CN110092140A - A kind of driving device and its hydraulic system of heavy duty scrapper conveyor - Google Patents
A kind of driving device and its hydraulic system of heavy duty scrapper conveyor Download PDFInfo
- Publication number
- CN110092140A CN110092140A CN201910398413.2A CN201910398413A CN110092140A CN 110092140 A CN110092140 A CN 110092140A CN 201910398413 A CN201910398413 A CN 201910398413A CN 110092140 A CN110092140 A CN 110092140A
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- Prior art keywords
- driving device
- valve
- fixed station
- driven
- hydraulic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
- B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses the driving devices and its hydraulic system of a kind of heavily loaded scrapper conveyor, including supporting plate, active driving device, two driven driving devices and fluid power system, active driving device includes the main fixed station for being provided with power device, power device includes the two-way hydraulic motor being connected in turn, photoelectric encoder, torque sensor and right angle reductor, right angle reductor is connected with sprocket shaft, the both ends of sprocket shaft are symmetrically arranged with two drive sprockets, driven driving device includes the small fixed station for being provided with power device, right angle reductor on small fixed station is connected with cantilevered axle, driven sprocket is provided in cantilevered axle；It is linked together respectively by two parallel scraper chains between two drive sprockets and two driven sprockets, several scraper plates are connected between two scraper chains, fluid pressure drive device provides power, present apparatus structure is simple, high reliablity is, it can be achieved that rapid starting/stopping under heavy load, can effectively adjust tension difference between two scraper chains of drag conveyor again.
Description
Technical field
The present invention relates to the driving device fields of heavily loaded scrapper conveyor, and in particular to it is a kind of heavy duty scrapper conveyor driving device and
Its hydraulic system.
Background technique
Scrapper conveyor is a kind of semiclosed property continuous transport equipment using flight chain transport bulk material, due to conveying
When material, flight chain is all embedded among material, therefore referred to as drag conveyor.Scrapper conveyor structure is simple, it is convenient to install and maintain,
Technology arrangement is flexible；Not only it can also be tilted or vertical transport with horizontal feed；Both can single machine use or multi-platform combined make
With.It is the indispensable transport device of coal mine fully-mechanized mining working.Drag conveyor is widely used, but existing drag conveyor master
There is a problem of following aspects: first is that existing drag conveyor, most of due to not having tension of scraper chain to adjust machine
Structure, when load is scattered it is uneven when, easily make two tension of scraper chain inconsistent, cause scraper chain and sprocket engagement unstable, generate
Fall chain, jump the accidents such as chain；Second is that the tension adjustment mode shutdown of the drag conveyor in current practice is passively adjusted
Method does not have real-time monitoring performance, is unfavorable for that tension of scraper chain is adjusted and is safeguarded during transportation；Third is that existing
Motor-speed reducer-sprocket wheel driving mechanism, it is unstable to will lead to starting when rapid starting/stopping under heavy load, easily causes and trembles greatly
It moves and influences the scrapper conveyor service life；Fourth is that without good failure emergency design, so that whole set equipment can not cope with burst well
Failure.
Summary of the invention
For above-mentioned technical deficiency, the object of the present invention is to provide a kind of driving device of heavily loaded scrapper conveyor and its
Hydraulic system, structure is simple, high reliablity is, it can be achieved that rapid starting/stopping under heavy load, can effectively adjust drag conveyor again
Tension difference between two scraper chains.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The present invention provides the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor, including supporting plate, setting in the branch
Plate wherein the active driving device of one end, supporting plate other end two sides are set and two mutually symmetrical with driven driving devices
And fluid power system, the active driving device include the main fixed station for being provided with power device, the power device packet
The two-way hydraulic motor being connected in turn, photoelectric encoder, torque sensor and right angle reductor are included, the right angle subtracts
The output end of fast machine is connected with sprocket shaft, and the sprocket shaft is fixed on the main fixed station by two first bearing seats, institute
The both ends for stating sprocket shaft are also symmetrical arranged there are two drive sprocket, and the driven driving device includes being provided with the power device
Small fixed station, the output end of the right angle reductor on the small fixed station is connected with cantilevered axle, and the cantilevered axle passes through second
Bearing block is fixed on the small fixed station, is provided with driven sprocket in the cantilevered axle；Two drive sprockets and two
It is linked together respectively by two parallel scraper chains between the driven sprocket, if being connected between two scraper chains
Dry scraper plate, the two-way hydraulic motor, the photoelectric encoder and the outer controller of the torque sensor；The liquid
Pressing drive system includes being fixed on the valve block of the two-way hydraulic motor tail portion, is provided with electro-hydraulic servo in each valve block
Valve, A interface, the B interface of the electrohydraulic servo valve are connected with the oil inlet of the two-way hydraulic motor, oil return opening respectively, described
The P interface of electrohydraulic servo valve connects hydraulic pump, and the hydraulic pump oil inlet is connected with fuel tank, the T interface of the electrohydraulic servo valve
It is connect with the fuel tank, is connected with 2/2-way liquid controlled reversing in turn between the T interface and the fuel tank of the electrohydraulic servo valve
Valve and check valve, the 2/2-way pilot operated directional control valve are also connect with the hydraulic pump, and the hydraulic pump is connected with motor.
Preferably, the two-way hydraulic motor and the photoelectric encoder, the photoelectric encoder and the torque sensing
It is linked together respectively by mutual compatible shaft coupling between device and the torque sensor and the right angle reductor.
Preferably, the oil inlet of the check valve is connect with the fuel tank.
Preferably, oil pressure sensor, the oil pressure is also respectively connected in the oil inlet of the two-way hydraulic motor, oil return opening
Sensor is arranged in the valve block.
Preferably, the quantity of the scraper plate is more than or equal to 3.
The beneficial effects of the present invention are: the present apparatus replaces traditional three-phase motor driving side using two-way hydraulic motor
Formula has the advantage that power ratio is big, quickly commutates, overcomes the shortcomings that conventional ADS driving mode is unfavorable for rapid starting/stopping；By with
The photoelectric encoder of two-way hydraulic motor connection detects its revolving speed, can effectively embody turn of drive sprocket and driven sprocket
Speed, while measurement error caused by due to chain wheel speed is excessively slow is eliminated, improve Rotating speed measring precision；Pass through electrohydraulic servo valve
The revolving speed control precision of two-way hydraulic motor can be improved in real-time control；By utilizing drive sprocket and driven sprocket rotational speed difference
Mode adjust tension of scraper chain, can in real time dynamically to tension of scraper chain carry out coordinated balance control；When scraper chain occurs
When the dangerous working conditions such as card resistance, hydraulic system pressure exceeds secure threshold, and 2/2-way liquid controlled reversing valve events realize system pressure
Off-load, two-way hydraulic motor stopping movement, has ensured the safety to work under abnormality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural representation of the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor provided in an embodiment of the present invention
Figure；
Fig. 2 is the connection schematic diagram of fluid power system provided in an embodiment of the present invention；
Fig. 3 is tension of scraper chain Principles of Regulation figure provided in an embodiment of the present invention.
Description of symbols:
1, main fixed station, 2, scraper plate, 3, scraper chain, 4, two-way hydraulic motor, 5, photoelectric encoder, 6, torque sensor,
7, right angle reductor, 8, small fixed station, 9, sprocket shaft, 10, first bearing seat, 11, cantilevered axle, 12, driven sprocket, 13, active
Sprocket wheel, 14, fuel tank, 15, electrohydraulic servo valve, 16, motor, 17,2/2-way pilot operated directional control valve, 18, check valve, 19, hydraulic
Pump.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 2, a kind of driving device and its hydraulic system of heavily loaded scrapper conveyor, including supporting plate, setting are in institute
State supporting plate wherein the active driving device of one end, supporting plate other end two sides are set and two mutually symmetrical with driven drivings
Device and fluid power system, the active driving device include the main fixed station 1 for being provided with power device, the power dress
Set two-way hydraulic motor 4, photoelectric encoder 5, torque sensor 6 and right angle reductor 7 including being connected in turn, institute
The output end for stating right angle reductor 7 is connected with sprocket shaft 9, and the sprocket shaft 9 is fixed on described by two first bearing seats 10
On main fixed station 1, the both ends of the sprocket shaft 9 are also symmetrical arranged there are two drive sprocket 13, and the driven driving device includes
It is provided with the small fixed station 8 of the power device, the output end of the right angle reductor 7 on the small fixed station 8 is connected with cantilever
Axis 11, the cantilevered axle 11 are fixed on the small fixed station 8 by second bearing seat 10, be provided in the cantilevered axle 11 from
Movable sprocket 12；Pass through two parallel scraper chains 3 between two drive sprockets 13 and two driven sprockets 12 respectively
It links together, several scraper plates 2 is connected between two scraper chains 3, the two-way hydraulic motor 4, the photoelectricity are compiled
Code device 5 and the outer controller of the torque sensor 6；The fluid power system includes being fixed on the bidirectional hydraulic horse
Up to the valve block of 4 tail portions, electrohydraulic servo valve 15, A interface, the B interface of the electrohydraulic servo valve 15 are provided in each valve block
It is connected respectively with oil inlet, the oil return opening of the two-way hydraulic motor 4, the P interface of the electrohydraulic servo valve 15 connects hydraulic pump
19,19 oil inlet of hydraulic pump is connected with fuel tank 14, and the T interface of the electrohydraulic servo valve 15 is connect with the fuel tank 14, institute
It states and is connected with 2/2-way pilot operated directional control valve 17 and check valve between the T interface of electrohydraulic servo valve 15 and the fuel tank 14 in turn
18, the 2/2-way pilot operated directional control valve 17 is also connect with the hydraulic pump 19, and the hydraulic pump 19 is connected with motor 16.
The two-way hydraulic motor 4 and the photoelectric encoder 5, the photoelectric encoder 5 and the torque sensor 6 with
And it is linked together respectively by mutual compatible shaft coupling between the torque sensor 6 and the right angle reductor 7.
The oil inlet of the check valve 18 is connect with the fuel tank 14.
Oil pressure sensor, the oil pressure sensor is also respectively connected in oil inlet, the oil return opening of the two-way hydraulic motor 4
It is arranged in the valve block.
The main fixed station 1 is all made of L-type structure with the small fixed station 8, convenient for saving space.
Working principle: when fluid power system is started to work, motor 16 drives hydraulic pump 19 to act, and hydraulic pump 19 is by liquid
Pressure oil is extracted out from fuel tank 14, is overpressurized introducing hydraulic circuit, and when fluid power system is in the nominal situation stage, active is driven
Two electromagnetic servo valves 15 that electromagnetic servo valve 15 in dynamic device is in left position and limited opening, driven driving device are in
Right position, the work of 4 task driven drive sprocket 13 of two-way hydraulic motor, by two scraper chains 3 drive two driven sprockets 12 into
Row rotation；As shown in figure 3, the tension of scraper chain 3 is transferred to three by mechanical structure when scraper chain is in the tension adjustment stage
Among torque sensor 6, the difference of the torque sensor 6 in torque sensor 6 and driven driving device in active driving device
Value Data is transferred in controller, converts tach signal for the difference signal of torque by controller, the tach signal and light
Photoelectric coder 5 makes the difference the actual speed signal that driven sprocket 12 measures to obtain difference signal, gained difference signal
It is changed into electromagnetic servo valve 15 after processor is handled and controls signal, controls 15 valve port of electromagnetic servo valve in driven driving device
Change and then control 4 rotation speed change of two-way hydraulic motor, achievees the purpose that the revolving speed for changing driven sprocket 12, make driven sprocket 12
Certain rotational speed difference is formed with drive sprocket 13 to adjust the tension of scraper chain 3.
The invention has the advantages that replacing traditional three-phase motor driving method using two-way hydraulic motor, have power ratio big, fast
Quick change to advantage, overcome the shortcomings that conventional ADS driving mode is unfavorable for rapid starting/stopping；Pass through what is connect with two-way hydraulic motor
Photoelectric encoder detects motor rotary speed, can effectively embody the revolving speed of drive sprocket and driven sprocket, while eliminating because of chain
Wheel speed it is excessively slow and caused by measurement error, improve Rotating speed measring precision；By the real-time control of electrohydraulic servo valve, can be improved
The revolving speed of two-way hydraulic motor controls precision；By taking above-mentioned company's tension real-time detection mode, scraper chain can reflect
The dynamic change of power, and variable signal is introduced into control system；Pass through the revolving speed rotational speed difference using drive sprocket and driven sprocket
Mode adjust tension of scraper chain, can in real time dynamically to tension of scraper chain carry out coordinated balance control；When scraper chain occurs
When the dangerous working conditions such as card resistance, hydraulic system pressure exceeds secure threshold, and 2/2-way liquid controlled reversing valve function realizes system pressure
Off-load fades to right position by left position, and high-pressure and hydraulic oil stream returns to fuel tank through check valve, and two-way hydraulic motor stopping movement ensureing
The safety to work under abnormality.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (5)
1. a kind of driving device and its hydraulic system of heavy duty scrapper conveyor, it is characterised in that: including supporting plate, be arranged in the supporting plate
Wherein the active driving device of one end, supporting plate other end two sides are set and two symmetrical driven driving devices with
And fluid power system, the active driving device include the main fixed station (1) for being provided with power device, the power device packet
Include the two-way hydraulic motor (4) being connected in turn, photoelectric encoder (5), torque sensor (6) and right angle reductor
(7), the output end of the right angle reductor (7) is connected with sprocket shaft (9), and the sprocket shaft (9) passes through two first bearing seats
(10) it being fixed on the main fixed station (1), the both ends of the sprocket shaft (9) are also symmetrical arranged there are two drive sprocket (13),
The driven driving device includes the small fixed station (8) for being provided with the power device, right-angle reduction on the small fixed station (8)
The output end of machine (7) is connected with cantilevered axle (11), and the cantilevered axle (11) is fixed on the small fixed station by second bearing seat
(8) on, driven sprocket (12) are provided on the cantilevered axle (11)；Two drive sprockets (13) and two driven chains
Linked together respectively by two parallel scraper chains (3) between wheel (12), two scraper chains (3) if between be connected with
Dry scraper plate (2), the two-way hydraulic motor (4), the photoelectric encoder (5) and the torque sensor (6) equal external connection
Controller；The fluid power system includes being fixed on the valve block of the two-way hydraulic motor (4) tail portion, in each valve block
Be provided with electrohydraulic servo valve (15), the A interface of the electrohydraulic servo valve (15), B interface respectively with the two-way hydraulic motor
(4) oil inlet, oil return opening is connected, and the P interface of the electrohydraulic servo valve (15) connects hydraulic pump (19), the hydraulic pump (19)
Oil inlet is connected with fuel tank (14), and the T interface of the electrohydraulic servo valve (15) is connect with the fuel tank (14), the electro-hydraulic servo
2/2-way pilot operated directional control valve (17) and check valve (18) are connected in turn between the T interface and the fuel tank (14) of valve (15),
The 2/2-way pilot operated directional control valve (17) also connect with the hydraulic pump (19), and the hydraulic pump (19) is connected with motor
(16)。
2. the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor as described in claim 1, it is characterised in that: described double
To hydraulic motor (4) and the photoelectric encoder (5), the photoelectric encoder (5) and the torque sensor (6) and described
It is linked together respectively by mutual compatible shaft coupling between torque sensor (6) and the right angle reductor (7).
3. the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor as described in claim 1, it is characterised in that: the list
It is connect to the oil inlet of valve (18) with the fuel tank (14).
4. the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor as described in claim 1, it is characterised in that: described double
Oil pressure sensor is also respectively connected to oil inlet, the oil return opening of hydraulic motor (4), the oil pressure sensor is arranged in the valve
On block.
5. the driving device and its hydraulic system of a kind of heavily loaded scrapper conveyor as described in claim 1, it is characterised in that: described to scrape
The quantity of plate (2) is more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398413.2A CN110092140B (en) | 2019-05-14 | 2019-05-14 | Driving device of heavy-load scraper conveyor and hydraulic system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398413.2A CN110092140B (en) | 2019-05-14 | 2019-05-14 | Driving device of heavy-load scraper conveyor and hydraulic system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110092140A true CN110092140A (en) | 2019-08-06 |
| CN110092140B CN110092140B (en) | 2020-03-24 |
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ID=67448003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398413.2A Active CN110092140B (en) | 2019-05-14 | 2019-05-14 | Driving device of heavy-load scraper conveyor and hydraulic system thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN110092140B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466955A (en) * | 2019-08-12 | 2019-11-19 | 青岛中加特变频电机有限公司 | A kind of scratch board conveyor tensioning control method and control device |
| CN110758990A (en) * | 2019-10-08 | 2020-02-07 | 中国矿业大学 | Permanent magnet driven mining scraper conveyor chain tension balance control system and method |
| CN112483494A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Control method of large-span high-precision hydraulic servo turntable |
| RU2748543C1 (en) * | 2019-11-26 | 2021-05-26 | Китайский Университет Горного Дела И Технологии | Drive system of the scraper conveyor and control method |
| CN113567120A (en) * | 2021-09-18 | 2021-10-29 | 潍柴雷沃重工股份有限公司 | Test device for loading of chain harrow passing through bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466955A (en) * | 2019-08-12 | 2019-11-19 | 青岛中加特变频电机有限公司 | A kind of scratch board conveyor tensioning control method and control device |
| CN112483494A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Control method of large-span high-precision hydraulic servo turntable |
| CN110758990A (en) * | 2019-10-08 | 2020-02-07 | 中国矿业大学 | Permanent magnet driven mining scraper conveyor chain tension balance control system and method |
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| RU2748543C1 (en) * | 2019-11-26 | 2021-05-26 | Китайский Университет Горного Дела И Технологии | Drive system of the scraper conveyor and control method |
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| CN113567120A (en) * | 2021-09-18 | 2021-10-29 | 潍柴雷沃重工股份有限公司 | Test device for loading of chain harrow passing through bridge |
| CN113567120B (en) * | 2021-09-18 | 2021-12-21 | 潍柴雷沃重工股份有限公司 | Test device for loading of chain harrow passing through bridge |
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| Publication number | Publication date |
|---|---|
| CN110092140B (en) | 2020-03-24 |
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