CN203474312U

CN203474312U - Crane

Info

Publication number: CN203474312U
Application number: CN201320617359.4U
Authority: CN
Inventors: 宋明健; 张建斌; 陈军超
Original assignee: Mcc 19 Chengdu Construction Co Ltd; China 19th Metallurgical Corp
Current assignee: Mcc 19 Chengdu Construction Co Ltd; China 19th Metallurgical Corp
Priority date: 2013-10-08
Filing date: 2013-10-08
Publication date: 2014-03-12
Anticipated expiration: 2023-10-08

Abstract

The utility model relates to a crane. A tape is arranged on a tail section suspension arm and provided with a flexible rule outlet, a flexible rule is arranged in the tape in a wound mode, a suspension loop is arranged at the initial end of the flexible rule and connected to the side face of the end of a first suspension arm, and the crane is further provided with an angle ruler used for measuring angles of the suspension arms. The angle ruler can be arranged on the tail section suspension arm and comprises an angular scale with an angle central point, a plumb line and a plumb, wherein the angular scale is provided with angle scales; the angle ruler can also be arranged at a position, close to the tail section suspension arm, of a suspension arm base and comprises an annular scale with scales. The tail section suspension arm is provided with an angle line parallel with a suspension arm axis. By the adoption of the crane, extending lengths of the suspension arms can be read through the tape, the annular scale can be used for reading lifting angles of the suspension arms, and therefore the height of the highest point where the suspension arms are located is calculated, barriers can be avoided in an operation process, and safety is increased.

Description

Crane

Technical field

The utility model relates to a kind of crane, and concrete is a kind of crane that can conveniently calculate arm vertex actual height of living in.

Background technology

Lifting operation refers to and utilizes large-scale crane that the weights such as machinery, building materials are sling, and then transfers to the position needing, and completes and installs or process in place.During traditional lifting operation, need present staff by observing the current location of arm and weight, and immediately command crane operation personnel to realize arm and weight dodging peripheral obstacle.Adopt this mode of operation, ground staff is difficult to arm actual height to make accurate judgement, the lifting operation under high-tension cable for example, according to industry standard, need to allow arm away from the above distances of 2 meters of high-tension cables, and arm reaches after eminence, ground staff cannot to accurate judgement now arm whether be in the safety distance of cable, once enter safety distance, likely cause the serious consequence of electric shock.

Utility model content

Technical problem to be solved in the utility model is: a kind of crane is provided, can calculates easily the current residing actual height of arm.

The utility model solves the technical scheme that its technical matters adopts:

Crane, comprise the minor details arm being arranged on arm base and be positioned at suspension arm of crane the first arm foremost, on described minor details arm, be provided with tape measure, described tape measure comprises outside tape measure shell and is wrapped in the tape in tape measure shell, on described tape measure shell, be provided with tape outlet, described tape measure shell is fixedly mounted on minor details arm, at tape initiating terminal, is provided with link, and described link is connected to the side of the first arm outermost end; In the angle of described minor details arm and arm base, be also provided with for measuring the bevel protractor of boom angle.

Further, described bevel protractor is arranged on minor details arm, it comprises with the angle scale of angle center-point, plumb bob vertical and vertical, on described angle scale, be provided with angle index, angle scale is fixedly installed on minor details arm by angle center-point, one end of described plumb bob vertical is connected on angle center-point, and the other end is connected with vertical.

Further, be provided with angle zero point on described angle scale, the line between described angle zero point and angle center-point is parallel with the axis of the first arm.

Further, described angle scale place plane is parallel with plumb bob vertical.

Further, described bevel protractor is arranged on arm base, and it comprises is with graduated angle scale, and the angle center-point of described angle scale is arranged on the position of minor details arm and arm base point of connection; On described minor details arm, be provided with the angle line parallel with arm axis.

Further, on described angle scale, be provided with angle zero point, described angle zero point and angle central spot on same level line, and on angle scale 32 near a side of arm hydraulic stem; Described angle scale place plane is parallel with angle line.

Further, the line between described tape outlet and link is parallel with the axis of the first arm.

The beneficial effects of the utility model are: adopt crane of the present utility model, can calculate easily the residing height of arm vertex, can avoiding obstacles in operation process, and increase safety.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a kind of embodiment of crane of the present utility model;

Fig. 2 is the enlarged diagram of bevel protractor in Fig. 1;

Fig. 3 is the enlarged diagram of tape measure in Fig. 1;

Fig. 4 is the schematic diagram of the another kind of embodiment of crane of the present utility model;

In figure, Reference numeral is: 1-minor details arm, 11-angle line, 2-tape measure, 22-tape, 23-link, the outlet of 25-tape, 3-bevel protractor, 31-angle center-point, 32-angle scale, 33-vertical, 34-plumb bob vertical, 35-angle zero point, 4-the first arm, 5-arm hydraulic stem.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is further illustrated: as shown in Figure 1, Figure 2, Figure 3 and Figure 4:

Crane, comprise the minor details arm 1 being arranged on arm base 10 and be positioned at suspension arm of crane the first arm 4 foremost, on described minor details arm 1, be provided with tape measure 2, described tape measure 2 comprises outside tape measure shell 24 and is wrapped in the tape 22 in tape measure shell 24, on described tape measure shell 24, be provided with tape outlet 25, described tape measure shell 24 is fixedly mounted on minor details arm 1, at tape 22 initiating terminals, is provided with link 23, and described link 23 is connected to the side of the first arm 4 outermost end; In described minor details arm 1 and the angle of arm base 10, be also provided with for measuring the bevel protractor 3 of boom angle.

As a kind of basic embodiment, on the minor details arm 1 of crane, tape measure 2 is installed, described tape measure 2 comprises outside tape measure shell 24 and is wrapped in the tape 22 in tape measure shell 24, and the link 23 of tape 22 initiating terminals is connected to the side of crane the first arm 4 outermost end.When crane stretches out, the tape outlet 25 of tape 22 from tape measure shell 24 pulled out, and by reading the scale of tape 22, can learn the distance that arm stretches out.The tape measure 2 of installing on described minor details arm 1, the tape measure preferably with tape automatic retraction function, be that torsion spring or other elastomeric elements are equipped with in tape measure inside, after tape is drawn out, the elasticity of elastomeric element can allow tape keep exceptionally straight state, or when arm is retracted, tape can automatic retraction tape measure shell 24 in.If adopted common tape measure, need the backrush of manual operation tape measure, not too convenient during operation at the scene.

In described minor details arm 1 and the angle of arm base 10, be also provided with for measuring the bevel protractor 3 of boom angle, the effect of bevel protractor 3 is to measure arm angle now.

Its embodiment can be: as depicted in figs. 1 and 2, described bevel protractor 3 is arranged on minor details arm 1, it comprises angle scale 32, plumb bob vertical 34 and vertical 33 with angle center-point 31, on described angle scale 32, be provided with angle index, angle scale 32 is fixedly installed on minor details arm 1 by angle center-point 31, one end of described plumb bob vertical 34 is connected on angle center-point 31, and the other end is connected with vertical 33.

Angle center-point 31 described here refers to the center of circle loca of the angle index arranging on angle scale 32.Described angle scale 32 is fixed on the minor details arm 1 of crane, vertical 33 and plumb bob vertical 34 are under gravity effect, all the time can keep state straight down, therefore plumb bob vertical 34 is just equivalent to pointer on angle scale 32, plumb bob vertical 34 is a corresponding angle index on angle scale 32, the scale that deducts arm axis correspondence on calibrated disc 32 with this scale, can obtain the angle β between arm and plumb bob vertical 34.During actual production, measure in advance the height h of the attachment point of minor details arm 1 on arm base 10, and the distance a between this attachment point and tape outlet 25, after arm stretches out to a certain angle, tape 22 is drawn out, by reading tape 22 scale now, can obtain length b, then read and obtain angle β by plumb bob vertical 34.Utilize mathematical formulae (a+b) cos β+h can calculate the now residing actual height of arm vertex.

Above-mentioned embodiment, on described angle scale 32, be provided with angle index, the position of the angle 0. 35 in scale can be selected arbitrarily, as long as can read or calculate angle β, for example the scale of arm axis indication is 10 °, and the scale of plumb bob vertical 34 indication is 50 °, can calculate °-10 °=40 °, β=50.Convenient, preferred for angle calculation, can be to be provided with angle 0. 35 on described angle scale 32, the line between described angle 0. 35 and angle center-point 31 is parallel with the axis of the first arm 4.Adopt this embodiment, angle-data is read in survey can be convenient directly perceived, the angle β that scale of plumb bob vertical 34 indications is.

In above-mentioned embodiment, the position of described angle scale 32 place planes can arrange arbitrarily, as long as can utilize plumb bob vertical 34 indication angles, preferred, can be that described angle scale 32 place planes are parallel with plumb bob vertical 34.Adopt this optimal way, when vertical 33 vertically loosens, plumb bob vertical 34 meetings and angle scale 32 keeping parallelism states, are conducive to angle-data and read accuracy, reduce error.

Bevel protractor 3 on crane also can adopt following embodiment: as shown in Figure 4, described bevel protractor 3 is arranged on arm base 10, it comprises the position of being with graduated angle scale 32, the angle center-point 31 of described angle scale 32 to be arranged on minor details arm 1 and arm base 10 point of connection; On described minor details arm 1, be provided with the angle line parallel with arm axis 11.

While adopting this embodiment, angle scale 32 is set on arm base 10, the angle center-point 31 of angle scale 32 will be arranged on minor details arm 1 and crane point of connection place, when arm is inclined upwardly after certain angle, the angle line 11 arranging on arm can be indicated an angle index, with this scale, deduct the corresponding scale of horizon through angle center-point 31, obtain the angle η between arm and horizon.During actual production, with a upper principle that embodiment is identical, utilize mathematical formulae (a+b) sin η+h can calculate the now residing actual height of arm vertex.And angle scale 32 is arranged on arm base 10, when arm horizontally rotates together with arm base 10, and then rotation together of angle scale 32, can not bump with arm.In addition in present embodiment, can fluting be set the scale mark position on angle scale 32, through fluting, can see the angle line 11 on minor details arm 1, to facilitate reading out data.

Identical with the setting principle of scale position in angle scale 32 first embodiment, as long as angle scale 32 high scales can arrange arbitrarily and can read or calculate angle η in the present embodiment; Angle scale 32 place planes can arrange arbitrarily, as long as can utilize angle line 11 indication angles.Preferably, can be, on described angle scale 32, be provided with angle 0. 35, described angle 0. 35 with angle center-point 31 on same level line, and on angle scale 32 near a side of arm hydraulic stem 5; Described angle scale 32 place planes are parallel with angle line 11.

Such benefit is, surveying can be convenient directly perceived while reading angle-data, and when arm hydraulic stem 5 promotes arms and is inclined upwardly certain angle, the scale of angle line 11 indications is angle η; And angle line 11 is parallel with angle scale 32, be conducive to angle-data and read accuracy, reduce error.

Above in all embodiments, tape outlet 25 can be arranged on the optional position of minor details arm 1 side, if but, line and the first arm 4 between tape outlet 25 and link 23 are not parallel, just there will be tape 22 arms circumferentially to have certain winding, affect data and read accuracy rate.So preferred, the line that can be designed between described tape outlet 25 and link 23 is parallel with the axis of the first arm 4, the distance that makes on tape 22 scale that shows can accurate response arm stretch out, there will not be tape 22 to be circumferentially wound around formation error along arm.

During actual production, suppose to have its antenna height of high-tension cable in vain at L on lifting scene, safety distance is M, and the height that arm vertex should be limited in to L-M is constructed below; By aforesaid method, instant computing goes out the residing actual height of arm vertex, and allows arm height remain under the height of L-M, and then realizes safe operation.

Claims

1. crane, comprise the minor details arm (1) being arranged on arm base (10) and be positioned at suspension arm of crane the first arm (4) foremost, it is characterized in that, on described minor details arm (1), be provided with tape measure (2), described tape measure (2) comprises outside tape measure shell (24) and is wrapped in the tape (22) in tape measure shell (24), on described tape measure shell (24), be provided with tape outlet (25), described tape measure shell (24) is fixedly mounted on minor details arm (1), at tape (22) initiating terminal, be provided with link (23), described link (23) is connected to the side of the first arm (4) outermost end, in described minor details arm (1) and the angle of arm base (10), be also provided with the bevel protractor (3) for measuring boom angle.

2. crane as claimed in claim 1, it is characterized in that, described bevel protractor (3) is arranged on minor details arm (1), it comprises with the angle scale of angle center-point (31) (32), plumb bob vertical (34) and vertical (33), described angle scale is provided with angle index on (32), angle scale (32) is fixedly installed on minor details arm (1) by angle center-point (31), it is upper that one end of described plumb bob vertical (34) is connected to angle center-point (31), and the other end is connected with vertical (33).

3. crane as claimed in claim 2, is characterized in that, is provided with angle zero point (35) on described angle scale (32), and the line between described angle zero point (35) and angle center-point (31) is parallel with the axis of the first arm (4).

4. crane as claimed in claim 2, is characterized in that, described angle scale (32) place plane is parallel with plumb bob vertical (34).

5. crane as claimed in claim 1, it is characterized in that, described bevel protractor (3) is arranged on arm base (10), it comprises is with graduated angle scale (32), and the angle center-point (31) of described angle scale (32) is arranged on the position of minor details arm (1) and arm base (10) point of connection; On described minor details arm (1), be provided with the angle line parallel with arm axis (11).

6. crane as claimed in claim 5, it is characterized in that, on described angle scale (32), be provided with angle zero point (35), described angle zero point (35) and angle center-point (31) are on same level line, and the side in the upper close arm hydraulic stem (5) of angle scale (32); Described angle scale (32) place plane is parallel with angle line (11).

7. the crane as described in any one claim in claim 1～6, is characterized in that, the line between described tape outlet (25) and link (23) is parallel with the axis of the first arm (4).