CN110921557A - Special overhauling tool for mining automobile differential and using method - Google Patents
Special overhauling tool for mining automobile differential and using method Download PDFInfo
- Publication number
- CN110921557A CN110921557A CN201911334689.0A CN201911334689A CN110921557A CN 110921557 A CN110921557 A CN 110921557A CN 201911334689 A CN201911334689 A CN 201911334689A CN 110921557 A CN110921557 A CN 110921557A
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- Prior art keywords
- differential
- lifting
- annular tray
- jackscrew
- lifting trolley
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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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a special maintenance tool for a mining automobile differential and a using method thereof, wherein the maintenance tool comprises a lifting trolley, and is characterized in that: the lifting trolley also comprises a supporting seat and a fastening mechanism which are fixedly connected on the table-board of the lifting trolley; a bearing seat is arranged at the upper end of the supporting seat; the fastening mechanism comprises an annular tray, two short shafts symmetrically and fixedly connected to two ends of the annular tray, a rocker arm vertically and fixedly connected to the end parts of the short shafts, a fixed disc, a fixed pin, a jackscrew I and a jackscrew II; the fastening mechanism is arranged in a bearing seat at the upper end of the supporting seat through a short shaft of the fastening mechanism; in the disassembling and overhauling steps, the differential is fixed through a jackscrew I and a jackscrew II; then the differential is moved out of the mining automobile for maintenance through the lifting trolley, and the steps of mounting the differential are opposite; the invention has the advantages that: 1) the special maintenance tool is provided for replacing the hand chain hoist to be bundled and hoisted, so that time and labor are saved, and the working efficiency is improved; 2) the differential mechanism is simple and convenient to operate, and can effectively prevent the accidents of part damage and extruded injury of maintenance personnel caused by collision and falling in the processes of disassembling and assembling the differential mechanism.
Description
Technical Field
The invention belongs to the technical field of maintenance of large mining and transportation automobiles, and particularly relates to a special maintenance tool for a mining automobile differential and a using method thereof.
Background
The mining production automobile is widely applied to the large-scale mining production transportation process, in order to ensure safe production, the mining production automobile needs regular maintenance, particularly, a differential mechanism of the mining production automobile needs regular decomposition, maintenance and replacement of parts, and the differential mechanism is structurally shown in fig. 1. In the process of repairing and replacing parts, the differential mechanism is narrow in position and space, so that the following problems are caused in the decomposition process:
1) a hoisting point needs to be welded at the bottom of the vehicle, and the chain block is directly used for binding and hoisting, so that the chain block is easy to slide down and damage people, and personal safety accidents are caused;
2) because the lifting point is not in the center, after the differential fixing bolt is removed, the differential fixing bolt needs to be pulled out by a crowbar, and the differential fixing bolt is often overturned to cause collision, so that the differential gear and other parts are damaged;
3) the difficulty in disassembling, overhauling and maintaining the differential mechanism after the differential mechanism is moved to the lower part outside the vehicle is high, and because the differential mechanism is difficult to move, only a dragging method can be used, and internal parts of the differential mechanism are easy to damage;
4) the maintenance on the vehicle increases the labor intensity and difficulty, and easily damages the maintainers.
Therefore, the problem of difficulty in differential maintenance is very important to solve, and the research and design of a special maintenance tool for the mining automobile differential is very necessary and has practical significance.
Disclosure of Invention
The invention aims to provide a special overhauling tool for a mining automobile differential and a using method thereof, aiming at solving the problems in overhauling of the mining automobile differential, so as to prevent the differential from colliding and damaging parts, reduce the cost, lighten the labor intensity of workers, improve the working efficiency and ensure the personal safety.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a special overhauling tool for a mining automobile differential, which comprises a lifting trolley and is characterized in that: the lifting trolley also comprises a supporting seat and a fastening mechanism which are fixedly connected on the table-board of the lifting trolley;
the supporting seat comprises a flat plate fixedly connected to the table board of the lifting trolley and two supporting plates vertically fixedly connected to two ends of the flat plate, and bearing seats are mounted at the upper ends of the two supporting plates;
the fastening mechanism comprises an annular tray, two short shafts symmetrically and fixedly connected to two ends of the annular tray, two rocker arms with handles vertically and fixedly connected to the end parts of the two short shafts, two fixing discs, a fixing pin, a jackscrew I and a jackscrew II;
the two short shafts are correspondingly arranged in the bearing block, the two fixed disks are concentrically fixed on the two short shafts and positioned between the support plate and the rocker arm, pin holes I are concentrically and uniformly distributed on the fixed disks, pin holes II are uniformly distributed on the support plate at positions corresponding to the fixed disks, and the fixed pins penetrate through the pin holes I and the pin holes II to pin-joint and position the fixed disks and the support plate; the annular tray is provided with four through holes uniformly distributed along the circumferential direction, the jackscrew I is matched with the through holes, the annular tray is provided with two symmetrical inward jackscrew frames along the radial direction, and the jackscrew II is matched with the jackscrew frames.
The lifting trolley comprises a scissor type hydraulic lifting mechanism, a universal wheel with a locking device, a bottom plate and a bedplate; universal wheels are arranged at four corners of the bottom surface of the bottom plate, a handrail is arranged at one end of the bottom plate, and the scissor type hydraulic lifting mechanism is positioned between the bottom plate and the bedplate;
the scissor type hydraulic lifting mechanism comprises two connecting rod lifting mechanisms and a hydraulic oil cylinder; the two-connecting-rod lifting mechanism comprises a connecting rotating shaft and two lifting connecting rods, the two lifting connecting rods are hinged with each other at the central position through the connecting rotating shaft, the upper ends of the two lifting connecting rods are hinged with the two ends of the lower surface of the bedplate, the lower ends of the two lifting connecting rods are hinged with the two ends of the upper surface of the base plate, the hydraulic oil cylinder is fixed at the central position of the upper surface of the base plate, and a telescopic rod of the hydraulic oil cylinder is connected with;
the two connecting rod lifting mechanisms are symmetrically arranged at the front side and the rear side between the bottom plate and the table board.
The invention discloses a using method of a special overhauling tool for a mining automobile differential, which is characterized by comprising a differential disassembling method and a differential installing method, wherein the differential disassembling method comprises the following steps:
s1, removing bolts fixedly connected with the differential shell flange, the horizontal shaft shell flange and the horizontal shaft shell flange, and removing the horizontal shaft shell;
s2, enabling the lifting trolley to be close to the outer side of the differential, lifting the lifting trolley, shaking a handle rocker arm, adjusting the annular tray to be in a vertical position, aligning and attaching the annular tray to a differential shell flange connected with a cross shaft shell flange, and then locking a universal wheel of the lifting trolley;
s3, fastening two radial jackscrews II of the annular tray, and fixing the differential on the annular tray in the radial direction;
s4, penetrating the four jackscrews I through the four through holes I on the annular tray and through the jackscrew I holes of the four differentials with internal threads, screwing the jackscrews I into and jacking the jackscrews I on a flange plane of a transverse shaft shell opposite to the differentials, ejecting the differentials along with the annular tray, and simultaneously fixing the differentials on the annular tray along the axial direction;
s5, adjusting the lifting trolley to a certain height, unlocking a universal wheel of the lifting trolley, and moving the lifting trolley out of the mining truck;
and S6, shaking the handle rocker arm to turn the annular tray, enabling the gear in the differential to face upwards, inserting the fixing pin into the pin hole II in the rocker arm and the pin hole I in the fixing disc, and fixing the position of the annular tray by pin joint to start maintenance operation.
The method for mounting the differential is the reverse of the method for disassembling the differential.
The invention has the advantages that:
1) in the frequent maintenance work of the mining automobile differential, the invention provides a special tool which replaces a chain block to bind and hoist, so that the maintenance work is time-saving and labor-saving, and the work efficiency is improved;
2) the special tool disclosed by the invention is simple to operate and convenient to use, can effectively prevent the differential from colliding, falling off, damaging parts and crushing maintenance personnel in the dismounting and mounting processes, and ensures cost reduction and safe production.
Drawings
FIG. 1 is a schematic view of a dedicated service tool of the present invention;
FIG. 2 is a side view of the present invention.
Fig. 3 is a working schematic diagram of the special maintenance tool of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in figures 1-3, the special overhauling tool for the mining automobile differential comprises a lifting trolley and is characterized in that: the lifting trolley also comprises a supporting seat and a fastening mechanism which are fixedly connected on the table-board of the lifting trolley;
the supporting seat comprises a flat plate 9 fixedly connected on the table-board of the lifting trolley and two supporting plates 10 vertically fixedly connected at two ends of the flat plate 9, and a bearing seat is arranged at the upper end of each of the two supporting plates 10;
the fastening mechanism comprises an annular tray 1, two short shafts 2 symmetrically fixedly connected to two ends of the annular tray 1, two rocker arms 3 with handles vertically and fixedly connected to the end parts of the two short shafts 2, two fixed discs 12, a fixed pin 11, a jackscrew I and a jackscrew II 14; the two short shafts 2 are correspondingly arranged in the bearing block, the two fixed disks 12 are concentrically fixed on the two short shafts 2 and positioned between the support plate 10 and the rocker arm 3, pin holes I are concentrically and uniformly distributed on the fixed disks 12, pin holes II are uniformly distributed on the support plate 10 at positions corresponding to the pin holes I, and the fixed disks 12 are in pin joint positioning with the support plate 10 through the fixed pins 11 passing through the pin holes I and the pin holes II; the annular tray 1 on along the circumference equipartition open and to have four through-holes 13, jackscrew I match with through-hole 13 annular tray 1 on radially be equipped with two inside jackscrew framves of symmetry 15, jackscrew II 14 with jackscrew frame 15 match and set up.
The lifting trolley comprises a scissor type hydraulic lifting mechanism, a universal wheel 7 with a locking device, a bottom plate 5 and a bedplate 4; universal wheels 7 are arranged at four corners of the bottom surface of the bottom plate 5, a handrail 8 is arranged at one end of the bottom plate 5, and the scissor type hydraulic lifting mechanism is positioned between the bottom plate 5 and the bedplate 4;
the scissor type hydraulic lifting mechanism comprises two connecting rod lifting mechanisms and a hydraulic oil cylinder 6; the two-connecting-rod lifting mechanism comprises a connecting rotating shaft and two lifting connecting rods, the two lifting connecting rods are hinged with each other at the central position through the connecting rotating shaft, the upper ends of the two lifting connecting rods are hinged with two ends of the lower surface of the bedplate 4, the lower ends of the two lifting connecting rods are hinged with two ends of the upper surface of the base plate 5, the hydraulic oil cylinder 6 is fixed at the central position of the upper surface of the base plate 5, and a telescopic rod of the hydraulic oil cylinder 6 is connected with the connecting;
the two connecting rod lifting mechanisms are arranged at the front side and the rear side between the bottom plate 5 and the bedplate 4 symmetrically.
The invention discloses a using method of a special overhauling tool for a mining automobile differential, which is characterized by comprising a differential disassembling method and a differential installing method, wherein the differential disassembling method comprises the following steps:
s1, removing bolts fixedly connected with the differential shell flange, the horizontal shaft shell flange and the horizontal shaft shell flange, and removing the horizontal shaft shell;
s2, enabling the lifting trolley to approach the outer side of the differential, lifting the lifting trolley, shaking the handle rocker arm 3, adjusting the annular tray 1 to a vertical position, aligning and attaching to a differential shell flange connected with a cross shaft shell flange, and then locking a universal wheel 7 of the lifting trolley;
s3, fastening two radial jackscrews II 14 of the annular pallet 1, and fixing the differential on the annular pallet 1 in the radial direction;
s4, penetrating the four jackscrews I through four through holes I13 on the annular tray and through jackscrew I holes of four differentials with internal threads, screwing the jackscrews I into and jacking the jackscrews I on a flange plane of a transverse shaft shell opposite to the differentials, ejecting the differentials along with the annular tray 1, and fixing the differentials on the annular tray 1 along the axial direction;
s5, adjusting the lifting trolley to a certain height, unlocking the universal wheels 7 of the lifting trolley, and moving the lifting trolley out of the mining truck;
s6, the rocker arm 3 of the rocking handle turns over the annular tray 1, the gear in the differential mechanism faces upwards, then the fixing pin 11 penetrates through the pin hole I and the pin hole II to pin and position the fixed disc 12 and the supporting plate 10, namely the position of the annular tray 1 is fixed through the pin, and the maintenance operation is started.
The method for mounting the differential is the reverse of the method for disassembling the differential.
The device replaces chain block to bind and hoist, and on-the-spot result of use is good, and post workman convenient operation is swift safety, has improved work efficiency, has alleviateed worker's intensity of labour, has guaranteed worker's personal safety.
Claims (4)
1. The utility model provides a mining truck differential special use overhauls instrument, includes lift dolly, its characterized in that: the lifting trolley also comprises a supporting seat and a fastening mechanism which are fixedly connected on the table-board of the lifting trolley;
the supporting seat comprises a flat plate fixedly connected to the table board of the lifting trolley and two supporting plates vertically fixedly connected to two ends of the flat plate, and bearing seats are mounted at the upper ends of the two supporting plates;
the fastening mechanism comprises an annular tray, two short shafts symmetrically and fixedly connected to two ends of the annular tray, two rocker arms with handles vertically and fixedly connected to the end parts of the two short shafts, two fixing discs, a fixing pin, a jackscrew I and a jackscrew II;
the two short shafts are correspondingly arranged in the bearing block, the two fixed disks are concentrically fixed on the two short shafts and positioned between the support plate and the rocker arm, pin holes I are concentrically and uniformly distributed on the fixed disks, pin holes II are uniformly distributed on the support plate at positions corresponding to the fixed disks, and the fixed pins penetrate through the pin holes I and the pin holes II to pin-joint and position the fixed disks and the support plate; the annular tray is provided with four through holes uniformly distributed along the circumferential direction, the jackscrew I is matched with the through holes, the annular tray is provided with two symmetrical inward jackscrew frames along the radial direction, and the jackscrew II is matched with the jackscrew frames.
2. The special overhauling tool for the mining automobile differential mechanism according to claim 1, wherein the lifting trolley comprises a scissor type hydraulic lifting mechanism, a universal wheel with a locking device, a bottom plate and a bedplate; universal wheels are arranged at four corners of the bottom surface of the bottom plate, a handrail is arranged at one end of the bottom plate, and the scissor type hydraulic lifting mechanism is positioned between the bottom plate and the bedplate;
the scissor type hydraulic lifting mechanism comprises two connecting rod lifting mechanisms and a hydraulic oil cylinder; the two-connecting-rod lifting mechanism comprises a connecting rotating shaft and two lifting connecting rods, the two lifting connecting rods are hinged with each other at the central position through the connecting rotating shaft, the upper ends of the two lifting connecting rods are hinged with the two ends of the lower surface of the bedplate, the lower ends of the two lifting connecting rods are hinged with the two ends of the upper surface of the base plate, the hydraulic oil cylinder is fixed at the central position of the upper surface of the base plate, and a telescopic rod of the hydraulic oil cylinder is connected with;
the two connecting rod lifting mechanisms are symmetrically arranged at the front side and the rear side between the bottom plate and the table board.
3. The use method of the special overhauling tool for the mining automobile differential is characterized by comprising a differential disassembling method and a differential installing method, wherein the differential disassembling method comprises the following steps:
s1, removing bolts fixedly connected with the differential shell flange, the horizontal shaft shell flange and the horizontal shaft shell flange, and removing the horizontal shaft shell;
s2, enabling the lifting trolley to be close to the outer side of the differential, lifting the lifting trolley, shaking a handle rocker arm, adjusting the annular tray to be in a vertical position, aligning and attaching the annular tray to a differential shell flange connected with a cross shaft shell flange, and then locking a universal wheel of the lifting trolley;
s3, fastening two radial jackscrews II of the annular tray, and fixing the differential on the annular tray in the radial direction;
s4, penetrating the four jackscrews I through the four through holes I on the annular tray and through the jackscrew I holes of the four differentials with internal threads, screwing the jackscrews I into and jacking the jackscrews I on a flange plane of a transverse shaft shell opposite to the differentials, ejecting the differentials along with the annular tray, and simultaneously fixing the differentials on the annular tray along the axial direction;
s5, adjusting the lifting trolley to a certain height, unlocking a universal wheel of the lifting trolley, and moving the lifting trolley out of the mining truck;
and S6, shaking the handle rocker arm to turn the annular tray, enabling the gear in the differential to face upwards, inserting the fixing pin into the pin hole II in the rocker arm and the pin hole I in the fixing disc, and fixing the position of the annular tray by pin joint to start maintenance operation.
4. The use method of the special overhauling tool for the mining automobile differential as claimed in claim 3, is characterized in that the method for mounting the differential is opposite to the method for disassembling the differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334689.0A CN110921557A (en) | 2019-12-23 | 2019-12-23 | Special overhauling tool for mining automobile differential and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911334689.0A CN110921557A (en) | 2019-12-23 | 2019-12-23 | Special overhauling tool for mining automobile differential and using method |
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| Publication Number | Publication Date |
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| CN110921557A true CN110921557A (en) | 2020-03-27 |
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| CN201911334689.0A Pending CN110921557A (en) | 2019-12-23 | 2019-12-23 | Special overhauling tool for mining automobile differential and using method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620204A (en) * | 2021-08-23 | 2021-11-09 | 鞍钢集团矿业有限公司 | Special tool for disassembling and assembling wet disc brake assembly of mining truck and using method |
| CN113753791A (en) * | 2021-09-18 | 2021-12-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
| CN114590342A (en) * | 2022-03-11 | 2022-06-07 | 江苏太平洋精锻科技股份有限公司 | Pre-assembly device of zero-clearance differential transmission assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620204A (en) * | 2021-08-23 | 2021-11-09 | 鞍钢集团矿业有限公司 | Special tool for disassembling and assembling wet disc brake assembly of mining truck and using method |
| CN113753791A (en) * | 2021-09-18 | 2021-12-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
| CN113753791B (en) * | 2021-09-18 | 2023-04-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
| CN114590342A (en) * | 2022-03-11 | 2022-06-07 | 江苏太平洋精锻科技股份有限公司 | Pre-assembly device of zero-clearance differential transmission assembly |
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Application publication date: 20200327 |
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| RJ01 | Rejection of invention patent application after publication |