GB2072532A

GB2072532A - Stone crushing mill

Info

Publication number: GB2072532A
Application number: GB8108685A
Authority: GB
Original assignee: HAAHJEM MEKANISKE AS
Current assignee: HAAHJEM MEKANISKE AS
Priority date: 1980-03-19
Filing date: 1981-03-19
Publication date: 1981-10-07
Also published as: GB2072532B; JPS56141849A; SG1284G; JPS6034903B2; MY8500399A; PH21972A; IN154582B

Abstract

A stone crushing mill comprising in particular stone crushing unit "a", feeder "b" and electrical drive system "c" is mounted on its own base frame unit "d". The whole is adapted to be carried on a multi- axled low trailer "f" and accordingly does not require its own wheel carriage, brakes, lights, blinkers etc. The crushing mill is thus transported to the required side where it can be lifted from the trailer, e.g. by means of hydraulic jacks inserted in pockets "i" in frame "d" and then base supports "e" are pivoted downwards towards the ground to support the mill in use. The low trailer may then be released for other use. <IMAGE>

Description

SPECIFICATION Stone crushing mill The present invention relates to the construc tion of a stone crushing mill.

Progress through the years has given rise to a steady demand for larger stone crushing mills. This increase in size has led to great transportation problems due to the weight against the road surface and the large amount of space taken up by a complete stone crush ing mill.

Previously, when such units were smaller, there were no difficulties related to transport ing stone crushing mills as compiete units.

The problems one had at that time were that the wheels had to be removed and a founda tion cast for each move. Such stone crushing mills also had the disadvantage that the mov ing unit belonging to the mill had to have approved brakes, lights, blinkers, towing de vice etc. Generally the equipment had a num ber of cost increasing components which only were used when the unit was to be moved.

The large crushing mills, which have come into use in later years, have been transported in parts in order to stay within the weight limit of the roads. This has led to high costs since the mills first have to be disassembled before moving, and thereafter assembled at the new site.

The object of the present invention is in short that even large stone crushing mills can be transported fully assembled. One avoids equipment that previously had to be included in the unit for transportation and, in addition, one saves expenditure related to disassem bling and assembling at a new site.

The invention may be utilized both for larger and smaller stone crushing mills, but the greatest advantage is expected for the larger and heavier stone crushing mills.

The basic idea of the new system is that one in this connection has made use of inter alia multi-wheel-axled low trailers. Such low trailers are today widely used. They are used to transport heavy items such as bulldozers, excavators etc. Such trailers are however to day far from being utilized to the extent that they should.

According to the present invention, there is provided a mobile stone crushing mill con *struted for an individual base frame such that it by means of its own equipment can be lifted from or lowered to its transport position.

-The stone crushing mill according to the in vention is constructed for simple mobility.

The invention is illustrated, by way of exam ple, in the accompanying drawings wherein Figure 1 shows a stone crushing mill ac cording to the invention in transporting posi tion, Figure 2 shows the stone crushing mill of Fig. 1 after unloading, and Figure 3 shows the mill of Figs. 1 and 2 in operating position.

Referring first to Fig. 1 of the drawings, "f" is the heavy load carriage having a sufficient number of wheels in order to take the load.

"a" is the stone crushing unit. It is mounted on a main base "d" which extends for the entire length of the stone crushing mill.

"b" is a stone crushing feeder or screen, which here is shown in lowered position for transport. In this transport position one may for example drive through the low railroad underpasses. "c" is the electrical drive system with auxiliaries.

Fig. 2 shows the heavy load carriage after the stone mill has been unloaded and the carriage freed for new tasks.

"h" shown in Fig. 2 is a certain number of auxiliary supports (jacks, rams) which are transported as separate items and which by means of simple manipulation are pushed into the sides of the base in suitable pockets These jacks "h" may have hydraulic power connection, screwed connection, leverage or be provided with power in other ways, so that they lift the entire mill vertically. The jacks "h" may be telescopic.

When the stone crushing mill reaches the required height, the base supports "e" are pivoted down towards the ground. When the mill is being transported it rests on these supports. The supports "e" may be locked by means of auxiliary stays.

When the supports "e" are on the ground, the jacks "h" are removed.

The plant in use is shown in Fig. 3. The feeder/screen "b" is now lifted to correct position for operation. This is obtained by making the base supports "g" for the feeder/screen telescopic. The force for raising may be obtained by hydraulics, pneumatics, screwed connections or the like. When the supports and feeder/screen are in place, the supports are locked with screws so that the vertical pressure is not resting on the lifting equipment, but against the base.

"k" is a belt conveyor attached below the screen and follows the screen up and down between transport and use positions.

Fig. 3 also shows an end view of the mill where the auxiliary support (jacks) are clearly seen.

1. A mobile stone crushing mill constructed for an individual base frame such that it by means of its own equipment can be lifted from or lowered to its transport position.

2. An arrangement according to claim 1, wherein the entire stone crushing mill is transportable without its own wheel carriage and auxiliaries, but instead by being transportable on a conventional multi-axled low trailer carriage.

3. An arrangement according to claim 1

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Stone crushing mill The present invention relates to the construc tion of a stone crushing mill. Progress through the years has given rise to a steady demand for larger stone crushing mills. This increase in size has led to great transportation problems due to the weight against the road surface and the large amount of space taken up by a complete stone crush ing mill. Previously, when such units were smaller, there were no difficulties related to transport ing stone crushing mills as compiete units. The problems one had at that time were that the wheels had to be removed and a founda tion cast for each move. Such stone crushing mills also had the disadvantage that the mov ing unit belonging to the mill had to have approved brakes, lights, blinkers, towing de vice etc. Generally the equipment had a num ber of cost increasing components which only were used when the unit was to be moved. The large crushing mills, which have come into use in later years, have been transported in parts in order to stay within the weight limit of the roads. This has led to high costs since the mills first have to be disassembled before moving, and thereafter assembled at the new site. The object of the present invention is in short that even large stone crushing mills can be transported fully assembled. One avoids equipment that previously had to be included in the unit for transportation and, in addition, one saves expenditure related to disassem bling and assembling at a new site. The invention may be utilized both for larger and smaller stone crushing mills, but the greatest advantage is expected for the larger and heavier stone crushing mills. The basic idea of the new system is that one in this connection has made use of inter alia multi-wheel-axled low trailers. Such low trailers are today widely used. They are used to transport heavy items such as bulldozers, excavators etc. Such trailers are however to day far from being utilized to the extent that they should. According to the present invention, there is provided a mobile stone crushing mill con *struted for an individual base frame such that it by means of its own equipment can be lifted from or lowered to its transport position. -The stone crushing mill according to the in vention is constructed for simple mobility. The invention is illustrated, by way of exam ple, in the accompanying drawings wherein Figure 1 shows a stone crushing mill ac cording to the invention in transporting posi tion, Figure 2 shows the stone crushing mill of Fig. 1 after unloading, and Figure 3 shows the mill of Figs. 1 and 2 in operating position. Referring first to Fig. 1 of the drawings, "f" is the heavy load carriage having a sufficient number of wheels in order to take the load. "a" is the stone crushing unit. It is mounted on a main base "d" which extends for the entire length of the stone crushing mill. "b" is a stone crushing feeder or screen, which here is shown in lowered position for transport. In this transport position one may for example drive through the low railroad underpasses. "c" is the electrical drive system with auxiliaries. Fig. 2 shows the heavy load carriage after the stone mill has been unloaded and the carriage freed for new tasks. "h" shown in Fig. 2 is a certain number of auxiliary supports (jacks, rams) which are transported as separate items and which by means of simple manipulation are pushed into the sides of the base in suitable pockets These jacks "h" may have hydraulic power connection, screwed connection, leverage or be provided with power in other ways, so that they lift the entire mill vertically. The jacks "h" may be telescopic. When the stone crushing mill reaches the required height, the base supports "e" are pivoted down towards the ground. When the mill is being transported it rests on these supports. The supports "e" may be locked by means of auxiliary stays. When the supports "e" are on the ground, the jacks "h" are removed. The plant in use is shown in Fig. 3. The feeder/screen "b" is now lifted to correct position for operation. This is obtained by making the base supports "g" for the feeder/screen telescopic. The force for raising may be obtained by hydraulics, pneumatics, screwed connections or the like. When the supports and feeder/screen are in place, the supports are locked with screws so that the vertical pressure is not resting on the lifting equipment, but against the base. "k" is a belt conveyor attached below the screen and follows the screen up and down between transport and use positions. Fig. 3 also shows an end view of the mill where the auxiliary support (jacks) are clearly seen. CLAIMS

3. An arrangement according to claim 1 or 2, wherein the stone crushing mill has its own cutting equipment and base supports to be rested on the ground.

4. An arrangement according to claim 3, wherein the lifting equipment is removably mounted on the mill.

5. A stone crushing mill mounted on its own base frame and adapted to be carried on a multi-axled low trailer, the base frame having frame supports pivotally mounted thereof which in a first position support the frame on the trailer and in a second position support the frame in the operating position, and being provided with lifting means for lowering the frame on to the trailer and lifting the frame from the trailer to the operating position.

6. A stone crushing mill substantially as illustrated in and described with reference to the accompanying drawinas.