CN202465082U - Double-driving travelling wheel braking system applied to crane - Google Patents
Double-driving travelling wheel braking system applied to crane Download PDFInfo
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- CN202465082U CN202465082U CN2012200711141U CN201220071114U CN202465082U CN 202465082 U CN202465082 U CN 202465082U CN 2012200711141 U CN2012200711141 U CN 2012200711141U CN 201220071114 U CN201220071114 U CN 201220071114U CN 202465082 U CN202465082 U CN 202465082U
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Abstract
The utility model discloses a double-driving travelling wheel braking system applied to a crane. The double-driving travelling wheel braking system comprises a general oil separator, two branch oil separators, two brakes and a pedal oil injection pump, wherein each brake comprises a base, a left supporting frame, a right supporting frame, a left brake shoe, a right brake shoe and two oil cylinders; the bottom of the left brake shoe is rotatably connected to a left main shaft of the left supporting frame and the bottom of the right brake shoe is rotatably connected to a right main shaft of the right supporting frame; a first oil cylinder is mounted in the middle of the left supporting frame and the end part of a piston is movably connected with the middle part of the left brake shoe; a second oil cylinder is mounted in the middle of the right supporting frame and the end part of a piston is movably connected with the middle part of the right brake shoe; and an oil outlet of the pedal oil injection pump is connected with oil inlets of the two oil cylinders. When the double-driving travelling wheel braking system is used, the oil inlet amount of the oil inlets of the oil cylinders on the brakes are controlled through the pedal oil injection pump, so as to control the tightness degree of clamping a brake wheel by the brake shoes, realize controllable braking speed and reduce the swinging range of a suspended object; and the double-driving travelling wheel braking system is beneficial for accurately loading the suspended object.
Description
Technical field
The utility model relates to a kind of brake equipment, relates in particular to the two wheel brake systems of initiatively walking that use on a kind of hoisting crane.
Background technology
On the active travelling wheel of hoisting crane and the transmission shaft between the motor, generally all be provided with drg, when outage, drg is held transmission shaft automatically tightly, and initiatively travelling wheel is out of service thereby make.
In the prior art, normal a kind of power hydraulic pressure block brake, the distance between two relative brake shoes of major control of adopting of the drg of hoisting crane.Under the situation of energising, the push rod of power hydraulic pressure block brake moves up, and promotes lever and screw rod, so promote two brake shoes relatively away from, thereby the power that guarantees motor output passes to initiatively travelling wheel smoothly; During outage, the push rod of power hydraulic pressure block brake moves down, pull lever and screw rod, and then spur two brake shoes near, thereby locking motor and the transmission shaft between the travelling wheel initiatively.
Yet; Mainly there is following deficiency in the mode of above-mentioned control power hydraulic pressure block brake: the power hydraulic pressure block brake mainly relies on the break-make electricity to realize; The speed of braking can't be regulated along with the height of lifted weight, the weight of lifted weight and the speed that lifted weight moves; The energy disperser and the collision of safe stop that are prone to the hoisting crane termination are strong, and the amplitude of lifted weight swing is bigger, is unfavorable for the accurate shipment of lifted weight.
The utility model content
To the above-mentioned deficiency that exists in the prior art, the utility model provides a kind of and can brake at any time, and the two wheel brake systems of initiatively walking that use on the hoisting crane that can adjust at any time of retro-speed.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
That uses on the hoisting crane two initiatively walks wheel brake system, comprises total oil distributor, first oil distributor, second oil distributor, two drgs and is installed in the interior foot-operated filling pump of operator's compartment;
Said drg comprises base, left bracing frame, right bracing frame, left brake shoe, right brake shoe, double end screw mandrel, first oil cylinder and second oil cylinder; The top of said left bracing frame and right bracing frame has a bearing pin with threaded hole respectively; The two ends of said double end screw mandrel screw respectively in the tapped bore of the bearing pin on left bracing frame and right bracing frame; The bottom of said left bracing frame and right bracing frame is hinged on respectively on the left and right sides of base; The bottom of said left brake shoe is rotating to be connected on the left main shaft of horizontally set on the left bracing frame; The bottom of said right brake shoe is rotating to be connected on the right main shaft of horizontally set on the right bracing frame, and said first oil cylinder is installed in the middle part of left bracing frame, and the end of the piston of first oil cylinder and the middle part of left brake shoe flexibly connect; Said second oil cylinder is installed in the middle part of right bracing frame, and the end of the piston of second oil cylinder and the middle part of right brake shoe flexibly connect;
The oil outlet of said foot-operated filling pump is connected with the oil inlet of first oil distributor and second oil distributor respectively through total oil distributor; First oil distributor is connected with first oil cylinder of one of them drg and the oil inlet of second oil cylinder, and second oil distributor is connected with first oil cylinder of another drg and the oil inlet of second oil cylinder.
A kind of preferred version as the utility model; This drg also comprises left brake-shoe link and right brake-shoe link; The bottom-hinged of said left brake-shoe link is on left main shaft; The fixing left brake shoe axle at the middle part of left brake-shoe link, the middle part of left brake shoe is hinged on the left brake shoe axle, and the end of the piston of said first oil cylinder and left brake shoe axle are hinged; The bottom-hinged of said right brake-shoe link is fixed a right brake shoe axle at the middle part of right brake-shoe link on right main shaft, the middle part of right brake shoe is hinged on the right brake shoe axle, and the end of the piston of said second oil cylinder and right brake shoe axle are hinged.
As the another kind of preferred version of the utility model, said first oil cylinder and second oil cylinder comprise cylinder body, piston, spring respectively and are installed in the oil cylinder cover on the cylinder body end face; Said piston is arranged in the piston hole of cylinder body and with the inner wall sealing of cylinder body and cooperates, and is provided with annular chamber near the piston hole wall of oil cylinder cover, and said piston radially outward forms an annular boss near an end of oil cylinder cover along it, and annular boss is positioned at annular chamber; Said spring housing is on piston, and an end is pressed on the medial extremity of annular chamber, and the other end is pressed on the annular boss; Said oil cylinder cover is provided with oil inlet and deflation hole.
As another preferred version of the utility model, be provided with wear-resisting band between the hole wall two ends of said piston hole and the piston.
As a kind of improvement project of the utility model, be provided with seal ring between the hole wall of said piston hole and the annular boss on the piston.
As the another kind of improvement project of the utility model, be provided with dust ring between the hole wall of said piston near outer end and piston hole.
As the further improvement project of the utility model, said foot-operated filling pump comprises box body, torque spring, the 3rd oil cylinder, stretcher, rotating shaft and drive spindle; Said rotating shaft pass box body and with the box body normal-running fit, the cylinder body of said the 3rd oil cylinder penetrates in the box body, the piston of the 3rd oil cylinder is positioned at box body and vertical with rotating shaft; Said stretcher is fixed on the cylindrical of rotating shaft and is positioned at outside the box body, and said drive spindle is perpendicular to rotating shaft, and an end of drive spindle is fixed in the rotating shaft, and the other end passes the piston of the 3rd oil cylinder and cooperates with the piston play of the 3rd oil cylinder; Said torque spring is enclosed within the rotating shaft, and an end of torque spring is fixed on the box body, and the other end is fixed in the rotating shaft; The oil inlet and the oil outlet of said the 3rd oil cylinder are positioned at outside the box body.
As the further again improvement project of the utility model, the oil inlet of said the 3rd oil cylinder is near box body, and the oil outlet of said the 3rd oil cylinder is arranged on the outer end of the cylinder body of the 3rd oil cylinder.
As the further improvement project again of the utility model, the piston of said the 3rd oil cylinder is provided with chute along its axial direction, the other end of drive spindle pass chute and with the chute free-running fit.
The beneficial effect of the utility model is: when using use on this hoisting crane two initiatively to walk wheel brake system; Through the oil inlet quantity of two oil cylinder oil inlets on the oil pump capacity control brake device of the foot-operated filling pump in the operator's compartment, thereby the control brake shoe is held the tightness of brake wheel tightly, realizes operating personal control brake speed; And retro-speed can be adjusted at any time; When hoisting crane runs to rail end, start foot-operated filling pump in advance, can alleviate the impact force between energy disperser and the safe stop effectively; Reduce the amplitude of lifted weight swing, more help the accurate shipment of lifted weight.
Description of drawings
The two structural representations of initiatively walking wheel brake system of Fig. 1 for using on the hoisting crane;
The two perspective view of initiatively walking wheel brake system of Fig. 2 for using on the hoisting crane;
Fig. 3 is the cutaway view of first oil cylinder and second oil cylinder.
In the accompanying drawing: 1-base; 2-left bracing frame; 3-right bracing frame; 4-left brake shoe; 5-right brake shoe; 6-double end screw mandrel; 7-bearing pin; 8-the first oil cylinder; 9-the second oil cylinder; 10-left main shaft; 11-right main shaft; 12-left brake-shoe link; 13-right brake-shoe link; 14-left brake shoe axle; 15-right brake shoe axle; 16-cylinder body; 17-piston; 18-oil cylinder cover; 19-piston hole; 20-spring; 21-annular chamber; 22-annular boss; 23-oil inlet; 24-deflation hole; 25-wear-resisting band; 26-seal ring; 27-dust ring; 28-seal ring; 29-hinge axis; 30-connector; 31-minute oil mass; 32-box body; 33-torque spring; 34-stretcher; 35-rotating shaft; 36-drive spindle; 37-cylinder body; 38-piston; 39-oil inlet; 40-oil outlet; 41-chute; 42-pipe link; 43-oil storage cylinder; 44-deflation hole; 45-the first oil distributor; 46-the second oil distributor.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done to describe in further detail.
Like Fig. 1, shown in 2, that uses on the hoisting crane two initiatively walks wheel brake system, comprises total oil distributor 31, first oil distributor 45, second oil distributor 46, two drgs and is installed in the interior foot-operated filling pump of operator's compartment.Drg comprises base 1, left bracing frame 2, right bracing frame 3, left brake shoe 4, right brake shoe 5, double end screw mandrel 6, first oil cylinder 8 and second oil cylinder 9.The bottom of left side bracing frame 2 and right bracing frame 3 is hinged on the left and right sides of base 1 through hinge axis 29 respectively; The top of left side bracing frame 2 and right bracing frame 3 has a bearing pin 7 with threaded hole respectively; Double end screw mandrel 6 is between two bearing pins 7, and the two ends of double end screw mandrel 6 screw respectively in the tapped bore of the bearing pin 7 on left bracing frame 2 and right bracing frame 3.On the rotating left main shaft 10 that is connected horizontally set on the left bracing frame 2 in the bottom of left side brake shoe 4, the bottom of right brake shoe 5 is rotating to be connected on the right main shaft 11 of horizontally set on the right bracing frame 3.First oil cylinder 8 is installed in the middle part of left bracing frame 2, and the middle part of the end of the piston of first oil cylinder 8 and left brake shoe 4 flexibly connects, and second oil cylinder 9 is installed in the middle part of right bracing frame 3, and the middle part of the end of the piston of second oil cylinder 9 and right brake shoe 5 flexibly connects.The oil outlet of foot-operated filling pump is connected with the oil inlet of first oil distributor 45 and second oil distributor 46 respectively through total oil distributor 31; First oil distributor 45 is connected with first oil cylinder 8 of one of them drg and the oil inlet of second oil cylinder 9, and second oil distributor 46 is connected with first oil cylinder 8 of another drg and the oil inlet of second oil cylinder 9.
In the present embodiment, this drg also comprises left brake-shoe link 12 and right brake-shoe link 13.The bottom-hinged of left side brake-shoe link 12 is fixed a left brake shoe axle 14 at the middle part of left brake-shoe link 12 on left main shaft 10, the middle part of left brake shoe 4 is hinged on the left brake shoe axle 14, and the end of the piston of first oil cylinder 8 is hinged through connector 30 and left brake shoe axle 14.The bottom-hinged of right brake-shoe link 13 is fixed a right brake shoe axle 15 at the middle part of right brake-shoe link 13 on right main shaft 11, the middle part of right brake shoe 5 is hinged on the right brake shoe axle 15, and the end of the piston of second oil cylinder 9 is hinged through connector 30 and right brake shoe axle 15.
Wherein, The structure of first oil cylinder and second oil cylinder is as shown in Figure 3; First oil cylinder and second oil cylinder include cylinder body 16, piston 17, spring 20 and are installed in the oil cylinder cover 18 on cylinder body 16 end faces, and oil cylinder cover 18 cooperates with the side seal of cylinder body 16 through seal ring 28.Piston 17 is arranged in the piston hole 19 of cylinder body 16 and with the inner wall sealing of cylinder body 16 and cooperates; Piston hole wall near oil cylinder cover 18 is provided with annular chamber 21; Piston 17 radially outward forms an annular boss 22 near an end of oil cylinder cover 18 along it, and annular boss 22 is positioned at annular chamber 21.Spring 20 is enclosed within on the piston, and an end of spring 20 is pressed on the medial extremity of annular chamber 21, and the other end of spring 20 is pressed on the annular boss 22.Oil cylinder cover 18 is provided with oil inlet 23 and deflation hole 24, and oil inlet 23 communicates with the right side of piston 17 respectively with deflation hole 24.
Be provided with between the hole wall two ends of piston hole 19 and the piston 17 and wear-resistingly be with 25.In the present embodiment, on the excircle of the annular boss 22 on piston 17 right sides, be provided with the wear-resisting band mounting groove of a circle, should in wear-resisting band mounting groove, be provided with and wear-resistingly be with 25.On the circumference of the left side of piston hole 19 hole wall, be provided with the wear-resisting band mounting groove of a circle; In this wear-resisting band mounting groove, be provided with and wear-resistingly be with 25; These two wear-resisting with 25 be supported on piston 17 two ends; Motion to piston 17 plays directional tagging, and the moving direction of piston 17 is limited on the axis direction of piston hole 19.
Be provided with seal ring 26 between the annular boss 22 on the hole wall of piston hole 19 and the piston 17; In the present embodiment; On the excircle of the annular boss 22 on piston 17 right sides, be provided with a circle seal ring mounting groove; Sealing circle 26 is installed in the seal ring mounting groove, avoids getting in the fluid piston hole 19 to the left between oil cylinder cover 18 and piston 17 right-hand members and reveals.
Be provided with dust ring 27 between the hole wall of piston 17 near outer end and piston hole 19; In the present embodiment; On the circumference of the left side of piston hole 19 hole wall, be provided with a circle dust ring mounting groove; This dust ring 27 is installed in this dust ring mounting groove, can avoid cylinder body 16 particle outward to get in the piston hole 19 from the left side of piston 17 effectively, thereby causes the wearing and tearing aggravation between piston hole wall and the piston.
Foot-operated oiling pump structure is like Fig. 1, shown in 2, and foot-operated filling pump comprises box body 32, torque spring 33, the 3rd oil cylinder, stretcher 34, rotating shaft 35 and drive spindle 36.Box body 32 is passed in rotating shaft 35, is fixed with bearing at the cylindrical of rotating shaft 35, and rotating shaft 35 is through bearing and box body 32 normal-running fiies.The cylinder body 37 of the 3rd oil cylinder penetrates in the box body 32 and is fixed on the box body 32, and the piston 38 of the 3rd oil cylinder is positioned at box body 32 and vertical with rotating shaft 35.Stretcher 34 is captiveed joint with the cylindrical of rotating shaft 35 through pipe link 42, and stretcher 34 is welded on the end of pipe link 42, and the other end of pipe link 42 is welded in the rotating shaft 35.Drive spindle 36 is perpendicular to rotating shaft 35, and an end of drive spindle 36 is fixed in the rotating shaft 35, the other end pass the 3rd oil cylinder piston 38 and with piston 38 free-running fits.Torque spring 33 is enclosed within the rotating shaft 35, and is positioned at outside the box body 32, and an end of torque spring 33 is fixed on the box body 32, and the other end of torque spring 33 is fixed in the rotating shaft 35.The oil inlet 39 and the oil outlet 40 of the 3rd oil cylinder are positioned at outside the box body 32.
Oil inlet 39 is near box body 32, and oil outlet 40 is arranged on the outer end of the cylinder body 37 of the 3rd oil cylinder, and oil gets in the cylinder bodies 37 through oil inlet 39, under the promotion of piston rod 7, the hydraulic oil of cylinder body 37 is extruded from oil outlet 40.In the present embodiment, also be provided with deflation hole 44, use first in the time of should riding filling pump in the outer end of cylinder body 37; Oil in getting into cylinder body 37 before; The air that cylinder body 37 stored are certain, oil in progressing into cylinder body 37 after, through this deflation hole 44 gas is discharged; After gas was discharged, the bolt through hermetically-sealed construction stopped up this deflation hole 44.
The piston 38 of the 3rd oil cylinder is provided with chute 41 along its axial direction, the other end of drive spindle 36 pass chute 41 and with chute 41 free-running fits.Make drive spindle 36 in rotating shaft 35 rotating process, the top of drive spindle 36 can promote that piston 38 moves forward or move backward.
The oil outlet 40 of the 3rd oil cylinder is connected with two oil cylinders of drg, the oil inlet of the 3rd oil cylinder is connected with oil storage cylinder 43.Should ride filling pump and be installed in the operator's compartment, and need glancing impact, the operating personal only using foot is stepped on down stretcher 34; Stretcher 34 just drives rotating shaft 35 and rotates, and rotating shaft 35 drives drive spindle 36 and rotates together, and move in chute 41 at the top of drive spindle 36; Driven plunger 38 is pushed ahead simultaneously; Hydraulic oil in the cylinder body 37 is forced out and gets in two oil cylinder of drg, and brake wheel is drawn close and held tightly step by step to two brake shoes that promote on the drg, realizes braking; Hoisting crane is when starting; Only need unclamp stretcher 34, rotating shaft 35 is rotated under the restoring force effect of torque spring 33, and rotating shaft 35 drives drive spindle 36 and rotates together; Drive spindle 36 driven plunger 38 move backward; Two in-oil cylinder hydraulic oil of drg turn back in the 3rd oil cylinder of foot-operated filling pump, and two brake shoes on the drg are to two side shiftings and break away from brake wheel gradually, and motor-driven initiatively travelling wheel is rotated.
When using use on this hoisting crane two initiatively to walk wheel brake system, first Rotating Double captacula bar 6, the distance between left bracing frame 2 of coarse adjustment and the right bracing frame 3, and then adjust the distance between left brake shoe 4 and the right brake shoe 5.Need glancing impact; The foot-operated filling pump indoor through control operation goes out speed oil; Oil is assigned to first oil distributor 45 and second oil distributor 46 through total oil distributor 31, is assigned in first oil cylinder 8 and second oil cylinder 9 of one of them drg by first oil distributor 45 again, is assigned to by second oil distributor 46 in first oil cylinder 8 and second oil cylinder 9 of another drg; And then control get between oil cylinder cover 18 and the piston 17 oil mass in the cavity how much; Thereby control plunger 17 promotes left brake shoe 4 to be drawn close with right brake shoe 5, and controls the speed and strength of holding brake wheel tightly step by step, final realization braking.Hoisting crane is when starting; Stop to first oil cylinder 8 and second oil cylinder, 9 fuel feeding through foot-operated filling pump; Piston 17 under the restoring force effect of spring 20 to a side shifting of oil cylinder cover 18; Piston 17 on first oil cylinder 8 and second oil cylinder 9 spurs left brake shoe 4 and right brake shoe 5 respectively, makes left brake shoe 4 and right brake shoe 5 also break away from brake wheel gradually to two side shiftings, and motor-driven initiatively travelling wheel is rotated.
Therefore, use the two wheel brake systems of initiatively walking that use on this hoisting crane, can be through the oil pump capacity of foot feed the 3rd oil cylinder oil outlet; Thereby the control brake shoe is held the tightness of brake wheel tightly; Realize artificial control brake speed in the operator's compartment, and retro-speed can adjust at any time, when hoisting crane runs to rail end; Start foot-operated filling pump in advance; Can alleviate the impact force between energy disperser and the safe stop effectively, reduce the amplitude of lifted weight swing, more help the accurate shipment of lifted weight.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (9)
1. that uses on the hoisting crane two initiatively walks wheel brake system, it is characterized in that: comprise total oil distributor (31), first oil distributor (45), second oil distributor (46), two drgs and be installed in the interior foot-operated filling pump of operator's compartment;
Said drg comprises base (1), left bracing frame (2), right bracing frame (3), left brake shoe (4), right brake shoe (5), double end screw mandrel (6), first oil cylinder (8) and second oil cylinder (9); The top of said left bracing frame (2) and right bracing frame (3) has a bearing pin (7) with threaded hole respectively; The two ends of said double end screw mandrel (6) screw respectively in the tapped bore of the bearing pin (7) on left bracing frame (2) and right bracing frame (3); The bottom of said left bracing frame (2) and right bracing frame (3) is hinged on respectively on the left and right sides of base (1); The rotating left bracing frame (2) that is connected in the bottom of said left brake shoe (4) is gone up on the left main shaft (10) of horizontally set; The rotating right bracing frame (3) that is connected in the bottom of said right brake shoe (5) is gone up on the right main shaft (11) of horizontally set; Said first oil cylinder (8) is installed in the middle part of left bracing frame (2); The middle part of the end of the piston of first oil cylinder (8) and left brake shoe (4) flexibly connects, and said second oil cylinder (9) is installed in the middle part of right bracing frame (3), and the middle part of the end of the piston of second oil cylinder (9) and right brake shoe (5) flexibly connects;
The oil outlet of said foot-operated filling pump is connected with the oil inlet of first oil distributor (45) with second oil distributor (46) respectively through total oil distributor (31); First oil distributor (45) is connected with first oil cylinder (8) of one of them drg and the oil inlet of second oil cylinder (9), and second oil distributor (46) is connected with first oil cylinder (8) of another drg and the oil inlet of second oil cylinder (9).
2. the two wheel brake systems of initiatively walking that use on the hoisting crane according to claim 1; It is characterized in that: said drg also comprises left brake-shoe link (12) and right brake-shoe link (13); The bottom-hinged of said left brake-shoe link (12) is on left main shaft (10); The fixing left brake shoe axle (14) at the middle part of left brake-shoe link (12); The middle part of left side brake shoe (4) is hinged on the left brake shoe axle (14), and the end of the piston of said first oil cylinder (8) and left brake shoe axle (14) are hinged; The bottom-hinged of said right brake-shoe link (13) is on right main shaft (11); The fixing right brake shoe axle (15) at the middle part of right brake-shoe link (13); The middle part of right brake shoe (5) is hinged on the right brake shoe axle (15), and the end of the piston of said second oil cylinder (9) and right brake shoe axle (15) are hinged.
3. that uses on the hoisting crane according to claim 1 and 2 two initiatively walks wheel brake system, and it is characterized in that: said first oil cylinder (8) and second oil cylinder (9) comprise cylinder body (16), piston (17), spring (20) respectively and be installed in the oil cylinder cover (18) on cylinder body (16) end face; Said piston (17) is arranged in the piston hole (19) of cylinder body (16) and with the inner wall sealing of cylinder body (16) and cooperates; Piston hole wall near oil cylinder cover (18) is provided with annular chamber (21); Said piston (17) radially outward forms an annular boss (22) near an end of oil cylinder cover (18) along it, and annular boss (22) is positioned at annular chamber (21); Said spring (20) is enclosed within on the piston (17), and an end is pressed on the medial extremity of annular chamber (21), and the other end is pressed on the annular boss (22); Said oil cylinder cover (18) is provided with oil inlet (23) and deflation hole (24).
4. that uses on the hoisting crane according to claim 3 two initiatively walks wheel brake system, it is characterized in that: be provided with wear-resisting band (25) between the hole wall two ends of said piston hole (19) and the piston (17).
5. that uses on the hoisting crane according to claim 4 two initiatively walks wheel brake system, it is characterized in that: be provided with seal ring (26) between the annular boss (22) on the hole wall of said piston hole (19) and the piston (17).
6. that uses on the hoisting crane according to claim 5 two initiatively walks wheel brake system, it is characterized in that: be provided with dust ring (27) between the hole wall of said piston (17) near outer end and piston hole (19).
7. that uses on the hoisting crane according to claim 1 and 2 two initiatively walks wheel brake system, and it is characterized in that: said foot-operated filling pump comprises box body (32), torque spring (33), the 3rd oil cylinder, stretcher (34), rotating shaft (35) and drive spindle (36); Said rotating shaft (35) pass box body (32) and with box body (32) normal-running fit, the cylinder body of said the 3rd oil cylinder (37) penetrates in the box body (32), the piston of the 3rd oil cylinder (38) is positioned at box body (32) and vertical with rotating shaft (35); Said stretcher (34) is fixed on the cylindrical of rotating shaft (35) and is positioned at outside the box body (32); Said drive spindle (36) is perpendicular to rotating shaft (35); One end of drive spindle (36) is fixed in the rotating shaft (35), the other end pass the 3rd oil cylinder piston (38) and with its free-running fit; Said torque spring (33) is enclosed within the rotating shaft (35), and an end of torque spring (33) is fixed on the box body (32), and the other end is fixed in the rotating shaft (35); Oil inlet of said the 3rd oil cylinder (39) and oil outlet (40) are positioned at outside the box body (32).
8. the two wheel brake systems of initiatively walking that use on the hoisting crane according to claim 7; It is characterized in that: the oil inlet of said the 3rd oil cylinder (39) is near box body (32), and the oil outlet of said the 3rd oil cylinder (40) is arranged on the outer end of the cylinder body (37) of the 3rd oil cylinder.
9. the two wheel brake systems of initiatively walking that use on the hoisting crane according to claim 8; It is characterized in that: the piston of said the 3rd oil cylinder (38) is provided with chute (41) along its axial direction, the other end of drive spindle (36) pass chute (41) and with chute (41) free-running fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200711141U CN202465082U (en) | 2012-02-29 | 2012-02-29 | Double-driving travelling wheel braking system applied to crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200711141U CN202465082U (en) | 2012-02-29 | 2012-02-29 | Double-driving travelling wheel braking system applied to crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465082U true CN202465082U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200711141U Expired - Fee Related CN202465082U (en) | 2012-02-29 | 2012-02-29 | Double-driving travelling wheel braking system applied to crane |
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| Country | Link |
|---|---|
| CN (1) | CN202465082U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152014A (en) * | 2015-06-17 | 2015-12-16 | 南京邮电大学 | Horizontal-direction auxiliary braking method for container crane |
| CN106907378A (en) * | 2017-04-12 | 2017-06-30 | 广西开元机器制造有限责任公司 | A kind of small-sized caterpillar belt churning driven rotary machine locking mechanism and process |
| CN109205496A (en) * | 2017-07-03 | 2019-01-15 | 佛山天锦科贸机械有限公司 | A kind of portal crane rotary pneumatic brake actuator |
| CN113233341A (en) * | 2021-05-07 | 2021-08-10 | 谷丰 | Double-beam portal crane capable of safely adjusting spacing |
-
2012
- 2012-02-29 CN CN2012200711141U patent/CN202465082U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152014A (en) * | 2015-06-17 | 2015-12-16 | 南京邮电大学 | Horizontal-direction auxiliary braking method for container crane |
| CN105152014B (en) * | 2015-06-17 | 2017-03-01 | 南京邮电大学 | A kind of method for container crane horizontal direction auxiliary braking |
| CN106907378A (en) * | 2017-04-12 | 2017-06-30 | 广西开元机器制造有限责任公司 | A kind of small-sized caterpillar belt churning driven rotary machine locking mechanism and process |
| CN109205496A (en) * | 2017-07-03 | 2019-01-15 | 佛山天锦科贸机械有限公司 | A kind of portal crane rotary pneumatic brake actuator |
| CN109205496B (en) * | 2017-07-03 | 2024-01-26 | 佛山天锦科贸机械有限公司 | Rotary pneumatic brake of port crane |
| CN113233341A (en) * | 2021-05-07 | 2021-08-10 | 谷丰 | Double-beam portal crane capable of safely adjusting spacing |
| CN113233341B (en) * | 2021-05-07 | 2023-10-13 | 合肥恺文重工机械有限公司 | But double-beam gantry crane of safe regulation interval |
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