CN111729714A - Jaw crusher with straight-curve mixed crushing cavity - Google Patents

Jaw crusher with straight-curve mixed crushing cavity Download PDF

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Publication number
CN111729714A
CN111729714A CN202010644938.2A CN202010644938A CN111729714A CN 111729714 A CN111729714 A CN 111729714A CN 202010644938 A CN202010644938 A CN 202010644938A CN 111729714 A CN111729714 A CN 111729714A
Authority
CN
China
Prior art keywords
crushing
jaw
layer
cavity
movable jaw
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
Application number
CN202010644938.2A
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Chinese (zh)
Inventor
钟晓勤
牛晓建
沈秀国
纪琦强
纪林章
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Shanghai Institute of Technology
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Shanghai Institute of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Institute of Technology filed Critical Shanghai Institute of Technology
Priority to CN202010644938.2A priority Critical patent/CN111729714A/en
Publication of CN111729714A publication Critical patent/CN111729714A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/04—Jaw crushers or pulverisers with single-acting jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/005—Crushing or disintegrating by reciprocating members hydraulically or pneumatically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/025—Jaw clearance or overload control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B02C1/02—Jaw crushers or pulverisers
    • B02C1/10—Shape or construction of jaws

Abstract

The invention relates to a jaw crusher with a straight-curve mixed crushing cavity, which comprises a rack, a fixed jaw, an electric motor, a driving crankshaft and a movable jaw, wherein a fixed jaw toothed plate is fixedly installed on the inner side of the fixed jaw, and a movable jaw toothed plate is fixedly installed on the inner side of the movable jaw; a crushing cavity with a large upper part and a small lower part is formed between the fixed jaw toothed plate and the movable jaw toothed plate, the upper end of the crushing cavity is a feeding hole, the lower end of the crushing cavity is a discharging hole, the upper part of the crushing cavity is in a linear cavity shape, and the lower part of the crushing cavity is in a curved cavity shape; the curved cavity comprises a plurality of crushing layers from bottom to top, and when the movable jaw swings for one period, the quality of materials discharged by two adjacent crushing layers is equal.

Description

Jaw crusher with straight-curve mixed crushing cavity
Technical Field
The invention relates to mining mechanical equipment, in particular to a jaw crusher with a straight-curve mixed crushing cavity.
Background
The jaw crusher is commonly called as jaw crusher and also called as old tiger mouth, is common crushing equipment for simulating the movement of two jaws of an animal to finish crushing solid minerals with medium granularity, and is widely applied to crushing various ores and large materials in the industries of mine smelting, building materials, highways, railways, water conservancy, chemical engineering and the like. The fixed jaw of the jaw crusher is fixedly installed on a rack, the fixed jaw is movably arranged on a driving crankshaft, a belt pulley is sleeved on the driving crankshaft and is connected with a motor through a belt, and a crushing cavity with a large upper part and a small lower part is formed between the fixed jaw and the movable jaw. The movable jaw is driven by the motor to periodically approach and leave the fixed jaw, and when the movable jaw approaches the fixed jaw, the material in the crushing cavity is crushed under the actions of extrusion, bending, splitting and grinding; when the movable jaw is far away from the fixed jaw, the materials in the crushing cavity are discharged from the discharge port under the action of self gravity. At present, the existing jaw crusher generally adopts a linear cavity shape, and the whole crushing cavity adopts the same engaging angle, so that the materials near a discharge port are easy to block. The material that blocks up rubs repeatedly with moving the jaw pinion rack, has not only reduced the life who moves the jaw pinion rack, has increased useless consumption moreover, seriously influences jaw breaker material crushing quality and crushing efficiency.
Disclosure of Invention
The invention aims to provide a jaw crusher with a straight-curve mixed crushing cavity, which aims to solve the technical problem that when the existing jaw crusher crushes solid minerals, a discharge opening is easy to block, so that the service life of a movable jaw toothed plate is shortened, and the crushing efficiency is reduced.
In order to solve the problems, the invention provides a jaw crusher with a straight-curve mixed crushing cavity, which is characterized by comprising
A frame;
the fixed jaw is fixedly arranged on the rack, and a fixed jaw toothed plate is fixedly arranged on the inner side of the fixed jaw;
the motor is fixedly arranged on the frame;
the driving crankshaft is rotationally arranged on the rack, and the motor is in mechanical transmission connection with the driving crankshaft;
the upper part of the movable jaw is rotationally connected with the driving crankshaft, and the lower part of the movable jaw is movably connected to the rack through a toggle plate; a movable jaw toothed plate is fixedly mounted on the inner side of the movable jaw;
a crushing cavity with a large upper part and a small lower part is formed between the fixed jaw toothed plate and the movable jaw toothed plate, the upper end of the crushing cavity is a feeding hole, the lower end of the crushing cavity is a discharging hole, the upper part of the crushing cavity is in a linear cavity shape, and the lower part of the crushing cavity is in a curved cavity shape;
the curve cavity shape from bottom to top comprises a plurality of crushing layers, and when the movable jaw swings for one period, the mass of materials discharged by two adjacent crushing layers is equal.
Preferably, the lower portion of the fixed jaw toothed plate is divided into a plurality of fixed crushing sections from bottom to top, the lower portion of the movable jaw toothed plate is divided into a plurality of movable crushing sections from bottom to top, and a plurality of fixed crushing sections and a plurality of corresponding movable crushing sections form a plurality of crushing layers therebetween.
Preferably, it is a plurality of broken layer from the bottom up includes row's of material layer, first broken layer, the broken layer of second and the broken layer of third in proper order, and is a plurality of move broken section from the bottom up and include row material section, first broken section, the broken section of second and the broken section of third in proper order:
the layer height of the discharging layer is the vertical stroke of the lower end point of the discharging section, and the average engaging angle of the discharging layer is 17 degrees;
the layer height of the first crushing layer is the vertical stroke of the lower end point of the first crushing section, and the average engaging angle of the first crushing layer is 20.36 degrees;
the layer height of the second crushing layer is the vertical stroke of the lower end point of the second crushing section, and the average engaging angle of the second crushing layer is 20.23 degrees;
the layer height of the third crushing layer is the vertical stroke of the lower end point of the third crushing layer, and the average mesh angle of the third crushing layer is 26 degrees.
Preferably, a plurality of said dynamic crushing sections comprise a plurality of arcuate sections; or/and the plurality of fixed crushing sections comprise a plurality of arc-shaped sections.
Preferably, the total height of said plurality of crushing layers is no more than one third of the total height of said crushing chamber.
Preferably, the motor is in transmission connection with the driving crankshaft through a belt transmission mechanism:
the belt transmission mechanism comprises a large belt pulley, a small belt pulley and a conveying belt, the large belt pulley is fixedly sleeved on the driving crankshaft, the small belt pulley is fixedly sleeved on an output shaft of the motor, and the large belt pulley and the small belt pulley are connected through the conveying belt.
Preferably, a movable jaw shaft hole is formed in the upper portion of the movable jaw, a spherical roller bearing is mounted in the movable jaw shaft hole, the spherical roller bearing is mounted on the driving crankshaft, and the movable jaw is driven by the driving crankshaft to periodically approach and leave the fixed jaw.
Preferably, a hydraulic adjusting device is fixedly mounted on the frame, and two ends of the toggle plate are respectively pivoted with the movable jaw and the hydraulic adjusting device:
both ends of the toggle plate are convex arc-shaped connecting ends;
a first toggle plate seat is fixedly arranged at the lower part of the movable jaw, a first arc-shaped connecting groove is formed in the first toggle plate seat, and an arc-shaped connecting end at one end of the toggle plate is slidably arranged in the first arc-shaped connecting groove;
the hydraulic adjusting device is fixedly provided with a second toggle plate seat, a second arc-shaped connecting groove is formed in the second toggle plate seat, and the arc-shaped connecting end face of the other end of the toggle plate is arranged in the second arc-shaped connecting groove in a sliding mode.
Preferably, move the jaw pinion rack with decide jaw pinion rack both ends by straining mechanism fixed mounting respectively decide the jaw with move on the jaw, straining mechanism includes taut voussoir, gasket, bolt and nut, decide jaw pinion rack and move and all seted up the wedge groove on the jaw pinion rack, the inclined plane of taut voussoir matches each other with the inclined plane of wedge groove, and the lower surface of taut voussoir is hugged closely with the tank bottom of wedge groove, and the bolt passes taut voussoir, decides jaw, gasket and nut in proper order.
Compared with the prior art, the invention has the following technical effects:
1. the crushing cavity of the straight-curve mixed crushing cavity jaw crusher adopts the cavity shape of the upper straight line and the lower curve, the material quality in each crushing layer tends to be equal by adjusting the movable jaw inclination angle and the fixed jaw inclination angle of a plurality of crushing layers at the lower part of the crushing cavity under the condition of not changing the height of the crushing cavity, and the material quality discharged by the lower crushing layer and the material quality of the adjacent upper crushing layer are equal when the movable jaw swings for one period, so the probability of material blockage is reduced, and the service life of the movable jaw toothed plate is prolonged.
2. The jaw crusher discharging layer adopts a smaller engaging angle, and compared with the jaw crusher adopting a larger engaging angle, the jaw crusher adopting the smaller engaging angle has larger production capacity.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:
fig. 1 is a front view of a straight-curved mixed crushing chamber jaw crusher according to a preferred embodiment of the present invention;
FIG. 2 is a top view of a straight and curved mixed crushing chamber jaw crusher according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural view of a crushing chamber according to a preferred embodiment of the present invention.
Detailed Description
The jaw crusher with straight-curved mixed crushing cavity provided by the present invention will be described in detail with reference to fig. 1 to 3, and this embodiment is implemented on the premise of the technical solution of the present invention, and the detailed implementation and the specific operation process are given, but the scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and color the jaw crusher without changing the spirit and content of the present invention.
Referring to fig. 1 to 3, a jaw crusher with a straight-curved mixed crushing cavity comprises a frame 1, a fixed jaw 5, a motor 12, a driving crankshaft 10 and a movable jaw 3:
the fixed jaw 5 is fixedly installed on the rack 1, and the fixed jaw toothed plate 6 is fixedly installed on the inner side of the fixed jaw 5, the fixing mode of the fixed jaw toothed plate 6 on the fixed jaw 5 is not limited in the invention, such as the modes of thread fastening, welding, clamping and the like, the detachable thread fastening mode is preferred in the embodiment, and specifically, the detachable thread fastening mode is as follows: decide the 6 both ends of jaw pinion rack by tensioning mechanism 4 fixed mounting respectively decide on the jaw 5, in this embodiment, tensioning mechanism 4 includes taut voussoir 401, gasket 402, bolt 403 and nut 404, decide the last wedge groove of having seted up of jaw pinion rack 6, the inclined plane of taut voussoir 401 matches each other with the inclined plane of wedge groove, and the lower surface of taut voussoir 401 is hugged closely with the tank bottom of wedge groove, and bolt 403 passes taut voussoir 401 in proper order, decides jaw 5, gasket 402 and nut 404.
The motor 12 is fixedly arranged on the frame 1;
a driving crankshaft 10 is rotatably arranged on the frame 1, and the motor 12 is in transmission connection with the driving crankshaft 10. The electric motor 12 is in mechanical transmission connection with the driving crankshaft 10, such as gear transmission, belt transmission, transmission chain transmission, etc., in this embodiment, the belt transmission is taken as an example, in this embodiment, the electric motor 12 is in transmission connection with the driving crankshaft 10 through a belt transmission mechanism 11: the belt transmission mechanism 11 comprises a large belt pulley 1101, a small belt pulley 1103 and a conveyor belt 1102, the large belt pulley 1101 is fixedly sleeved on the driving crankshaft 10, the small belt pulley 1103 is fixedly sleeved on an output shaft of the motor 12, and the large belt pulley 1101 and the small belt pulley 1103 are connected through the conveyor belt 1102.
The upper portion of the movable jaw 3 is rotatably connected with the driving crankshaft 10, a movable jaw shaft hole 8 is formed in the upper portion of the movable jaw 3, a spherical roller bearing 9 is installed in the movable jaw shaft hole 8, the spherical roller bearing 9 is installed on the driving crankshaft 10, and the movable jaw 3 is driven by the driving crankshaft 10 to be close to and far away from the fixed jaw 5 periodically.
The lower part of the movable jaw 3 is movably connected to the frame 1 through a toggle plate 2, a hydraulic adjusting device is fixedly mounted on the frame 1, and two ends of the toggle plate 2 are respectively pivoted with the movable jaw 3 and the hydraulic adjusting device:
both ends of the toggle plate 2 are convex arc-shaped connecting ends;
a first toggle plate seat is fixedly arranged at the lower part of the movable jaw 3, a first arc-shaped connecting groove is formed in the first toggle plate seat, and an arc-shaped connecting end at one end of the toggle plate 2 is slidably arranged in the first arc-shaped connecting groove;
the hydraulic adjusting device is fixedly provided with a second toggle plate seat, a second arc-shaped connecting groove is formed in the second toggle plate seat, and the arc-shaped connecting end face of the other end of the toggle plate 2 is arranged in the second arc-shaped connecting groove in a sliding mode.
The movable jaw toothed plate 7 is fixedly installed on the inner side of the movable jaw 3, the fixing mode of the movable jaw toothed plate 7 on the movable jaw 3 is not limited, such as the modes of thread fastening, welding, clamping and the like, and the detachable thread fastening mode is preferably selected in the embodiment, and specifically: move 7 both ends of jaw pinion rack by straining mechanism fixed mounting respectively move on the jaw 3, in this embodiment, straining mechanism includes taut voussoir, gasket, bolt and nut, move and seted up the wedge groove on the jaw pinion rack 7, the inclined plane of taut voussoir matches each other with the inclined plane of wedge groove, and the lower surface of taut voussoir is hugged closely with the tank bottom of wedge groove, and the bolt passes taut voussoir in proper order, moves jaw 3, gasket and nut.
A crushing cavity 13 with a large upper part and a small lower part is formed between the fixed jaw toothed plate 6 and the movable jaw toothed plate 7, the upper end of the crushing cavity 13 is a feeding hole, the lower end of the crushing cavity 13 is a discharging hole, the upper part of the crushing cavity 13 is in a linear cavity shape 1301, and the lower part of the crushing cavity is in a curved cavity shape 1302;
the curved cavity 1302 comprises a plurality of crushing layers from bottom to top, and when the movable jaw 3 finishes one period of swinging, the mass of materials discharged by two adjacent crushing layers is equal. In the invention, under the condition of not changing the height of the crushing cavity, the material quality in each crushing layer tends to be equal by adjusting the inclination angles of the movable jaw and the fixed jaw of the plurality of crushing layers of the curve cavity 1302, namely the material quality discharged by the lower crushing layer and the material quality of the adjacent upper crushing layer are equal when the movable jaw 3 swings for one period.
In this embodiment, the lower portion of the fixed jaw toothed plate 6 is divided into a plurality of fixed crushing sections from bottom to top, the lower portion of the movable jaw toothed plate 7 is divided into a plurality of movable crushing sections from bottom to top, and the plurality of fixed crushing sections and the corresponding plurality of movable crushing sections form a plurality of crushing layers therebetween. The curved cavity shape 1302 is realized by changing the shapes of the fixed jaw toothed plate 6 and the movable jaw toothed plate 7, and in the embodiment, a plurality of movable crushing sections comprise a plurality of arc-shaped sections; or/and the plurality of fixed crushing sections comprise a plurality of arc-shaped sections.
The number of crushing layers below the crushing cavity is not particularly limited, in this embodiment, four layers are taken as an example, the number of crushing layers sequentially include a discharge layer 13021, a first crushing layer 13022, a second crushing layer 13023 and a third crushing layer 13024 from bottom to top, the number of movable crushing sections sequentially include a discharge section 301, a first crushing section 302, a second crushing section 303 and a third crushing section 304 from bottom to top, that is, the first crushing layer 13022 is located above the discharge layer 13021, the second crushing layer 13023 is located above the first crushing layer 13022, and the third crushing layer 13024 is located above the second crushing layer 13023.
The discharged material quality of these four broken layers equals, greatly reduced the incidence that jaw crusher blockked up, made jaw crusher crushing work more steady reliable, alleviateed the condition that moves jaw pinion rack 7 life decline that the jaw pinion rack 7 and the fixed jaw pinion rack 6 repeated friction caused.
Further, the layer height of the discharging layer 13021 is the vertical stroke of the lower end point of the discharging section 301, and the average engaging angle of the discharging layer 13021 is 17 degrees. The average engaging angle of the discharging layer 13021 is smaller than that of the existing jaw crusher, the production capacity of the jaw crusher is improved, when the jaw crusher works, the material in the discharging layer 13021 has pressure from the material in the upper crushing layer, and the material cannot fly out of a crushing cavity due to the fact that the engaging angle is small.
The height of the first crushing layer 13022 is the vertical stroke of the lower end point of the first crushing section 302, and the average bite angle of the first crushing layer 13022 is 20.36 degrees;
the height of the second crushing layer 13023 is the vertical stroke of the lower end point of the second crushing section 303, and the average engaging angle of the second crushing layer 13023 is 20.23 degrees;
the height of the third crushing layer 13024 is the vertical stroke of the lower end point of the third crushing section 304, and the average bite angle of the third crushing layer 13024 is 26 degrees.
The total height of the four crushing layers is not more than one third of the total height of the crushing chamber.
The working principle of the invention is as follows:
the motor 12 drives the driving crankshaft 10 to rotate through driving the transmission mechanism 11, the driving crankshaft 10 drives the movable jaw 3 to periodically swing, materials to be crushed enter the crushing cavity through the discharge port, and when the movable jaw 3 is close to the fixed jaw 5, the materials in the crushing cavity are crushed under the actions of extrusion, bending, splitting and grinding; when the movable jaw 3 is far away from the fixed jaw 5, the finished materials in the crushing cavity are discharged from the discharge port under the action of self gravity.
Compared with a jaw crusher adopting a linear cavity shape, the jaw crusher adopting the curved cavity shape 1302 at the lower part of the crushing cavity has the advantages that under the condition that the height of the crushing cavity is not changed, the material quality in the crushing layer at the lower part of the crushing cavity is equal by changing the structural shapes of the fixed jaw toothed plate 6 and the movable jaw toothed plate 7 when the jaw crusher works, so that the occurrence probability of blockage of the jaw crusher is greatly reduced, and the service life of the movable jaw toothed plate 7 is prolonged; the contact angle of the discharge layer 13021 is smaller and more material is discharged from the discharge opening alone, so that the jaw crusher has a higher capacity.

Claims (9)

1. A jaw crusher with straight-curve mixed crushing cavity is characterized by comprising
A frame;
the fixed jaw is fixedly arranged on the rack, and a fixed jaw toothed plate is fixedly arranged on the inner side of the fixed jaw;
the motor is fixedly arranged on the frame;
the driving crankshaft is rotationally arranged on the rack, and the motor is in mechanical transmission connection with the driving crankshaft;
the upper part of the movable jaw is rotationally connected with the driving crankshaft, and the lower part of the movable jaw is movably connected to the rack through a toggle plate; a movable jaw toothed plate is fixedly mounted on the inner side of the movable jaw;
a crushing cavity with a large upper part and a small lower part is formed between the fixed jaw toothed plate and the movable jaw toothed plate, the upper end of the crushing cavity is a feeding hole, the lower end of the crushing cavity is a discharging hole, the upper part of the crushing cavity is in a linear cavity shape, and the lower part of the crushing cavity is in a curved cavity shape;
the curve cavity shape from bottom to top comprises a plurality of crushing layers, and when the movable jaw swings for one period, the mass of materials discharged by two adjacent crushing layers is equal.
2. The jaw crusher with straight-curve mixed crushing cavity as claimed in claim 1, wherein the lower part of the fixed jaw toothed plate is divided into a plurality of fixed crushing sections from bottom to top, the lower part of the movable jaw toothed plate is divided into a plurality of movable crushing sections from bottom to top, and a plurality of crushing layers are formed between a plurality of fixed crushing sections and a plurality of corresponding movable crushing sections respectively.
3. The jaw crusher with straight-curve mixed crushing cavity as claimed in claim 2, wherein a plurality of crushing layers sequentially comprise a material discharging layer, a first crushing layer, a second crushing layer and a third crushing layer from bottom to top, and a plurality of movable crushing sections sequentially comprise a material discharging section, a first crushing section, a second crushing section and a third crushing section from bottom to top:
the layer height of the discharging layer is the vertical stroke of the lower end point of the discharging section, and the average engaging angle of the discharging layer is 17 degrees;
the layer height of the first crushing layer is the vertical stroke of the lower end point of the first crushing section, and the average engaging angle of the first crushing layer is 20.36 degrees;
the layer height of the second crushing layer is the vertical stroke of the lower end point of the second crushing section, and the average engaging angle of the second crushing layer is 20.23 degrees;
the layer height of the third crushing layer is the vertical stroke of the lower end point of the third crushing layer, and the average mesh angle of the third crushing layer is 26 degrees.
4. A straight and curved mixed crushing chamber jaw crusher as claimed in claim 2 wherein said plurality of dynamic crushing sections comprise a plurality of arcuate sections; or/and the plurality of fixed crushing sections comprise a plurality of arc-shaped sections.
5. A straight and curved mixed crushing chamber jaw crusher as claimed in claim 1 wherein the total height of said crushing layers is no more than one third of the total height of said crushing chamber.
6. A jaw crusher with a straight-curved mixed crushing cavity as claimed in claim 1, wherein the electric motor is in transmission connection with the driving crankshaft through a belt transmission mechanism:
the belt transmission mechanism comprises a large belt pulley, a small belt pulley and a conveying belt, the large belt pulley is fixedly sleeved on the driving crankshaft, the small belt pulley is fixedly sleeved on an output shaft of the motor, and the large belt pulley and the small belt pulley are connected through the conveying belt.
7. The jaw crusher with straight-curved mixed crushing cavity as claimed in claim 1, wherein the movable jaw has a movable jaw shaft hole in the upper part, and a spherical roller bearing is installed in the movable jaw shaft hole and installed on the driving crankshaft, and the movable jaw is driven by the driving crankshaft to periodically approach and separate from the fixed jaw.
8. A jaw crusher having a straight-curved mixed crushing chamber as claimed in claim 1, wherein said frame is fixedly provided with hydraulic adjusting means, and both ends of said toggle plate are pivotally connected to said movable jaw and said hydraulic adjusting means respectively:
both ends of the toggle plate are convex arc-shaped connecting ends;
a first toggle plate seat is fixedly arranged at the lower part of the movable jaw, a first arc-shaped connecting groove is formed in the first toggle plate seat, and an arc-shaped connecting end at one end of the toggle plate is slidably arranged in the first arc-shaped connecting groove;
the hydraulic adjusting device is fixedly provided with a second toggle plate seat, a second arc-shaped connecting groove is formed in the second toggle plate seat, and the arc-shaped connecting end face of the other end of the toggle plate is arranged in the second arc-shaped connecting groove in a sliding mode.
9. The jaw crusher with the straight-curve mixed crushing cavity as claimed in claim 1, wherein the movable jaw toothed plate and the fixed jaw toothed plate are fixedly mounted at two ends on the fixed jaw and the movable jaw respectively by a tensioning mechanism, the tensioning mechanism comprises a tensioning wedge, a gasket, a bolt and a nut, wedge grooves are formed in the fixed jaw toothed plate and the movable jaw toothed plate, the inclined plane of the tensioning wedge is matched with the inclined plane of the wedge grooves, the lower surface of the tensioning wedge is tightly attached to the bottom of the wedge grooves, and the bolt sequentially penetrates through the tensioning wedge, the fixed jaw, the gasket and the nut.
CN202010644938.2A 2020-07-06 2020-07-06 Jaw crusher with straight-curve mixed crushing cavity Pending CN111729714A (en)

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CN202010644938.2A CN111729714A (en) 2020-07-06 2020-07-06 Jaw crusher with straight-curve mixed crushing cavity

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Application Number Priority Date Filing Date Title
CN202010644938.2A CN111729714A (en) 2020-07-06 2020-07-06 Jaw crusher with straight-curve mixed crushing cavity

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112473786A (en) * 2020-11-13 2021-03-12 鹤岗市征楠煤化工有限公司 High-efficient coal cinder breaker
CN113413945A (en) * 2021-06-10 2021-09-21 浙江武精机器制造有限公司 Wear compensation mechanism for jaw crusher

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Publication number Priority date Publication date Assignee Title
GB1588249A (en) * 1977-07-13 1981-04-23 Kawasaki Heavy Ind Ltd Jaw plate structure for jaw crushers
CN202725226U (en) * 2012-07-28 2013-02-13 朱兴良 Long and narrow crushing pair with flat plate structure
CN208554345U (en) * 2018-05-07 2019-03-01 洛阳利尔中晶光伏材料有限公司 A kind of jaw crusher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1588249A (en) * 1977-07-13 1981-04-23 Kawasaki Heavy Ind Ltd Jaw plate structure for jaw crushers
CN202725226U (en) * 2012-07-28 2013-02-13 朱兴良 Long and narrow crushing pair with flat plate structure
CN208554345U (en) * 2018-05-07 2019-03-01 洛阳利尔中晶光伏材料有限公司 A kind of jaw crusher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
廖汉元: "《腭式破碎机》", 30 September 1998 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112473786A (en) * 2020-11-13 2021-03-12 鹤岗市征楠煤化工有限公司 High-efficient coal cinder breaker
CN113413945A (en) * 2021-06-10 2021-09-21 浙江武精机器制造有限公司 Wear compensation mechanism for jaw crusher
CN113413945B (en) * 2021-06-10 2022-09-06 浙江武精机器制造有限公司 Wear compensation mechanism for jaw crusher

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