CN209797339U

CN209797339U - hoisting mechanism of crane for building

Info

Publication number: CN209797339U
Application number: CN201920123654.1U
Authority: CN
Inventors: 边辑
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2019-12-17
Anticipated expiration: 2029-01-24

Abstract

The embodiment of the utility model discloses a hoisting mechanism of crane for building, including reel and the actuating mechanism who sets up at the reel both ends, the both ends of reel all are connected with driven complete gear, actuating mechanism includes lifting motor and reduction gear, the low-speed axle of reduction gear disposes the incomplete gear of initiative that meshes with driven complete gear, the one end of reduction gear high-speed axle passes through the spline connection with the drive shaft of lifting motor; the utility model discloses a rotation of the incomplete gear of initiative of the epaxial configuration of reduction gear low-speed drives rather than the driven complete gear rotation of meshing, when the incomplete gear of initiative does unidirectional rotation, one-way intermittent motion is made to driven complete gear to make hoisting mechanism's rising and decline process be the motion of intermittent type formula, need not to play to rise the motor and carry out the speed switching and also guaranteed the security of rising and decline in-process.

Description

hoisting mechanism of crane for building

Technical Field

The embodiment of the utility model provides a relate to hoist technical field, concretely relates to hoisting mechanism of hoist for building.

Background

the crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, and is also called a crown block, a navigation crane and a crane. At present, along with the continuous development of economy in China, more and more buildings are built, various cranes are needed for the buildings, the safety problem of the cranes is particularly important, the quality of each part of the crane is required to be safe and reliable, and a lifting mechanism of the crane, which is called as a lifting mechanism, is a basic constitution which is necessary for the crane and is used for lifting and lowering objects. The hoisting mechanism drives the winding drum to rotate through the coupling by the hoisting motor and the hollow shaft of the speed reducer, so that the steel wire rope/cable wound on the winding drum drives the hook device to ascend or descend. Corresponding couplings and supporting frames may need to be configured for different lifting heights. The working performance of the whole crane is directly influenced by the working quality of the hoisting mechanism.

The hoisting mechanism needs to run at a reduced speed in the final stage of the ascending and descending processes to avoid the safety of hoisted objects and the stability during placement, and the switching of the high-speed running speed and the low-speed running speed of the traditional hoisting mechanism is realized by switching two motors. Therefore, the motor in the operation of the hoisting mechanism is subjected to large switching impact, the motor is easy to damage, the electrical control is very complex, and the contactor is frequently replaced.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a hoisting mechanism of crane for building all is provided with actuating mechanism at the both ends of reel, and two sets of actuating mechanism's setting has improved the lifting capacity of hoist to solve among the prior art because the motor speed switches the problem of strikeing the motor damage that leads to greatly.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a hoisting mechanism of hoist for building, includes the reel and sets up the actuating mechanism at the reel both ends, the both ends of reel all are connected with driven complete gear, actuating mechanism is including playing to rise motor and reduction gear, the low-speed axle of reduction gear disposes the incomplete gear of initiative with driven complete gear engaged with, the one end of reduction gear high-speed axle passes through splined connection with the drive shaft that plays to rise the motor.

The embodiment of the utility model provides a characterized in that still, the periphery equidistance of initiative incomplete gear is provided with two at least teeth, driven complete gear is the spur gear.

The utility model discloses the characteristic still lies in, left grooving and right grooving have been seted up to half left and half right peripheral surface of reel, it has a wire rope, two to convolute respectively in left side grooving and the right grooving wire rope's end just through the stull connection the stull is connected downwards and is colluded.

The embodiment of the utility model provides a characterized in that still, left side grooving and right grooving are the helicla flute structure, just the spiral opposite direction of left side grooving and right grooving.

the embodiment of the utility model provides a characterized in that still, the other end of high-speed shaft stretches out the casing of reduction gear just is connected with the shaft coupling, be equipped with the brake disc on the shaft coupling.

The embodiment of the utility model provides a have following advantage:

(1) The two ends of the winding drum of the utility model are provided with the driving mechanisms, the lifting capacity of the crane is improved by the arrangement of the two driving mechanisms, and the safety of the crane is also improved;

(2) The utility model discloses a reel both ends are provided with driven complete gear, the incomplete gear's of initiative rotation through the epaxial configuration of reduction gear low-speed drives rather than the driven complete gear rotation of meshing, wherein the number of teeth on the incomplete gear of initiative is incomplete, when the incomplete gear of initiative does unidirectional rotation, one-way intermittent motion is made to driven complete gear to make hoisting mechanism's rising and decline process be the motion of intermittent type formula, need not to play to rise the motor and carry out the switching of speed and also guaranteed the security of rising and decline in-process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic overall structural diagram of a hoisting mechanism of a crane for building according to an embodiment of the present invention;

fig. 2 is a front view of a driven full gear provided by an embodiment of the present invention;

Fig. 3 is a front view of a driving incomplete gear according to an embodiment of the present invention.

In the figure:

1-a winding drum; 2-driven full gear; 3-a lifting motor; 4-a reducer; 5-driving incomplete gear; 6-a coupler; 7-a brake disc;

101-left rope groove; 102-right rope groove; 103-a steel wire rope; 104-a cross brace; 105-hook.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a hoisting mechanism of crane for building, including reel 1 and the actuating mechanism of setting at reel 1 both ends, the both ends of reel 1 all are connected with driven complete gear 2, actuating mechanism includes lifting motor 3 and reduction gear 4, the low-speed axle of reduction gear 4 disposes the incomplete gear 5 of initiative with driven complete gear 2 engaged with, the one end of the 4 high-speed axles of reduction gear passes through splined connection with lifting motor 3's drive shaft.

Specifically, the periphery of the driving incomplete gear 5 is equidistantly provided with at least two teeth, and the driven complete gear 2 is a spur gear.

The utility model discloses a high-speed shaft one end of reduction gear passes through splined connection with the output shaft of motor, and this kind of direct-connected type is connected and has improved hoisting mechanism's transmission efficiency greatly. Meanwhile, the two ends of the winding drum 1 are provided with the driving mechanisms, the lifting capacity of the crane is improved due to the arrangement of the two driving mechanisms, and meanwhile, the safety of the crane is also improved;

As shown in fig. 1, fig. 2 and fig. 3, simultaneously the utility model discloses a 1 both ends of reel are provided with driven complete gear 2, the rotation of the incomplete gear 5 of initiative through 4 low-speed epaxial configurations of reduction gear drives rather than the driven complete gear 2 rotation of meshing, wherein the number of teeth on the incomplete gear 5 of initiative is incomplete, when the incomplete gear 5 of initiative is made unidirectional rotation, driven complete gear 2 is one-way intermittent motion, thereby make hoisting mechanism's rising and decline process be intermittent type's motion, it also has guaranteed the security of rising with the decline in-process to need not to rise motor 3 and carry out the speed switch.

In order to guarantee the stability of lifting by crane the article, the utility model discloses left grooving 101 and right grooving 102 have been seted up to the peripheral surface of the left half of reel 1 and the right half, it has a wire rope 103, two to convolute respectively in left side grooving 101 and the right grooving 102 wire rope 103's end is connected just through stull 104 is connected with downwards and is hung hook 105.

Further, the left rope groove 101 and the right rope groove 102 are both spiral groove structures, and the spiral directions of the left rope groove 101 and the right rope groove 102 are opposite.

The utility model discloses in, left grooving 101 and right grooving 102 are the helicla flute structure, and the helix symmetry setting of this left helical flute and right helicla flute, and wire rope 103 is convoluteed on the reel along the spiral direction of helicla flute, and during the play rope, two wire rope 103 can offset each other to the axial force of reel, guarantee reel 1 atress stable to hoisting mechanism's life has been improved.

As the utility model discloses a further preferred, the other end of high-speed shaft stretches out the casing of reduction gear 4 just is connected with shaft coupling 6, be equipped with brake disc 7 on the shaft coupling 6. The brake disc 7 and the speed reducer 4 are of an integrated structure due to the design, and the installation precision is greatly improved through centralized assembly.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a hoisting mechanism of hoist for building, includes reel (1) and sets up the actuating mechanism at reel (1) both ends, its characterized in that: the both ends of reel (1) all are connected with driven complete gear (2), actuating mechanism is including playing to rise motor (3) and reduction gear (4), the low-speed axle of reduction gear (4) disposes the incomplete gear of initiative (5) with driven complete gear (2) engaged with, the one end of reduction gear (4) high-speed axle passes through splined connection with the drive shaft that plays to rise motor (3).

2. A hoisting mechanism of a construction crane according to claim 1, characterized in that: the periphery of the driving incomplete gear (5) is equidistantly provided with at least two teeth, and the driven complete gear (2) is a straight gear.

3. A hoisting mechanism of a construction crane according to claim 1, characterized in that: the outer peripheral surface of the left half part and the right half part of the winding drum (1) is provided with a left rope groove (101) and a right rope groove (102), a steel wire rope (103) is wound in the left rope groove (101) and the right rope groove (102) respectively, the tail ends of the steel wire ropes (103) are connected through a cross brace (104), and the cross brace (104) is connected with a hook (105) downwards.

4. A hoisting mechanism of a construction crane according to claim 3, characterized in that: the left rope groove (101) and the right rope groove (102) are both in spiral groove structures, and the spiral directions of the left rope groove (101) and the right rope groove (102) are opposite.

5. A hoisting mechanism of a construction crane according to claim 1, characterized in that: the other end of the high-speed shaft extends out of the shell of the speed reducer (4) and is connected with a coupler (6), and a brake disc (7) is arranged on the coupler (6).