CN2372363Y - Elevating equipment with friction rope and wheel transmission mechanism - Google Patents
Elevating equipment with friction rope and wheel transmission mechanism Download PDFInfo
- Publication number
- CN2372363Y CN2372363Y CN 99213912 CN99213912U CN2372363Y CN 2372363 Y CN2372363 Y CN 2372363Y CN 99213912 CN99213912 CN 99213912 CN 99213912 U CN99213912 U CN 99213912U CN 2372363 Y CN2372363 Y CN 2372363Y
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- friction
- gear
- rope
- rope sheave
- workbench
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Abstract
The utility model relates to elevating equipment with a friction rope pulley transmission mechanism, which is used for elevating a workbench of an electricity-proof maintenance vehicle for steel truss girder bridges and belongs to a rope pulley transmission device. The friction rope pulley transmission mechanism comprises two friction rope pulleys with identical diameters, revolution rates and rotation directions, a plurality of annular rope grooves are arranged on the friction rope pulleys. The friction rope pulley is wound with a steel cable of which the lower end is connected with a pendant block, the upper end of the steel rope is connected with a butt joint workbench by a capstan engine. The utility model has the advantages of safety, high reliability, small needed driving force, light weight, simple structure and stable workbench elevation and descent, solves the problems of high weight and high energy consumption in the prior art, and is suitable for the maintenance operation of various base-supporting steel truss girder bridges with a wide girder and a high joist.
Description
The utility model relates to a kind of transmission mechanism of lifting gear of railway lower support type steel truss girder bridge anti-power repairing vehicle workbench.
At present, in the China railways bridge maintenance, particularly the steel truss girder bridge maintenance car worktable lifting device that adopts in the maintenance of electrified sections lower support type steel truss girder bridge is by scientific research institution, Zhengzhou Railway Administration Xi'an development " steel truss girder bridge maintenance car worktable lifting device " (patent No.: ZL94207761X).This device has solved the lifting problem of electric railway steel truss girder bridge anti-power repairing vehicle workbench preferably, but used lifting gear weight is big, and required drive is big, when adopting electric up-down, power, brake force and security insurance measure to hoist engine are had relatively high expectations, and hoisting difficulty is big.For the lifting of the high higher bridge maintenance workbench in double track bridge and purlin, problem is more outstanding.
The purpose of this utility model is to overcome the shortcoming that above-mentioned prior art exists, and a kind of needed power can reduce the self-powered platform lifting time is provided, and mechanism simplifying is in light weight, the lifting gear that is provided with the friction bands wheel drive mechanism that construction operation is safe and reliable.
The purpose of this utility model can realize in the following manner.Two liftables about keeping in original lifting gear, the workbench and the workbench of butt joint are hung bindiny mechanism, also has the hoist engine above workbench, wire rope, pulley, balancing weight, transmission mechanism is designed to friction bands wheel drive mechanism 8, be installed on the truss 7 of maintenance car, on truss 7, also be provided with lock 9,29, stop 1,4,5, the wire rope 10 that is wrapped on the hoist engine 6 has one side to be connected balancing weight 11 through pulley with lock 29, another side is wrapped on the friction rope sheave of friction bands wheel drive mechanism 8 through pulley and lock 9, and termination is weighed down piece 2 under this wire rope.
The friction bands wheel drive mechanism can be electronic also can be manual, its structure is as follows: motor 18 connects gear 17 through reducer 19, gear 17 is installed on the splined shaft 20, gear 17 meshes step by step with gear 16, gear 15, gear 14, coaxial friction rope sheave 12 is housed on the gear 14, coaxial friction rope sheave 13 is housed on the gear 16, with friction rope sheave 13 coaxial also have ratchet 21, ratchet 21 is furnished with ratchet 22, with friction rope sheave 12 coaxial also have ratchet or washer 25, manual pulley 23 is equipped with on axle 26 tops of gear 15, and aforementioned each axle bearing is contained on the seat board 27,28.
Fig. 1 is the lifting gear schematic diagram that is provided with the friction bands wheel drive mechanism
Fig. 2 is a friction bands wheel drive mechanism vertical view
Fig. 3 is the A-A sectional view of Fig. 2
Among the figure, 1,4,5, be stop, 2 for weighing down piece, 3 is the dock workbench, and 6 is hoist engine, and 7 is the maintenance car truss, 8 is the friction bands wheel drive mechanism, 9,29 are wire rope locking device, and 10 is wire rope, and 11 is balancing weight, 12,13 be respectively two equal diameter friction rope sheaves that have some groovings, 14,15,16,17 is gear, and 18 is motor, and 19 is worm type of reduction gearing, 20 is splined shaft, 21 is ratchet, and 22 is ratchet, and 23 is manual pulley, 24 is shift fork, 25 is ratchet or washer, the axle of 26 gears 17,27,28 seat boards.
The utility model compared with the prior art, its performance safety is reliable, required driving force is little, simple in structure, in light weight, cost is low, worktable lifting is steady, is applicable to various deck-sidings, the maintenance construction operation of the through truss girder bridge that the purlin is high.
Now in conjunction with the accompanying drawings and embodiments the utility model further is described in detail.
The garden of friction rope sheave 12 and friction rope sheave 13 respectively is provided with annular grooving parallel to each other in the present embodiment on week, wire rope is wrapped on the friction rope sheave along groove, the diameter of two friction rope sheaves 12,13 is identical, rotating speed is identical, direction of rotation is identical, and gear 14 is identical with diameter, the number of teeth, the modulus of gear 16; Gear 17 also can be along splined shaft 20 slippages.Lock, stop are commercially available product, and reducer 19 is a worm type of reduction gearing.
The steel truss girder bridge maintenance car is when carrying out the bridge maintenance operation, and mating operation platform 3 needs upper and lower lifting because of the difference of maintenance position.When needing to descend, the ratchet 22 in the friction bands wheel mechanism 8 that is installed on the maintenance car truss 7 is opened, itself and ratchet 21 are broken away from, open the lock 9,29 of wire rope 10 simultaneously for mating operation platform 3.The bob piece 2 that friction bands wheel drive mechanism 8 belows are provided with makes between wire rope 10 and friction rope sheave 12 and the friction rope sheave 13 and produces enough frictional force.At this moment, drive motor 17 or manual operation manual pulley 23, friction rope sheave 12 and friction rope sheave 13 frictionallies drive wire rope 10 and move up, because mating operation platform 3 is to be connected with wire rope 10 by hoist engine 6, mating operation platform 3 just descends under the effect of gravity.When mating operation platform 3 needs to rise, opposite direction drive motor 17 or manual operation manual pulley 23, mating operation platform 3 rises.
Stop 1,4,5 is controlled upper limit position, medium position and the lower position of mating operation platform 3 respectively.The balancing weight 11 that this device is provided with, the load in order to balance mating operation platform 3 reduces electronic or manual power, is convenient to operation, improves security reliability.Diameter, the number of teeth, the modulus of gear 14,16 are identical, gear 14 and gear 16 equal and 15 engagements of the gear between the two, gear 16 and gear 17 engagements.Because two friction rope sheaves, 12,13 diameters are identical, therefore, when drive motors 18, friction rope sheave 12,13 is just together with speed, equidirectional rotation, make wire rope 10 can not produce slippage on week in friction rope sheave 12,13 gardens, and owing to be respectively arranged with several annular groovings parallel to each other on the friction rope sheave 12,13, guarantee that wire rope 10 can not produce axial slip, thereby guarantee that wire rope 10 is arranged on the friction rope sheave 12,13 all the time in an orderly manner.
The lock 9,29 of locking wire rope 10 after mating operation platform 3 is in place according to the construction operation needs, locking ratchet 21 and ratchet 22, guarantee mating operation platform 3 keep its should the position can not glide.When breaking down, can stir shift fork 24, wheel 17 is broken away from along splined shaft 20 slippages and gear 16, load onto manual pulley 23, manual operation lifting mating operation platform 3 for motor.If during electronic actuating lifting mating operation platform 3, worm type of reduction gearing 19 utilizes its self-locking performance, increase the security reliability of friction bands wheel drive mechanism 8 work.
Claims (3)
1. lifting gear that is provided with the friction bands wheel drive mechanism that is used for lower support type steel truss girder bridge anti-power repairing vehicle workbench, two liftables about comprising, the workbench and the workbench of butt joint are hung bindiny mechanism, also has the hoist engine above workbench, wire rope, pulley, balancing weight, transmission mechanism, it is characterized in that this transmission mechanism is friction bands wheel drive mechanism (8), be installed on the truss (7) of maintenance car, on truss (7), also be provided with lock (9,29), stop (1,4,5), the wire rope (10) that is wrapped on the hoist engine (6) has one side to be connected balancing weight (11) through pulley with lock (29), another side is wrapped on the friction rope sheave of friction bands wheel drive mechanism (8) through pulley and lock (9), and termination is weighed down piece (2) under this wire rope.
2. the lifting gear that is provided with the friction bands wheel drive mechanism according to claim 1, it is characterized in that described friction bands wheel drive mechanism can be electronic also can be manual, its structure is as follows: motor (18) connects gear (17) through reducer (19), gear (17) is installed on the splined shaft (20), gear (17) and gear (16), gear (15), gear (14) meshes step by step, be equipped with on the gear (14) coaxial friction rope sheave (13) is housed on coaxial friction rope sheave (12) gear (16), the in addition ratchet (21) coaxial with friction rope sheave (13), ratchet (21) is furnished with ratchet (22), in addition ratchet or the washer (25) coaxial with friction rope sheave (12), manual pulley (23) is equipped with on axle (26) top of gear (15), and aforementioned each axle bearing is contained in seat board (27,28) on.
3. the lifting gear that is provided with the friction bands wheel drive mechanism according to claim 1 and 2, it is characterized in that the rubbing garden of rope sheave (12) and friction rope sheave (13) respectively is provided with annular grooving parallel to each other on week, wire rope is wrapped on the friction rope sheave along groove, the diameter of two friction rope sheaves (12,13) is identical, and gear (14) is identical with diameter, the number of teeth, the modulus of gear (16); Gear (17) also can be along splined shaft (20) slippage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213912 CN2372363Y (en) | 1999-06-22 | 1999-06-22 | Elevating equipment with friction rope and wheel transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213912 CN2372363Y (en) | 1999-06-22 | 1999-06-22 | Elevating equipment with friction rope and wheel transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372363Y true CN2372363Y (en) | 2000-04-05 |
Family
ID=34006201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99213912 Expired - Lifetime CN2372363Y (en) | 1999-06-22 | 1999-06-22 | Elevating equipment with friction rope and wheel transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2372363Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691258A (en) * | 2012-05-21 | 2012-09-26 | 上海金山石化物流有限公司 | Servo control system of lifting bridge |
-
1999
- 1999-06-22 CN CN 99213912 patent/CN2372363Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691258A (en) * | 2012-05-21 | 2012-09-26 | 上海金山石化物流有限公司 | Servo control system of lifting bridge |
| CN102691258B (en) * | 2012-05-21 | 2015-05-13 | 上海金山石化物流有限公司 | Servo control system of lifting bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |