JPH0624751U - Crushing unit - Google Patents

Abstract

(57) [Summary] [Purpose] When processing materials mixed with soft materials, a "crushing unit" was used to screen good quality crushed products by sieving with a fixed grid. The purpose is to provide. [Composition] A crushing unit in which a crusher is mounted on a cradle equipped with a crawler, a material hopper for supplying a material is connected to a supply port of the crusher, and one end of the material hopper is opened to the supply port. , The other end forms a material loading port, and the loading port and the upper part of the material hopper are opened,
The bottom surface of the material hopper is provided with a fixed grid for sieving the material in a direction from the loading port to the supply port, and the lower part of the crusher is a crushed product of the crusher and fixed in the longitudinal direction of the gantry. The present invention is characterized in that a conveying means is provided for conveying sieving products of the lattice.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a crushing unit in which a crusher is mounted on a stand equipped with a crawler and is movable by itself.

[0002]

[Prior art]

 Conventionally, as a crushing unit, a crusher, an engine generator that supplies power to the crusher drive motor, and an electric conveyor that conveys the crushed product of the crusher are mounted on a platform equipped with crawlers to crush materials. In addition, a movable crushing unit and a crushing unit in which a crusher is driven by an engine and a conveyor or the like is driven by a hydraulic device driven by the engine are known. 63-77553).

As a crushing unit of this type, the crushing unit is moved to a required position by self-propelled in response to a change in stone quality or the like accompanying the progress of development of a face, and then a material such as an aggregate raw material is moved. The product is supplied to a crusher and crushed to obtain a crushed product.

[0004]

[Problems to be solved by the device]

 However, the above-mentioned conventional configuration does not break the crushing unit of the crushing unit as it is, even if the material is mixed with the topsoil and scraps due to the change of the stone quality of the mined material due to the condition of the face. When the crusher is supplied to the crusher for crushing, surface soil and scratches may adhere to the crushing chamber of the crusher, which may hinder the smooth operation of the crusher. This is not preferable because it may damage the crusher, such as a decrease in production volume or a packing phenomenon.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to mount a grizzly feeder or the like having a large weight structure on a crushing unit that can move by itself. In addition to reducing the size and weight of the crushing unit, the soft material such as topsoil and scrap is removed by sieving and then the mined material is supplied to the crusher, so that the mined material can be used under any conditions. It is to provide a crushing unit that can smoothly operate even if it is a thing.

[0006]

[Means for Solving the Problems]

 According to the present invention, there is provided a crushing unit in which a crusher is mounted on a cradle equipped with a crawler, a material hopper for supplying a material is connected to a supply port of the crusher, and one end of the material hopper is Open to the supply port, the other end forms a material loading port, the upper part and loading port of the material hopper are opened, and a fixed grid for sieving the material is provided on the bottom part of the material hopper. In addition to having the supply port oriented from the loading port, the lower part of the crusher was provided with a transporting means for transporting the crushed product of the crusher and the vulgar product of the fixed grid in the longitudinal direction of the gantry. It is characterized by that.

[0007]

[Action]

 With the above configuration, soft materials such as topsoil and scraps mixed in the material are loaded into the material hopper by heavy equipment such as power shovels and wheel loaders, and the action of gravity at the time of loading and the crusher side by the heavy equipment. The material is separated by sieving by the fixed grid provided on the bottom of the material hopper by the extrusion operation of the hopper, and the good quality material, which is a fine sieve, is extruded and supplied from the fixed grid to the supply port of the crusher by the extrusion operation with a heavy machine such as an excavator. Crushing is carried out to secure smooth operation. The transportation means provided at the bottom of the crusher conveys the crushed product of the crusher and the sieved product of the fixed grid to the next process, and the subsequent preparation is performed to produce a high quality aggregate product. Since the grizzly feeder and the like are not mounted on the crushing unit, the crushing unit can be made compact and lightweight.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a crushing unit showing an embodiment of the present invention, FIG. 2 is a sectional view of a fixed grid of the crushing unit, and FIG. 3 is a plan view of the material hopper. 1 to 3, in the crushing unit 10, devices such as a crusher 16, a material hopper 20, a fixed grid 22, an engine unit 24, and a carrying means 28 are mounted on a frame 14 provided in the crawler 12. There is.

A clutch (not shown) is provided at the output end of the engine unit 24, and the generated power is transmitted to the crusher 16 via the pulley 30 that is the transmission means 32, the pulley 34 of the crusher 16 and the belt by connecting the clutch. It transmits and drives the fracturing element.

As the type of the crusher 16, for example, a compression type crusher such as a jaw crusher is used. A material supply port 18 is provided in the upper part of the crusher 16, and a material hopper 20 is connected to the supply port 18 and is supported by a pedestal 15 on the pedestal 14.

The material hopper 20 is surrounded by side plates 29, 29 and a rear plate 33. The rear plate 33, which is one end of the material hopper 20, has an opening corresponding to the supply port 18, and the other end. A loading port 31 for loading a material is formed in the section, and the upper part of the material hopper 20 and the loading port 31 are opened.

The material hopper 20 is formed with an upper space 21 adjacent to the supply port 18 and an upper space 23 on the fixed grid 22. In this way, the operator of the heavy equipment such as a shovel can fully observe the upper space 23 of the fixed grid 22 and the upper space 21 from the loading port 31 side to ensure the operation of the heavy equipment. In addition, the material is loaded into the material hopper 20 and directly fed to the feed port 18 of the crusher 16. A fixed grid 22 is attached to the bottom surface of the material hopper 20 by means not shown.

As shown in FIG. 2, the fixed grid 22 includes a plurality of grid rods 25 having a T-shaped cross section and a connecting member 27 is used to form a gap G between the grid rods 25. In addition, they are connected to each other without fail. The arrangement direction of the fixed grids 22 is set so that the fixed grids 22 are directed from the loading port 31 to the supply port 18, that is, from the operating position of heavy equipment such as excavators to the supply port 18 side of the crusher 16. ing.

At the lower part of the crusher 16, a conveying means 28, such as a belt conveyor, is provided in the longitudinal direction of the gantry 14. The discharge port 35 at the bottom of the crusher 16 faces the conveying means 28 via the skirt 36, and the bottom opening of the lower hopper 38 of the fixed grid 22 faces the conveying means 28 via the skirt 40. The crushed products of the crusher 16 and the sieving products of the fixed grid 22 are carried to the next process by the common carrying means 28.

Next, when the material is supplied from the supply port 18 of the crusher 16 and the material is a good quality material with little mixing of soft material such as topsoil and slip, the material is shovel or the like. The material loaded into the bucket by the heavy machine is directly supplied from the supply port 18 by being discharged into the space 21 due to the bucket tilt and the like, and is crushed by the crusher 16 to be a crushed product. In some cases, the material loaded into the bucket is discharged into the space 23 by tilting the bucket or the like. The discharged material is sieved by the fixed grid 22 when it is moved to the supply port 18 side by gravity falling from the bucket or by the pushing operation of the bucket, and the good quality material which is a fine sieve is pushed by the crushing machine 16 by the pushing operation. The soft material, which is a sieve vulgarity, is supplied to the supply port 18 and crushed into a crushed product, while the soft material, which is a sieving vulgar product, passes through the gaps of the fixed grid 22 and is dropped into the lower hopper 38, and the crushed product of the crusher 16 and the fixed grid. As described above, the sieving product of No. 22 is conveyed to the next step or the like by the common conveying means 28, and subsequently prepared by means not shown.

In this way, even if the properties of the mined material such as stone quality change, the crushing machine 16 is substantially supplied with only good quality material and crushed. Smooth operation is performed, and as a result, stable production is ensured and damage to the crusher 16 and the like can be avoided. Moreover, it is possible to avoid installing a grizzly feeder or the like, which has a large and heavy structure and applies a large vibration load to the crushing unit, separately to the crushing unit, so that the crushing unit can be made compact and lightweight. .

[0017]

[Effect of device]

 As described above, according to the present invention, a self-propelled crushing unit has a large and heavy structure, and the crushing unit can be installed without mounting a grizzly feeder or the like that gives a large vibration load to the entire crushing unit. In addition to being compact and lightweight, it has the great effect that high-quality crushed products can be obtained by sieving soft materials such as topsoil and scraps and feeding them to the crusher.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a crushing unit showing an embodiment of the present invention,

FIG. 2 is a sectional view of a main part of a fixed lattice of the crushing unit,

FIG. 3 is a plan view of the same material hopper.

[Explanation of symbols]

 10 Crushing unit 12 Crawler 14 Frame 16 Crusher 18 Supply port 20 Material hopper 22 Fixed grid 28 Conveying means 31 Loading port

Claims (1)

[Scope of utility model registration request] 1. A crushing unit in which a crusher is mounted on a cradle equipped with a crawler, and a material hopper for supplying a material is connected to a supply port of the crusher, and one end of the material hopper has the supply port. Open at the other end to form a material loading port, the upper part and the loading port of the material hopper are opened, and a fixed grid for sieving the material is loaded on the bottom part of the material hopper. A crusher characterized in that it is provided with a supply port oriented from the mouth, and that the lower part of the crusher is provided with a transport means for transporting crushed products of the crusher and sieving products of a fixed grid in the longitudinal direction of the gantry. unit.