CN102849633A - Anti-breakage device of steel wire rope for crane boom - Google Patents
Anti-breakage device of steel wire rope for crane boom Download PDFInfo
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- CN102849633A CN102849633A CN2012103894685A CN201210389468A CN102849633A CN 102849633 A CN102849633 A CN 102849633A CN 2012103894685 A CN2012103894685 A CN 2012103894685A CN 201210389468 A CN201210389468 A CN 201210389468A CN 102849633 A CN102849633 A CN 102849633A
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- rotationally connected
- steel wire
- wire rope
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Abstract
The invention relates to an anti-breakage device of a steel wire rope for a crane boom. The anti-breakage device is arranged on a tower head cross beam and is connected with two steel wire ropes. The anti-breakage device comprises a support, a rotating joint and a rotating plate, wherein the support is fixedly connected with the tower head cross beam; the rotating joint is rotationally connected with the support in a rotational direction around a Y-axis; the rotating plate is rotationally connected with the rotating joint in a rotational direction around an X-axis; and the Y-axis is perpendicular to the X-axis; and the steel wire rope is connected with the rotating plate. According to the anti-breakage device, when one steel wire rope is broken, the rotating plate rotates in a reciprocation mode in a short time because of unbalance, but is stopped because of the dragging of another steel wire rope immediately; as the steel wire rope is fixed by the anti-breakage device, a crane boom frame is prevented from falling back; the impact caused by the sudden breakage of the steel wire rope is buffered through the rotation of the rotating plate, so that the force losing direction disaccords with the movement direction of the rotating plate, the direct impact of the anti-breakage device caused by the sudden breakage of the steel wire rope is buffered greatly, and the security of a whole system is improved.
Description
Technical field
The present invention relates to the steel wire rope fracture prevention device, be specifically related to the steel wire rope fracture prevention device of the elevator machinery arm pitching such as shore container crane, grab bucket ship unloader.
Background technology
The handling equipment of harbour bulk goods and container wharf are mainly take shore container crane and grab bucket ship unloader as main, these two kinds of type jibs often need to lift, and jib lift or set level return by being realized by steel rope pitching driving system, and steel rope is owing to being in for a long time strained condition, phenomenon of rupture appears sometimes, in a single day the crane arm jib will drop as rupturing, cause safety misadventure, in order to prevent the generation of this class accident, the transmission of generally adopting the pitching driving system by two steel ropes and corresponding two groups of pulleys and steel wire rope fracture prevention installation composition of redundance type the crane arm jib upwards to be steeved or fall after rise downwards.
Existing bow its structure of driving system such as Fig. 1 of facing upward, mainly by facing upward the reel 103 of bowing, steel rope 104 and pulley 101,102 form.Two groups of pulley 101 symmetries are connected on the top of jib, and every group of 3 pulley distribute along the jib Width, also are provided with two groups of corresponding pulleys 102 on the tower head crossbeam of hoisting crane, and the larger distance of being separated by between two groups of pulleys, in order to place an anti-off device 108.Every group of pulley arranged outside one leading sheave 105 on the tower head crossbeam and a changed course pulley 106.Two steel ropes 104 twine respectively each corresponding one group pulley, and the one end is connected to be faced upward on the reel 107 of bowing.Each steel rope 104 is with the pulley 102 on the tower head crossbeam and the pulley 101 alternate modes on the jib, from the pulley that is arranged in center pulley each pulley of corresponding one group of solderless wrapped connection one by one laterally, the other end of steel rope 104 is drawn from outermost leading sheave 105 to changed course pulley 106, finally be connected to an end of anti-off device 108.
Above-mentioned steel wire rope fracture prevention device exists such defective: the first, buffering clamping plate mistake force direction in the anti-off device and moving direction are all on a straight line direction, so the buffering clamping plate are still larger to the impulsive force of cushioning support-saddle, thereby reduced the safety of driving system.It two is, lateral dimension is large, so that the pitching drive system structure is complicated, take up room large, and the space of having reduced tower head, the installation of steel rope, replacing and maintenance be difficulty relatively all.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, a kind of compact conformation is provided, makes steel rope and the pulley strained condition is good and the better rotor plate of safety and adopt a kind of steel wire rope fracture prevention device for crane arm of this rotor plate.
Rotor plate of the present invention is provided with first and is rotationally connected hole and two steel rope connecting bores, and the pitch-row that two steel rope connecting bores to the first are rotationally connected the hole is identical, and two steel rope connecting bore centers respectively with the angle α angle of the line that the center forms that is rotationally connected the hole.
According to rotor plate of the present invention, it is characterized in that described α angle is not more than 6 °.
According to rotor plate of the present invention, it is characterized in that described rotor plate is in the shape of the letter V, describedly be rotationally connected the serrated end that this V font plate bottom is located in the hole, described silk rope connecting bore is located at two of this V font plate top and is dispersed end.
The invention still further relates to a kind of steel wire rope fracture prevention device for crane arm.
Described steel wire rope fracture prevention device, be arranged on the tower head crossbeam and connect two steel ropes, described anti-off device comprises bearing, steering knuckle and rotor plate, described bearing is fixedly connected on the described tower head crossbeam, described steering knuckle is by being rotationally connected with bearing around the Y-axis hand of rotation, described rotor plate is by being rotationally connected with steering knuckle around the X-axis hand of rotation, and Y-axis is perpendicular to X-axis, and described steel rope is connected with rotor plate.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described rotor plate is provided with first and is rotationally connected hole and two steel rope connecting bores, the pitch-row that two steel rope connecting bores to the first are rotationally connected the hole is identical, and two steel rope connecting bore centers respectively with the angle α angle of the line that the center forms that is rotationally connected the hole.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described α angle is not more than 6 °.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described rotor plate is in the shape of the letter V, describedly be rotationally connected the serrated end that this V font plate bottom is located in the hole, described silk rope connecting bore is located at two of this V font plate top and is dispersed end.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described steering knuckle is provided with that second of centered by Y-axis line is rotationally connected the hole and centered by X-axis line the 3rd be rotationally connected the hole, steering knuckle is rotationally connected hole and bearing pin and described bearing by described second and is rotationally connected, and is rotationally connected hole and bearing pin and described rotor plate by the described the 3rd and is rotationally connected.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described steering knuckle is comprised of two first rotor plates and two second rotor plates, the first rotor plate is provided with two parallel phases slot and second across a certain distance and is rotationally connected the hole, the second rotor plate is provided with the 3rd and is rotationally connected the hole, and two parallel the second rotor plates are vertical to be inserted in the described slot of two the first rotor plates parallel and separated by a distance.
According to a kind of steel wire rope fracture prevention device for crane arm of the present invention, it is characterized in that described steel rope is connected with rotor plate with the steel rope connecting bore by the collar, shackle.
Anti-off device provided by the present invention, after the steel cable fracture, rotor plate is because of the unbalance reciprocating rotation that produces the short time, but be subject to very soon the pulling of another root steel rope and stop, this side steel rope is fixed by anti-off device, prevented the falling of elevator boom rack, the present invention comes the suddenly formed impact of fracture of buffer rope by the rotation of rotor plate, make mistake force direction and rotor plate sense of motion inconsistent, greatly alleviated anti-off device because of the suddenly formed direct impact of fracture of steel rope, the safety that has improved whole system.Each pulley of steel rope and solderless wrapped connection all keeps larger cornerite simultaneously, makes pulley stressed evenly, has reduced the mutual friction force of steel rope and pulley, the service life of having improved steel rope and pulley.Anti-off device can be done the rotation of space three-dimensional in addition, can automatically adjust best loading angle, makes steel rope and pulley remain good strained condition.Have again, anti-off device of the present invention also makes system structure and the wirerope-winding circuit of steel rope pitching transmission system of jib more succinct, two leading sheaves and two changed course pulleys have been omitted, make its compact conformation simple, lateral dimension reduces greatly, saved the tower head space, with installation, replacing and the maintenance that makes things convenient for steel rope, wirerope-winding is convenient simultaneously.
Description of drawings
Fig. 1 is the wirerope-winding mode schematic diagram of existing pitching driving system.
Fig. 2 is that A in the wirerope-winding mode schematic diagram shown in Figure 1 is to view.
Fig. 3 is the structural representation of steel wire rope fracture prevention device of the present invention.
Fig. 4 is the birds-eye view of anti-off device shown in Figure 3.
Fig. 5 is the structural representation of rotor plate.
Fig. 6 is the structural representation of steering knuckle.
Fig. 7 is the birds-eye view of steering knuckle shown in Figure 6.
Fig. 8 is the steel rope pitching driving system of a bank elevator boom rack
Fig. 9 is the schematic diagram that steel wire rope fracture prevention device of the present invention is used for steel rope pitching driving system shown in Figure 8.
Among the figure, reel is faced upward at 11 mansions, 12 steel wire rope fracture prevention devices, 13 steel ropes, 14 tower head pulleys, 15 jib pulleys, 16 collars, 17 shackles, 30 Gantry Cranes, 31 jibs, 32 tower head crossbeams, 40 steel wire rope fracture prevention devices, 41 bearings, 42 steering knuckles, 42a second is rotationally connected the hole, 42b the 3rd is rotationally connected the hole, 42c the first deflecting plate, 42d the second deflecting plate, the 42e slot, 43 rotor plates, 43a first is rotationally connected the hole, 43b two steel rope connecting bores, 44 bearing pins, 101,102 pulleys, 103 reels of bowing, 104 steel ropes, 105 leading sheaves, 106 changed course pulleys, 107 pitching reels, 108 anti-off devices, cushion 111 bearings, 112 supports, wear-resistant block 113.
The specific embodiment
Contrast Fig. 3, Fig. 4, steel wire rope fracture prevention device 40 comprises bearing 41, steering knuckle 42 and rotor plate 43.Bearing 41 is fixedly connected on the tower head crossbeam 32, and steering knuckle is by being rotationally connected with bearing 41 around the Y-axis hand of rotation, and rotor plate 43 is by being rotationally connected with steering knuckle around the X-axis hand of rotation, and Y-axis makes rotor plate 43 can do three-dimensional rotation perpendicular to X-axis.
Contrast Fig. 5, the rotor plate 43 of the present embodiment is in the shape of the letter V, which is provided with first and be rotationally connected hole 43a and two steel rope connecting bore 43b, be rotationally connected the serrated end that hole 43a is located at this plate bottom that is in the shape of the letter V, steel rope connecting bore 43b is located at two of this V font plate top and disperses end.The pitch-row that two steel rope connecting bore 43b to the first are rotationally connected hole 43a is identical, and two steel rope connecting bore 43b centers are not more than 6 ° with the angle α of the line that the center forms that is rotationally connected hole 43a respectively.Those skilled in the art determined first be rotationally connected the position of hole 43a and two steel rope connecting bore 43b after, rotor plate can be designed to its shape as required, therefore rotor plate of the present invention is not limited to this embodiment.
Contrast Fig. 6, Fig. 7, steering knuckle 42 is provided with second being rotationally connected hole 42a and the 3rd being rotationally connected hole 42b take X-axis as centerline hole take Y-axis as centerline hole, because Y-axis is mutually vertical with X-axis, so second be rotationally connected hole 42a and the 3rd to be rotationally connected hole 42b mutually vertical.Steering knuckle 42 is rotationally connected hole 42a, bearing pin 44 by second and is rotationally connected with bearing 41, and is rotationally connected hole 42b and bearing pin 12 is rotationally connected with above-mentioned rotor plate 43 by the 3rd.
Contrast Fig. 8, above-mentioned steel wire rope fracture prevention device is placed the steel rope pitch drive mechanism of elevator boom rack 31 of a hoisting crane on bank, this pitching driving system mainly is comprised of a pitching reel 11, a steel wire rope fracture prevention device 40, two steel ropes 13, three tower head pulleys 14 and three corresponding jib pulleys 15, referring to Fig. 9.Pitching reel 11 is fixed on the hoist frame, and by corresponding speed reduction gearing and driven by motor.Two groups of jib pulleys 15 are symmetrically placed in jib 31 upper ends, and along the setting of its width (perpendicular to paper) direction.Every group of jib pulley comprises three jib pulleys 15, is connected to side by side on the Width of jib equally spacedly.On tower head crossbeam 32, also connect two groups of corresponding tower head pulleys 14.Same two groups of tower head pulleys 14 are symmetrically placed on the tower head crossbeam, and every group has 3 tower head pulleys 14 to be arranged in side by side on the tower head crossbeam 32 equally spacedly along tower head crossbeam length direction.Each pulley that the 13 difference solderless wrapped connections of two steel ropes are corresponding one group, the mode of its solderless wrapped connection is: an end of steel rope 13 is connected on the pitching reel 11, the solderless wrapped connection of this steel rope elder generation be positioned at the outermost tower head pulley 14 of tower head crossbeam then solderless wrapped connection downwards be positioned at jib 31 outermost jib pulleys 15, the solderless wrapped connection that then makes progress is positioned at a tower head pulley 14 of above-mentioned tower head pulley inboard, press like this tower head pulley mode alternate with the jib pulley, from outside pulley to center pulley solderless wrapped connection, the other end of two steel ropes is converged to tower head crossbeam middle part, finally be connected on the anti-off device 12 that is positioned at two groups of pulley center.
When needs are steeved jib 31 (the position II among Fig. 3), the mansion is faced upward reel 11 and is rotated, constantly Wound steel rope 13 makes it to pack up, steel rope 13 drives each pulley and rotates, constantly rolled-up along with steel rope 13, all pulley 15 upward movements drive jib 31 continuous upwards rotations until steeve fully, approximately are 80 ° angle with the angle of level attitude.When getting back to level attitude from this position of steeving, rely on equally the mansion to face upward reel 11 and rotate, face upward reel 11 and constantly emit steel rope by rotating, jib 31 rotates until be in the control position (the position I among Fig. 3) of level under the effect of deadweight.When jib 31 is in running order, rupture if any steel cable, rotor plate 42 1 sides are lost power and are broken original state of equilibrium, another root steel rope will rotate around it center rotating with rotor plate, the impact that buffering forms because of a side wire cable rupture, and pull the firmly steel rope of opposite side, effectively prevent dropping of jib.From Fig. 9, can know and find out, steel wire rope fracture prevention device of the present invention greatly reduces horizontal (along the length direction of the tower head crossbeam 32) size of pitching driving system shown in this Fig, saved the tower head space, with installation, replacing and the maintenance that makes things convenient for steel rope, wirerope-winding is convenient simultaneously.
Claims (10)
- A crane arm the steel wire rope fracture prevention device in rotor plate, it is characterized in that described rotor plate is provided with first and is rotationally connected hole and two steel rope connecting bores, the pitch-row that two steel rope connecting bores to the first are rotationally connected the hole is identical, and two steel rope connecting bore centers form angle α with the center that is rotationally connected the hole respectively.
- A kind of crane arm according to claim 1 the steel wire rope fracture prevention device in rotor plate, it is characterized in that described angle α is not more than 6 °.
- A kind of crane arm according to claim 1 the steel wire rope fracture prevention device in rotor plate, it is characterized in that described rotor plate is in the shape of the letter V, describedly be rotationally connected the serrated end that this V font plate bottom is located in the hole, described silk rope connecting bore is located at two of this V font plate top and is dispersed end.
- 4. steel wire rope fracture prevention device that is used for crane arm, arrange on the tower head crossbeam and connect two steel ropes, it is characterized in that described anti-off device comprises bearing, steering knuckle and rotor plate, described bearing is fixedly connected on the described tower head crossbeam, described steering knuckle is by being rotationally connected with bearing around the Y-axis hand of rotation, described rotor plate is by being rotationally connected with steering knuckle around the X-axis hand of rotation, and Y-axis is perpendicular to X-axis, and described steel rope is connected with rotor plate.
- 5. a kind of steel wire rope fracture prevention device for crane arm according to claim 4, it is characterized in that described rotor plate is provided with first and is rotationally connected hole and two steel rope connecting bores, the pitch-row that two steel rope connecting bores to the first are rotationally connected the hole is identical, and two steel rope connecting bore centers form angle α with the center that is rotationally connected the hole respectively.
- 6. a kind of steel wire rope fracture prevention device for crane arm according to claim 5, described angle α is not more than 6 °.
- 7. a kind of steel wire rope fracture prevention device for crane arm according to claim 5, described rotor plate is in the shape of the letter V, and describedly is rotationally connected the serrated end that this V font plate bottom is located in the hole, and described silk rope connecting bore is located at two of this V font plate top and is dispersed end.
- 8. each described a kind of steel wire rope fracture prevention device for crane arm according to claim 4～7, it is characterized in that described steering knuckle is provided with that second of centered by Y-axis line is rotationally connected the hole and centered by X-axis line the 3rd be rotationally connected the hole, steering knuckle is rotationally connected hole and bearing pin and described bearing by described second and is rotationally connected, and is rotationally connected hole and bearing pin and described rotor plate by the described the 3rd and is rotationally connected.
- 9. a kind of steel wire rope fracture prevention device for crane arm according to claim 8, it is characterized in that described steering knuckle is comprised of two first rotor plates and two second rotor plates, the first rotor plate is provided with two parallel phases slot and second across a certain distance and is rotationally connected the hole, the second rotor plate is provided with the 3rd and is rotationally connected the hole, and two parallel the second rotor plates are vertical to be inserted in the described slot of two the first rotor plates parallel and separated by a distance.
- 10. each described a kind of steel wire rope fracture prevention device for crane arm is characterized in that described steel rope is connected with rotor plate with the steel rope connecting bore by the collar, shackle according to claim 4～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103894685A CN102849633A (en) | 2012-10-15 | 2012-10-15 | Anti-breakage device of steel wire rope for crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103894685A CN102849633A (en) | 2012-10-15 | 2012-10-15 | Anti-breakage device of steel wire rope for crane boom |
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| CN102849633A true CN102849633A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103894685A Pending CN102849633A (en) | 2012-10-15 | 2012-10-15 | Anti-breakage device of steel wire rope for crane boom |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108710U (en) * | 1991-10-29 | 1992-07-01 | 张志义 | Safety device for preventing breaking rop |
| JP3375809B2 (en) * | 1995-12-27 | 2003-02-10 | 川崎製鉄株式会社 | Life judgment method of wire rope for crane |
| CN201473237U (en) * | 2009-09-02 | 2010-05-19 | 青岛港（集团）有限公司 | Safety device of jib frame of door machine |
| CN101823631A (en) * | 2010-04-22 | 2010-09-08 | 青岛港（集团）有限公司 | Protective device of elevating mechanism of stacker-reclaimer |
| CN202912600U (en) * | 2012-10-15 | 2013-05-01 | 江苏省交通科学研究院股份有限公司 | Anti-breaking device for steel wire ropes of hoisting boom |
-
2012
- 2012-10-15 CN CN2012103894685A patent/CN102849633A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108710U (en) * | 1991-10-29 | 1992-07-01 | 张志义 | Safety device for preventing breaking rop |
| JP3375809B2 (en) * | 1995-12-27 | 2003-02-10 | 川崎製鉄株式会社 | Life judgment method of wire rope for crane |
| CN201473237U (en) * | 2009-09-02 | 2010-05-19 | 青岛港（集团）有限公司 | Safety device of jib frame of door machine |
| CN101823631A (en) * | 2010-04-22 | 2010-09-08 | 青岛港（集团）有限公司 | Protective device of elevating mechanism of stacker-reclaimer |
| CN202912600U (en) * | 2012-10-15 | 2013-05-01 | 江苏省交通科学研究院股份有限公司 | Anti-breaking device for steel wire ropes of hoisting boom |
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Application publication date: 20130102 |