CN210752845U

CN210752845U - Jaw crusher

Info

Publication number: CN210752845U
Application number: CN201921220029.5U
Authority: CN
Inventors: 余罗兼; 童昕
Original assignee: Fujian University of Technology
Current assignee: Fujian University of Technology
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-16
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a jaw crusher, which comprises a frame, be equipped with in the frame by eccentric pivot driven movable jaw, movable jaw is installed on the movable jaw, still is equipped with the fixed jaw board that constitutes crushing chamber with movable jaw board in the frame, movable jaw board slope sets up, the activity jaw is the double curvature structure, and movable jaw board includes last camber section, middle vertical section and the lower camber section that sets gradually from top to bottom, last camber section, middle vertical section and activity jaw board constitute first crushing chamber jointly, increase the atress area of contact that acts on the stone; the movable jaw is obliquely arranged, a bending section is arranged at the lower end of the movable jaw, and the bending section and the lower curvature section form a second crushing cavity to increase extrusion and shearing force. The utility model discloses an adopt the fixed hubei province board of double curvature structure, formed two broken cavitys ingeniously, not only increased the atress area of contact who acts on the stone, increased extrusion shearing composite crushing mode moreover, promoted crushing effect and crushing efficiency.

Description

Jaw crusher

The technical field is as follows:

the utility model relates to a jaw breaker.

Background art:

at present, jaw crushers are widely applied to industrial departments such as mines, metallurgy, building materials, electric power and the like, a large amount of raw materials and secondary utilization waste materials need to be crushed every year, however, along with the phenomena of increasing lean ores, energy shortage, increasing demand of building materials, increasing proportion of regenerated materials and the like, the performance of the crushers is urgently needed to be improved, and the development of crushers with high quality, high efficiency, low energy consumption and low cost has very important significance. The jaw crusher completes crushing and ore discharging operation by simulating the movement of two jaws of an animal (periodically approaching and departing) through the two jaws. The crushing equipment has the advantages of simple structure, reliable work, easy manufacture and maintenance, strong adaptability, low cost and the like, and is the most widely applied crushing equipment in the crushing engineering category.

However, the fixed jaw plate of the existing jaw crusher is usually of a straight plate type structure, the stressed contact area of the fixed jaw plate of the structure acting on the stone is small, and the fixed jaw plate can only finish one-time extrusion crushing, the crushing mode has an unsatisfactory effect, and the crushing efficiency is relatively low.

The utility model has the following contents:

an object of the utility model is to above weak point, provide a jaw crusher, it is rational in infrastructure not only, crushing effect is good, can promote crushing efficiency moreover.

In order to realize the purpose, the utility model discloses a technical scheme is: a jaw crusher comprises a rack, wherein a movable jaw driven by an eccentric rotating shaft is arranged on the rack, a movable jaw plate is mounted on the movable jaw, a fixed jaw plate which forms a crushing cavity with the movable jaw plate is further arranged on the rack, the movable jaw plate is arranged in an inclined mode, and the movable jaw plate is of a double-curvature structure.

Furthermore, the movable jaw plate comprises an upper curvature section, a middle vertical section and a lower curvature section which are sequentially arranged from top to bottom, and the upper curvature section, the middle vertical section and the movable jaw plate jointly form a first crushing cavity; the movable jaw is obliquely arranged, a bending section is arranged at the lower end of the movable jaw, and the bending section and the lower curvature section form a second crushing cavity.

Furthermore, the center of curvature of the upper curvature section is located on one side of the fixed jaw plate close to the movable jaw plate, and the center of curvature of the lower curvature section is located on one side of the fixed jaw plate far away from the movable jaw plate.

Furthermore, guard plates are arranged on two sides of the first crushing cavity.

Furthermore, the surfaces of the movable jaw plate, the upper curvature section, the middle vertical section and the lower curvature section are all provided with crushing teeth.

Furthermore, big belt wheels are respectively installed at two ends of the eccentric rotating shaft, one of the big belt wheels is in transmission connection with a small belt wheel through a transmission belt, and the small belt wheel is driven to rotate through a driving motor.

Furthermore, one side of the movable jaw, which is far away from the fixed jaw plate, is provided with an adjusting seat fixed on the frame, and a ribbed plate is arranged between the adjusting seat and the movable jaw.

Compared with the prior art, the utility model discloses following effect has: the utility model has the advantages of simple and reasonable structure, through adopting the fixed hubei province board of double curvature structure, formed two broken cavitys ingeniously, not only increase the atress area of contact who acts on the stone, improve crushing effect, promoted crushing efficiency moreover.

Description of the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a first schematic view of the internal structure of the embodiment of the present invention;

FIG. 3 is a second schematic view of the internal structure of the embodiment of the present invention;

figure 4 is a perspective view of the fixed jaw plate;

figure 5 is a perspective view of the jaw;

figure 6 is a perspective view of the movable jaw plate.

In the figure:

1-a frame; 2-eccentric rotating shaft; 3-moving the jaw; 4-movable jaw plate; 5-fixing the jaw plate; 6-upper curvature section; 7-middle vertical section; 8-lower curvature segment; 9-a first crushing chamber; 10-bending section; 11-a second crushing chamber; 12-a guard plate; 13-crushing teeth; 14-large belt wheel; 15-small belt wheel; 16-a drive motor; 17-an adjusting seat; 18-ribbed plate.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 6, the utility model relates to a jaw crusher, including frame 1, be equipped with on frame 1 by eccentric pivot 2 driven movable jaw 3, movable jaw 4 is installed on movable jaw 3, still is equipped with on frame 1 with movable jaw 4 constitute the fixed jaw 5 in broken chamber, movable jaw 4 inclines to set up, movable jaw 5 is the double curvature structure, and movable jaw 5 includes upper curvature section 6, middle vertical section 7 and the lower curvature section 8 that sets gradually from top to bottom, upper curvature section 6, middle vertical section 7 and movable jaw 4 constitute first broken chamber 9 jointly, increase the atress area of contact who acts on the stone; the movable jaw 3 is obliquely arranged, a bending section 10 is arranged at the lower end of the movable jaw 3, and the bending section 10 and the lower curvature section 8 form a second crushing cavity 11 to increase extrusion and shearing force. Through adopting the fixed jaw plate of double curvature structure, formed two broken cavitys ingeniously, not only increased the atress area of contact who acts on the stone, increased extrusion shearing composite crushing mode moreover, promoted crushing effect and crushing efficiency.

In this embodiment, the center of curvature of the upper curvature section 6 is located on the side of the fixed jaw 5 which is closer to the movable jaw 4, and the center of curvature of the lower curvature section 8 is located on the side of the fixed jaw 5 which is further away from the movable jaw 4.

In this embodiment, guard plates 12 are provided on both sides of the first crushing chamber 9.

In this embodiment, the surface of the movable jaw plate 4, the upper curvature section 6, the middle vertical section 7 and the lower curvature section 8 are all provided with crushing teeth 13.

In this embodiment, the two ends of the eccentric rotating shaft 2 are respectively provided with a large belt wheel 14, one of the large belt wheels 14 is in transmission connection with a small belt wheel 15 through a transmission belt, and the small belt wheel 15 is driven to rotate through a driving motor 16.

In this embodiment, an adjusting seat 17 fixed on the frame 1 is arranged on one side of the movable jaw 3 away from the fixed jaw 5, and a rib plate 18 is arranged between the adjusting seat 7 and the movable jaw 3.

The utility model has the advantages that: (1) the fixed jaw plate adopts a double-curvature structure, so that the stress area is increased, and the shearing and extruding composite mode loading of a washboard mode is added, so that the crushing effect is improved; (2) the fixed jaw plate with a double-curvature structure is adopted, two crushing cavities are skillfully formed, and after the first extrusion crushing, the secondary crushing of the washboard is carried out, so that the mechanical crushing efficiency is improved; (3) when the old crusher is transformed, only the fixed jaw plate and related parameters are required to be transformed, and convenience and feasibility are provided for transformation of the existing crusher.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a jaw crusher, includes the frame, be equipped with in the frame by eccentric pivot driven move the hubei province, move and install movable hubei province board in the hubei province, still be equipped with in the frame with the fixed hubei province board that activity hubei province board constitutes broken chamber, its characterized in that: the movable jaw plate is obliquely arranged and is of a double-curvature structure.

2. The jaw crusher of claim 1, wherein: the movable jaw plate comprises an upper curvature section, a middle vertical section and a lower curvature section which are sequentially arranged from top to bottom, and the upper curvature section, the middle vertical section and the movable jaw plate jointly form a first crushing cavity; the movable jaw is obliquely arranged, a bending section is arranged at the lower end of the movable jaw, and the bending section and the lower curvature section form a second crushing cavity.

3. The jaw crusher of claim 2, wherein: the curvature center of the upper curvature section is positioned on one side of the fixed jaw plate close to the movable jaw plate, and the curvature center of the lower curvature section is positioned on one side of the fixed jaw plate far away from the movable jaw plate.

4. The jaw crusher of claim 2, wherein: and guard plates are arranged on two sides of the first crushing cavity.

5. The jaw crusher of claim 2, wherein: the surface of the movable jaw plate, the surface of the upper curvature section, the surface of the middle vertical section and the surface of the lower curvature section are all provided with crushing teeth.

6. The jaw crusher of claim 1, wherein: big belt pulleys are respectively installed at two ends of the eccentric rotating shaft, one of the big belt pulleys is in transmission connection with a small belt pulley through a transmission belt, and the small belt pulley is driven to rotate through a driving motor.

7. The jaw crusher of claim 1, wherein: one side of the movable jaw far away from the fixed jaw plate is provided with an adjusting seat fixed on the frame, and a ribbed plate is arranged between the adjusting seat and the movable jaw.