CN107200282B - Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method - Google Patents
Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method Download PDFInfo
- Publication number
- CN107200282B CN107200282B CN201710597636.2A CN201710597636A CN107200282B CN 107200282 B CN107200282 B CN 107200282B CN 201710597636 A CN201710597636 A CN 201710597636A CN 107200282 B CN107200282 B CN 107200282B
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- China
- Prior art keywords
- mandrel
- fixing
- tripod
- disassembled
- cold
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
- B66D1/22—Planetary or differential gearings, i.e. with planet gears having movable axes of rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
Abstract
The invention belongs to the technical field of mechanical equipment, and particularly relates to a mandrel fixing device and a mandrel cold disassembling method for cold disassembling of a scraper winch. The invention changes the fixed mode of the pressing plate, can effectively prevent the mandrel from rotating, is easy to disassemble, eliminates the damage to the mandrel and the bearing caused by the thermal disassembly, prolongs the service life of the sun wheel, the planet wheel and the bearing in the scraper winch, shortens the maintenance time and reduces the consumption of materials and spare parts; in addition, when the fixing device is used, the fixing bolt is only required to be screwed off during disassembly, and the electric welding is not used for disassembly.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a mandrel fixing device for cold disassembly of a scraper winch and a mandrel cold disassembly method.
Background
The scraper winch is an ore transporting tool commonly used in underground mines. The main and auxiliary rolls of the scraper winch are composed of a tripod, a sun gear, a planetary gear, a mandrel, a gear ring, a winding drum, bearings at each part and the like, and the tripod is connected with the winding drum by a flat key. The tripod mandrel in the main reel and the auxiliary reel is loosened and broken frequently in the use process of the scraper winch, so that the sun gear, the planetary gear and the bearing are damaged.
The current tripod mandrel fixing mode is to fix the mandrel by using a pressing plate at one end of the mandrel, namely, firstly flattening the circular arc at the fixed end of the mandrel, fixing the pressing plate by using two bolts, tightly leaning the long edge at the lower part of the pressing plate on the plane of the flattened part of the mandrel, and fixing the mandrel. The defects of the fixing mode are that: in the process of raking and transporting ore, as the granularity of the ore is large, the impact change is large, the load change is also large, although the axial movement of the mandrel is not damaged, the pressing plate and the mandrel are worn away for a long time to gradually cause the rotation of the mandrel, once the mandrel rotates, the shaft and the hole are simultaneously worn, the aperture is increased, the planet wheel generates large radial runout, and the mandrel and the tripod are broken when serious; due to friction heating, the bearing can be plastically deformed, gears are pitted, glued, gear teeth are broken off, and a raking winch is locked, so that a motor reduction gearbox and parts are damaged; and also generates great vibration and noise.
The bearing of the triangular bracket and each part of the gear is damaged when the mandrel breaks, so that the scraper winch needs to be disassembled and overhauled. Because the existing mandrel fixing mode is unreasonable, when the mandrel is disassembled, only a thermal disassembling method can be adopted, namely, a gas cutting mode is adopted, the planetary gear and the bearing are firstly cut off, and then the mandrel is cut off by gas cutting. The defects of the disassembly mode are as follows: because the iron slag is splashed after gas cutting, other two planetary gears and sun gears in the tripod cannot work, one planetary gear or the mandrel is damaged, and the other three planetary gears or the mandrel are required to be removed by gas cutting.
Disclosure of Invention
The invention aims to provide a mandrel fixing device and a mandrel cold disassembling method for cold disassembling of a scraper winch, which effectively prevent the mandrel from rotating by changing the fixing mode of the mandrel, thereby realizing cold disassembling of the scraper winch when faults occur, eliminating damage to the mandrel and a bearing caused by hot disassembling, prolonging the service lives of a sun gear, a planetary gear and the bearing in the scraper winch, shortening the maintenance time and reducing the consumption of materials and spare parts.
The aim of the invention is realized by the following technical scheme:
the invention relates to a cold-disassembled mandrel fixing device of a scraper winch, which comprises a tripod and two fixing bolts arranged at the upper part of the tripod, and is characterized in that a mandrel fixing pin is arranged on one fixing bolt, a fixed steel wire is connected between the two fixing bolts, the mandrel fixing pin comprises a fixed end and a cylindrical pin, the fixed end is sleeved on the one fixing bolt, and the cylindrical pin is inserted into an opening at the end head of a mandrel.
The fixing end of the mandrel fixing pin is a square fixing end, a central hole matched with the fixing bolt is formed in the center of the square fixing end, and the fixing bolt is arranged in the central hole.
A method for cold disassembly of a spindle by means of a cold disassembly spindle fixture of a rake winch, comprising the steps of:
step 1, tripod mandrel fixing adopts a mandrel fixing pin to be matched with a drill hole at the end part of a mandrel;
(1) Machining and manufacturing a mandrel fixing pin which is formed by a fixing end and a cylindrical pin into a whole; the fixed end is provided with a central hole, and is used for penetrating through the fixed bolt to fix the mandrel, and the diameter of the central hole is determined according to the model of the fixed bolt;
(2) Drilling holes in fixed positions at two ends of the mandrel, wherein the diameter of the holes is slightly larger than that of the cylindrical pins, so that the Kong Yu cylindrical pins are tightly matched, and the cylindrical pins can pass through the holes;
(3) When the mandrel is fixed, the cylindrical pin is inserted into a drilling hole at the fixed end of the mandrel, the cylindrical pin is fixed on the triangular bracket by using the fixing bolt, and after the fixing, the two fixing bolts are fixed by using the thin fixing steel wire, so that the fixing bolts are prevented from rotating and loosening;
(4) When the fixing bolt is detached, only the fixing bolt is needed to be screwed off, and the electric welding is not needed to be used for detachment;
step 2, separating the triangular bracket from the winding drum by utilizing a special bracket;
after the outer end cover, the large cover, the outer cover and the gear ring of the scraper winch are normally disassembled, the tripod and the winding drum are integrally disassembled and removed; the tripod which is disassembled and removed and the whole of the winding drum are placed on a special bracket, and the special bracket supports the supporting part of the winding drum, so that the plane of the winding drum is pressed on the supporting part of the special bracket; one side of the tripod is kept downwards and is placed in the middle of the special bracket, so that the tripod is not contacted with the special bracket; at this time, one end of a special jack for the tripod is inserted into the shaft of the tripod, the tripod is well supported and lightly hammered, and the tripod is ejected out of the shaft of the winding drum;
step 3, disassembling the tripod mandrel;
after the tripod is separated from the winding drum, a fixing bolt and a mandrel fixing pin for fixing a mandrel on the tripod are disassembled, then the mandrel to be disassembled is aligned by utilizing a mandrel special jack, and the mandrel is disassembled from the tripod by utilizing a hammer light hammer mandrel special jack;
and 4, after the mandrel is disassembled, the planetary gear and the sun gear are disassembled.
The invention has the advantages that:
the mandrel fixing device and the mandrel cold disassembling method for the scraper winch cold disassembly change the pressing plate fixing mode, can effectively prevent the mandrel from rotating, are easy to disassemble, eliminate damage to the mandrel and the bearing caused by hot disassembly, prolong the service lives of the sun gear, the planetary gear and the bearing in the scraper winch, shorten the maintenance time and reduce the consumption of materials and spare parts; in addition, when the fixing device is used, the fixing bolt is only required to be screwed off during disassembly, and the electric welding is not used for disassembly.
Drawings
FIG. 1 is a schematic view of the spindle fixing apparatus of the present invention.
Fig. 2 is a left side view of fig. 1 in accordance with the present invention.
Fig. 3 is a schematic structural view of the mandrel fixing pin according to the present invention.
Fig. 4 is a diagram showing the cooperation of the gear ring, the reel and the tripod of the rake winch according to the present invention.
Fig. 5 is a cross-sectional view of fig. 4 in accordance with the present invention.
Fig. 6 is a schematic structural view of the special bracket of the present invention.
Fig. 7 is a partial view of a support roll for a special stand of the present invention.
Fig. 8 is a left side view of fig. 7 in accordance with the present invention.
Fig. 9 is a schematic view of a tripod disassembly tool for tripod special purpose according to the present invention.
FIG. 10 is a schematic view of the spindle removed with the spindle-specific ejector of the present invention.
Detailed Description
Specific embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in fig. 1-10, the cold-dismantling mandrel fixing device of the scraper winch of the invention comprises a tripod 1, two fixing bolts 3 arranged at the upper part of the tripod 1, and is characterized in that a mandrel fixing pin 4 is arranged on one fixing bolt 3, a fixing steel wire 5 is connected between the two fixing bolts 3, the mandrel fixing pin 4 comprises a fixing end 4-1 and a cylindrical pin 4-2, the fixing end 4-1 is sheathed on the fixing bolt 3, and the cylindrical pin 4-2 is inserted at an end opening of the mandrel 2.
The fixing end 4-1 of the mandrel fixing pin 4 is a square fixing end, a central hole matched with the fixing bolt 3 is formed in the center of the square fixing end, and the fixing bolt 3 is arranged in the central hole.
A method for cold disassembly of a spindle by means of a cold disassembly spindle fixture of a rake winch, comprising the steps of:
step 1, as shown in figures 1-3, tripod mandrel fixing adopts a mandrel fixing pin 4 to be matched with the end drilling of a mandrel 2;
(1) Machining and manufacturing a mandrel fixing pin 4 which is formed by a fixing end 4-1 and a cylindrical pin 4-2 into a whole; the fixed end 4-1 is provided with a central hole for fixing the mandrel through the fixed bolt 3, and the diameter of the central hole is determined according to the model of the fixed bolt 3;
(2) Drilling holes in fixed positions at two ends of the mandrel 2, wherein the diameter of each hole is slightly larger than that of the cylindrical pin 4-2, so that the holes are tightly matched with the cylindrical pins 4-2, and the cylindrical pins 4-2 can pass through the holes;
(3) When the mandrel 2 is fixed, the cylindrical pin 4-2 is inserted into a drilling hole of the mandrel 2, the cylindrical pin 4-2 is fixed on the tripod 1 by the fixing bolt 3, and after the fixing, the two fixing bolts 3 are fixed by the thin fixing steel wire 5, so that the fixing bolts 3 are prevented from rotating and loosening;
(4) When the fixing bolt 3 is detached, the fixing bolt is only required to be screwed off, and the electric welding is not used for detachment;
step 2, separating the triangular bracket from the winding drum by utilizing a special bracket;
as shown in fig. 4 and 5, after the outer end cover, the big cover and the outer cover of the scraper winch are normally disassembled, the gear ring 9, the winding drum 6 and the tripod 1 are matched; fig. 4 and 5 are the mating diagrams of the gear ring 9, the reel 6 and the tripod 1 of the scraper winch, and are also the working principle diagrams of the scraper winch. The working principle is as follows: when the gear ring 9 is held still, the planetary gear 8 rotates under the drive of the sun gear 7 to drive the tripod 1 to rotate, so that the winding drum 6 rotates; when the gear ring 9 is not held, the planetary gear 8 rotates under the drive of the sun gear 7, the gear ring 9 is driven to rotate, and the tripod 1 does not rotate, so the winding drum 6 does not rotate.
As shown in fig. 4-9, after the outer end cover, the large cover, the outer cover and the gear ring 9 of the scraper winch are normally disassembled, the tripod 1 and the winding drum 6 are integrally disassembled and removed; the tripod 1 which is detached and removed and the whole of the winding drum 6 are placed on a special bracket 10, and the special bracket 10 supports a supporting part 11 of the winding drum 6, so that the plane of the winding drum 6 is pressed on the special bracket 10; one side of the tripod 1 is kept downwards and is placed in the middle of the special bracket 10, so that the tripod 1 is not contacted with the special bracket 10; at this time, one end of a tripod special jack 13 is inserted into the shaft of the tripod 1, and is well supported, and the tripod 1 is ejected out of the shaft of the winding drum 6 by a hammer 12;
step 3, disassembling the tripod mandrel;
as shown in fig. 10, after the tripod 1 is separated from the reel 6, the fixing bolt 3 and the mandrel fixing pin 4 for fixing the mandrel 2 on the tripod 1 are removed, and then the mandrel 2 is removed from the tripod 1 by aligning the mandrel 2 to be removed with a mandrel-dedicated jack 14 and lightly hammering the mandrel-dedicated jack 14 with a hammer 12;
after the spindle 1 is detached in step 4, the planetary gears 8 and the sun gear 7 are detached again.
The mandrel fixing device and the mandrel cold disassembling method for the cold disassembly of the scraper winch change the fixing mode of the pressing plate, can effectively prevent the mandrel 2 from rotating, are easy to disassemble, eliminate the damage to the mandrel 2 and the bearing caused by the hot disassembly, prolong the service lives of the sun gear 7, the planetary gear 8 and the bearing in the scraper winch, shorten the maintenance time and reduce the consumption of materials and spare parts; in addition, when the fixing device is used, the fixing bolt 3 is only required to be screwed off during disassembly, and the electric welding is not used for disassembly.
Claims (1)
1. A cold disassembling method for the mandrel of mandrel fixer by cold disassembling of electric harrow winch includes such steps as providing a triangular frame, two fixing bolts on the upper part of said triangular frame, arranging a mandrel fixing pin on one of said fixing bolts, connecting a fixing steel wire between said two fixing bolts, sleeving said fixing end on said one fixing bolt, inserting said cylindrical pin in the hole of end of mandrel,
the fixed end of the mandrel fixing pin is a square fixed end, the center of the square fixed end is provided with a central hole matched with the fixing bolt, the fixing bolt is arranged in the central hole,
characterized in that the method comprises the following steps:
step 1, tripod mandrel fixing adopts a mandrel fixing pin to be matched with a drill hole at the end part of a mandrel;
(1) Machining and manufacturing a mandrel fixing pin which is formed by a fixing end and a cylindrical pin into a whole; the fixed end is provided with a central hole, and is used for penetrating through the fixed bolt to fix the mandrel, and the diameter of the central hole is determined according to the model of the fixed bolt;
(2) Drilling holes in the fixed parts at the two ends of the mandrel, wherein the diameter of the holes is slightly larger than that of the cylindrical pins, so that the holes are tightly matched with the cylindrical pins, and the cylindrical pins can pass through the holes;
(3) When the mandrel is fixed, the cylindrical pin is inserted into the hole at the fixed end of the mandrel, the cylindrical pin is fixed on the triangular bracket by the fixing bolt, and after the fixing, the two fixing bolts are fixed by the thin fixing steel wire, so that the fixing bolts are prevented from rotating and loosening;
(4) When the fixing bolt is detached, only the fixing bolt is needed to be screwed off, and the electric welding is not needed to be used for detachment;
step 2, separating the triangular bracket from the winding drum by utilizing a special bracket;
after the outer end cover, the large cover, the outer cover and the gear ring of the scraper winch are normally disassembled, the tripod and the winding drum are integrally disassembled and removed; the tripod which is disassembled and removed and the whole of the winding drum are placed on a special bracket, and the special bracket supports the supporting part of the winding drum, so that the plane of the winding drum is pressed on the supporting part of the special bracket; one side of the tripod is kept downwards and is placed in the middle of the special bracket, so that the tripod is not contacted with the special bracket; at this time, one end of a special jack for the tripod is inserted into the shaft of the tripod, the tripod is well supported and lightly hammered, and the tripod is ejected out of the shaft of the winding drum;
step 3, disassembling the tripod mandrel;
after the tripod is separated from the winding drum, a fixing bolt and a mandrel fixing pin for fixing a mandrel on the tripod are disassembled, then the mandrel to be disassembled is aligned by utilizing a mandrel special jack, and the mandrel is disassembled from the tripod by utilizing a hammer light hammer mandrel special jack;
and 4, after the mandrel is disassembled, the planetary gear and the sun gear are disassembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597636.2A CN107200282B (en) | 2017-07-21 | 2017-07-21 | Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597636.2A CN107200282B (en) | 2017-07-21 | 2017-07-21 | Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107200282A CN107200282A (en) | 2017-09-26 |
| CN107200282B true CN107200282B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597636.2A Active CN107200282B (en) | 2017-07-21 | 2017-07-21 | Mandrel fixing device for cold disassembly of scraper winch and mandrel cold disassembly method |
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| Country | Link |
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| CN (1) | CN107200282B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191405597A (en) * | 1914-03-05 | 1914-10-01 | Eustace Ernest Wigzell | An Improved Winch for Sounding Machines for Navigational Purposes. |
| CN102381609A (en) * | 2010-08-26 | 2012-03-21 | 东芝电梯株式会社 | Elevator winch mounting method |
| CN205744781U (en) * | 2016-01-31 | 2016-11-30 | 特雷克斯（常州）机械有限公司 | A kind of end fixing device of bearing pin |
| CN206191048U (en) * | 2016-11-24 | 2017-05-24 | 吴忠中创自控阀有限公司 | Boiler subtracts warm water governing valve |
| CN207267794U (en) * | 2017-07-21 | 2018-04-24 | 鞍钢集团矿业有限公司 | Fixer for mandrel for the cold dismounting of scraper winch |
-
2017
- 2017-07-21 CN CN201710597636.2A patent/CN107200282B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191405597A (en) * | 1914-03-05 | 1914-10-01 | Eustace Ernest Wigzell | An Improved Winch for Sounding Machines for Navigational Purposes. |
| CN102381609A (en) * | 2010-08-26 | 2012-03-21 | 东芝电梯株式会社 | Elevator winch mounting method |
| CN205744781U (en) * | 2016-01-31 | 2016-11-30 | 特雷克斯（常州）机械有限公司 | A kind of end fixing device of bearing pin |
| CN206191048U (en) * | 2016-11-24 | 2017-05-24 | 吴忠中创自控阀有限公司 | Boiler subtracts warm water governing valve |
| CN207267794U (en) * | 2017-07-21 | 2018-04-24 | 鞍钢集团矿业有限公司 | Fixer for mandrel for the cold dismounting of scraper winch |
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| Publication number | Publication date |
|---|---|
| CN107200282A (en) | 2017-09-26 |
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