RU164527U1 - CRUSHING AND CONTRACTING UNIT - Google Patents

Abstract

A crushing and contracting unit containing a jaw crusher and a contracting unit, a jaw crusher contains a welded body, a base with a fixed cheek, a connecting rod with a movable cheek, a removable hopper, an unloading funnel, an electric motor, an adjusting device containing a threaded sleeve, a rod, a flywheel, and a contractile unit contains a frame with racks, a plate, a gear motor that imparts rotation through the shaft to a sampler with five trays, a cover, characterized in that the jaw crusher and contractile unit are made with a section housings and drives, while the jaw crusher is fixed to the contractile assembly with screws, the adjustment device is placed on the front wall of the housing, linings are installed on the internal surfaces of the housing, the upper edges of the trays are latched together, shock absorbers are installed on the frame racks, in addition, an end a micro switch installed inside the frame in the area of the cover fastening, a control panel with a thermal relay, a shear pin of the adjusting device.

Description

Crushing and contracting unit (DSA) is intended for crushing and reducing samples of rocks and ores in preparation for analytical studies.

DSA is laboratory-grade equipment that is used in various industries, including: mining, metallurgy, construction and pharmaceuticals, as well as for experimental work in universities and research institutes.

There are various technical solutions in this area.

So, it is known the invention RU No. 2406571 (IPC V02C 19/00, published. 20.12.2010). The crushing and grinding unit is characterized in that it contains hollow volumetric cylinders vertically arranged one above the other with a technological gap, which are made in the form of pins, forming a common working chamber for crushing and grinding, and are installed with the possibility of unbalanced rotation about the vertical axis. The side wall of each pintle is made with through holes through which crushing work elements, adjustable towards the center of the working chamber, are passed. The inner side surface of each pintle is made with vertically located caverns.

The closest set of essential features to the proposed utility model is the DSA (see link http://boezgrt.com/index.php?option=com_content&task=view&id=23&Itemid=36), which is selected as a prototype. DSA is intended for crushing and grinding of geological samples, rocks and ores with a grain size of not more than 70 mm, weighing 1-50 kg in preparation for analytical studies.

The main disadvantages of the known solution, compared with the proposed solution:

- there are no clamps of samplers;

- small volume of samplers;

- there is no thermal relay in the control system of the DSA and the limit switch on the cover of the contractor;

- there are no shock absorbers;

- there is no pin to protect the crusher from getting an indestructible body;

- there are no armor of the ShchD case;

- the complexity of adjusting the gap between the cheeks of the shield.

The objective of the proposed utility model is to create a crushing and contracting unit with improved characteristics, due to which the disadvantages of the known structures will be eliminated.

The technical result of the proposed utility model is to improve the characteristics of the crushing and contracting unit.

The technical result is achieved in that in the crushing and contracting unit containing the jaw crusher and the contracting unit, the jaw crusher comprises a welded body, a base with a fixed cheek, a connecting rod with a movable cheek, a removable hopper, a discharge funnel, an electric motor, an adjusting device containing a threaded sleeve, stock, flywheel. The contracting unit contains a frame with racks, a plate, a gear motor, which rotates the sampler with five trays through the shaft, a cover, according to a utility model, a jaw crusher and a contracting unit are made with separate housings and drives, while the jaw crusher is fixed to the contracting unit with screws. The adjusting device is placed on the front wall of the housing. Lining is installed on the inner surfaces of the case, the upper edges of the trays are interconnected by latches, shock absorbers are installed on the frame racks. In addition, an end microswitch installed inside the frame in the area of the cover fastening, a control panel with a thermal relay, a shear pin of the adjusting device are additionally introduced.

The essence of the proposed utility model is illustrated in FIG. 1, which presents the proposed DSA, where:

1 - housing;

2 - hopper;

3 - electric motor;

4 - frame;

5 - plate;

6 - shock absorber;

7 - trays;

8 - cover;

9 - screw;

10 - adjusting device;

11 - end microswitch;

12 - base;

13 - motionless cheek;

14 - a rod;

15 - movable cheek;

16 - discharge funnel;

17 - gear motor;

18 - shaft;

19 - sampler;

20 - lining;

21 - latch;

22 - threaded sleeve;

23 - stock;

24 - handwheel;

25 - shear pin;

26 - crushing zone.

DSA contains ShchD and SA, ShchTs fix on SA with screws 9.

The SHD contains a welded housing 1, a base 12 with a fixed cheek 13, a connecting rod 14 with a movable cheek 15, a removable hopper 2 for loading material, an unloading funnel 16, an electric motor 3, an adjusting device 10 containing a threaded sleeve 22, a rod 23, a flywheel 24 .

CA contains a frame 4, which is a welded structure with racks, plate 5, a gear motor 17, which imparts rotation through the shaft 18 to the sampler 19 with five trays 7, a cover 8, restricting access to the trays 7.

The adjusting device 10 is placed on the front wall of the housing 1, which simplifies access to it.

Additionally introduced a control panel with a thermal relay.

The shear pin 25 of the adjusting device 10 protects the TTSC from damage when it gets into the crushing zone 26 of an unbreakable body.

The handwheel 24 provides the convenience of adjusting the gap between the cheeks without the use of a special tool.

On the inner surfaces of the housing 1 (in the crushing zone 26), linings 20 are installed that protect the walls of the housing from wear.

The upper edges of the trays 7 are interconnected by latches 21, eliminating the spillage of material between the trays 7, and also increased the height of the trays, which increases the maximum volume of the reduced sample.

Three trays have the same volume - 1/4 of the original sample. Two trays have a volume of 1/8 of the original sample.

On the racks of the frame 4, shock absorbers 6 are installed, designed to reduce vibration transmitted by the supporting surface.

Inside the frame 4 in the area of attachment of the cover 8, an end microswitch 11 is installed, which stops the DSA when opening the cover 8 during operation.

Advantages of the proposed utility model over well-known solutions:

1. The transfer of the adjusting device from the inner cavity of the crusher to the front wall, which provides the convenience of adjusting the gap between the cheeks.

2. Insertion of a shear pin into the adjusting unit, which protects the crusher from breakdowns when an invisible body enters the crushing zone.

3. Installation of linings on the inner surface of the walls of the ShchD housing, which increases the life of the crusher and reduces the contamination of samples with metal.

4. An increase in the volume of trays, which increases the maximum volume of the reduced sample.

5. The introduction of latches on the trays, which eliminates the spillage of sample particles between the trays, which, in turn, increases the representativeness of the reduced sample.

6. Installing shock absorbers on the base racks, which reduces the vibration transmitted to the supporting surface from the SA.

7. Introduction of the end microswitch, which ensures the safety of the DSA operation.

8. The introduction of a thermal relay in the control system, which protects the electric motor and gear motor from current overload.

Thus, the proposed crushing and contracting unit has improved characteristics, compared with known designs.

Claims (1)

A crushing and contracting unit containing a jaw crusher and a contracting unit, a jaw crusher contains a welded body, a base with a fixed cheek, a connecting rod with a movable cheek, a removable hopper, an unloading funnel, an electric motor, an adjusting device containing a threaded sleeve, a rod, a flywheel, and a contractile unit contains a frame with racks, a plate, a gear motor that imparts rotation through the shaft to a sampler with five trays, a cover, characterized in that the jaw crusher and contractile unit are made with a section housings and drives, while the jaw crusher is fixed on the contractile assembly with screws, the adjustment device is placed on the front wall of the housing, linings are installed on the internal surfaces of the housing, the upper edges of the trays are latched together, shock absorbers are installed on the frame racks, in addition, an end a micro switch installed inside the frame in the area of the cover fastening, a control panel with a thermal relay, a shear pin of the adjusting device.

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