CN101229879A - Cushioning type wedge type belt conveyer belt-broken braking apparatus capable of setting braking force - Google Patents
Cushioning type wedge type belt conveyer belt-broken braking apparatus capable of setting braking force Download PDFInfo
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- CN101229879A CN101229879A CNA2007100196587A CN200710019658A CN101229879A CN 101229879 A CN101229879 A CN 101229879A CN A2007100196587 A CNA2007100196587 A CN A2007100196587A CN 200710019658 A CN200710019658 A CN 200710019658A CN 101229879 A CN101229879 A CN 101229879A
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Abstract
The invention relates to a strip breaking braking device of a wedge type belt conveyor of a buffer type which can set braking force, which comprises an upper gate block (1) arranged on the upward side of a belt (2); a wedge guiding groove (4) and a wedge braking gate block (3) arranged below the belt (2); a spring element (6) is arranged on the upper gate block (1) or the wedge guiding groove (4) or the wedge braking gate block (3). The invention also provides an adjustable displacement restriction device (7) of the wedge braking gate block to restrict the displacement of the wedge braking gate block (3) in the wedge guiding groove (4); when the braking belt is broken, the wedge braking gate block (3) moves along the wedge guiding groove (4) and the location is restricted by the displacement restriction device (7) of the wedge braking gate block; the spring element (6) provides a friction braking force for the belt by the positive pressure generated by compression and allows the belt (2) to carry out relative slide between the upper gate block (1) and the wedge braking gate block (3), which has a certain buffer to the belt so that the belt is slowed down gradually until be braked.
Description
Affiliated technical field
The present invention relates to a kind of belt conveyer broken belt brake equipment, the wedge type belt type conveyer broken-belt brake equipment that particularly a kind of braking force can be set with pooling feature.
Background technology
At present, the most exploitativeness of the technical scheme of broken belt protector aspect is poor, and is immature.Exist two kinds of belt conveyer broken belt protector technology on the market, relatively ripe.
First kind is eccentric wheel type broken belt catching device, as patent (ZL03205939.6) a kind of broken belt catching device that utilizes eccentric running roller braking belt has been proposed, be that line contacts with belt during this broken belt catching device braking belt, glancing impact is easily hindered belt, its broken belt brake equipment has adopted and taken turns by the one-way eccentric of click control, its intensity is little, poor reliability, service life short, brakes asynchronous.Facts have proved, when belt generation broken belt, the situation of broken belt catching device akinesia usually occurs; Or the broken belt catching device moved, but the eccentric wheel that the frame of broken belt catching device usually can occur and be used to brake belt is damaged the situation that belt is torn.Practice shows that this kind technology is immature, withdraws from the market gradually.
Second kind is wedge type belt type conveyer broken-belt protecting device, and its broken belt brake equipment is the wedge shape damper brake, utilizes the belt that glides behind the broken belt to drive the belt that wedge shape braking brake shoe generation self-locking comes brake slide.The Wedge-type belt break protection device can be divided into mechanical type and power type again according to the difference of its flip flop equipment.Unidirectional triggering running roller in the middle part of wherein the mechanical type utilization is arranged in triggers and (has proposed patent application, 200520075897.0) or utilize the unidirectional triggering running roller be arranged in before or after the wedge shape braking brake shoe to trigger (to have proposed patent application application number is:, application number is: 200620077507.8), wherein but the actuator of power type utilization linear reciprocating motion comprises that Electrohydraulic push rod, electric pushrod, hydraulic actuating cylinder etc. trigger that (proposed patent application, application number is: 200610096113.1).According to the arrangement of brake shoe on it, but can be divided into the brake shoe fixed again and last brake shoe can be opened oscillating-type.Wherein go up the openable belt break protection device of brake shoe, when belt conveyer normally moved, brake shoe can be opened to the both sides and the belt parallel longitudinal of belt on it; During broken belt, the top that last brake shoe can swing to belt rapidly participates in the braking belt, and (proposed patent application, application number is: 200620170965.6).
The wedge shape of the broken belt brake equipment of wedge type belt type conveyer broken-belt protecting device braking brake shoe and belt for face contacts, area of contact is big, intensity is big, brakes reliably relatively, simple in structure, easy for installation, is subjected to user's approval and favorable comment.No matter wedge type belt type conveyer broken-belt protecting device is mechanical type or electrodynamic type; the principle of its braking belt all is to utilize wedge shape damper brake block self locking to brake belt; its broken belt brake equipment partly includes brake shoe, wedge shape braking brake shoe and wedge shape guide chute; last brake shoe is in the top of belt; the wedge shape guide chute is in the belt bottom; wedge shape braking brake shoe is in the wedge shape guide chute; in order to reduce the friction force of wedge shape guide chute and wedge shape damper brake interblock, between has been arranged ball row.Its braking principle and braking procedure are as shown in Figure 1, in Fig. 1 (a), the direction that glides behind the belt broken belt be A to, flip flop equipment touches wedge shape braking brake shoe travel direction be B to, when wedge shape braking brake shoe, belt and after going up the brake shoe contact, under the drive of the friction force of belt, wedge shape braking brake shoe generation self-locking, belt clamp is held between brake shoe and the wedge shape braking brake shoe, shown in Fig. 1 (b).In case self-locking takes place in wedge shape braking brake shoe between last brake shoe and wedge shape guide chute, in theory, last brake shoe and wedge shape braking brake shoe can provide the belt of enough big friction force braking force brake slide, make belt and last brake shoe and wedge shape damper brake interblock can not produce slide relative.But, after the belt generation broken belt, the original tension force of belt and belt and on glide rapidly under the combined action of downslide component of cargo, have huge impact power and huge kinetic energy.This just requires along the belt break protection device of belt holder many places layout, must participate in synchronously simultaneously braking, and bears such huge impact power.And belt is a flexible body; again because of the installation error of belt break protection device and being not quite similar of spacing adjusting of going up brake shoe and wedge shape damper brake interblock; therefore to guarantee to be not easy to realize along the belt of many belt break protection device synchronous brakings downslides of belt frame layout.Will occur a part of belt break protection device action like this and play the effect of braking belt, another part does not participate in braking.Thereby the bulk strength that causes the belt break protection device that participates in braking can not satisfy the requirement of brake slide belt, causes belt break protection device to be damaged, and belt that can not brake slide.The belt place of brake shoe and wedge shape braking brake shoe clamping on quilt is because the huge positive pressure that produces may cause damage to belt, even the situation of belt can occur tearing.
Summary of the invention
The objective of the invention is in order to overcome the defective of above-mentioned Wedge-type belt break protection device, a kind of wedge type belt type conveyer broken-belt brake equipment with pooling feature that can set braking force is provided.
The technical solution adopted for the present invention to solve the technical problems is:
Arranging brake shoe above the belt, in the arranged beneath of belt the wedge shape guide groove, the wedge shape braking brake shoe identical with wedge shape guide groove key groove is arranged in the wedge shape guide groove, and the brake surface of wedge shape braking brake shoe is parallel with last brake shoe and belt, is provided with the coating that the friction coefficient was arranged or increased at two contact surfaces to ball at wedge shape guide groove and wedge shape damper brake interblock.On last brake shoe or wedge shape guide groove or wedge shape braking brake shoe, be provided with spring element, and be provided with the wedge shape braking brake shoe displacement limit device that to regulate, limit the displacement of wedge shape braking brake shoe in the wedge shape guide groove.When the braking broken belt, wedge shape braking brake shoe moves along the wedge shape guide groove, and be subjected to wedge shape braking brake shoe displacement limit device spacing, the positive pressure that spring element produces by compression provides friction brake force for belt, and allow belt between last brake shoe and wedge shape braking brake shoe, to make slide relative, belt there is certain buffering, makes belt slow down gradually until being braked.
Position difference according to the setting of technical scheme medi-spring element can specifically be divided into three kinds of technical schemes, below these three kinds of technical schemes is described.
The technical solution adopted for the present invention to solve the technical problems one is:
Arranging brake shoe above the belt, in the arranged beneath of belt the wedge shape guide groove, formed wedge shape space between last brake shoe and the wedge shape guide groove, this wedge shape guide groove below is provided with base plate, the wedge shape guide groove separates with base plate, both connect by the compressible spring element that is between the two, wherein base plate and frame connect firmly, the wedge shape braking brake shoe identical with wedge shape guide groove key groove is arranged in the wedge shape guide groove, be in this wedge shape space, and the brake surface of wedge shape braking brake shoe is parallel with last brake shoe and belt, and wedge shape guide groove and wedge shape damper brake interblock are provided with the coating that the friction coefficient was arranged or increased at two contact surfaces to ball; And be provided with the wedge shape braking brake shoe displacement limit device that can regulate, and limiting the displacement of wedge shape braking brake shoe in the wedge shape guiding, wedge shape braking brake shoe is connected with flip flop equipment; And on last brake shoe and wedge shape braking brake shoe, connected firmly the brake shoe of material with big friction coefficient.
The technical solution adopted for the present invention to solve the technical problems two is:
Arranging brake shoe above the belt, should go up brake shoe connects by spring element and brake beam, compressible spring element is between brake beam and the last brake shoe, wherein brake beam and frame is connected, in the arranged beneath of belt the wedge shape guide groove, formed wedge shape space between last brake shoe and the wedge shape guide groove, this wedge shape guide groove and frame connect, the wedge shape braking brake shoe identical with wedge shape guide groove key groove is arranged in the wedge shape guide groove, be in this wedge shape space, and the brake surface of wedge shape braking brake shoe is parallel with last brake shoe and belt, is provided with the coating that the friction coefficient was arranged or increased at two contact surfaces to ball at wedge shape guide groove and wedge shape damper brake interblock; And be provided with the wedge shape braking brake shoe displacement limit device that can regulate, and limiting the displacement of wedge shape braking brake shoe in the wedge shape guiding, wedge shape braking brake shoe is connected with flip flop equipment; And on last brake shoe and wedge shape braking brake shoe, connected firmly the brake shoe of material with big friction coefficient.
The technical solution adopted for the present invention to solve the technical problems three is:
Arranging brake shoe above the belt, in the arranged beneath of belt the wedge shape guide groove, formed wedge shape space between last brake shoe and the wedge shape guide groove, this wedge shape guide groove and frame connect, the wedge shape braking brake shoe identical with wedge shape guide groove key groove is arranged in the wedge shape guide groove, be in this wedge shape space, and the brake surface of wedge shape braking brake shoe is parallel with last brake shoe and belt, and wedge shape guide groove and wedge shape damper brake interblock are provided with the coating that the friction coefficient was arranged or increased at two contact surfaces to ball; This wedge shape braking brake shoe is divided into two parts up and down, and the brake shoe first half and brake shoe lower part connect by the spring element that can compress that is between the two, and the brake shoe lower part of wedge shape braking brake shoe is connected with flip flop equipment; And be provided with the wedge shape braking brake shoe displacement limit device that can regulate, limit the displacement of wedge shape braking brake shoe in the wedge shape guiding; And on last brake shoe and wedge shape braking brake shoe, connected firmly the brake shoe of material with big friction coefficient.
Adopt above three kinds of technical schemes, when belt generation broken belt, flip flop equipment touches wedge shape braking brake shoe and moves along the wedge shape guide groove, and make the brake surface of wedge shape braking brake shoe contact with belt, under the effect of belt friction force, make wedge shape braking brake shoe continue motion, the extruding belt makes it contact with last brake shoe.
When adopting first kind of scheme,
Wedge shape braking brake shoe continues motion makes the wedge shape guide groove move perpendicular to base plate, and compression spring element also produces positive pressure.
If when adopting second kind of scheme,
Wedge shape braking brake shoe continues motion makes that going up brake shoe moves perpendicular to brake beam, and compression spring element also produces positive pressure.
If during the third scheme of employing,
Wedge shape braking brake shoe continues motion makes the brake shoe first half of wedge shape braking brake shoe move perpendicular to the brake shoe lower part, and compression spring element also produces positive pressure.
Like this, exist the positive pressure of an extruding belt between last brake shoe and wedge shape braking brake shoe, the friction force that this positive pressure produced plays brake action to the belt that glides.Because the pass between the positive pressure that spring element produces and the amount of compression of spring element is certain characteristic curve, therefore, after last brake shoe, belt and the contact of wedge shape braking brake shoe, the relation that wedge shape braking brake shoe and last brake shoe are braked the displacement of brake shoe to the friction brake force and the wedge shape of belt generation also can be obtained according to the characteristic curve of this spring element is corresponding.So,, can limit the displacement of the relative wedge shape guide groove of wedge shape braking brake shoe, thereby can set the friction brake force of this wedge shape brake equipment belt by regulating wedge shape braking brake shoe displacement limit device.
Adopt above three kinds of technical schemes, all can reach following some beneficial effect:
(1) by regulating wedge shape braking brake shoe displacement limit device, can limit the displacement of the relative wedge shape guide groove of wedge shape braking brake shoe, thereby set the braking force of resolving the band brake device, promptly in case after configuring, the maximum braking force of broken belt brake equipment then is fixing braking force.When the belt broken belt, flip flop equipment touches the action of broken belt brake equipment, clamp belt, because the maximum braking force of broken belt brake equipment is fixed, if the sliding force of belt is very big, belt can have under the situation of certain friction brake force, makes slide relative between last brake shoe and wedge shape braking brake shoe, belt there is certain buffering, makes belt slow down gradually until being braked.This brake mode has overcome the big shortcoming of impulsive force that original brake equipment bears in braking moment, has avoided the destruction of this impulsive force to broken belt brake equipment and frame, has also avoided the damage of braking place belt even the danger of tearing.
(2) can eliminate many broken belt brake equipments can not synchronization action and the harmful effect that causes.When belt generation broken belt, if the many places broken belt brake equipment of installing along belt is synchronization action fully, when the run of having only wherein, and the braking force that this a part of broken belt brake equipment provides is not enough to brake belt, belt then can bear the downslide of slowing down under the situation of certain braking force, the belt that glides still can impel does not still have action or the slower brake equipment of action to continue the effect that the braking belt is played in action, and the final belt that glides that makes is braked.
(3) because wedge shape braking brake shoe displacement limit device can be regulated, so just can set the braking force of broken belt brake equipment according to the actual needs at scene.Belt is relatively drier and the friction coefficient of relative brake shoe under the situation of water, humidity is arranged is different, and, according to needs are installed, what the spacing of brake shoe and belt was regulated also is not quite similar, therefore can be according to the operating mode at scene, by regulating wedge shape braking brake shoe displacement limit device, set the displacement of wedge shape braking brake shoe, thereby set relatively reasonably braking force.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the braking principle scheme drawing of existing Wedge-type broken belt brake equipment.
Fig. 2 is the braking principle scheme drawing of embodiments of the invention one.
Fig. 3 is the front view of embodiments of the invention one.
Fig. 4 is the left view of embodiment one shown in Figure 3.
Fig. 5 is the constructional drawing that adopts the belt break protection device of Fig. 3, one making of 4 illustrated embodiments.
Fig. 6 is the braking principle scheme drawing of embodiments of the invention two.
Fig. 7 is the front view of embodiments of the invention two.
Fig. 8 is the left view of embodiment two shown in Figure 7.
Fig. 9 is the constructional drawing that adopts the belt break protection device of Fig. 7, two making of 8 illustrated embodiments.
Figure 10 is the constructional drawing of the last brake shoe of belt break protection device shown in Figure 9 when opening.
Figure 11 is the braking principle scheme drawing of embodiments of the invention three.
Figure 12 is the front view of embodiments of the invention three.
Figure 13 is the left view of embodiment three shown in Figure 12.
Among the figure on 1. brake shoe 2. belts 3. wedge shapes braking brake shoe 4. wedge shape gathering sills 5. base plates 6. spring elements 7. wedge shapes braking brake shoe displacement limit device 8. brake shoes 9. brake shoes 10. carrying bolts 11. balls arrange the flip flop equipment 22. brake shoe first halves 23. brake shoe Lower Halves 24. adjusting bolt groups 25. limited blocks that flip flop equipment 17. frames 18. brake beams 19. fixed base plates 20. belt-breaking brake devices 21. that 12. spring catch, 13. limited blocks, 14. adjusting bolt groups, 15. belt-breaking brake devices 16. adopt the straight reciprocating motion drive units to drive adopt unidirectional triggering running roller to drive
The specific embodiment
Fig. 1 has showed the braking principle of existing Wedge-type broken belt brake equipment, and showed its braking procedure, among Fig. 1, arranged last brake shoe (1) in the top of belt (2), in the arranged beneath of belt (2) wedge shape guide groove (4), formed wedge shape space between last brake shoe (1) and the wedge shape guide groove (4), the wedge shape braking brake shoe (3) identical with wedge shape guide groove (4) key groove is arranged in wedge shape guide groove (4), and the brake surface of wedge shape braking brake shoe (3) is parallel with last brake shoe (1) and belt (2).Among Fig. 1 (a), the direction that glides behind the belt broken belt be A to, flip flop equipment (not drawing among the figure) touches wedge shape braking brake shoe travel direction be B to, when wedge shape braking brake shoe (3), belt (2) and upward brake shoe (1) contact, under the drive of the friction force of belt (2), self-locking takes place in wedge shape braking brake shoe (3), belt (2) is clamped in goes up between brake shoe (1) and the wedge shape braking brake shoe (3), shown in Fig. 1 (b).In case self-locking takes place in wedge shape braking brake shoe (3) between last brake shoe (1) and wedge shape guide chute (4), in theory, last brake shoe (1) and wedge shape braking brake shoe (3) can provide the belt (2) of enough big friction brake force brake slide, make belt (2) and last brake shoe (1) and wedge shape brake between brake shoe (3) and can not produce slide relative.But, in fact, after the belt generation broken belt, the original tension force of belt and belt and under the combined action of sliding force component of cargo, glide rapidly, have huge impact power and huge kinetic energy.This just requires along the belt break protection device of belt holder many places layout, must participate in synchronously simultaneously braking, and bears such huge impact power.Guarantee to be not easy to realize along the belt of many belt break protection device synchronous brakings downslides of belt frame layout.Will occur a part of belt break protection device action like this and play the effect of braking belt, another part does not participate in braking.Thereby the bulk strength that causes the belt break protection device that participates in braking can not satisfy the requirement of brake slide belt, causes belt break protection device to be damaged, and belt that can not brake slide.The belt place of brake shoe and wedge shape braking brake shoe clamping on quilt is because the huge positive pressure that produces may cause damage to belt, even the situation of belt can occur tearing.
Fig. 2 has showed the braking principle of embodiments of the invention one, and has showed braking procedure.In Fig. 2, arranging brake shoe (1) above the belt, in the arranged beneath of belt wedge shape guide groove (4), formed wedge shape space between last brake shoe (1) and the wedge shape guide groove (4), this wedge shape guide groove (4) below is provided with base plate (5), wedge shape guide groove (4) separates with base plate (5), both connect by the compressible spring element (6) that is between the two, wherein base plate (5) connects firmly with frame (not drawing among Fig. 2), the wedge shape braking brake shoe (3) identical with wedge shape guide groove (4) key groove is arranged in wedge shape guide groove (4), and the brake surface of wedge shape braking brake shoe (3) is parallel with last brake shoe (1) and belt (2); And be provided with the wedge shape braking brake shoe displacement limit device (7) that can regulate, and limiting the displacement of wedge shape braking brake shoe (3) in wedge shape guide groove (4), wedge shape braking brake shoe (3) is connected with flip flop equipment (not drawing among Fig. 2).
Among Fig. 2 (a), the direction that glides behind the belt broken belt be A to, flip flop equipment (not drawing among Fig. 2) touch wedge shape braking brake shoe (3) along wedge shape guide groove (4) travel direction be B to, and make the brake surface of wedge shape braking brake shoe (3) contact with belt (2), under the effect of belt (2) friction force, make wedge shape braking brake shoe (3) continue motion, the extruding belt makes it contact with last brake shoe (1), as shown in Fig. 2 (b).Under the drive of belt, wedge shape braking brake shoe (3) moves to continuing along B, make wedge shape guide groove (4) simultaneously compression spring element (6) along C to moving, be subjected to the spacing of wedge shape braking brake shoe displacement limit device (7) and stop up to braking wedge shape damper brake piece (3), as shown in Fig. 2 (c).
Fig. 3,4 is the constructional drawing of embodiments of the invention one.Among Fig. 3,4, on last brake shoe (1) and wedge shape braking brake shoe (3), connected firmly the brake shoe of material with big friction coefficient, front end at base plate (5) is provided with a block plate, steel plate is provided with staybolt (10), spring element (6) between base plate (5) and wedge shape guide groove (4) such as has adopted at the cylindroid helical-coil compression spring of pitch, be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) upper end connects firmly with the wedge shape guide groove, the lower end passes the hole from base plate (5), and the pin end adopts nut to limit.Be provided with ball row (11) between the wedge shape guide groove (4) of broken belt brake equipment (15) and wedge shape braking brake shoe (3) or increased the coating (not drawing among Fig. 3,4) of friction coefficient at two contact surfaces.Wedge shape braking brake shoe displacement limit device comprises the limiting stopper (13) that is fixed on wedge shape guide groove (4) and is bound up on wedge shape brakes adjusting bolt group (14) on the brake shoe (3), the length that the bolt of adjusting bolt group (14) stretches out can limit wedge shape braking brake shoe (3) displacement of wedge shape guide groove (4) relatively.When the braking belt, the adjusting bolt group (14) on the wedge shape braking brake shoe (3) touches limiting stopper (13) back stop motion.
Fig. 5 is the constructional drawing of belt break protection device of embodiment one that has adopted the broken belt brake equipment of principle shown in Fig. 2,3,4 and structure; the bilateral symmetry of the frame of this belt break protection device (17) has been installed two cover broken belt brake equipments (15), and the last brake shoe (1) of broken belt brake equipment (15) and wedge shape braking brake shoe (3) are in the both sides up and down on the unloaded limit of belt (2) respectively.The flip flop equipment (16) that adopts the straight reciprocating motion actuating device to drive has been installed at the middle part, flip flop equipment with about two wedge shapes brake brake shoes (3) and be connected.When broken belt, two wedge shapes braking brake shoe (3) synchronization action was braked belt (2) clamping about the flip flop equipment of this belt break protection device (16) impelled.When resetting, about the counter motion of two wedge shapes brakings brake shoe (3), with about two wedge shapes braking brake shoes (3) reset, break away from belt.
Fig. 6 has showed the braking principle of embodiments of the invention two, and has showed braking procedure.In Fig. 6, arranging brake shoe (1) above the belt, should go up brake shoe (1) connects by spring element (6) and brake beam (18), compressible spring element (6) is between brake beam (18) and the last brake shoe (1), wherein brake beam (18) and frame (17) is connected, in the arranged beneath of belt wedge shape guide groove (4), formed wedge shape space between last brake shoe (1) and the wedge shape guide groove (4), the fixed base plate (19) of this wedge shape guide groove (4) connects firmly with frame (not drawing among Fig. 6), the wedge shape braking brake shoe (3) identical with wedge shape guide groove (4) key groove is arranged in wedge shape guide groove (4), and the brake surface of wedge shape braking brake shoe (3) is parallel with last brake shoe (1) and belt (2), and be provided with the wedge shape braking brake shoe displacement limit device (7) that to regulate, limit the displacement of wedge shape braking brake shoe (3) in wedge shape guide groove (4), wedge shape braking brake shoe (3) is connected with flip flop equipment (not drawing among Fig. 6).
Among Fig. 6 (a), the direction that glides behind the belt broken belt be A to, flip flop equipment (not drawing among Fig. 6) touch wedge shape braking brake shoe (3) along wedge shape guide groove (4) travel direction be B to, and make the brake surface of wedge shape braking brake shoe (3) contact with belt (2), under the effect of belt (2) friction force, make wedge shape braking brake shoe (3) continue motion, the extruding belt makes it contact with last brake shoe (1), as shown in Fig. 6 (b).Under the drive of belt, wedge shape braking brake shoe (3) continues along B to moving, last brake shoe (1) simultaneously compression spring element (6) along C to moving, be subjected to the spacing of wedge shape braking brake shoe displacement limit device (7) and stop up to braking wedge shape damper brake piece (3), as shown in Fig. 6 (c).
Fig. 7,8 is the constructional drawing of embodiments of the invention two.Among Fig. 7,8, brake shoe (8), (9) of material on last brake shoe (1) and wedge shape braking brake shoe (3), have been connected firmly with big friction coefficient, spring element (6) between brake beam (18) and last brake shoe (1) has adopted disk spring, be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) lower end and last brake shoe (1) connect firmly, the lower end passes the hole from brake beam (18), and the pin end adopts nut to limit.Be provided with ball row (11) between the wedge shape guide groove (4) of broken belt brake equipment (20) and wedge shape braking brake shoe (3) or increased the coating (not drawing among Fig. 7,8) of friction coefficient at two contact surfaces.This wedge shape braking brake shoe displacement limit device comprises the limiting stopper (13) that is fixed on wedge shape guide groove (4) and is bound up on wedge shape brakes adjusting bolt group (14) on the brake shoe (3), the length that the bolt of adjusting bolt group (14) stretches out can limit wedge shape braking brake shoe (3) displacement of wedge shape guide groove (4) relatively.When the braking belt, the adjusting bolt group (14) on the wedge shape braking brake shoe (3) touches limiting stopper (13) back stop motion.
Fig. 9, the 10th has adopted the constructional drawing of belt break protection device of embodiment two of the broken belt brake equipment (20) of principle shown in Fig. 6,7,8 and structure; the bilateral symmetry of the frame of this belt break protection device (17) has been installed two cover broken belt brake equipments (20), and the last brake shoe (1) of broken belt brake equipment (20) and wedge shape braking brake shoe (3) divide the both sides up and down on other places and the unloaded limit of belt (2).The flip flop equipment (21) that adopts unidirectional triggering running roller to drive has been installed at the middle part, flip flop equipment (21) with about two wedge shapes brake brake shoes (3) and be connected.Adopt this structure, two wedge shapes braking brake shoe (3) synchronization action was braked the belt clamping about flip flop equipment when broken belt (21) impelled.Because last brake shoe (1) separates with brake beam (18), and there is spring element the centre, and its occupation space is bigger, and therefore, this belt break protection device has adopted can open the last brake shoe that can swing.When this belt break protection device normally moves at belt; brake beam (18) can rotate to and belt parallel longitudinal position around the axle of termination; last brake shoe is in the belt outside; can avoid brake shoe (1) and brake beam (18) to hinder the transportation of cargo on the belt, the constitution diagram when brake shoe is opened on it as shown in figure 10.After belt generation broken belt, the flip flop equipment (21) that unidirectional triggering running roller drives impels wedge shape braking brake shoe (3) action, and the inhibiting device that feasible upward brake shoe is broken away from is spacing, makes that going up brake shoe participates in braking belt above being discharged into belt under the effect of torsion spring rapidly.
Figure 11 has showed the braking principle of embodiments of the invention three, and has showed braking procedure.In Figure 11, arranging brake shoe (1) above the belt, in the arranged beneath of belt wedge shape guide groove (4), formed wedge shape space between last brake shoe (1) and the wedge shape guide groove (4), this wedge shape guide groove (4) connects firmly with frame (not drawing among Figure 11), the wedge shape braking brake shoe (3) identical with wedge shape guide groove (4) key groove is arranged in wedge shape guide groove (4), and the brake surface of wedge shape braking brake shoe (3) is parallel with last brake shoe (1) and belt (2), this wedge shape braking brake shoe (3) is divided into two parts up and down, and the brake shoe first half (22) connects by the spring element that can compress that is between the two with brake shoe lower part (23).And be provided with the wedge shape braking brake shoe displacement limit device (7) that can regulate, and limiting the displacement of wedge shape braking brake shoe (3) in wedge shape guide groove (4), wedge shape braking brake shoe (3) is connected with flip flop equipment (not drawing among Figure 11).
Among Figure 11 (a), the direction that glides behind the belt broken belt be A to, flip flop equipment (not drawing among Figure 11) touch wedge shape braking brake shoe (3) along wedge shape guide groove (4) travel direction be B to, make wedge shape space diminish, and make the brake surface of wedge shape braking brake shoe (3) contact, under the effect of belt (2) friction force, make wedge shape braking brake shoe (3) continue motion with belt (2), the extruding belt makes it contact with last brake shoe (1), as shown in Figure 11 (b).Under the drive of belt, wedge shape is braked brake shoe (3) and is continued along B to moving, two parts up and down (22) (23) of wedge shape braking brake shoe (3) simultaneously compression spring elements (6) along C to moving, be subjected to the spacing of wedge shape braking brake shoe displacement limit device (7) and stop up to wedge shape braking brake shoe (3), as shown in Figure 11 (c).
Figure 12,13 is the constructional drawing of embodiments of the invention three.Among Figure 12,13, brake shoe (8), (9) of material on last brake shoe (1) and wedge shape braking brake shoe (3), have been connected firmly with big friction coefficient, adopted rubber spring at the brake shoe first half (22) of wedge shape braking brake shoe (3) and the spring element (6) between the brake shoe lower part (23), be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) lower end and the brake shoe first half (22) connect firmly, the lower end passes the hole from brake shoe lower part (23), and the pin end adopts nut to limit.Be provided with ball row (11) between the wedge shape guide groove (4) of broken belt brake equipment and wedge shape braking brake shoe (3) or increased the coating (not drawing among Figure 12,13) of friction coefficient at two contact surfaces.This wedge shape braking brake shoe displacement limit device is to comprise the limiting stopper (25) on the brake shoe lower part (23) that is fixed on wedge shape braking brake shoe (3) and be bound up on adjusting bolt group (24) on the wedge shape guide groove (4), the length that the bolt of adjusting bolt group (24) stretches out can limit wedge shape braking brake shoe (3) displacement of wedge shape guide groove (4) relatively.When the braking belt, the limiting stopper (25) on the wedge shape braking brake shoe (3) touches regulates bolt group (24) back stop motion.
In these three embodiment, when broken belt brake equipment braking belt, between last brake shoe (1) and wedge shape braking brake shoe (3), exist the positive pressure of an extruding belt (2), the friction force that this positive pressure produced plays brake action to the belt (2) that glides.Because the pass between the positive pressure that spring element (6) produces and the amount of compression of spring element (6) is certain characteristic curve, therefore, after last brake shoe (1), belt (2) and wedge shape were braked brake shoe (3) contact, wedge shape braking brake shoe (3) also can be obtained according to the characteristic curve of spring element is corresponding with the relation that last brake shoe (1) is braked the displacement of brake shoe (3) to the friction brake force and the wedge shape of belt (2) generation.So,, can limit wedge shape braking brake shoe (3) displacement of wedge shape guide groove (4) relatively, thereby set the maximum friction braking force of this wedge shape brake equipment belt by regulating wedge shape braking brake shoe displacement limit device.Adopted etc. the cylindroid helical-coil compression spring of pitch as the spring element (6) of Fig. 3,4 illustrated embodiments, one band of discontinuance brake equipment (15), it is linear that the characteristic curve of this type spring is, the positive pressure that spring element (6) produces is directly proportional with the amount of compression of spring element (6), therefore, after last brake shoe (1), belt (2) and wedge shape braking brake shoe (3) contact, wedge shape braking brake shoe (3) is directly proportional with the displacement of wedge shape braking brake shoe (3) to the friction brake force that belt (2) produces with last brake shoe (1).After the adjusting bolt group (14) on the wedge shape braking brake shoe (3) touches limiting stopper (13), this belt braking device will provide a constant braking force, if the braking force that many table brakes provide is immediately during the belt of brake slide, belt (2) can be made slide relative between last brake shoe (1) and wedge shape braking brake shoe (3), belt there is certain buffering, makes belt slow down gradually until being braked.This brake mode has overcome the big shortcoming of impulsive force that original broken belt brake equipment bears in braking moment, has avoided the destruction of braking impulsive force to broken belt brake equipment and frame, has also avoided the damage of braking place belt even the danger that is torn.
Spring element described in the present invention (6) can adopt cylindroid helical-coil compression spring (as embodiment one), disk spring (as embodiment two), rubber spring (as embodiment three), can also adopt rubber-metal spiral complex spring, plate shape spring and cylindrical screw compression cluster spring.
Claims (9)
1. the cushioning type wedge type belt conveyer belt-broken brake equipment that can set braking force, be included in the last brake shoe (1) of the top of belt, the wedge shape guide groove (4) below belt and wedge shape braking brake shoe (3), it is characterized in that: wedge shape guide groove (4) below is provided with base plate (5), wedge shape guide groove (4) separates with base plate (5), both connect by the compressible spring element (6) that is between the two, and wherein base plate (5) connects firmly with frame (17); And be provided with the wedge shape braking brake shoe displacement limit device (7) that to regulate.
2. the cushioning type wedge type belt conveyer belt-broken brake equipment of setting braking force according to claim 1, it is characterized in that: be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) upper end connects firmly with wedge shape guide groove (4), the lower end passes the hole from base plate (5), the pin end adopts nut to limit, the front end of base plate (5) is provided with steel plate, and steel plate is provided with staybolt (10).
3. the cushioning type wedge type belt conveyer belt-broken brake equipment that can set braking force, be included in the last brake shoe (1) of the top of belt, the wedge shape guide groove (4) below belt and wedge shape braking brake shoe (3), it is characterized in that: go up brake shoe (1) and connect by spring element (6) and brake beam (18), compressible spring element (6) is between brake beam (18) and the last brake shoe (1), and wherein brake beam (18) is connected with frame (17); And be provided with the wedge shape braking brake shoe displacement limit device (7) that to regulate.
4. the cushioning type wedge type belt conveyer belt-broken brake equipment of setting braking force according to claim 3, it is characterized in that: be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) lower end and last brake shoe (1) connect firmly, the lower end passes the hole from brake beam (18), and the pin end adopts nut to limit.
5. the cushioning type wedge type belt conveyer belt-broken brake equipment that can set braking force, be included in the last brake shoe (1) of the top of belt, the wedge shape guide groove (4) below belt and wedge shape braking brake shoe (3), it is characterized in that: wedge shape braking brake shoe (3) is divided into two parts up and down, and the brake shoe first half (22) connects by the spring element that can compress (6) that is between the two with brake shoe lower part (23); And be provided with the wedge shape braking brake shoe displacement limit device (7) that to regulate.
6. the cushioning type wedge type belt conveyer belt-broken brake equipment of setting braking force according to claim 5, it is characterized in that: be provided with spring pin (12) in the middle of the spring element (6), spring pin (12) upper end connects firmly with the brake shoe first half (22) of wedge shape braking brake shoe (3), the lower end passes the hole from brake shoe lower part (23), and the pin end adopts nut to limit.
7. according to claim 1 or the 3 or 5 described cushioning type wedge type belt conveyer belt-broken brake equipments of setting braking force, it is characterized in that: spring element (6) can adopt cylindroid helical-coil compression spring, disk spring, rubber spring, rubber-metal spiral complex spring, plate shape spring and cylindrical screw compression cluster spring.
8. according to claim 1, the 3 or 5 described cushioning type wedge type belt conveyer belt-broken brake equipments of setting braking force, it is characterized in that: wedge shape braking brake shoe displacement limit device (7) comprises the limiting stopper (13) that is fixed on wedge shape guide groove (4) and is bound up on adjusting bolt group (14) on the wedge shape braking brake shoe (3), or comprises that being fixed on wedge shape brakes the limiting stopper (25) on the brake shoe (3) and be bound up on adjusting bolt group (24) on the wedge shape guide groove (4).
9. according to claim 1, the 3 or 5 described cushioning type wedge type belt conveyer belt-broken brake equipments of setting braking force, it is characterized in that: go up on brake shoe (1) and the wedge shape braking brake shoe (3) and connected firmly brake shoe (8), (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100196587A CN101229879A (en) | 2007-01-27 | 2007-01-27 | Cushioning type wedge type belt conveyer belt-broken braking apparatus capable of setting braking force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100196587A CN101229879A (en) | 2007-01-27 | 2007-01-27 | Cushioning type wedge type belt conveyer belt-broken braking apparatus capable of setting braking force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101229879A true CN101229879A (en) | 2008-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100196587A Pending CN101229879A (en) | 2007-01-27 | 2007-01-27 | Cushioning type wedge type belt conveyer belt-broken braking apparatus capable of setting braking force |
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| Country | Link |
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| CN (1) | CN101229879A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332463A (en) * | 2013-07-02 | 2013-10-02 | 扬州凯思特机械有限公司 | Capturing device of broken belt of groove-shaped conveying belt |
| CN103332464A (en) * | 2013-07-02 | 2013-10-02 | 扬州凯思特机械有限公司 | Broken belt capturing device for flat conveyer belt |
| CN105357945A (en) * | 2015-11-30 | 2016-02-24 | 苏州康贝尔电子设备有限公司 | Guide block of board conveying machine |
| CN105668139A (en) * | 2015-07-03 | 2016-06-15 | 徐工集团工程机械股份有限公司 | Tensioning device and belt conveyor |
| CN108545426A (en) * | 2018-06-04 | 2018-09-18 | 中国矿业大学 | A kind of downward belt conveyor distributed brake device and autocontrol method |
| CN108899198A (en) * | 2018-07-20 | 2018-11-27 | 张军 | A kind of antidetonation capacitor based on skewback cushioning principle |
| CN112441391A (en) * | 2020-12-01 | 2021-03-05 | 滁州职业技术学院 | Conveying device with reverse locking function and commercial concrete station |
| CN112740904A (en) * | 2021-02-24 | 2021-05-04 | 山西平阳重工机械有限责任公司 | Telescopic whole-rod type sugarcane harvester frame |
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- 2007-01-27 CN CNA2007100196587A patent/CN101229879A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332463A (en) * | 2013-07-02 | 2013-10-02 | 扬州凯思特机械有限公司 | Capturing device of broken belt of groove-shaped conveying belt |
| CN103332464A (en) * | 2013-07-02 | 2013-10-02 | 扬州凯思特机械有限公司 | Broken belt capturing device for flat conveyer belt |
| CN103332463B (en) * | 2013-07-02 | 2015-09-30 | 扬州凯思特机械有限公司 | A kind of flute profile conveyor belt breakage break catching apparatus |
| CN103332464B (en) * | 2013-07-02 | 2016-01-27 | 扬州凯思特机械有限公司 | A kind of flat shape conveyor belt breakage break catching apparatus |
| CN105668139A (en) * | 2015-07-03 | 2016-06-15 | 徐工集团工程机械股份有限公司 | Tensioning device and belt conveyor |
| CN105357945A (en) * | 2015-11-30 | 2016-02-24 | 苏州康贝尔电子设备有限公司 | Guide block of board conveying machine |
| CN105357945B (en) * | 2015-11-30 | 2018-03-27 | 苏州康贝尔电子设备有限公司 | One kind send trigger guide pad |
| CN108545426A (en) * | 2018-06-04 | 2018-09-18 | 中国矿业大学 | A kind of downward belt conveyor distributed brake device and autocontrol method |
| CN108545426B (en) * | 2018-06-04 | 2024-01-16 | 中国矿业大学 | Distributed braking device of downward belt conveyor and automatic control method |
| CN108899198A (en) * | 2018-07-20 | 2018-11-27 | 张军 | A kind of antidetonation capacitor based on skewback cushioning principle |
| CN112441391A (en) * | 2020-12-01 | 2021-03-05 | 滁州职业技术学院 | Conveying device with reverse locking function and commercial concrete station |
| CN112740904A (en) * | 2021-02-24 | 2021-05-04 | 山西平阳重工机械有限责任公司 | Telescopic whole-rod type sugarcane harvester frame |
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