CN2092372U - Thrust pedal of crusher for hydraulic overload protection - Google Patents
Thrust pedal of crusher for hydraulic overload protection Download PDFInfo
- Publication number
- CN2092372U CN2092372U CN 91210541 CN91210541U CN2092372U CN 2092372 U CN2092372 U CN 2092372U CN 91210541 CN91210541 CN 91210541 CN 91210541 U CN91210541 U CN 91210541U CN 2092372 U CN2092372 U CN 2092372U
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- China
- Prior art keywords
- pressure
- hydraulic
- crusher
- bearing
- thrust plate
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Abstract
The utility model provides a thrust pedal of a compound pendulum jaw crusher for hydraulic overload protection, comprising a global support and a pressure bearing channel tile which are respectively assembled on a housing and a moving jaw, wherein, the spherical surface groove of the global support is hinged with the spherical surface end of the piston of a hydraulic ram, and a pressure bearing pillar hinged with the pressure bearing channel tile is fixedly connected with the body of the hydraulic ram to be a whole. The hydraulic overload protection of the crusher is achieved by moving the piston to shorten the thrust pedal. The utility model can effectively overcome existing shortcomings in the prior art, and has the advantages of safe use, reducing the workload of equipment maintenance, the reliable overload protection provided for the crusher and remarkably enhancing the work efficiency and the life time of the crusher.
Description
The utility model relates to the hydraulic pressure overload protective thrust plate that a kind of single toggle jaw crusher is used.
Traditional single toggle jaw crusher is made the thrust plate of overload protection usually with the rigidity object.When entering iron block in the crusher chamber or surpass the aniseed piece of regulation permission, disintegrating machine seriously transships, by designing requirement, the rigidity object of above-mentioned thrust plate should at first damage unloading, causes moving jaw to hang down, and discharge gate enlarges, get rid of iron block or aniseed piece, to avoid destroying other parts of disintegrating machine.But; in conventional design with in making, the thrust plate of using as overload protection often can not get ideal control, particularly when rigidity object that the employing cast iron materials is made; sometimes the performance inconsistency because of cast iron materials is bigger, so the thrust plate performance of making also is difficult for grasping.In the time of the disintegrating machine overload may occurring, thrust plate does not damage, and causes the complete machine accident of scrapping to take place, and does not have overload protective function.In the time of also may occurring not transshipping, thrust plate damages voluntarily, causes the disintegrating machine can't operate as normal, has also increased maintenance of equipment work amount.
The purpose of this utility model provides a kind of novel hydraulic overload protection thrust plate; it can overcome the shortcoming that prior art exists effectively, and is safe in utilization, can reduce maintenance of equipment work amount; for disintegrating machine provides reliable overload protection, significantly improve the operating efficiency and the service life of disintegrating machine.
The purpose of this utility model is achieved in that this device comprises tumbler bearing and the pressure-bearing imbrex that is assembled in respectively on frame and the moving jaw, wherein the spherical groove of tumbler bearing is hinged with the piston sphere end of hydraulic jack, and the pressure-bearing post hinged with the pressure-bearing imbrex is integral with the cylinder body of hydraulic jack is affixed.The hydraulic jack that is communicated with pressure limiting Unloading Control oil circuit by its piston moving in cylinder body, shortens thrust plate, can realize the hydraulic pressure overload protective to disintegrating machine.
Because the utility model adopts the hydraulic jack of pressure limiting Unloading Control oil piping system control; hinged with the ball-joint compression leg that is hinged in tumbler bearing and the pressure-bearing imbrex respectively; constitute the hydraulic pressure overload protective thrust plate; so this thrust plate can be exactly according to the rules overload release signal; automatically unloading is safe in utilization, reliable.Itself does not damage thrust plate, as long as get rid of overload fault, this thrust plate can recover normal operating conditions.Therefore, it can reduce maintenance of equipment work amount, for disintegrating machine provides reliable overload protection, significantly improves the operating efficiency and the service life of disintegrating machine.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is a mechanism principle schematic diagram of the present utility model.
Fig. 4 is a hydraulic principle schematic diagram of the present utility model.
Describe concrete structure of the present utility model in detail according to Fig. 1-4.1 eccentric shaft, 2 moving jaws, 3 sealing shrouds, 4 tumbler bearings, 5 pistons, 6 cylinder bodies, 7 pressure-bearing imbrex, 8 pressure-bearing posts, 9 sealing rings, 10 support rings, 11 end caps, 12 three position four-way electromagnetic valves, 13 high-pressure overflow valves, 14 double hydraulic control check valves among the figure.This device comprises tumbler bearing 4, hydraulic jack, pressure-bearing post 8 and pressure limiting Unloading Control oil circuit and telescopic sealing dust-proof device.Wherein the spherical groove of tumbler bearing 4 is hinged with the piston 5 sphere ends of hydraulic jack.Pressure-bearing post 8 one ends and pressure-bearing imbrex 7 are hinged, and the other end is with cylinder body 6 affixed being integral of hydraulic jack.With the hydraulic jack that pressure limiting Unloading Control oil circuit is communicated with, piston 5 is assembled in by sealing ring 9, support ring 10 and end cap 11 in the cylinder body 6 that has the high pressure hydraulic fluid port, and its high pressure hydraulic fluid port can be communicated with fuel tank by high-pressure overflow valve 13; Also can be communicated with fuel tank by three position four-way electromagnetic valve 12; Also can be communicated with fuel tank by high-pressure overflow valve 13 and three position four-way electromagnetic valve.Therefore, when disintegrating machine transshipped, its control signal can the oil pressure variation worker from hydraulic jack obtain from the electric current variation of disintegrating machine drive motors.When oil pressure surpasses limit value, the hydraulic oil in the hydraulic jack cylinder body 6, through high-pressure overflow valve 13 releases, piston 5 moves from the high pressure hydraulic fluid port, shortens distance between tumbler bearing 4 and the pressure-bearing post 8, and thrust plate is shortened, and discharge gate enlarges, and can fix a breakdown.And then connect the control oil circuit, make hydraulic jack recover normal operating conditions.When the electric current of drive motors surpassed limit value, the three position four-way electromagnetic valve 12 in the control oil circuit was connected, and the hydraulic oil in the hydraulic jack cylinder body 6 is through 14 releases of double hydraulic control check valve, and piston 5 moves, and shortens thrust plate, and discharge gate enlarges, and can fix a breakdown.If the overload signal of disintegrating machine obtains from hydraulic jack and drive motors simultaneously, then this device can obtain double insurance, has more improved the overload protective function to disintegrating machine.Hydraulic jack adopts telescopic sealing dust-proof device, is enclosed in reliably in the sealing shroud 3, has improved the overload protective function of thrust plate effectively.
Claims (4)
1, a kind of disintegrating machine hydraulic pressure overload protective thrust plate; comprise the tumbler bearing and the pressure-bearing imbrex that are assembled in respectively on frame and the moving jaw; the spherical groove that it is characterized in that tumbler bearing is hinged with the piston sphere end of hydraulic jack, and the pressure-bearing post hinged with the pressure-bearing imbrex is integral with the cylinder body of hydraulic jack is affixed.
2, thrust plate according to claim 1 is characterized in that hydraulic jack high pressure hydraulic fluid port is communicated with fuel tank by high-pressure overflow valve.
3, thrust plate according to claim 1 is characterized in that hydraulic jack high pressure hydraulic fluid port is communicated with fuel tank by three position four-way electromagnetic valve.
4, thrust plate according to claim 1 is characterized in that hydraulic jack adopts telescopic sealing dust-proof device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210541 CN2092372U (en) | 1991-05-07 | 1991-05-07 | Thrust pedal of crusher for hydraulic overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210541 CN2092372U (en) | 1991-05-07 | 1991-05-07 | Thrust pedal of crusher for hydraulic overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092372U true CN2092372U (en) | 1992-01-08 |
Family
ID=4919328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91210541 Withdrawn CN2092372U (en) | 1991-05-07 | 1991-05-07 | Thrust pedal of crusher for hydraulic overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322932C (en) * | 2002-04-12 | 2007-06-27 | 特雷克斯派克森有限公司 | Jaw crusher with a hydraulic cylinder overload arrangement |
| CN103285965A (en) * | 2013-05-23 | 2013-09-11 | 江苏天鹏机电制造有限公司 | Jaw crusher toggle plate |
| CN110355250A (en) * | 2019-08-12 | 2019-10-22 | 济南二机床集团有限公司 | A kind of toggle rod type machinery bound edge press machine |
-
1991
- 1991-05-07 CN CN 91210541 patent/CN2092372U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322932C (en) * | 2002-04-12 | 2007-06-27 | 特雷克斯派克森有限公司 | Jaw crusher with a hydraulic cylinder overload arrangement |
| CN103285965A (en) * | 2013-05-23 | 2013-09-11 | 江苏天鹏机电制造有限公司 | Jaw crusher toggle plate |
| CN110355250A (en) * | 2019-08-12 | 2019-10-22 | 济南二机床集团有限公司 | A kind of toggle rod type machinery bound edge press machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |