CN203794461U - Self-lubricating elastic force adjustment horizontal wheel group capable of preventing crane from gnawing rail - Google Patents
Self-lubricating elastic force adjustment horizontal wheel group capable of preventing crane from gnawing rail Download PDFInfo
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- CN203794461U CN203794461U CN201420142490.4U CN201420142490U CN203794461U CN 203794461 U CN203794461 U CN 203794461U CN 201420142490 U CN201420142490 U CN 201420142490U CN 203794461 U CN203794461 U CN 203794461U
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- horizontal wheel
- aligning roller
- roller bearing
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- 230000035929 gnawing Effects 0.000 title abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 238000009433 steel framing Methods 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000005499 meniscus Effects 0.000 claims description 8
- 238000009738 saturating Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
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- 238000012937 correction Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
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- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The utility model provides a self-lubricating elastic force adjustment horizontal wheel group capable of preventing a crane from gnawing a rail. The horizontal wheel group is respectively provided with a set of horizontal wheels on each of two side surfaces of a steel rail, the upper end surface of each set of horizontal wheels is connected with a gland to compress an outer ring of a self-aligning roller bearing is tightly; two eccentric shafts are symmetrically fixed on a structural frame through a positioning frame, the lower end surfaces of the eccentric shafts are connected with a bottom support to support an inner ring of the self-aligning roller bearing tightly, so that the self-aligning roller bearing is positioned axially on the eccentric shafts; the middle parts of the two eccentric shafts are connected with two positioning blocks through bolts, and support seats in which main joint bearings are mounted are arranged at the lower parts of the two positioning blocks; a thruster, a guide rod and a guide seat are connected between the upper parts of the two eccentric shafts, and the guide seat is connected with the top ends of the eccentric shafts through a bottom plate and a half moon-shaped plate to constitute a splittable rigid body. The self-lubricating elastic force adjustment horizontal wheel group has the beneficial effects that the horizontal wheel group can greatly ensure the capability of an automatic protection device, relieve the sudden impact formed on the crane rail in a flexible way and resolve great destructive power against the horizontal wheel group and crane equipment parts.
Description
Technical field
The utility model relates to actv. and prevents or eliminate weight-lifting equipment overhead traveling crane when operation, and the anti-overhead traveling crane that occurs gnawing rail fault between its wheel rim and track is gnawed self-lubricating, the elasticity of rail and adjusted force level wheels.
Background technology
Overhead traveling crane is technical application weight-lifting equipment the most widely, and the wheel of overhead traveling crane rotates on rail, drives overhead traveling crane body to move.But when overhead traveling crane moves, the side of its wheel rim and rail track produces heel and toe wear, often occurs gnawing rail fault.It is apparent gnawing the harm that rail causes, and when serious, directly makes the very fast attenuation of wheel rim or inefficacy, causes overhead traveling crane safe in operation hidden danger to produce, and track side surfaces is worn simultaneously, changes the original geometry size of rail, causes wheel group, rail operating cycles to shorten.Make accordingly overhead traveling crane move, the load of the associated components such as the motor using, reductor, drive coupling additionally increases, and the increased frequency that breaks down brings maintenance, repair amount to increase, and replacement frequency increases, and equipment can start rate and decline.
Cause the reason of overhead traveling crane wheel gnawing rail to have a lot: for example: wheel drive system is asynchronous; Vehicle wheel footpath error is excessive, and setting accuracy is inadequate; Runway girder, end-beam arrangement is undesirable or rigidity, insufficient strength; Single factor or the composite factors such as the span of rail different parts, difference of height exceed standard, can cause the generation of overhead traveling crane wheel gnawing rail fault.Some does not gnaw rail apparently, left to gnaw track and resemble, though by plant maintenance through eliminating, along with the use of overhead traveling crane, may produce equipment unit ageing failure; It is improper to overhaul, safeguard, or the residing environment change of overhead traveling crane, and as factors such as workshop steel structure distortion, rail beam setting of ground, causing overhead traveling crane to gnaw rail phenomenon can reappear.
In the daily attention of overhead traveling crane operation, maintenance process, for certain overhead traveling crane, find its generation to gnaw the immediate cause of rail more difficult, even if find the reason of gnawing rail, thoroughly solve and gnaw rail fault targetedly, difficulty is larger conventionally, and restraining factors are many.Through investigating, in fact there is no need to eliminate overhead traveling crane wheel gnawing rail fault by direct mode.In most of situation, adopt indirect mode and measure, can prevent or eliminate the wheel gnawing rail harm that overhead traveling crane occurs in operational process by actv. equally.
Summary of the invention
For structural deficiency in prior art, the purpose of this utility model is to provide a kind of anti-overhead traveling crane and gnaws the self-lubricating of rail, elasticity tune force level wheels, for overhead traveling crane when operation, avoided overhead traveling crane wheel rim and rail track side generation heel and toe wear gnaw rail fault.
For achieving the above object, the technical solution adopted in the utility model is to provide a kind of anti-overhead traveling crane and gnaws the self-lubricating of rail, elasticity tune force level wheels, wherein: described horizontal wheels include pilot bar, guide holder, meniscus, base plate, thruster, auxiliary oscillating bearing, spring, locating rack, eccentric shaft, locating piece, bolt, supporting seat, main joint bearing, self-aligning roller bearing, gland, distance sleeve, saturating oily cotton pad, horizontal wheel, collet, rail, overhead traveling crane body, structure-steel framing; In the two sides of rail, be respectively equipped with a set of horizontal wheel, two cover self-aligning roller bearings are housed in every cover horizontal wheel, the upper surface of horizontal wheel is connected with gland, compresses the outer ring of self-aligning roller bearing, makes self-aligning roller bearing axial location in horizontal wheel; On structure-steel framing, by locating rack symmetry, fix two eccentric shafts, described two eccentric shaft bottoms and self-aligning roller bearing inner ring are connected by distance sleeve, eccentric shaft lower surface is connected with collet, holds in the palm tight self-aligning roller bearing inner ring, makes self-aligning roller bearing axial location on eccentric shaft; Described two eccentric shaft middle parts are bolted two locating pieces, and two locating piece bottoms are provided with the supporting seat of in-built main joint bearing, and supporting seat is fixed on the lower horizontal board of structure-steel framing; Between described two eccentric shaft tops, by auxiliary oscillating bearing, be connected with thruster respectively, thruster periphery is provided with spring, two side plates of locating rack are supported with pilot bar, and pilot bar is located on guide holder, and guide holder connects to form detachable rigid body by base plate and meniscus and eccentric shaft top.
Effect of the present utility model is that self-lubricating, elasticity adjust force level wheels to provide maximum correction power, is within each associated components intensity tolerance level of overhead traveling crane operation.Extremely secure for automatic protection capacity of equipment; even if there is unsmooth sudden change in certain position, the side of rail track; the irregular connection such as misplace between rail section; the horizontal wheel driving to is herein formed to sudden impact; this self-lubricating, elasticity adjust force level wheels still can react rapidly; the strong antagonism with rigidity, but with the impact of the mild this emergentness of flexible way, dissolve bring thus to himself and the huge destructive force of travelling overhead crane apparatus parts.
Accompanying drawing explanation
Fig. 1 is that self-lubricating, the elasticity that the anti-overhead traveling crane of the utility model is gnawed rail is adjusted the main pseudosection of force level wheels;
Fig. 2 is that self-lubricating, the elasticity that the anti-overhead traveling crane of the utility model is gnawed rail is adjusted force level wheels lateral plan.
In figure:
1, pilot bar 2, guide holder 3, meniscus 4, base plate 5, thruster
6, auxiliary oscillating bearing 7, spring 8, locating rack 9, eccentric shaft 10, locating piece
11, bolt 12, supporting seat 13, main joint bearing 14, self-aligning roller bearing
15, gland 16, distance sleeve 17, saturating oily cotton pad 18, horizontal wheel 19, collet
20, rail 21, overhead traveling crane body 22, structure-steel framing
Specific implementation method
By reference to the accompanying drawings anti-overhead traveling crane of the present utility model is gnawed to the self-lubricating of rail, the structure of elasticity tune force level wheels is illustrated.
In overhead traveling crane original design with while manufacturing, there is object easily occurring gnawing on the overhead traveling crane of rail Harm Type, as the biggest lifting capacity is not more than 50 tons, large span or long distance running overhead traveling crane, self-lubricating is set, elasticity is adjusted force level wheels.For on manufacturing line, there is gnawing rail phenomenon in the overhead traveling crane using, and needs to eliminate gnaw rail fault, can look its particular case, by the mode of scrap build, increases that anti-overhead traveling crane is gnawed the self-lubricating of rail, elasticity is adjusted force level Wheels group arrangement.
Anti-overhead traveling crane of the present utility model is gnawed self-lubricating, the elasticity of rail and is adjusted force level wheels, is arranged on the end of overhead traveling crane end carriage, the outside of running wheel.Regardless of overhead traveling crane, gnaw light, the heavy degree of rail, self-lubricating, elasticity are adjusted force level wheels, can tackle with light intelligent form.These horizontal wheels do not possess the ability of the wheel gnawing rail fault of fundamentally eliminating overhead traveling crane operation, but will alleviate greatly or dissolve, gnaw the harm that rail produces travelling overhead crane apparatus.Simultaneously self-lubricating, elasticity are adjusted a plurality of projects such as direction that force level wheels can be by reflection sideslip power, size, the displacement of car body, residing run location, to amplify and to be similar to the form of quantification, clear trend and the order of severity of gnawing rail that demonstrate, gnaws rail foundation is provided for further adopting other method to go to eliminate or alleviating overhead traveling crane.
First when sideslip tendency appears starting in overhead traveling crane operation, no matter this deviation phenomenon is inner side or the lateral direction towards overhead traveling crane end carriage, and self-lubricating, elasticity adjust force level wheels can provide fast a corresponding correction power, goes to slow down the degree of overhead traveling crane operation sideslip.When overhead traveling crane operation sideslip power is excessive, correction power can not stop sideslip power.Sideslip power causes overhead traveling crane operation to occur displacement towards a side of end carriage, and according to the increase of displacement, self-lubricating, elasticity are adjusted force level wheels, will automatically strengthen rapidly correction power and remove to stop overhead traveling crane operation sideslip.If the correction power continuing to increase this still cannot be prevented the continuation of overhead traveling crane motion deviation phenomenon, to such an extent as to the displacement that sideslip produces is increased to wheel rim and rail contacts side surfaces, occurs rubbing gnawing rail, yet now gnaws the very harmful reduction that rail produces.Because on the one hand self-lubricating, elasticity adjust force level wheels can provide lasting, a constant correction power overhead traveling crane is in service, remove to stop the sideslip of overhead traveling crane, just the sideslip power of overhead traveling crane is greater than correction power, remaining sideslip power is applied to the side of rail by wheel rim, the harm that at this moment wheel gnawing rail produces is impaired to lower degree.Self-lubricating on the other hand, elasticity tune force level wheels, by the rail side being in contact with it through place automatic, continuous continual coat very thin, uniform lubricating oil oil film.When wheel rim and rail side occur gnawing rail, oil film is being brought into play lubricating effect, slows down equally greatly wearing and tearing harm each other.The advantage that this mode is lubricated: can be coated with lubricating oil to rail two sides simultaneously, not have lubricating oil exist with wheel on the rail tread contacting, when actv. avoids overhead traveling crane walking to start or stop, skidding appears in wheel on rail level.
Self-lubricating, elasticity tune force level wheel group structure that anti-overhead traveling crane of the present utility model is gnawed rail are that described horizontal wheels include pilot bar 1, guide holder 2, meniscus 3, base plate 4, thruster 5, auxiliary oscillating bearing 6, spring 7, locating rack 8, eccentric shaft 9, locating piece 10, bolt 11, supporting seat 12, main joint bearing 13, self-aligning roller bearing 14, gland 15, distance sleeve 16, saturating oily cotton pad 17, horizontal wheel 18, collet 19, rail 20, overhead traveling crane body 21, structure-steel framing 22.
In the two sides of rail 20, be respectively equipped with a set of horizontal wheel 18, two cover self-aligning roller bearings 14 are housed in every cover horizontal wheel 18, the upper surface of horizontal wheel 18 is connected with gland 15, compresses the outer ring of self-aligning roller bearing 14, makes self-aligning roller bearing 14 axial location in horizontal wheel 18.Oily cotton pad 17 is housed between described gland 15 and horizontal wheel 18, between gland 15 and horizontal wheel 18, forms the annular oil cavity of sealing.
On structure-steel framing 22, by locating rack 8 symmetries, fix two eccentric shafts 9, described two eccentric shaft 9 bottoms and self-aligning roller bearing 14 inner rings are connected by distance sleeve 16, between by distance sleeve 16, separated, eccentric shaft 9 lower surfaces are connected with collet 19, hold in the palm tight self-aligning roller bearing 14 inner rings, make self-aligning roller bearing 14 axial location on eccentric shaft 9.Due to the horizontal wheel 18 and rail 20 contacts side surfaces of rotating, the diametral load of generation, passes to eccentric shaft 9 bottoms by two cover self-aligning roller bearings 14, does not affect horizontal wheel 18 with respect to the rotation of eccentric shaft 9 simultaneously.
Described two eccentric shaft 9 middle parts connect by bolt 11 supporting seat 12 that 10, two locating piece 10 bottoms of two locating pieces are provided with in-built main joint bearing 13, and supporting seat 12 is fixed on the lower horizontal board of structure-steel framing 22; The main joint bearing 13 of the strong point, ensures that eccentric shaft 9 swings flexibly as fulcrum.The bearing force of eccentric shaft 9 effects, by supporting seat 12 and main joint bearing 13, is delivered on the lower horizontal board of structure-steel framing 22.Two locating pieces 10 are connected as a single entity by bolt 11 and eccentric shaft 9 middle parts, the weight of eccentric shaft 9 are supported on the inner ring of main joint bearing 13.
Between described two eccentric shaft 9 tops, by auxiliary oscillating bearing 6, be connected with thruster 5 respectively, thruster 5 peripheries are provided with spring 7, then again two eccentric shafts 9 when spring 7 tension force are applied to eccentric shaft 9 top on one side, and the thruster 5 of another side is usingd 8 one sides of locating rack as bearing surface, locating rack 8 is to be rigidly connected with structure-steel framing 22, and a side tension force of support spring 7 is delivered on structure-steel framing 22; Guide holder 2 makes eccentric shaft 9 swing in the axial restraint along rail 20 by pilot bar 1, but can radially wobble at it, prevents that eccentric shaft 9 from rotating arbitrarily simultaneously.Two side plates of locating rack 8 are supported with pilot bar 1, and pilot bar 1 is located on guide holder 2, and guide holder 2 connects to form detachable rigid body by base plate 4 and meniscus 3 with eccentric shaft 9 tops.Again can be with after adjusting the angle of rotation of eccentric shaft 9 without differential mode, then form rigid bodies with guide holder 2.
As shown in Figure 1, anti-overhead traveling crane of the present utility model is gnawed self-lubricating, the elasticity of rail and is adjusted force level wheels, has two cover horizontal wheel 18, when overhead traveling crane moves, can stop respectively overhead traveling crane to the medial and lateral sideslip of end carriage.Two cover self-aligning roller bearings 14 are housed in every cover horizontal wheel 18, and gland 15 is connected with the upper surface of horizontal wheel 18, pushes down the outer ring of self-aligning roller bearing 14, plays self-aligning roller bearing 14 in the axial location effect of horizontal wheel 18.9 times positions of eccentric shaft and self-aligning roller bearing 14 inner rings are connected, between by distance sleeve 16, separated, collet 19 is connected with eccentric shaft 9 lower surfaces, holds self-aligning roller bearing 14 inner rings, plays self-aligning roller bearing 14 in the axial location effect of eccentric shaft 9.Horizontal wheel 18 and rail 20 contacts side surfaces of rotating, the diametral load of generation, passes to eccentric shaft 9 bottoms by two cover self-aligning roller bearings 14, does not affect horizontal wheel 18 with respect to the rotation of eccentric shaft 9 simultaneously.Eccentric shaft 9 be take main joint bearing 13 as fulcrum, and when the whole sideslip of overhead traveling crane, horizontal wheel 18 produces horizontal displacement with respect to rail 20, and one of them horizontal wheel 18 touches rail 20 sides, and produces interaction force.Along with the increase of displacement, eccentric shaft 9 bottoms are outward-dipping, and its top slopes inwardly, and spring 7 is further compressed, and tension force increases, otherwise is applied to rail 20 sides by horizontal wheel 18.
As shown in Figure 1, 2, between horizontal wheel 18 and rail 20, the point of action of application force, to the distance of eccentric shaft 9 fulcrums, is its fulcrum to the point of action of spring 7 application forces apart from half.Be that horizontal wheel 18 and rail 20 side action power are 2 times of spring 7 tension force.Along with the variation of spring 7 amount of compressions, between horizontal wheel 18 and rail 20 sides, application force changes thereupon, and more serious its application force of overhead traveling crane car body sideslip is just larger.Effectively slow down because of overhead traveling crane car body sideslip, the wearing and tearing of wheel rim and rail side are alleviated.The main joint bearing 13 of eccentric shaft 9 strong points, ensures that eccentric shaft 9 swings flexibly as fulcrum.The bearing force of eccentric shaft 9 effects, by supporting seat 12 and main joint bearing 13, is delivered on the lower horizontal board of structure-steel framing 22.Two locating pieces 10 are connected as a single entity by bolt 11 and eccentric shaft 9 middle parts, the weight of eccentric shaft 9 are supported on the inner ring of main joint bearing 13.The tension force of spring 7 acts on the thruster 5 on its both sides, and thruster 5 is connected with eccentric shaft 9 tops by auxiliary oscillating bearing 6.When spring 7 tension force are applied to eccentric shaft 9 top on one side, and the thruster 5 of another side is usingd 8 one sides of locating rack as bearing surface, and locating rack 8 is to be rigidly connected with structure-steel framing 22, and a side tension force of support spring 7 is delivered on structure-steel framing 22.Guide holder 2 makes eccentric shaft 9 swing in the axial restraint along rail 20 by pilot bar 1, but can radially wobble at it, prevents that eccentric shaft 9 from rotating arbitrarily simultaneously.It is support that pilot bar 1 be take two side plates of locating rack 8.Guide holder 2, by base plate 4 and meniscus 3, forms detachable rigid bodies with eccentric shaft 9 tops and is connected, again can be with after adjusting the angle of rotation of eccentric shaft 9 without differential mode, then with guide holder 2 composition rigid bodies.The rotation of eccentric shaft 9, within the specific limits, changes the distance between horizontal wheel 18 and rail 20 sides, thereby can be according to on-the-spot actual state, and people is the share of horizontal wheel group to the harm of overhead traveling crane wheel gnawing rail for a change.Horizontal wheel 18 radially produce with rail 20 sides the power of confronting with each other, the power of rectifying a deviation, rail 20 is transmitted in ground by rail pressing plate and follower bolt, power in horizontal wheel 18 by structure-steel framing 22, be delivered on overhead traveling crane body 21, antagonism overhead traveling crane body 21 relative rail 20 sideslips, and the wheel rim occurring is gnawed rail phenomenon.
Between gland 15 and horizontal wheel 18, form annular oil cavity.In oil pocket, inject, store a certain amount of lubricating oil, its underpart is provided with oily cotton pad 17.By changing the compression degree of 15 pairs of saturating oily cotton pads 17 of gland, control and ooze out oil mass size.The lubricating oil going out from cotton pad circumference uniformly penetrating, forms oil film in the outer ring of horizontal wheel 18, and while contacting with rail 20 sides rotations, lubricating oil is evenly coated onto the side of rail 20.
Claims (2)
1. the self-lubricating that anti-overhead traveling crane is gnawed rail, elasticity is adjusted force level wheels, it is characterized in that: described horizontal wheels include pilot bar (1), guide holder (2), meniscus (3), base plate (4), thruster (5), auxiliary oscillating bearing (6), spring (7), locating rack (8), eccentric shaft (9), locating piece (10), bolt (11), supporting seat (12), main joint bearing (13), self-aligning roller bearing (14), gland (15), distance sleeve (16), saturating oily cotton pad (17), horizontal wheel (18), collet (19), rail (20), overhead traveling crane body (21), structure-steel framing (22),
In the two sides of rail (20), be respectively equipped with a set of horizontal wheel (18), two cover self-aligning roller bearings (14) are housed in every cover horizontal wheel (18), the upper surface of horizontal wheel (18) is connected with gland (15), compress the outer ring of self-aligning roller bearing (14), make self-aligning roller bearing (14) in the upper axial location of horizontal wheel (18);
At structure-steel framing (22), above by locating rack (8) symmetry, fix two eccentric shafts (9), described two eccentric shafts (9) bottom and self-aligning roller bearing (14) inner ring are connected by distance sleeve (16), eccentric shaft (9) lower surface is connected with collet (19), hold in the palm tight self-aligning roller bearing (14) inner ring, make self-aligning roller bearing (14) in the upper axial location of eccentric shaft (9);
Described two eccentric shafts (9) middle part connects two locating pieces (10) by bolt (11), and two locating pieces (10) bottom is provided with the supporting seat (12) of in-built main joint bearing (13), and supporting seat (12) is fixed on the lower horizontal board of structure-steel framing (22);
Described two eccentric shafts (9) are connected with thruster (5) by auxiliary oscillating bearing (6) respectively between top, thruster (5) periphery is provided with spring (7), two side plates of locating rack (8) are supported with pilot bar (1), it is upper that pilot bar (1) is located at guide holder (2), and guide holder (2) connects to form detachable rigid body by base plate (4) and meniscus (3) with eccentric shaft (9) top.
2. force level wheels are adjusted in anti-overhead traveling crane is gnawed rail according to claim 1 self-lubricating, elasticity, it is characterized in that: between described gland (15) and horizontal wheel (18), oily cotton pad (17) is housed, between gland (15) and horizontal wheel (18), forms the annular oil cavity of sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142490.4U CN203794461U (en) | 2014-03-27 | 2014-03-27 | Self-lubricating elastic force adjustment horizontal wheel group capable of preventing crane from gnawing rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420142490.4U CN203794461U (en) | 2014-03-27 | 2014-03-27 | Self-lubricating elastic force adjustment horizontal wheel group capable of preventing crane from gnawing rail |
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| Publication Number | Publication Date |
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| CN203794461U true CN203794461U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420142490.4U Expired - Lifetime CN203794461U (en) | 2014-03-27 | 2014-03-27 | Self-lubricating elastic force adjustment horizontal wheel group capable of preventing crane from gnawing rail |
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| CN (1) | CN203794461U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516977A (en) * | 2016-12-15 | 2017-03-22 | 沪东中华造船(集团)有限公司 | Device for preventing rail gnawing of derrick type driving trolley |
| CN107826976A (en) * | 2017-11-29 | 2018-03-23 | 株洲天桥起重机股份有限公司 | Horizontal wheels group position adjustments method and adjustable horizontal wheel group structure and its crane |
| CN109650254A (en) * | 2018-12-27 | 2019-04-19 | 江苏核电有限公司 | A kind of nuclear power station ring hangs horizontal wheels used |
-
2014
- 2014-03-27 CN CN201420142490.4U patent/CN203794461U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516977A (en) * | 2016-12-15 | 2017-03-22 | 沪东中华造船(集团)有限公司 | Device for preventing rail gnawing of derrick type driving trolley |
| CN107826976A (en) * | 2017-11-29 | 2018-03-23 | 株洲天桥起重机股份有限公司 | Horizontal wheels group position adjustments method and adjustable horizontal wheel group structure and its crane |
| CN107826976B (en) * | 2017-11-29 | 2019-09-24 | 株洲天桥起重机股份有限公司 | Horizontal wheels group position adjusting method and adjustable horizontal wheel group structure and its crane |
| CN109650254A (en) * | 2018-12-27 | 2019-04-19 | 江苏核电有限公司 | A kind of nuclear power station ring hangs horizontal wheels used |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190702 Address after: No. 396 Jintang Highway, Dongli District, Tianjin 300301 Patentee after: Tianjin Steel Tube Manufacturing Co.,Ltd. Address before: No. 396 Jintang Highway, Dongli District, Tianjin 300301 Patentee before: TIANJIN PIPE (GROUP) Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
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| CX01 | Expiry of patent term |