CN85202161U - Cleaning minercar remainder hydraulic machine - Google Patents

Abstract

The working part, the motor and the electric control part of the prior hydraulic cleaning machine are parted to each other, so the floor area is big and the integrity is bad. The hydraulic cleaning machine of the utility model integrates a working part, a motor and an electric control part together. A pillar (4) is composed of an oil tank an electric control box, and a hollow rocker arm (2) is supported on the supporting seat above the pillar. One end of the rocker arm (2) is provided with a lifting arm (1), and a grab bucket is fixed at the lower end of the lifting arm (1). Consequently, the utility model has the advantages of convenient installation, simple operation, good overall machine performance. The residual bottom sticky coal is lower than 1.6% of the total payload after the normal bottom sticky mine is cleaned.

Description

Cleaning minercar remainder hydraulic machine

The utility model is by the 37 page of disclosed that class descaling machine development of in 1982 the tenth first phases of China's " coal science and technology " magazine.

In order to clear up the sticking residue of being stained with of mine car in transportation coal, mineral, soil, stone and the wet cargo process, the mine car cleaning equipment is absolutely necessary.In known mine car descaling machine, the grab bucket of two and half wooden dipper shapes is directly installed on and can does on the sport car of parallel motion along crossbeam, and crossbeam can be moved up and down along portal frame by the hydraulic oil cylinder driving that is fixed on the portal frame.Grab bucket is closed up residue in the cleaning car by hydraulic oil cylinder driving.Whenever digging a shovel is 40～50 seconds, and mine car at least 3 shovels just can dig clearly.At work can't regular event for the front end that prevents to grab bucket because of causing at the bottom of the mine car of top, be attempted by with a hydraulic pressure two-port valve between the chamber, front and back of lift cylinders, when closing the bucket cleaning, the chamber, front and back of short circuit lift cylinders, make crossbeam be floating state,, make its energy regular event even grab bucket is suspended state.Grab bucket, crossbeam, sport car, portal frame, driving oil cylinder etc. constitute the work part of hydraulic punch machine, are installed in the working space of cleaning mine car, and prime power and automatically controlled part are installed in the appropriate location away from the working space, and both are by oil pipe line, cable connection.This hydraulic punch machine globality is relatively poor, and the installation floor area is big, especially is contained near the limited place of the floor area transport systems tipper exit, more influences its applicability.In addition, in order to make grab bucket (4) be suspended state, causing the way of crossbeam suspended state by the chamber, front and back of short circuit lift cylinders behind the cut-out oil sources is irrational by known theoretical analysis, also can't accomplish to impose on different downforce with bonded assembly firm degree at the bottom of the mine car according to the mine car residue, to such an extent as to run at the bottom of the harder residual knot, grab bucket is just upwards floated with crossbeam, residue can't be cleaned out, and cleaning speed is slow.

Task of the present utility model is to design one with prime power and electric cabinet, and as a whole hydraulic punch machine is partly melted in work.Thereby the minimizing floor area makes grab bucket have the pressure quick condition that keeps certain downforce simultaneously in closing up process, improves the serviceability of complete machine.

This task is resolved by following mode.Entire machine design becomes column to add the rocking arm form.Column (4) top is to be drum shape fuel tank, and the bottom is an electric cabinet, the fastening installation of holding-down bolt of the bottom of electric cabinet and ground.The column (4) that fuel tank and electric cabinet are formed is again the basic component of supporting complete machine, the rocking arm supporting base is equipped with in the fuel tank upper end, under the driving of oil motor, can center on column (4) by supporting base rocking arm (2) and do rotation in the vertical plane surface; rocking arm (2) is a hollow; the electrical motor in its chamber in the dress motility device, Hydraulic Elements (except the fuel tank) such as oil pump, hydraulic pressure valve plate, valve.A lifting arm (1) that can drive grab bucket (3) lifting is equipped with in one end of rocking arm, and grab bucket (3) connects the lower end that form is fixed on lifting arm (1) with strand, and lifting arm (1) and grab bucket (3) are by hydraulic oil cylinder driving.In order to make grab bucket (3) in closing up scale removal process, keep certain pressure to float at the bottom of grab bucket end and the mine car, the hoist cylinder that drives the grab bucket lifting adopts differential connection, the chamber, front and back of oil cylinder communicates with oil sources by the electromagnetic relief pressure valve device that has the overflow effect, lift cylinders is moved under the oily operation pressure state of the former setting of maintenance system during lifting, grabbing bucket (3) when closing up, have the electromagnetic relief pressure valve device energising of overflow effect, lift cylinders is promptly worked under through post-decompression hydraulic oil effect with certain pressure value at the oil pressure of the former setting of system, make grab bucket end that lifting arm (1) drives and keeping unsteady under the certain process stage at the bottom of the mine car, can adjust reducing valve at the bonded assembly firm degree of residue, to obtain the best value of pressing down.The oil cylinder that driving this moment grabs bucket closes up still is in the oil pressure state work down of the former setting of system.The electromagnetic relief pressure valve device that has the overflow effect directly is contained on the rocking arm of descaling machine, connects with hoist cylinder by oil pipe.In addition, on the inlet and outlet of fuel channel of two oil cylinders that drive the grab bucket action, insert a Hydraulic Synchronizing device of forming by synchronous valve, valve plate and other Hydraulic Elements, make net synchronization capability and the synchronous effect of grab bucket two oil cylinders when heavy lift is worked be improved, two grab bucket opening and closing have simultaneously avoided mine car to swing back and forth.

To compare this machine globality better with known hydraulic punch machine, be convenient to that ground is disposable installs and uses, can be directly installed on the manufacturing line and the supporting use of the electronic tipper of standard, the sticking time end of its cleaning mine car and tipper productive capacity are complementary, and have the function of three machines (car puller, tipper, descaling machine) interlock, and be convenient to centralized control, simple to operate, the residual sticking ground coal in mine car cleaning back at the normal sticking end accounts for below 1.6% of railway carriage gross deadweight, and is respond well.

An embodiment of the present utility model has been described among the figure.

Fig. 1, hydraulic punch machine front view.

Fig. 2 to Fig. 5, the working condition chart of hydraulic punch machine.

In Fig. 1, the hydraulic punch machine that is used for residue in the cleaning mine car has been described.It has a hollow rocking arm (2), is bearing on the supporting base of column (4) top of being made up of fuel tank and electric cabinet the fastening installation of holding-down bolt of the bottom of electric cabinet and ground.Rocking arm (2) inner chamber is equipped with Hydraulic Elements such as electrical motor in the motility device, oil pump, hydraulic pressure valve plate, valve.One end of rocking arm (2) is equipped with one can drive the lifting arm (1) of grab bucket (3) lifting, the lower end that grab bucket (3) is fixed on lifting arm (1).

What Fig. 2 to Fig. 5 described is the operating mode scheme drawing of the sort of hydraulic punch machine of Fig. 1.After mine car puts in place,, can realize all processes of automatic cleaning mine car by the electrical controller and the hydraulic actuator of this machine.Be that rocking arm is put to mine car top, the grab bucket that will be half open configuration is stretched in the mine car behind the certain position, and grab bucket is opened fully, with railway carriage two end in contact.Mine car automatic compensation good position, grab bucket insert along the railway carriage two ends at the bottom of the mine car shown in (Fig. 2).Grab bucket is closed up residue is cleaned out, and in closing up process, makes the grab bucket end with unsteady under the state that keeps certain downforce at the bottom of the mine car, as shown in Figure 3.Rocking arm is a rotary oscillation after mine car railway carriage mouth is left in the grab bucket lifting, as shown in Figure 4.Behind the swing certain angle position, open grab bucket residue is unloaded to railway carriage.As shown in Figure 5.

Claims (3)

1, the hydraulic punch machine of residue in the cleaning mine car, part and prime power part and automatically controlled part are formed by working.Prime power and automatically controlled part are made up of electrical motor, oil pump, hydraulic pressure valve plate, valve, fuel tank, electric cabinet.Feature of the present utility model is: work is the complete machine structure that combines together with prime power and automatically controlled part partly, hydraulic reservoir and electric cabinet are formed a column (4), hollow rocking arm (2) is bearing on the supporting base of column upper end, and Hydraulic Elements such as electrical motor in the prime power, oil pump, hydraulic pressure valve plate, valve are housed in its chamber.

2, descaling machine according to claim 1 is characterized in that: at the oil cylinder oil inlet place that drives the grab bucket lifting electromagnetic relief pressure valve composite set of carry potential overflow effect is housed.

3, descaling machine according to claim 1 is characterized in that: insert a Hydraulic Synchronizing device of being made up of synchronous valve, valve plate and other hydraulic part at two oil cylinders that drive grab bucket (3) action on oil circuit.

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