CN202609834U - Crane fly jib and box jib collecting and pulling guide device and crane - Google Patents
Crane fly jib and box jib collecting and pulling guide device and crane Download PDFInfo
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- CN202609834U CN202609834U CN 201220167745 CN201220167745U CN202609834U CN 202609834 U CN202609834 U CN 202609834U CN 201220167745 CN201220167745 CN 201220167745 CN 201220167745 U CN201220167745 U CN 201220167745U CN 202609834 U CN202609834 U CN 202609834U
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Abstract
The utility model provides a crane fly jib and box jib collecting and pulling guide device which comprises a box jib guide part and a rolling mechanism, wherein the box jib guide part is used for matching with a box jib (2) in a guiding manner, and the rolling mechanism is used for supporting the box jib (2). The box jib guide part and the rolling mechanism are mounted in a truss jib (1) of a crane fly jib, and the rolling mechanism comprises a rolling bearing (13) for bearing the pressure of the box jib (2) and rolls when the box jib (2) moves. In addition, the utility model further provides a crane comprising the collecting and pulling guide device. The box jib is supported by the rolling mechanism, the rolling mechanism and the box jib guide part can function in guiding collecting and pulling of the box jib, a rolling wheel bearing is the rolling bearing, a rolling wheel rolls more flexibly and smoothly and is lower in friction when the box jib is pulled out or collected back, so that labor, material resources, time and the like are saved, and abrasion of the lower portion of the box jib and the rolling wheel is decreased.
Description
Technical field
The utility model relates to the crane subsidiary arm operating mechanism, particularly, relates to a kind of crane subsidiary arm box-shaped arm and reels guiding device.In addition, the utility model also relates to and a kind ofly comprises that said crane subsidiary arm box-shaped arm reels the hoisting crane of guiding device.
Background technology
Hoisting crane; For example runabout crane (car hosit, wheel-mounted crane etc.) also extensively adopts crane subsidiary arm (being designated hereinafter simply as " auxiliary ") to enlarge scope of work, to increase lifting altitude except having hoisting crane principal arm (being designated hereinafter simply as " principal arm ").Generally speaking, when the big and lifting altitude of lifted load is low, adopt the principal arm operation.When the less and lifting altitude of lifted load is higher, the arm head of principal arm is connected with the afterbody of auxiliary increasing lifting altitude, and in the time need not using auxiliary, then with the side of auxiliary folding and unfolding to principal arm.Particularly, in the prior art, when needs use auxiliary, generally auxiliary is turned to the principal arm head from the side of principal arm, connect through latch then through mode such as manual.
According to application need, crane subsidiary arm can comprise truss arm (being formed by connecting through link span at least one joint " jib " usually) and box-shaped arm.The box-shaped arm generally is arranged in the inside of truss arm; When needs use this box-shaped arm; The arm head direction of said box-shaped arm towards said truss arm spurred so that thereby stretch out the arm head end of said box-shaped arm truss arm; Stretch out at the box-shaped arm and this box-shaped arm to be fixed with respect to the truss arm after putting in place, thereby make crane subsidiary arm have the length of lengthening.When not using said box-shaped arm, the box-shaped arm is recovered in the said truss arm deposits.Known ground; The truss arm mainly is the framework as auxiliary boom that is welded by steel pipe, angle steel etc.; And the box-shaped arm mainly is welded by sheet material, pulls out the process of withdrawal in said truss arm at said box-shaped arm, in order to make the motion of box-shaped arm in the process of reeling smooth and easy light; Especially cause box-shaped arm or truss arm to damage in order to prevent the collision of box-shaped arm and truss arm, general box-shaped arm need be through reeling the inside of supported at said truss arm.
Referring to illustrated in figures 1 and 2; The crane subsidiary arm box-shaped arm of prior art reels guiding device and comprises the carriage 15 that is fixed on the truss arm 1; Be fixed with bearing pin on this carriage 15; Through plain bearing 16 roller 3 is installed on this bearing pin, box-shaped arm 2 in the inner support of said truss arm on this roller 3.In addition, the guide plate 9 (promptly guiding bent plate) that is arranged symmetrically in carriage 15 both sides is installed also on the truss arm, said box-shaped arm 2 is supported on the said roller 3 and between the guide plate 9 of these both sides.Through said structure, the said roller 3 that reels guiding device bears the pressure of box-shaped arm 2, when box-shaped arm 2 is reeling when moving in the process; Because the rolling of roller 3; Can relatively effortlessly box-shaped arm 2 be pulled out or withdraw, and because the position-limiting action of guide plate 9 keeps box-shaped arm non-migration when pulling out or regain; Box-shaped arm 2 can not collide truss arm 1 in reeling motion process, therefore can not cause the damage of box-shaped arm 2 or truss arm 1.This reel guiding device can be provided with along the length direction of said truss arm one or more, to realize guiding function effectively to box-shaped arm 2.
But the crane subsidiary arm box-shaped arm of above-mentioned prior art reels guiding device and still has following shortcoming: the first, and the difficulty effort is still compared in the reel operation of box-shaped arm 2 in motion process; Particularly; The said roller 3 that reels guiding device adopts plain bearing 16 to install, and known ground plain bearing is the face contact in rotation process, and the weight of box-shaped arm 2 is bigger; This causes plain bearing friction force in the course of the work bigger; Therefore the box-shaped arm is relatively required great effort time-consumingly when pulling out or regain, and box-shaped arm 2 can not successfully pulled out or regain to operating personal often, usually need be by accessory equipments such as fork trucks.Simultaneously, this structure of roller being installed through plain bearing also makes saidly to reel the guiding device easy abrasion and cause damage, causes the said functional reliability that reels guiding device relatively poor.Second; Carriage 15 is fixed with respect to the installation site of truss arm 1, and it can not regulate roller 3 height, also just can not regulate the position of box-shaped arm 2; Therefore there is certain use limitation; For example when the head of truss arm 1 because stressed big and local deformation takes place, need raise box-shaped arm 2 this moment relatively can stretch out to guarantee box-shaped arm 2 smoothly, still this prior art reels the position adjustments that guiding device can not be realized box-shaped arm 2.
In view of this, need a kind of later-model crane subsidiary arm box-shaped arm of design to reel guiding device, to overcome or to alleviate the above-mentioned defective of prior art.
The utility model content
The utility model technical matters to be solved provides a kind of crane subsidiary arm box-shaped arm and reels guiding device, and this reels guiding device can make the box-shaped arm smooth and easy more fast, convenient and strength-saving in reeling operating process.
Further; The utility model technical matters to be solved provides a kind of crane subsidiary arm box-shaped arm and reels guiding device; This reels guiding device not only can make the box-shaped arm smooth and easy more fast, convenient and strength-saving in reeling operating process, and can realize the position adjustments of box-shaped arm as required.
In addition, the technical matters that the utility model also will solve provides a kind of hoisting crane, and the crane subsidiary arm box-shaped arm guiding device of this hoisting crane can make the box-shaped arm more fast smooth and easy, convenient and strength-saving in reeling operating process.
In order to solve the problems of the technologies described above; The utility model provides a kind of crane subsidiary arm box-shaped arm to reel guiding device; Said crane subsidiary arm comprises truss arm and the box-shaped arm that is installed in this truss arm; Wherein, The said guiding device that reels comprises and is used for forming the guiding matching relationship to prevent this box-shaped arm at motion process box-shaped arm guide of being partial to and the rolling mechanism that is used to support this box-shaped arm with said box-shaped arm that said box-shaped arm guide and rolling mechanism are installed in the said truss arm, and said rolling mechanism comprises the antifriction-bearing box that is used for bearing the pressure of said box-shaped arm and forms rolling at this box-shaped arm motion process.
Preferably; Said box-shaped arm guide is relative guide plate; Can arrange between this relative guide plate that said box-shaped arm is to form said guiding matching relationship; Said relative guide plate is arranged in the both sides, inside of this truss arm along the Width of said truss arm, and is respectively fixed on the said truss arm, and each said guide plate is the plate with predetermined bending angle; And the bottom part of the said guide plate of both sides is respectively fixed on the said truss arm, and the top part forms herringbone jointly.
Selectively, the side of each said guide plate is provided with the liner plate that is fixed in said truss arm.
Particularly, said rolling mechanism comprises that said antifriction-bearing box is installed on this bearing pin with respect to the bearing pin of said truss arm stationkeeping.
Particularly, the two ends of said antifriction-bearing box are respectively equipped with back-up ring.
Preferably, said rolling mechanism also comprises the carriage that is fixed on the said truss arm, and said bearing pin is installed on this carriage.
Particularly, said carriage comprises the first relative carrier frame plate and is fixed in second carrier frame plate on this first carrier frame plate, and said bearing pin is installed on the said first relative carrier frame plate, and said second carrier frame plate is fixed on the said truss arm.
Preferably, be formed with the slotted eye that is used to regulate the height installation site of this second carrier frame plate on said truss arm on said second carrier frame plate, this second carrier frame plate is detachably fixed on the said truss arm through this slotted eye and bolt.
Preferably, on the said antifriction-bearing box roller that is used to support said box-shaped arm is installed.
In addition; The utility model also provides a kind of hoisting crane; This hoisting crane comprises hoisting crane principal arm and crane subsidiary arm, and said crane subsidiary arm comprises truss arm and box-shaped arm, and said box-shaped arm is installed in the said truss arm through reeling guiding device; Wherein, the said guiding device that reels is for to reel guiding device according to each described crane subsidiary arm box-shaped arm of technique scheme.
Through technique scheme, the crane subsidiary arm box-shaped arm of the utility model reels guiding device and adopts rolling mechanism supporting box-shaped arm, and through rolling mechanism and box-shaped arm guide the box-shaped arm is drawn and to pack up guiding function; Roller bearing adopts antifriction-bearing box, and when pulling out or regaining the box-shaped arm, roller rolls more flexible; Smooth and easy; Friction force is littler, thereby saves human and material resources, time etc., has also reduced the wearing and tearing of box-shaped arm bottom and roller.Under optimal way, carriage can be regulated height simultaneously, thereby regulates the position of box-shaped arm, makes when the box-shaped arm is pulled out or regained more flexible.The hoisting crane of the utility model comprises that said crane subsidiary arm box-shaped arm reels guiding device, so it has above-mentioned advantage equally.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Attached drawings is used to provide the further understanding to the utility model; And constitute the part of specification sheets; It is used to explain the utility model with the following specific embodiment, but the protection domain of the utility model is not limited to the following accompanying drawing and the specific embodiment.In the accompanying drawings:
Fig. 1 is the structural representation that the crane subsidiary arm box-shaped arm of prior art reels guiding device, has wherein only shown the local part of truss arm and box-shaped arm.
Fig. 2 is that crane subsidiary arm box-shaped arm shown in Figure 1 reels guiding device along A-A line side cross sectional view.
Fig. 3 is the structural representation that the crane subsidiary arm box-shaped arm of the utility model specific embodiment reels guiding device, has wherein only shown the local part of truss arm and box-shaped arm.
Fig. 4 is that crane subsidiary arm box-shaped arm shown in Figure 3 reels guiding device along B-B line side cross sectional view.
Description of reference numerals:
1 truss arm; 2 box-shaped arms;
3 rollers; 4 first carrier frame plates;
5 brace panels; 6 bolts;
7 packing rings; 8 bearing pins;
9 guide plates; 10 liner plates;
11 second carrier frame plates; 12 bolts;
13 antifriction-bearing boxs; 14 back-up rings;
15 carriages; 16 plain bearings.
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model; Should be understood that; The specific embodiment described herein only is used for explanation and explains the utility model, and the protection domain of the utility model is not limited to the following specific embodiment.
Fig. 3 shows that the crane subsidiary arm box-shaped arm of the utility model specific embodiment reels the structural representation of guiding device, has wherein only shown the local part of truss arm 1 and box-shaped arm 2.Fig. 4 is that crane subsidiary arm box-shaped arm shown in Figure 3 reels guiding device along B-B line side cross sectional view.
Referring to Fig. 3 and shown in Figure 4; The crane subsidiary arm box-shaped arm of the utility model basic embodiment reels guiding device (hereinafter to be referred as " reeling guiding device ") and comprises and be used for preventing that box-shaped arm 2 is at motion process box-shaped arm guide of being partial to and the rolling mechanism that is used to support this box-shaped arm 2; Said box-shaped arm guide and rolling mechanism are installed in the truss arm 1 of crane subsidiary arm; Wherein, said rolling mechanism comprises the pressure that is used for bearing said box-shaped arm 2 and forms the antifriction-bearing box 13 that rolls at these box-shaped arm 2 motion processes.
In order to help to it will be apparent to those skilled in the art that the utility model reels the technical conceive of guiding device, below describe the utility model with reference to Fig. 3 and Fig. 4 and reel the more detailed concrete structure of guiding device.Need to prove that at this in the scope of the above-mentioned specific embodiment, the concrete structure that reels guiding device of the utility model is not limited to Fig. 3 and details shown in Figure 4, simple variant structure that to those skilled in the art can be in a variety of forms.Therefore, will be on the basis of describing Fig. 3 and concrete structure shown in Figure 4 in following specific descriptions, some simple variant modes of additional disclosure.
As shown in Figure 4, particularly, said box-shaped arm guide is the guide plate 9 that is arranged in these truss arm 1 inner both sides along the Width of said truss arm 1, and the guide plate 9 of these both sides is respectively fixed on the said truss arm 1.Each said guide plate 9 can be for having the plate of predetermined bending angle, and the bottom part of the said guide plate of both sides is respectively fixed on the said truss arm 1, and the top part forms herringbone jointly.Under installing condition, box-shaped arm 2 is between the guide plate 9 of both sides, thereby box-shaped arm 2 receives the constraint of guide plate 9 in motion process, can not take place to surpass the deflection of tolerance level and causes box-shaped arm 2 with 1 collision of truss arm and damage.Guide plate 9 preferably forms the plate with predetermined bending angle; Mainly be to make the loose relatively and motion of more convenient box-shaped arm 2 of the position-limiting action of 9 pairs of box-shaped arms 2 of guide plate; In fact box-shaped arm 2 exists in reeling motion process and certain rocks that to tilt be normal, as long as it is no more than the limit of permission.In addition, in order to increase the intensity of guide plate 9, the side of each said guide plate 9 is provided with the liner plate 10 that is fixed in truss arm 1, thereby makes guide plate 9 when receiving box-shaped arm 2 bumps, have better tolerance intensity.
Although said box-shaped arm guide adopts the form of guide plate 9 to have advantages such as simple in structure, that guiding is reliable; But to those skilled in the art; Said box-shaped arm guide obviously is not limited to the version of above-mentioned guide plate 9, it may occur to persons skilled in the art that multiple simple variant structure replaces above-mentioned guide plate 9.For example, said box-shaped arm guide can be the orienting lug that is respectively fixed on the truss arm 1 inner two sides; For another example, said box-shaped guide can be guide rail guide groove fit structure, specifically can be in the side of box-shaped arm 2 upper mounting rail and guide groove one, and another person of the side of truss arm 1 upper mounting rail and guide groove.Therefore, in the technical conceive scope of the utility model, said box-shaped arm guide can adopt multiple specific constructive form, as long as it can play directional tagging in box-shaped arm 2 motion processes, it all should work as the protection domain that belongs to the utility model.
Referring to Fig. 3 and shown in Figure 4, said rolling mechanism is mainly used in and in truss arm 1, box-shaped arm 2 is formed support and in box-shaped arm 2 motion processes, form rolling, with more laborsaving when driving 2 motions of box-shaped arm.Said rolling mechanism comprises the bearing pin 8 with respect to truss arm 1 stationkeeping, and said antifriction-bearing box 13 is installed on this bearing pin 8.Further, identical with the normal use structure of antifriction-bearing box 13, the two ends of said antifriction-bearing box 3 are respectively equipped with back-up ring 14, and the effect of back-up ring 14 mainly is that the inside and outside circle that prevents antifriction-bearing box 13 breaks away from when bearing load each other.It should be noted that bearing pin described herein 8 with respect to truss arm 1 stationkeeping at this, be meant that mainly bearing pin 8 is a unmodified with respect to three bit space positions of truss arm, but bearing pin 8 can have multiple concrete mounting structure form.
The concrete installation form of bearing pin 8 can be diversified, and for example the two ends of bearing pin 8 can directly be fixed on the two sides, inside of truss arm 1.Certainly, Fig. 3 and bearing pin 8 shown in Figure 4 adopt more preferred mounting structure, and particularly, said rolling mechanism also comprises the carriage 15 that is fixed on the truss arm 1, and said bearing pin 8 is installed on this carriage 15.Carriage 15 can comprise the first relative carrier frame plate 4 and be fixed to second carrier frame plate 11 on this first carrier frame plate 4, and said bearing pin 8 is installed on the said first relative carrier frame plate 4, and said second carrier frame plate 11 is fixed on the said truss arm 1.More preferably; Be formed with the slotted eye (for example oval hole, slotted hole, rectangular slotted eye etc.) that is used to regulate the height installation site of this second carrier frame plate 11 on said truss arm 1 on said second carrier frame plate 11, this second carrier frame plate 11 is detachably fixed on the said truss arm 1 through this slotted eye and bolt 12.Second carrier frame plate 11 is provided with the slotted eye with predetermined length and makes that whole rolling mechanism can be along the short transverse adjusting position of truss arm 1, thereby can regulate the height and position of box-shaped arm 2 in truss arm 1 easily, thereby satisfies different application needs.In addition; Said bearing pin 8 one ends are fixed with brace panel 5 (for example through welding); Thereby constitute latch, the other end of this bearing pin insert and the pin-and-hole of free-running fit to relative said first carrier frame plate 4 in, and said brace panel is fixed on the side of one of them said first carrier frame plate 4., as shown in Figure 4, brace panel 5 can be installed on first carrier frame plate 4 of a side through bolt 6 and packing ring 7, and brace panel 5 also can play position-limiting action to bearing pin 8 simultaneously.Certainly; As other selectable simple variant mode; Bearing pin 8 might not form fixed installation through brace panel 5 as stated, and it also can rotatably be installed on the first relative carrier frame plate 4, under this situation, corresponding position limiting structure need be set in case shotpin axle 8 breaks away from from the first relative holder splice 4; Under bearing pin 8 rotatably mounted situations, antifriction-bearing box 13 is installed in the rolling effect that does not influence box-shaped arm 2 antifriction-bearing box 8 in motion process on this bearing pin 8.Therefore, these simple variant forms all belong to the protection domain of the utility model.
As stated, antifriction-bearing box 13 bears the pressure of box-shaped arm 1, and as a kind of selectable form of implementation, in fact the outer ring of antifriction-bearing box 13 can be used for directly supporting box-shaped arm 1, and this does not influence the rolling effect of antifriction-bearing box 13 in box-shaped arm 2 motion processes.But,, preferably, the roller 3 that is used to support said box-shaped arm 2 is installed on the said antifriction-bearing box 13 in order to form bigger area of contact so that rolling effect is better at box-shaped arm 2 and rolling mechanism.
Above with reference to Fig. 3 and Fig. 4 according to go forward one by one hierarchy description the utility model reel preferred implementation and some selectable simple variant modes of guiding device.In order to help those skilled in the art to understand the technical conceive of the utility model on the whole; The following preferred implementation of describing the utility model with reference to Fig. 3 and Fig. 4 on the whole; But the protection domain that it should be noted that the utility model is not limited to the detail of Fig. 3 and optimal way shown in Figure 4
Referring to Fig. 3 and shown in Figure 4; The crane subsidiary arm box-shaped arm of this preferred implementation reels guiding device; It mainly comprises box-shaped arm guide and the rolling mechanism that is installed in the truss arm, and wherein, box-shaped arm guide is the guide plate 9 that is oppositely arranged; Rolling mechanism is mainly assembled by roller 3, first carrier frame plate 4, positioning plate 5, bolt 6, packing ring 7, bearing pin 8, liner plate 10, second carrier frame plate 11, bolt 12, antifriction-bearing box 13, back-up ring 14; Wherein, roller 3, back-up ring 14, antifriction-bearing box 13 constitute roller body, are loaded on the first relative carrier frame plate 4 through bearing pin 8, brace panel 5, bolt 6, packing ring 7.Bearing pin 8 is one composition latch with brace panel 5 welderings.First carrier frame plate 4 and second carrier frame plate, 11 solder togethers constitute carriage 15.Carriage 15 is loaded on the truss arm 1 through bolt 12.Box-shaped arm 2 is supported on the roller 3 and through guide plate 9 constrained motion directions, box-shaped arm 2 truss arm 1 in, support orientate as and with truss arm 1 keeping parallelism state.Liner plate 10 is loaded on the side of guide plate 9 to play booster action.Reel guiding device through this of the utility model, box-shaped arm 2 draws to be received fast, convenient, time saving and energy saving.The guide plate 9 that it is provided with roller 3 and is used to lead in box-shaped arm 2 bottoms draws the box-shaped arm simultaneously at the pressure that bears the box-shaped arm and to pack up guiding function, keeps box-shaped arm 2 non-migration when pulling out or regain.Roller 3 is loaded on the carriage 15 that is fixed on the truss arm 1 through bearing pin 8.The backup bearing of roller 3 adopts antifriction-bearing box 13, and when pulling out or regaining the box-shaped arm, roller rolls more flexible, smooth and easy, and friction force is littler, thereby saves human and material resources, time etc., has also reduced the wearing and tearing of box-shaped arm bottom and roller.Carriage 15 can be regulated height, thereby regulates the position of box-shaped arm, makes the box-shaped arm draw receipts more smooth and easy, flexible.
Reel at the utility model on the basis of technical scheme of guiding device; The utility model further provides a kind of crane subsidiary arm; This crane subsidiary arm comprises truss arm 1 and box-shaped arm 2, and wherein, this crane subsidiary arm comprises that also the described crane subsidiary arm box-shaped of technique scheme arm reels guiding device; Said box-shaped arm 2 is supported on the said rolling mechanism, and forms the guiding matching relationship with said box-shaped arm guide.This guiding matching relationship is apparently to those skilled in the art, for example under the situation of above-mentioned guide plate 9, box-shaped arm 2 between relative guide plate 9, thereby form directional tagging with the constraint of receiving guide plate 9.Under the variations of guide rail guide groove fit structure etc., make guide rail guide groove etc. cooperatively interact and get final product.
Further preferably, said box-shaped arm 2 reels guiding device through said crane subsidiary arm box-shaped arm and is installed as parallel with said truss arm 1.
In addition, the utility model also provides a kind of hoisting crane, and this hoisting crane comprises the described crane subsidiary arm of technique scheme.
Below the simple crane subsidiary arm box-shaped arm of describing the utility model reel the operating process of guiding device.When hoisting crane need not use auxiliary, box-shaped arm 2 closed in the truss arm 1, and crane subsidiary arm is folded to the principal arm next door.When using auxiliary, earlier truss arm 1 is launched, box-shaped arm 2 is pulled out as required, regains when not using.Box-shaped arm 2 pull out or the withdrawal process in, roller 3 plays certain guiding function with guide plate plate 9, keeps box-shaped arm 2 drawing the time receiving non-migration.Because roller bearing adopts antifriction-bearing box 13, therefore can fast and effeciently pull out or regain box-shaped arm 2, friction force reduces, and makes when the box-shaped arm is pulled out or regained more nimbly and freely, and is smooth and easy more fast, more time saving and energy saving.Through adopting the setting height(from bottom) that slotted eye (for example oval hole) can bracket, thereby regulate the height of roller 3, adapt to the position of box-shaped arm, make when the box-shaped arm is pulled out or is regained more smooth and easy flexibly.
Visible by last description; The main technical points that the crane subsidiary arm box-shaped arm of the utility model reels guiding device is: 1, this crane subsidiary arm box-shaped arm reels guiding device; Roller 3 and guide plate 9 are set in the auxiliary box-shaped arm bottom of hoisting crane; Be used to bear box-shaped arm pressure, the box-shaped arm drawn pack up guiding function, keep box-shaped arm non-migration when pulling out or regain.2, roller 3 is loaded on the carriage 15 on the truss arm 1 through bearing pin 8.Roller bearing adopts antifriction-bearing box 13, and when pulling out or regaining the box-shaped arm, roller rolls more flexible, smooth and easy, and friction force is littler, thereby saves human and material resources, time etc., has also reduced the wearing and tearing of box-shaped arm and roller.3, carriage 15 can be regulated the height of roller through slotted eye, thereby regulates box-shaped arm position, makes when the box-shaped arm is pulled out or regained more flexible.
Can be found out that by last description the utility model advantage is: the device of the utility model adopts rolling mechanism supporting box-shaped arm 2, and through rolling mechanism and box-shaped arm guide box-shaped arm 2 is drawn and to pack up guiding function; Roller bearing adopts antifriction-bearing box, and when pulling out or regaining the box-shaped arm, roller rolls more flexible; Smooth and easy; Friction force is littler, thereby saves human and material resources, time etc., has also reduced the wearing and tearing of box-shaped arm bottom and roller.Under optimal way, carriage 15 can be regulated height simultaneously, thereby regulates the position of box-shaped arm, makes when the box-shaped arm is pulled out or regained more flexible.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (10)
1. crane subsidiary arm box-shaped arm reels guiding device; Said crane subsidiary arm comprises truss arm (1) and is installed in the box-shaped arm (2) in this truss arm (1); It is characterized in that; The said guiding device that reels comprises and is used for forming the guiding matching relationship to prevent that this box-shaped arm (2) is at motion process box-shaped arm guide of being partial to and the rolling mechanism that is used to support this box-shaped arm (2) with said box-shaped arm (2); Said box-shaped arm guide and rolling mechanism are installed in the said truss arm (1), and said rolling mechanism comprises the pressure that is used for bearing said box-shaped arm (2) and forms the antifriction-bearing box (13) that rolls at this box-shaped arm (2) motion process.
2. crane subsidiary arm box-shaped arm according to claim 1 reels guiding device; It is characterized in that; Said box-shaped arm guide is relative guide plate (9); Can arrange between this relative guide plate (9) that said box-shaped arm (2) is to form said guiding matching relationship; Said relative guide plate (9) is arranged in the both sides, inside of this truss arm (1) along the Width of said truss arm (1), and is respectively fixed on the said truss arm (1), and each said guide plate (9) is for having the plate of predetermined bending angle; And the bottom part of the said guide plate of both sides is respectively fixed on the said truss arm (1), and the top part forms herringbone jointly.
3. crane subsidiary arm box-shaped arm according to claim 2 reels guiding device, it is characterized in that, the side of each said guide plate (9) is provided with the liner plate (10) that is fixed in said truss arm (1).
4. reel guiding device according to each described crane subsidiary arm box-shaped arm in the claim 1 to 3; It is characterized in that; Said rolling mechanism comprises that said antifriction-bearing box (13) is installed on this bearing pin (8) with respect to the bearing pin (8) of said truss arm (1) stationkeeping.
5. crane subsidiary arm box-shaped arm according to claim 4 reels guiding device, it is characterized in that, the two ends of said antifriction-bearing box (3) are respectively equipped with back-up ring (14).
6. crane subsidiary arm box-shaped arm according to claim 4 reels guiding device, it is characterized in that, said rolling mechanism also comprises the carriage (15) that is fixed on the said truss arm (1), and said bearing pin (8) is installed on this carriage (15).
7. crane subsidiary arm box-shaped arm according to claim 6 reels guiding device; It is characterized in that; Said carriage (15) comprises relative first carrier frame plate (4) and is fixed in second carrier frame plate (11) on this first carrier frame plate (4); Said bearing pin (8) is installed on said relative first carrier frame plate (4), and said second carrier frame plate (11) is fixed on the said truss arm (1).
8. crane subsidiary arm box-shaped arm according to claim 7 reels guiding device; It is characterized in that; Be formed with the slotted eye that is used to regulate this height installation site of second carrier frame plate (11) on said truss arm (1) on said second carrier frame plate (11), this second carrier frame plate (11) is detachably fixed on the said truss arm (1) through this slotted eye and bolt (12).
9. crane subsidiary arm box-shaped arm according to claim 4 reels guiding device, it is characterized in that, the roller (3) that is used to support said box-shaped arm (2) is installed on the said antifriction-bearing box (13).
10. hoisting crane; This hoisting crane comprises hoisting crane principal arm and crane subsidiary arm; Said crane subsidiary arm comprises truss arm (1) and box-shaped arm (2); Said box-shaped arm (2) is installed in the said truss arm (1) through reeling guiding device, it is characterized in that the said guiding device that reels is for to reel guiding device according to each described crane subsidiary arm box-shaped arm in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167745 CN202609834U (en) | 2012-04-19 | 2012-04-19 | Crane fly jib and box jib collecting and pulling guide device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220167745 CN202609834U (en) | 2012-04-19 | 2012-04-19 | Crane fly jib and box jib collecting and pulling guide device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202609834U true CN202609834U (en) | 2012-12-19 |
Family
ID=47343549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220167745 Expired - Fee Related CN202609834U (en) | 2012-04-19 | 2012-04-19 | Crane fly jib and box jib collecting and pulling guide device and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202609834U (en) |
-
2012
- 2012-04-19 CN CN 201220167745 patent/CN202609834U/en not_active Expired - Fee Related
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