CN106111263B - A kind of novel tup for reversible hammer mill - Google Patents

Abstract

The invention discloses a new hammer head for a reversible hammer crusher, which includes a hammer handle, the hammer handle includes a hollow disc, and the outer circle of the hollow disc is uniformly distributed with three bosses, so The outer end surface of the boss is provided with a radial connecting hole, one of the connecting holes of the boss is inserted into the first connecting rod, and is fastened by a bolt assembly; the other two connecting holes of the boss are inserted into the second connecting rod, and The bolt assembly is fastened; the other end of the first connecting rod is inlaid with a main hammer body made of a wear-resistant material; the other end of the second connecting rod is inlaid with a secondary hammer body made of a wear-resistant material. In the prior art, the hammer head has only one chance to collide with the material during one rotation of the rotor body, but the present invention adds two auxiliary hammer bodies to improve the crushing efficiency; the hammer body of the hammer head is made of wear-resistant materials, and the working surface has sufficient resistance The handle and connecting rod of the hammer head are made of medium carbon steel, which has sufficient strength and toughness, and overcomes the shortcomings of making the hammer head from a single material.

Description

A New Hammerhead for Reversible Hammer Crusher

technical field

The present invention relates to a new type of hammerhead for a reversible hammer crusher.

Background technique

Reversible hammer crusher is one of the main equipments for finely crushing limestone, coal or other brittle materials below medium hardness in metallurgy, building materials, chemical industry, hydropower and other industrial sectors. It has the characteristics of advanced structure, reliable performance, stable operation, large crushing ratio, high production capacity, uniform product size and low energy consumption. There are two types of hammer crushers: reversible and irreversible. The rotor of the reversible hammer crusher is reversible and is generally used for fine crushing; the rotor of the irreversible hammer crusher is irreversible and generally used for secondary crushing. After the machine has been used for a period of time, the working side of the hammer head has been worn out, and the lining plate and grate on the rotor side are also worn to a certain extent. At this time, the motor can be stopped and the motor reversed, the rotor reversed, and the unworn side of the hammer head becomes working face, and use the unworn grate and liner on the other side. Once installed, the hammer head can be used on both sides, reducing installation time and improving work efficiency. However, there are still technical deficiencies in the existing hammer head, for example, there is only one chance to collide with the material during one revolution, the idle time is long, and the crushing efficiency is low.

Contents of the invention

In order to solve the above problems, the present invention provides a new hammerhead for a reversible hammer crusher.

The technical solution adopted by the present invention to solve the technical problem is: a new type of hammer head for a reversible hammer crusher, including a hammer handle, the hammer handle includes a hollow disc, and the outer circle of the hollow disc Three bosses are evenly distributed, and the outer end surface of the bosses is provided with a radial connection hole, one of the bosses is inserted into the first connecting rod in the radial connection hole, and is fastened by a bolt assembly; the other two bosses The radial connection hole is inserted into the second connecting rod and fastened by a bolt assembly; the other end of the first connecting rod is cast with a main hammer body made of wear-resistant material; the other end of the second connecting rod is cast with The wear-resistant material is the auxiliary hammer body of the base body; the outer contours of the main hammer body and the auxiliary hammer body are trapezoidal or conical.

Further, the length of the first connecting rod is greater than the length of the second connecting rod.

Further, the volume of the main hammer body is larger than that of the auxiliary hammer body.

Further, the casting part of the first connecting rod and the main hammer body is provided with two circular through holes, the diameter of the circular through holes varies between 15-20mm, and the distance between the two holes varies between 30-40mm.

Further, the casting part of the second connecting rod and the auxiliary hammer body is provided with a round through hole, and the diameter of the round through hole varies between 15-20 mm.

Further, the cross section of the first connecting rod or the second connecting rod is circular.

The beneficial effects of the present invention are: the hammer head is hinged on the pin shaft of the rotor body, since the length of the first connecting rod is greater than the length of the second connecting rod, an effective striking moment can be formed, and the hammer head is equivalent to an increase in the normal hammer head. Two auxiliary hammer heads are added to increase the weight of the hammer head, and the weight of the hammer head is proportional to the striking force, which can crush materials with large particle sizes; in the prior art, the hammer head has only one chance to collide with the material during one revolution of the rotor body , and the present invention adds two auxiliary hammer heads, which is equivalent to two more chances to collide with the material, that is to say, not only the main hammer head collides with the material, but also the two auxiliary hammer heads collide with the material in sequence, which improves the crushing efficiency. Efficiency; a round through hole is drilled on the connecting rod, which is equivalent to a pin connecting the hammer head with wear-resistant material as a matrix, so that the metallurgical combination of the two is more tightened; the hammer body of the hammer head is made of high manganese steel, Wear-resistant materials such as high chromium cast iron, the working surface has sufficient wear resistance, and the handle and connecting rod of the hammer head are made of medium carbon steel, which has sufficient strength and toughness, and achieves a good combination of hardness and toughness, overcoming the need for single material production. The disadvantage of the hammer head improves the utilization rate of materials. The connecting rod and the hammer handle are connected by a bolt assembly, only the worn hammer body needs to be replaced, and the hammer handle can be used for a long time, which greatly improves the material utilization rate, reduces the use cost, and improves the economic efficiency.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing is the structural representation of the present invention.

Detailed ways

As shown in the figure, a new type of hammer head for reversible hammer crushers includes a hammer handle 4, and the hammer handle 4 includes a hollow disc, and the outer circle of the hollow disc is evenly distributed with three bosses , the outer end surface of the boss is provided with radial connection holes, one of the radial connection holes of the boss is inserted into the first connecting rod 2, and is fastened by the bolt assembly 3; the other two radial connection holes of the boss The second connecting rod 5 is inserted and fastened by the bolt assembly 3; the other end of the first connecting rod 2 is inlaid with the main hammer body 1 with a wear-resistant material as the matrix; the other end of the second connecting rod 5 is inlaid and cast The auxiliary hammer body 6 is based on wear-resistant material; the outer contours of the main hammer body 1 and the auxiliary hammer body 6 are trapezoidal or conical.

The length of the first connecting rod 2 is longer than that of the second connecting rod 5, and the volume of the main hammer body 1 is larger than that of the auxiliary hammer body 6, so as to form an effective striking moment.

The casting part of the first connecting rod 2 and the main hammer body 1 is provided with two round through holes, the diameter of the round through holes varies between 15-20mm, and the distance between the two holes varies between 30-40mm.

The casting part of the second connecting rod 5 and the auxiliary hammer body 6 is provided with a round through hole, and the diameter of the round through hole varies between 15-20 mm.

The cross section of the first connecting rod 2 or the second connecting rod 5 is circular, which is convenient for matching with the connecting hole on the boss.

The hammer handle is cast from medium carbon steel with high strength and good toughness, the connecting rod is forged from medium carbon steel, and the main and auxiliary hammer bodies are made of high manganese steel or high chromium cast iron with high hardness and good wear resistance.

Put the first connecting rod or the second connecting rod into the lost foam, and pour high manganese steel solution or high chromium cast iron solution to make the two metallurgically bonded. A round through hole is drilled on the first connecting rod and the second connecting rod, which is equivalent to the pin connecting the wear-resistant material based on high manganese steel or high chromium cast iron and the connecting rod, making the metallurgical combination of the two more tightly Solid, effectively prevent the wear-resistant material from falling off.

Working principle: When the main hammer body turns to the upper part of the vertical position, hits the material, and after rotating 120°, the auxiliary hammer body turns to the upper part of the vertical position, hits the material, and then rotates 120°, the other auxiliary hammer body turns to the vertical The upper part of the position, colliding with the material. That is to say, there are three hammer bodies colliding with the material within 360°, while the hammer head in the prior art can only collide once, which is equivalent to improving the crushing efficiency by three times.

The hammer head is hinged on the pin shaft of the rotor body. Since the length of the first connecting rod is greater than the length of the second connecting rod, an effective striking moment can be formed. The hammer head is equivalent to adding two auxiliary hammer heads to the ordinary hammer head. The weight of the hammer head is increased, and the weight of the hammer head is proportional to the striking force, which can crush materials with large particle size.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (1)

1. A novel hammerhead for a reversible hammer crusher, comprising a hammer handle, characterized in that: the hammer handle comprises a hollow disc, and the outer circle of the hollow disc is evenly distributed with three bosses, The outer end surface of the boss is provided with a radial connection hole, one of the radial connection holes of the boss is inserted into the first connecting rod, and is fastened by a bolt assembly; the radial connection holes of the other two bosses are inserted into The second connecting rod is fastened by a bolt assembly; the other end of the first connecting rod is inlaid with a main hammer body with a wear-resistant material as the matrix; the other end of the second connecting rod is inlaid with a wear-resistant material as the matrix The auxiliary hammer body; the outer contour of the main hammer body and the auxiliary hammer body is a trapezoidal body or a truncated cone; the length of the first connecting rod is greater than the length of the second connecting rod; the volume of the main hammer body is greater than the volume of the auxiliary hammer body; The cross-section of the first connecting rod or the second connecting rod is circular; the casting part of the first connecting rod and the main hammer body is provided with two round through holes, and the diameter of the round through holes is between 15-20mm The distance between the two holes is changed between 30-40mm; the casting part of the second connecting rod and the auxiliary hammer body is provided with a round through hole, and the diameter of the round through hole is changed between 15-20mm.