CN103263957A - Impact rack adjusting device and impact crusher - Google Patents
Impact rack adjusting device and impact crusher Download PDFInfo
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- CN103263957A CN103263957A CN2013102224712A CN201310222471A CN103263957A CN 103263957 A CN103263957 A CN 103263957A CN 2013102224712 A CN2013102224712 A CN 2013102224712A CN 201310222471 A CN201310222471 A CN 201310222471A CN 103263957 A CN103263957 A CN 103263957A
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- adjusting device
- oil cylinder
- counterattack
- adjusting
- counterattack frame
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Abstract
The invention relates to an impact rack adjusting device and an impact crusher. The impact rack adjusting device comprises a body oil cylinder bracket, an adjusting oil cylinder, a pretightening spring, an adjusting rod and an adjusting nut, wherein a cylinder barrel of the adjusting oil cylinder is fixed on the body oil cylinder bracket; a piston rod of the adjusting oil cylinder penetrates through the body oil cylinder bracket and a crusher box; the piston rod end of the adjusting oil cylinder is connected with an impact rack by a pin shaft; one end of the adjusting rod is fixed on the crusher box; the adjusting rod penetrates through the body oil cylinder bracket; external screw threads are formed in other end of the adjusting rod; the pretightening spring is arranged on the adjusting rod in a sleeving manner; one end of the pretightening spring props against the body oil cylinder bracket; the adjusting nut is arranged at the other end of the adjusting rod, and props against the other end of the pretightening spring; and a spring pretightening force of the pretightening spring is adjusted by rotating the adjusting nut. According to the impact rack adjusting device and the impact crusher, the spring pretightening force can be adjusted, and rapid adjusting of the impact rack can be realized.
Description
Technical field
The present invention relates to engineering machinery field, relate in particular to a kind of counterattack frame adjusting device and impact breaker.
Background technology
Impact breaker is a kind of crushing mechanism that utilizes impact energy to come broken material.During machine works, under the drive of motor, the rotor high-speed rotation, when material enters the bar active region, broken with epitrochanterian bar bump, after thrown to again on the counterattack device broken again, it is broken again to bounce back into the bar active region from the counterattack liner plate again then, this process repeats, and is crushed to desired particle size up to material, is discharged by discharging opening.Adjust counterattack frame and gap between rotor and can reach the purpose that changes material discharging-material size and material shapes.
As shown in Figure 1, impact breaker mainly is made up of shell a7, rotor a4, bar a5, counterattack frame a2, counterattack frame adjusting device a1, counterattack liner plate a3, parts such as abrasion-proof backing block a6, auxiliary hood-opening device a8.During machine works, under the drive of motor, rotor a4 rotates at a high speed, when material enters the bar active region, broken with bar a6 on rotor a4 bump, after thrown to again on the counterattack liner plate a3 broken again, it is broken again to bounce back into the bar active region from counterattack liner plate a3 again then, this process repeats, and is crushed to desired particle size up to material, is discharged by discharging opening.
The counterpunch board aperture is namely strikeed back the minimum range between liner plate and the crusher rotor, regulate the angle of counterattack liner plate and just can regulate the aperture of strikeing back liner plate, and the size of counterpunch board aperture determines the granularity of disintegrating machine discharging, and greatly then discharging-material size is big as aperture, and the little then discharging-material size of aperture is little.Therefore can reach the purpose that changes material discharging-material size and material shapes by adjusting counterattack liner plate and gap between rotor (being the counterpunch board aperture).
The counterattack frame adjusting device of at present domestic impact breaker mainly contains two kinds of forms.The one, the Purely mechanical adjusting device, as shown in Figure 2, the shortcoming of this structure is that pressing force of the spring can not be adjusted, the effect of initial tension of spring is to make counterattack liner plate absorption portion kinetic energy when being subjected to the bump of broken object, alleviates the injury to mechanisms such as oil cylinders, simultaneously run into can not be broken object the time (as iron block etc.), push by broken rotor, the spring compression, the counterpunch board recession, eliminating can not broken thing.This structure not only can not be adjusted initial tension of spring, and along with the increase of counterpunch board aperture, initial tension of spring also increases thereupon, and adjustment process wastes time and energy.
Another kind is hydraulic jack Aided Machine formula adjusting device, as shown in Figure 3, though this structure adopts hydraulic jack, but still can not adjust the pretightning force of spring when adjusting, hydraulic jack only plays the effect of service hoisting, need adjusting adjust nut or add or reduce packing ring realization adjusting pretightning force and counterpunch board aperture between support and casing.
Can see that the counterattack frame adjusting device of impact breaker all can't be adjusted to initial tension of spring any fixed value at present, and all can't realize quick adjustment.
Summary of the invention
The objective of the invention is to propose a kind of counterattack frame adjusting device and impact breaker, can adjust initial tension of spring, and can realize strikeing back the quick adjustment of frame.
For achieving the above object, the invention provides a kind of counterattack frame adjusting device, comprise: the body cylinder bracket, adjust oil cylinder, preloading spring, adjusting lever and adjustment nut, the cylinder barrel of described adjustment oil cylinder is fixed on the described body cylinder bracket, the piston rod of described adjustment oil cylinder penetrates described body cylinder bracket and broken cabinet, and the tailpiece of the piston rod of described adjustment oil cylinder is connected on the counterattack frame by bearing pin, one end of described adjusting lever is fixed on the described broken cabinet, described adjusting lever penetrates described body cylinder bracket, and the other end of described adjusting lever is provided with external screw thread, described preloading spring is set on the described adjusting lever, and an end leans on described body cylinder bracket, described adjustment nut is arranged on the other end of described adjusting lever, and leaning the other end of described preloading spring, adjust the initial tension of spring of described preloading spring by rotating described adjustment nut.
Further, also be respectively equipped with spring-leaf retainer at the two ends of described preloading spring.
Further, also be provided with sleeve between described body cylinder bracket and described broken cabinet, described jacket casing is located on the described adjusting lever.
Further, also comprise reversal valve and fluid locking mechanism, the oil-in of described reversal valve and oil return opening communicate with hydraulic oil source and fuel tank respectively, and two actuator ports of described reversal valve communicate with rod chamber and the rodless cavity of described adjustment oil cylinder by described fluid locking mechanism.
Further, described reversal valve is electro-hydraulic proportion reversing valve.
Further, described fluid locking mechanism is bidirectional hydraulic lock.
Further, described reversal valve is solenoid directional control valve or hand-operated direction valve.
Further, described fluid locking mechanism is unidirectional hydraulic lock or balanced valve.
For achieving the above object, the invention provides a kind of impact breaker, comprise: broken cabinet, rotor, bar, counterattack frame, counterattack liner plate, abrasion-proof backing block and auxiliary hood-opening device, described counterattack liner plate is installed on the described counterattack frame, described bar is installed on the described rotor, wherein, also comprise aforesaid counterattack frame adjusting device.
Further, the piston rod of the adjustment oil cylinder of described counterattack frame adjusting device penetrates described broken cabinet, and the tailpiece of the piston rod of described adjustment oil cylinder is connected on the described counterattack frame by bearing pin, and an end of the adjusting lever of described counterattack frame adjusting device is fixed on the described broken cabinet.
Based on technique scheme, the present invention can adjust the aperture of counterpunch board by changing the piston rod degree of stretching out of adjusting oil cylinder, and can not influence the pretightning force of preloading spring, adjust nut and can adjust the pretightning force of preloading spring and utilize, and can adjust to the degree that needs.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of existing impact breaker.
Fig. 2 is existing a kind of structural representation of strikeing back the frame adjusting device.
Fig. 3 is the structural representation of existing another kind of counterattack frame adjusting device.
Fig. 4 strikes back the structural representation of an embodiment of frame adjusting device for the present invention.
Fig. 5 strikes back the structural representation of the part cross section of frame adjusting device embodiment for the present invention.
Fig. 6 is the hydraulic principle schematic diagram of invention counterattack frame adjusting device embodiment.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 4, strike back the structural representation of an embodiment of frame adjusting device for the present invention.In the present embodiment, counterattack frame adjusting device comprises: body cylinder bracket 2, adjustment oil cylinder 4, preloading spring 5, adjusting lever 14 and adjustment nut 7.The cylinder barrel of adjusting oil cylinder 4 is fixed on the body cylinder bracket 2 and (for example adopts bolt and nut shown in Figure 5 to fix, also can adopt welding or fixed form such as bonding), adjust piston rod penetrator cylinder bracket 2 and the broken cabinet 1 of oil cylinder 4, and the tailpiece of the piston rod of adjustment oil cylinder 4 is connected on the counterattack frame 9 by bearing pin 8.
One end of adjusting lever 14 is fixed on the broken cabinet 1, adjusting lever 14 penetrator cylinder brackets 2, and the other end of adjusting lever 14 is provided with external screw thread, preloading spring 5 is set on the adjusting lever 14, and an end leans on body cylinder bracket 2, adjust nut 7 and be arranged on the other end of adjusting lever 14, and leaning the other end of preloading spring 5, adjust the initial tension of spring that nut 7 is adjusted preloading spring 5 by rotation.
In the present embodiment, adjust oil cylinder 4 and can change counterattack frame 9 by the extension elongation that changes piston rod in the position on the direction of stretching out of piston rod, and then the aperture that is fixed on the counterattack liner plate 15 of counterattack on the frame 9 adjusted, because the spacing between body cylinder bracket 2 and the broken cabinet 1 is fixed in adjustment process, therefore when adjusting the aperture of oil cylinder 4 adjusting counterattack liner plates 15, the spacing of adjusting between nut 7 and the body cylinder bracket 2 can not change, so the pretightning force of preloading spring 5 can not change along with the adjustment of aperture.And the adjusting of 4 pairs of piston rods of adjustment oil cylinder accurately and reliably, and is time saving and energy saving.
When regulating the pretightning force of preloading spring 5, can adjust nut 7 by rotation and change the spacing of adjusting between nut 7 and the body cylinder bracket 2, and then realize the adjustment of the pretightning force of preloading spring 5.This adjustment mode is very convenient, only needs rotation to adjust nut 7 and gets final product, and can not change the piston rod extension elongation of adjusting oil cylinder 4 in this adjustment process, therefore can not change the aperture of counterattack liner plate 15 when adjusting the pretightning force of preloading spring 5 simultaneously.
Can see from embodiment illustrated in fig. 5, can also be respectively equipped with spring-leaf retainer 6 at the two ends of preloading spring 5.Between body cylinder bracket 2 and broken cabinet 1, can also be provided with sleeve 3, and sleeve 3 is set on the adjusting lever 14.The height of sleeve 3 can limit the extreme position of adjusting oil cylinder 4, namely adjusts the initial distance of body cylinder bracket 2 and broken cabinet 1.By changing the sleeve 3 of differing heights, perhaps increase or reduce the distance that pad changes body cylinder bracket 2 and broken cabinet 1.When broken host work, when counterattack liner plate 15 clashed into or run into can not be broken object, spring is compressed, the distance between this moment body cylinder bracket 2 and the broken cabinet 1 can increase, but can not be reduced to the height less than sleeve 3.
Fig. 6 has provided the hydraulic principle of counterattack frame adjusting device embodiment, counterattack frame adjusting device comprises reversal valve and fluid locking mechanism, the oil-in of reversal valve and oil return opening communicate with hydraulic oil source 12 and fuel tank 13 respectively, and two actuator ports of reversal valve communicate with rod chamber and the rodless cavity of adjusting oil cylinder by the fluid locking mechanism.
In the present embodiment, reversal valve can be electro-hydraulic proportion reversing valve 11, also can adopt solenoid directional control valve or hand-operated direction valve.The fluid locking mechanism can be bidirectional hydraulic lock 10, also can adopt unidirectional hydraulic lock or balanced valve.
Pressure oil that hydraulic oil source 12 provides enters rod chamber or the rodless cavity of hydraulic jack 4 through electro-hydraulic proportion reversing valve 11, regulates oil cylinder 4 and can drive the adjustment that counterattack frame 9 realizes strikeing back the aperture of liner plate 15.Electro-hydraulic proportion reversing valve 11 can be realized Remote by external button, therefore can adjust the aperture of counterattack liner plate very easily, bidirectional hydraulic lock 10 can play the effect of airtight adjusting oil cylinder 4 internal pressure oil, prevents that pressure oil from leaking into fuel tank 13 through electro-hydraulic proportion reversing valve 11.
Above-mentioned counterattack frame adjusting device can be applied in the impact breaker, this impact breaker comprises: broken cabinet, rotor, bar, counterattack frame, counterattack liner plate, abrasion-proof backing block, auxiliary hood-opening device and counterattack frame adjusting device, described counterattack liner plate is installed on the described counterattack frame, and described bar is installed on the described rotor.The piston rod of the adjustment oil cylinder of counterattack frame adjusting device penetrates described broken cabinet, and the tailpiece of the piston rod of described adjustment oil cylinder is connected on the described counterattack frame by bearing pin, and an end of the adjusting lever of described counterattack frame adjusting device is fixed on the described broken cabinet.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. strike back the frame adjusting device for one kind, it is characterized in that, comprise: the body cylinder bracket, adjust oil cylinder, preloading spring, adjusting lever and adjustment nut, the cylinder barrel of described adjustment oil cylinder is fixed on the described body cylinder bracket, the piston rod of described adjustment oil cylinder penetrates described body cylinder bracket and broken cabinet, and the tailpiece of the piston rod of described adjustment oil cylinder is connected on the counterattack frame by bearing pin, one end of described adjusting lever is fixed on the described broken cabinet, described adjusting lever penetrates described body cylinder bracket, and the other end of described adjusting lever is provided with external screw thread, described preloading spring is set on the described adjusting lever, and an end leans on described body cylinder bracket, described adjustment nut is arranged on the other end of described adjusting lever, and leaning the other end of described preloading spring, adjust the initial tension of spring of described preloading spring by rotating described adjustment nut.
2. counterattack frame adjusting device according to claim 1 is characterized in that, also is respectively equipped with spring-leaf retainer at the two ends of described preloading spring.
3. counterattack frame adjusting device according to claim 1 and 2 is characterized in that, also is provided with sleeve between described body cylinder bracket and described broken cabinet, and described jacket casing is located on the described adjusting lever.
4. counterattack frame adjusting device according to claim 1, it is characterized in that, also comprise reversal valve and fluid locking mechanism, the oil-in of described reversal valve and oil return opening communicate with hydraulic oil source and fuel tank respectively, and two actuator ports of described reversal valve communicate with rod chamber and the rodless cavity of described adjustment oil cylinder by described fluid locking mechanism.
5. counterattack frame adjusting device according to claim 4 is characterized in that, described reversal valve is electro-hydraulic proportion reversing valve.
6. counterattack frame adjusting device according to claim 4 is characterized in that, described fluid locking mechanism is bidirectional hydraulic lock.
7. counterattack frame adjusting device according to claim 4 is characterized in that, described reversal valve is solenoid directional control valve or hand-operated direction valve.
8. counterattack frame adjusting device according to claim 4 is characterized in that, described fluid locking mechanism is unidirectional hydraulic lock or balanced valve.
9. impact breaker, comprise: broken cabinet, rotor, bar, counterattack frame, counterattack liner plate, abrasion-proof backing block and auxiliary hood-opening device, described counterattack liner plate is installed on the described counterattack frame, described bar is installed on the described rotor, it is characterized in that, also comprise the arbitrary described counterattack frame adjusting device of claim 1～8.
10. impact breaker according to claim 9, it is characterized in that, the piston rod of the adjustment oil cylinder of described counterattack frame adjusting device penetrates described broken cabinet, and the tailpiece of the piston rod of described adjustment oil cylinder is connected on the described counterattack frame by bearing pin, and an end of the adjusting lever of described counterattack frame adjusting device is fixed on the described broken cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222471.2A CN103263957B (en) | 2013-06-04 | 2013-06-04 | Impact rack adjusting device and impact crusher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222471.2A CN103263957B (en) | 2013-06-04 | 2013-06-04 | Impact rack adjusting device and impact crusher |
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| Publication Number | Publication Date |
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| CN103263957A true CN103263957A (en) | 2013-08-28 |
| CN103263957B CN103263957B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310222471.2A Active CN103263957B (en) | 2013-06-04 | 2013-06-04 | Impact rack adjusting device and impact crusher |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555227A (en) * | 2020-11-20 | 2021-03-26 | 湖南三一快而居住宅工业有限公司 | Automatic adjusting system for sizes of oil cylinder and material opening and crusher |
| CN113426528A (en) * | 2021-08-26 | 2021-09-24 | 江苏迈斯特重工机械有限公司 | Drawing type reversible sand making machine |
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| US4017035A (en) * | 1974-07-27 | 1977-04-12 | Hazemag Dr. E. Andreas Kg | Impact crusher with adjustable impact or grinding means |
| CN2392611Y (en) * | 1999-09-15 | 2000-08-23 | 李朝建 | Adjustable back-beating board for constant-force regulation mechanism of disintegrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555227A (en) * | 2020-11-20 | 2021-03-26 | 湖南三一快而居住宅工业有限公司 | Automatic adjusting system for sizes of oil cylinder and material opening and crusher |
| CN113426528A (en) * | 2021-08-26 | 2021-09-24 | 江苏迈斯特重工机械有限公司 | Drawing type reversible sand making machine |
| CN113426528B (en) * | 2021-08-26 | 2021-11-02 | 江苏迈斯特重工机械有限公司 | Drawing type reversible sand making machine |
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| CN103263957B (en) | 2014-11-05 |
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Effective date of registration: 20200509 Address after: 221004 Jiangsu city of Xuzhou province Xuzhou economic and Technological Development Zone of High Road No. 39 Patentee after: XUZHOU XCMG MINING MACHINERY Co.,Ltd. Address before: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee before: XUZHOU XCMG SCHWING MACHINERY Co.,Ltd. |