Speed reducer for hoisting machinery
Technical Field
The utility model relates to a speed reducer, in particular to a speed reducer for hoisting machinery, and belongs to the technical field of speed reducers.
Background
The existing hoisting machinery usually drives a speed reducer and a winding drum through a motor, and drives a lifting hook to operate up and down through an output shaft running at a low speed, so that the lifting of an object is realized. But for a certain occasion, the requirement that two or more than two lifting hooks lift and descend simultaneously and the requirement that two or more than two lifting hooks are mechanically synchronized cannot be well met.
Therefore, a speed reducer capable of driving two drums needs to be designed to achieve the purpose that two or more lifting hooks lift and descend simultaneously, so that mechanical synchronization is guaranteed.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the speed reducer for the hoisting machinery is characterized in that the speed reducer comprises a speed reducer body, a lifting hook and a lifting hook, wherein the lifting hook is arranged on the lifting hook body, the lifting hook body is arranged on the lifting hook body, and the lifting hook body is arranged on the lifting hook body.
In order to achieve the purpose, the utility model adopts the following technical scheme: a speed reducer used on hoisting machinery comprises a speed reducer connected to the side wall of a hoisting device, wherein two winding drum groups are connected inside the hoisting device, and a motor is arranged at one end between the two winding drum groups; an input shaft, an output shaft I and an output shaft II which are parallel to each other are arranged on one side of the speed reducer, which is correspondingly connected with the hoisting device, wherein the input shaft is connected with a shaft head of the motor, and the output shaft I and the output shaft II are respectively connected with the two winding drum groups; the input shaft and the output shaft I are in transmission connection through a gear I, a gear shaft II, a gear shaft III and a gear III which are arranged inside the speed reducer in sequence; the input shaft and the output shaft II are in transmission connection through a third gear, a reverse gear I, a reverse gear shaft II, a reverse gear shaft III and a reverse gear III which are arranged inside the speed reducer and are arranged on the third gear shaft in sequence.
The outer side of the input shaft is simultaneously meshed with the first gear and the second gear, and the cross-section axes of the input shaft, the third gear shaft, the third reverse gear shaft, the first output shaft and the second output shaft are positioned on the same straight line.
The first reverse gear, the second reverse gear shaft and the third reverse gear are right-handed gears, and the second reverse gear and the third reverse gear shaft are left-handed gears.
The shell of the speed reducer is formed by fixedly connecting a box body and a box cover through screws, and the box bodies positioned at the first output shaft and the second output shaft are connected with the side wall of the hoisting device through convex flanges.
A first supporting plate and a second supporting plate are respectively arranged at two ends of the hoisting device, and the first supporting plate and the second supporting plate are fixedly connected through a supporting pull rod; two the reel group rotates to be connected between first backup pad and second backup pad, the motor sets up in first backup pad one end.
The middle part of the first supporting plate is provided with a mounting hole, and the shaft head of the motor is connected to the input shaft through the mounting hole.
And the first output shaft and the second output shaft are connected with the winding drum group in a solid external spline connection mode.
The utility model has the beneficial effects that:
1) the utility model drives the synchronous rotation of two low-speed output shafts through the high-speed shaft rotation of the input shaft, so that the two output shafts drive two drums to wind two or more than two lifting hooks for the same-cloth operation, thereby ensuring the mechanical synchronization of the lifting hooks with multiple lifting points while achieving the compact installation and use of the single-shaft input and double-shaft output at the same side.
2) The speed reducer adopts a structure form of single-shaft input and double-shaft output at the same side, and compared with a connecting structure in a base mode, the speed reducer has the characteristics of stable transmission and high safety while reducing the installation size of the structure.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention on a lifting device;
FIG. 2 is a top view of the reducer of the present invention shown in FIG. 1 coupled to a motor;
fig. 3 is a side view of the reducer of the present invention shown in fig. 1.
In the figure, 1-hoisting gear, 2-first support plate, 201-mounting hole, 3-second support plate, 4-support pull rod, 5-winding drum group, 6-motor, 7-speed reducer, 701-box, 702-box cover, 8-input shaft, 9-output shaft I, 10-output shaft II, 11-gear I, 12-gear shaft II, 13-gear II, 14-gear shaft III, 15-gear III, 16-gear shaft, 17-gear, 18-reverse gear I, 19-reverse gear shaft II, 20-reverse gear II, 21-reverse gear shaft III, 22-reverse gear III, 23-screw and 24-flange.
Detailed Description
The utility model is further explained below with reference to the figures and the embodiments.
Example (b): as shown in fig. 1-3, the speed reducer for hoisting machinery provided by the utility model comprises a speed reducer 7 connected to the side wall of a hoisting device 1, two winding drum groups 5 connected to the inside of the hoisting device 1, and a motor 6 mounted at one end between the two winding drum groups 5; one side of the speed reducer 7, which is correspondingly connected with the hoisting device 1, is connected with an input shaft 8, an output shaft I9 and an output shaft II 10 which are parallel to each other, wherein the input shaft 8 is connected with a shaft head of the motor 6, and the output shaft I9 and the output shaft II 10 are respectively connected with the two winding drum groups 5.
A first supporting plate 2 and a second supporting plate 3 are respectively arranged at two ends of the hoisting device 1, and the first supporting plate 2 and the second supporting plate 3 are fixedly connected through a supporting pull rod 4; two reel groups 5 rotate to be connected between first backup pad 2 and second backup pad 3, and the middle part of first backup pad 2 sets up mounting hole 201, and the spindle nose of motor 6 is connected on input shaft 8 through running through mounting hole 201.
The input shaft 8 and the output shaft 9 are in transmission connection through a gear I11, a gear shaft II 12, a gear II 13, a gear shaft III 14 and a gear III 15 which are connected with the inside of the speed reducer 7 in sequence; the first gear 11 is fixedly connected with the second gear shaft 12, the second gear shaft 12 is meshed with the second gear 13, the second gear 13 is fixedly connected with the third gear shaft 14, the third gear shaft 14 is meshed with the third gear 15, and the third gear 15 is fixedly connected with the first output shaft 9.
The input shaft 8 and the output shaft II 10 are in transmission connection through a third wheel 17, a first reverse gear 18, a second reverse gear shaft 19, a second reverse gear 20, a third reverse gear shaft 21 and a third reverse gear 22 on a third wheel shaft 16 arranged inside the speed reducer 7 in sequence; the third gear 17 is fixedly connected with the third gear shaft 16, the third gear 17 is meshed with the first reverse gear 18, the first reverse gear 18 is fixedly connected with the second reverse gear shaft 19, the second reverse gear shaft 19 is meshed with the second reverse gear 20, the second reverse gear 20 is fixedly connected with the third reverse gear shaft 21, the third reverse gear shaft 21 is meshed with the third reverse gear 22, and the third reverse gear 22 is fixedly connected with the second output shaft 10.
The outer side of the input shaft 8 is meshed with the first gear 11 and the second gear 17 at the same time, and the cross-section axes of the input shaft 8, the third gear shaft 14, the third reverse gear shaft 21, the first output shaft 9 and the second output shaft 10 are positioned on the same straight line; the axle center distance between the first output shaft 9 and the second output shaft 10 is 518 mm.
The first reverse gear 18, the second reverse gear shaft 19 and the third reverse gear 22 are right-handed gears, and the second reverse gear 20 and the third reverse gear shaft 21 are left-handed gears.
The shell of the speed reducer 7 is formed by fixedly connecting a box body 701 and a box cover 702 through inner hexagonal socket head cap screws 23, and the box body 701 at the first output shaft 9 and the second output shaft 10 is connected with the side wall of the lifting device 1 through a protruding flange 24 and is fastened through a stud and a hexagon nut.
The first output shaft 9 and the second output shaft 10 are connected with the winding drum set 5 in a solid external spline connection mode.
The technical parameters are as follows:
the speed reducer 7 can adopt a welded box body, the gear parameters adopt the gear parameters of the original ABM European-style gourd speed reducer, the motor 6 can be matched with a 5.5KW4 pole variable frequency motor, and the no-load noise is less than 80 dB.
If the lifting capacity of the lifting device 1 is 5 tons, when a rope winding mode of 2/4 is adopted, the diameter of a winding drum is 190mm, the lifting speed is 5m/min, the structure form of one-inlet and two-outlet is adopted, a single winding drum is directly pulled for 1.25 tons, the rope is discharged from the outer side of the winding drum, and the rotating directions are opposite.
The parts must be cleaned up before assembly, and no-load operation test is carried out after the gear box is assembled, so that impact and noise are avoided during the test; the outer surface of the speed reducer is sprayed with black finish paint, and lubricating oil is filled before use.
The synchronous rotation of the two low-speed output shafts is driven by the rotation of the high-speed shaft of the input shaft, so that the two output shafts drive the two drums to wind two or more than two lifting hooks for synchronous lifting operation, and the mechanical synchronization of the lifting and descending of the lifting hooks with multiple lifting points is ensured; and through the structural style that adopts the unipolar input biax output of homonymy, compare the connection structure of base mode, when the easy to assemble use, still have the characteristics that the transmission is stable and the security is high.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.