JPS60242115A - Frame supporting apparatus for transfer conveyor - Google Patents

Abstract

PURPOSE:To always keep a conveyor horizontally by detecting the inclination of a conveyor frame and switching the supply of oil pressure into a working cylinder installed under the conveyor frame, in the captioned apparatus for construction works, etc. CONSTITUTION:When crawlers 13 and 13' shift onto an inclined surface and are inclined in the transverse direction for the direction 14 of transfer of a conveyor belt, an angle sensor not shown in the figure detects the inclination, and the inclination angle of a frame 10 for the crawler 13 is varied by switching a selector valve through a controller and by switching the supply of oil pressure into a hydraulic cylinder 23 installed under the frame 10, and the frame 10 is corrected horizontally. With such constitution, the frame can be kept always horizontally.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a horizontal support device for a mobile conveyor on a slope or the like.

[Prior art]

BACKGROUND OF THE INVENTION Conventionally, in civil engineering work and the like, when it is necessary to constantly move a conveyor apparatus in response to the sometimes changing conditions at a work site, a mobile conveyor apparatus is advantageous and is often used.

Figures 10 and 11 show a self-propelled double conveyor, which is one of the conventionally used mobile conveyor systems. This is a type of conveyor device in which a tripper 5 is provided. These conveyor devices are constructed by arranging conveyor frames 1, 1', . The frames 1.1', . ... is installed and used while moving horizontally or fan-shaped depending on the situation at the work site. [Problem] In this case, the running surface of the work site is not necessarily horizontal; for example, crawlers 3, 3 ',... may stop on an inclined surface and a conveyor device may be used depending on the conditions of the running surface. At this time, if the conveyor device is tilted in the horizontal direction with respect to the conveyor running direction, there will not be much problem in the operation of the conveyor device, but If a tilt occurs in the direction, the conveyed object will be lifted from the conveyor belt at t'L', which will also pose a danger to the operation of the moving hopper 4 and the traveling tripper 5, making it impossible to operate the entire conveyor system. will occur.

[Purpose of the invention]

An object of the present invention is to provide a sensor for detecting the inclination of the conveyor frame, and to use a control device to keep the conveyor frame horizontal at all times. can be transported,
An object of the present invention is to provide a safe conveyor frame support device. [Structure of the Invention] The present invention provides a conveyor device in which a conveyor frame is mounted and supported on a traveling device. The support for the conveyor 7 frame is made up of a set of supports, and a set of actuating cylinders installed at the lower end of the conveyor frame and retracted vertically.
a switching valve that is provided in the conveyor frame and has a full pressure generation length of the fluid, and controls the full expansion and contraction of the operating link;
an angle sensor located at the top of the traveling device and attached to the center of the bottom of the conveyor frame to detect the inclination of the frame;
a control device m:Kj that is attached to the angle sensor and receives an angle signal from the angle sensor to switch and control the switching valve;
[Embodiment of the invention] If the embodiment of this invention is explained based on the drawings, the first embodiment will be explained.
The figure is a side view of a portion of a self-propelled two-shift pull conveyor with a travel tripper as an example of a mobile conveyor, and FIG. 2 is a plan view thereof.

The conveyor frames 10, 10', 10'' are connected by universal joints 12, 12' at joints 11 and 11'.

Joint part 11 at the bottom of the conveyor frame 10
, 11', there is a crawler 13 as a traveling device.
, 13' are provided, and the conveyor device is capable of self-propelled in a direction perpendicular to the transport direction arrow 14 of the conveyor belt.In addition, the conveyor frames io, i, o',
A rail 15 is provided on the top of the tripper 1.
6 runs on the rail 15.

FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, showing details of how the conveyor frame 10 is mounted and supported on the crawler 13, and FIG. 4 is a side view thereof. A pair of belt running frames 10a are erected on both sides of the conveyor frame 10 via hinges 16. ns Pair of belt running frames 1.
A carrier roller 17 on the upper stage and a return roller 18 on the lower stage are attached to the opposing inner sides of 0a, and the rows 217, 1
A conveyor belt (not shown) is stretched over 8. The conveyor frame 10 and the crawler 13 are joined at a substantially central position by a hinge 19 so that the conveyor frame 10 can be tilted left and right on the crawler 13.
A set of supports 20 supporting the conveyor frame 10 are sprayed, and the ill! of the conveyor frame 10 is sprayed. At the bottom of the l end, both ends are attached to the conveyor frame 10 and the crawler 13 through hinges 21 and 22, respectively.
A set of hydraulic cylinders 23 are attached to support the conveyor frame 10 and prevent the conveyor frame 10 from tilting.

At the upper part of the crawler 13, the conveyor frame 1001'L has an angle sensor storage surface 24 attached to the lower part near the center. 5 and @6 are drawings showing the schematic structure inside the storage surface 24, and show an example of an angle detection sensor.
5 is attached, the pendulum 26 hangs down from the n1 angle sensor 25, and the weight 27 attached to the lower end of the pendulum 26 is immersed in a viscous liquid in the storage surface 24, for example, hydraulic oil 28. be done. This hydraulic oil 28 acts as a damper that dampens the movement of the weight 27 against sudden inclinations and vibrations of the conveyor frame IO. FIG. 6 shows a state where the conveyor frame 10 is tilted, and the tilt angle is given to the angle sensor 25 by the pendulum 26 according to the tilt of the conveyor frame 10. 25 is a block diagram showing a control device and a hydraulic circuit for operating the hydraulic cylinder 23, and 30 is a control device that is installed near the storage surface 240 on the conveyor frame 10, and is calibrated according to the direction of inclination of the angle sensor 25. Or, when a negative angle signal is received, either the solenoid 32 or 33 of the hydraulic pressure switching valve 31 is selected to operate depending on the positive or negative angle signal of the 1g, and the hydraulic pressure generator 34J:p is supplied with pressure oil for hydraulic rotation M35. Or discharge to 36. As described above, the hydraulic cylinder 23 shown in FIGS. 3 and 4 operates to expand and contract, but if there is no input signal from the angle sensor 25,
That is, when the conveyor frame 1o is kept horizontal, no signal is sent from the angle sensor V-25, and therefore no control signal is sent to any of the control devices 30.1:C solenoids 33.34. Since there is no output 't'L, the hydraulic switching valve 31 is kept at the neutral position, and no pressure oil is discharged to any of the hydraulic circuits 35 and 36, and the hydraulic cylinder 23 maintains its housing state. .

[Action of the invention]

The present invention is constructed as described above, and its operation will be explained by driving the crawlers 13 and 13' of the conveyor device.
moving laterally or fan-shaped, crawlers 13, l 3
If the stopped position is on a slope, and if this slope is in the elevation direction with respect to the conveyance direction 14 of the conveyor belt, the conveyor frame 10 and the belt running h
'J When the hinge 16 between the bases 10a rotates, c
The inclination of the nine crawlers 13 and 13' is absorbed and does not affect the n1 belt running frame 10a. However, if this inclination is in the left-right direction with respect to the conveying direction 14 of the conveyor belt, that is, in the direction of movement of the crawlers 13 and 13' (
(see FIG. 8), the conveyor frame 10 and the belt running frame 10a are tilted from side to side. This inclination is detected by the angle sensor 25. For example, the angle sensor 25
When a positive angle signal from 5 is sent to the control device W130, the control device 30 energizes the solenoid 32.
Pressure oil is sent to the cylinder, and the hydraulic cylinder 23 is compressed. Therefore, the conveyor frame 10 is restored so as to remain horizontal as shown in FIG. At this point, the angle sensor 25 also remains horizontal, the output signal from the angle sensor 25 stops, and the hydraulic switching valve 3
1 maintains the neutral position, and the hydraulic cylinder 23 stops retracting.

When the crawlers 13 and 13' are inclined in the opposite direction to that described above, that is, in the case of an inclination surface opposite to that shown in FIG. Pressure oil is sent to the hydraulic circuit 36, the hydraulic cylinder 23 is extended, and the conveyor frame 10 is restored to keep it horizontal. When the level is completely maintained, the output signal from the angle sensor 25 stops. and hydraulic switching valve 31
maintains the neutral position, and the hydraulic linter 23 stops extending. As described above, the conveyor frame 10 is installed on the crawler 1.
3.13' It always works to keep it horizontal regardless of its inclination.

〔Effect of the invention〕

As explained above, the frame support device of the present invention can be used in a work site where a mobile conveyor device having a conveyor frame, such as a shift pull conveyor, changes from time to time. Even in places where it is difficult to operate the conveyor frame, it is possible to automatically keep the conveyor frame fully horizontal at all times, so there is no load on the reeds or the conveyor belt, and stable operation of traveling trippers etc. is possible. This ensures safe and efficient conveyor operation.

[Brief explanation of drawings]

Fig. 1 is a partial side view of the mobile conveyor device, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a detailed view of the AA cross section of Fig. 2,
Fig. 4 is a side view of Fig. 3, Fig. 5 is a schematic structural diagram of the inside of the angle sensor storage circuit, Fig. 6 is an explanatory diagram of the operation of Fig. 5, and Fig. 7
The figure is a block diagram of the control and hydraulic circuits, Figures 8 and 9 are explanatory diagrams of the operation of the present invention, Figure 10 is a general 111 side view of a conventional self-propelled two-seven-fold pull conveyor with a moving hoch;
Figure 1 is a general side view of a conventional self-propelled 2/77 pull conveyor with a moving hopper. 10, 10', 10"...conveyor frame
10a...Belt running frame 13.13'...Crawler 19.21.22...Hinge 20...Support 23.°.Hydraulic cylinder 24..Storage surface 25.
... Angle sensor 26 ... Pendulum 27 ... Weight 30 ... Control device @ 31 ... Hydraulic switching valve 32°3
3...Solenoid 34...Hydraulic pressure generator 35.3
6...Hydraulic circuit applicant Hazama Co., Ltd. Agent Patent attorney Yuji Takabe Figure 3 Figure 5WJ Figure 6

Claims (1)

[Claims] In a 7ffil conveyor system in which a conveyor frame is mounted and supported on a traveling device, there is a set of tiltable supports attached to the middle lower part of the conveyor frame, and a support member attached to the lower side end of the conveyor frame that expands and contracts vertically. A support device for the conveyor frame consisting of a set of operating cylinders, a pressure generating device for the fluid provided in the conveyor frame, a switching valve for controlling expansion and contraction of the operating cylinder, and a switching valve located at the upper part of the traveling device and located at the center of the lower part of the conveyor frame. An angle sensor that detects the inclination of the frame, and a control device that is attached to the angle sensor and that switches and controls the switching valve in response to an angle signal from the angle sensor. Frame support device for type conveyor.