WO2013053274A1

WO2013053274A1 - Cone crusher

Info

Publication number: WO2013053274A1
Application number: PCT/CN2012/081377
Authority: WO
Inventors: 来军剑
Original assignee: Lai Junjian
Priority date: 2011-10-10
Filing date: 2012-09-14
Publication date: 2013-04-18
Also published as: CN102327791A

Abstract

Disclosed is a cone crusher, comprising a fixed cone (1) fixed onto a machine frame and provided with an inner conical rolling face (1-1); a movable cone (2) provided with an outer conical rolling face (2-1) and slidably positioned on a support with a spherical face (3); and a hydraulic power system driving the movement of the movable cone. The rolling face of the movable cone is encircled by the rolling face of the fixed cone and is spaced apart from the rolling face of the fixed cone by a certain rolling space. The hydraulic power system comprises several oil cylinders (7) driving the movement of the movable cone, an oil distributor (9) for controlling the sequential movement of the oil cylinders, and an oil pump (10) for supplying hydraulic oil via an oil line to the oil cylinders and the oil distributor. The several oil cylinders are positioned in a regular, radiating pattern between the movable cone and the machine frame. The cone crusher has high production efficiency, a simple structure, and a small volume, and is able to start up at full load but has infinitely variable adjustment.

Description

Cone crusher

Technical field

The invention relates to a mining machine, in particular to a crusher used for crushing stone.

Background technique

The crusher is a conventional mining machine used to crush stone to the required specifications to meet the needs of mining production. The structure of the conventional cone crusher is as shown in Fig. 6: The motor 15 is driven by the belt 13 to the bevel gear pair 12, which in turn drives the eccentric bushing 11 to rotate, so that the crushing maneuvering cone 2 is moved back and forth according to the spherical support center 2-2. (Conical swing), the rolling of the stone between the moving cone rolling surface 2-1 and the fixed cone rolling surface 1-1, so that the volume of the stone is reduced to the required size.

The defects of this kind of mechanism are: 1. The finishing of the frame is complicated, and the assembly precision is high. 2. Due to the restriction of the rotating set of the eccentric sleeve, the moving frequency of the moving cone is limited (250-350/min), thus affecting the output. 3. The existence of the eccentric sleeve causes the vibration of the equipment, affecting the service life of the components; 4. The radial load of the rotating pair of the eccentric sleeve is large, causing serious heat generation, resulting in a complicated structure of the lubrication cooling system (occupying power 7.5-15KW) ); and larger size, higher product cost.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the deficiencies in the above background art and to provide an improvement of a cone crusher which has the characteristics of high production efficiency, simple structure, small volume, and can be fully loaded and steplessly adjusted.

The technical solution adopted by the invention is: a cone crusher comprising a fixed cone having an inner conical rolling surface and fixed on the frame, an outer conical rolling surface and slidably positioned on a spherical surface a moving cone on the support and a hydraulic power system for driving the moving cone; the rolling surface of the moving cone is surrounded by the rolling surface of the fixed cone and maintains a certain rolling pitch with the rolling surface of the fixed cone; The utility model is characterized in that the hydraulic power system comprises a plurality of oil cylinders for pushing the movement of the moving cone, an oil distributor for controlling the movement of the oil cylinders, and an oil pump for conveying the hydraulic oil to the oil cylinder and the oil distributor through the oil passage, the plurality of Cylinder is emitting The shape is regularly positioned between the moving cone and the frame.

One end of each cylinder is fixedly connected to the frame or fixedly connected to the moving cone, and the other end slidably presses the surface of the moving cone or presses against the surface of the frame with a slider connected through the ball joint.

The angle R of the axis of each of the cylinders to the axis of the fixed cone is 0-90 degrees.

The cylinders are regularly arranged in one or more layers in the axial direction of the fixed cone.

The top end of the spherical support is a spherical surface, the center of the ball is located on the upper side of the spherical surface, the center line of the spherical support is vertically arranged and coaxial with the axis of the fixed cone; the moving cone is sleeved on the top end of the spherical support, and the bottom end thereof The center is a spherical surface that fits the tip end surface of the spherical support and is slidably pressed against the tip end surface of the spherical support.

The top end surface of the spherical support is provided with a lubricating sheet which is favorable for sliding.

The working principle of the invention is: after the equipment is powered on, the oil pump supplies different power oil pressures to the cylinders through the oil distributor according to the set sequence and frequency (the oil is supplied and returned to the oil cylinders respectively), and the resultant force is formed. Pushing the moving cone around the spherical support center to perform circular rolling cyclically (the slider connected by the ball joint applies both thrust to the moving cone surface or the frame surface, and a certain amount of sliding between the moving cone surface or the frame surface ), which in turn allows the crusher to obtain the mechanical motion required for the crushing operation.

The beneficial effects of the present invention are: The present invention has the following significant advantages due to the use of a full hydraulic transmission:

1. The moving frequency of the moving cone is greatly improved (up to 550 times per minute), and the crusher output can be increased by 70%; and the moving frequency and moving cone stroke can realize stepless variables and remote control;

2. The original high-speed rotating pair is eliminated, which simplifies the lubrication and cooling system and reduces the consumption of the lubrication and cooling system (only 1.5-3.0KW);

3, simple structure, reduced volume, easy to achieve modular, integrated design;

4, with strong overload protection, can achieve full load start.

DRAWINGS BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic front view showing the mechanical portion of the present invention.

Figure 2 is a schematic cross-sectional view of the A-A of Figure 1.

Fig. 3 is a schematic structural view of a power system in the present invention.

Figure 4 is a schematic view showing the positional relationship between the axis of each cylinder and the center line of the spherical support in the present invention. Fig. 5 is a second schematic view showing the positional relationship between the axis of each cylinder and the center line of the spherical support in the present invention. Fig. 6 is a front view showing the structure of a conventional crusher.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. In the cone crusher, the fixed cone 1 is fixed on the frame 6, and the inner conical rolling surface 1-1 is formed on the fixed cone; the outer conical rolling surface 2-1 is formed on the moving cone 2, The spherical support 3 (the spherical support is fixed on the frame) is slidably positioned; it can be seen that: the top end surface of the spherical support is a spherical surface, the center 2-2 of the spherical surface is located on the upper side of the spherical surface, and the center line of the spherical support is vertically arranged. And the axis of the fixed cone is coaxial; the moving cone is sleeved on the spherical support, and the center of the bottom end is formed into a spherical surface suitable for the top end surface of the spherical support (the spherical center of the spherical surface and the spherical center 2-2) Coincident), and maintains a slidable anastomosis with the top end surface of the spherical support (slidably pressed against the top end surface of the spherical support); the top end surface of the spherical support is also provided with a lubricating lug 5 for sliding (usually advantageous for a sliding copper piece); the rolling surface 2-1 of the moving cone is surrounded by the rolling surface 1-1 of the fixed cone, and maintains a certain rolling pitch with the rolling surface of the fixed cone (the spacing is determined according to the size Request to determine). In addition, there is a power mechanism that drives the aforementioned moving cone motion. The above structure is the same as that of the existing crusher.

The improvement of the invention is: the power mechanism adopts a hydraulic power system; in the hydraulic power system, a plurality of oil cylinders 7 directly push the moving cone movement, and the oil distributor 9 communicates with the oil cylinders through the oil passage to control the movement of the oil cylinders. (the oil distributor realizes the control of the movement of the oil cylinder by sequentially supplying oil or oil to each cylinder in sequence), and also providing an oil pump 10 for conveying hydraulic oil through the oil passage (or oil pipe);

a number of cylinders (6 cylinders are shown in the figure; the number can also be determined as needed) Radially and regularly positioned between the moving cone and the frame, and regularly arranged in one or more layers in a plane perpendicular to the axis 2-3 of the fixed cone (all the cylinders in Figure 1 are regularly arranged in alignment with the fixed cone axis) The same layer is vertically; all the cylinders in Fig. 4 are divided into two layers, and the upper cylinder axis 7-2 and the lower cylinder axis 7-1 are both located in a plane perpendicular to the fixed cone axis and spaced apart from each other by a distance).

As another mounting manner (as shown in FIG. 5), the axis 7-3 of each cylinder forms a certain angle R with the axis 2-3 of the fixed cone; generally the angle R is 0 degrees - 90 degrees, and the recommended angle is 90 degrees.

One of the cylinders is fixedly connected to the frame or fixedly connected to the moving cone, and the other end is slidably pressed against the slider 4 (also referred to as "shoe") connected through the ball joint 8. The surface of the cone is pressed against the surface of the frame; specifically, the cylinders of the cylinders are respectively fixedly connected to the frame or the moving cone, and the piston rods (or the plunger rods) of the cylinders are respectively connected by the ball joints. Slidably pressing the surface of the moving cone or the surface of the frame; or, the piston rods (or plunger rods) of each cylinder are respectively fixedly connected with the frame or the moving cone, and the cylinders of the respective cylinders are respectively connected by the ball joint The slider slidably presses against the surface of the moving cone or the surface of the frame. Obviously, the working surface of the slider and the moving cone surface or the surface of the frame needs to be filled with proper lubricating oil to ensure normal operation.

In addition, as can be seen from the figure: Under the control of the oil distributor, the working conditions of each cylinder are different at each moment of operation (some cylinders have high oil supply pressure, some have slightly lower oil supply pressure, and some have cylinders. Returning to the oil); in turn, the circulating cone is pushed to make a circular motion around the center of the spherical support. Specifically, the oil distributor can be set in advance as needed.

All the materials such as the oil distributor, oil pump and oil cylinder mentioned above can be directly purchased.

Claims

WO 2013/053274 Claim PCT/CN2012/081377

1. A cone crusher comprising a fixed cone (1) having an inner conical rolling surface (1-1) and fixed to the frame, and an outer conical rolling surface (2-1) and a moving cone (2) slidably positioned on a spherical support (3) and a hydraulic power system for driving the moving cone; the rolling surface of the moving cone is surrounded by a rolling surface of a fixed cone The rolling surface of the cone maintains a certain rolling pitch; the hydraulic power system includes a plurality of cylinders (7) for pushing the moving cone, an oil distributor (9) for controlling the sequential movement of the cylinders, and an oil passing through The oil pump (10) for conveying hydraulic oil to the above cylinder and the oil distributor is arranged radially and regularly between the moving cone and the frame.

2. The cone crusher according to claim 1, wherein: one end of each cylinder is fixedly connected to the frame or fixedly connected to the moving cone, and the other end is connected to the sliding through the ball joint (8). The block (4) slidably presses against the surface of the moving cone or against the surface of the frame.

The cone crusher according to claim 2, wherein an angle (R) between an axis of each of the cylinders and an axis of the fixed cone is 0 to 90 degrees.

The cone crusher according to claim 3, wherein each of the cylinders is regularly arranged in one or two or more layers in the axial direction of the fixed cone.

The cone crusher according to claim 4, wherein: the top end of the spherical support (3) is a spherical surface, and the center of the sphere (2-2) is located on the upper side of the spherical surface, and the center line of the spherical surface is vertical. Straightly arranged and coaxial with the axis (2-3) of the fixed cone; the moving cone (2) is sleeved on the top end of the spherical support, and the center of the bottom end is a spherical surface suitable for the top end surface of the spherical support and slidably The top is pressed against the top end face of the spherical support.

The cone crusher according to claim 5, characterized in that: the top end surface of the spherical support is provided with a lubricating sheet (5) which is favorable for sliding.