CN203699269U - Passive hydraulic broken belt catcher for belt conveyor - Google Patents
Passive hydraulic broken belt catcher for belt conveyor Download PDFInfo
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- CN203699269U CN203699269U CN201420015183.XU CN201420015183U CN203699269U CN 203699269 U CN203699269 U CN 203699269U CN 201420015183 U CN201420015183 U CN 201420015183U CN 203699269 U CN203699269 U CN 203699269U
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- belt
- hydraulic
- live spindle
- frame
- pivot arm
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Abstract
The utility model discloses a passive hydraulic broken belt catcher for a belt conveyor. The top of a machine frame (8) is provided with a rotating spindle (9) perpendicular to a belt (1), a clamping beam (10) is arranged under the rotating spindle (9), a detecting roller (2) is arranged on at least one side of the clamping beam (10) and connected with an overrunning clutch (3), the overrunning clutch (3) is connected with a hydraulic pump (4), the hydraulic pump (4) is connected with a hydraulic motor (14) through a check valve (11), the hydraulic motor (14) is connected with a hydraulic rotating mechanism (6), and the rotating spindle (9) connected with the hydraulic rotating mechanism (6) is further provided with a catching rotating arm (7). When the belt runs normally, the bottom edge of the catching rotating arm is suspended on one side of the rotating spindle; and when the broken belt runs, the detecting roller reversely triggers the overrunning clutch to drive the hydraulic pump, the hydraulic pump drives the hydraulic rotating mechanism to drive the bottom edge of the catching rotating arm to fall so as to clamp the belt together with the clamping beam.
Description
Technical field
The utility model relates to a kind of belt catching device, relates in particular to a kind of belt conveyer passive hydraulic fault-belt catching device.
Background technology
Belt conveyer, with advantages such as large, simple in structure, the continuous conveying of its transport capacity, investment cost are relatively low and easy to maintenance, has generally adopted in coal production, becomes " artery " and " throat " of coal production.But along with scientific and technical progress and highly efficient and productive needs, conveyer is towards long distance, high-power, large conveying quantity, high belt speed future development, belt is for a long time under the impact of this high loaded process and various unexpected factors, inevitably can there is the accident of broken belt and conveyer reversing, bring huge economic loss to mine, even greatly threaten worker's life security.Therefore, in-depth study belt conveyer broken belt reason, and design and develop safe and reliable broken belt protector of belt conveyor, the harm that reduction broken belt accident is caused and the safety in production that guarantees mine have important directive significance.
At present, belt break protection device for belt conveyor has much both at home and abroad, one is load-transfer device to be carried out to part clamping realize broken belt protector, this catcher is to utilize the lower slider masterpiece of fracture load-transfer device to realize for braking force, it arrests the unloaded limit of load-transfer device, active area is little, easily causes the longitudinal tear of belt; A kind of is the catching device that is independent of conveyer, mainly formed by support assembly, hydraulic efficiency pressure system, electric control system, signal acquiring system, it utilizes electric-control system to judge detection signal, just send signal enabling belt break protection device once there is broken belt accident, go braking by the powerful friction force between the upper and lower surface of hold-down mechanism, supporting mechanism and adhesive tape, although solved the defect that arrest broken belt part, but there is following problem: 1, signal acquiring system is expensive, easily produce misoperation, reliability is bad; 2, need the power supply of motor and control box to coordinate, should not use at the high mine of requirement of explosion proof; 3, complex structure, fault rate is high, and the cost of manufacture and installation and maintenance is also high.
Summary of the invention
Broken belt accident is being carried out on the basis of multi-analysis and block broken belt catcher effect summary at home and abroad, for fear of the further deterioration of accident after broken belt, solve because existing catching device needs the complex structure that propulsion source causes, the problem wasting energy, the utility model will design a kind of Purely mechanical belt conveyer passive hydraulic block broken belt catcher, without external propulsion source, detect cylinder and Hydraulic Pump by adopting overriding clutch to connect, realize and arresting with hydraulic pump drive hydraulic gyration mechanism.
For achieving the above object, the utility model provides a kind of belt conveyer passive hydraulic fault-belt catching device, main design thought is: comprise frame, frame top be provided with one in horizontal surface the live spindle vertical with belt, central rack is provided with one and is positioned under live spindle and parallel clamped beam with it, belt passes from clamped beam upper surface, on live spindle, be also provided with and arrest pivot arm, wish is implemented braking by arresting cooperatively interacting between pivot arm and clamped beam to belt, arresting pivot arm top is set on live spindle, in the time that belt normally moves, its base is stuck up and is suspended from live spindle one side, in the time that moving, belt broken belt falls behind and the common clamping belt of clamped beam under its base.
The utility model mechanical drive also comprises: live spindle one axle head is arranged in frame, and another axle head connects the hydraulic gyration mechanism being arranged in frame, and design is arrested the rotation of pivot arm and fallen by the driven rotary main shaft realization of hydraulic gyration mechanism.At least one side of clamped beam arranges a parallel placement, the detection cylinder that flushes highly, detecting cylinder two ends is installed in frame, belt passes from clamped beam and detection cylinder upper surface, detect the service direction of cylinder for detection of belt, and always, along the direction rotation of belt operation, once detect that belt broken belt is retrograde, detect cylinder and also can drive in the wrong direction.Detect cylinder one axle head and connect overriding clutch, overriding clutch connecting fluid press pump, wherein: overriding clutch is a kind of engagement of tooth, engagement or roller, the wedge action unidirectional delivery motion of voussoir or power-transfer clutch of moment of torsion of ratchet-ratchet of utilizing, in mechanical drive, make its combination or disengagement automatically by the change of main secondary part speed of relative movement variation or hand of rotation, that is to say, it can only be that belt fracture service direction triggers overriding clutch from single direction that driver element detects cylinder, then drives drive element Hydraulic Pump to produce hydraulic power.
The utility model hydrostatic drive also comprises: Hydraulic Pump oil suction is communicated with fuel tank, its oil outlet by check valve connecting fluid pressure motor, HM Hydraulic Motor connecting fluid pushes back rotation mechanism, the function of Hydraulic Pump is the pressure energy that the mechanical energy that detects cylinder is converted to liquid, to drive hydraulic gyration mechanism to rotate, and then the rotation of driven rotary main shaft, arrest the rotation of pivot arm to realize and fall.Arrest under pivot arm base and to fall behind, the perpendicular separation between itself and clamped beam has certain requirement, can reach with the common clamping belt of clamped beam and be as the criterion.
Increase moment of torsion plays in described hydraulic gyration mechanism, and the effect underspeeding realizes the requirement of low-speed big.Preferably, hydraulic gyration mechanism adopts reductor, arrest between pivot arm and play coupling rotating speed and transmitting torque at primary mover HM Hydraulic Motor and actuating unit, the power of HM Hydraulic Motor high-speed operation is reached to the object of deceleration by the big gear wheel on the few gear engagement output shaft of the number of teeth on the input shaft of reductor.
Described arrests pivot arm centered by live spindle, does circular motion from top to bottom, therefore preferred, it is fan-shaped arresting pivot arm vertical section.Fan-shaped drift angle is fixed on live spindle, and its arc limit end does whereabouts spinning movement.Arrest after pivot arm arc limit end hangs, the perpendicular separation of its base and clamped beam upper surface is unsuitable excessive or too small, and requirement can clamping belt.
Normal for further guaranteeing whole system pressure, between check valve and HM Hydraulic Motor, be also provided with energy storage.Wherein, energy storage is a kind of energy savings device in hydropneumatic system, and it is in due course and changes the energy in system into compression energy or potential energy stores; In the time that system needs, again compression energy or potential energy are changed into the energy such as hydraulic pressure or air pressure and discharge, again mend feed system; In the time that system instantaneous pressure increases, it can absorb this part energy, normal to guarantee whole system pressure.Read for convenience force value, between check valve and HM Hydraulic Motor, be also provided with compression indicator.
The utility model adopts said structure, utilizing the counter-force or the moment that while detecting cylinder counter motion, produce is drive source, the interface unit that adopts mono-directional overrun clutch to introduce as propulsion source, is connected and is detected cylinder and Hydraulic Pump by overriding clutch that only can unidirectional delivery power, so, when belt normally moves, can not trigger overriding clutch, Hydraulic Pump does not produce hydraulic coupling, arrests pivot arm and quits work, belt is not produced to any impact, do not waste any energy yet.In the time of belt fracture inverted running, the friction force of reverse belt drives and detects cylinder reverse, thereby triggering overriding clutch, then drive Hydraulic Pump to produce hydraulic power, and then drive hydraulic gyration mechanism, drive in the time that belt normally moves, be suspended from always live spindle one side arrest pivot arm fall, arrest pivot arm base fall to clamped beam make a concerted effort jointly to belt carry out arrest, complete the braking to broken belt.
This apparatus structure is simple, the counter-force producing while detecting cylinder counter motion or moment reach the object of braking as the propulsion source of arresting pivot arm, saved electric detecting unit, Energy Intensity Reduction, can realize belt catching function without external propulsion source, be applicable to the place that requirement of explosion proof is high.Fault-belt catching device is simple in structure, and cost is low, adopts Purely mechanical structure completely, has reduced because the erroneous judgement of electric signal brings unnecessary economic loss to mine, arrests action more reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model in the time that belt normally moves;
Fig. 2 is the structural representation of the utility model in the time that belt broken belt moves;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is hydraulic schematic diagram of the present utility model.
In figure: 1, belt, 2, detect cylinder, 3, overriding clutch, 4, Hydraulic Pump, 5, fuel tank, 6, hydraulic gyration mechanism, 7, arrest pivot arm, 8, frame, 9, live spindle, 10, clamped beam, 11, check valve, 12, energy storage, 13, compression indicator, 14, HM Hydraulic Motor.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 2 and 3, the utility model comprises frame 8, described frame 8 tops be provided with one in horizontal surface the live spindle 9 vertical with belt 1, and live spindle 9 one axle heads are arranged in frame 8, another axle head connects the hydraulic gyration mechanism 6 being arranged in frame 8; Described frame 8 middle parts are provided with one and are positioned under live spindle 9 and parallel clamped beam 10 with it, at least one side of clamped beam 10 arranges a parallel placement, the detection cylinder 2 that flushes highly, detecting cylinder 2 two ends is installed in frame 8, belt 1 passes with detecting cylinder 2 upper surfaces from clamped beam 10, detects cylinder 2 one axle heads and connects overriding clutch 3.
As shown in Figure 4, a moment input end of overriding clutch 3 is connected with the axle that detects cylinder 2, can jointly rotate with the axle that detects cylinder 2, and the transmission shaft of Hydraulic Pump 4 is fixedly connected with another moment mouth of overriding clutch 3.Hydraulic Pump 4 oil suctions are communicated with fuel tank 5, its oil outlet by check valve 11 connecting fluid pressure motors 14, and HM Hydraulic Motor 14 connecting fluids push back rotation mechanism 6, on the live spindle 9 being connected, are also provided with and arrest pivot arm 7 with hydraulic gyration mechanism 6.
As shown in Figure 1, described pivot arm 7 tops of arresting are set on live spindle 9, and in the time of belt 1 normal operation, its base is stuck up and is suspended from live spindle 9 one sides; As shown in Figure 2, in the time of belt 1 broken belt operation, under its base, fall behind and the common clamping belt 1 of clamped beam 10.
In above-described embodiment, in the utility model, the type of overriding clutch 3, Hydraulic Pump 4 is unrestricted.The various complexity of structure of hydraulic gyration mechanism 6, should adopt the reductor coordinating with HM Hydraulic Motor 14 in this scheme.For making system pressure stable, between check valve 11 and HM Hydraulic Motor 14, be also provided with energy storage 11 and compression indicator 13.
When use, this device is arranged on belt conveyer, and frame 8 needs special basis, detects cylinder 2 and contacts with belt 1 bottom.As shown in Figure 2, when belt 1 is in the time that clamped beam 10 normally moves with detection cylinder 2 upper surfaces, detect cylinder 2 under the driving of belt 1, direction rotating Vortex with belt 1 normal operation, the not transferring power of overriding clutch 3 being now connected with detection cylinder 2, the transmission shaft of the Hydraulic Pump of the present utility model 4 being connected with overriding clutch 3 does not rotate, and Hydraulic Pump 4 remains static, arrest pivot arm 7 and upwarp as shown in Figure 2, be fixedly suspended from live spindle 9 one sides.
As shown in Figure 3, in the time that belt 1 ruptures, belt 1 service direction will change, it is belt antikinesis, then detect cylinder 2 reverses under the drive of belt 1 friction force, the change that detects cylinder 2 hand of rotation can trigger overriding clutch 3, counter-rotational moment of torsion can pass to through overriding clutch 3 transmission shaft of Hydraulic Pump 4, making to detect cylinder 1 drives Hydraulic Pump 4 to pump hydraulic oil by overriding clutch 3, producing hydraulic power drives hydraulic gyration mechanism 6 to rotate, hydraulic gyration mechanism 6 drives and arrests pivot arm 7 spinning main shaft 9 one side direction clamped beam 10 direction rotations whereabouts, arrest pivot arm 7 bases and more and more approach belt 1 upper surface, fall within belt 1 upper surface to it, with the belt 1 that clamps antikinesis together with the clamped beam 10 of belt below, and then realization arresting in real time belt 1, prevent that belt from continuing antikinesis.In the time that detection cylinder 2 stops rotating backward or changes forward rotation into, the overriding clutch 3 of present embodiment quits work, and arrests pivot arm 7 and decontrols belt 1.
About the size and dimension of arresting pivot arm 7, as shown in Figure 3, it can regulate according to the width of belt 1 along the axial width of live spindle 9, is slightly less than width the best of belt 1, to guarantee that belt 1 is subject to arresting the area maximum of pivot arm 7 base brakings.Arresting in pivot arm 7 vertical sections, arrest pivot arm 7 pivot centeres to distance more at least on base and be greater than the vertical distance of this axle center to belt 1 upper surface, to guarantee that arresting pivot arm 7 bases can block broken belt from upper and lower both direction with clamped beam 10.Arrest for convenience pivot arm and do the camber line motion of falling, described to arrest the preferred vertical section of pivot arm 7 be fan-shaped, arrests the Wei Hu limit, base of pivot arm, as shown in Figure 2.
What this belt conveyer utilized belt 1 to drive to fall after broken belt with passive hydraulic fault-belt catching device arrests pivot arm 7; diminish and form self-locking by load-transfer device clamping braking with the distance of clamped beam 10; this fender guard is all individual apart from 3-4 is installed along conveyer; once there is broken belt accident in belt 1; this catching device is action immediately after receiving broken belt signal, by load-transfer device clamping braking.Because belt cross break needs the Tension Difference of 200t/mm, so can there is the pulling force of 200 × 1000t in the wide belt fracture of 1m, fault-belt catching device will be arrested broken belt, just need to bear impulsive force more than 200 × 1000t, and fault-belt catching device stent foot must be fixed.While preventing belt deviation and support friction cause the accident, the fault-belt catching device stent foot of belt both sides departs from conveyer frame 200-300mm.Owing to not relating to electricity, so install easily, this is also one of advantage of Purely mechanical catching device.
Claims (5)
1. a belt conveyer passive hydraulic fault-belt catching device, comprise frame (8), it is characterized in that, described frame (8) top be provided with one in horizontal surface the live spindle (9) vertical with belt (1), and it is upper that live spindle (9) one axle heads are arranged on frame (8), another axle head connects the hydraulic gyration mechanism (6) being arranged in frame (8);
Described frame (8) middle part is provided with one and is positioned under live spindle (9) and parallel clamped beam (10) with it, at least one side of clamped beam (10) arranges a parallel placement, the detection cylinder (2) that flushes highly, detect cylinder (2) two ends and be installed in frame (8) above, belt (1) passes from clamped beam (10) and detection cylinder (2) upper surface;
Described detection cylinder (2) one axle heads connect overriding clutch (3), overriding clutch (3) connecting fluid press pump (4), Hydraulic Pump (4) oil suction is communicated with fuel tank (5), its oil outlet by check valve (11) connecting fluid pressure motor (14), HM Hydraulic Motor (14) connecting fluid pushes back rotation mechanism (6), on the live spindle (9) being connected, is also provided with and arrests pivot arm (7) with hydraulic gyration mechanism (6);
Described pivot arm (7) top of arresting is set on live spindle (9), in the time that belt (1) normally moves, its base is stuck up and is suspended from live spindle (9) one sides, falls behind and the common clamping belt (1) of clamped beam (10) in the time that belt (1) broken belt moves under its base.
2. a kind of belt conveyer passive hydraulic fault-belt catching device according to claim 1, is characterized in that, described hydraulic gyration mechanism (6) adopts reductor.
3. a kind of belt conveyer passive hydraulic fault-belt catching device according to claim 1 and 2, is characterized in that, described to arrest pivot arm (7) vertical section be fan-shaped.
4. a kind of belt conveyer passive hydraulic fault-belt catching device according to claim 1 and 2, is characterized in that, between described check valve (11) and HM Hydraulic Motor (14), is also provided with energy storage (11).
5. a kind of belt conveyer passive hydraulic fault-belt catching device according to claim 4, is characterized in that, between described check valve (11) and HM Hydraulic Motor (14), is also provided with compression indicator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015183.XU CN203699269U (en) | 2014-01-10 | 2014-01-10 | Passive hydraulic broken belt catcher for belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015183.XU CN203699269U (en) | 2014-01-10 | 2014-01-10 | Passive hydraulic broken belt catcher for belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203699269U true CN203699269U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015183.XU Expired - Fee Related CN203699269U (en) | 2014-01-10 | 2014-01-10 | Passive hydraulic broken belt catcher for belt conveyor |
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| Country | Link |
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| CN (1) | CN203699269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787046A (en) * | 2014-01-10 | 2014-05-14 | 吕明俊 | Passive hydraulic broken belt arrester for belt conveyor |
| CN114906566A (en) * | 2022-04-24 | 2022-08-16 | 广东包庄科技有限公司 | Broken belt detection device and method |
-
2014
- 2014-01-10 CN CN201420015183.XU patent/CN203699269U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103787046A (en) * | 2014-01-10 | 2014-05-14 | 吕明俊 | Passive hydraulic broken belt arrester for belt conveyor |
| CN103787046B (en) * | 2014-01-10 | 2016-06-15 | 吕明俊 | A kind of ribbon conveyer passive hydraulic fault-belt catching device |
| CN114906566A (en) * | 2022-04-24 | 2022-08-16 | 广东包庄科技有限公司 | Broken belt detection device and method |
| CN114906566B (en) * | 2022-04-24 | 2023-08-29 | 广东包庄科技有限公司 | Belt breakage detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |