CN201236106Y

CN201236106Y - Lifting hook of hoist crane

Info

Publication number: CN201236106Y
Application number: CNU2008200418402U
Authority: CN
Inventors: 陆颖杰; 陆正岳; 郁正叶
Original assignee: CHANGSHU HAIOU MACHINERY Co Ltd
Current assignee: CHANGSHU HAIOU MACHINERY Co Ltd
Priority date: 2008-07-17
Filing date: 2008-07-17
Publication date: 2009-05-13
Anticipated expiration: 2018-07-17

Abstract

A hanging hook used for a hoist crane belongs to the technical field of hoisting equipment and comprises a hook body, a barrel body and a pin roll. The hanging hook is characterized by also comprising a hook body supporting device, an overloading responder, a hanging rope connection device and a hanging shaft, the barrel body is a circular barrel body which forms a first cavity and a second cavity, and a lug boss which separates the first cavity and the second cavity is separated by a cavity positioned on the inner wall of the barrel body in an extending way. Furthermore, the hook body supporting device is arranged in the second cavity and connected with the barrel body, the hook body is matched and connected with the hook body supporting device, and the lower end of the hanging shaft is positioned in the second cavity and contacted with the hook body supporting device. Besides, the upper end of the hanging shaft is stretched into the first cavity and contacted with the hanging rope connection device, the overloading responder is sleeved on the lower end of the hanging shaft, wherein the lower part of the hanging rope connection device forms a column body, and a warning mark is positioned on the outer wall of the column body. The utility model has the advantages of safe assurance and accident avoidance.

Description

The suspension hook of hoist crane

Technical field

The utility model belongs to technical field of hoisting facility, is specifically related to a kind of suspension hook of hoist crane.

Background technology

The reason known as industry for hoist crane, no matter be manually operated or electrically operated, all must be equipped with the suspension hook that is used to draw weight.Fig. 1 shows the suspension hook of the hoist crane that generally uses in the prior art, and it comprises coupler body 1, cylindrical shell 2 and bearing pin 3, and coupler body 1 usefulness nut is fixed on the bottom of cylindrical shell 2, and bearing pin 3 is arranged at the nearly middle part of cylindrical shell 2.In the time the suspension hook of this structure will being configured on the hoist crane, so, as long as an end of rope such as steel rope is fixing with bearing pin 3, and the middle part of rope is wrapped on the capstan winch of hoist crane, and the other end of rope and capstan winch fixed gets final product.Under running condition, drawn or claimed to hook weight by coupler body 1, start the motor that connects with described capstan winch transmission, capstan winch is rotated, receive rope by capstan winch, make weight up, until making weight guide and support removal weight to the desired position.If will continue to lift by crane another part weight, so, by the motor counter-rotating, made capstan winch put rope before this, drawn weight by coupler body 1 once more, the rest may be inferred.Foregoing description can also be by Chinese patent application publication number CN101007619A by understanding.

Yet, in the use of reality, often there are two kinds of lifting situations, the one, because the operator is not enough to quality (weight) estimation of suspended object, cause hoist crane to cause the extreme accident that should not occur because of overload, gently then damage hoist crane and hanging object, heavy then personal safety is constituted a threat to; The 2nd, the overload handling because of due to operator's subjective reason is embodied in the progress of striving of racing against time, thereby can causes aforesaid adverse consequences equally.

In view of this, no matter be that the production firm of hoist crane or the user of hoist crane wish to have and a kind ofly can in time point out over burdening and use the suspension hook of avoiding the hoist crane that accident takes place.To this, the applicant has passed through long-term exploration, has found the way that solves finally, and technical scheme described below produces under this background.

Summary of the invention

Task of the present utility model is will provide a kind of can point out the suspension hook that whether overloads handling and use safing hoist crane to the operator.

Task of the present utility model is finished like this, a kind of suspension hook of hoist crane, it comprises coupler body, cylindrical shell and bearing pin, characteristics are: also include coupler body and guide and support device, the overload responder, one sling conductor and a hanging axis, described cylindrical shell is for constituting first, the cylinder of second cavity, first, separating boss by the cavity that inwall extended of cylindrical shell between second cavity separates, described coupler body is guided and supported that device is located in second cavity and coupler body is guided and supported device and cylindrical shell connects by described bearing pin, described coupler body connects at coupler body and guides and supports on the device, the lower end of described hanging axis is positioned at second cavity and guides and supports device with coupler body and contacts, and the upper end of hanging axis is insinuated in first cavity, connect with the described sling conductor that is located in first cavity, described overload responder is nested with the lower end at hanging axis, wherein: the bottom of sling conductor constitutes one and is used for the cylindrical body that matches with described first cavity, and the outer wall of this cylindrical body is provided with the warning mark that is used to disclose overload.

In a specific embodiment of the present utility model, the top of described coupler body constitutes one and is used for guiding and supporting the matched connector of device with described coupler body, this connector comprises sets flange, narrow necking down and defining flange, and wherein, narrow necking down is being set between flange and the defining flange; Described coupler body guide and support device by a pair of opposite each other and each other identical the and equal-sized fixture block of shape and structure constitute, offer second pin shaft hole that is used for passing through in the position that corresponds to each other of each fixture block, set flange groove and narrow necking down chamber for described bearing pin, the described flange of setting is embedded in and sets in the flange groove, and described narrow necking down is corresponding with narrow necking down chamber, and touch with the chamber wall subsides in narrow necking down chamber, described defining flange is corresponding with the baseplane of fixture block corresponding to the position in described narrow necking down chamber.

In another specific embodiment of the present utility model, also be provided with one on the described coupler body and be used to prevent the safety device that hanging object breaks off relations, this safety device comprises retaining tongue, little axle screw and torsion spring, little axle screw is located on the described connector, retaining tongue hinge is connected on the little axle screw, and torsion spring is located on the little axle screw, and a torsion spring pin of torsion spring is positioned on the little axle screw, and another torsion spring pin contacts with the retaining tongue, and the retaining tongue is corresponding to the mouth of hook position of coupler body.

In another specific embodiment of the present utility model, the bottom of described hanging axis constitutes the responder seat that the internal diameter of a diameter and described second cavity is complementary substantially, the upper end of hanging axis is provided with the outside thread that is used for described sling conductor spiral marking connection, the bottom of described overload responder and responder seated connection touch, and top contacts with described cavity separation boss.

In another specific embodiment of the present utility model, described overload responder is an elastic element.

Go back in the specific embodiment of the present utility model, described elastic element is coil spring or disk spring.

More of the present utility model and in specific embodiment, described elastic element is one group of disk spring stacked on top of each other.

In of the present utility model and then specific embodiment, offer at least one handle hole on the described responder seat.

Of the present utility model again more and in specific embodiment, described warning mark with cyclic form be arranged on the described cylindrical body, and the color of warning mark is red.

In again of the present utility model and then specific embodiment, described warning mark is with vertical form and spaced apart being arranged on the described cylindrical body, and the color of warning mark is red.

The advantage of the technical scheme that the utility model is recommended is: owing to be provided with the overload responder in second cavity of cylindrical shell, when the overweight lifting of hoist crane, overload responder generation deformation, expose first cavity by the warning mark on the cylindrical body of sling conductor, for the operator provides overweight signal, therefore can ensure safety, avoid accident.

Description of drawings

Figure 1 shows that the scheme drawing of the suspension hook of the hoist crane in the prior art.

Fig. 2 is a specific embodiment constructional drawing of the suspension hook of hoist crane of the present utility model.

Fig. 3 is the cutaway view of Fig. 2.

Fig. 4 is the application examples scheme drawing of suspension hook of the hoist crane of structure shown in Figure 2.

The specific embodiment

For your inspector of making Patent Office particularly the public can be well understood to essence of the present utility model and beneficial effect more; the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present utility model is described in detail as follows; but all descriptions to embodiment all do not constitute the restriction to the technical solution of the utility model, and are any pro forma but not substantial equivalence is replaced or notion changes and all should be considered as technical scheme scope disclosed in the utility model and the prescription protection.

See also Fig. 2 and Fig. 3, the top of given coupler body 1 extend one be used for coupler body 1 with below the coupler body that also will describe in detail guide and support the matched connector 11 of device 4, whole connector 11 preferred forging mode and the coupler bodies 1 of adopting are fixed, also can adopt the mode and the coupler body 1 of welding fixing, present embodiment selects the forging mode to make connector 11 and coupler body 1 constitute one.Connector 11 comprises sets flange 111, narrow necking down 112 and defining flange 113, and wherein narrow necking down 112 is between setting between flange 111 and the defining flange 113.In addition, on coupler body 1, also dispose a safety device 12 that is constituted by retaining tongue 121, little axle screw 122 and torsion spring 123, little axle screw 122 is located at the base portion of connector 11, retaining tongue 121 is hinged on the little axle screw 122, torsion spring 123 is located on the little axle screw 122, and one of them torsion spring pin of torsion spring 123 is kept out at the back side that keeps off tongue 121.Whole retaining tongue 121 correspondences can be deviate from from the mouth of hook with the object of avoiding being hung the mouth of hook block of coupler body 1 at the opening of coupler body 1.

Columnar is that the cylindrical shell 2 of hollow constitutes the top that first,

second cavity

21,22, the first cavitys 21 are positioned at second cavity 22, separates boss 23 by the cavity that is arranged on cylindrical shell 2 inwalls between first,

second cavity

21,22 and separates.

The concrete structure that coupler body is guided and supported device 4 is not subjected to restriction shown in Figure 2, and it can have various variations, guides and supports the structure of device 4 because Fig. 2 only is an a kind of preferred coupler body that the applicant exemplified, and following description is then at this structure.Constitute coupler body by both shapes, structure and the identical a pair of fixture block 41 of size and guide and support device 4, offer second pin shaft hole 411 respectively, set flange groove 412 and narrow necking down chamber 413 in the position that the position in opposite directions or the title of a pair of fixture block 41 faces each other, wherein, setting flange groove 412 occupy between second pin shaft hole 411 and the narrow necking down chamber 413.The flange 111 of setting of connector 11 already mentioned above is accommodated in and sets in the flange groove 412, and narrow necking down 112 is corresponding in the narrow necking down chamber 413, touch with the chamber wall subsides in narrow necking down chamber 413, the defining flange 113 of connector 11 is corresponding with the baseplane 414 of fixture block 41 in the bottom corresponding to narrow necking down chamber 413, and leave the gap that is about 0.4～0.6mm between the baseplane 414, be preferably the gap of 0.5mm, after being subjected to load, can do 360 ° of revolutions to guarantee coupler body 1.According to general knowledge, in order to embody desirable assembling effect, the diameter of a pair of fixture block 41 after amalgamation should adapt with the internal diameter of second cavity 22.Corresponding both sides in the portion on the lower side of cylindrical shell 2 respectively offer one first pin shaft hole 24, pass first pin shaft hole 24 and aforesaid second pin shaft hole 411 by bearing pin 3, be placed in second cavity 22 thereby whole coupler body is guided and supported device 4, and guide and support device 4 by coupler body coupler body 1 is guided and supported.In order to prevent that bearing pin 3 from scurrying out from first, second pin shaft hole 24,411, therefore offer a backing pin hole 31 at the end position of bearing pin 3, inserting backing pins in the backing pin hole 31 is that people are accustomed to alleged spring cotter.

Please continue to see Fig. 2 and Fig. 3, constitute the responder seat 71 that a diameter similarly matches with the internal diameter of second cavity 22 in the bottom of the lower end of the hanging axis 7 that provides, the upper end of hanging axis 7 is processed with and is used for the outside thread 72 matched with sling conductor 6, and also offer a cotter-pin hold 73 on the top of outside thread 72, insert for spring cotter, in addition, on responder seat 71, also offer a pair of handle hole 711.Overload responder 5 is nested with the lower end at hanging axis 7, adopt one group of disk spring stacked on top of each other as overload responder 5 in the present embodiment, nethermost disk spring in one group of disk spring contacts with aforesaid responder seat 71, and a uppermost disk spring both can directly have been separated the lower plane of boss 23 or claimed that the lower edge contacted with cavity, made one group of disk spring be limited in cavity and separated between boss 23 and the responder seat 71; A uppermost disk spring can also contact with the lower plane of cavity separation boss 23 indirectly, here alleged indirect notion is meant by means of one piece of catch 51, specifically is catch 51 is stacked on uppermost one piece of disk spring in one group of disk spring.If one group of disk spring is replaced with a coil spring, should be considered as so and the disk spring equivalence.The power that makes one group of disk spring produce deformation is that the maximum weight that can lift by crane with hoist crane adapts, that is to say, when the lifted weight thing does not surpass nominal (standard) weight of regulation, disk spring as overload responder 5 can not produce and makes warning mark 611 expose the distortion of first cylindrical shell 21 so, otherwise, bigger elastic deformation can appear in disk spring, and the elastic deformation force acts on hanging axis 7, and then makes sling conductor 6 come-ups by hanging axis 7.

The central authorities of the cylindrical body 61 of sling conductor 6 offer screw 612, and the pitch thread 72 and the screw 612 of hanging axis 7 upper ends revolve joins, and is revolving timing, can insert handle hole 711 with instrument and implement assembling.Corresponding both sides extension along cylindrical body 61 constitutes a pair of reel for rope seat 62, and being provided on the reel for rope seat 62 is the lifting rope axle 63 of solid hoist crane, and locatees with nut 631.Especially shown in Figure 3 by Fig. 2 and Fig. 3, cylindrical body 61 is located in first cavity 21, the outer wall of cylindrical body 61 with around state be provided with twice warning mark 611.If warning mark 611 vertically and in mode at interval to be arranged on the outer wall of cylindrical body 61, should be considered as with ring-type equivalent being set so.Color for warning mark 611 preferably adopts redness, but is not definitely to be limited to redness, for example can also use yellow or other eye-catching color.

Please specifically see Fig. 3, when structure shown in Figure 2 during at promptly not overweight lifting object normally, the warning mark 611 on the annular solid 61 is positioned at first cavity 21.

Ask for an interview Fig. 4, when structure shown in Figure 2 during at overweight lifting object, one group of disk spring as overload responder 5 produces bigger deformation, make hanging axis 7 up, it is up to drive sling conductors 6 by hanging axis 7, and cylindrical body 61 emersions, first cavity 21 of sling conductor 6 and show warning mark 611 is so that watch and take measures for the operator, promptly reduce the handling weight of weight, use and guarantee safety.The principle of work of hoist crane belongs to known technology, for example can consult CN101007619A, so the applicant is given unnecessary details no longer.

Claims

1, a kind of suspension hook of hoist crane, it comprises coupler body (1), cylindrical shell (2) and bearing pin (3), it is characterized in that: also include coupler body and guide and support device (4), overload responder (5), one sling conductor (6) and a hanging axis (7), described cylindrical shell (2) is for constituting first, second cavity (21,22) cylinder, first, second cavity (21,22) separating boss (23) by the cavity that inwall extended of cylindrical shell (2) between separates, described coupler body guides and supports that device (4) is located in second cavity (22) and by described bearing pin (3) coupler body is guided and supported device (4) connects with cylindrical shell (2), described coupler body (1) connects at coupler body and guides and supports on the device (4), the lower end of described hanging axis (7) is positioned at second cavity (22) and guides and supports device (4) with coupler body and contacts, and the upper end of hanging axis (7) is insinuated in first cavity (21), connect with the described sling conductor (6) that is located in first cavity (21), described overload responder (5) is nested with the lower end in hanging axis (7), wherein: the bottom of sling conductor (6) constitutes one and is used for the cylindrical body (61) that matches with described first cavity (21), and the outer wall of this cylindrical body (61) is provided with the warning mark (611) that is used to disclose overload.

2, the suspension hook of hoist crane according to claim 1, the top that it is characterized in that described coupler body (1) constitutes one and is used for guiding and supporting the matched connector (11) of device (4) with described coupler body, this connector (11) comprises sets flange (111), narrow necking down (112) and defining flange (113), wherein, narrow necking down (112) is positioned at and sets between flange (111) and the defining flange (113); Described coupler body guide and support device (4) by a pair of opposite each other and each other identical the and equal-sized fixture block of shape and structure (41) constitute, offer in the position that corresponds to each other of each fixture block (41) and to be used for second pin shaft hole (411) that passes through for described bearing pin (3), set flange groove (412) and narrow necking down chamber (413), the described flange (111) of setting is embedded in and sets in the flange groove (412), and described narrow necking down (112) is corresponding with narrow necking down chamber (413), and touch with the chamber wall subsides in narrow necking down chamber (413), described defining flange (113) is corresponding with the baseplane (414) of fixture block (41) at the position corresponding to described narrow necking down chamber (413).

3, the suspension hook of hoist crane according to claim 2, it is characterized in that also being provided with on the described coupler body (1) one and be used to the safety device (12) that prevents that hanging object from breaking off relations, this safety device (12) comprises retaining tongue (121), little axle screw (122) and torsion spring (123), little axle screw (122) is located on the described connector (11), retaining tongue (121) hinge is connected on the little axle screw (122), torsion spring (123) is located on the little axle screw (122), a torsion spring pin of torsion spring (123) is positioned on the little axle screw (122), and another torsion spring pin contacts with retaining tongue (121), and retaining tongue (121) is corresponding to the mouth of hook position of coupler body (1).

4, the suspension hook of hoist crane according to claim 1, the bottom that it is characterized in that described hanging axis (7) constitutes the responder seat (71) that the internal diameter of a diameter and described second cavity (22) is complementary substantially, the upper end of hanging axis (7) is provided with the outside thread (72) that is used for described sling conductor (6) spiral marking connection, the bottom of described overload responder (5) contacts with responder seat (71), and top contacts with described cavity separation boss (23).

5,, it is characterized in that described overload responder (5) is an elastic element according to the suspension hook of claim 1 or 4 described hoist cranes.

6, the suspension hook of hoist crane according to claim 5 is characterized in that described elastic element is coil spring or disk spring.

7, the suspension hook of hoist crane according to claim 6 is characterized in that described elastic element is one group of disk spring stacked on top of each other.

8, the suspension hook of hoist crane according to claim 4 is characterized in that offering on the described responder seat (71) at least one handle hole (711).

9, the suspension hook of hoist crane according to claim 1, it is characterized in that described warning mark (611) with cyclic form be arranged on the described cylindrical body (61), and the color of warning mark (611) is red.

10, the suspension hook of hoist crane according to claim 1 it is characterized in that described warning mark (611) with vertical form and spaced apart being arranged on the described cylindrical body (61), and the color of warning mark (611) is red.