CN201190019Y - Bottom wheel apparatus of hoister - Google Patents
Bottom wheel apparatus of hoister Download PDFInfo
- Publication number
- CN201190019Y CN201190019Y CNU2008200899370U CN200820089937U CN201190019Y CN 201190019 Y CN201190019 Y CN 201190019Y CN U2008200899370 U CNU2008200899370 U CN U2008200899370U CN 200820089937 U CN200820089937 U CN 200820089937U CN 201190019 Y CN201190019 Y CN 201190019Y
- Authority
- CN
- China
- Prior art keywords
- return pulley
- bottom wheel
- plate
- deep groove
- groove ball
- 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 - Lifetime
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Abstract
The utility model relates to a bottom wheel device, in particular to a bottom wheel device of an elevator. The utility model aims to solve the problem in the prior vertical type elevator that the transmission belt of a loading bucket can be slacked after being used for a long time, the two ends of a bottom wheel lie in different horizontal lines when the transmission belt is tightened, thus an external spherical bearing is always in the static deviation from the centre line, the external spherical bearing can be discarded after being used for seven to nine months or at most a year, as a result, the unnecessary economic loss is caused. Both the two deep groove ball bearings of the bottom wheel device are arranged on a bottom wheel shaft, the bottom wheel is arranged on the two deep groove ball bearings, and each end of the bottom wheel shaft is connected with a movable plate on a bottom wheel box. The prior integral structure is changed into a split structure in the bottom wheel device, and the deep groove ball bearings are positioned between the bottom wheel and the bottom wheel shaft. When the transmission belt is tightened, the requirement of the levelness at the two ends of the bottom wheel shaft is not high, the service life of the bearings is long (at least two years), and the service efficiency of the elevator is improved.
Description
Technical field
The utility model relates to a kind of return pulley device.
Background technology
The return pulley (follower) and the return pulley axle of existing vertical gig (particularly soybean gig) are structure as a whole (mostly being casting), are provided with two bearing with spherical outside surfaces between the two ends of return pulley axle and the return pulley case.The characteristics of bearing with spherical outside surface are: be mainly used to bear based on Radial load radially with axial joint load, generally should not bear axial load separately.This kind bearing does not allow an opposite shell that inclination is arranged, and can produce additional axial force under the Radial load effect.Bearing with spherical outside surface is preferably applied in and requires equipment and the simple occasion of parts, for example is used for field machine, transport systems or vehicle for construction.Overwhelming majority bearing with spherical outside surfaces are fixed type bearing, so they are specially adapted to support minor axis, and are applicable to the occasion of the het expansion that only generation is very little.The small het expansion of axle can be by the end-play compensation of bearing.Bearing with spherical outside surface can reach 5 static deviations of spending to disalignment and compensate.The bearing centering angular deviation that need carry out re-lubrication can not surpass 2.5 degree, otherwise the lubrication hole on the outer ring can be plugged, and grease can not be entered.The driving band that vertical gig loads winnowing pan will relax after with a period of time, the position at return pulley axle two ends is not often on same horizon when tightening driving band, bearing with spherical outside surface often is in the static deviation of disalignment, the general use seven to nine months, maximum 1 year, bearing with spherical outside surface just wearing and tearing has been scrapped, and has caused unnecessary economic loss.
The utility model content
The purpose of this utility model is will relax after with a period of time for solving driving band that existing vertical gig loads winnowing pan, the position at return pulley axle two ends is not often on same horizon when tightening driving band, bearing with spherical outside surface often is in the static deviation of disalignment, the general use seven to nine months, maximum 1 year, bearing with spherical outside surface just wearing and tearing has been scrapped, caused the problem of unnecessary economic loss, a kind of return pulley device of gig is provided.The utility model comprises the trap on return pulley axle, two deep groove ball bearings, return pulley and two the return pulley casees, two deep groove ball bearings all are arranged on the return pulley axle, return pulley is arranged on two deep groove ball bearings, and every end of return pulley axle is connected with trap on the return pulley case.Return pulley and return pulley axle that the utility model will have integrative-structure now change the branch body structure into, and deep groove ball bearing is placed between return pulley and the return pulley axle.Deep groove ball bearing simple in structure, easy to use.Be mainly used to bear radial weight, but when increasing bearing end-play, have the performance of certain angular contact ball bearing, can bear footpath, axial connected load.After deep groove ball bearing is contained on the axle, in the end-play scope of bearing, but the longitudinal travel of restrictive axes or shell both direction, therefore can be in the two-way axial location of doing.In addition, this class bearing also has certain aligning ability, still can normal operation when tilting for 2 '～10 ' time with respect to shell aperture.The position levelness at the utility model return pulley axle two ends when tightening driving band is less demanding, and the long service life of bearing (at least two years) has improved the service efficiency of gig.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and Fig. 2 is that the K of Fig. 1 is to view.
The specific embodiment
The specific embodiment one: (comprise trap on return pulley axle 11, two deep groove ball bearings 12, return pulley 13 and two the return pulley casees 16 referring to the present embodiment of Fig. 1～Fig. 2), two deep groove ball bearings 12 all are arranged on the return pulley axle 11, return pulley 13 is arranged on two deep groove ball bearings 12, and every end of return pulley axle 11 is connected with trap on the return pulley case 16.
The specific embodiment two: the difference of (referring to Fig. 1) present embodiment and the specific embodiment one is that it has increased by two oil sealings 8, and each oil sealing 8 is arranged in the return pulley 13 in deep groove ball bearing 12 outsides.The oil sealing 8 of deep groove ball bearing 12 arranged outside can stop that foreign matter enters in the deep groove ball bearing 12 in the return pulley 13, plays to prolong the bearing effect in service life.Other is identical with the specific embodiment one.
The specific embodiment three: (referring to the trap on each the return pulley case 16 of present embodiment of Fig. 1～Fig. 2) by support plate 2, screw rod 3, two coulisses 4, screw plate 6, slide plate 7, two otic placodes 9, bearing pin 10, plate body 14 and two bearing pin nuts 15 are formed, on the surface that is fixed on plate body 14 outsides that two coulisses 4 are parallel to each other, slide plate 7 vertical dual-sides are arranged in the chute 5 that forms between two coulisses 4 and the plate body 14, support plate 2 is fixed on the upper end of plate body 14, screw plate 6 is fixed on the top of slide plate 7 outside faces, support plate 2 is corresponding about in the of 6 with screw plate, the upper end of screw rod 3 is arranged in the support plate 2, the lower end of screw rod 3 is threaded with screw plate 6, the top of screw rod 3 is provided with nut 1, have through hole 17 on the slide plate 7, on the slide plate 7 that is fixed on through hole 17 both sides that two otic placodes 9 are parallel to each other, one end of return pulley axle 11 is arranged between two otic placodes 9, captiveed joint by bearing pin 10 between return pulley axle 11 and two otic placodes 9, each end of bearing pin 10 is by 15 lockings of a bearing pin nut.Trap on the return pulley case 16 of present embodiment is connected with return pulley case 16 by bolt, only needs the trap on two return pulley casees 16 is pulled down and the return pulley device can be taken out when maintenance, maintenance return pulley device.When tightening driving band, the nut 1 that blocks screw rod 3 tops with spanner makes screw rod 3 rotations, and the rotation of screw rod 3 makes screw plate 6 drive slide plate 7 and moves along chute 5, and slide plate 7 drive return pulley axles 11 move down and can tighten driving band.Otherwise return pulley axle 11 is risen.
Claims (3)
1, a kind of return pulley device of gig, it comprises the trap on return pulley axle (11), two deep groove ball bearings (12), return pulley (13) and two the return pulley casees (16), it is characterized in that: two deep groove ball bearings (12) all are arranged on the return pulley axle (11), return pulley (13) is arranged on two deep groove ball bearings (12), and every end of return pulley axle (11) is connected with trap on the return pulley case (16).
2, the return pulley device of gig according to claim 1 is characterized in that: the return pulley device of gig also comprises two oil sealings (8), and each oil sealing (8) is arranged in the return pulley (13) in a deep groove ball bearing (12) outside.
3, the return pulley device of gig according to claim 2, it is characterized in that: the trap on each return pulley case (16) is by support plate (2), screw rod (3), two coulisses (4), screw plate (6), slide plate (7), two otic placodes (9), bearing pin (10), plate body (14) and two bearing pin nuts (15) are formed, on the surface that is fixed on plate body (14) outside that two coulisses (4) are parallel to each other, the vertical dual-side of slide plate (7) is arranged in the chute (5) that forms between two coulisses (4) and the plate body (14), support plate (2) is fixed on the upper end of plate body (14), screw plate (6) is fixed on the top of slide plate (7) outside face, support plate (2) is corresponding up and down with screw plate (6), the upper end of screw rod (3) is arranged in the support plate (2), the lower end of screw rod (3) is threaded with screw plate (6), the top of screw rod (3) is provided with nut (1), have through hole (17) on the slide plate (7), on the slide plate (7) that is fixed on through hole (17) both sides that two otic placodes (9) are parallel to each other, one end of return pulley axle (11) is arranged between two otic placodes (9), captiveed joint by bearing pin (10) between return pulley axle (11) and two otic placodes (9), each end of bearing pin (10) is locked by a bearing pin nut (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200899370U CN201190019Y (en) | 2008-05-12 | 2008-05-12 | Bottom wheel apparatus of hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200899370U CN201190019Y (en) | 2008-05-12 | 2008-05-12 | Bottom wheel apparatus of hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201190019Y true CN201190019Y (en) | 2009-02-04 |
Family
ID=40334175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200899370U Expired - Lifetime CN201190019Y (en) | 2008-05-12 | 2008-05-12 | Bottom wheel apparatus of hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201190019Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986513A (en) * | 2015-07-12 | 2015-10-21 | 安徽捷迅光电技术有限公司 | Adjustable transmission mechanism |
| CN105202330A (en) * | 2015-07-12 | 2015-12-30 | 安徽捷迅光电技术有限公司 | Modularized comprehensive visual platform |
-
2008
- 2008-05-12 CN CNU2008200899370U patent/CN201190019Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986513A (en) * | 2015-07-12 | 2015-10-21 | 安徽捷迅光电技术有限公司 | Adjustable transmission mechanism |
| CN105202330A (en) * | 2015-07-12 | 2015-12-30 | 安徽捷迅光电技术有限公司 | Modularized comprehensive visual platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090204 |