabled by lifting the flange (part 17a).
When the pressurize roller (part 8a) reaches the other end of the sub-chassis flange the pressurizer (part 8) becomes free. The oil pressure in the system of the track shoe (part 1 ) drops. Now this pressure is low enough that the backing activator (part 5) is able to release the outer finger (part 3). At this stage the clamping system of the particular track shoe is disabled. This track shoe (part 1) now is free to leave the surface of the rail (part 14).
3.4.2. Chain Guider To overcome the problems of tracking at the curved railway route the Railway Crawling Shunter is provided with following arrangements:
a) The suspensions of the Crawling Endless Chains are installed on the pivoted sub-chassis. This arrangement allows maintaining every couple (left and right) of the Crawling Endless Chains on the track in case of the curved part of the railway route.
b) The Crawling Endless Chain's track shoes are connected each other through the interface unit (Fig 4c). This type of connection is provided in order to maintain the shape of the chain as similar as possible to the curve of the railway route. This also allows to the clamps to be able to embrace properly the head of the rail.
c) Every Crawling Endless Chain is controlled by the Chain Guider (Fig2). This arrangement allows for both chains (left and right) installed on the same sub-chassis to maintain the same gap between them along the contact areas on the rails. It also allows copying by the Crawling Endless Chain the shape of the curved route at the railway points.
3,4.3. Chain Drives The gripping of the rails doesn't allow any slipping effect. The invention takes in account that every Crawling Endless Chain must be driven independently or through differential gearbox. This concept is necessary in order to overcome the length differences of the rails at the curved route and the chains length too. The driving of the Shunter based on the using of the gear bulges (part 4) at the "static area" of the Crawling Endless Chains (see Fig 1).
3.4.4. Pivots Every set of the both Crawling Endless Chains (left and right) are installed on the pivotally mounted sub-chassis. This is in order to maintain the Crawling Endless Chains on track at the areas of the curved railway route.
Claims (5)
1 - Track shoe
2 - Inner finger
3 - Outer finger
4 - Drive gear bulge - Return activator 6 - Clamp activator 7 - Relieve activator 8 - Pressurize unit 8a - Pressurize roller 9 - Oil compensator - Return spring 11 - Oil supply line 12 - Oil pressure line 13 - Bleeder 14 - Rail - Long pin 16 - Interface (see Fig 4c) 17 - Sub-chassis (see Fig 3) 17a - Sub-chassis flange (see Fig 3) 18 - Short pin 19 - Drive mean - Guider 21 - Chain support
5.2 Figure 1 It's a sketch of the RC-X Shunter at general view. The aim of the sketch is to show the shunter driven by the Crawling Endless Chains. In addition this figure includes the schematic figure of the area used for shunting.
5.3 Figure 2 The sketch shows cross section of the track shoes in contact with the rail.
This sketch explains the way of clamping the rail by inner and outer fingers. The sketch also includes the guiding wheels which maintain constantly the minimum gap between the left and the right chain.
5.4 Figure 3 This sketch shows the general arrangement of the Crawling Endless Chain. On this sketch is shown location of the main components involved in the clamping and driving system.
5.5 Figure 4 (a, b, c) These sketches relate to the elements of the track shoes. The figure 4a explains the hydro-mechanical system build-in of each track shoe. The aim of the system is to clamp and relieve the rail head. The figure 4b shows the principal location of all the elements involved in the process of clamping. The figure 4c shows the interface which allows to the Crawling Endless Chain to be flexible in contact with the rail at the curved areas.
5.3 Figure 2 The sketch shows cross section of the track shoes in contact with the rail.
This sketch explains the way of clamping the rail by inner and outer fingers. The sketch also includes the guiding wheels which maintain constantly the minimum gap between the left and the right chain.
5.4 Figure 3 This sketch shows the general arrangement of the Crawling Endless Chain. On this sketch is shown location of the main components involved in the clamping and driving system.
5.5 Figure 4 (a, b, c) These sketches relate to the elements of the track shoes. The figure 4a explains the hydro-mechanical system build-in of each track shoe. The aim of the system is to clamp and relieve the rail head. The figure 4b shows the principal location of all the elements involved in the process of clamping. The figure 4c shows the interface which allows to the Crawling Endless Chain to be flexible in contact with the rail at the curved areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2509372 CA2509372A1 (en) | 2005-06-20 | 2005-06-20 | Rc-x shunter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2509372 CA2509372A1 (en) | 2005-06-20 | 2005-06-20 | Rc-x shunter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2509372A1 true CA2509372A1 (en) | 2006-12-20 |
Family
ID=39343545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2509372 Abandoned CA2509372A1 (en) | 2005-06-20 | 2005-06-20 | Rc-x shunter |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2509372A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3254926A1 (en) * | 2016-06-07 | 2017-12-13 | Changzhou Development & Manufacture Centre Co., Ltd. | Rail clamping device and trapped rail vehicle thereof |
-
2005
- 2005-06-20 CA CA 2509372 patent/CA2509372A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3254926A1 (en) * | 2016-06-07 | 2017-12-13 | Changzhou Development & Manufacture Centre Co., Ltd. | Rail clamping device and trapped rail vehicle thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |