CN100494731C - Reducer for gantry crane - Google Patents

Abstract

Provided is a reduction gear for a transfer crane which has a rational side in engineering and is capable of facilitating the fulfillment of product systems, cost reductions, and delivery time shortening. This reduction gear G for a transfer crane, used for driving the transfer crane loading and unloading containers and the like, comprises a hypoid pinion 108 rotated by the rotation power inputted from motor M side; and a hypoid gear 110 engaging with the hypoid pinion 108. On the downstream stage, a one-stage parallel shaft gear set 113 is coupled.

Description

The frame crane retarder

Technical field

The present invention relates to a kind of retarder that is used to drive the frame crane of loading and unloading container etc.

Background technique

Frame crane is for general on carrying, the loading that the Container yard in bay etc. carries out shipping container etc., and rated load is 30 tons to 60 tons degree.Known frame crane has two types of rail mounted and tyre types.The orbit type gantry car has steel wheel, walks on the track of regulation.The tyre-type gantry crane has rubber tyre, can be on railless road surface walking freely (for example, opening flat 11-79409 number) with reference to the Japanese patent gazette spy.

Frame crane has weight in outdoor application, and is all (frame crane body) the mobile self-propelled types of crane, therefore, generally carries diesel engine, and generator is rotated, thereby obtains the electric power of driving source (motor).

Fig. 6 is the front view of a part of the travel driving unit of expression frame crane, and the wheel 10A that is positioned at the right side of figure is a driving wheel, and the wheel 10B that is positioned at the left side is a follower.Shown in ideograph among Fig. 7, bottom at frame crane, rectangle to the relevant position of angular vertex on also be provided with one group and have above-mentioned relating to and drive and a pair of wheel 10A of driven combination, the drive system of 10B, on the relevant position, summit at other diagonal angle, disposing only driven pair of driven 10B, 10B respectively.

Return Fig. 6, motor 12 links by shaft coupling 14 and retarder 16.Frame crane because of the problem that is provided with on the space, generally is installed in the oblique upper of driving wheel 10A with retarder 16.The relation of the axis direction of the axis direction of motor reel (live axle) 12A during in addition, from installation retarder 16 and the axletree 10C of wheel 10A considers that this retarder 16 should be an orthogonal type.Therefore, frame crane usually, as shown in Figure 8, carries the cone gear group 34 that is made of small conical gear 30 and cone gear 32 with in the retarder 16 in prime.The reason of carrying cone gear group 34 for the realization quadrature is to be inferred as and to consider that mainly cone gear group 34 is the most appropriate aspect cost and transmission efficiency.

Only carry out the one-level deceleration and can not obtain driving the necessary reduction speed ratio of frame crane by cone gear group 34, therefore, its structure is the parallel- axes gears group 36,38 that links two-stage in the back level of cone gear group 34, by comprising that cone gear group 34 amounts to 3 grades of reducing gears and drives output shaft 40.

Referring again to Fig. 6, chain gear 42 is installed on the output shaft 40 of this retarder 16.In addition, 44, two chain gear of chain gear 42,44 also being installed on the axletree 10C of wheel 10A is linked mutually by chain 46.

The rotation of motor 12 parallel- axes gears group 36,38 and each reducing gear such as chain 46 by 34,2 grades of cone gear groups is decelerated and is delivered to axletree 10C, and the rotation by this axletree 10C comes swivel wheel 10A.

To be used to realize that the certain cost of cone gear group is lower under the situation of reducing gear as monomer of quadrature, efficient is also high in addition.And, though the cone gear group has the bigger shortcoming of running noise,, this shortcoming is not very big shortcoming in the Environmental Conditions of frame crane yet.

Therefore,, as the reducing gear of realizing quadrature, use the cone gear group with assuming as a matter of course, and do not adopt reducing gear in addition with in the retarder at existing frame crane.

But, the inventor has distinguished following situation, for the retarder that is used in the frame crane, from the producer's that retarder is provided position, and user's position, from the technical result who carries out deep investigation, find that so far the cone gear group of use may not necessarily be brought best result in the nature of things.

Summary of the invention

The present invention is based on that this opinion finishes, and its objective is that providing a kind of has a rational one side and enrich the frame crane retarder that product system, cost are lower, shorten the time of delivery easily from technical.

For realizing described purpose, frame crane retarder of the present invention, be used for frame crane, it has hypoid gear (Ha イ Port イ De ギ ヤ) group, this hypoid gear group has by hypoid pinion (Ha イ Port イ De ピ ニ オ Application) that is rotated from the rotating power that drives the source input and the hypoid gear that meshes with this hypoid pinion, on the back level of this hypoid gear group, linking one-level parallel-axes gears group, and with the deboost axle of this parallel-axes gears group output shaft as this retarder.

Among the present invention, the reducing gear as the quadrature of realizing retarder has adopted the hypoid gear group.It the reasons are as follows described.

First reason is, can reduce all costs of product system (series), and the result is can reduce the manufacture cost of each retarder, and shorten the time of delivery.

As previously mentioned, will be used to realize that the cone gear group is cheap really under the situation of reducing gear as monomer of quadrature, efficient is also high in addition.

But, when using the cone gear group, the absolute value of the reduction speed ratio that can select is little, in order to ensure necessary reduction speed ratio (10～40 in the purposes of frame crane, be generally 14～32), need on this cone gear group, link three grades of type speed reducers of the parallel-axes gears group of two-stage.In addition, the scope of selectable reduction speed ratio is little, therefore, according to the scope of the total reduction speed ratio that need enlist the services of, guarantee as product system, also needs the retarder of 2 grades of types in addition.

The retarder of 3 grades of types is all very big from any one aspect of size, weight, directly causes the increase of cost.In addition, among the both sides of 2 grades of types and 3 grades of types, in order to improve the product group of other purposes, must otherwise designed comprise a plurality of members of housing, further improved whole cost.Therefore, (even adopt the cone gear group of monomer cheapness) is applicable to that frame crane with under the situation of (nominal torque is greater than 6kNm's) retarder, also may not necessarily reduce the cost of each.

To this, the hypoid gear group can enlarge the adjustment range of reduction speed ratio, in 1 grade, can obtain bigger reduction speed ratio, therefore, can obtain as the desired most reduction speed ratio of the driving of frame crane, thereby, the step of reduction that makes this retarder be hypoid gear group and parallel-axes gears group to amount to two-stage just passable.

Thus, not only She Ji load roughly reduces by half, and all number of components of series are reduced, and especially, can promote the communization of large components such as reducing gearbox, running shaft, various gears.Therefore, can alleviate stock's burden, the result can reduce the cost of each retarder.

Second reason be, because can replace 3 grades with 2 grades, can realize lightweight, the miniaturization of retarder.

And, even compare, use the retarder of hypoid gear group to compare with the retarder that uses the cone gear group with 2 grades of same types, the axle center of hypoid pinion and the axle center of hypoid gear do not intersect, and therefore, still can make pinion shaft to miniaturization.

The miniaturization of retarder becomes frame crane that the space the is subjected to severely restricts big advantage with retarder is set.In addition, under the situation of identical external form, mean the retarder that can use capacity bigger, and, can make the design of the durability raising of this retarder.

The 3rd reason is that the reverse-rotation preventing function that the hypoid gear group is had is acting in the purposes of frame crane effectively.

The reverse-rotation preventing function of hypoid gear group is stronger than cone gear group.Here said reverse-rotation preventing function is meant, utilizes the counter-force or the inertial force that apply from the output shaft of load side (wheel side) by retarder, stops the function of input shaft of speed reducer side (motor side) rotation.

In the existing cone gear group, almost do not have reverse-rotation preventing function, when frame crane slowed down, the inertial force of wheel side caused the output shaft rotation of retarder, and this rotating power almost is passed to motor side unchangeably by this input shaft of speed reducer.Therefore, the deceleration loading of frame crane is fully by the arrestment mechanism burden that is affixed on the motor, and this arrestment mechanism must have corresponding strength countermeasure and heat radiation countermeasure.

In contrast to this, the hypoid gear group has stronger reverse-rotation preventing function, therefore, even the inertial force of wheel side causes the output shaft rotation of retarder, the part of this rotating power is blocked by the part of hypoid gear group, can reduce the proportion that arrives motor side.

Its result, can relax the intensity countermeasure or the heat radiation countermeasure of the arrestment mechanism that is attached to motor side more, in addition, set up under the situation about having with the arrestment mechanism of existing equal performance, more reliable and stable braking effect can be obtained, and durability can be improved.

The 4th reason is, relevant with the 3rd reason, carry in the frame crane of retarder of the present invention, apply appropriateness deceleration (weak), similar engine brake during deceleration and promote power, therefore, under the situation, only just can realize acceleration and deceleration at an easy rate when going slowly etc. by accelerator work.That is, when occupying the more than half low cruise of operation, do not need to repeat continually to quicken operation and brake operating just can be finished, can improve operator's driving operation.

(as the 5th reason) in addition on the characteristic of hypoid gear, compared with the situation of using the cone gear group, can expect the reduction of running noise in Environmental Conditions.

Like this, among the present invention, use in the retarder at frame crane, as the reducing gear that is used to realize its quadrature, adopt the hypoid gear group, and retarder all is 2 grades of types, therefore, can obtain adopting existing cone gear group retarder (perhaps gear series reducer) the plurality of advantages that can not obtain.

And, as concrete variation of the present invention, for example its structure is, described hypoid pinion has and the head of described hypoid gear engagement and the tube portion beyond this head, and, also has coupling shaft, end face a side of this coupling shaft is provided with the 1st recess that can insert described drive source drives axle, be provided with the 2nd recess of the tube portion that can insert described hypoid pinion at the opposing party's end face, the 1st recess, the 2nd recess is coaxial, described coupling shaft is housed in the housing by bearing, and, this retarder can be attached in the housing that drives source by the housing of accommodating this coupling shaft.

In this case, the housing of accommodating this coupling shaft can be into a single integrated structure with the housing of retarder body, also can constitute respectively.

In the field of the drive unit of frame crane, generally the situation that driving source (motor) and retarder are purchased respectively is more.That is it is quite a few that the motor that, requires and (perhaps decision is installed) be installed is installed the situation of retarder suitably.

Therefore, in the prior art, with the explanation that Fig. 6 did, the general employing by shaft coupling is installed to method on the motor with retarder as.But this installation method becomes makes motor and all elongated, the installing space cause of increased of axial length of retarder.

Possesses the coupling shaft of structure as mentioned above, and when linking motor and retarder by this coupling shaft, not only can shorten all axial lengths of motor and retarder, can also be by the 2nd concave depth (axial length) of coupling shaft and the change of internal diameter, can assemble, support diversified hypoid pinion at an easy rate, and, can also set arbitrarily the axial position of its head.

In addition, by make up this structure and use bearing shim with hypoid gear be installed to jack shaft axially on the structure of arbitrary position, can be with the hypoid pinion and the combination of hypoid gear arbitrarily arbitrarily, be assembled in the same housing with having no obstacle, can adjust reduction speed ratio at an easy rate.

In addition, by the change of the 1st concave depth (axial length) and internal diameter, corresponding various motor can make retarder install with matching, can realize being provided with the minimizing in space, increase the adaptability of retarder self to motor simultaneously.

About being equipped with the advantage that coupling shaft brought, the back will be described in detail.

And generally more than 6kNm, reduction speed ratio is 14～32 degree to the nominal torque that can work with retarder as frame crane.If this scope is utilized and has been used 2 grades of type speed reducers of hypoid gear group of the present invention just to be enough to correspondence.

Description of drawings

Fig. 1 is the sectional view of the frame crane of the expression embodiment of the invention with the structure of retarder and motor binding;

Fig. 2 is the view of the arrow II direction of presentation graphs 1;

Fig. 3 is near the amplification view of the major component of the shaft coupling of presentation graphs 1;

Fig. 4 is the summary front section view of expression other embodiments' of the present invention frame crane with the structure of retarder and motor binding;

Fig. 5 is the general profile chart that is used to illustrate the inclosure state of lubricant oil;

Fig. 6 is near the major component front view of the structure of wheel of the existing straddle truck drive device for vehicle of expression;

Fig. 7 is the planimetric map of configuration structure of the wheel of pattern ground expression frame crane;

Fig. 8 is the sectional view of the existing frame crane of expression with retarder.

Embodiment

Below, based on accompanying drawing embodiments of the invention are elaborated.

The basic power transmission structure of the motor～retarder among this embodiment～chain～axletree and the existing structure that has illustrated are roughly the same, therefore, have omitted repeat specification, here, are that the center is elaborated with frame crane with the structure of retarder periphery.

Fig. 1 and Fig. 2 represent near the structure motor (driving source) M and the retarder G.Fig. 3 is the major component enlarged view of Fig. 1.

Motor M has transducer 104 and break 106 in an opposite side of the load side of its motor reel 102, by operator's operation, and acceleration of the best in can walking at any time and braking control.

During the non-running of break 106 when comprising that motor stops, thereby make the work locking of the machinery in the time of can realizing stopping of whole braking force, when walking, can carry out suitable adjustment to the degree of this braking according to operator's acceleration and brake operating etc.

This break 106, as described later, the reverse-rotation preventing function of the hypoid gear group in the retarder is higher than existing cone gear group, so its Capacity Ratio is existing low.And, capacity still keep with existing identical situation under, can obtain braking effect more reliably.

Motor M is connected by J of coupling shaft mechanism and retarder G side.

Retarder G as its elementary reducing gear, has hypoid gear group 112, and this hypoid gear group 112 has hypoid pinion 108 and hypoid gear 110, and, thereafter the level on, have other 1 grade parallel-axes gears group 113.Because be the frame crane retarder, the nominal torque of this retarder G specifically is set near the 10kNm greater than 6kNm (generally being greater than 9kNm).Nominal torque is greatly the feature of frame crane with retarder G.And among the present invention, frame crane is not specially limited with the upper limit of retarder, generally uses up to about 16kNm the torque in the scope of (most to about 12kNm).

Carry out more specific description below.

The J of coupling shaft mechanism has coupling shaft 114.On this coupling shaft 114, form the 1st recess 116 and the 2nd recess 118 respectively coaxially to center side from its axial both ends of the surface lateral axis.Motor reel 102 is inserted in the 1st recess 116, by key 120 and coupling shaft 114 on sense of rotation by integrated.

On the other hand, the hypoid pinion 108 of hypoid gear group 112 has: have offset E, and and the head 108A of hypoid gear 110 engagement, and coaxial and have cylindrical part cylindraceous (tube portion) 108B of step with this head 108A.On the periphery of the 108B of this, carried out annular knurl processing, be inserted into and be crimped onto in the 2nd recess 118 of described coupling shaft 114, thus with this coupling shaft 114 being integral on sense of rotation.

The bottom 118A of the 2nd recess 118 by coupling shaft 114 and the end 108C butt of hypoid pinion 108 constitute the benchmark wall portion that has determined with respect to the axial position of the coupling shaft 114 of this hypoid pinion 108.

And, though be not illustrated, from this benchmark wall portion (118A) that a side of the 1st recess runs through coupling shaft 114, thereby when bolt etc. being screwed on the axis central part of hypoid pinion 108, at this moment, can keep the combination of hypoid pinion 108 and coupling shaft 114 more strongly.

On the periphery of coupling shaft 114, form the protuberance 114A of ring-type, and stipulated can be with respect to the distance between the pair of bearings 150,152 of the housing 140 free rotary ground supporting coupling shafts 114 of retarder G.

Form engaging protrusion 140A on the end of interior all sides of housing 140, be used for engaging the bearing 150 of head 108A one side this pair of bearings 150,152, that have hypoid pinion 108.Bearing 150 quilts are seized on both sides by the arms between the protuberance 114A of the ring-type of this engaging protrusion 140A and coupling shaft 114 and are positioned in the axial direction.And, the groove that symbol 156 expression bearing shims, 158 expressions have the ring-type of trapped fuel function.

Hypoid gear 110 is assembled on the jack shaft 160 by key 162.Jack shaft 162 can be supported in the housing 140 by bearing 164,166 with rotating freely.The jack shaft 160 of hypoid gear 110 axially on the location, be to be undertaken by the stepped part 160A that forms on this jack shaft 160 and the elasticity baffle ring 170,172, bearing 164,166 and the pad 176 that are assembled on the housing 140.Small gear 180 is directly processed on jack shaft 160, forms 1 grade parallel-axes gears group 113 in addition by the engagement (the back level of hypoid gear group 112) with gear 182.Gear 182 is linked on the output shaft 184 by key 186.Output shaft 184 can be assembled on the housing 140 by bearing 188,190 with rotating freely.

Because used Fig. 6 to be illustrated, omit repeat specification and diagram once more, its structure is that chain gear (42) is installed on the output shaft 184, and makes wheel (10A) rotation by chain (46).

; use the transmission of power of hypoid gear group 112; be the transmission that is accompanied by slip on its structure, it merely be applicable under the situation in the retarder of the such high power capacity of frame crane, high torque (HT), according to different loading conditions sometimes durability can reduce.Therefore, in this embodiment,, use the gear oil that contains extreme pressure agent as the oiling agent of this retarder G.Extreme pressure agent is the additive that adds for the anti-load energy (extreme pressure energy) that improves the lubricant oil in the critical lubricating condition.Specifically, can be that lead soap or sulphur phosphorus are extreme pressure agent.

Moreover, in this embodiment, as the oiling agent of this retarder, use in the described gear oil, especially the k value during 40 ℃ of oil temperature is for greater than 68cSt and less than the gear oil of 320cSt.

It is the reasons are as follows.That is, in the prior art,, consider durability, the high viscosity oiling agent that uses the hypoid gear group to use usually as the oiling agent that with the general service is the hypoid gear group 112 of purpose.But, the hypoid pinion 108 of hypoid gear group 112 and the engagement of hypoid gear 110, compare with the engagement of cone gear 32 with the cone pinion 30 of the cone gear group 34 shown in Fig. 8, originally just be accompanied by more slip, so under the situation about adopting in the transfer mechanism of the such high power capacity of frame crane, high torque (HT), the viscosity that causes oil reduces because temperature rises, becoming the reason of the oil film breach that causes on the flank of tooth, is desired anything but.On the other hand, the retarder G of frame crane has suitable internal capacity, therefore can preserve (viscosity is low) gear oil in a large number.Therefore, use this gear oil to obtain the method reliability height of cooling effect by splashing, from this viewpoint, preferably viscosity is suppressed at below the 320cSt.

But viscosity is crossed when low, can not fully guarantee the oil film between (be accompanied by slide and engagement) flank of tooth, neither expect.Optimal viscosity is the scope of 68cSt～320cSt, and what be more suitable for is the scope (value when being oily warm 40 ℃) of 100cSt～220cSt.

Certainly, among the present invention, the kind with regard to oiling agent does not limit especially.

And, as the material of described hypoid pinion or hypoid gear, preferably Cr-Mo steel.Cr-Mo steel is the special steel that can further improve the durability of hypoid gear group.

And among this embodiment, the housing of the J of coupling shaft mechanism part and housing 140 being integral of retarder body under the situation of paying attention to exchangeability or replacement property, also can be separated it.

Below this embodiment's of explanation effect.

When the motor reel 102 of motor M rotated, coupling shaft 114 rotated integratedly with it, and hypoid pinion 108 is rotation integratedly also.Here, the protuberance 114A of the engaging protrusion 140A by housing 140, bearing 150, coupling shaft 114, the relative housing 114 of the benchmark wall 118A of portion of the recess 118 of coupling shaft 114 is positioned in the axial direction, hypoid pinion 108 is by end 108C of itself and the butt of the benchmark wall 118A of portion, coupling shaft 114 is positioned in the axial direction relatively, therefore, hypoid pinion 108 relative housings 140 itself axially on the location can carry out very exactly.

In addition, because be that hypoid pinion 108 is fitted to the structure in the 2nd recess 118 of coupling shaft 114, the length of the degree of depth (axial length) by adjusting the 2nd recess 118 or the 108B of tube portion of hypoid pinion 108 can be adjusted the axial position of its head 108A.

On the other hand, by the existence of described bearing shim 156, can adjust the bearing play that is used to prevent bearing 150 and bearing 152 burn-backs.

Thus, the hypoid gear group (112) of the hypoid pinion (108) of size (number of teeth) and the combination of the hypoid gear (110) of size (number of teeth) arbitrarily is installed in the housing 140 with can having no obstacle arbitrarily, and can be adjusted into desired reduction speed ratio.

Its result only just can realize frame crane with the necessary reduction speed ratio 10～40 of retarder (general 14～32) by 2 grades of reducing gears, and these various hypoid gear groups (112) can be housed in (identical 2 grades) housing 140.

In addition, compare with existing 3 grades of types, retarder itself is miniaturization more certainly, compares also miniaturization more with the existing 2 grades of types that use the cone gear group.

And, by using coupling shaft 114, the motor reel 102 of hypoid pinion 108 that can head 108A is different and identical motor M links, therefore, even the identical drive system that also can construct the frame crane of various deceleration characteristics of motor (driving source).

In addition, which kind of motor no matter the change of the 1st recess 116 by coupling shaft 114 even motor reel 102 differences also can match it and are attached on it in retarder G side, therefore, be installed with on the frame crane, can be corresponding neatly.And under the different situation of motor, the size majority of this housing is also different, in this case, by installation adapter (ア ダ プ ) etc., also can adjust the connection of the reducer shell of relative motor field frame.

The result, because the existence of coupling shaft 114 by any one party of its 1st recess the 116, the 2nd recess 118 or both sides' change, can be assembled into the hypoid gear group of any reduction speed ratio in the housing 140 of retarder G with having no obstacle, and, it can be attached to arbitrarily on the driving source.Thus, can guarantee the diversity of retarder, realize that consequently further cost reduces, the time of delivery shortening the selection and the installation of motor.

In addition, the axial length under motor M and the retarder G connecting state can be shortened greatly, also installing space can be reduced.

Here, in hypoid gear group 112, have from the transmission of power of small gear side direction gear side and can successfully carry out and the characteristics that are difficult to than cone gear group to the transmission of power of small gear side from gear side to carry out.That is, hypoid gear group 112 is compared with the cone gear group, and its foregoing reverse-rotation preventing function is higher.Therefore, frame crane is under the deceleration regime, and when forming from the contrary drive condition of the what is called of wheel 10A side direction motor M side transferring power, hypoid gear group 112 can be undertaken the function of a part that stops its transmission of power.

Therefore,, also can obtain braking function same as the prior art, can alleviate to respective amount the intensity countermeasure and the heat radiation countermeasure of break 106, and can reduce its cost and weight even the capacity of break 106 reduces.In addition, install under the situation with the identical break of prior art, can obtain reliable more braking effect.

And, when slowing down, can obtain the some deceleration promoting effect similar with the so-called engine braking of general vehicle, therefore, especially in the walking of (frame crane frequently carries out) low speed, only just can easily carry out its acceleration and deceleration, can make operator's running operation raising by accelerator work.

In addition, because use hypoid gear group 112, the noise during running can reduce compared with the existing greatly.

Fig. 4 has represented other embodiments of the present invention.

Among this embodiment, axle center O1, the O2 that has assembled the jack shaft 260 of hypoid gear 210 and the both sides of output shaft 284 is configured on the rectangular single plane of axle center O3 (plane vertical with the paper of Fig. 4) P with hypoid pinion 208.That is, the axle center O3 of the hypoid pinion 208 in the retarder G2 (and motor M2) is vertical with output shaft 284 both sides' axle center O1, O2 with jack shaft 260.And under this embodiment's situation, from plane view (from Fig. 4 top), the axle center O3 of hypoid pinion 208 is between the axle center O2 of the axle center of jack shaft 260 O1 and output shaft 284.Consequently, the axial length of the hypoid pinion 208 of retarder G2 (axial length of motor M2) L can be shorter than last embodiment, and the overall dimensions miniaturization more under the state of motor M2 has been installed.In addition, can lower the center of gravity in shape, and further improve mounting stability.

In addition, among this embodiment, shown in Fig. 4 and Fig. 5 (A), this plane P is a horizontal plane.That is, this retarder G2 can be installed on the not shown frame crane, and make plane P become horizontal plane parallel to the ground.In addition, housing 240 is that the border can be divided into enclosure body 240A, 240B up and down with the plane P of this level.Therefore, carry out easily jack shaft 260, output shaft 284, and other retarder G2 in the assembling of each constitutive requirements, in addition, the pasta OL1 of the lubricant oil OL of retarder G2 can be set in the below on the mating face (plane P) of this enclosure body 240A, 240B.Therefore, by and Fig. 5 (B) shown in last embodiment's housing 140 compare and can know, need not worry oil leak, in addition, can be lubricated by oil mass still less.Especially, when hypoid gear 210 is lubricated, can expect, therefore, can reduce the misgivings of the sintering that insufficient lubrication causes, can further improve durability from the lubricant oil OL of output gear 282 " splashing ".

Therefore, can obtain miniaturization, stability is high, assembling performance is good and durability is high retarder.

Other structures are identical with last embodiment, therefore omitted repeat specification.

The invention effect

By the present invention, can obtain a kind of Deceferator for gantry crane, technical have more Rational side, and enrich easily product system, can realize more cost degradation, delivery The excellent results such as time limit shorteningization.

Claims (13)

1. a frame crane retarder is used for frame crane, it is characterized in that,

Have the hypoid gear group, this hypoid gear group has by hypoid pinion that is rotated from the rotating power that drives the source input and the hypoid gear that meshes with this hypoid pinion;

The parallel-axes gears group that on the back level of this hypoid gear group, is linking one-level, and with the deboost axle of this parallel-axes gears group output shaft as described retarder.

2. frame crane retarder according to claim 1 is characterized in that,

Described hypoid pinion has with the head of described hypoid gear engagement and the tube portion beyond this head;

Also have coupling shaft, be provided with the 1st recess that can insert described drive source drives axle at a side end face, be provided with the 2nd recess of the tube portion that can insert described hypoid pinion at the opposing party's end face, described the 1st recess, the 2nd recess are coaxial;

By bearing described coupling shaft is housed in the housing;

Described retarder can be attached in the housing that drives source by the housing of accommodating this coupling shaft.

3. frame crane retarder according to claim 2 is characterized in that, at least one side in the length of the tube portion by adjusting described the 2nd concave depth or hypoid pinion can adjust the axial position of the head of described hypoid pinion.

4. according to each described frame crane retarder in the claim 1～3, it is characterized in that,

Described hypoid gear is installed on the jack shaft, and, possess and can adjust the pad of the axial position of the described hypoid gear of this jack shaft relatively;

By the existence of this pad, can adjust the mounting point of this hypoid gear on jack shaft.

5. according to claim 2 or 3 described frame crane retarders, it is characterized in that,

By using described coupling shaft, the different hypoid pinion of described head can link with the described live axle of identical driving source.

6. according to claim 2 or 3 described frame crane retarders, it is characterized in that,

The change of described the 1st recess by described coupling shaft can be attached on the described live axle of different driving sources.

7. according to claim 2 or 3 described frame crane retarders, it is characterized in that,

Described the 1st recess by described coupling shaft, at least one side's of the 2nd recess change, multiple hypoid pinion can link with the described live axle of different driving source.

8. according to each described frame crane retarder in the claim 1～3, it is characterized in that,

Be assembled with described hypoid gear the axle and described output shaft the two, all be set at rectangular single plane, the axle center of described hypoid pinion on.

9. frame crane retarder according to claim 8 is characterized in that,

The enclosure body of described retarder is that the border can be cut apart with described single plane.

10. frame crane retarder according to claim 9 is characterized in that,

Described single plane is become under the state of horizontal plane parallel to the ground, described retarder can be installed on the frame crane.

11. a frame crane retarder is used for frame crane, it is characterized in that,

At least have by hypoid pinion that is rotated from the rotating power that drives the source input and the hypoid gear that meshes with this hypoid pinion,

And nominal torque is set at greater than 6kNm.

12. frame crane retarder according to claim 11 is characterized in that,

As the lubricant oil of this retarder, use the gear oil that contains extreme pressure agent, obtain the cooling effect that produces by splashing.

13. according to claim 11 or 12 described frame crane retarders, it is characterized in that,

As the lubricant oil of described retarder, the viscosity when using oily temperature to be 40 ℃ is greater than 68cSt and less than the gear oil of 320cSt.

Images