CN202061645U - Jaw crusher with single-shaft double-crank rocker mechanism - Google Patents
Jaw crusher with single-shaft double-crank rocker mechanism Download PDFInfo
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- CN202061645U CN202061645U CN 201120107164 CN201120107164U CN202061645U CN 202061645 U CN202061645 U CN 202061645U CN 201120107164 CN201120107164 CN 201120107164 CN 201120107164 U CN201120107164 U CN 201120107164U CN 202061645 U CN202061645 U CN 202061645U
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- jaw
- crank
- moving jaw
- crusher
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Abstract
The utility model discloses a jaw crusher with a single-shaft double-crank rocker mechanism, comprising a rack, a fixed jaw plate, a movable jaw plate, a front crank rocker mechanism, a rear crank rocker mechanism and a driving wheel, wherein the front crank rocker mechanism comprises a front mobile jaw, a front toggle plate and an eccentric driving shaft; the rear crank rocker mechanism comprises a rear mobile jaw, a rear toggle plate and the eccentric driving shaft; the front mobile jaw and the rear mobile jaw are pivoted together on the eccentric driving shafts; one end of the front toggle plate is pivoted below the rear side of the front mobile jaw, and the other end of the front toggle plate is pivoted below the front side of the rear mobile jaw; one end of the rear toggle plate is pivoted below the rear side of the rear mobile jaw, and the other end of the rear toggle plate is pivoted on the rack; and the movable jaw plate is fixedly connected to the front mobile jaw so as to be opposite to the fixed jaw plate to form a crushing cavity. The jaw crusher has the remarkable effects that a horizontal movement stroke at the lower part of the mobile jaw is mainly used for crushing materials rather than discharging the materials so that one crusher device has the efficacy of secondary crushing.
Description
Technical field
The utility model relates to the jaw crusher field, a kind of jaw crusher with single shaft double-crank endplay device of more specifically saying so.
Background technology
Jaw crusher, it is broken to be commonly called as jaw, most popular on the market now is single toggle jaw crusher, it by moving jaw with decide two jaws of jaw and form crusher chamber, be two jaw movements of simulated animal and finish the disintegrating machine of material crushing operation.Extensively apply to the medium size fragmentation of various ores and bulk materials in the industries such as mine, smelting, building materials, highway, railway, water conservancy and chemical industry.
The jaw crusher of prior art (refers to single toggle jaw crusher, see a common typical structure from the mechanics angle down together), (its eccentric drive shaft is a crank promptly all to have used a cover crank endplay device, moving jaw is a connecting rod, bracket is a rocking bar), moving jaw one side and machine one side are formed a U type crusher chamber, moving jaw top directly leans on eccentric drive shaft to obtain the broken stroke of horizontal direction, and moving jaw bottom is made circular motion by moving jaw and driven broken stroke and the discharges material stroke that bracket waves the acquisition horizontal direction.This structural advantages is simple in structure, easily makes, and becomes a kind of disintegrating machine that is most widely used thus.But shortcoming is, under this mechanism, by moving jaw up pulling force drive bracket and wave the broken stroke that produces horizontal direction, to " crushing force and discharge capacity " is a pair of contradiction, when promptly requiring breaking capacity big, the discharges material ability approaches zero, and when requiring discharge capacity maximum, crushing force reduces sharply.
Above contradiction is by the decision of the mechanics principle of its mechanism, as Fig. 1 is a kind of structural representation of the jaw crusher of prior art, comprise frame 1, eccentric drive shaft 3, fixed jaw 6, sewing jaw 5, preceding moving jaw 4, preceding bracket 7 and drive 2, preceding moving jaw 4 tops directly obtain the crushing force of horizontal directions by eccentric drive shaft 3, bracket 7 waved the crushing force that obtains horizontal direction and discharges stroke before eccentric drive shaft 3 drives were leaned in preceding moving jaw 4 bottoms.Preceding bracket 7 (referring to accompanying drawing 5 and accompanying drawing 6) under (referring to accompanying drawing 3 and accompanying drawing 4) and drive line angle θ minimized state under the drive line angle θ maximized state, moving jaw tensile force f 1 and the synthetic F3 that makes a concerted effort of preceding bracket propulsive thrust F2 among the figure, F3 can be decomposed into vertical stress component F5 and horizontal component F4 again with joint efforts, wherein horizontal component F4 is effective crushing force, obviously horizontal component F4 is less than tensile force f 1, and the motion of broken motor-driven jaw bottom is in the state of " subtracting power " all the time.We can learn in addition, the horizontal stroke S that preceding moving jaw top dead centre M2 and lower dead center M1 position form is less than the S2 under drive line angle θ minimized state at the S1 under the drive line angle θ maximized state, but the F4 under the drive line angle θ maximized state is greater than the F`4 under the drive line angle θ minimized state.
People have higher output in order to pursue disintegrating machine in the reality, all the floss hole stroke is put maximum, though this helps the discharges material requirement, horizontal crushing force at this moment is in maximum and subtracts under the power state, this is a pair of contradiction: stroke was little when promptly crushing force was big, and crushing force was little when stroke was big.
In a word, the motion of the moving jaw bottom of prior art jaw crusher is that major function is set with the discharges material, so the motion of moving jaw bottom is the stroke of material discharging, rather than the stroke of material fragmentation.Though it is subsidiary have a bit broken function, very little and loss is very big (subtracting the power effect because exist).This is the intrinsic disadvantage and the weakness of prior art jaw crusher, and jaw crusher has been done various improvement, innovation from being born to today, has also announced many utility models and utility model patent.But all do not relate to above drawback, as patent ZL02130566.8, it has also only solved improves part abrasion resistance and problem easy to adjust, and " subtracting power " disadvantage does not solve.
And for example patent ZL200810043629 is to have replaced bracket with the elbow rod, has only changed version and stress condition, and the contradiction of crushing force and discharge capacity still exists.Owing to have " subtracting the power effect " all the time in the crank work done from top to bottom, the work done of moving jaw bottom also just exists contradiction all the time with discharging, but in order to make disintegrating machine efficient (output height), the action of moving jaw bottom can only be to be the main purpose setting with the discharging, and both can not get compatibility work done and discharging.
The utility model content
It can only be the deficiency of main purpose with the discharging that the purpose of this utility model is to overcome prior art moving jaw bottom action, provide a kind of the functional promotion that is in discharging in the prior art has been broken function, making the motion of jaw bottom promptly is the broken stroke that is in reinforcement, it is again bigger discharging stroke, eliminated the two conflicting drawback of prior art jaw crusher discharges material and broken work done, made a disintegrating machine equipment have the jaw crusher with single shaft double-crank endplay device of the effect of two-stage crushing.
In order to reach above purpose, the utility model is to be achieved through the following technical solutions: a kind of jaw crusher with single shaft double-crank endplay device, comprise frame, fixed jaw, sewing jaw, crank rocker device and drive, fixed jaw is fixedly connected on the frame, sewing jaw is fixedly connected on the crank rocker device, the crank rocker device is arranged on the frame and with drive and is connected, it is characterized in that, crank and rocker mechanism and rear crank endplay device before described crank rocker device comprises, moving jaw before preceding crank and rocker mechanism comprises, preceding bracket and eccentric drive shaft; The rear crank endplay device comprises the moving jaw in back, back bracket and eccentric drive shaft; Forward and backward moving jaw is articulated on the eccentric drive shaft jointly, and eccentric drive shaft is connected with drive; Moving jaw rear side below before preceding bracket one end is articulated in, the other end is articulated in the back and moves below, jaw front side, and back bracket one end is articulated in moving jaw rear side below, back, and the other end is articulated on the frame; Before being fixedly connected on, sewing jaw forms crusher chamber with the fixed jaw face-off on the moving jaw.
Technical characterstic of the present utility model be to design two covers complete, crank and rocker mechanism independently; 1. in preceding crank and rocker mechanism, eccentric drive shaft is that crank, preceding moving jaw are that connecting rod, preceding bracket are rocking bars; 2. in the rear crank endplay device, eccentric drive shaft is that the moving jaw in crank, back is that connecting rod, back bracket are rocking bars.Forward and backward crank and rocker mechanism is organically combined, promptly preceding bracket in the preceding crank and rocker mechanism and the disconnection of the pivoting point on the frame are pulled back, insert the rear crank endplay device, promptly back moving jaw front lower place in the rear crank endplay device and preceding bracket articulate, and back bracket and frame articulate.Because pre-eccentric driving shaft and back eccentric drive shaft have so just formed single shaft double-crank endplay device through the drive Synchronous Transmission.
It becomes " reinforcement " state with prior art moving jaw bottom motion by the state of " subtracting power ", its force analysis is as follows: the broken motor-driven jaw of (1) prior art bottom force analysis is referring to accompanying drawing 2, moving jaw tensile force f 1 and the synthetic F3 that makes a concerted effort of preceding bracket propulsive thrust F2, F3 can be decomposed into vertical stress component F5 and horizontal component F4 again with joint efforts, wherein horizontal component F4 is effective crushing force, obviously horizontal component F4 is less than tensile force f 1, and the bottom motion of the broken motor-driven jaw of prior art is in the state of " subtracting power " all the time.(2) move jaw bottom force analysis before the utility model disintegrating machine referring to accompanying drawing 8, for ease of analyzing relatively, now the back bracket is separated, bracket before only analyzing, suppose that AB is a track that the O point is moved up and down, according to mechanics principle (parallelogram law), moving jaw tensile force f 6 and the synthetic F8 that makes a concerted effort of AB track propulsive thrust F7, and the F8 that makes a concerted effort can be decomposed into horizontal direction component F9 and vertical direction component F10, wherein horizontal direction component F9 is effective crushing force, vertical direction component F10 and tensile force f 6 equivalences, obviously horizontal direction component F9 is greater than tensile force f 6, and the bottom motion of the broken motor-driven jaw of visible the utility model is in " reinforcement " state.(because β is in the big angle state) above graphical analysis result show, under the double-crank endplay device, apply a little power for the moving jaw in back, moving jaw bottom produces a big crushing force before promptly can allowing, and up draws (the β angle is big more) reinforcement big more more, and this characteristic is just meeting in the broken stroke gets over backward, material is compacted more, need crushing force big more, and at this moment if can obtain enough big crushing force, then crushing effect is best.
Core technology of the present utility model is by single shaft double-crank endplay device, with preceding moving jaw bottom motion become " subtracting power " into " reinforcement " after, make the stroke (moving jaw lower horizontal direction componental movement before referring to) that is in discharge function originally become the stroke of broken function, and discharge function is to finish (promptly being broken stroke, is again the discharging stroke) in shattering process naturally along holding.The fragmentation acting on moving jaw top before preceding crank and rocker mechanism mainly solves, the rear crank endplay device mainly solves preceding fragmentation acting and the discharges material of moving the jaw bottom.Make a disintegrating machine be equivalent to possess the two-stage crushing ability.
The utility model its significant effect is to have broken through single toggle jaw crusher in the prior art only with the limitation of a cover crank endplay device, the utility model utilization is the combination of two cover crank endplay devices one in front and one in back, the mechanical structure of moving jaw bottom before having changed, change subtracts power and is reinforcement, eliminated prior art jaw crusher discharges material and broken acting the two contradict can not compatible drawback, make the disintegrating machine equipment have the effect of two-stage crushing.Promptly improve the ratio of reduction, made the material fragmentation thinner, more even, improved efficient.
As preferably, described eccentric drive shaft comprises axle sleeve and eccentric rod, and preceding moving jaw links to each other with axle sleeve, is positioned at it with the eccentric rod junction is provided with cavity at the axle sleeve middle part, and the eccentric rod in the cavity is provided with bearing liner, and the back is moved jaw and linked to each other with bearing liner; Also being provided with one on the axle sleeve supplies the moving jaw in back to stretch out and satisfy the opening of its amplitude of oscillation.
The cavity that the utility model has rationally utilized prior art structure bottom bracket axle and eccentric rod middle part to form, eccentric rod in positive this cavity of good utilisation, to on this section eccentric rod bearing liner be set, make this driving shaft have two eccentric drive abilities, in order to drive two cover crank rocker structures, the cost of this double-crank rocking bar technology of realization is reduced, transform the efficient raising.In order better to realize the rear crank endplay device, opening is set on axle sleeve, be used to draw the moving jaw in back and can satisfy its amplitude of oscillation again.Make and realize that double-crank endplay device structure is simpler, and can realize easily old product is done improvement of the present utility model, promote properties of product, and economize on resources.
As preferably, also be provided with one on the frame and regulate bolt, regulate bolt and be connected with the back bracket.By regulating the integral body adjustment of bolt, make this double-crank endplay device better to work to the double-crank endplay device.
As preferably, preceding moving jaw lower end also is connected with a connecting rod, and connecting rod is connected on the frame by buffer spring.Sewing jaw inertia is less when making fragmentation, better realizes broken function, increases above-mentioned buffer unit.
Beneficial effect: the utility model its significant effect is to have broken through single toggle jaw crusher in the prior art only with the limitation of a cover crank endplay device, the utility model utilization is the combination of two cover crank endplay devices one in front and one in back, the mechanical structure of moving jaw bottom before having changed, change subtracts power and is reinforcement, eliminated prior art jaw crusher discharges material and broken work done the two contradict can not compatible drawback, make the disintegrating machine equipment have the effect of two-stage crushing.Promptly improve the ratio of reduction, made the material fragmentation thinner, more even, improved efficient.
Description of drawings
Fig. 1 is a kind of configuration state schematic diagram of prior art;
Fig. 2 is the broken motor-driven jaw bottom force analysis figure of prior art;
Stroke state schematic diagram when Fig. 3 is the big angle for prior art drive line angle θ;
Fig. 4 is the force analysis figure of Fig. 3 state;
Stroke state schematic diagram when Fig. 5 is little angle for prior art drive line angle θ;
Fig. 6 is the force analysis figure of Fig. 5 state;
Fig. 7 is a kind of configuration state schematic diagram of the present utility model;
Fig. 8 is the broken motor-driven jaw bottom force analysis figure of the utility model.
Among the figure: 1-frame, 2-drive, moving jaw before the 3-eccentric drive shaft, 4-, 5-sewing jaw, 6-fixed jaw, bracket before the 7-, moving jaw behind the 8-, bracket behind the 9-, the 10-connecting rod, the 11-buffer spring, 12-regulates bolt, the 31-axle sleeve, 32-eccentric rod, 33-bearing liner, 34-cavity, 35-opening.
The specific embodiment
Below in conjunction with specific embodiments and the drawings the utility model is further described.
Embodiment: as shown in Figure 1, a kind of jaw crusher with single shaft double-crank endplay device, comprise frame 1, fixed jaw 6, sewing jaw 5, preceding crank and rocker mechanism, rear crank endplay device and drive 2, moving jaw 4, preceding bracket 7 and eccentric drive shaft 3 before preceding crank and rocker mechanism comprises; The rear crank endplay device comprises the moving jaw 8 in back, back bracket 9 and eccentric drive shaft 3.
Forward and backward moving jaw 4,8 is articulated on the eccentric drive shaft 3 jointly, and preceding moving jaw 4 links to each other with axle sleeve 31, and the moving jaw 8 in back links to each other with bearing liner 33; Also being provided with one on the axle sleeve 31 supplies the moving jaw 8 in back to stretch out and satisfy the opening 35 of its amplitude of oscillation.Moving jaw 4 rear sides below before preceding bracket 7 one ends are articulated in, the other end is articulated in the back and moves below, jaw 8 front sides, and back bracket 9 one ends are articulated in moving jaw 8 rear sides below, back, and the other end is articulated on the frame 1.
On the moving jaw 4, fixed jaw 6 was fixedly connected on the frame 1 before sewing jaw 5 was fixedly connected on.Also be provided with one on the frame 1 and regulate bolt 12, regulate bolt 12 and be connected with back bracket 9.Preceding moving jaw 4 rear side lower ends also are connected with a connecting rod 10, and connecting rod 10 is connected on the frame 1 by buffer spring 11.
Practical: technical characterstic of the present utility model be to design two covers complete, crank and rocker mechanism independently; 1. in preceding crank and rocker mechanism, eccentric drive shaft is that crank, preceding moving jaw are that connecting rod, preceding bracket are rocking bars; 2. in the rear crank endplay device, eccentric drive shaft is that the moving jaw in crank, back is that connecting rod, back bracket are rocking bars.Forward and backward crank and rocker mechanism organic assembling together, promptly preceding bracket in the preceding crank and rocker mechanism and pivoting point on the frame are separated (pivoting point draws back backward on the frame), insert the rear crank endplay device, be back moving jaw front lower place and the pivot joint of preceding bracket in the rear crank endplay device, back bracket and frame articulate.So just formed single shaft double-crank endplay device.
Above-described only is preferred implementation of the present utility model; should be understood that; for the those of ordinary skill in the weight of present technique field; under the prerequisite that does not break away from the utility model core technology feature; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. jaw crusher with single shaft double-crank endplay device, comprise frame, fixed jaw, sewing jaw, crank rocker device and drive, fixed jaw is fixedly connected on the frame, sewing jaw is fixedly connected on the crank rocker device, the crank rocker device is arranged on the frame and with drive and is connected, it is characterized in that, crank and rocker mechanism and rear crank endplay device before described crank rocker device comprises, moving jaw, preceding bracket and eccentric drive shaft before preceding crank and rocker mechanism comprises; The rear crank endplay device comprises the moving jaw in back, back bracket and eccentric drive shaft; Forward and backward moving jaw is articulated on the eccentric drive shaft jointly, and eccentric drive shaft is connected with drive; Moving jaw rear side below before preceding bracket one end is articulated in, the other end is articulated in the back and moves below, jaw front side, and back bracket one end is articulated in moving jaw rear side below, back, and the other end is articulated on the frame; Before being fixedly connected on, sewing jaw forms crusher chamber with the fixed jaw face-off on the moving jaw.
2. the jaw crusher with single shaft double-crank endplay device according to claim 1, it is characterized in that, described eccentric drive shaft comprises axle sleeve and eccentric rod, preceding moving jaw links to each other with axle sleeve, be positioned at it at axle sleeve middle part and the eccentric rod junction is provided with cavity, eccentric rod in the cavity is provided with bearing liner, and the moving jaw in back links to each other with bearing liner; Also being provided with one on the axle sleeve supplies the moving jaw in back to stretch out and satisfy the opening of its amplitude of oscillation.
3. the jaw crusher with single shaft double-crank endplay device according to claim 1 and 2 is characterized in that, also is provided with one on the frame and regulates bolt, regulates bolt and is connected with the back bracket.
4. the jaw crusher with single shaft double-crank endplay device according to claim 1 and 2 is characterized in that, preceding moving jaw rear side lower end also is connected with a connecting rod, and connecting rod is connected on the frame by buffer spring.
5. the jaw crusher with single shaft double-crank endplay device according to claim 3 is characterized in that, preceding moving jaw rear side lower end also is connected with a connecting rod, and connecting rod is connected on the frame by buffer spring.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120107164 CN202061645U (en) | 2011-04-13 | 2011-04-13 | Jaw crusher with single-shaft double-crank rocker mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120107164 CN202061645U (en) | 2011-04-13 | 2011-04-13 | Jaw crusher with single-shaft double-crank rocker mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061645U true CN202061645U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120107164 Expired - Lifetime CN202061645U (en) | 2011-04-13 | 2011-04-13 | Jaw crusher with single-shaft double-crank rocker mechanism |
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| CN (1) | CN202061645U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198409A (en) * | 2011-04-13 | 2011-09-28 | 义乌市黑白矿山机械有限公司 | Jaw crusher with single-shaft double-crank-rocker mechanism |
| WO2012139483A1 (en) * | 2011-04-13 | 2012-10-18 | 义乌黑白矿山机械有限公司 | Jaw crusher with double crank-rocker mechanisms |
| CN107624082A (en) * | 2015-05-13 | 2018-01-23 | 美卓矿物公司 | Jaw crusher, mineral material processing equipment and the method for processing mineral material |
-
2011
- 2011-04-13 CN CN 201120107164 patent/CN202061645U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198409A (en) * | 2011-04-13 | 2011-09-28 | 义乌市黑白矿山机械有限公司 | Jaw crusher with single-shaft double-crank-rocker mechanism |
| WO2012139483A1 (en) * | 2011-04-13 | 2012-10-18 | 义乌黑白矿山机械有限公司 | Jaw crusher with double crank-rocker mechanisms |
| CN102198409B (en) * | 2011-04-13 | 2015-04-01 | 义乌市黑白矿山机械有限公司 | Jaw crusher with single-shaft double-crank-rocker mechanism |
| CN107624082A (en) * | 2015-05-13 | 2018-01-23 | 美卓矿物公司 | Jaw crusher, mineral material processing equipment and the method for processing mineral material |
| CN107624082B (en) * | 2015-05-13 | 2020-01-10 | 美卓矿物公司 | Jaw crusher, mineral material processing plant and method for processing mineral material |
| US10710087B2 (en) | 2015-05-13 | 2020-07-14 | Metso Minerals, Inc. | Jaw crusher, mineral material processing plant and method for processing mineral material |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |