CN205008042U - Hammer crusher hammer sieve clearance adjustment device - Google Patents

Abstract

The utility model belongs to the technical field of crushing equipment, in particular to a hammer-type hammer-sieve gap adjustment device for producing high-quality sand and gravel in industries such as highways, railways, airports, cement, building materials, and metallurgy. It consists of a hammer crusher and a gap adjustment device. The hammer crusher consists of a lower body (1), an upper body (2), a rotor assembly (3), a hammer (4), a liner (5), a screen Plate (6), characterized in that the gap adjustment device is composed of a suspension bearing seat (7), an M-shaped gasket set (8), a suspension bearing seat fixing bolt (9), a suspension bearing seat pull-up screw (10 )composition. The utility model solves the disadvantages of low utilization rate of the hammer head and unstable output of the traditional hammer crusher equipment, realizes the convenience and feasibility of adjustment in a true sense, and completely solves the problem of adjusting the gap between the hammer and the screen.

Description

Hammer screen gap adjustment device for hammer crusher

technical field

The utility model belongs to the technical field of crushing equipment, in particular to a hammer-type hammer-sieve gap adjustment device for producing high-quality sand and gravel in industries such as highways, railways, airports, cement, building materials, and metallurgy.

Background technique

The currently commonly used sand and gravel hammer crushers use the impact force generated by the high-speed rotation of the hammer and the impact of the materials on the impact plate to crush the materials, and use the size of the sieve hole to control the particle size of the crushed materials. When the sieve hole is small, the number of times the material is hammered is large, and the particle size of the crushed material is small, but the productivity is low; when the sieve hole is large, the number of times the material is hammered is small, the particle size of the crushed material is large, and the productivity is high. After the crusher is used for a period of time, the hammer head is gradually worn out, the gap between the hammer head and the sieve plate will gradually increase, and the output will gradually decrease. At present, there are several ways to solve the decrease in hammerhead wear and output: 1. Replace the hammerhead with a new hammerhead. This method has a high utilization rate of the hammerhead, and the utilization rate of the hammerhead is only about 15%. 2. The hammer crusher with adjustable hammer-screen gap is designed with multiple groups of pin holes for installing the hammer head on the rotor disc of the crusher. The hammer head can obtain various hammer-screen gaps under different pin holes. When the hammer After the head is worn to a certain amount, adjust the installation position of the hammer head to ensure a reasonable gap between the hammer and the sieve, and a certain effect has been achieved. However, this hammer crusher still has some shortcomings: the manual workload is too large and the operation is complicated. 3. Hammer crusher with adjustable hammer-screen gap. The sieve plate is designed as a device that can swing or pull in a small range, and the hammer-screen gap can be adjusted by swinging or pulling the sieve plate. Theoretically, it is the most ideal and feasible, but in actual use, the sieve plate is stuck by the material, and it is difficult to achieve its purpose. 4. By setting jacking bolts on the suspension bearing seat, the bearing seat is jacked up by the force generated between the jacking screw and the lower body, so as to replace the gasket. This kind of equipment is only suitable for smaller equipment. When the equipment is larger, the jacking screw is easily bent and deformed.

Contents of the invention

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide a hammer-type crusher hammer-sieve gap adjustment device.

The utility model is achieved through the following technical solutions:

A hammer crusher hammer screen gap adjustment device, which consists of a hammer crusher and a gap adjustment device. The hammer crusher consists of a lower body (1), an upper body (2), a rotor assembly (3), Hammer (4), lining plate (5), sieve plate (6), and the gap adjustment device is composed of suspension bearing seat (7), M-shaped gasket group (8), suspension bearing seat fixing bolt (9), The suspension bearing seat is composed of a pull-up screw (10). Two suspension bearing seats are respectively installed at both ends of the rotor shaft. The suspension bearing seat is fixed on the lower body by the suspension bearing seat fixing bolt through the M-shaped gasket set. The pull-up bolt rod hole (16), the upper body is provided with a pull-up screw fixing seat (13), and the pull-up screw passes through the pull-up screw fixing seat and is connected with nut A (15) and nut B (14) respectively The pull-up screw fixing part is connected with the suspension bearing seat, and the lower end of the pull-up screw is arranged in the pull-up screw hole.

The pull-up bolt hole is provided with an internal thread corresponding to the thread on the pull-up screw.

The horizontal line (11) of the rotation center of the suspension bearing seat is parallel to or lower than the cantilever installation planes (12) on both sides of the suspension bearing seat.

Each of the M-shaped gasket groups is composed of at least one M-shaped gasket.

The thickness of the M-shaped gasket is 5-10mm.

There are four gap adjusting devices.

According to the crushing theory, the gap between the hammer and screen directly affects the output and crushing ratio of the equipment. During operation, the gap between the hammer and screen should be kept within a reasonable range, which is conducive to the stable operation of the equipment. However, due to the wear of the hammer and the screen in actual work, the gap between the hammer and the screen will gradually increase, the output will gradually decrease and the crushing ratio will decrease. In production practice, there is an urgent need for a simple and efficient mechanism to adjust the gap between hammer and screen. The purpose of reducing consumption and increasing production is achieved by means of segmented adjustment. To sum up: the utility model solves the shortcomings of the traditional hammer crusher equipment such as low utilization rate of the hammer head and unstable output.

The utility model can fundamentally solve the problems of hammer head wear, increased gap between hammer and sieve, and reduced output, and at the same time greatly improves the utilization rate of the hammer head, which can reach more than 80%, reducing the use cost. In a real sense, the adjustment is convenient and feasible, and the problem of hammer-sieve clearance adjustment is completely solved.

At the same time, since the gap is adjusted by pulling up the screw rod, it is not only suitable for small and medium-sized hammer crushers, but also more suitable for large hammer crushers, and has strong applicability.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Figure 2 is a schematic diagram of the structure of the adjustment part.

In the figure, 1-lower body, 2-upper body, 3-rotor assembly, 4-hammer, 5-liner, 6-sieve plate, 7-suspension bearing seat, 8-M-shaped gasket group, 9-suspension Bearing seat fixing bolt, 10-suspension bearing seat pull-up screw, 11-horizontal line of rotation center, 12-cantilever installation plane, 13 pull-up screw fixture, 14-nut B, 15-nut A, 16-pull-up screw hole.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

Example 1

A hammer crusher hammer screen gap adjustment device, which consists of a hammer crusher and an intermittent adjustment device. The hammer crusher consists of a lower body (1), an upper body (2), a rotor assembly (3), Hammer (4), lining plate (5), sieve plate (6), and the gap adjustment device is composed of suspension bearing seat (7), M-shaped gasket group (8), suspension bearing seat fixing bolt (9), The suspension bearing seat is composed of a pull-up screw (10). Two suspension bearing seats are respectively installed at both ends of the rotor shaft. The suspension bearing seat is fixed on the lower body by the suspension bearing seat fixing bolt through the M-shaped gasket set. The pull-up bolt rod hole (16), the upper body is provided with a pull-up screw fixing seat (13), and the pull-up screw passes through the pull-up screw fixing seat and is connected with nut A (15) and nut B (14) respectively The pull-up screw fixing seat is connected with the suspension bearing seat, and the lower end of the pull-up screw is arranged in the pull-up screw hole. An internal thread corresponding to the thread on the pull-up screw rod is provided in the pull-up bolt shank hole. The horizontal line (11) of the rotation center of the suspension bearing seat is parallel to or lower than the cantilever installation planes (12) on both sides of the suspension bearing seat. Each set of M-shaped gaskets consists of one M-shaped gasket. The thickness of the M-shaped gasket is 10mm. There are four gap adjustment devices.

The horizontal centerline (11) of the suspension bearing seat rotation is parallel to or lower than the cantilever installation plane (12) on both sides of the suspension bearing seat, the purpose of which is to sink the rotor rotation center, Get enough stability. An M-shaped gasket set (8) is added between the suspension bearing seat (7) and the lower body (1). For the convenience of adjustment, a suspension bearing seat pull-up bolt (10) is added. gasket. The overall height adjustment of the rotor is realized by increasing or decreasing the number of U-shaped spacers.

Example 2

The adjusting shim set is composed of five M-shaped shims superimposed, the thickness of each shim is 7.5 mm, and the rest is the same as that in Embodiment 1.

Example 3

The adjusting shim set is composed of 20 M-shaped shims superimposed, and the thickness of each shim is 5mm, and the rest is the same as that of embodiment 1.

When the utility model is working, the rotor shaft rotates, and the hammer impacts the material with the rotation of the turntable, and the crushed material is discharged through the sieve gap. When the wear amount of the hammer exceeds the thickness of an M-shaped gasket, you only need to loosen the fixing bolts of the suspension bearing seat after the machine is turned off, pull up the suspension bearing seat with the suspension bearing seat pull-up bolt, pull out the M-shaped gasket of the same height, and put it away. Pull up the suspension bearing seat and pull up the bolt, and tighten the suspension bearing seat fixing bolt to complete the adjustment of the hammer screen clearance. Over time, considerable economic benefits will be generated for users.

Claims (6)

1. A hammer crusher hammer screen clearance adjustment device, which consists of a hammer crusher and a clearance adjustment device. The hammer crusher consists of a lower body (1), an upper body (2), a rotor assembly (3 ), hammer (4), liner plate (5), and sieve plate (6), characterized in that the gap adjustment device consists of a suspension bearing seat (7), an M-shaped gasket set (8), a suspension bearing seat The fixing bolt (9) and the suspension bearing seat pull-up screw (10) are composed of two suspension bearing seats installed at both ends of the rotor shaft, and the suspension bearing seat is fixed on the lower body by the suspension bearing seat fixing bolt through the M-shaped gasket set. A pull-up bolt rod hole (16) is provided on the suspension bearing seat, and a pull-up screw fixing seat (13) is provided on the upper body. The pull-up screw passes through the pull-up screw fixing seat and is composed of a nut A (15) and a nut B (14) is respectively connected with the pull-up screw fixing seat and the suspension bearing seat, and the lower end of the pull-up screw is arranged in the pull-up screw hole. 2. A hammer crusher hammer screen gap adjustment device according to claim 1, characterized in that, the hole of the pull-up bolt rod is provided with an internal thread corresponding to the thread on the pull-up screw. 3. A hammer crusher hammer screen gap adjustment device according to claim 1, characterized in that the horizontal line (11) of the rotation center of the suspension bearing seat is parallel to the cantilever installation planes (12) on both sides of the suspension bearing seat Or lower than the cantilever installation plane on both sides of the suspension bearing seat. 4. A hammer crusher hammer screen gap adjustment device according to claim 1, characterized in that, each set of said M-shaped gaskets consists of at least one M-shaped gasket. 5 . The device for adjusting the clearance between the hammer screen of the hammer crusher according to claim 4 , wherein the thickness of the M-shaped gasket is 5-10 mm. 6 . A hammer crusher hammer screen gap adjustment device according to claim 1 , characterized in that there are four gap adjustment devices.