CN202744281U - Screw hinged lifting jack - Google Patents
Screw hinged lifting jack Download PDFInfo
- Publication number
- CN202744281U CN202744281U CN 201220381003 CN201220381003U CN202744281U CN 202744281 U CN202744281 U CN 202744281U CN 201220381003 CN201220381003 CN 201220381003 CN 201220381003 U CN201220381003 U CN 201220381003U CN 202744281 U CN202744281 U CN 202744281U
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- screw
- hinged
- leading screw
- drive motor
- jointed shaft
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Abstract
The utility model provides a screw hinged lifting jack. The lifting jack comprises a base, a guide column, guide wheels, a screw, a nut, a drive motor and a bearing platform and further comprises an installation seat. The drive motor and the installation seat are hinged through a first hinge shaft, and a rolling bearing is arranged in the installation seat; one end of the screw is fixed in the rolling bearing and connected with a rotation shaft of the drive motor, and the other end is suspended in the air; and the nut is hinged with the bearing platform through a second hinge shaft, and the first hinge shaft is parallel with the second hinge shaft. The drive motor is connected with the screw through the hinged installation seat, and the two hinge shafts are parallel, so that the screw can shift along with the transverse shift of the nut, and the transverse shifting defects caused by coaxial errors of the nut and the screw are compensated.
Description
Technical field
The utility model relates to a kind of weight lifting equipment technology, relates in particular to the hinged lifting car lifting J-Horner of a kind of leading screw.
Background technology
Lorry needs to erect in the process of maintenance or assembling, thereby has the demand that the weight lifting equipment is provided, and existing car lifting J-Horner namely is generally used for realizing this type of weight lifting function.
Fig. 1 a is the main TV structure scheme drawing of existing car lifting J-Horner, and Fig. 1 b is the left TV structure scheme drawing of car lifting J-Horner among Fig. 1 a.This car lifting J-Horner comprises base 1, guidepost 2, track adjusting wheel 3, leading screw 4, screw 5, drive motor 6 and plummer 7; Wherein, guidepost 2 vertically is fixed on the base 1; Leading screw 4 is arranged in the cavity of guidepost 2, and the up and down two ends of leading screw 4 are connected with guidepost 2 two ends by ball bearing of main shaft 8 respectively, rotates under the driving of drive motor 6; Screw 5 is set on the leading screw 4, and the both sides of screw 5 stretch out jointed shaft 9, passes the plummer 7 in guidepost 2 outsides, and is hinged with plummer 7; Be provided with track adjusting wheel 3 on the plummer 7, track adjusting wheel 3 can be rotated, and generally cooperates with the registration mast 10 of fixing, and guiding plummer 7 is finished dipping and heaving along guidepost 2, avoids plummer 7 to rotate.
Existing car lifting J-Horner type of drive is that leading screw drives the screw lifting, but wherein has following defective: because car lifting J-Horner often is not whole processing but formed by each assembling parts, thus there is the setting accuracy problem, so that the right alignment of screw and leading screw is not high.This is for large-scale the adding for the vehicle frame that needs the weights such as lifting lorry, and this problem is particularly outstanding.When there are coaxiality deviation in screw and leading screw, when screw during with respect to the leading screw up-and-down movement, the lateral excursion of screw will occur, make the circumferential force of screw on leading screw unbalanced.Although the hinged place horizontally set certain interval with screw and plummer in the prior art is used for remedying this error, because the larger weight of plummer carrying causes plummer to be pressed on the screw, lateral clearance can not play a role.Therefore, above-mentioned lateral excursion problem can't solve, and produces friction noise when lifting, and the softer screw of material can wear and tear when serious.
The utility model content
The utility model provides a kind of leading screw hinged lifting car lifting J-Horner, the lateral excursion defective of bringing to remedy screw and leading screw coaxiality error.
The utility model provides a kind of leading screw hinged lifting car lifting J-Horner, comprises base, guidepost, track adjusting wheel, leading screw, screw, drive motor and plummer, and described guidepost vertically is fixed on the base; Leading screw is arranged in the cavity of guidepost; Nut sleeve is located on the described leading screw; Be provided with track adjusting wheel on the plummer, be used for the guiding plummer along the guidepost dipping and heaving, wherein:
Also comprise a mount pad, described drive motor and mount pad are hinged by the first jointed shaft, are provided with antifriction-bearing box in the described mount pad;
One end of described leading screw is fixed in the described antifriction-bearing box, is connected with the turning cylinder of described drive motor, and the other end of described leading screw is unsettled;
Described screw is hinged by the second jointed shaft and described plummer, and described the first jointed shaft is parallel with the direction of the second jointed shaft.
The hinged lifting car lifting J-Horner of aforesaid leading screw, preferably: described drive motor and mount pad are arranged on the top of described guidepost.
The hinged lifting car lifting J-Horner of aforesaid leading screw, preferably: described the first jointed shaft split is arranged on the both sides of described mount pad, and is hinged with drive motor respectively; Described the second jointed shaft split is arranged on the both sides of described screw, and is hinged with described plummer respectively.
The hinged lifting car lifting J-Horner of aforesaid leading screw, preferably: the cross side at the first jointed shaft also arranges the skew gap.
The hinged lifting car lifting J-Horner of the leading screw that the utility model provides be connected with leading screw because drive motor passes through hinged mount pad, and two jointed shafts is parallel, and then leading screw can be offset along with the lateral excursion of screw.Can avoid so also having avoided the peripheral force between leading screw and the screw inhomogeneous because leading screw up and down definitely fixedly causes the larger friction of generation between itself and the screw in two ends, thereby remedy the lateral excursion defective that screw and leading screw coaxiality error bring.
Description of drawings
Fig. 1 a is the main TV structure scheme drawing of existing car lifting J-Horner;
Fig. 1 b is the left TV structure scheme drawing of car lifting J-Horner among Fig. 1 a;
The main TV structure scheme drawing of the hinged lifting car lifting J-Horner of leading screw that Fig. 2 a provides for the utility model embodiment;
Fig. 2 b is the left TV structure scheme drawing of the hinged lifting car lifting J-Horner of leading screw among Fig. 2 a.
The specific embodiment
The main TV structure scheme drawing of the hinged lifting car lifting J-Horner of leading screw that Fig. 2 a provides for the utility model embodiment, Fig. 2 b is the left TV structure scheme drawing of the hinged lifting car lifting J-Horner of leading screw among Fig. 2 a.
The hinged lifting car lifting J-Horner of this leading screw comprises base 1, guidepost 2, track adjusting wheel 3, leading screw 4, screw 5, drive motor 6 and plummer 7, and described guidepost 2 vertically is fixed on the base 1; Leading screw 4 is arranged in the cavity of guidepost 2; Screw 5 is set on the described leading screw 4; Be provided with track adjusting wheel 3 on the plummer 7, be used for guiding plummer 7 along guidepost 2 dipping and heaving, wherein, also comprise a mount pad 11, described drive motor 6 is hinged by the first jointed shaft 91 with mount pad 11, for example, housing and the mount pad 11 of drive motor 6 can be hinged; Be provided with antifriction-bearing box in the described mount pad 11, this antifriction-bearing box can be the multiple implementations such as ball bearing of main shaft; One end of described leading screw 4 is fixed in the described antifriction-bearing box, is connected with the turning cylinder of described drive motor 6, and the other end of described leading screw 4 is unsettled; Described screw 5 is hinged by the second jointed shaft 92 and described plummer 7, and described the first jointed shaft 91 is parallel with the direction of the second jointed shaft 92.
The technical scheme that the utility model embodiment provides, because drive motor is connected with leading screw by hinged mount pad, and two jointed shafts are parallel, if there are coaxiality error in leading screw and screw, hinged relationship between drive motor and the mount pad allows leading screw that certain transverse shifting amount is arranged, then leading screw can be offset along with the lateral excursion of screw, and because the other end of leading screw is unsettled, so the side-play amount of leading screw is more flexible.Can avoid so also having avoided the peripheral force between leading screw and the screw inhomogeneous because leading screw up and down definitely fixedly causes the larger friction of generation between itself and the screw in two ends.
On the basis of such scheme, drive motor 6 and mount pad 11 preferably are arranged on the top of guidepost 2, then the first jointed shaft 91 places can be supported by guidepost 2, needn't bear the weight weight on the plummer 7, so that the first jointed shaft 91 places can not be difficult to activity because weight compresses.
Present embodiment provides a kind of typical structure of jointed shaft, i.e. the first jointed shaft 91 splits are arranged on the both sides of mount pad 11, and are hinged with drive motor 6 respectively; 92 splits of the second jointed shaft are arranged on the both sides of screw 5, and are hinged with plummer 7 respectively.
Preferably at the cross side of the first jointed shaft 91 skew gap 93 is set also, for example, the hinge hole on the mount pad 11 also arranges lateral clearance in the both lateral sides of circle, makes the transverse shifting amount between mount pad 11 and the drive motor 6 larger.
The utility model embodiment adopts the hinged lift structure of screw-nut, eliminates screw to the transverse force of leading screw in the process of installing and using.Even the in use gapped movement of total also can be adjusted automatically at two hinge-points up and down, then leading screw and screw are stressed more reasonable, have all obtained prolongation both service lifes.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (4)
1. the hinged lifting car lifting J-Horner of leading screw comprises base, guidepost, track adjusting wheel, leading screw, screw, drive motor and plummer, and described guidepost vertically is fixed on the base; Leading screw is arranged in the cavity of guidepost; Nut sleeve is located on the described leading screw; Be provided with track adjusting wheel on the plummer, be used for the guiding plummer along the guidepost dipping and heaving, it is characterized in that:
Also comprise a mount pad, described drive motor and mount pad are hinged by the first jointed shaft, are provided with antifriction-bearing box in the described mount pad;
One end of described leading screw is fixed in the described antifriction-bearing box, is connected with the turning cylinder of described drive motor, and the other end of described leading screw is unsettled;
Described screw is hinged by the second jointed shaft and described plummer, and described the first jointed shaft is parallel with the direction of the second jointed shaft.
2. the hinged lifting car lifting J-Horner of leading screw according to claim 1, it is characterized in that: described drive motor and mount pad are arranged on the top of described guidepost.
3. the hinged lifting car lifting J-Horner of leading screw according to claim 1, it is characterized in that: described the first jointed shaft split is arranged on the both sides of described mount pad, and is hinged with drive motor respectively; Described the second jointed shaft split is arranged on the both sides of described screw, and is hinged with described plummer respectively.
4. it is characterized in that according to claim 1 and 2 or the hinged lifting car lifting J-Horner of 3 described leading screws: the cross side at the first jointed shaft also arranges the skew gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381003 CN202744281U (en) | 2012-08-02 | 2012-08-02 | Screw hinged lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381003 CN202744281U (en) | 2012-08-02 | 2012-08-02 | Screw hinged lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744281U true CN202744281U (en) | 2013-02-20 |
Family
ID=47703710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381003 Expired - Fee Related CN202744281U (en) | 2012-08-02 | 2012-08-02 | Screw hinged lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202744281U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293394A (en) * | 2015-11-24 | 2016-02-03 | 重庆红亿机械有限公司 | Synchronous lifting system of car lifting unit |
| CN105576892A (en) * | 2016-02-25 | 2016-05-11 | 吴善方 | Manual lifting machinery controller and control method thereof |
| CN107915170A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | Lift the de- loading system of screw auxiliary of load-bearing for a long time for car lifting J-Horner |
| CN109969985A (en) * | 2019-05-06 | 2019-07-05 | 青岛四机设备工程有限公司 | A kind of both arms car lifting J-Horner |
-
2012
- 2012-08-02 CN CN 201220381003 patent/CN202744281U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293394A (en) * | 2015-11-24 | 2016-02-03 | 重庆红亿机械有限公司 | Synchronous lifting system of car lifting unit |
| CN105293394B (en) * | 2015-11-24 | 2017-12-29 | 重庆红亿机械有限公司 | Unwheeling unit synchro-lift system |
| CN105576892A (en) * | 2016-02-25 | 2016-05-11 | 吴善方 | Manual lifting machinery controller and control method thereof |
| CN107915170A (en) * | 2017-11-14 | 2018-04-17 | 中车长春轨道客车股份有限公司 | Lift the de- loading system of screw auxiliary of load-bearing for a long time for car lifting J-Horner |
| CN107915170B (en) * | 2017-11-14 | 2019-09-10 | 中车长春轨道客车股份有限公司 | The screw for lifting load-bearing for a long time for car lifting J-Horner assists de- loading system |
| CN109969985A (en) * | 2019-05-06 | 2019-07-05 | 青岛四机设备工程有限公司 | A kind of both arms car lifting J-Horner |
| CN109969985B (en) * | 2019-05-06 | 2024-02-09 | 青岛四机设备工程有限公司 | Double-arm car lifting jack |
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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: 20130220 Termination date: 20170802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |