CN201317650Y

CN201317650Y - Worm screw mandrel lifter

Info

Publication number: CN201317650Y
Application number: CNU2008201705461U
Authority: CN
Inventors: 莫华华; 李胜
Original assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Current assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Priority date: 2008-12-19
Filing date: 2008-12-19
Publication date: 2009-09-30
Anticipated expiration: 2018-12-19

Abstract

The utility model relates to a worm screw mandrel lifter, aiming to solve the technical problems of big processing and assembling difficulties and small axial force bearing capacity of the existing worm screw mandrel lifter. The worm screw mandrel lifter is characterized in that a big end cap (6) is matched with a box body (10); a worm (13) and a worm wheel (8) are installed in the box body (10); the worm wheel (8) is connected with the box body (10) through a bearing; and a screw mandrel (3) running through the box body (10) and the big end cap (6) are fixedly connected at the middle of the worn wheel (8). The worm screw mandrel lifter is characterized in that a plurality of holes are arranged on the big end cap (6); bolts (4) fixed with the box body (10) are arranged in the holes; and the bearing is a thrust ball bearing (9).

Description

The worm gear screw lift

Technical field

The utility model relates to a kind of load lifting machinery, specifically is a kind of worm gear screw lift.

Background technology

In the prior art, worm gear screw lift product mainly contains two kinds, and is a kind of by the JB/T8809-1998 standard production, and another kind is given birth to by the Taiwan standard.These two kinds of merits and faultss that all have separately, preceding a kind of be that 10 years standardized production history is arranged, its big end cap matches with large calibre threads with casing, its processing and assembly difficulty are big, and product is aging; A kind of worm gear in back is by circular cone ball bearing of main shaft and casing bonded assembly, and its axial force that bears is little, produces not according to China's relevant criterion because of it in addition, is unfavorable for marketing.

Summary of the invention

The utility model technical issues that need to address are, overcome both shortcomings, are combined into a kind of new worm gear screw lift.

Worm gear screw lift of the present utility model, a big end cap cooperates with casing, worm and worm wheel are installed in the casing, worm gear is connected with casing by bearing, be connected with screw mandrel in the middle of the worm gear and connect casing and big end cap, it is characterized in that on the described big end cap some holes being arranged, have bolt and casing to fix in the hole; Described bearing is a thrust ball bearing.

As preferably, under the big end cap and the cavity that cooperates with thrust ball bearing is arranged respectively at the interior end of casing, to guarantee the thrust ball bearing accurate positioning, solid and reliable.

As preferably, big end cap has the lower bulge that matches with the casing opening; Described cavity is located in the lower bulge, cooperates accurately with casing to guarantee big end cap simultaneously.

The utility model has absorbed both constructional features of background technology, thus have processing and assembly difficulty low, axial characteristics such as holding capacity raising.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the schematic top plan view of Fig. 1.

The specific embodiment

Below by embodiment, the technical solution of the utility model is described in further detail.

Embodiment 1.See Fig. 1,2, this routine worm gear screw lift belongs to SPS5M-1A II-50-Z-C model.It has a big end cap 6, and big end cap has lower bulge 6-1 6 times, and cavity is arranged in the lower bulge; Boss 6-1 under the big end cap 6 snaps in the opening on the casing 10.Be evenly equipped with 6 holes on the big end cap 6, have bolt 4, spring washer 5 to fix in the hole with casing 10.

Casing 10 1 sides are provided with through type lubricating cup 7, and worm screw 13 and worm gear 8 are installed in the casing.Worm screw 13 is installed in the casing 10 by part levels such as oil seal cover 14, circular cone ball bearing of main shaft 15, backbone sealing ring 16 and hexagonal socket nuts 17, and its termination is provided with A type flat key 12; The upper and lower thrust ball bearing 9 at worm gear 8 two ends is positioned over respectively in lower bulge 6-1 and the cavity of casing at the 10 interior ends.The worm gear 8 middle screw mandrels 3 that connect casing 10 and big end cap 6 that are connected with, the part that screw mandrel exposes casing 10 has pillar 11 outward, and there is the screw mandrel flange of fixing with roundlet nut 12 on the part top that screw mandrel exposes big end cap 6.

Claims

1, a kind of worm gear screw lift, a big end cap (6) cooperates with casing (10), worm screw (13) and worm gear (8) are installed in the casing (10), worm gear (8) is connected with casing (10) by bearing, be connected with screw mandrel (3) in the middle of the worm gear (8) and connect casing (10) and big end cap (6), it is characterized in that on the described big end cap (6) some holes being arranged, have bolt (4) and casing (10) fixing in the hole; Described bearing is thrust ball bearing (9).

2, worm gear screw lift according to claim 1 is characterized in that under the described big end cap (6) and the cavity that cooperates with thrust ball bearing (9) being arranged respectively at the interior end of casing (10).

3, worm gear screw lift according to claim 1 and 2 is characterized in that described big end cap (6) has the lower bulge (6-1) that matches with casing (10) opening; Described cavity is located in the lower bulge (6-1).