CN212387208U

CN212387208U - Tail shaft structure of tail part of hoisting machine

Info

Publication number: CN212387208U
Application number: CN202020898511.0U
Authority: CN
Inventors: 周小平; 张超
Original assignee: Jiande Weiye Machinery Industry Co ltd
Current assignee: Jiande Weiye Machinery Industry Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-22
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a tail-shaft structure of lifting machine afterbody, including suit in proper order on tail-shaft (1) and with tail pulley (21) of tail-shaft (1) axis symmetric distribution, balancing weight (22) and packing subassembly (23), packing subassembly (23) compress tightly the activity from top to bottom in tight frame (31) that rises through the eccentric bolt in both sides, be equipped with slide rail (32) on tight frame (31) that rises, the both ends symmetry of tail-shaft (1) is equipped with well cover (24), the outside of well cover (24) is equipped with axle sleeve (25), the outside of axle sleeve (25) is equipped with slide (26) of being connected with slide rail (32) cooperation. The utility model has the characteristics of sealing performance is good, still has the characteristics that job stabilization nature is good, long service life.

Description

Tail shaft structure of tail part of hoisting machine

Technical Field

The utility model relates to a lifting machine afterbody structure, especially a tail-shaft structure of lifting machine afterbody.

Background

The two ends of a tail shaft of the tail part of the existing lifter in the market are arranged to be in matched connection with a tensioning frame through a bearing structure, the tensioning frame is of an external weight box structure, a movable door is arranged outside the tensioning frame, and a framework oil seal is adopted for sealing. The tensioning and sealing structure has certain defects, the sealing performance is poor, when the tail part of the lifter shakes up and down, dust leakage can be generated from the end part of the tail shaft of the lifter and the movable plate, dust is easy to raise, the environment pollution is large, and the framework oil seal needs to be replaced frequently. It is inconvenient to use. Therefore, the existing tail structure of the lifter has the problem of poor sealing performance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail-shaft structure of lifting machine afterbody. The utility model has the characteristics of sealing performance is good, still has the characteristics that job stabilization nature is good, long service life.

The technical scheme of the utility model: the tail shaft structure of the tail part of the elevator comprises a tail wheel, a balancing weight and packing assemblies, wherein the tail wheel, the balancing weight and the packing assemblies are sequentially sleeved on a tail shaft and are symmetrically distributed on the central axis of the tail shaft, the packing assemblies are pressed in a tensioning frame through eccentric bolts on two sides to move up and down, a sliding rail is arranged on the tensioning frame, two ends of the tail shaft are symmetrically provided with middle sleeves, a shaft sleeve is arranged outside the middle sleeves, and a sliding seat which is connected with the sliding rail in a matched mode is arranged outside the shaft sleeve.

In the tail shaft structure of the tail part of the hoisting machine, the tail wheel is a toothed wheel or a smooth wheel.

In the tail shaft structure of the tail part of the hoisting machine, the outer sides of the tensioning frames are provided with the sealing doors.

In the tail shaft structure of the tail part of the hoisting machine, the slide seat is provided with the lead screw guide sleeve, the lead screw guide sleeve is internally provided with the compression lead screw penetrating out of the tension frame, the compression lead screw is sleeved with the spring, the outer part of the spring is sequentially provided with the upper spring guide sleeve, the dustproof pipe and the lower spring guide sleeve, the compression lead screw is provided with the upper nut at the outer part of the tension frame, and the compression lead screw is provided with the lower nut at the lower part of the lower spring guide sleeve.

Compared with the prior art, the utility model has the advantages that the packing component structure is arranged on the tail shaft to replace the skeleton oil seal structure of the existing hoister for labyrinth sealing, the sealing performance is good, and the phenomenon of dust leakage from the shaft end is avoided; the counterweight block is arranged on the tail shaft to replace the existing external configuration box structure, so that the tensioning force is larger, the structure is more compact, the tail volume is reduced, an external full-sealing structure is facilitated, the sealing performance is improved, and the ash leakage phenomenon is reduced; the end of the tail shaft is provided with a combined structure of the middle sleeve, the shaft sleeve and the sliding seat, so that the bearing structure of the existing elevator is replaced, the stability is better, the dust is more resistant, and the service life is longer.

Therefore, the utility model has the characteristics of sealing performance is good, still have the characteristics that job stabilization nature is good, long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The labels in the figures are: 1. a tail shaft; 21. a tail wheel; 22. a balancing weight; 23. a packing assembly; 24. a middle sleeve; 25. a shaft sleeve; 26. a slide base; 31. a tensioning frame; 32. a slide rail; 33. a sealing door; 41. a screw rod guide sleeve; 42. pressing the screw rod; 43. a spring; 44. a guide sleeve is arranged on the spring; 45. a dust-proof pipe; 46. a lower spring guide sleeve; 47. screwing a nut; 48. and (5) a lower nut.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given.

As shown in fig. 1, a tail shaft structure of a tail part of a hoist comprises a tail pulley 21, a counterweight 22 and a packing assembly 23 which are sequentially sleeved on a tail shaft 1 and symmetrically distributed along an axial line of the tail shaft 1, wherein the packing assembly 23 is pressed tightly in a tensioning frame 31 through eccentric bolts at two sides to move up and down, a sliding rail 32 is arranged on the tensioning frame 31, middle sleeves 24 are symmetrically arranged at two ends of the tail shaft 1, a shaft sleeve 25 is arranged outside the middle sleeves 24, and a sliding seat 26 which is in fit connection with the sliding rail 32 is arranged outside the shaft sleeve 25. The packing assembly is a packing assembly purchased in the market.

The surface of the tail wheel 21 is a toothed wheel or a smooth wheel. And the smooth wheel is adopted, so that the operation is more stable compared with the existing toothed chain wheel.

And sealing doors 33 are arranged on the outer sides of the tensioning frames 31.

The sliding seat 26 is provided with a screw guide sleeve 41, a pressing screw 42 penetrating through the tension frame 31 is arranged in the screw guide sleeve 41, a spring 43 is sleeved on the pressing screw 42, an upper spring guide sleeve 44, a dustproof pipe 45 and a lower spring guide sleeve 46 are sequentially arranged outside the spring 43, an upper nut 47 is arranged outside the tension frame 31 on the pressing screw 42, and a lower nut 48 is arranged below the lower spring guide sleeve 46 on the pressing screw 42. The upper nut 47 and the lower nut 48 play a limiting role, the dustproof pipe 45 is sleeved outside the upper spring guide sleeve 44 and the lower spring guide sleeve 46 and is matched with a protection spring, the dustproof and damage-proof effects are achieved, and the service life of the spring is prolonged.

The utility model has the advantages that the structure of the packing component 23 arranged on the tail shaft 1 replaces the framework oil seal structure of the existing hoister to carry out labyrinth sealing, the sealing performance is good, and the phenomenon of dust leakage from the shaft end is avoided; the counterweight block 22 is arranged on the tail shaft 1 to replace the existing external configuration box structure, so that the tensioning force is larger, the structure is more compact, the tail volume is reduced, an external full-sealing structure is facilitated, the sealing performance is improved, and the ash leakage phenomenon is reduced; the end part of the tail shaft 1 is provided with a combined structure of a middle sleeve 24, a shaft sleeve 25 and a sliding seat 26, so that the bearing structure of the existing hoister is replaced, the stability is better, the dust is more resistant, and the service life is longer; the intermediate sleeve 24, the shaft sleeve 25 and the sliding seat 26 are all quenched by wear-resistant alloy, and have good high-temperature resistance. Still set up the supplementary tight structure that rises of spring 43 between tailshaft 1 and the tight frame 31 that rises, improve the tailshaft 1 life-span, reduce the wearing and tearing of tailshaft 1.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides a tail-shaft structure of lifting machine afterbody which characterized in that: the packing device comprises a tail wheel (21), a balancing weight (22) and a packing assembly (23), wherein the tail wheel (21), the balancing weight (22) and the packing assembly (23) are sequentially sleeved on a tail shaft (1) and symmetrically distributed along the axis of the tail shaft (1), the packing assembly (23) is pressed tightly to move up and down in a tensioning frame (31) through eccentric bolts at two sides, a sliding rail (32) is arranged on the tensioning frame (31), two ends of the tail shaft (1) are symmetrically provided with middle sleeves (24), the outer portion of each middle sleeve (24) is provided with a shaft sleeve (25), and the outer portion of each shaft sleeve (25) is provided with a sliding seat (26.

2. The tail shaft structure of the tail part of the hoisting machine as claimed in claim 1, wherein: the tail wheel (21) is a toothed wheel or a smooth wheel.

3. The tail shaft structure of the tail part of the hoisting machine as claimed in claim 1, wherein: and sealing doors (33) are arranged on the outer sides of the tensioning frames (31).

4. The tail shaft structure of the tail part of the hoisting machine as claimed in claim 1, wherein: the tension device is characterized in that a screw guide sleeve (41) is arranged on the sliding seat (26), a compression screw (42) penetrating out of the tension frame (31) is arranged in the screw guide sleeve (41), a spring (43) is sleeved on the compression screw (42), an upper spring guide sleeve (44), a dustproof pipe (45) and a lower spring guide sleeve (46) are sequentially arranged outside the spring (43), an upper nut (47) is arranged outside the tension frame (31) on the compression screw (42), and a lower nut (48) is arranged below the lower spring guide sleeve (46) on the compression screw (42).