CN206783192U - Lifting mechanism and crane - Google Patents

Abstract

This application discloses a kind of lifting mechanism, including a planetary reduction gear, two motor, four two-fold cable reels, four fixed pulley groups, two counter-jibs, four steel wire ropes, four running blocks, the two-fold cable reel, fixed pulley group, counter-jib, running block are arranged symmetrically in the both sides of the planetary reduction gear.The planetary reduction gear includes two input shafts and four output shafts, and each input shaft is connected to a corresponding motor, and each output shaft is connected to a corresponding two-fold cable reel.Every steel wire rope is wrapped on a corresponding two-fold cable reel, and one, steel wire rope is fixed on two-fold cable reel, and other end is fixed on one end of counter-jib by fixed pulley group, running block.The lifting mechanism of the application can quickly run and can slow running, can obtain quickly with two kinds of stable speeds of service at a slow speed, meet work requirements, improve the performance of lifting mechanism.

Description

Lifting mechanism and crane

Technical field

The application belongs to crane technical field, specifically, is related to a kind of lifting mechanism and crane.

Background technology

At present, typically there was only a kind of stabilized speed for the small lifting mechanism of the small lift of lifting capacity, reel is twined using individual layer Around simple in construction.And for the big lifting mechanism of the big lift of lifting capacity, typically equally there was only a kind of stabilized speed, can not meet Demand during work.

Utility model content

In view of this, technical problems to be solved in this application there is provided a kind of lifting mechanism and crane, can obtain Quick and two kinds of stable speeds of service at a slow speed, improve the performance of lifting mechanism.

In order to solve the above-mentioned technical problem, this application discloses a kind of lifting mechanism, including：One planetary reduction gear, two Individual motor, four two-fold cable reels, four fixed pulley groups, two counter-jibs, four steel wire ropes, four running blocks, it is described Two-fold cable reel, fixed pulley group, counter-jib, running block are arranged symmetrically in the both sides of the planetary reduction gear, wherein：

The planetary reduction gear includes two input shafts and four output shafts, and each input shaft is connected to corresponding one The individual motor, each output shaft are connected to the corresponding one two-fold cable reel；And

For every wirerope-winding on the corresponding one two-fold cable reel, one, the steel wire rope is fixed on institute State on two-fold cable reel, other end is fixed on one end of the counter-jib by the fixed pulley group, the running block.

Preferably, service brake is installed on the input shaft, drum brake is installed on the output shaft.

Preferably, the input shaft is connected to the motor by shaft coupling.

Preferably, the two-fold cable reel is simply connected multi-lay winding.Therefore, the two-fold cable reel is provided with two layers of guiding Baffle ring and three layers of guiding baffle ring.

In addition, disclosed herein as well is a kind of crane, the crane includes lifting mechanism as described above.

Compared with prior art, the application can be obtained including following technique effect：When two motor work simultaneously, The lifting mechanism can obtain a kind of quick stabilized speed；When an electric motor operation, the lifting mechanism can obtain another kind Stabilized speed at a slow speed.In this way, the lifting mechanism of the application can quickly run and can slow running, can obtain quick and slow Fast two kinds of stable speeds of service, meet work requirements, improve the performance of lifting mechanism.

Certainly, implementing any product of the application must be not necessarily required to reach all the above technique effect simultaneously.

Brief description of the drawings

, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model The accompanying drawing to be used is briefly described.Accompanying drawing described herein is used for providing further understanding of the present application, forms this Shen A part please, the schematic description and description of the application are used to explain the application, not formed to the improper of the application Limit.In the accompanying drawings：

Fig. 1 is a kind of floor map for lifting mechanism that some embodiments of the application provide；

Fig. 2 is the schematic diagram of wirerope-winding in the lifting mechanism that some embodiments of the application provide.

Description of reference numerals：

1. planetary reduction gear, 2. service brakes, 3. shaft couplings, 4. motor, 5. two-fold cable reels, 6. reels are braked Device, 7. 2 layers be oriented to baffle rings, 8. 3 layers be oriented to baffle rings, 9. fixed pulley groups, 10. counter-jibs, 11. steel wire ropes, 12. running blocks, 13. input shaft, 14. output shafts.

Embodiment

Presently filed embodiment is described in detail below in conjunction with drawings and Examples, and thereby how the application is applied Technological means can fully understand and implement according to this to solve technical problem and reach the implementation process of technical effect.

As shown in figure 1, a kind of lifting mechanism for providing of some embodiments of the application is by two parts symmetrically arranging Form, because two part-structures and principle symmetrically arranged are identical, only specifically described below with one of part, its Description content is applied to another part.

Please referring particularly to Fig. 1 and Fig. 2, a kind of lifting mechanism that some embodiments of the application provide includes：Planetary reduction gear 1st, motor 4, two-fold cable reel 5, fixed pulley group 9, counter-jib 10, steel wire rope 11, running block 12.

A kind of concrete structure of the lifting mechanism provided as some embodiments of the application, the lifting mechanism include one 4, four, the motor of planetary reduction gear 1, two, 10, four steel wire ropes of counter-jib of fixed pulley group 9, two of two-fold cable reel 5, four 11st, four running blocks 12.The two-fold cable reel 5, fixed pulley group 9, counter-jib 10, running block 12 are arranged symmetrically in described The both sides of planetary reduction gear 1.

Each planetary reduction gear 1 includes two input shafts, 13, four output shafts 14, and each input shaft 13 is connected to accordingly One motor 4, each output shaft 14 are connected to corresponding one two-fold cable reel 5.Alternatively, input shaft 13 passes through shaft coupling 3 are connected with motor 4.Every steel wire rope 11 is wrapped on corresponding one two-fold cable reel 5, and 11 1, steel wire rope is fixed on double On broken line reel 5, other end is fixed on one end of counter-jib 10 by fixed pulley group 9, running block 12.

When two motor 4 work simultaneously, lifting mechanism can obtain a kind of quick stabilized speed；When a motor During 4 work, lifting mechanism can obtain another stabilized speed at a slow speed.In this way, the lifting mechanism of the embodiment of the present application can be fast Speed operation and can slow running, it can obtain quickly with two kinds of stable speeds of service at a slow speed, meet work requirements, improved Rise the performance of mechanism.

As described above, two-fold cable reel 5, fixed pulley group 9, counter-jib 10 and running block 12 are arranged symmetrically in planetary reduction gear The both sides of device 1.The difference of height of two fixed pulley group 9 of the planetary reduction gear 1 per side is adjusted by counter-jib 10, and planet subtracts The difference of height of two running block 12 of the fast device 1 per side is ensured by controlling the diameter tolerance of two-fold cable reel 5.So, It can ensure that the suspender of lifting mechanism remains horizontal and not skewed so that the suspension centre of suspender has good anti-sway performance. And this design can also make the stress equalization of planetary reduction gear 1, further ensure that lifting mechanism operates steadily.

In some embodiments of above-described embodiment, service brake 2 is also equipped with each input shaft 13.Optionally, respectively Drum brake 6 is also equipped with output shaft 14.Utilize this design so that two input shafts 13 and four of planetary reduction gear 1 Individual output shaft 14 is designed with corresponding brake, can ensure that weight will not fall when driving-chain breaks down, so as to protect The safe and reliable of lifting mechanism is demonstrate,proved.

It is well known that, if using winding of single layer, rolled up for the big lifting mechanism of the big lift of lifting capacity in the prior art Cylinder diameter and length all increase, and mechanism size is huge；It is if corresponding to slow down using duplex type Double wound, the increase of reel moment of torsion Device bears moment of torsion increase, causes agency cost to increase.The application has made further improvement, in some embodiments of above-described embodiment In, two-fold cable reel 5 is simply connected multi-lay winding, is specifically as follows three layers of winding of simply connected.In some other realities of above-described embodiment Apply in example, the two-fold cable reel 5 is provided with two layers and is oriented to baffle ring 7 and three layers of guiding baffle ring 8.When lifting mechanism is run, when the Layer of steel wire rope is oriented to baffle ring 7 by two layers after being wrapped over and is transitioned into the second layer, is led after second layer steel wire rope is wrapped over by three layers Third layer is transitioned into baffle ring 8, three layers of winding of simply connected can be realized., can be in two-fold cable reel to realize simply connected multi-lay winding On set two layers be oriented to baffle rings, three layers be oriented to baffle ring ... multilayers and be oriented to baffle rings.By improving herein, with duplex type Double wound ratio Compared with two-fold cable reel moment of torsion reduces, and planetary reduction gear output torque reduces, and then planetary reduction gear is in light weight, cost is low, sexual valence Than high.In addition, the embodiment of the present application uses steel cable winding system, stable equilibrium.

The embodiment of the present application also provides a kind of crane, and the crane is provided with lifting mechanism, and the lifting mechanism is as before Text description, will not be repeated here.

In summary, the embodiment of the present application can realize following technique effect：

When two motor simultaneously work when, the lifting mechanism can obtain a kind of quick stabilized speed, when one it is electronic When machine works, the lifting mechanism can obtain another stabilized speed at a slow speed.The claimed lifting mechanism of the embodiment of the present application And can slow running can be quickly run, can be obtained quickly with two kinds of stable speeds of service at a slow speed, be met work requirements, carry The performance of lifting mechanism is risen.

The difference of height of two fixed pulley group of the planetary reduction gear per side is adjusted by counter-jib, and planetary reduction gear is every The difference of height of two running blocks of side is ensured by controlling the diameter tolerance of two-fold cable reel.In this manner it is ensured that rise The suspender for rising mechanism remains horizontal and not skewed so that the suspension centre of suspender has good anti-sway performance.And this set Meter can also make planetary reduction gear stress equalization, further ensure that lifting mechanism operates steadily.

The input shaft and output shaft of planetary reduction gear are designed with brake, and this is designed to when driving-chain breaks down Ensure that weight will not fall, improve the security reliability of lifting mechanism.

Compared with duplex type Double wound, two-fold cable reel moment of torsion reduces, and planetary reduction gear output torque is small, and then planet subtracts Fast device is in light weight, cost is low, cost-effective.In addition, the embodiment of the present application uses steel cable winding system, stable equilibrium.

Herein, only emphasis describes difference with other schemes to each preferred scheme, as long as each preferred scheme Do not conflict, can be combined, the embodiment formed after combination is also within category disclosed in this specification, it is contemplated that Text is succinct, herein with regard to no longer individually being described to combining formed embodiment.

It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability Comprising, so that commodity or system including a series of elements not only include those key elements, but also including without clear and definite The other element listed, or also include for this commodity or the intrinsic key element of system.In the feelings not limited more Under condition, the key element that is limited by sentence "including a ...", it is not excluded that in the commodity including the key element or system also Other identical element be present.

Described above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this Utility model.A variety of modifications to these embodiments will be apparent to one skilled in the art, institute herein The General Principle of definition can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model. Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and original disclosed herein The reason most wide scope consistent with features of novelty.

Described above is only specific embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (6)

1. A kind of 1. lifting mechanism, it is characterised in that including：One planetary reduction gear (1), two motor (4), four dual slopes Reel (5), four fixed pulley groups (9), two counter-jibs (10), four steel wire ropes (11), four running blocks (12) are described double Broken line reel (5), fixed pulley group (9), counter-jib (10), running block (12) are arranged symmetrically in the planetary reduction gear (1) Both sides, wherein：

   The planetary reduction gear (1) includes two input shafts (13) and four output shafts (14), and each input shaft (13) is even Corresponding one motor (4) is connected to, each output shaft (14) is connected to the corresponding one two-fold cable reel (5)；And

   Every steel wire rope (11) is wrapped on the corresponding one two-fold cable reel (5), (11) one, the steel wire rope It is fixed on the two-fold cable reel (5), other end is fixed on institute by the fixed pulley group (9), the running block (12) State one end of counter-jib (10).
2. 2. lifting mechanism according to claim 1, it is characterised in that be provided with service brake on the input shaft (13) (2) drum brake (6), is installed on the output shaft (14).
3. 3. lifting mechanism according to claim 1, it is characterised in that the input shaft (13) is connected by shaft coupling (3) In the motor (4).
4. 4. lifting mechanism according to claim 1, it is characterised in that the two-fold cable reel (5) is simply connected multi-lay winding.
5. 5. according to the lifting mechanism described in any one of Claims 1-4, it is characterised in that the two-fold cable reel (5) is provided with Two layers are oriented to baffle ring (7) and three layers of guiding baffle ring (8).
6. 6. a kind of crane, it is characterised in that including the lifting mechanism as described in claim 1 to 5 is any.