CN202779283U - Pit repairing device - Google Patents
Pit repairing device Download PDFInfo
- Publication number
- CN202779283U CN202779283U CN 201220497118 CN201220497118U CN202779283U CN 202779283 U CN202779283 U CN 202779283U CN 201220497118 CN201220497118 CN 201220497118 CN 201220497118 U CN201220497118 U CN 201220497118U CN 202779283 U CN202779283 U CN 202779283U
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- CN
- China
- Prior art keywords
- drive rod
- bearing
- driving
- depression
- pit
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- 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
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Abstract
The utility model discloses a pit repairing device, relates to manufacturing equipment of crane main beams, and particularly relates to pit deformation repairing equipment of main beam cover plates and webs. The pit repairing device comprises a support, a driving bar, a draw bar and a driving device, wherein the support is used for supporting on the surface near a pit of a workpiece, one end of the driving bar is connected with the support in a hinged mode, the upper end of the draw bar is connected with the driving bar in a hinged mode, the lower end of the draw bar is used for being fixedly connected with a concave position of the pit of the workpiece, and the driving device is used for driving the driving bar to rotate around the support and pulling the draw bar upwards. A labor-saving lever is formed by the support, the driving bar, the draw bar and the driving device integrally, wherein the support serves as a pivot of the labor-saving lever, and the driving bar serves as a lever of the labor-saving lever. The driving bar is capable of rising under the driving of the driving device and driving the draw bar connected with the concave position of the pit to rise, and therefore the concave position is pulled up and the pit is repaired. The pit repairing device is simple in structure and convenient to use.
Description
Technical field
The utility model relates to the manufacturing equipment of crane girder, particularly the depressed deformation prosthetic appliance of girder cover plate and web.
Background technology
Girder is topmost part in the crane, is generally box-structure, comprises the web of upper and lower cover plates, both sides and inner gusset etc., and the flatness of cover plate, web is one of the parameter that must control in the girder manufacture process.And wave transformation occurs owing to the internal weld seams complex distribution in girder easily in the time of cover plate, web use thin plate, and therefore preventing and correcting the wave transformation of cover plate web just becomes the necessary operation of considering in the crane manufacturing.Existing restorative procedure to the depression in the wave transformation is solid at the center of depression technique lath point, then utilizes driving lifting girder with the depressed deformation equating of girder cover plate, web.Utilize driving to carry out the depressed deformation reparation following deficiency is arranged: the first, operating efficiency is low; The second, utilize vehicling operation can cause driving to take for a long time, affect other operations, the 3rd, there is larger potential safety hazard.
The utility model content
The purpose of this utility model provides a kind of depression repairing device easy to use.
The technical scheme that the utility model adopts is: depression repairing device comprises that to be hinged on drive rod, upper end on the described bearing hinged with drive rod and the lower end is used for the pull bar that is fixedly connected with the lower recess of workpiece depression and drive described drive rod upwards spurs described pull bar around described bearing rotation drive unit be used to being supported near the workpiece depression lip-deep bearing, an end; Described bearing, drive rod, pull bar and drive unit form the laborsaving lever take bearing as fulcrum, take drive rod as lever jointly.
Depression repairing device according to above structure formation, bearing, drive rod, pull bar and drive unit formed one take bearing as fulcrum laborsaving lever and drive drive rod by drive unit and rotate along bearing, thereby can upwards promote the pull bar that is connected on the drive rod, because pull bar is connected to the lower recess of depression, thereby therefore can under drive rod drives, recessed being pulled upwardly be repaired depression.Compared with prior art, this apparatus structure is simple, and is easy to use.
Described drive unit comprises that the top has externally threaded leading screw, rotates the bearing block of assembling with described leading screw bottom by thrust bearing and is used for being supported on the surface of the work and top is rotated hinged base with bearing block along the axis parallel with the pivot center of drive rod, and described leading screw is provided with the handle that rotates be used to driving described leading screw; Described drive rod is provided with the screwed hole adaptive with described external screw thread, and described drive rod is assemblied in the described screwed hole by external thread bolt connection.Adopt to rotate and to be assemblied on the bearing block and to be provided with externally threaded leading screw, can under the drive of handle with described drive rod on the adaptive rotation of screwed hole, and in the rotation of leading screw, drive drive rod and upwards rotate raising rod around described bearing.
Described external screw thread is trapezoidal thread.Trapezoidal thread root of the tooth intensity is high, and centering is good, and is not easy to wear, and internal and external threads is adjacent to the conical surface and is difficult for looseningly, can adapt to heavier load.
Description of drawings
Fig. 1: the structural representation of the utility model depression repairing device.
The name of each Reference numeral is called among the figure: 1 girder, 2 upper cover plates, 3 large gussets, 4 small gussets, 5 pull bars, 6 drive rods, 7 bearing bearing pins, 8 bearings, 9 bases, 10 base bearing pins, 11 bearing blocks, 12 thrust ball bearings, 13 handles, 14 leading screws.
The specific embodiment
An embodiment of the utility model depression repairing device as shown in Figure 1, comprise be used to being supported near the workpiece depression lip-deep bearing 8, an end and be hinged on drive rod 6 on the bearing 8 by bearing bearing pin 7, and along the pull bar 5 and the drive unit that are hinged on successively away from the direction of bearing 8 on the drive rod 6, pull bar 5 lower ends can be fixedly connected on the lower recess of workpiece depression along the above-below direction of workpiece concave deformation by welding, jointly form laborsaving lever take bearing as fulcrum with upper bracket 8, drive rod 6, pull bar 5 and drive unit.Described drive unit comprises be used to being supported near lip-deep base 9, the top of workpiece depression having trapezoidal externally threaded leading screw 14 and pass through the bearing block 11 that thrust ball bearing 12 rotates assembling with described leading screw bottom, described bearing block 11 rotates by base bearing pin 10 and is assemblied in described base 9 tops, thereby bearing block can be rotated along the axis parallel with the pivot center of drive rod.Be slotted hole with the adaptive pin-and-hole of base bearing pin 10 on the base 9, can be bearing block and reserve suitable mobile space.The middle part of described leading screw 14 is provided with circular hole, is inserted with the handle 13 that rotates in described bearing be used to driving described leading screw 14 in the circular hole; Described drive rod 6 is provided with the screwed hole adaptive with described trapezoidal external screw thread, and described drive rod 6 is assemblied in the described screwed hole by trapezoidal external thread bolt connection.
Occupation mode: the workpiece in the present embodiment is girder 1 as shown in Figure 1, the large gusset 3 and the small gusset 4 that comprise upper cover plate 2, be connected with upper cover plate 2, during use depression repairing device is placed into the recess of upper cover plate 2, bearing 8, base 9 are pressed in the position of large gusset or small gusset as far as possible, to avoid causing new distortion in the repair process.The adjusting device position makes pull bar 5 lower ends corresponding with the center of depression, and the position by handle 13 rotational lead screws 14 adjustment drive rods 6 makes pull bar be positioned at the minimum point of depression.Then pull bar 5 is welded in the minimum point of depression, in order to guarantee the security of operation, preferably adopts full weld during welding.By handle 13 rotational lead screws 14 drive rod 6 is risen around bearing 8 rotations after welding is finished, utilize the principle of laborsaving lever to drive pull bar 5 risings, after the lifting height of depression reached requirement, the handle that stops the rotation was by the depression of flame straightening elimination beam box; Utilize at last the sanding machine mill to drive pull bar 5 and polish flat with the solder joint of upper cover plate 2 and with solder joint, finish depression reparation.This apparatus structure is simple, and is easy to use, can repair at an easy rate for the following depression of degree of depth 25mm on the cover plate of thick 6 ~ 10mm especially.
In the above-described embodiments, drive unit has adopted the leading screw whirligig, in other embodiment of the present utility model, drive unit also can adopt other form, a hinged hydraulic cylinder between base 9 and drive rod 6 for example, hydraulic cylinder connects a manual pump, and perhaps a direct hinged jack is realized the lifting of drive rod 6 by operation manual pump or jack.
Claims (3)
1. depression repairing device is characterized in that: comprise that to be hinged on drive rod, upper end on the described bearing hinged with drive rod and the lower end is used for the pull bar that is fixedly connected with the lower recess of workpiece depression and drive described drive rod upwards spurs described pull bar around described bearing rotation drive unit be used to being supported near the workpiece depression lip-deep bearing, an end; Described bearing, drive rod, pull bar and drive unit form the laborsaving lever take bearing as fulcrum, take drive rod as lever jointly.
2. depression repairing device according to claim 1, it is characterized in that: described drive unit comprises that the top has externally threaded leading screw, rotates the bearing block of assembling with described leading screw bottom by thrust bearing and is used for being supported on the surface of the work and top is rotated hinged base with bearing block along the axis parallel with the pivot center of drive rod, and described leading screw is provided with the handle that rotates be used to driving described leading screw; Described drive rod is provided with the screwed hole adaptive with described external screw thread, and described drive rod is assemblied in the described screwed hole by external thread bolt connection.
3. depression repairing device according to claim 2, it is characterized in that: described external screw thread is trapezoidal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497118 CN202779283U (en) | 2012-09-26 | 2012-09-26 | Pit repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220497118 CN202779283U (en) | 2012-09-26 | 2012-09-26 | Pit repairing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779283U true CN202779283U (en) | 2013-03-13 |
Family
ID=47806625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220497118 Expired - Fee Related CN202779283U (en) | 2012-09-26 | 2012-09-26 | Pit repairing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779283U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438465A (en) * | 2014-11-29 | 2015-03-25 | 郑运婷 | Using method of metal plate surface restorer |
| CN106881558A (en) * | 2017-03-06 | 2017-06-23 | 上海钜轩汽车用品有限公司 | A kind of renovation technique of aluminium vehicle body |
| CN108500085A (en) * | 2018-03-31 | 2018-09-07 | 陆林娣 | A kind of plank depression repairing device and its restorative procedure |
| CN108580586A (en) * | 2018-06-19 | 2018-09-28 | 南京工业职业技术学院 | Hydraulic dual-purpose automobile dent obturator |
| CN110614292A (en) * | 2019-09-23 | 2019-12-27 | 北京圣手汽车装饰服务有限公司 | Technological method for repairing automobile concave |
-
2012
- 2012-09-26 CN CN 201220497118 patent/CN202779283U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438465A (en) * | 2014-11-29 | 2015-03-25 | 郑运婷 | Using method of metal plate surface restorer |
| CN104438465B (en) * | 2014-11-29 | 2016-05-11 | 郑运婷 | The using method of metal plate obturator |
| CN106881558A (en) * | 2017-03-06 | 2017-06-23 | 上海钜轩汽车用品有限公司 | A kind of renovation technique of aluminium vehicle body |
| CN108500085A (en) * | 2018-03-31 | 2018-09-07 | 陆林娣 | A kind of plank depression repairing device and its restorative procedure |
| CN108580586A (en) * | 2018-06-19 | 2018-09-28 | 南京工业职业技术学院 | Hydraulic dual-purpose automobile dent obturator |
| CN110614292A (en) * | 2019-09-23 | 2019-12-27 | 北京圣手汽车装饰服务有限公司 | Technological method for repairing automobile concave |
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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: 20130313 Termination date: 20160926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |