CN202983758U

CN202983758U - Four-roller crusher

Info

Publication number: CN202983758U
Application number: CN2012202769202U
Authority: CN
Inventors: 李齐家; 杨锦宇; 李矩
Original assignee: GUANGDONG JUDA HEAVY MACHINERY CO Ltd
Current assignee: GUANGDONG JUDA HEAVY MACHINERY CO Ltd
Priority date: 2012-06-12
Filing date: 2012-06-12
Publication date: 2013-06-12
Anticipated expiration: 2022-06-12

Abstract

The utility model discloses a four-roller crusher, comprising a left rack and a right rack, wherein a pair of rollers are installed on the upper and the lower of the left rack and the right rack respectively; each pair of rollers comprise a drive roller and a driven roller, the rollers comprises an upper drive roller, an upper driven roller, a lower drive roller and a lower driven roller, an upper drive electric motor is connected to a speed reducer by a shaft coupling to drive the upper drive roller, and a large-wedge belt wheel on the other end of the upper drive roller drives the lower driven roller by a wedge belt; a lower drive electric motor is connected to a speed reducer by a shaft coupling to drive the lower drive roller, and a small-wedge belt wheel on the other end of the lower drive roller drives the upper driven roller by a wedge belt. Compared the prior art, the four-roller crusher of the utility model crushes material by the upper and the lower two pairs of rollers, to make the material have uniform and small granule size.

Description

A kind of four-roller crusher

Technical field

The utility model relates to field of cracking machine, exactly refers to a kind of four-roller crusher.

Background technology

The mine crushing owner will carry out fragmentation to all kinds of building stones, different according to the principle of fragmentation from product particle varies in size, and is divided into again a lot of models.Disintegrating machine is widely used in numerous departments such as mine, smelting, building materials, highway, railway, water conservancy and chemical industry.Crushing mechanism at present commonly used has jaw crusher, impact breaker, impacting vertical crusher, hydro cone-crusher, ring hammer crusher, hammer mill, kibbler roll, compound crusher etc.At present, when working due to the kibbler roll of prior art, the raw meal particle size of fragmentation is inhomogeneous, and granularity is larger, needs to improve.

The utility model content

For defects, the technical problem that the utility model solves is to provide a kind of four-roller crusher, and broken raw meal particle size is even, and granularity is less.

In order to solve above technical problem, the four-roller crusher that the utility model provides comprises left socle and right support, and described left and right support respectively is equipped with a pair of roller up and down; Each pair of rollers comprises drive roll and driven roll, be divided into drive roll, upper driven roll, lower drive roll and lower driven roll, its transmission group becomes upper active motor and connects reductor by shaft coupling and drive drive roll, driven roll under the large wedge belt wheel of the other end of upper drive roll drives by the wedge band; Lower active motor connects reductor by shaft coupling and drives lower drive roll, drives driven roll by the wedge band at the little wedge belt wheel of the other end of lower drive roll and rotates.

Preferably, described upper drive roll is arranged on the top of described support, and described lower drive roll is arranged on the bottom of described right support.

Preferably, upper drive roll and the gap between upper driven roll on described support top are 6mm-10mm.

Preferably, the lower drive roll of described support bottom and the gap between lower driven roll are 2mm-4mm.

Preferably, the radius ratio between the wedge belt wheel of the wedge belt wheel of described top a pair of roller and following a pair of roller is about 2: 1.

Preferably, described on, the bearing block two sides of lower driven roll respectively are provided with a hydraulic thrust cylinder, altogether four hydraulic cylinders.

Preferably, the hydraulic system of described hydraulic thrust cylinder is provided with the synchronous valve device.

Preferably, the roller epidermis surface build-up welding of described upper drive roll and upper driven roll has wear-resisting alloy electrode.

The four-roller crusher that the utility model provides, mainly comprise the chassis, the left and right support, each a pair of roller sections and top cover up and down, each pair of rollers comprises drive roll and driven roll, is divided into drive roll, upper driven roll, lower drive roll and lower driven roll, its transmission group become upper active motor and connect reductor by shaft coupling and drive drive roll, driven roll under the large wedge belt wheel of the other end of upper drive roll drives by the wedge band; Lower active motor connects reductor by shaft coupling and drives lower drive roll, drives driven roll by the wedge band at the little wedge belt wheel of the other end of lower drive roll and rotates, thereby guarantee that upper pair of rolls rotor speed is identical, and the rotating speed of next pair of rollers is also identical.Drive roll is fixed, driven roll is the synchronous pushing of hydraulic thrust cylinder that always is installed in its Y-axis bearing same side, thereby guarantee that the gap between a pair of roller is constant, and the gap length between two pair of rollers of up and down is different, and the gap between next pair of rollers of Gap-Ratios between upper a pair of roller is large.Compared with prior art, the four-roller crusher that the utility model provides by twice fragmentation of up and down two pair of rollers, reaches the broken purpose that raw meal particle size is even, granularity is less.

In addition, the four-roller crusher that the utility model provides, on, the bearing block two sides of lower driven roll respectively are provided with a hydraulic thrust cylinder, altogether four hydraulic cylinders; The hydraulic system of hydraulic thrust cylinder is provided with the synchronous valve device.Because hydraulic thrust cylinder has good stable characteristics, reciprocal synchronism is good.

Especially, the four-roller crusher that the utility model provides, the roller epidermis surface build-up welding of upper drive roll and upper driven roll has wear-resisting alloy electrode, can extend the service life of roller.

Description of drawings

Fig. 1 is the cross section structure schematic diagram of four-roller crusher in the utility model embodiment;

Fig. 2 is the plan structure figure of four-roller crusher in the utility model embodiment.

The specific embodiment

For those skilled in the art can understand technical scheme provided by the utility model better, set forth below in conjunction with specific embodiment.

See also Fig. 1 and Fig. 2, Fig. 1 is the cross section structure schematic diagram of four-roller crusher in the utility model embodiment; Fig. 2 is the plan structure figure of four-roller crusher in the utility model embodiment.

The four-roller crusher that the utility model embodiment provides comprises left socle 5 and right support 6, and a pair of lower roller is installed below the support of left and right, and a pair of upper roller is installed on the support of left and right; Include a lower drive roll 3 and lower driven roll 4 in lower roller, by reductor and shaft coupling driven rotary, lower drive roll 3 drives upper driven roll 1 rotation by

wedge belt wheel

31,11 to lower drive roll 3 by motor 9; Include a upper drive roll 2 and upper driven roll 1 in upper roller, by reductor and shaft coupling driven rotary, upper drive roll 2 drives lower driven roll 4 rotations by

wedge belt wheel

21,41 to upper drive roll 2 by motor 9.

The bearing block both sides of lower driven roll 4 are provided with two hydraulic thrust cylinders 8; The bearing block both sides of upper driven roll 1 are provided with two hydraulic thrust cylinders 8.The hydraulic system 7 of hydraulic thrust cylinder 8 is provided with the synchronous valve device.Gap between upper drive roll 2 and upper driven roll 1 is 8mm.Gap between lower drive roll 3 and lower driven roll 4 is 3mm.Guarantee that broken raw meal particle size is even, reach the less purpose of granularity.

The roller epidermis surface build-up welding of upper drive roll 2 and upper driven roll 1 has wear-resisting alloy electrode, can strengthen the anti-wear performance of roller, extends the service life of roller.

Compared with prior art, the four-roller crusher that the utility model provides by the second-time breakage of up and down two pair of rollers, reaches the broken purpose that raw meal particle size is even, granularity is less.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a four-roller crusher, is characterized in that, comprises left socle and right support, and described left and right support respectively is equipped with a pair of roller up and down; Each pair of rollers comprises drive roll and driven roll, be divided into drive roll, upper driven roll, lower drive roll and lower driven roll, its transmission group becomes upper active motor and connects reductor by shaft coupling and drive drive roll, driven roll under the large wedge belt wheel of the other end of upper drive roll drives by the wedge band; Lower active motor connects reductor by shaft coupling and drives lower drive roll, drives driven roll by the wedge band at the little wedge belt wheel of the other end of lower drive roll and rotates.

2. four-roller crusher according to claim 1, is characterized in that, described upper drive roll is arranged on the top of described support, and described lower drive roll is arranged on the bottom of described right support.

3. four-roller crusher according to claim 2, is characterized in that, upper drive roll and the gap between upper driven roll on described support top are 6mm-10mm.

4. four-roller crusher according to claim 3, is characterized in that, the lower drive roll of described support bottom and the gap between lower driven roll are 2mm-4mm.

5. four-roller crusher according to claim 2, is characterized in that, the radius ratio between the wedge belt wheel of described top a pair of roller and the wedge belt wheel of following a pair of roller is about 2: 1.

6. four-roller crusher according to claim 1, is characterized in that, described on, the bearing block two sides of lower driven roll respectively are provided with a hydraulic thrust cylinder, altogether four hydraulic cylinders.

7. four-roller crusher according to claim 6, is characterized in that, the hydraulic system of described hydraulic thrust cylinder is provided with the synchronous valve device.

8. four-roller crusher according to claim 1, is characterized in that, the roller epidermis surface build-up welding of described upper drive roll and upper driven roll has wear-resisting alloy electrode.