CN206088804U - Bridge crane and braking system thereof - Google Patents

Abstract

The utility model relates to a hoisting equipment field discloses a bridge crane and braking system thereof, bridge crane is including power device (1), reduction gear (2) and the reel of transmission connection in proper order, braking system including set up in two at least stopper (3) on fast axis (21) of reduction gear (2). The utility model discloses a when braking system can can not provide good brake force in one of them stopper (3), can start other stoppers (3) to the heavy object of ensureing the handling can not drop. In addition, at the operation in -process, can control to making a plurality of stoppers (3) apply brake force jointly to reduce the local stress on fast axis (21), reduce to take place the possibility of disconnected axle. Therefore, the utility model discloses a braking system can provide safe, reliable braking.

Description

Bridge crane and its brakes

Technical field

The utility model is related to crane gear, in particular it relates to a kind of brakes for bridge crane.Additionally, The utility model further relates to a kind of bridge crane including the brakes.

Background technology

Bridge crane is the crane gear that crossbearer carries out material handling in vehicle frame, warehouse and stock ground overhead, and it is generally logical The tracks travel that two ends are seated in tall and big supporting construction (such as metallic support) and can be along laying on this support structure is crossed, So as to not hindered by ground installation using crane span structure space below handling material.

Usually, bridge crane includes motor, brake, decelerator, reel and assembly pulley etc..In operation process, Motor drives spool turns by decelerator, so that wire rope roll is wound on reel or from the reel release, so as to lift connection To the weight of steel cord ends.Brake is used to stall reel so that the weight of handling is tentatively held in certain altitude position Put, to transport at the height and position.

Bridge crane is in long-time, after frequent use, it may appear that the problems such as components aging, failure, exists and slips hook, bite Etc. potential safety hazard.For example, during transhipment weight, if brake is due to aging and can not keep good braking, weight Action of Gravity Field may cause to slip hook, the person, property loss are caused when serious.

In view of this, it is necessary to which existing bridge crane is improved, improving its safety and reliability.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of brakes for bridge crane, the braking System can provide safe and reliable braking.

In order to solve above-mentioned technical problem, the utility model provides a kind of brakes for bridge crane, described Bridge crane includes power set, decelerator and the reel being connected successively, and the brakes is described including being arranged at At least two brakes on the high speed shaft of decelerator.

Preferably, the high speed shaft of the decelerator extends to both sides through the decelerator main body of the decelerator and is formed as Including first axle and the second axle it is double go out axle construction, wherein, at least one institute is respectively arranged with the first axle and the second axle State brake.

Preferably, the first axle is connected to the power output shaft of the power set.

Preferably, the brakes includes being symmetrically disposed on the braking of both sides two of the decelerator main body Device.

Preferably, decelerator main body of at least part of shaft part of the high speed shaft in the power set and the decelerator Between extend, at least two brake is arranged on the part shaft part.

Preferably, at least two brake is configured to apply brake force to the high speed shaft simultaneously, equably Effect.

Preferably, connect or be formed with braked wheel on the high speed shaft, the brake can by with the braked wheel Rubbing action and brake the high speed shaft.

Preferably, the braked wheel has the braking end face for carrying out rubbing action with the brake.

Preferably, the power set are motor.

Additionally, the utility model also provides a kind of bridge crane including above-mentioned brakes.

By above-mentioned technical proposal of the present utility model, due to being provided with least two brakings on the high speed shaft of decelerator Device, when one of brake can not provide good brake force, can start other brakes, so that it is guaranteed that the weight of handling Thing does not fall out.In addition, in operation process, may be controlled to so that multiple brakes apply brake force jointly, to reduce height Local stress on fast axle, reduces the possibility that off-axis occurs.Therefore, brakes of the present utility model can provide safety, Reliable braking.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Description of the drawings

Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following Specific embodiment be used to explain the utility model together, but do not constitute to restriction of the present utility model.In the accompanying drawings：

Fig. 1 is shown according to a kind of connection of the brakes for bridge crane of specific embodiment of the utility model It is intended to；

Fig. 2 is the connection of the brakes for bridge crane according to the utility model another kind specific embodiment Schematic diagram.

Description of reference numerals

1 power set 1a motors

The high speed shaft of 2 decelerator 21

The axle of 211 first axle 212 second

The braked wheel of 22 decelerator main body 23

3 brakes

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.

Shown in seeing figures.1.and.2, the utility model provides a kind of brakes for bridge crane.The bridge-type rises Heavy-duty machine includes power set 1, decelerator 2 and reel (not shown) being connected successively etc..Typically, the power set 1 Can be motor 1a or other appropriate power-equipments, such as engine, hydraulic motor.In the course of the work, motor 1a outputs Power, Jing after decelerator 2 slows down and increases the gearing turned round, drives reel winding or discharges steel wire rope, and with handling, the steel wire rope connects The weight for connecing.

In order to keep the handling height of weight, braking dress can be set in the drive path from motor 1a to steel wire rope Put.In the utility model, brakes includes at least two brakes 3, and at least two brake 3 is arranged at decelerator On 2 high speed shaft 21.So as to, in operation process, when one of brake 3 can not provide good brake force, can be with Start other brakes 3, so that it is guaranteed that the weight of handling does not fall out.In addition, in operation process, may be controlled to so that many Individual brake 3 applies brake force jointly, to reduce the local stress on high speed shaft 21, reduces the possibility that off-axis occurs.Therefore, Brakes of the present utility model can provide safe and reliable braking.

By described above it is understood that brake 3 is arranged in correspondence with high speed shaft 21, with can be to the high speed shaft 21 apply brake force.That is, brake 3 " being arranged on the high speed shaft 21 of decelerator 2 " described in the utility model etc. represents the system Dynamic device 3 is arranged on the position that can act on high speed shaft 21, and brakes the high speed when required by appropriate ways (as rubbed) Axle 21.Thus, after motor 1a outputs power, the position before Jing decelerators 2 increase torsion effect, you can be easily braked is protected The reliability service of production safety and equipment is hindered.

In the utility model, brakes can arrange two or more brakes 3, and its position also may be used There are various different choices, it is described in detail below with reference to two kinds of preferred embodiments.It should be appreciated that the description below It is only used for illustrative to scheme of the present utility model, being not meant as brakes of the present utility model only can be real Apply as following forms, those skilled in the art can carry out appropriate modification or deformation to it and obtain other embodiment, this Also belong to protection domain of the present utility model.

With reference to shown in Fig. 1, according to a kind of brakes for bridge crane of preferred embodiment of the utility model Connection diagram, including power set 1, decelerator 2 and brakes.The high speed shaft 21 of decelerator 2 is double shafts Version, the i.e. high speed shaft 21 extend integrally through decelerator main body 22 to both sides, positioned at the side of decelerator main body 22 First axle 211 can be connected directly or indirectly to the power output shaft of motor 1a with (such as passing through shaft coupling), positioned at decelerator master The shaft part of the opposite side of body 22 is referred to as the second axle 212.In this case, can be respectively provided with the axle 212 of first axle 211 and second At least one brake 3, so that in the both sides of decelerator main body 22 respectively brake force can be applied to high speed shaft 21, even if for example existing There is off-axis in the first axle 211 of motor 1a sides in operation process, still can be braked by the brake 3 of the side of the second axle 212, Weight is avoided to drop.

Further, in the preferred embodiment, brake 3 is preferably and is symmetrically arranged in the two of decelerator main body 22 Side." symmetrical " arrangement described herein is not limited to the Striking symmetry of its set location, and mainly represents that the brake 3 of both sides can Apply brake force symmetrically towards 211 and second axle of first axle 212, so as to can simultaneously apply brake force in operation, and brake Device 3 can balance each other for the partial action power of high speed shaft 21, subsequently will be explained further.

Brake 3 can apply brake force to high speed shaft 21 in many ways, in the utility model preferred embodiment, Connect or be formed with braked wheel 23 on high speed shaft 21, the braked wheel 23 can be connected to high speed shaft 21 by spline, flat key etc., or Person forms as one with high speed shaft 21.Brake 3 can brake high speed shaft 21 by the rubbing action with the braked wheel 23.Can Selection of land, brake 3 can be rubbed with the end face of braked wheel 23 or side face, preferably brake end-face friction with it, to avoid Applying radial load first is needed to cause high speed shaft 21 to bend to apply frictional force on side face.If in addition, brake 3 is symmetrical The braked wheel 23 being located at respectively on the axle 212 of first axle 211 and second is acted on, then can make the axial direction being applied on braked wheel 23 Normal pressure balances each other, and easily avoids high speed shaft axial float.

With reference to shown in Fig. 2, according to the braking system for bridge crane of the utility model another kind preferred embodiment The connection diagram of system, including power set 1, decelerator 2 and brakes.From unlike aforementioned embodiments, Herein the high speed shaft 21 of decelerator 2 can select at least part of shaft part for being set to single shaft version, i.e. high speed shaft 21 to exist Extend between motor 1a and decelerator main body 22.At least two brakes 3 of brakes are then arranged on the part shaft part.

In the preferred embodiment, brake 3 can be in high speed shaft 21 circumferentially.For example, can on high speed shaft 21 To arrange braked wheel 23, brake 3 is respectively provided with the both sides of the braked wheel 23, such that it is able to make brake 3 respectively in braking Wheel 23 diverse location simultaneously, uniformly applied Braking, it is to avoid the local stress of braked wheel 23 is excessive.

The brakes that the utility model is provided is described in detail above, on this basis, the utility model is also A kind of bridge crane including above-mentioned brakes is provided.

Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.

It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each Plant possible combination no longer separately to illustrate.

Additionally, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (5)

1. a kind of brakes for bridge crane, the bridge crane includes the power set being connected successively (1), decelerator (2) and reel, it is characterised in that the brakes includes being arranged at the high speed shaft of the decelerator (2) (21) at least two brakes (3) on, at least part of shaft part of the high speed shaft (21) the power set (1) with it is described Extend between the decelerator main body (22) of decelerator (2), at least two brake (3) is arranged on the part shaft part, and It is configured to apply Braking to the high speed shaft (21) simultaneously, equably.

2. brakes according to claim 1, it is characterised in that connect or be formed with braking on the high speed shaft (21) Wheel (23), the brake (3) can brake the high speed shaft (21) by the rubbing action with the braked wheel (23).

3. brakes according to claim 2, it is characterised in that the braked wheel (23) with for and the braking Device (3) carries out the braking end face of rubbing action.

4. brakes as claimed in any of claims 1 to 3, it is characterised in that the power set (1) are electricity Machine (1a).

5. bridge crane, it is characterised in that the bridge crane includes as claimed in any of claims 1 to 4 Brakes.