CN217229995U

CN217229995U - Central driving structure for suspending end beam driving travelling wheel

Info

Publication number: CN217229995U
Application number: CN202123216587.4U
Authority: CN
Inventors: 邱雪芳; 黄浩奇; 黄以建; 徐涛; 张学东; 陆胜强; 郭佳佳
Original assignee: Zhejiang Xiecheng Crane Machinery Co ltd
Current assignee: Zhejiang Xiecheng Crane Machinery Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-08-19
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a center drive structure for hanging end beam initiative walking wheel, characterized by: comprises a driving wheel set, a driven wheel set and a linkage assembly; the driven wheel set comprises a driven shaft fixed on the suspension end beam and a driven wheel arranged on the driven shaft through a first bearing; the driving wheel set comprises a first bearing seat fixed on the suspension end beam, a driving shaft arranged on the first bearing seat through a second bearing, a driving wheel fixed on the driving shaft and coaxially opposite to the driven wheel, and a driving motor arranged on the suspension end beam or the first bearing seat, wherein an output shaft of the driving motor extends into the driving shaft and is in limit fit with the circumferential direction of the driving shaft; the linkage assembly is connected between the driven wheel and the driving wheel so as to synchronously rotate the driving wheel and the driven wheel. The utility model discloses can promote and hang the holistic compactedness of end beam, can avoid the abnormal sound to produce again.

Description

Central driving structure for hanging end beam active walking wheel

Technical Field

The utility model relates to a hoisting accessory technical field especially relates to a central drive structure for hanging end beam initiative walking wheel.

Background

The crane is a multi-action crane for vertically lifting and horizontally carrying heavy objects in a certain range, and the bridge crane is a bridge crane, also called a crown block, in which a bridge runs on an overhead rail. The bridge frame of the bridge crane runs longitudinally along the tracks laid on the elevated frames at two sides, and the end beams of the bridge crane transversely move along the tracks laid on the bridge frame through the travelling wheels to form a rectangular working range, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment.

The bridge frame of the bridge crane mainly comprises a main beam and suspension end beams positioned on two sides of the main beam, and two ends of each suspension end beam are provided with a traveling wheel mechanism. In the prior art, a walking wheel mechanism on a suspension end beam based on production adopts an external gear to mesh with an internal gear on a walking wheel to drive the walking wheel to rotate, and the external gear is installed through a flange. When the end beam is installed, the center distance error of the two gears easily causes gear meshing abnormal sound, and in addition, the transmission mode of external gear meshing enables the size of the end beam structure to be large. There is therefore room for improvement in prior art traction drives on suspension end beams.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a central drive structure for hanging end beam initiative walking wheel can promote and hang the holistic compactedness of end beam, can avoid the abnormal sound to produce again.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a center drive structure for hanging end beam initiative walking wheel which characterized by: comprises a driving wheel set, a driven wheel set and a linkage assembly;

the driven wheel set comprises a driven shaft fixed on the suspension end beam and a driven wheel arranged on the driven shaft through a first bearing;

the driving wheel set comprises a first bearing seat fixed on the suspension end beam, a driving shaft arranged on the first bearing seat through a second bearing, a driving wheel fixed on the driving shaft and coaxially opposite to the driven wheel, and a driving motor arranged on the suspension end beam or the first bearing seat, wherein an output shaft of the driving motor extends into the driving shaft and is in limit fit with the circumferential direction of the driving shaft;

the linkage assembly is connected between the driven wheel and the driving wheel so as to synchronously rotate the driving wheel and the driven wheel.

Preferably, the outer end of the driven shaft is located on the outer side of the suspension end beam and is provided with a threaded section, and a locking nut is assembled on the threaded section.

Preferably, a central hole is formed in the driving shaft, and an output shaft of the driving motor extends into the central hole and is matched with the central hole through a key groove to realize circumferential limiting matching.

Preferably, the driven wheel and the driving wheel are both provided with cylindrical hobbing, and the linkage assembly comprises a transmission shaft arranged on the lower side of the suspension end beam through a second bearing seat and two transmission gears sleeved on the transmission shaft and meshed with the two cylindrical hobbing.

Preferably, the two webs of the suspension end beam are two channel steels arranged back to back.

The utility model has the advantages that: the output shaft of the driving motor is directly concentric with the driving shaft and is in transmission fit with the driving shaft, so that the transmission stability is obviously improved, and abnormal sound is avoided in the transmission process; the reduction of the external gear of the suspension end beam can reduce the size of the whole suspension end beam and improve the structure compactness.

Drawings

Fig. 1 is a schematic view of a central driving structure for suspending an end beam ground engaging wheel according to the present embodiment.

Detailed Description

The central driving structure for suspending the end beam active road wheel of the present invention is further described with reference to fig. 1.

The utility model provides a center drive structure for hanging end beam initiative walking wheel which characterized by: comprises a driving wheel set 3, a driven wheel set 2 and a linkage assembly 4. The driven wheel set 2 comprises a driven shaft 23 fixed on the suspension end beam 1, two first bearings 22 sleeved on the driven shaft 23 and a driven wheel 21 arranged on the driven shaft 23 through the first bearings 22. An inner step for separating and positioning the two first bearings 22 is arranged in a central hole of the driven wheel 21, and an outer step and a clamp spring are arranged on the driven shaft 23 at the position inside the suspension end beam 1 in a clamped mode so as to enable the opposite surfaces of the two first bearings 22 to abut against and limit; the outer end of the driven shaft 23 is located outside the suspension end beam 1 and has a threaded section on which a locking nut 24 is fitted, cooperating with an outer step to fasten the driven shaft 23 to the suspension end beam 1. The driving wheel set 3 comprises a first bearing seat 34 welded and fixed on the suspension end beam 1, a driving shaft 32 installed on the first bearing seat 34 through two second bearings 33, a driving wheel 31 fixed on the driving shaft 32 and coaxially opposite to the driven wheel 21, and a driving motor 35 installed on the suspension end beam 1 or on the first bearing seat 34, wherein an output shaft of the driving motor 35 extends into the driving shaft 32 and is in circumferential limit fit with the driving shaft 32. The linkage assembly is connected between the driven wheel 21 and the driving wheel 31 so as to link the driving wheel 31 and the driven wheel 21 to synchronously rotate. The first bearing seat 34 has an inner step therein to space and position the two second bearings 33, and similarly, the drive shaft 32 also has a circlip for positioning and an outer step.

Specifically, the driving shaft 32 is provided with a central hole therein, the shell of the driving motor 35 is fixed on the first bearing seat 34 through a connecting flange, and the output shaft of the driving motor 35 extends into the central hole and is matched with the driving shaft 32 in a circumferential limiting manner through a key groove.

The driven wheel 21 and the driving wheel 31 are both provided with cylindrical hobbing 211, and the linkage assembly 4 comprises a transmission shaft 43 arranged on the lower side of the suspension end beam 1 through a second bearing seat 41 and two transmission gears 42 sleeved on the transmission shaft 43 and meshed with the two cylindrical hobbing. Thereby achieving synchronous rotation of the driving pulley 31 and the driven pulley 21.

Two webs of the suspension end beam 1 are two channel steels arranged back to back, the driven wheel set and the driving wheel set are respectively installed on the two channel steels, and the channel steels have stable structural strength.

In this embodiment, the output shaft of the driving motor 35 is directly concentric with the driving shaft 32 and is in transmission fit with the driving shaft, so that the transmission stability is remarkably improved and abnormal sound is avoided in the transmission process; the reduction of external gears of the suspension end beam 1 can reduce the size of the whole suspension end beam 1 and improve the structure compactness.

Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a center drive structure for hanging end beam initiative walking wheel which characterized by: comprises a driving wheel set, a driven wheel set and a linkage assembly;

2. The central drive configuration for suspending an end beam ground engaging wheel of claim 1, wherein: the outer end of the driven shaft is located on the outer side of the suspension end beam and is provided with a threaded section, and a locking nut is assembled on the threaded section.

3. The central drive configuration for suspending an end beam ground engaging wheel of claim 1, wherein: a central hole is formed in the driving shaft, and an output shaft of the driving motor stretches into the central hole and is matched with the central hole in a circumferential limiting mode through a key groove.

4. The central drive configuration for suspending an end beam ground engaging wheel of claim 1, wherein: the driven wheel and the driving wheel are both provided with cylindrical hobbing, and the linkage assembly comprises a transmission shaft arranged on the lower side of the suspension end beam through a second bearing seat and two transmission gears sleeved on the transmission shaft and meshed with the two cylindrical hobbing.

5. The central drive configuration for suspending an end beam ground engaging wheel of claim 1, wherein: the two webs of the suspension end beam are two channel steels arranged back to back.