CN202499631U - Back gear assembly of construction elevating mechanism - Google Patents
Back gear assembly of construction elevating mechanism Download PDFInfo
- Publication number
- CN202499631U CN202499631U CN2012201016450U CN201220101645U CN202499631U CN 202499631 U CN202499631 U CN 202499631U CN 2012201016450 U CN2012201016450 U CN 2012201016450U CN 201220101645 U CN201220101645 U CN 201220101645U CN 202499631 U CN202499631 U CN 202499631U
- Authority
- CN
- China
- Prior art keywords
- backgear
- gear assembly
- back gear
- axle
- shaft sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title abstract description 6
- 230000003028 elevating effect Effects 0.000 title abstract 3
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a back gear assembly of a construction elevating mechanism. The back gear assembly includes an antifriction bearing, a shaft which is used for installing the antifriction bearing, and a shaft sleeve which can fix the shaft. The shaft sleeve is arranged in a positioning hole, and the positioning hole is arranged in a positioning part. The back gear assembly is characterized in that the shaft sleeve is an eccentric shaft sleeve. The back gear assembly positions the shaft of the antifriction bearing via the eccentric shaft sleeve, so the size of a gap between a working face of the antifriction bearing and a rack back face can be adjusted by adjusting the eccentric shaft sleeve, and consequently the adjustment of the gap between a back gear and a rack is realized. The back gear assembly can satisfy the working requirements of various operation sites, and can realize the smooth operation of the construction elevating mechanism.
Description
Technical field
The utility model belongs to the vehicle for construction field, is specifically related to the backgear unit construction of the central lifting mechanism of a kind of building operation.
Background technology
In the existing construction implement; What be used for personnel and material vertical transport or transportation is the framework of a boxes and baskets structure; Its top is provided with and drives this framework lifting mechanism up and down, and this lifting mechanism is to realize being shifted up and down of framework through the transmission that cooperates between the tooth bar of gear and vertical direction, and the flank of tooth of its middle rack is meshed with gear; The back of the tooth bar backgear that reclined; The purpose of this backgear is to be used for location and spacing tooth bar, and the clamping through backgear and gear mesh tooth bar is with the home position of maintenance tooth bar at vertical direction, the deficiency under one-sided to prevent (flank of tooth side) is stressed; Existing backgear, its structure comprise a fix shaft and are installed in the antifriction-bearing box on this fix shaft that the outer facade of this antifriction-bearing box forms the driving surface of backgear; And in actual use, because the gap between tooth bar and backgear is not very fixing, therefore either large or small deviation can appear, when excessive clearance, the tooth bar easy deformation swing, bad stability also can occur with hour rack; And when the gap was too small, stuck situation appearred easily, and then backgear can't along with gear with about.
The utility model content
The utility model technical matters to be solved is to provide a kind of building hoist structure backgear assembly that can adjust gap between backgear and tooth bar flexibly, with the swing of avoiding the lifting process middle rack or stuck.
Its technical matters to be solved can be implemented through following technical scheme.
A kind of backgear assembly of building hoist structure; Comprise antifriction-bearing box, the axle of said antifriction-bearing box and the axle sleeve of locating said axle are installed, said axle sleeve is placed in the knock hole, and said knock hole is opened on the location parts; Its characteristics are that said axle sleeve is an excentric sleeve.
As the further improvement of present technique scheme, also comprise a tie down screw that said axle and said positioning element are locked vertically.
As the further improvement of present technique scheme, the roller of said antifriction-bearing box forms the backgear of said building hoist structure, and said backgear has a cylindrical outer facade.
Adopt the backgear assembly of the building hoist structure of technique scheme; Come the axle of positioning and rolling bearing through a deflection axle sleeve; And then realize being partial to the size that axle sleeve is adjusted the driving surface and the tooth bar back gap of antifriction-bearing box through adjustment; Promptly realize the adjustment in gap between backgear and tooth bar, help satisfying the work requirements of various operation site, realize the smooth operation of building hoist structure.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model being done one specifies.
Fig. 1 is the structural representation of the utility model;
---round clamp 2---eccentric bushing 3---axle 4---backgear 5---end cap 6---adapter plate 61---mounting hole 101---socket bolt 102---nut 103---spring washer 104---ball-bearing casings among the figure: 1
The specific embodiment
The backgear assembly of building hoist structure as shown in Figure 1 is installed in an end of lifter rack, is used for locating on the adapter plate 6 of this backgear assembly offering circular mounting hole 61; Eccentric bushing 2 is installed in this mounting hole 61; The central axis of the eccentric orfice of eccentric bushing 2 sees among the figure that shown in the O2, ball-bearing casing 104 has one 3, and axle 3 is installed in the eccentric orfice of eccentric bushing 2; Axle 3 central axis sees among the figure that shown in the O1, the roller of ball-bearing casing 104 (antifriction-bearing box) forms backgear 4.Along eccentric bushing 2 and axle 3 axially, socket bolt 101, nut 102, spring washer 103 and round clamp 1 carry out locking positioning with axle sleeve 2, axle 3 together with ball-bearing casing 104 and backgear 4, whole erection is in the mounting hole 61 of adapter plate 6; One side of ball-bearing casing 104 is an end cap 5.
Come the spatial relation of tune-up center axes O 1 and O2 through rotating eccentric sleeve 2, and then the control of the relative gap at driving surface and the tooth bar back side of backgear 4 when realizing using.Concrete adjustment mode is the jam nut 102 that unclamps on the socket bolt 101, and rotating eccentric sleeve 2 is locked to relevant position subsequently.
This backgear assembly helps overcoming the defective that existing backgear assembly backgear driving surface and tooth bar back gap can't be adjusted, and is easy to use, is convenient to adapt to different working conditions.
Claims (3)
1. the backgear assembly of a building hoist structure; Comprise antifriction-bearing box, the axle of said antifriction-bearing box and the axle sleeve of locating said axle are installed, said axle sleeve is placed in the knock hole, and said knock hole is opened on the location parts; It is characterized in that said axle sleeve is an excentric sleeve.
2. according to the backgear assembly of the said building hoist structure of claim 1, it is characterized in that, also comprise a tie down screw that said axle and said positioning element are locked vertically.
3. according to the backgear assembly of claim 1 or 2 said building hoist structures, it is characterized in that the roller of said antifriction-bearing box forms the backgear of said building hoist structure, said backgear has a cylindrical outer facade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201016450U CN202499631U (en) | 2012-03-16 | 2012-03-16 | Back gear assembly of construction elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201016450U CN202499631U (en) | 2012-03-16 | 2012-03-16 | Back gear assembly of construction elevating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202499631U true CN202499631U (en) | 2012-10-24 |
Family
ID=47036252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201016450U Expired - Fee Related CN202499631U (en) | 2012-03-16 | 2012-03-16 | Back gear assembly of construction elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202499631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429718A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Back gear mechanism used for lift |
| CN111785561A (en) * | 2020-04-02 | 2020-10-16 | 平高集团有限公司 | A control switch for a controllable arrester and its operating mechanism fixing structure |
-
2012
- 2012-03-16 CN CN2012201016450U patent/CN202499631U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429718A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Back gear mechanism used for lift |
| CN111785561A (en) * | 2020-04-02 | 2020-10-16 | 平高集团有限公司 | A control switch for a controllable arrester and its operating mechanism fixing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20160316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |