CN202765732U - Vertical hydraulic tensile device of circular tube belt-type conveyor - Google Patents
Vertical hydraulic tensile device of circular tube belt-type conveyor Download PDFInfo
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- CN202765732U CN202765732U CN 201220311572 CN201220311572U CN202765732U CN 202765732 U CN202765732 U CN 202765732U CN 201220311572 CN201220311572 CN 201220311572 CN 201220311572 U CN201220311572 U CN 201220311572U CN 202765732 U CN202765732 U CN 202765732U
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- tensile
- guide rod
- vertical hydraulic
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- steel
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Abstract
The utility model belongs to the technical field of vertical tensile devices of circular tube belt-type conveyors, particularly relates to a vertical hydraulic tensile device of a circular tube belt-type conveyor, and provides a device for freely regulating tensile force according to the requirement of the circular tube belt-type conveyor on tensile. The vertical hydraulic tensile device comprises tensile rollers, guide rods and a tensile oil cylinder, wherein the tensile rollers can rotate mounted in a whole framework in a rotating manner; the two sides of the whole framework are respectively the guide groove structures capable of sliding along the two guide rods; and the bottom of the whole framework is hinged to the piston rod end of the tensile oil cylinder, and the rod chamber of the tensile cylinder is connected with a hydraulic pressure station via an accumulator. The vertical hydraulic tensile device has the advantages of start pull force and normal operation pull force can be freely regulated according to the requirement of the tensile force of the conveyor; the response is quick, the dynamic tension of the conveyor is effectively achieved, thereby reducing the impact of the belt-type conveyor to a dynamic load during starting, so as to enable the start to be stable and reliable; the structure is impact, and the mounting space is small; and remote control to the tensile device can be achieved.
Description
Technical field
The utility model belongs to the technical field of circular pipe belt type conveyer vertical tensioning device, is specifically related to a kind of circular pipe belt type conveyer vertical hydraulic tension device.
Background technology
The effect of circular pipe belt type conveyer vertical tensioning device is to make adhesive tape have enough tension force, guarantees that the friction force that produces between adhesive tape and the driving drum makes adhesive tape non-slip, thereby guarantees that conveyer normally moves.At present, general vertical tensioning device is by tension drum on the circular pipe belt type conveyer, and the guide rod of weight box and restriction weight box pendulum forms.Tension drum is positioned at the weight box top.The counterweight of packing in weight box cast iron or mud coagulate soil block, make adhesive tape and cylinder produce friction force.The 1.3-1.5 that conveyer tension force should be smooth operation tension force when the circular pipe belt type conveyer full load starting doubly, because the vertical tension of weight hammer type can not be regulated automatically, in order to satisfy full load starting to the requirement of belt tension, just must have and keep the required counterweight of full load starting.Because circular pipe belt type conveyer carrying roller group forms hexagon or octagon by six or eight carrying rollers, simulate friction coefficient large.Certainly will increase like this resistance of circular pipe belt type conveyer, the service life of having reduced tension drum and load-transfer device.
Given this, the utility model provides a kind of and conveyor belt tension can be controlled in certain scope, and simple in structure, and cost can not increase safe and reliable device.
Summary of the invention
Goal of the invention of the present utility model: provide a kind of during by circular pipe belt type conveyer starting and normal operation, according to circular pipe belt type conveyer the needs of tension force, any vertical tensioning device of tension adjusting.
For achieving the above object, the utility model is by the following technical solutions:
A kind of circular pipe belt type conveyer vertical hydraulic tension device, comprise tension drum, two parallel guide rod and the drawing cylinders that also comprise vertical setting, tension drum rotatably is installed in the general frame, the both sides of general frame are respectively can be along the guide barrel construction of two guide rods slip, the bottom of general frame and the rod end of drawing cylinder are hinged, and the rod chamber of drawing cylinder is connected with Hydraulic Station by energy storage, and the rodless cavity of drawing cylinder directly is connected with Hydraulic Station.
Described general frame comprises entablatrance and the cross sill that be arranged in parallel with the tension drum axis, the two ends of upper and lower crossbeam connect by limiting bracket respectively, limiting bracket comprises two angle steel and a steel plate, the relative plate centre line of two angle steel is symmetrically welded in a side of steel plate and forms guide barrel construction, the degree of depth of guide barrel construction is greater than the radius of guide rod, and the bearing seat at tension drum two ends is fixed on the opposite side of steel plate.
Described two parallel guide rod bottoms are installed on the guide rod base, every guide rod also is equipped with two steel pipes in parallel, the bottom of two steel pipes also is installed on the guide rod base, guide rod and other two steel pipes are isosceles triangle shape to be arranged, and guide rod and other two steel pipes equidistantly are welded to connect in twos by some fine steel tubes from top to bottom.
The fixedly hinge ear of described drawing cylinder is installed on guide rod base middle part.
The utility model possesses following advantage:
1. start pulling force and normal operation pulling force can be regulated arbitrarily according to the needs of conveyer tension force, can realize pulling force 1.3-1.5 times of requirement when normally moving fully.Electrohydraulic system is in case after setting up, take-up device namely keeps conveyer to move in the ideal situation by the preset program automatic operation.
2. response is fast, is in unsteady state during the belt conveyer starting, and this moment, take-up device passed through the oil cylinder quick-expansion, in time compensated the elastic oscillation of load-transfer device, effectively realized the dynamic tension of conveyer.Thereby impact minor load when reducing the belt conveyer starting, make starting steadily reliable.
3. compact conformation, installing space is little.Guide rod rigidity is high, and is safe and reliable.
4. can be connected with centralized control, realize the distance control to take-up device.
Description of drawings
Fig. 1 is hydraulic schematic diagram of the present utility model,
Fig. 2 is the utility model master TV structure schematic diagram,
Fig. 3 is the utility model hydraulic efficiency pressure system connection diagram,
Fig. 4 is the limiting bracket cutaway view,
Fig. 5 is guide rod sectional structure schematic diagram,
Wherein: 1-oil absorption filter, 2-electric-motor pump group, 3-by pass valve I, the 4-fine filter, 5-hand change over valve, 6-hydraulic control one-way valve, the 7-compression indicator, 8-pressure transformer, 9-energy storage, the 10-shutoff valve, 11-drawing cylinder, 12-solenoid directional control valve, 13-by pass valve II, 14-fuel tank, 15-tension drum, the 16-limiting bracket, 17-cross sill, 18-guide rod, the 19-entablatrance, 20-guide rod base, 21-Hydraulic Station, 22-electric cabinet, the 23-angle steel, the 24-steel plate, 25-steel pipe, YJ1, YJ2, YJ3-pressure relay.
The specific embodiment
The utility model is comprised of tension drum 15, entablatrance 19, limiting bracket 16, cross sill 17, guide rod 18, drawing cylinder 11, Hydraulic Station 21, energy storage 9, electric cabinet 22.
As shown in Figure 2, tension drum 15 two end axles bearings are fixed on the limiting bracket 16, and entablatrance 19 and cross sill 17 place respectively tension drum 15 upper and lower and connect into a general frame with limiting bracket 16.Guide rod 18 is installed on guide rod base 20 two ends.General frame slides up and down along guide rod 18, and guide rod 18 restriction general frames swing.Drawing cylinder 11 fixing hinge ears are installed in the middle of the guide rod base 20, and drawing cylinder 11 is middle hinged with cross sill 17.
As shown in Figure 3, drawing cylinder 11 rod chamber hydraulic fluid ports are connected with energy storage 9 oil outlets by oil pipe.Energy storage 9 imports are connected with Hydraulic Station 21 oil outlets by oil pipe.Drawing cylinder 11 rodless cavity hydraulic fluid ports are connected with Hydraulic Station 21 hydraulic fluid ports by oil pipe.
As shown in Figure 4, limiting bracket is formed by two angle steel and Plate Welding, and a base of two angle steel is welded in and forms bathtub construction on the steel plate, and the another side of two angle steel is parallel to each other, keeps certain spacing, and the summit of angle steel surpasses the center of pilot line.
As shown in Figure 5: guide rod 18 is equicrural triangle with other two steel pipes 25 to be arranged, middle by some mini diameter tubes by equidistantly being welded.Because the utility model guide rod adopts three steel pipes to be equicrural triangle and arranges, greatly strengthens the sideslip of having avoided load-transfer device than single steel pipe guide rod rigidity and causes deflecting to the blastic deformation of guide rod of cylinder.
As shown in Figure 1: hydraulic efficiency pressure system comprises oil absorption filter 1, electric-motor pump group 2, by pass valve I 3, fine filter 4, hand change over valve 5, hydraulic control one-way valve 6, compression indicator 7, pressure transformer 8, energy storage 9, shutoff valve 10, drawing cylinder 11, solenoid directional control valve 12, by pass valve II 13, fuel tank 14, YJ1, YJ2, YJ3 pressure relay.Oil absorption filter 1, electric-motor pump group 2, fine filter 4 are installed in the fuel tank 14; By pass valve I, II, hand change over valve 5, hydraulic control one-way valve 6, compression indicator 7, pressure transformer 8, shutoff valve 10, solenoid directional control valve 12 are installed on the connecting panel and are connected with fuel tank 14; Shutoff valve 10 is installed on the Hydraulic Station delivery port, and energy storage 9, drawing cylinder 11 connect in Hydraulic Station by flexible pipe.Manually starting Oil pump electrical machinery under the operating mode, oil pump through oil absorption filter 1 from the fuel tank oil suction.When hand change over valve 5 spools were in meta, the fluid that oil pump is discharged behind hand change over valve 5, just returned fuel tank through pressure line filter 4, and namely oil pump does not provide pressure oil to system, and at this moment oil pump is the off-load operating mode.
When hand change over valve is in right when position, the pressure oil that oil pump is discharged is opened in advance through change-over valve 5, hydraulic control one-way valve 6, shutoff valve 10() enter the rod chamber of oil cylinder, the pushing piston bar reclaims.In this process, the oil return of oil cylinder rodless cavity is then returned fuel tank through change-over valve 5.When oil cylinder can not spur the tensioning dolly again and moves, the pressure oil that oil pump is discharged just entered energy storage 9, and the oil pressure that constantly raises, until system pressure rises to the settling pressure of by pass valve I 3 or by pass valve II 13, by pass valve I 3 or by pass valve II 13 are opened overflows.
When hand change over valve 5 is in left valve position, the pressure oil that oil pump is discharged enters oil cylinder rodless cavity through change-over valve 5, pushing piston makes piston rod protruding, pressure oil is opened hydraulic control one-way valve 6 through oil circuit control (dotted line among the figure) simultaneously, makes the oil return of cylinder rod chamber through hydraulic control one-way valve 6, hand change over valve 5 oil sump tanks.When needs re-tensioning belt, the hand change over valve handgrip is got to right valve position after can directly starting pumping plant, until tightening force rises to till the setting value.
Under automatic operating, press start button.Machine to be conveyed sends actuation signal when starting, at this moment electromagnetic valve change-over valve 12 must be electric, oil pump open system pressure rise, and send the permission actuation signal, system pressure rises to by pass valve 3 response pressures, and when treating that the system delay time arrives, system changes normal operating condition over to by starting state.
Change normal smooth operation over to after the conveyer starting, solenoid directional control valve 12 dead electricity at this moment, valve core reset is with oil return line and the fuel tank connection of by pass valve II 13.System oil pressure drops to the setting (lower than by pass valve I 3) of by pass valve II 13.And the operating pressure value that YJ1, YJ2 pressure relay adjust is less, so reset at solenoid directional control valve 12, system pressure oil is so that the YJ1 action, its contact KP1 so that Oil pump electrical machinery automatically quit work.Along with the continuation of conveyer operation, owing to the reasons such as leakage of fluid in the plastic elongation of load-transfer device and the hydraulic efficiency pressure system, the oil pressure of cylinder rod chamber can constantly descend.When pressure dropped to the action recovery pressure of YJ2, its contact KP2 was so that Oil pump electrical machinery restarts, and oil pump is again to the cylinder rod chamber fuel feeding and make its pressure rise.When pressure was elevated to the operating pressure of YJ1, YJ1 moved again and Oil pump electrical machinery is shut down.After after a while, pressure drop is during to the operating pressure of YJ2, and Oil pump electrical machinery starts up again, so automatically repeatedly.As seen, during the conveyer smooth operation, the pressure of hydraulic efficiency pressure system (being the pressure of cylinder rod chamber) is to change in the operating pressure value scope that YJ1 and YJ2 adjust.Because both setting value of pressure of YJ1, YJ2 differ very little, are generally about 1～2MPa, can be approximated to be constant pressure, so oil cylinder can be regarded permanent tension force as to the tightening force of conveyer during the smooth operation.
After electric cabinet 22 is received conveyer master control startup command, start Hydraulic Station 21, check whether each electromagnetic valve of Hydraulic Station is normal.After checking normally, can startup command to the conveyer master control.The conveyer master control receive can startup command after, send the conveyer startup command.Drawing cylinder stretches out the oil cylinder extension bar by the pulling force of operation.During normal operation, different according to freight volume, adjust the beam hanger extension bar flexible.
Claims (4)
1. circular pipe belt type conveyer vertical hydraulic tension device, comprise tension drum (15), characterized by further comprising drawing cylinder (11) and the two parallel guide rods (18) of vertical setting, tension drum (15) rotatably is installed in the general frame, the both sides of general frame are respectively can be along the guide barrel construction of two guide rods (18) slip, the rod end of the bottom of general frame and drawing cylinder (11) is hinged, the rod chamber of drawing cylinder (11) is connected with Hydraulic Station (21) by energy storage (9), and the rodless cavity of drawing cylinder (11) directly is connected with Hydraulic Station (21).
2. circular pipe belt type conveyer vertical hydraulic tension device according to claim 1, it is characterized in that described general frame comprises entablatrance (19) and cross sill (17) that the axis with tension drum (15) be arranged in parallel, on, the two ends of cross sill connect by limiting bracket (16) respectively, limiting bracket (16) comprises two angle steel (23) and a steel plate (24), the relative plate centre line of two angle steel (23) is symmetrically welded in a side of steel plate (24) and forms guide barrel construction, the degree of depth of guide barrel construction is greater than the radius of guide rod (18), and the bearing seat at tension drum (15) two ends is fixed on the opposite side of steel plate (24).
3. circular pipe belt type conveyer vertical hydraulic tension device according to claim 1 and 2, it is characterized in that described two parallel guide rod (18) bottoms are installed on the guide rod base (20), every guide rod (18) also is equipped with two steel pipes (25) in parallel, the bottom of two steel pipes (27) also is installed on the guide rod base (20), guide rod (18) is isosceles triangle shape with other two steel pipes (25) to be arranged, and guide rod (18) equidistantly is welded to connect by some fine steel tubes from top to bottom in twos with other two steel pipes.
4. circular pipe belt type conveyer vertical hydraulic tension device according to claim 3 is characterized in that the fixedly hinge ear of described drawing cylinder (11) is installed on guide rod base (20) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311572 CN202765732U (en) | 2012-06-29 | 2012-06-29 | Vertical hydraulic tensile device of circular tube belt-type conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311572 CN202765732U (en) | 2012-06-29 | 2012-06-29 | Vertical hydraulic tensile device of circular tube belt-type conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202765732U true CN202765732U (en) | 2013-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311572 Withdrawn - After Issue CN202765732U (en) | 2012-06-29 | 2012-06-29 | Vertical hydraulic tensile device of circular tube belt-type conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202765732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718029A (en) * | 2012-06-29 | 2012-10-10 | 太原向明机械制造有限公司 | Vertical hydraulic tensioning device of round pipe belt conveyer |
| CN105588699A (en) * | 2016-03-18 | 2016-05-18 | 辽宁工程技术大学 | Hydraulic impact testing machine |
-
2012
- 2012-06-29 CN CN 201220311572 patent/CN202765732U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718029A (en) * | 2012-06-29 | 2012-10-10 | 太原向明机械制造有限公司 | Vertical hydraulic tensioning device of round pipe belt conveyer |
| CN105588699A (en) * | 2016-03-18 | 2016-05-18 | 辽宁工程技术大学 | Hydraulic impact testing machine |
| CN105588699B (en) * | 2016-03-18 | 2017-12-26 | 辽宁工程技术大学 | A kind of hydraulic shock testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20140625 |
|
| RGAV | Abandon patent right to avoid regrant |