CN112892661A

CN112892661A - Jaw crusher

Info

Publication number: CN112892661A
Application number: CN202110066032.1A
Authority: CN
Inventors: 王美香
Original assignee: Individual
Current assignee: Tangshan Shanyue Heavy Industry Machinery Manufacturing Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-06-04
Anticipated expiration: 2041-01-19
Also published as: CN112892661B

Abstract

The invention relates to the technical field of mining machinery, and discloses a jaw crusher, which comprises a rack, wherein a shaft sleeve is fixedly arranged at the top of the rack, an eccentric shaft fixedly connected with a flywheel is movably sleeved in the shaft sleeve, a fixed jaw plate is fixedly arranged on the front surface of the rack, a movable jaw is movably arranged in the middle of the rack, an adjusting shaft is movably arranged on the back surface of the rack, an adjusting seat is movably arranged at one side of the middle part of the rack close to the adjusting shaft, a fixed shaft is fixedly sleeved at one side of the adjusting seat close to the movable jaw, a threaded piston is movably sleeved in the fixed shaft, a sleeve shaft is sleeved at the outer ring of the bottom of the threaded piston in a threaded manner, a movable jaw plate is fixedly arranged at one side of the movable jaw close to the fixed jaw plate, an air chamber is arranged in the movable jaw, an air hole is formed in the surface of the movable jaw plate, and a sleeve shaft, the heat dissipation is improved, the long-term use of the equipment is facilitated, and the applicability is high.

Description

Jaw crusher

Technical Field

The invention relates to the technical field of mining machinery, in particular to a jaw crusher.

Background

Utilize earlier the main equipment to carry out big breakage when mining, later recycle different equipment and carry out the processing to preliminary broken stone, wherein use in order to obtain littleer stone, generally all need carry out broken handle to big stone, jaw breaker is exactly one of them crushing apparatus, its principle is to move one through the motor drive eccentric wheel and moves the jaw and be the big stone between the broken its of periodic oscillation extrusion and the fixed jaw, and finally fall from the bottom and be collected, because its simple structure, job stabilization just is convenient for adjust the discharge gate size and uses more but also has certain problem:

1. when jaw crushing is carried out, large stones are crushed by mainly utilizing the interaction between the jaw plates, so that high heat can be brought at the same time when the friction loss is large, the jaw plates are arranged in the inner position of the machine body, and the back surfaces of the movable jaw plates are arranged on a large movable jaw frame, so that the heat loss is poor, and the movable jaw plates are easy to deform at high temperature after long-term work, so that the service life is influenced;

2. the back of the movable jaw is limited by the connection of the pull rod and the toggle plate when the movable jaw continuously vibrates, but the toggle plate is sleeved by the plate, and the direction of the sleeved opening is fixed, so that the toggle plate is subjected to great friction damage under the continuous vibration, and meanwhile, the adjustment of adaptability cannot be carried out, and when different crushing conditions are carried out, the loss condition of the toggle plate is aggravated once the movable jaw is changed, so that the service life is greatly reduced.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the jaw crusher which has the advantages of long service life and strong adaptability, and solves the problems in the background technology.

The invention provides the following technical scheme: a jaw crusher comprises a rack, wherein a shaft sleeve is fixedly installed at the top of the rack, a flywheel and a shaft sleeve inner ring are movably installed on the back of the shaft sleeve, an eccentric shaft fixedly connected with the flywheel is movably sleeved inside the shaft sleeve, an upper guard plate is fixedly installed at the upper half part of two side plates in the middle of the rack, a lower guard plate is fixedly installed at the lower half part of the two side plates in the middle of the rack, a fixed jaw plate is fixedly installed on the front of the rack, a movable jaw is movably installed in the middle of the rack, a bearing is movably sleeved between an outer ring at two ends of the eccentric shaft and the shaft sleeve, an adjusting shaft is movably installed at the back of the rack, an adjusting seat is movably installed at one side of the middle position of the rack close to the adjusting shaft, a fixed shaft is fixedly sleeved at one side of the adjusting seat close to the movable jaw, a threaded piston is, the movable jaw plate is fixedly mounted on one side, close to the fixed jaw plate, of the movable jaw, the air chamber is formed in the movable jaw plate, air holes are uniformly formed in one side, close to the movable jaw plate, of the air chamber, the movable extending end of the back face of the movable jaw is provided with a sleeve hole movably sleeved with a sleeve shaft, the back face of the rack is movably provided with a pull rod, one end of the pull rod is movably connected with the back face of the movable jaw, and a pull rod spring abutted against the machine body is movably sleeved on an outer ring, located at the back face of the rack, of.

Preferably, an air cavity is formed in the fixed shaft, a limiting ring is fixedly mounted on an inner ring at the top of the air cavity, a reset spring is movably sleeved on an outer ring of the threaded piston extending into the air cavity, an air guide pipe is fixedly connected between the top end of the fixed shaft and the back face of the movable jaw, the air guide pipe is communicated with the air cavity and is fixedly provided with an air outlet one-way valve at a communication position, and an air suction one-way valve is fixedly mounted on a side wall of the top of the fixed shaft, which is located between the limiting ring and the air guide pipe.

Preferably, the movable jaw plate is in the shape of an arc surface with a convex middle part, the sleeve shaft is in the shape of a sphere with the sleeving end of the movable jaw, and the end part of the sleeve shaft can rotate.

Preferably, one side of adjusting the seat passes through worm gear structure with the regulating spindle and meshes, the one end that threaded piston cup jointed with the dead axle adopts piston seal to cup joint, the one end that threaded piston cup jointed with the sleeve axle adopts the screw thread to cup joint and can adjust.

Preferably, the air outlet one-way valve only allows air to enter the air chamber from the air guide pipe, and the air suction one-way valve only allows air to enter the air chamber from the outside.

The invention has the following beneficial effects:

1. set up the air chamber and set up the gas pocket on the surface through the inside at the movable jaw to inside communicates through the air duct on the dead axle, compare in prior art, the in-process that drives screw piston at the sleeve axle and remove can form intermittent type formula in the air cavity of dead axle and give vent to anger, and lead to the air chamber inside and discharge from the gas pocket through the air duct, and then take away the temperature that reduces the during operation with the heat on the movable jaw of movable jaw surface mounting, be favorable to improving the life of breaker.

2. Through having set up the sleeve spindle, dead axle and threaded piston structure replace the bracket structure, and still be provided with the regulating spindle and adjust seat cooperation work, compare in prior art, the tip that can drive the sleeve spindle at the in-process of moving jaw motion produces certain rotation and the tensile condition that drives threaded piston, and then can realize the skew motion of equidirectional and angle, the serious condition of friction that the motion of having avoided straight plate-type caused, can also utilize the regulating spindle to adjust simultaneously, it adjusts the seat to have made things convenient for to realize a plurality of angle modulation, more do benefit to the breakage under the condition in the difference, crushing effect and suitability are improved.

Drawings

FIG. 1 is a top view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at B;

fig. 4 is a schematic view of a conventional jaw crusher.

In the figure: 1. a frame; 2. a shaft sleeve; 3. a flywheel; 4. moving the jaw; 401. a movable jaw plate; 402. an air chamber; 403. air holes; 404. trepanning; 5. fixing a jaw plate; 6. an upper guard plate; 7. a lower guard plate; 8. a bearing; 9. an eccentric shaft; 10. an adjusting seat; 11. a sleeve shaft; 12. fixing a shaft; 1201. an air cavity; 1202. a limiting ring; 1203. a return spring; 13. a threaded piston; 14. a pull rod; 15. a pull rod spring; 16. an air duct; 17. an air outlet one-way valve; 18. an adjustment shaft; 19. an air suction check valve; 20. a toggle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a jaw crusher comprises a frame 1, a shaft sleeve 2 fixedly installed on the top of the frame 1, a flywheel 3 movably installed on the back of the shaft sleeve 2, an inner ring of the shaft sleeve 2, an eccentric shaft 9 fixedly connected with the flywheel 3 and movably sleeved inside the shaft sleeve 2, an upper guard plate 6 fixedly installed on the upper half of the two side plates in the middle of the frame 1, a lower guard plate 7 fixedly installed on the lower half of the two side plates in the middle of the frame 1, a fixed jaw plate 5 fixedly installed on the front of the frame 1, a movable jaw 4 movably installed in the middle of the frame 1, a bearing 8 movably sleeved between the outer ring of the two ends of the eccentric shaft 9 and the shaft sleeve 2, an adjusting shaft 18 movably installed on the back of the frame 1, an adjusting seat 10 movably installed on one side of the frame 1 close to the adjusting shaft 18, a fixed shaft 12 fixedly sleeved on one side of the adjusting seat 10 close to the movable jaw 4, sleeve shaft 11 is cup jointed to the bottom outer lane screw of threaded piston 13, move one side fixed mounting that jaw 4 is close to fixed jaw 5 and have movable jaw 401, move the inside of jaw 4 and seted up air chamber 402, air chamber 402 has evenly seted up gas pocket 403 in one side that is close to movable jaw 401, move jaw 4 back activity and stretch out the end and set up the trepanning 404 that cup joints with sleeve shaft 11 activity, 1 back movable mounting of frame has one end and moves jaw 4 back swing joint's pull rod 14, the outer lane activity that pull rod 14 is located frame 1 back position is cup jointed the pull rod spring 15 that supports with the organism and press.

Wherein, the air cavity 1201 has been seted up to the inside of dead axle 12, the top inner circle fixed mounting of air cavity 1201 has spacing ring 1202, threaded piston 13 stretches into the inside outer lane activity of air cavity 1201 and has cup jointed reset spring 1203, fixedly connected with air duct 16 between the top of dead axle 12 and the back of moving jaw 4, air duct 16 communicates inside air chamber 402 and at intercommunication department fixed mounting there is air outlet check valve 17, the lateral wall fixed mounting that the top of dead axle 12 is located between spacing ring 1202 and the air duct 16 has the check valve 19 of breathing in, the whole passageway that forms a gas circulation, thereby utilize the vibration of moving jaw 4 to realize gaseous compression effect and play the radiating effect of gas flow.

Wherein, movable jaw 401 is the bellied cambered surface form in middle part, sleeve shaft 11 and move 4 cup joints the end and be the ball form and sleeve shaft 11's tip can rotate, movable jaw 401 convex surface form can increase its working area's area and also more do benefit to thermal scattering and disappearing simultaneously, sleeve shaft 11 and move between the jaw 4 activity cup joint and can rotate the convenience and can guarantee can not drive the big friction condition that appears between fixed axis 12 and the organism when moving jaw 4 during operation, and drive threaded piston 13 at sleeve shaft 11 and can lengthen, thereby can not further reduce the loss to fixed axis 12 production big deflection force effect yet.

Wherein, one side of adjusting seat 10 passes through worm gear structure with adjusting shaft 18 and meshes, the one end that threaded piston 13 and fixed shaft 12 cup jointed adopts piston seal to cup joint, threaded piston 13 adopts the screw thread to cup joint and can adjust with the one end that sleeve shaft 11 cup jointed, it can adjust to adjust seat 10 cooperation adjusting shaft 18 and is used for adapting to the demand of fixed shaft 12 under the different behavior of movable jaw 4, the condition of twist friction has been avoided appearing in fixed shaft 12, can improve holistic life, threaded piston 13 plays the effect of connecting sleeve shaft 11 and fixed shaft 12 on the one hand, on the other hand can stretch and compare in the effect that the loss is reduced in current 20 structures of bracket.

Wherein, the air outlet one-way valve 17 only supplies air to enter the air chamber 402 from the air duct 16, the air suction one-way valve 19 only supplies air to enter the air chamber 1201 from the outside, the threaded piston 13 can be intermittently driven to stretch and retract in the air chamber 1201 in the action process of the movable jaw 4, and the air in the air chamber 1201 can be guided into the air chamber 402 through the design of the one-way valve and the air duct 16 and finally discharged from the air hole 403 to dissipate heat of the movable jaw 401.

The working principle is that the equipment is started, stones are conveyed to the inside of the rack 1 through the conveying belt, the stones fall into the position between the fixed jaw plate 5 and the movable jaw plate 4, the eccentric shaft 9 driven by the flywheel 3 drives the movable jaw plate 401 to perform intermittent motion to crush large stones between the movable jaw plate and the fixed jaw plate 5, then the stones fall into the collecting area through the bottom, and the pull rod 14 is driven to perform intermittent motion and the pull rod spring 15 is compressed to realize the vibration reduction effect in the motion process of the movable jaw plate 4;

when the movable jaw 4 moves forwards, the sleeve shaft 11 can be driven to move forwards and the threaded piston 13 can be pulled out of the air cavity 1201 for one section, at the moment, air outside the air suction one-way valve 19 enters the air cavity 1201, when the movable jaw 4 returns to the original position, the sleeve shaft 11 can be driven to move backwards and compress the threaded piston 13 back into the air cavity 1201, the air inside the air cavity is pressed into the air chamber 402 through the air duct 16 and the air outlet one-way valve 17, then heat of the movable jaw plate 401 is blown out from the air hole 403 to be dissipated, when adjustment is made according to the size of broken stones, the adjusting shaft 18 only needs to be rotated to drive the adjusting seat 10 to rotate, and the sleeve shaft 11 is movably sleeved and cannot be influenced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a jaw crusher, includes frame (1), and the top fixed mounting of frame (1) has axle sleeve (2), and the back movable mounting of axle sleeve (2) has flywheel (3), axle sleeve (2) inner circle, and the inside activity of axle sleeve (2) has cup jointed eccentric shaft (9) with flywheel (3) fixed connection, its characterized in that: the upper guard plate (6) is fixedly mounted at the upper half part of two side plates at the middle part of the rack (1), the lower guard plate (7) is fixedly mounted at the lower half part of two side plates at the middle part of the rack (1), the fixed jaw plate (5) is fixedly mounted at the front side of the rack (1), the movable jaw (4) is movably mounted at the middle part of the rack (1), a bearing (8) is movably sleeved between the outer ring at the two ends of the eccentric shaft (9) and the shaft sleeve (2), the adjusting shaft (18) is movably mounted at the back side of the rack (1), the adjusting seat (10) is movably mounted at one side of the middle position of the rack (1) close to the adjusting shaft (18), the fixed shaft (12) is fixedly sleeved at one side of the adjusting seat (10) close to the movable jaw (4), the threaded piston (13) is sleeved at the inner part of the fixed shaft (12), and the sleeve shaft (11), move one side fixed mounting that jaw (4) is close to fixed jaw (5) have movable jaw (401), move the inside of jaw (4) and seted up air chamber (402), air chamber (402) evenly set up gas pocket (403) in the one side that is close to movable jaw (401), move jaw (4) back activity and stretch out the end and set up trepanning (404) that cup joint with sleeve shaft (11) activity, frame (1) back movable mounting has one end and moves jaw (4) back swing joint's pull rod (14), pull rod (14) are located the outer lane activity of frame (1) back position and cup joint pull rod spring (15) that press with the organism.

2. A jaw crusher as claimed in claim 1, wherein: an air cavity (1201) is formed in the fixed shaft (12), a limiting ring (1202) is fixedly mounted on the inner ring of the top of the air cavity (1201), a reset spring (1203) is movably sleeved on the outer ring of the threaded piston (13) extending into the air cavity (1201), an air duct (16) is fixedly connected between the top end of the fixed shaft (12) and the back face of the movable jaw (4), the air duct (16) is communicated with the air cavity (402) and is fixedly provided with an air outlet one-way valve (17) at the communicated position, and an air suction one-way valve (19) is fixedly mounted on the side wall of the top of the fixed shaft (12) located between the limiting ring (1202) and the air duct (16).

3. A jaw crusher as claimed in claim 1, wherein: the movable jaw plate (401) is in an arc surface shape with a convex middle part, the sleeving end of the sleeve shaft (11) and the movable jaw (4) is in a spherical shape, and the end part of the sleeve shaft (11) can rotate.

4. A jaw crusher as claimed in claim 2, wherein: one side of adjusting seat (10) passes through worm gear structure with regulating spindle (18) and meshes, the one end that threaded piston (13) and dead axle (12) cup jointed adopts piston seal to cup joint, the one end that threaded piston (13) and sleeve shaft (11) cup jointed adopts the screw thread to cup joint and can adjust.

5. A jaw crusher as claimed in claim 1, wherein: the air outlet one-way valve (17) only allows air to enter the air chamber (402) from the air guide pipe (16), and the air suction one-way valve (19) only allows air to enter the air chamber (1201) from the outside.