CN104806717A - Tensioning device for shuttle type mine car driving chain - Google Patents
Tensioning device for shuttle type mine car driving chain Download PDFInfo
- Publication number
- CN104806717A CN104806717A CN201510113343.3A CN201510113343A CN104806717A CN 104806717 A CN104806717 A CN 104806717A CN 201510113343 A CN201510113343 A CN 201510113343A CN 104806717 A CN104806717 A CN 104806717A
- Authority
- CN
- China
- Prior art keywords
- chain
- roller
- shaft sleeve
- adjusting shaft
- fine adjusting
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
- F16H2007/185—Means for guiding or supporting belts, ropes, or chains the guiding surface in contact with the belt, rope or chain having particular shapes, structures or materials
Abstract
The invention discloses a tensioning device for a shuttle type mine car driving chain. The device comprises a lead screw (1), and a nut (2) in match with the lead screw, wherein the nut is fixed on a supporting seat (3); the upper end of the lead screw is used as a fixing end connected with a shuttle type mine car; a reversed U shaped bracket (4) is connected to the lower end of the lead screw; a hinge pin (7) is fixedly arranged on the bracket; a fine adjusting shaft sleeve (8) is arranged on the hinge pin; the longitudinal section of the fine adjusting shaft sleeve are in a shape of a plane ellipse; a roller (5) longer than the chain is movably arranged on the fine adjusting shaft sleeve; oil pouring channels (10) through which lubricating oil can enter a contact surface between the fine adjusting shaft sleeve and the roller are arranged in the hinge pin and the fine adjusting shaft sleeve. According to the device, the fine adjusting shaft sleeve and the roller relatively slide; the device is simple and compact in structure; the service lives of related parts of the existing shuttle type mine car can be increased more than three times; in addition, the problems of wearing, blocking of the chain and jumping of the chain of the original chain wheel tensioning device in the actual operation can be effectively solved.
Description
Technical field
The present invention relates to chain tensioning device, particularly relate to the belt tensioner of shuttle car chain drive-belt.
Background technique
Traditional shuttle car (as shown in Figure 1 and Figure 2), one, chain drive-belt belt tensioner is little with rack side plate gap after chain loaded onto by toothed sprocket wheel, and in shuttle car dress slag transportation process, often have small stone and fall in sprocket tooth, cause chain drive-belt to jump tooth, make with two side wall panels serious friction or block that chain drive-belt weares and teares, chain jamming, jumping chain, transmission hinge wheel main shaft ruptures, and speed reducer damages, and motor burns out, it is two when bearing and car body out of plumb, time on the upper side or on the lower side. 1 ° on the upper side or on the lower side of bearing, and when having arrived this position of sprocket wheel just more than 3 ° on the upper side or on the lower side, such script sprocket faces and inside plank of chain gap seldom just cause sprocket tooth side and choke inside plank of chain, and the inside plank of chain power of being squeezed passes to outer plate, pass to the boss of chain pin again, thus the boss of chain pin and rack side plate inner face are rubbed, then the boss of chain pin is worn, chain board is extruded out, now be extruded away outer plate joint and be in loosening state, driving sprocket wheel is in several circulation, chain can be captured between the carrier bar joint being in loosening state at once, form a deadlock, now main transmission, belt tensioner, speed reducer, that position of motor belongs to weak spot just that place bad, often cause main drive shaft, screw mandrel ruptures, in speed reducer, height drive assembly damages, motor burns out.A lot of producer strengthens modulus on height driving cog in speed reducer, do not solve basic reason, therefore cause shuttle car stopping production overhaul and great economic loss to user, serious client can return goods claim, directly has influence on the image of Products and very big economic loss.
Summary of the invention
The shuttle car chain drive-belt belt tensioner that the present invention is directed to the defect existed in above-mentioned prior art, a kind of long service life is provided, chain is not easy to wear, be not easy to occur chain jamming, jump chain, chain rupture.
The technological scheme that the present invention takes for the above-mentioned Problems existing of solution is: a kind of belt tensioner of shuttle car chain drive-belt, comprise leading screw, the nut coordinated with leading screw, nut is fixed on bearing, the upper end of described leading screw is fixed end, for the connection with shuttle car, the lower end of leading screw is connected with support, described support is for falling " U " shape, support is fixedly installed bearing pin, described bearing pin is provided with fine setting axle sleeve, described fine setting axle sleeve longitudinal section is the ellipse that two ends are plane, fine adjustment shaft puts and is movably set with roller, described roller length is greater than chain length, described bearing pin and fine setting axle sleeve in be provided with can make lubricant oil enter into fine setting axle sleeve and roller surface of contact on oiling passage.
Described fine setting axle sleeve inner ring is motionless, and fine setting axle sleeve external form is oval, and fine setting axle sleeve positive camber and roller inner ring rotary oscillation control by the frictional force between them; When sprocket wheel expanding force is greater than their frictional force, fine setting axle sleeve is then moved thereupon passive adjustment angle by sprocket wheel holder.
Further, described oiling passage is in laterally "T"-shaped.
The present invention adopts in adjusting screw rod and support and realizes chain tensioner in its belt tensioner, and adopt roller originally to adopt sprocket wheel and chain to nibble mutually with the radial rotating of fine setting axle sleeve with horizontally slipping to solve, when chain tilts, sprocket wheel and chain occur easily occurring that stuck and chain easily and the problem collided inside support, by the relative sliding between fine setting axle sleeve and roller, efficiently solve the problem that original sprocket wheel belt tensioner is existing in actual motion.
Beneficial effect of the present invention: 1, described roller is anodontia roller, both can support chains, original sprocket wheel and the mutual stuck phenomenon of chain phase overmask can be avoided again, and the distance of chain and rack side plate increases, tooth roller is had compared to existing technology, swinging of its chain drive-belt can be made on idler wheel surface, effectively to prevent chain drive-belt from occurring wearing and tearing, chain jamming, jumping chain etc.; 2, when bearing and car body run-off the straight, roller can change self gradient according to the gradient of chain drive-belt, thus elimination drives wearing and tearing, chain jamming, jumping chain, the fracture of transmission hinge wheel main shaft, speed reducer damage, motor to burn out; 3, compared with original belt tensioner, its structure is more simply compact, make improve more than 3 times the working life of each associate components of existing shuttle car.
Accompanying drawing explanation
Fig. 1 is the mounting point schematic diagram of the belt tensioner of shuttle car chain drive-belt of the prior art,
Fig. 2 is the enlarged left view of the belt tensioner of the shuttle car chain drive-belt of Fig. 1,
Fig. 3 is the mounting point schematic diagram of the belt tensioner of shuttle car chain drive-belt of the present invention,
Fig. 4 is that the A-A of Fig. 3 analyses and observe structure for amplifying schematic diagram,
Fig. 5 is the belt tensioner using state schematic diagram of shuttle car chain drive-belt of the present invention.
In the drawings, 1, leading screw 2, nut 3, bearing 4, support 5, roller 6, grease nipple 7, bearing pin 8, fine setting axle sleeve 9, chain 10, oiling passage.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, in conjunction with embodiment, the present invention is described in further detail with reference to the accompanying drawings below.
As Fig. 3, Fig. 4, shown in Fig. 5, a kind of shuttle car chain drive-belt belt tensioner, comprise leading screw 1, the nut 2 coordinated with leading screw, nut is fixed on bearing 3, leading screw moves up and down the tensioner degree for regulating chain drive-belt in nut, the upper end of described leading screw is fixed end, for the connection with shuttle car, the lower end of leading screw is connected with support 4, described support is for falling " U " shape, to be fixedly installed between support in the pin shaft hole that bearing pin 7(is connected on the side plate of support and to have screw to fix), described bearing pin is connected to fine adjustment shaft cover 8 with back-up ring (not marking in figure) fixed cover, the ellipse of straightforward plane that to be two ends be in described fine setting axle sleeve longitudinal section is (middle high, two ends are low), described fine adjustment shaft puts to be supported with in roller 5(roller through hole, through-hole aperture and fine setting axle sleeve cross section maximum outside diameter are for being slidably matched, namely roller can fine adjustment shaft cover on radial rotating), described roller length is greater than chain length, and (chain pin boss is apart from the distance of rack side plate, the distance of chain and rack side plate is increased, like this can not the outer plate of worn chain 9 and the boss of chain pin), when chain tilts at the volley, the gradient that roller left and right Automatic Fine Tuning on fine adjustment shaft cover changes self coordinates (namely roller can swing with the inclination of chain on fine adjustment shaft overlaps) with adjustment and chain, one end of described bearing pin is provided with grease nipple 6, described bearing pin and fine setting axle sleeve in be provided with can make lubricant oil enter into fine setting axle sleeve and roller surface of contact on oiling path 10, described passage is in laterally "T"-shaped, oiling passage wherein on bearing pin is in vertical direction connected with the oiling passage on fine adjustment shaft cover, described grease nipple connects described oiling passage.
In use, under normal circumstances, chain and roller are horizontal parallel state, when bearing and car body run-off the straight, bearing pin is motionless with fine setting axle sleeve position, and roller can change self gradient, all the time with chain keeping parallelism state according to the gradient of chain drive-belt under high effect of putting in the middle of fine setting axle sleeve, the wearing and tearing between chain and roller can be reduced like this, and the situation such as the chain jamming that there will not be structure in Fig. 2 to bring, jumping chain.
Above mode of execution is only in order to illustrate technological scheme of the present invention and unrestricted; although with reference to specific embodiment to invention has been detailed description; those of ordinary skill in the art is to be understood that; can modify to technological scheme of the present invention or equivalent replacement; and do not depart from the spirit and scope of technical solution of the present invention, in the middle of its scope all should protected in claim of the present invention.
Claims (2)
1. the belt tensioner of a shuttle car chain drive-belt, comprise leading screw (1), the nut (2) coordinated with leading screw, nut is fixed on bearing (3), the upper end of described leading screw is fixed end, for the connection with shuttle car, it is characterized in that: the lower end of leading screw is connected with support (4), described support is for falling " U " shape, support is fixedly installed bearing pin (7), described bearing pin is provided with fine setting axle sleeve (8), described fine setting axle sleeve longitudinal section is the ellipse that two ends are plane, fine adjustment shaft puts and is movably set with roller (5), described roller length is greater than chain length, described bearing pin and fine setting axle sleeve in be provided with can make lubricant oil enter into fine setting axle sleeve and roller surface of contact on oiling passage (10).
2. the belt tensioner of described a kind of shuttle car chain drive-belt according to claim 1, is characterized in that: described oiling passage (10) is in laterally "T"-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113343.3A CN104806717A (en) | 2015-03-16 | 2015-03-16 | Tensioning device for shuttle type mine car driving chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113343.3A CN104806717A (en) | 2015-03-16 | 2015-03-16 | Tensioning device for shuttle type mine car driving chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806717A true CN104806717A (en) | 2015-07-29 |
Family
ID=53691813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510113343.3A Pending CN104806717A (en) | 2015-03-16 | 2015-03-16 | Tensioning device for shuttle type mine car driving chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806717A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5524725A (en) * | 1994-07-01 | 1996-06-11 | Arctco, Inc. | Automatic chain tension adjustor |
| JP2008151263A (en) * | 2006-12-18 | 2008-07-03 | Ntn Corp | Pulley with aligning function |
| CN102308121A (en) * | 2010-04-28 | 2012-01-04 | 三菱重工业株式会社 | Driving force transmission device and method for adjusting same |
| CN202181079U (en) * | 2011-08-11 | 2012-04-04 | 江西四通重工机械有限公司 | Automatic tensioning mechanism for use by shuttle type mine car |
| CN202579854U (en) * | 2012-05-04 | 2012-12-05 | 辽宁石油机械制造有限公司 | Chain wheel tensioning device |
-
2015
- 2015-03-16 CN CN201510113343.3A patent/CN104806717A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5524725A (en) * | 1994-07-01 | 1996-06-11 | Arctco, Inc. | Automatic chain tension adjustor |
| JP2008151263A (en) * | 2006-12-18 | 2008-07-03 | Ntn Corp | Pulley with aligning function |
| CN102308121A (en) * | 2010-04-28 | 2012-01-04 | 三菱重工业株式会社 | Driving force transmission device and method for adjusting same |
| CN202181079U (en) * | 2011-08-11 | 2012-04-04 | 江西四通重工机械有限公司 | Automatic tensioning mechanism for use by shuttle type mine car |
| CN202579854U (en) * | 2012-05-04 | 2012-12-05 | 辽宁石油机械制造有限公司 | Chain wheel tensioning device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150729 |