CN202687816U

CN202687816U - Slewing mechanism for driving synchronous moving of movable arm and crane body of tower crane

Info

Publication number: CN202687816U
Application number: CN 201220233000
Authority: CN
Inventors: 李淵河
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2013-01-23
Anticipated expiration: 2022-05-18

Abstract

The utility model provides a slewing mechanism for driving synchronous moving of a movable arm and a crane body of a tower crane. The slewing mechanism mainly comprises a tower body, the slewing mechanism arranged at the bottom of the tower body, a sleeving frame cage which is sleeved outside the tower body, and the movable arm which is horizontally arranged on one side of a sleeving frame cage; the slewing mechanism comprises a substrate and a supporting seat and base sectional frames which are arranged at the top of the supporting seat; and the slewing mechanism is arranged at the bottom of the tower body, so that weight on the tower body is reduced to stabilize a gravity center; assembling end faces of the base sectional frames and standard sectional frames which constitute the tower body form a rectangle of which a long side length ratio and a short side length ratio is 1.3 to 9, so that the movable arm can be arranged extending along two long sides of the rectangle, supporting strength and stability of a hoisting operation are increased, and a purpose of increasing bearing capacity of the tower crane is achieved.

Description

The swing arm of tower crane and body of the tower are with moving swing type mechanism

Technical field

The utility model relates to a kind of tower crane, refers to especially to have the tower crane that Horizontal boom and described swing type mechanism are located at the body of the tower below.

Background technology

Tower crane 10 as shown in Figure 1, and a kind of swing type mechanism 13 is located at towering body of the tower 11 tops, and the below of this swing type mechanism 13 and top respectively with

stock cage

12 and 14 groups of upper rotating tower cranes of establishing of swing arm; It should be noted that, its operating feature is that body of the tower 11 does not rotate, this swing type mechanism 13 of mat makes this swing arm 14 turn centered by body of the tower 11, and body of the tower 11 assembling operations and object horizontal lifting reach vertically to hang gets operation, see through this luffing mechanism of being located at swing arm 14 17 and cooperate these swing type mechanisms 13 to reach, so the swing arm 14 of tower crane 10 and the swing type mechanism 13 that drives these swing arm 14 turns there are the essentiality that is positioned at body of the tower 11 tops.

Yet, when the existing tower crane 10 of practical operation, will be located at body of the tower 11 tops because of its swing type mechanism 13 and produce following point:

1, as shown in Figure 1, this swing type mechanism 13 is when assembling body of the tower 11, must shore such as swing arm 14, equilibrium arm 15 etc. and be located thereon the structure of section to form the space of inserting of joint frame, then must drive its topside horizontal rotation during the lifting object, so that this swing type mechanism 13 has the characteristics such as complex structure, bulky, Heavy Weight, when turning round on body of the tower 11 tops, not only make and move on the center of gravity of tower crane 10 and reduce integral structure stability, be unfavorable for that also the staff maintains;

2, shown in Fig. 2 A, the horizontal section of the joint frame 110 of existing tower crane 10 bodies of the tower 11 is square, and shown in Fig. 2 B, have four intersection points with swing arm 14, this four intersection point defines the load-bearing area of 110 pairs of these swing arms 14 of this joint frame jointly, and forms the four intersection point P1s of position on two relative edges of joint frame 110 horizontal sections or four intersection point P2 on four limits with 14 rotations of this swing arm, it should be noted that, the load-bearing area of this four intersection point P on four limits is less than the load-bearing area on two relative edges, so that swing arm 14 can't obtain stable support strength when turn, especially this swing type mechanism 13 is to bear swing arm 14, equilibrium arm 15, turn round in the situation of mechanism's weight such as driver's cab 16, thereby can form consistency strength F in when revolution and cause body of the tower 11 structure generation torsion phenomenon, not only impact has the load-carrying ability of tower crane 10 now, the supporting construction intensity of this body of the tower 11 that more directly weakens in operating process;

3, as shown in Figure 1, for make the staff can clear visual field, operate swing arm 14 exactly, driver's cab 16 is located at swing type mechanism 13 1 sides of swing arm 14 belows usually, thereby can't be along body of the tower 11 liftings, making the staff could enter into driver's cab 16 from ground by the soaring equipment 111 of body of the tower 11 inside operates, not only affect the efficient of personnel operation, its working environment especially is unfavorable for staff's safety;

The utility model content

The technical problems to be solved in the utility model provides a kind of swing arm and together moving swing type mechanism of body of the tower of tower crane, it mainly is that the turn-around machine of tower crane is located at its body of the tower bottom significantly to reduce the weight on body of the tower top, make the body of the tower center of gravity of this tower crane more firm, reach the purpose of the overall construction intensity that increases tower crane.

Another technical matters to be solved in the utility model provides a kind of downside rotation type electro swing type mechanism of tower crane, it mainly is that the group of being located at the standard knot frame of the base section frame at swing type mechanism top and this composition body of the tower is established end face and all is configured as 1.3 to 9 times the oblong that long edge lengths is bond length, and swing arm keeps extending setting along this rectangular two long limit, make swing arm when hoisting operation, have stable support strength, reach the purpose that increases the tower crane weight capacity.

Another technical matters to be solved in the utility model provides a kind of swing arm and together moving swing type mechanism of body of the tower of tower crane, it mainly is to see through swing type mechanism is located at the body of the tower bottom and the swing arm horizontal group is connected to stock cage one side, and the swing arm downside arranges a driver's cab, by this, make this stock cage can be along the body of the tower upper and lower displacement, then driver's cab is able to namely that ground is down in displacement with the stock cage, passes in and out the driver's cab operation in order to personnel, reaches the processing safety that significantly promotes the staff.

The swing arm of the utility model tower crane and body of the tower are with moving swing type mechanism, this hoisting crane mainly has a body of the tower, described body of the tower has a plurality of standard knot framves and forms, and it is outside that a stock cage is sheathed on described body of the tower, and described stock cage bottom one side is provided with a horizontally extending swing arm; Wherein, described body of the tower bottom is provided with single-revolution mechanism, and described swing type mechanism comprises:

One pedestal, bottom are fixedly arranged on a ground, and described pedestal top week side is provided with two relative mount pads;

One supporting base, bottom and described pedestal top set firmly, and the described supporting base bottom peripheral edge outside is configured as a driving section;

One base section frame, be fixedly arranged on described supporting base top, described base section top of the trellis is formed with an oblong group and establishes two oblong groups of end face and described standard knot frame and establish the end face winding, the group of described standard knot frame and described base section frame is established end face and is respectively had relative two long limit and relative two minor faces, and described long edge lengths is 1.3 to 9 times of described bond length;

One power unit, two mount pads that comprise two propulsions source and described pedestal set firmly, and one drive belt ring be around in described pedestal top week side and set firmly with the driving section of described supporting base, described propulsion source drives described driving band and drives described supporting base, base section frame and body of the tower rotation, makes described swing arm moving together as the axle center take described body of the tower.

Wherein, described pedestal is top formed to have one to encircle shoulder and a periphery, and a spacing ring is fixedly arranged on described periphery and is combined to form annular groove with described ring shoulder, is provided with a plurality of balls between the slipping part of described annular groove and described supporting base.

Wherein, described spacing ring is formed with an internal ring portion and an outer portion, and described internal ring portion correspondence is located at the periphery at described pedestal top, and a plurality of spigots place described locating part internal ring portion and described pedestal top periphery lock knot.

Wherein, described pedestal top week side is formed with a ring shoulder, described ring shoulder is formed with a ring groove, and it is a ring tank that the relatively described ring groove of the slipping part place of described supporting base bottom is arranged with, and the corresponding formation of the ring tank annular space of the ring groove of described base ring shoulder and described supporting base slipping part is with accommodating a plurality of balls.

Wherein, described base bottom is formed with one group and establishes section, described group establish have between section and the described ground one fixedly diskware fix, described fixedly diskware is formed with a junction and a fixed part, the described pedestal group section of establishing is fixedly arranged on the connecting portion of described fixedly diskware, a plurality of pilot pins place the connecting portion lock knot that described pedestal group is established section and described fixedly diskware, the fixed part of described fixedly diskware be a plurality of holding-down bolts place and with described ground locking.

Wherein, the driving band of described power unit is formed with a flank of tooth, and described two propulsions source respectively are provided with a driven wheel, and described power gear and the described driving band flank of tooth mesh to drive described supporting base turn.

Wherein, between the driving section of the driving band of described power unit and described supporting bearing, have a plurality of spigots place described driving section and with the locking of described driving band.

Description of drawings

The present invention is further detailed explanation below in conjunction with accompanying drawing and the specific embodiment:

Fig. 1 is the overall appearance scheme drawing of existing tower crane.

Fig. 2 A is the schematic perspective view of existing tower crane rotation structure.

Fig. 2 B is the action scheme drawing that existing tower crane rotation structure drives the swing arm turn.

Fig. 3 A is the three-dimensional appearance scheme drawing of the utility model tower crane.

Fig. 3 B is the local enlarged diagram of this creation Fig. 3 A.

Fig. 4 is the perspective view of the utility model synchronous revolving mechanism.

Fig. 5 is the perspective view after the utility model Fig. 4 revolution.

Fig. 6 is the front-view schematic diagram of the utility model Fig. 5.

Fig. 7 is the action scheme drawing that the utility model tower crane rotation structure drives the swing arm turn.

Description of reference numerals

The 10th, tower crane 11, A are bodies of the tower

The 110th, joint frame 111 is soaring equipment

12, B is that stock cage 13, C are swing type mechanisms

The 14th, swing arm 15, E are equilibrium arms

16, D1 is that driver's cab 17 is luffing mechanisms

P1, P2 are that intersection point F is coherence strength

A1 is the standard knot frame

A11 is that to establish end face D be swing arm to group

G is ground

The 20th, pedestal 21 is that group is established section

The 211st, pilot pin 22 is fixing diskwares

The 221st, connecting portion 222 is fixed parts

The 223rd, holding-down bolt 23 is mount pads

The 30th, supporting base 31 is driving sections

The 40th, base section frame 41 is that group is established end face

The 50th, power unit 51 is propulsions source

The 511st, driven wheel 52 is driving bands

The 521st, the flank of tooth 522 is spigots

A is that long limit b is minor face

The specific embodiment

At first, shown in 3A, the structure schematic appearance that shows swing arm and the together moving swing type mechanism of body of the tower of a kind of tower crane that the utility model provides, this hoisting crane mainly has a body of the tower A, this body of the tower A has a plurality of standard knot frame A1 and forms, respectively this standard knot frame A1 has two relatively and the groups that are rectangle are established end face A11, this body of the tower A is outside sheathed can be along its stock cage B who moves up and down, the C of single-revolution mechanism is located at this body of the tower A bottom and establishes end face A11 winding with the bottom group of the minimum standard knot frame A1 of height and position, wherein, this stock cage B bottom one side is provided with a horizontally extending swing arm D, the end downside of contiguous this stock cage B of this swing arm D is provided with a driver's cab D1, and this stock cage B top relatively side of this swing arm D is provided with the weight that an equilibrium arm E is provided with this swing arm of balance D side.

Preferred embodiment such as Fig. 3 A, Fig. 3 B as for the utility model swing type mechanism C cooperate Fig. 4 to shown in Figure 6, this swing type mechanism C comprises that mainly a pedestal 20 is located at a ground G, and a supporting base 30, a base section frame 40 and a power unit 50 of being located at this pedestal 20, wherein:

This pedestal 20, as shown in Figure 6, bottom has one group to establish section 21, this group is established to be had one fixedly diskware 22 is fixing between section 21 and this ground G, fixedly diskware 22 is formed with a junction 221 and a

fixed part

222,20 groups of this pedestals are established section 21 and are fixedly arranged on this fixedly connecting portion 221 of diskware 22, make a plurality of pilot pins 211 place 20 groups of this pedestals and establish section 21 and be somebody's turn to do the fixedly connecting portion 221 lock knots of diskware 22, and fixedly the fixed part 222 of diskware 22 places for a plurality of holding-down bolts 223 and locks with this ground G; In addition, this pedestal 20 tops week side is provided with two relative mount pads 23;

This supporting base 30 can be located at rotationally this pedestal 20 tops with its bottom, and these supporting base 30 bottoms has a driving section 31;

This base section frame 40, as shown in Figure 4, its bottom screw lock is fixedly arranged on this supporting base 30 tops, and these base section frame 40 tops then are configured as an oblong group and establish end face 41, and establish spigot (not shown) and this standard knot frame A1 winding through a plurality of groups; In present embodiment, shown in Fig. 3 A, Fig. 3 B, respectively this standard knot frame A1 of this body of the tower A is rectangular structure and has two oblong groups and establishes end face A11, the group that makes the group of this standard knot frame A1 establish end face A11 and this base section frame 40 is established end face 41 windings, the group of this standard knot frame A1 and this base section frame 40 is established end face A11,41 and is respectively had relative two long limit a and relative two minor face b, this long limit a length is 1.3 to 9 times of this minor face b length, and this swing arm D is located at this stock cage B one side along this two long limits a bearing of trend;

This power unit 50, such as Fig. 4, shown in Figure 5, comprise that two propulsions source 51 are fixedly arranged on two mount pads 23 of this pedestal 20, and one driving band 52 be fixedly arranged on the driving section 31 of this supporting base 30, in present embodiment, this driving band 52 is formed with a flank of tooth 521, and this two propulsion source 51 respectively is provided with a driven wheel 511, makes this this power gear 511 mesh to drive this supporting base 30 and this base section frame 40 turns with these driving band 52 flank of tooth 521; In addition the driving section 31 of this driving band 52 and this supporting bearing 30 has a plurality of spigots 522 and places locking.

The above is the utility model embodiment primary member and configuration explanation thereof, as for operating mode and the effect thereof of the utility model preferred embodiment, does following explanation.

The swing arm of the utility model tower crane and body of the tower cooperate Fig. 4, shown in Figure 5 with the operating mode of moving swing type mechanism such as Fig. 3 A; In present embodiment, this two propulsion source 51 is a pair of planetary gear speed reducing mechanism, it mainly is to set firmly this two propulsion source 51 in the relative both sides of pedestal 20, establish this driving band with flank of tooth 521 52 in this supporting base 30 bottoms week side group, make the flank of tooth 521 engagements of driven wheel 511 with this driving band 52 of this two propulsion source 51, by this, this two propulsion source 51 is with these driving band 52 actions of its driven wheel 511 tractions, and then drive and supporting base 30 that this driving band 52 sets firmly, and interlock is connected to the body of the tower A revolution of this base section frame 40, reaches to make this Horizontal boom D centered by body of the tower A and moving purpose of revolving simultaneously.

By this, cooperate shown in Figure 7 such as 3A, Fig. 3 B, the utility model sees through that the group of the base section frame 40 of this swing type mechanism C and standard knot frame A1 is established end face 41, A11 is configured as the oblong with two relatively short side a and two relative minor face b, and make this swing arm D one end to being mounted on stock cage B minor face b, when making this swing arm D with body of the tower 11 together moving rotation, be maintained the position of extending along this rectangular two long limit a, reach body of the tower A and offer the support strength of swing arm D and the purpose that stability increases thereof.

In addition, because the lifting amplitude of tower crane and the general proportional relation of support strength of body of the tower A, the utility model sees through the group of this base section frame 40 and this standard knot frame A1 and establishes end face 41, it is 1.3 to 9 (being a/b=1.3～9) that the long limit a of A11 and minor face b have lenth ratio, when making the required lifting amplitude of this tower crane larger, use long, the base section frame 40 that bond length ratio (a/b) is larger and standard knot frame A1, and lifting amplitude smaller, then use the less base section frame 40 of ratio and standard knot frame A1, reach the purpose of effective increase tower crane weight capacity.

In sum, the utility model sees through said structure, swing type mechanism C is located at body of the tower A bottom, and make this swing arm D to being connected to stock cage B one side body of the tower A minor face b, not only make body of the tower A center of gravity and structural strength thereof more firm, cooperate the group of this base section frame 40 and this standard knot frame A1 to establish end face 41, A11 is configured as oblong, more provide this swing arm D when hoisting operation, to have stable support strength and lifting usefulness, and this stock cage B is seen through the counterweight means along this body of the tower A lifting, make the driver's cab D1 that is located at swing arm D be down to ground, and the personnel that are beneficial to pass in and out driver's cab D1 operation, increase staff's processing safety.

Below through the specific embodiment and the embodiment the utility model is had been described in detail, but these are not to consist of restriction of the present utility model.In the situation that does not break away from the utility model principle, those skilled in the art also can make many distortion and improvement, and these also should be considered as protection domain of the present utility model.

Claims

1. the swing arm of a tower crane and body of the tower are with moving swing type mechanism, this hoisting crane mainly has a body of the tower, described body of the tower has a plurality of standard knot framves and forms, and it is outside that a stock cage is sheathed on described body of the tower, and described stock cage bottom one side is provided with a horizontally extending swing arm; It is characterized in that:

Described body of the tower bottom is provided with single-revolution mechanism, and described swing type mechanism comprises:

2. the swing arm of tower crane and body of the tower move together swing type mechanism as claimed in claim 1, it is characterized in that: described pedestal is top formed to have one to encircle shoulder and a periphery, one spacing ring is fixedly arranged on described periphery and is combined to form annular groove with described ring shoulder, is provided with a plurality of balls between the slipping part of described annular groove and described supporting base.

Such as the swing arm of tower crane as described in the claim 1 and body of the tower with moving swing type mechanism, it is characterized in that: described spacing ring is formed with an internal ring portion and an outer portion, described internal ring portion correspondence is located at the periphery at described pedestal top, and a plurality of spigots place described locating part internal ring portion and described pedestal top periphery lock knot.

4. the swing arm of tower crane and body of the tower move together swing type mechanism as claimed in claim 1, it is characterized in that: described pedestal top week side is formed with a ring shoulder, described ring shoulder is formed with a ring groove, and it is a ring tank that the relatively described ring groove of the slipping part place of described supporting base bottom is arranged with, and the corresponding formation of the ring tank annular space of the ring groove of described base ring shoulder and described supporting base slipping part is with accommodating a plurality of balls.

5. the swing arm of tower crane and body of the tower move together swing type mechanism as claimed in claim 1, it is characterized in that: described base bottom is formed with one group and establishes section, described group establish have between section and the described ground one fixedly diskware fix, described fixedly diskware is formed with a junction and a fixed part, the described pedestal group section of establishing is fixedly arranged on the connecting portion of described fixedly diskware, a plurality of pilot pins place the connecting portion lock knot that described pedestal group is established section and described fixedly diskware, the fixed part of described fixedly diskware be a plurality of holding-down bolts place and with described ground locking.

6. the swing arm of tower crane and body of the tower move together swing type mechanism as claimed in claim 1, it is characterized in that: the driving band of described power unit is formed with a flank of tooth, described two propulsions source respectively are provided with a driven wheel, and described power gear and the described driving band flank of tooth mesh to drive described supporting base turn.

Such as the swing arm of tower crane as described in the claim 1 and body of the tower with moving swing type mechanism, it is characterized in that: between the driving section of the driving band of described power unit and described supporting bearing, have a plurality of spigots and place described driving section and lock with described driving band.