SU759424A1 - Overhead pushing conveyer - Google Patents

Description

The invention relates to the technology of transportation of products or machines in the process of their processing and assembly in mechanical engineering or other sectors of the economy.

Known outboard pusher conveyor comprising a bar pusher, soedi- ₅ nennuyu power cylinder with [1].

The disadvantage of this conveyor is that it does not have a smooth start and stop, which leads to jerks and large inertial loads. <Y

The closest known solution is a suspended pusher conveyor containing a pusher bar, a copier and a hydraulic system consisting of a hydraulic cylinder kinematically connected with a bar, a choke interacting with the copier ¹⁵ , and a control spool [2].

Known suspended sucker-rod pushing the conveyor allows you to change the speed only on certain sections of the path, usually only at the beginning and at the end of the stroke of the rod, which is used for acceleration and stop. However, this conveyor does not provide a smooth stop or boom start in an intermediate position that

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leads to a decrease in the reliability of the conveyor, as when starting and stopping the conveyor there are large inertial loads.

The aim of the invention is to improve the reliability of the conveyor by smoothly changing the speed of the rod on any segment of the path.

This goal is achieved by the fact that the conveyor is equipped with an additional hydraulic cylinder and an adjusting slide, and the copier is attached to the rod of the additional hydraulic cylinder, and the adjusting slide is hydraulically connected to the rod and rodless cavities of the additional hydraulic cylinder and to the hydraulic system. In this case, the hydraulic system is equipped with an additional throttle to increase the range of control of the speed of the rod, which is installed at the junction of the control valve with the hydraulic system.

The drawing shows schematically a conveyor, a general view.

The conveyor consists of trolleys 1, a rod 2 with pushers 3, set in motion by a power hydraulic cylinder 4 with the help of a rod 5. The supply and discharge of fluid is carried out 759424

via the two-position spool 6 control pipelines 7-10. On the drain pipe 9 is installed choke 11, interacting with the cam 12 connected to the rod 13 of the additional cylinder 14. Fluid is supplied to the additional cylinder 14 and drained through pipes 15-18, two-position adjusting slide 19 and additional choke 20. To control the adjusting slide 19 there are two track switches 21 and 22 o and two cams 23 and 24.

The work of the conveyor as follows.

Working stroke

The fluid flowing through the pipe DN 7 through the spool 6, is directed through the pipeline 8 into the hydraulic cylinder 4 and pushes the rod 5 connected to the rod 2. In this case, the “liquid filling the rod cavity of the hydraulic cylinder 4 is squeezed out by a piston through the pipeline 9 to the throttle '11. _2e in .nachale stroke rod 2 the plunger 13 of the hydraulic cylinder 14 is pulled out, the throttle passage opening 11 overlapped with the cam 12, the minimum, whereby the velocity of rod 2 is also minimal. as movement of the copier 12 and ³⁵ the plunger 13 pulled by a hydraulic cylinder 14, the capacity e throttle bore 11 increases and the speed of the rod 2 is gradually reaches maximum. The shape of the copier 12 and its speed, _{regulated? 0.} Rui throttle 20 is determined law of variation of the rod 2. The velocity at the end of the stroke rod 2 cam 23 by pressing on the sensor (switch) 21, gives the command to the adjusting valve 19, through which the liquid is fed into the pipeline 17 35

and rodless cavity of the cylinder 14. There is a movement of the rod 13 and the copier 12. The passage opening of the throttle 11 and, therefore, the speed of the rod 2 decreases. The adjusting slide 19 can also be controlled by commands from the outside, for example from a ⁴⁰ control panel.

If it is necessary to stop the conveyor at any part of the way, the spool 19 enters into operation the hydraulic cylinder 14, the associated copier 12 acts on the throttle ί 1— №

there is a smooth stop.

Subsequent start-up is the same ¹

how and at the beginning. 'tsh

The movement of the rod 2 by means of the pushers 3 is transmitted to the load-carrying carts and the transportation of products is carried out.

Idling.

Fluid through pipelines 7, 9 and 10, valve b and throttle 11 enters the rod end of cylinder 4. From the rodless cavity, the liquid is squeezed through pipelines 8 and 7 through valve 6. The rod returns to its original position.

The use of the invention allows to avoid large inertial loads that inevitably arise when starting loads without smooth acceleration and create conveyors with high speeds of moving piece (especially heavy) loads, since the possibility of smooth acceleration and stopping of the bar and loads on any part of the path does not limit the choice of speed .

Claims (2)

Claim 1. Suspended pushing conveyor containing rod with pushers, copier and hydraulic system, consisting of a power cylinder, kinematically connected with the rod, throttle, interacting with the copier, and control spool, in order to increase the speed of the rod on any part of the way, it is equipped with an additional hydraulic cylinder and an adjusting slide valve, the copier being attached to the rod of the additional hydraulic cylinder, and an adjusting slide valve hydraulically connected to the stem new and rodless cavities of an additional hydraulic cylinder and with a hydraulic system. 2. Conveyor on π. 1, characterized in that the hydraulic system is equipped with an additional throttle to increase the range of speed control rod, which is installed at the junction of the adjusting valve with the hydraulic system.