CN102923604A - Load cable automatic tensioning device for crane and installation method thereof - Google Patents
Load cable automatic tensioning device for crane and installation method thereof Download PDFInfo
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- CN102923604A CN102923604A CN2012104535158A CN201210453515A CN102923604A CN 102923604 A CN102923604 A CN 102923604A CN 2012104535158 A CN2012104535158 A CN 2012104535158A CN 201210453515 A CN201210453515 A CN 201210453515A CN 102923604 A CN102923604 A CN 102923604A
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Abstract
The invention discloses a load cable automatic tensioning device for a crane and an installation method of the automatic tensioning device. The load cable automatic tensioning device comprises support plates, a spring positioning device, a shaft A, a shaft B, an upper pawl, a lower pawl, an upper ratchet, a lower ratchet, a rope winding wheel and a conical-vertex nut. The conical-vertex nut is fixed at the top end of the shaft A, a sliding sleeve A is arranged at the connection position of the shaft A and an upper support plate, and a sliding sleeve C is arranged at the connection position of the shaft A and a lower support plate. The upper end surface and the lower end surface of the upper ratchet are respectively provided with a sliding pad A, and the upper ratchet is fixedly connected with the shaft A through a key. The rope winding wheel is fixed on the upper end face of the lower ratchet through a bolt. The lower end face of the lower ratchet is provided with a sliding pad C. A volute spiral spring is fixed inside a cavity of the rope winding wheel through a positioning pin, and the other end of the volute spiral spring is fixedly connected with the shaft A. Through the technical scheme, the pawl-ratchet mechanism, the volute spiral spring, a cylinder spring and the like are used in the load cable automatic tensioning device, and therefore a one-way transmission function and an automatic tensioning function of the load cable automatic tensioning device are achieved, at the same time, the load cable automatic tensioning device is high in safety and reliability and convenient to operate, and the problems existing in the prior art are completely solved.
Description
Technical field
The present invention relates to for the hoisting crane trailer coupling, be specially adapted to have the automatic steel wire rope tension device of the traction mechanism for crane trolley of steel rope automatic tensioning function requirement.
Background technology
The operating unit of conventional hoist can't be arranged together with running trolley the time, adopts the form of rope traction when occurring that the operation driver train is subjected to the actual condition restriction usually.But the steel wire rope stretching device that the conventional hoist trailer coupling is equipped with can't carry out auto-tensioning, and adjusts inconvenient.
Particularly in some special use occasions such as nuclear stations, existing hoisting crane trailer coupling steel wire rope stretching device because of can't auto-tensioning and adjust the problems of being inconvenient to cause, seems particularly outstanding.
Therefore, develop a kind of safe, hoisting crane trailer coupling automatic steel wire rope tension device that reliability is high and easy to operate, become technical barrier anxious to be resolved.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of by adopting ratchet and pawl arrangement, and volute spiral spring and cylindrical spring etc., single-direction transmission and the automatic tensioning function of this device have been realized, have simultaneously high security and high reliability, easy to operate, thoroughly solved the existing problem of prior art.
For reaching above purpose, be achieved through the following technical solutions:
A kind of hoisting crane haulage cable automatic takeup comprises: stay bearing plate, spring-positioning device, axle A, axle B, upper ratchet, lower ratchet, upper ratchet, bottom ratchet wheel, bull wheel and vertex of a cone nut; Stay bearing plate is comprised of upper backup pad and lower supporting plate, and upper backup pad and lower supporting plate are processed with the axis hole for installation shaft A and axle B; Close by bolt group handle between upper backup pad and the lower supporting plate; Vertex of a cone nut is fixed on axle A top by pin; Axle A and upper backup pad junction are provided with sliding sleeve A, are provided with sliding sleeve C with the lower supporting plate junction; Upper ratchet, bull wheel and bottom ratchet wheel are nested with successively on axle A, and are positioned at upper backup pad and lower supporting plate interval; Upper ratchet upper surface and lower surface are provided with skidding A, and are connected and fixed by key and axle A; Bull wheel is fixed on the bottom ratchet wheel upper surface by bolt A, nut A and packing ring A cooperation closing; The bottom ratchet wheel lower surface is provided with skidding C; The bull wheel center is processed with cavity; Be fixed with volute spiral spring by locating dowel pin in the cavity of bull wheel, and the volute spiral spring other end is connected and fixed by slotted hole and the axle A of processing on axle A; The bull wheel outer wall is processed with for the fixing pyriform hole of steel rope;
Axle B is installed in the corresponding axis hole of stay bearing plate, and is detachably to captive joint with stay bearing plate; Upper ratchet and lower ratchet are nested with on axle B, and are positioned at upper backup pad and lower supporting plate interval; Be provided with spacer between upper ratchet and the lower ratchet; The upper and lower end face of upper ratchet and lower ratchet is provided with skidding B; Upper ratchet and lower ratchet and axle B junction are provided with sliding sleeve B;
Upper ratchet center and upper ratchet center in the same horizontal line, and upper ratchet can cooperate clamping with the external tooth of upper ratchet; Lower ratchet center and bottom ratchet wheel center in the same horizontal line, and lower ratchet can cooperate with the external tooth of bottom ratchet wheel clamping;
Upper backup pad lower surface and lower support version upper surface are fixed with for limiting upper ratchet and the lower ratchet spring-positioning device around the axle B anglec of rotation;
Spring-positioning device comprises: perpendicular to adapter plate, bolt B, stop screw, stop nut and the cylindrical spring of upper backup pad lower surface and lower supporting plate upper surface; Two place's adapter plates are connected and fixed with upper ratchet and lower ratchet respectively by two bolt B, and are equipped with respectively cylindrical spring on two bolt B; Two place's adapter plates are provided with and are respectively applied to limit ratchet and lower ratchet around two stop screws of the axle B anglec of rotation, and two stop screws stretch out in the length of adapter plate by two stop nuts control stop screws;
Be used for the bolt group of close stay bearing plate and lower supporting plate is comprised, band shoulder double end stud, be with the nut C that takes on the double end stud screw thread fit and the packing ring C that is arranged at nut C and contacts with two stay bearing plates end face.
The pyriform hole number of bull wheel outer wall is no less than 2; When the present invention's two steel ropes of hoisting crane in use, steel rope A and steel rope B are connected to respectively in two pyriform holes by the sling A of steel rope A end and the sling B of steel rope B end respectively;
Axle B lower end is connected to axis hole position, lower supporting plate lower surface, and the upper end is fixed by nut B and upper backup pad upper surface, and nut B and upper backup pad contact position are provided with packing ring B;
A kind of hoisting crane installation method of haulage cable automatic takeup, control step is as follows:
Step 1:
Four band shoulder double end studs are installed on the lower supporting plate, four groups of nut C and packing ring C are installed successively;
Step 2:
On lower supporting plate, sliding sleeve C and skidding C are installed, axle A is penetrated from bottom to top, by bolt A, nut A and packing ring A bottom ratchet wheel and bull wheel are fixed together, be installed in afterwards on the axle A, volute spiral spring is installed, axle A is provided with slotted hole, the inner termination that is used for the fixed scroll spring, the external end head of volute spiral spring is fixed by locating dowel pin, and skidding A is installed in being fixed on the bull wheel of locating dowel pin, and the location of the step by axle A, install afterwards the skidding A on ratchet, key and top;
Step 3:
Axle B is passed lower supporting plate, skidding B, sliding sleeve B, lower ratchet, skidding B, spacer, skidding B, sliding sleeve B, upper ratchet and skidding B are installed afterwards successively, sliding sleeve A is installed on the upper backup pad, be installed in together afterwards the upper end of axle A, axle B and four band shoulder double end studs with upper backup pad, be fixed by four groups of nut C and packing ring C, vertex of a cone nut is installed in the upper end of axle A, and by pin vertex of a cone nut and axle A is fixed together, successively packing ring B and nut B are installed in axle B end;
Step 4:
Two adapter plates are welded on respectively position corresponding with upper ratchet and lower ratchet on the stay bearing plate, afterwards, cylindrical spring, bolt B, stop screw and stop nut are installed, and are adjusted to respectively correct position;
Step 5:
Sling A is fixed on the end of steel rope A, and sling B is fixed on the end of steel rope B, and sling A and sling B are passed respectively the macropore in pyriform hole, bull wheel both sides, and is fixed on the aperture place.
Adopted the invention of technique scheme in use, by rotating counterclockwise vertex of a cone nut, driven successively upper ratchet and volute spiral spring inner termination and rotate, thereby make volute spiral spring curling, and with this torque storage.Upper ratchet cooperates with upper ratchet, prevents the ratchet backward rotation, and stop screw and stop nut play the secure localization effect;
Afterwards, the outer end of volute spiral spring drives bull wheel by locating dowel pin and bottom ratchet wheel rotates in the counterclockwise direction, and lower ratchet cooperates with bottom ratchet wheel, prevent bottom ratchet wheel and bull wheel backward rotation, simultaneously, bull wheel drives steel rope A and steel rope B twines at bull wheel, realizes the tensioning of steel rope.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification sheets, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is A-A cross-sectional view of the present invention.
Fig. 3 is B-B cross-sectional view of the present invention.
Fig. 4 is C-C cross-sectional view of the present invention.
Fig. 5 is D-D cross-sectional view of the present invention.
Fig. 6 is the main TV structure schematic diagram of spring-positioning device of the present invention.
Fig. 7 is the E-E cross-sectional view of spring inhibiting device of the present invention.
The specific embodiment
, comprising: stay bearing plate 1, spring-positioning device 2, axle A3, axle B4, upper ratchet 5, lower ratchet 6, upper ratchet 7, bottom ratchet wheel 8, bull wheel 9 and vertex of a cone nut 10 to a kind of hoisting crane haulage cable automatic takeup shown in Figure 7 such as Fig. 1; Stay bearing plate 1 is comprised of upper backup pad 1.1 and lower supporting plate 1.2, and upper backup pad 1.1 and lower supporting plate 1.2 are processed with the axis hole for installation shaft A3 and axle B4; Close by bolt group handle between stay bearing plate 1.1 and the stay bearing plate 1.2; Vertex of a cone nut 10 is fixed on axle A3 top by pin 11; Axle A3 and upper backup pad 1.1 junctions are provided with sliding sleeve A12, are provided with sliding sleeve C31 with lower supporting plate 1.2 junctions; Upper ratchet 7, bull wheel 9 and bottom ratchet wheel 8 are nested with successively on axle A3, and are positioned at upper backup pad 1.1 and lower supporting plate 1.2 intervals; Upper ratchet 7 upper surfaces and lower surface are provided with skidding A13, and are connected and fixed with axle A3 by key 27; Bull wheel 9 is fixed on bottom ratchet wheel 8 upper surfaces by bolt A16, nut A17 and packing ring A18 cooperation closing; Bottom ratchet wheel 8 lower surfaces are provided with skidding C30; Bull wheel 9 centers are processed with cavity; Be fixed with volute spiral spring 15 by locating dowel pin 14 in the cavity of bull wheel 9, and volute spiral spring 15 other ends are connected and fixed with axle A3 by the slotted hole 29 of processing on axle A3; Bull wheel 9 outer walls are processed with for the fixing pyriform hole 28 of steel rope;
Axle B4 is installed in the stay bearing plate 1 corresponding axis hole, and captive joint for detachable with stay bearing plate 1, be that axle B4 lower end is connected to axis hole position, lower supporting plate 1.2 lower surface, the upper end is fixed by nut B19 and upper backup pad 1.1 upper surfaces, and nut B19 and upper backup pad 1.1 contact positions are provided with packing ring B20; Upper ratchet 5 and lower ratchet 6 are nested with on axle B4, and are positioned at upper backup pad 1.1 and lower supporting plate 1.2 intervals; Be provided with spacer 35 between upper ratchet 5 and the lower ratchet 6; The upper and lower end face of upper ratchet 5 and lower ratchet 6 is provided with skidding B21; Upper ratchet 5 and lower ratchet 6 are provided with sliding sleeve B22 with axle B4 junction; Upper ratchet 5 centers and upper ratchet 7 centers in the same horizontal line, and upper ratchet 5 can cooperate clamping with the external tooth of upper ratchet 7; Lower ratchet 6 centers and bottom ratchet wheel 8 centers in the same horizontal line, and lower ratchet 6 can cooperate clamping as shown in Figure 3 with the external tooth of bottom ratchet wheel 8;
Upper backup pad 1.1 lower surfaces and lower supporting plate 1.2 upper surfaces are fixed with for the upper ratchet 5 of restriction and lower ratchet 6 around the spring-positioning device 2 of the axle B4 anglec of rotation as shown in Figure 4;
Spring-positioning device 2 comprises: perpendicular to adapter plate 2.1, bolt B 2.2, stop screw 2.3, stop nut 2.4 and the cylindrical spring 2.5 of upper backup pad 1.1 lower surfaces and lower supporting plate 1.2 lower surfaces; Two place's adapter plates 2.1 are connected and fixed with upper ratchet 5 and lower ratchet 6 respectively by two bolt B 2.2, and are equipped with respectively cylindrical spring 2.5 on two bolt B 2.2; Two place's adapter plates 2.1 are provided with and are respectively applied to limit ratchet 5 and lower ratchet 6 around two stop screws 2.3 of the axle B4 anglec of rotation, and two stop screws 2.3 stretch out in the length of adapter plate 2.1 such as Fig. 4 to shown in Figure 7 by two stop nuts, 2.4 control stop screws 2.3;
Be used for the bolt group of stay bearing plate 1.1 with lower supporting plate 1.2 of closing comprised, band shoulder double end stud 32, take on double end stud 32 screws thread fit with band nut C33 be arranged at nut C33 contacts end face with two stay bearing plates 1 packing ring C34 as shown in Figure 1;
A kind of hoisting crane installation method of haulage cable automatic takeup, control step is as follows:
Step 1:
Four band shoulder double end studs 32 are installed on the lower supporting plate 1.2, four groups of nut C33 and packing ring C34 are installed successively;
Step 2:
On lower supporting plate 1.2, sliding sleeve C31 and skidding C30 are installed, axle A3 is penetrated from bottom to top.By bolt A16, nut A17 and packing ring A18 bottom ratchet wheel 8 and bull wheel 9 are fixed together, are installed in afterwards on the axle A3.Volute spiral spring 15 is installed, and axle A3 is provided with slotted hole 29, is used for the inner termination of fixed scroll spring 15, and the external end head of volute spiral spring 15 is fixing by locating dowel pin 14, being fixed on the bull wheel 9 of locating dowel pin 14.Skidding A13 is installed, and locates by the step of axle A3, install afterwards the skidding A13 on ratchet 7, key 27 and top;
Step 3:
Axle B4 is passed lower supporting plate 1.2, skidding B21, sliding sleeve B22, lower ratchet 6, skidding B21, spacer 35, skidding B21, sliding sleeve B22, upper ratchet 5 and skidding B21 are installed afterwards successively.Sliding sleeve A12 is installed on the upper backup pad 1.1, is installed in together afterwards the upper end of axle A3, axle B4 and four band shoulder double end studs 32 with upper backup pad 1.1, be fixed by four groups of nut C33 and packing ring C34.Vertex of a cone nut 10 is installed in the upper end of axle A3, and by pin 11 vertex of a cone nut 10 and axle A3 is fixed together.Successively packing ring B20 and nut B19 are installed in axle B4 end;
Step 4:
Two adapter plates 2.1 are welded on respectively on the stay bearing plate 1 position corresponding with upper ratchet 5 and lower ratchet 6, afterwards, cylindrical spring 2.5, bolt B 2.2, stop screw 2.3 and stop nut 2.4 are installed, and are adjusted to respectively correct position;
Step 5:
Sling A24 is fixed on the end of steel rope A23, and sling B26 is fixed on the end of steel rope B25, sling A24 and sling B26 is passed respectively the macropore in pyriform hole, bull wheel 9 both sides 28, and be fixed on the aperture place;
The invention that the present invention has adopted technique scheme by rotating counterclockwise vertex of a cone nut 10, drives successively upper ratchet 7 and volute spiral spring 15 inner termination and rotates, thereby make volute spiral spring 15 curling in use, and with this torque storage.Upper ratchet 5 cooperates with upper ratchet 7, prevents ratchet 7 backward rotation, and stop screw 2.3 and stop nut 2.4 play the secure localization effect; Afterwards, the outer end of volute spiral spring 15 drives bull wheel 9 by locating dowel pin 14 and bottom ratchet wheel 8 rotates in the counterclockwise direction, lower ratchet 6 cooperates with bottom ratchet wheel 8, prevent bottom ratchet wheel 8 and bull wheel 9 backward rotation, simultaneously, bull wheel 9 drives steel rope A23 and steel rope B25 twines at bull wheel 9, realizes the tensioning of steel rope.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art are not within breaking away from the technical solution of the present invention scope, appeal the equivalent embodiment that the technology contents that discloses is made a little change or is modified to equivalent variations when utilizing, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a hoisting crane haulage cable automatic takeup is characterized in that: comprise stay bearing plate (1), spring-positioning device (2), axle A(3), axle B(4), upper ratchet (5), lower ratchet (6), upper ratchet (7), bottom ratchet wheel (8), bull wheel (9) and vertex of a cone nut (10); Described stay bearing plate (1) is comprised of upper backup pad (1.1) and lower supporting plate (1.2), and described upper backup pad (1.1) and lower supporting plate (1.2) are processed with for installation shaft A(3) and axle B(4) axis hole; Close by bolt group handle between described upper backup pad (1.1) and the lower supporting plate (1.2); Described vertex of a cone nut (10) is fixed on axle A(3 by pin (11)) top; Described axle A(3) be provided with sliding sleeve A(12 with upper backup pad (1.1) junction), be provided with sliding sleeve C(31 with lower supporting plate (1.2) junction); Described upper ratchet (7), bull wheel (9) and bottom ratchet wheel (8) are nested with successively at axle A(3) on, and be positioned at upper backup pad (1.1) and lower supporting plate (1.2) interval; Described upper ratchet (7) upper surface and lower surface are provided with skidding A(13), and by key (27) and axle A(3) be connected and fixed; Described bull wheel (9) is by bolt A(16), nut A(17) and packing ring A(18) cooperate and to be fixed on bottom ratchet wheel (8) upper surface closing; Described bottom ratchet wheel (8) lower surface is provided with skidding C(30); Described bull wheel (9) center is processed with cavity; Is fixed with volute spiral spring (15) by locating dowel pin (14) in the cavity of described bull wheel (9), and described volute spiral spring (15) other end is by processing at axle A(3) on slotted hole (29) and axle A(3) be connected and fixed; Described bull wheel (9) outer wall is processed with for the fixing pyriform hole (28) of steel rope;
Described axle B(4) is installed in the corresponding axis hole of stay bearing plate (1), and captives joint for detachable with stay bearing plate (1); Described upper ratchet (5) and lower ratchet (6) are nested with at axle B(4) on, and be positioned at upper backup pad (1.1) and lower supporting plate (1.2) interval; Be provided with spacer (35) between described upper ratchet (5) and the lower ratchet (6); The upper and lower end face of described upper ratchet (5) and lower ratchet (6) is provided with skidding B(21); Described upper ratchet (5) and lower ratchet (6) and axle B(4) junction is provided with sliding sleeve B(22);
Described upper ratchet (5) center and upper ratchet (7) center in the same horizontal line, and upper ratchet (5) can cooperate clamping with the external tooth of upper ratchet (7); Described lower ratchet (6) center and bottom ratchet wheel (8) center in the same horizontal line, and lower ratchet (6) can cooperate with the external tooth of bottom ratchet wheel (8) clamping;
Described upper backup pad (1.1) lower surface and lower supporting plate (1.2) upper surface are fixed with for the upper ratchet (5) of restriction and lower ratchet (6) around axle B(4) spring-positioning device (2) of the anglec of rotation;
Described spring-positioning device (2) comprising: perpendicular to adapter plate (2.1), bolt B (2.2), stop screw (2.3), stop nut (2.4) and the cylindrical spring (2.5) of upper backup pad (1.1) lower surface and lower supporting plate (1.2) upper surface; Described two place's adapter plates (2.1) are connected and fixed with upper ratchet (5) and lower ratchet (6) respectively by two bolt B (2.2), and are equipped with respectively cylindrical spring (2.5) on two bolt B (2.2); Described two place's adapter plates (2.1) are provided with and are respectively applied to limit ratchet (5) and lower ratchet (6) around axle B(4) two stop screws (2.3) of the anglec of rotation, and described two stop screws (2.3) stretch out in the length of adapter plate (2.1) by two stop nuts (2.4) control stop screws (2.3).
2. a kind of hoisting crane haulage cable automatic takeup according to claim 1, it is characterized in that: described for the bolt group of close stay bearing plate (1.1) and lower supporting plate (1.2) is comprised, band shoulder double end stud (32), take on the nut C(33 of double end stud (32) screw thread fit with band) be arranged at nut C(33) contact the packing ring C(34 of end face with two stay bearing plates (1)).
3. a kind of hoisting crane haulage cable automatic takeup according to claim 1, it is characterized in that: pyriform hole (28) quantity of described bull wheel (9) outer wall is no less than 2; As the present invention's two steel ropes of hoisting crane in use, steel rope A(23) and steel rope B(25) respectively by steel rope A(23) terminal sling A(24) and steel rope B(25) the sling B(26 of end) be connected to respectively in two pyriform holes (28).
4. a kind of hoisting crane haulage cable automatic takeup according to claim 1, it is characterized in that: described axle B(4) lower end is connected to axis hole position, lower supporting plate (1.2) lower surface, the upper end is by nut B(19) fix with upper backup pad (1.1) upper surface, and described nut B(19) be provided with packing ring B(20 with upper backup pad (1.1) contact position).
5. a kind of hoisting crane according to claim 1 is with the installation method of haulage cable automatic takeup, and it is characterized in that: described control step is as follows:
Step 1:
Four band shoulder double end studs (32) are installed on the lower supporting plate (1.2), four groups of nut C(33 are installed successively) and packing ring C(34);
Step 2:
On lower supporting plate (1.2), sliding sleeve C(31 is installed) and skidding C(30), with axle A(3) penetrate from bottom to top.By bolt A(16), nut A(17) and packing ring A(18) bottom ratchet wheel (8) and bull wheel (9) are fixed together, be installed in afterwards axle A(3) on.Volute spiral spring (15), axle A(3 are installed) be provided with slotted hole (29), be used for the inner termination of fixed scroll spring (15), the external end head of volute spiral spring (15) is fixing by locating dowel pin (14), being fixed on the bull wheel (9) of locating dowel pin (14).Skidding A(13 is installed), and by axle A(3) the step location, install afterwards the skidding A(13 on ratchet (7), key (27) and top);
Step 3:
With axle B(4) pass lower supporting plate (1.2), skidding B(21 is installed afterwards successively), sliding sleeve B(22), lower ratchet (6), skidding B(21), spacer (35), skidding B(21), sliding sleeve B(22), upper ratchet (5) and skidding B(21).With sliding sleeve A(12) be installed on the upper backup pad (1.1), afterwards and upper backup pad (1.1) be installed in together axle A(3), axle B(4) and the upper ends of four band shoulder double end studs (32), by four groups of nut C(33) and packing ring C(34) be fixed.Vertex of a cone nut (10) is installed in axle A(3) the upper end, and by pin (11) with vertex of a cone nut (10) and axle A(3) be fixed together.Successively with packing ring B(20) and nut B(19) be installed in axle B(4) end;
Step 4:
Two adapter plates (2.1) are welded on respectively the upper position corresponding with upper ratchet (5) and lower ratchet (6) of stay bearing plate (1), afterwards, cylindrical spring (2.5), bolt B (2.2), stop screw (2.3) and stop nut (2.4) are installed, and are adjusted to respectively correct position;
Step 5:
Sling A(24) be fixed on steel rope A(23) the end, sling B(26) be fixed on steel rope B(25) the end, with sling A(24) and sling B(26) pass respectively the macropore in pyriform holes, bull wheel (9) both sides (28), and be fixed on the aperture place.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453515.8A CN102923604B (en) | 2012-11-13 | 2012-11-13 | Load cable automatic tensioning device for crane and installation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453515.8A CN102923604B (en) | 2012-11-13 | 2012-11-13 | Load cable automatic tensioning device for crane and installation method thereof |
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| CN102923604B CN102923604B (en) | 2015-07-22 |
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| CN103641013A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Steel wire rope protection device for crane |
| CN108973116A (en) * | 2018-09-04 | 2018-12-11 | 广州捷和电子科技有限公司 | A kind of 3D printer |
| CN113353681A (en) * | 2021-05-13 | 2021-09-07 | 浙江吉利控股集团有限公司 | Steel band winding device |
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|---|---|---|---|---|
| CN103641013A (en) * | 2013-11-25 | 2014-03-19 | 无锡起岸重工机械有限公司 | Steel wire rope protection device for crane |
| CN108973116A (en) * | 2018-09-04 | 2018-12-11 | 广州捷和电子科技有限公司 | A kind of 3D printer |
| CN113353681A (en) * | 2021-05-13 | 2021-09-07 | 浙江吉利控股集团有限公司 | Steel band winding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102923604B (en) | 2015-07-22 |
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