CN201271799Y

CN201271799Y - Axial unloader for belt pulley

Info

Publication number: CN201271799Y
Application number: CNU200820173075XU
Authority: CN
Inventors: 许毅; 刘杰; 李连军; 吕正农
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-17
Filing date: 2008-10-17
Publication date: 2009-07-15
Anticipated expiration: 2018-10-17

Abstract

The utility model discloses an axial pull unloading machine for belt pulleys, which comprises a base (1) and universal roller wheels (2). The universal roller wheels (2) are arranged in all of the four corners of the base (1). The utility model is characterized in that an upper U-shaped plate (3) is vertically welded on one end of the upper surface of the base (1); an upper dead plate (4) is vertically welded on the other end of the upper surface of the base (1); an upper hydraulic cylinder (5) is fixed on the inner side face of the upper end of the dead plate (4); the axial line of a piston rod (6) in the hydraulic cylinder (5) and the center point of the U-shaped opening (7) of the U-shaped plate (3) are on a straight line. Lifting screws (8) are arranged on both ends of the base (1). The pull force is stably applied on the axial line of a wheel axle without any torsion or moment generated; and the wheel axle is kept stable. Accordingly, the operational accuracy is high; the pull force is large and stable; both the time and labor are saved; the belt pulleys can be pulled down quickly from the wheel axle. The axial pull unloading machine can be widely applied for the disassembling of various belt pulleys.

Description

Pulley shaft unloads the goods from the airplane to drawing

Technical field

The utility model relates to a kind of improvement of belt pulley provision for disengagement, and specifically a kind of Pulley shaft unloads the goods from the airplane to drawing.

Background technology

The various mechanical driving belt wheels that use at present all are to adopt key that its swelling is fixed on the wheel shaft, fixing very firm, when unloading belt pulley, wheel shaft to keep pulling at vertically belt pulley down, if the axial generation certain included angle of power thrusts and wheel shaft, to cause the bending of wheel shaft, in addition, when firmly spurring belt pulley, wheel shaft can not be spurred simultaneously, otherwise the loosening of wheel shaft will be caused.At present, have two kinds for the employed stripping attachment of the dismounting of belt pulley: a kind of is the screw stripping attachment, makes it produce axial force by the screw rod on the rotation stripping attachment, thereby belt pulley is disassembled from wheel shaft, this screw stripping attachment, need very big moment when rotary screw, moment is to multiply each other and get by the power of vertical axial with from the distance of axle, therefore, when producing axial force, also produced the power of vertical axial, when exerting oneself when excessive or uneven, it is crooked that wheel shaft is produced; Another kind is the belt pulley wheel puller that is made of hook, pushing tow screw mandrel, when the dismounting belt pulley, need the staff pawl of hamulaing, and hook is clamped hook belt pulley, another people's rotary screw holds out against axle head, could decontrol hook after waiting to hold out against axle head, otherwise very easily landing from the belt pulley of hook, this belt pulley stripping attachment not only has the power of vertical axial, and operation is wasted time and energy, labour intensity is big, the operating time is long.

Summary of the invention

It is a kind of not only simple in structure that the purpose of this utility model is to provide, and pulling force is stable vertically, do not produce the power of vertical axial, and the Pulley shaft that can stablize, fast belt pulley be left behind from wheel shaft unloads the goods from the airplane to drawing.

For reaching above purpose, the technical scheme that the utility model adopted is: this Pulley shaft unloads the goods from the airplane to drawing, by base, universal rolling wheel constitutes, four bights at base are equipped with universal rolling wheel, it is characterized in that connecting " U " shape plate at an end vertical welding of base upper face, other end vertical welding at the base upper face connects fixed head, fixing hydraulic cylinder on the medial surface of the upper end of fixed head, " U " shape mouth central point of the axis of piston in hydraulic cylinder bar and " U " shape plate point-blank, two ends at base are provided with lifting screw, and two lifting screws are on the center line of base.The utility model is also implemented by following measure: all weld the reinforcement gripper shoe in the outside of " U " shape plate and the outside of fixed head, to prevent that when firmly spurring " U " shape plate and fixed head produce outwards crooked; The width of " U " shape mouth on " U " shape plate is identical with the diameter of wheel shaft, and the diameter of piston in hydraulic cylinder bar is 2/3 of the wheel shaft diameter, and the piston rod end is to the thickness big 10cm of the distance between " U " shape mouth of " U " shape plate than belt pulley.When using the utility model, base is pushed into the bottom of belt pulley, by rotating lifting screw, " U " shape mouth is risen and be stuck on the wheel shaft of belt pulley inboard, simultaneously, make the end alignment wheel shaft of piston rod, restart hydraulic cylinder, and make piston rod withstand on the center of wheel shaft end, and continue the primer fluid cylinder pressure again, can be from the stable belt pulley of leaving behind of wheel shaft upper edge axis.

The beneficial effects of the utility model are: compare with the belt pulley stripping attachment of present use, on the axis that acts on wheel shaft that motive force is stable, no any torque forces and moment produce, and retainer shaft is stable, therefore, performance accuracy height, pulling force big and stablize, time saving and energy saving, can apace belt pulley be left behind from wheel shaft, can be widely used in the dismounting of various belt pulleys.

Description of drawings

Fig. 1 is the utility model structure front-view schematic diagram.

Fig. 2 is the utility model structure schematic top plan view.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2.This Pulley shaft unloads the goods from the airplane to drawing, constitute by base 1, universal rolling wheel 2, four bights at base 1 are equipped with universal rolling wheel 2, it is characterized in that connecting " U " shape plate 3 at an end vertical welding of base 1 upper face, other end vertical welding at base 1 upper face connects fixed head 4, fixing hydraulic cylinder 5 on the medial surface of the upper end of fixed head 4, " U " shape mouth 7 central points of the axis of hydraulic cylinder 5 inner piston rods 6 and " U " shape plate 3 are provided with lifting screw 8 at the two ends of base 1 point-blank.All weld reinforcement gripper shoe 9 in the outside of " U " shape plate 3 and the outside of fixed head 4; The width of " U " shape mouth 7 on " U " shape plate 3 is identical with the diameter of wheel shaft, and the diameter of hydraulic cylinder 5 inner piston rods 6 is 2/3 of the wheel shaft diameter, and piston rod 6 ends are to the thickness big 10cm of the distance between " U " shape mouth 7 of " U " shape plate 3 than belt pulley.

Claims

1, a kind of Pulley shaft unloads the goods from the airplane to drawing, by base (1), universal rolling wheel (2) constitutes, four bights at base (1) are equipped with universal rolling wheel (2), it is characterized in that connecting " U " shape plate (3) at an end vertical welding of base (1) upper face, other end vertical welding at base (1) upper face connects fixed head (4), the fixing hydraulic cylinder (5) of going up on the upper end medial surface of fixed head (4), " U " shape mouth (7) central point of the axis of hydraulic cylinder (5) inner piston rod (6) and " U " shape plate (3) is provided with lifting screw (8) at the two ends of base (1) point-blank.

2, Pulley shaft according to claim 1 unloads the goods from the airplane to drawing, and it is characterized in that all welding reinforcement gripper shoe (9) in the outside of " U " shape plate (3) and the outside of fixed head (4); The width of " U " shape mouth (7) on " U " shape plate (3) is identical with the diameter of wheel shaft, the diameter of hydraulic cylinder (5) inner piston rod (6) is 2/3 of the wheel shaft diameter, and piston rod (6) end is to the thickness big 10cm of the distance between " U " shape mouth (7) of " U " shape plate (3) than belt pulley.