CN220537388U - Crane - Google Patents

Abstract

The utility model discloses a crane, which belongs to the field of stage machinery, and comprises: the four groups of direction-changing pulley components are arranged at four corners of two sides of the machine base assembly body; the driving device is arranged at the middle part of the machine base assembly body and is provided with left and right outgoing shafts with opposite directions; the left and right output shafts of the driving device are respectively connected with the left and right T-shaped lead screw rope guide mechanisms through the left and right transmission reel mechanisms and can respectively drive the left and right T-shaped lead screw rope guide mechanisms to rotate; one end of the left first lifting rope and one end of the left second lifting rope are connected with the left transmission reel mechanism, the other end of the left first lifting rope and the left second lifting rope are prop lifting ends, and the left first lifting rope and the left second lifting rope extend to the lower part of the installation section steel after being changed by the left-handed T-shaped lead screw rope guide mechanism and the left two redirecting pulley blocks respectively; one end of the right first lifting rope and one end of the right second lifting rope are connected with the right transmission reel mechanism, the other end is a prop lifting end, and the prop lifting ends are respectively extended to the lower part of the installation section steel after being changed by the right-handed T-shaped lead screw rope guiding mechanism and the right two redirecting pulley blocks. The crane is stable in operation, the performance is effectively improved, and the operation failure rate can be obviously reduced.

Description

Crane

Technical Field

The utility model relates to the field of stage mechanical equipment, in particular to a crane.

Background

Many times, small-sized cranes for lifting props are arranged in stage theatre performances, and generally, props with smaller hanging sizes or lighter weight are hung, and the conventional small-sized cranes mostly adopt a single-reel single-rope-outlet structure or a single-reel double-rope-outlet structure. If clustered hanging prop matrix performance is carried out by adopting two cranes with small load capacity in the past to lift and hang a long-size prop, the operation failure rate of crane equipment is increased after the number of crane matrixes is increased to a certain extent, and then the performance effect of a theatre and the experience feeling of tourists are influenced, and more serious safety accidents possibly occur.

Therefore, how to provide a crane capable of hanging large-size props by a single machine, so as to remarkably reduce the probability of safety accidents in the performance process is a problem to be solved.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide a crane which can realize that a single machine hangs large-size props, obviously reduce the probability of safety accidents in the performance process and further solve the technical problems in the prior art.

The utility model aims at realizing the following technical scheme:

a crane, comprising:

the device comprises a machine base assembly body, mounting section steel, four groups of redirecting pulley blocks, a driving device, a left double rope outlet device, a right double rope outlet device, a left first lifting rope, a left second lifting rope, a right first lifting rope and a right second lifting rope; wherein,

the base assembly body is fixedly arranged on the mounting section steel;

the four groups of direction-changing pulley components are arranged at four corners of two sides of the base assembly body;

the driving device is fixedly arranged at the middle part of the machine base assembly body, and is provided with a left-side output shaft and a right-side output shaft which are opposite in direction, and the left-side output shaft and the right-side output shaft are respectively arranged along the length direction of the machine base assembly body;

The left double rope outlet device and the right double rope outlet device are respectively arranged on the left side and the right side of the driving device and are fixedly arranged on the base assembly body;

the left side rope outlet shaft of the driving device is connected with the left side double rope outlet device and can drive the left side double rope outlet device to rotate;

the right side rope outlet shaft of the driving device is connected with the left side double rope outlet device and can drive the right side double rope outlet device to rotate;

one end of the left lifting rope is connected with the left double-rope outlet device, the other end of the left lifting rope is used as a left lifting end of the prop, and the left lifting rope is changed to extend to the lower part of the installation section steel through a left redirecting pulley block;

one end of the left two lifting ropes is connected with the left double-rope outlet device, the other end of the left two lifting ropes is used as a left two lifting end of the prop, and the left two lifting ropes extend to the lower part of the installation section steel through the other redirecting pulley block on the left side;

one end of the right lifting rope is connected with the right double-rope outlet device, the other end of the right lifting rope is used as a right lifting end of the prop, and the right lifting rope is changed to extend to the lower part of the installation section steel through a redirecting pulley block on the right side;

one end of the right two lifting ropes is connected to the right double-rope outlet device, the other end of the right two lifting ropes is used as a right two-lifting end of the prop, and the right two-lifting end of the right two-lifting rope extends to the lower portion of the installation section steel backwards through the other redirecting pulley block on the right side.

Compared with the prior art, the crane provided by the utility model has the beneficial effects that:

through setting up left side play axle and right side play axle to installing the single drive arrangement on the frame assembly body, cooperation left side is two to go out rope device, right side is two to go out rope device, two sets of pulley blocks that change direction of left side, two sets of pulley blocks that change direction of right side form the two reel four rope hoist structures that go out of two sides can synchronous drive four lifting ropes, can realize that single loop wheel machine hangs jumbo size stage property load, can show the fault rate that reduces whole matrix product, and the lifting rope quantity of single loop wheel machine configuration has very big safe redundancy, reduces the probability that the security accident takes place in the performance process greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a crane according to an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a left-handed T-shaped lead screw rope guiding mechanism of a crane according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a right-handed T-shaped lead screw rope guiding mechanism of a crane according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a base assembly of a crane according to an embodiment of the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it will be apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, which do not constitute limitations of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms that may be used herein will first be described as follows:

the term "and/or" is intended to mean that either or both may be implemented, e.g., X and/or Y are intended to include both the cases of "X" or "Y" and the cases of "X and Y".

The terms "comprises," "comprising," "includes," "including," "has," "having" or other similar referents are to be construed to cover a non-exclusive inclusion. For example: including a particular feature (e.g., a starting material, component, ingredient, carrier, formulation, material, dimension, part, means, mechanism, apparatus, step, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product or article of manufacture, etc.), should be construed as including not only a particular feature but also other features known in the art that are not explicitly recited.

The term "consisting of … …" is meant to exclude any technical feature element not explicitly listed. If such term is used in a claim, the term will cause the claim to be closed, such that it does not include technical features other than those specifically listed, except for conventional impurities associated therewith. If the term is intended to appear in only a clause of a claim, it is intended to limit only the elements explicitly recited in that clause, and the elements recited in other clauses are not excluded from the overall claim.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like should be construed broadly to include, for example: the connecting device can be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms herein above will be understood by those of ordinary skill in the art as the case may be.

The terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description and to simplify the description, and do not explicitly or implicitly indicate that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure.

The crane provided by the utility model is described in detail below. What is not described in detail in the embodiments of the present utility model belongs to the prior art known to those skilled in the art. The specific conditions are not noted in the examples of the present utility model and are carried out according to the conditions conventional in the art or suggested by the manufacturer. The reagents or apparatus used in the examples of the present utility model were conventional products commercially available without the manufacturer's knowledge.

As shown in fig. 1, an embodiment of the present utility model provides a crane, including:

the machine seat assembly 200, the mounting section steel 1, four groups of redirecting pulley blocks, the driving device 12, a left double rope outlet device, a right double rope outlet device, a left first lifting rope 41, a left second lifting rope 42, a right first lifting rope 43 and a right second lifting rope 44; wherein,

the base assembly 200 is fixedly arranged on the installation section steel 1;

the four groups of direction-changing pulley groups are arranged at four corners of two sides of the base assembly 200; preferably, the four groups of redirecting pulley blocks have the same structural form;

the driving device 12 is fixedly arranged at the middle part of the stand assembly 200, the driving device 12 is provided with a left side output shaft and a right side output shaft which are opposite in direction, and the left side output shaft and the right side output shaft are respectively arranged along the length direction of the stand assembly 200;

The left double rope discharging device and the right double rope discharging device are respectively arranged on the left side and the right side of the driving device 12 and are fixedly arranged on the base assembly 200;

the left side output shaft of the driving device 12 is connected with the left side double-output rope device and can drive the left side double-output rope device to rotate;

the right-side rope outlet shaft of the driving device 12 is connected with the right-side double rope outlet device and can drive the right-side double rope outlet device to rotate;

one end of the left lifting rope 41 is connected with the left double-rope outlet device, the other end is used as a left lifting end of the prop, and the left lifting end is extended back to the lower part of the installation section steel 1 through a left redirecting pulley block;

one end of the left two lifting ropes 42 is connected with the left double-rope outlet device, the other end is used as a left two lifting end of the prop, and the left two lifting ends extend to the lower part of the installation section steel 1 through the other redirecting pulley block on the left side;

one end of the right lifting rope 43 is connected with the right double-rope outlet device, the other end is used as a right lifting end of the prop, and the right lifting rope is extended back to the lower part of the installation section steel 1 through a redirecting pulley block on the right side;

one end of the right two lifting ropes 44 is connected to the right two-rope-outlet device, the other end is used as a right two-lifting end of the prop, and the right two-lifting end is extended back to the lower side of the installation section steel 1 through the other redirecting pulley block on the right side.

Preferably, in the crane, the left double rope outlet device includes:

a left side transmission reel mechanism and a left-hand T-shaped lead screw rope guiding mechanism 500; wherein,

the left-side transmission reel mechanism and the left-hand T-shaped lead screw rope guide mechanism 500 are fixedly arranged on the base assembly 200 at the left side of the driving device 12, and the left-hand T-shaped lead screw rope guide mechanism 500 is positioned right below the left-side transmission reel mechanism;

the left output shaft of the driving device 12 is connected with the left-hand T-shaped lead screw rope guiding mechanism 500 through a left transmission drum mechanism, and can drive the left-hand T-shaped lead screw rope guiding mechanism 500 to rotate;

one end of the left lifting rope 41 is connected with the left transmission drum mechanism, and the other end serving as a left lifting end of the prop is respectively extended back to the lower part of the installation section steel 1 through the left-hand T-shaped lead screw rope guide mechanism 500 and a left redirecting pulley block;

one end of the left two lifting ropes 42 is connected to the left side transmission drum mechanism, and the other end serving as a left two lifting ends of the prop is respectively extended to the lower side of the installation section steel 1 backwards through the left-hand T-shaped lead screw rope guiding mechanism 500 and the other left redirecting pulley block.

Preferably, in the crane, the left-handed T-shaped lead screw rope guiding mechanism 500 has a structure as shown in fig. 2, and includes:

The left-hand large synchronous pulley 502, the left-hand T-shaped lead screw 503, the left-hand T-shaped nut seat 504, the left-hand T-shaped nut seat 510, the left-hand rope guiding wheel bracket 505, the left-hand redirecting pulley block 506, the left-hand rope guiding wheel bracket 507, the first left-hand redirecting pulley block 508 and the second left-hand redirecting pulley block 509; wherein,

the screw bearing seat assembly 501 is fixedly connected with the machine base assembly 200;

the left-hand T-shaped lead screw 503 is arranged on the lead screw bearing seat assembly 501 in a penetrating way, and one end of the left-hand T-shaped lead screw 503 is fixedly provided with the left large synchronous pulley 502;

the left first T-shaped nut seat 504 and the left second T-shaped nut seat 510 are connected to the left-handed T-shaped screw 503 through screw pairs, and anti-rotation sliding grooves engaged with the base assembly 200 are formed in the sides of the left first T-shaped nut seat 504 and the left second T-shaped nut seat 510;

the left rope guiding wheel bracket 505 is fixedly arranged on the left T-shaped nut seat 504, and the left redirecting pulley block 506 is fixedly arranged at one end of the left rope guiding wheel bracket 505;

the left two rope guiding wheel brackets 507 are fixedly arranged on the left two T-shaped nut seats 510, the first left two redirecting pulley blocks 508 are fixedly arranged on the other ends of the left two rope guiding wheel brackets 507 and are positioned on the opposite sides of the left one redirecting pulley blocks 506, and the second left two redirecting pulley blocks 509 are fixedly arranged under the other ends of the left two rope guiding wheel brackets 507 and are positioned under the first left two redirecting pulley blocks 508.

Preferably, in the left-handed T-shaped lead screw rope guiding mechanism 500, the rope-out direction of the pulley of the left-handed redirecting pulley block 506 is parallel to the axial direction of the left-handed T-shaped lead screw 503;

the pulley rope outlet direction of the second left two redirecting pulley blocks 509 is parallel to the axial direction of the left-handed T-shaped lead screw 503;

the pulley rope-out direction of the first left two redirecting pulley blocks 508 is perpendicular to the axial direction of the left-handed T-shaped screw 503.

Preferably, in the crane, the left side transmission drum mechanism includes:

a small synchronous pulley 7, a reel driving shaft 10, a reel 8, a reel seat 9, a tooth-shaped synchronous belt 13 and a coupler 11; wherein,

one end of the coupler 11 is connected with one side output shaft of the driving device, and the other end of the coupler is connected with one end of the reel driving shaft 10;

the winding drum 8 is arranged on the machine base assembly 200 through the winding drum seat 9, the winding drum 8 is fixedly arranged on the winding drum driving shaft 10 in a penetrating way, and the winding drum 8 can rotate on the winding drum seat 9 under the driving of the winding drum driving shaft 10;

the other end of the reel driving shaft 10 is fixedly provided with the small synchronous pulley 7, and the small synchronous pulley 7 can be connected with a large synchronous pulley arranged below through the toothed synchronous belt 13.

Preferably, in the left-side transmission reel mechanism, the reel 8 and the reel seat 9 are positioned right above the left-side T-shaped lead screw rope guiding mechanism.

Preferably, in the crane, the right double rope outlet device includes:

a right side drive spool mechanism and a right-hand T-shaped lead screw rope guide mechanism 600; wherein,

the right-side transmission reel mechanism and the right-hand T-shaped lead screw rope guide mechanism 600 are fixedly arranged on the base assembly 200 on the right side of the driving device 12, and the right-hand T-shaped lead screw rope guide mechanism 600 is positioned right below the right-side transmission reel mechanism;

the right output shaft of the driving device 12 is connected with the right-hand T-shaped lead screw rope guiding mechanism 600 through a right-hand transmission drum mechanism, and can drive the right-hand T-shaped lead screw rope guiding mechanism 600 to rotate;

one end of the right lifting rope 43 is connected to the right transmission drum mechanism, the other end is used as a right lifting end of the prop, and the right lifting rope and the right redirecting pulley block extend to the lower side of the installation section steel 1 after being respectively changed by the right-handed T-shaped lead screw rope guide mechanism 600;

one end of the right two lifting ropes 44 is connected to the right side transmission drum mechanism, the other end is used as a right two lifting ends of the prop, and the right two lifting ends extend to the lower side of the installation section steel 1 backwards through the right-hand T-shaped lead screw rope guiding mechanism 600 and the other direction-changing pulley block on the right side.

Preferably, in the crane, the structure of the right-handed T-shaped lead screw rope guiding mechanism 600 is as shown in fig. 3, and includes:

the right side lead screw bearing seat assembly 601, the right side large synchronous pulley 602, the right-hand T-shaped lead screw 603, the right-hand T-shaped nut seat 604, the right-hand T-shaped nut seat 610, the right-hand rope guiding wheel bracket 605, the right-hand redirecting pulley block 606, the right-hand rope guiding wheel bracket 607, the first right-hand redirecting pulley block 608 and the second right-hand redirecting pulley block 609; wherein,

the right lead screw bearing seat assembly 601 is fixedly connected with the base assembly 200;

the right-hand T-shaped lead screw 603 is arranged on the right-hand lead screw bearing seat assembly 601 in a penetrating way, and one end of the right-hand T-shaped lead screw 603 is fixedly provided with the right-hand large synchronous pulley 602;

the right first T-shaped nut seat 604 and the right second T-shaped nut seat 610 are connected to the right-handed T-shaped screw 603 through screw pairs, and anti-rotation sliding grooves engaged with the base assembly 200 are formed in the sides of the right first T-shaped nut seat 604 and the right second T-shaped nut seat 610;

the right rope guiding wheel bracket 605 is fixedly arranged on the right T-shaped nut seat 604, and the right redirecting pulley block 606 is fixedly arranged at one end of the right rope guiding wheel bracket 605;

The right two rope guiding wheel bracket 607 is fixedly arranged on the right two T-shaped nut seat 610, the first right two redirecting pulley block 608 is fixedly arranged on the other end of the right two rope guiding wheel bracket 607 and is positioned on the opposite side of the right one redirecting pulley block 606, and the second right two redirecting pulley block 609 is fixedly arranged under the other end of the right two rope guiding wheel bracket 607 and is positioned under the first right two redirecting pulley block 608.

Preferably, in the crane, the rope-discharging direction of the pulley of the right redirecting pulley block 606 is parallel to the axial direction of the right turning T-shaped screw 603;

the pulley rope outlet direction of the second right redirecting pulley block 609 is parallel to the axial direction of the right-handed T-shaped screw 603;

the pulley rope-out direction of the first right redirecting pulley block 608 is perpendicular to the axial direction of the right-handed T-shaped screw 603.

Preferably, in the crane, the frame assembly 200 has a structure as shown in fig. 4, and includes: a unit connection frame 201, two frame plates 202, a speed reducer base plate 203, and four guide rails 204; wherein,

the bottom surface of the unit connecting frame 201 is fixedly connected with the upper surface of the mounting section steel 1 through a fastener, and two frame plates 202 which are vertically and fixedly mounted at the front and rear are arranged at the upper part of the middle of the unit connecting frame 201;

The middle upper plane of the two frame plates 202 is fixedly provided with a speed reducer base plate 203, and the width of the speed reducer base plate 203 is larger than that of the two frame plates 202;

four guide rails 204 with the same structure are fixedly connected to the inner side of the two frame plates 202 near the left end and the right end in the x-axis direction and the y-axis direction in a pairwise opposite manner.

Preferably, in the crane, the driving device employs a servo gear motor 12, and the servo gear motor 12 is fixedly disposed at a middle position above the speed reducer base plate 203 of the base assembly 200.

Preferably, in the crane, the right-side transmission drum mechanism has the same configuration as the left-side transmission drum mechanism, and the difference is that: the winding drum 8 and the winding drum seat 9 of the right-side transmission winding drum mechanism are positioned right above the right-side T-shaped lead screw rope guide mechanism; please refer to the description of the left-hand drive reel mechanism, which is not repeated.

Preferably, in the crane, the installation section steel 1 is a C-shaped curled edge installation section steel, and two ends of the installation section steel can be conveniently welded and fixed on a roof or a steel structure needing to hoist props.

Preferably, in the crane, the first left lifting rope, the second left lifting rope, the first right lifting rope and the second right lifting rope are all made of a dinima lifting rope.

In summary, the crane provided by the embodiment of the utility model can drive four lifting ropes to hoist props through a single driving device, so that the stability and the safety are improved, and the control complexity is reduced.

In order to clearly demonstrate the technical scheme and the technical effects provided by the utility model, the crane provided by the embodiment of the utility model is described in detail below by using specific embodiments.

Example 1

As shown in fig. 1, an embodiment of the present utility model provides a crane, including:

the device comprises C-shaped curled edge mounting section steel 1, a machine base assembly 200, four groups of redirecting pulley blocks 3, a left first lifting rope 41, a left second lifting rope 42, a right first lifting rope 43, a right second lifting rope 44, a left side transmission reel mechanism and a left-hand T-shaped lead screw rope guide mechanism 500 which form a left side double rope outlet device, a right side transmission reel mechanism and a right-hand T-shaped lead screw rope guide mechanism 600 which form a right side double rope outlet device, and a servo speed reduction motor 12 as a driving device;

wherein, the constitution of left side transmission reel mechanism is the same with right side transmission reel mechanism, all includes: a small synchronous pulley 7, a winding drum 8, a winding drum seat 9, a winding drum driving shaft 10, a coupling 11 and a tooth-shaped synchronous belt 13;

the C-shaped curled edge mounting section steel 1 is fixedly connected to the upper plane of the structural conversion layer of the roof net rack by welding in the mounting process, but can also be welded and fixed to the upper planes of other high-altitude steel structural bodies. The housing assembly 200 includes: a unit connection frame 201, two frame plates 202, a speed reducer base plate 203, and four guide rails 204; the bottom surface of the unit connecting frame 201 is fixedly connected with the upper top surface of the C-shaped curled edge mounting section steel 1 through a fastener, and two frame plates 202 which are vertically mounted and fixed in front and back are arranged at the upper middle part of the unit connecting frame 201; a speed reducer base plate 203 is fixedly arranged on the upper plane of the middle of the two frame plates 202, and the width of the speed reducer base plate 203 is slightly wider than that of the two frame plates 202; four guide rails 204 with the same structure are fixedly connected to the inner side of the two frame plates 202 near the left end and the right end in a two-to-two opposite manner about the x-axis and y-axis graphic coordinate axes.

The servo gear motor 12 is fixedly connected to the middle position above the speed reducer base plate 203 of the base assembly 200, and is a power output unit, and the output shaft direction of the servo gear motor is along the long side direction of the base assembly 200, and the two output shaft directions are opposite; the shaft couplings 11 are respectively arranged at the left side and the right side of the servo speed reduction motor 12, one end of the shaft couplings is fixedly connected with the output shaft of the servo speed reduction motor 12, and the other end of the shaft couplings is fixedly connected with one end of the reel driving shaft 10, so that the rotary motion of the servo speed reduction motor 12 is transmitted to the reel driving shaft 10;

the winding drum 8 is a cylindrical part, the winding drum driving shaft 10 is fixedly arranged on the central axis of the winding drum 8 along the rotation axis direction of the winding drum 8, and the length of the winding drum driving shaft 10 is larger than the width of the winding drum 8. The two side extending ends of the reel driving shaft 10 are respectively hinged with the reel seat 9; the reel seat 9 is provided with two groups of four pieces, is symmetrically arranged on two sides of the reel 8 in pairs about a y-axis graphic coordinate axis and is fixedly connected with the upper surface of the frame plate 202; the small synchronous pulley 7 is fixedly connected to the tail end of the reel driving shaft 10.

The four groups of redirecting pulley blocks 3 with the same structural style are respectively fixed at four corner positions of the stand assembly body 200;

As shown in fig. 2, the left-hand T-shaped lead screw rope guiding mechanism 500 includes: left lead screw bearing seat 501, left large synchronous pulley 502, left-handed T-shaped lead screw 503, left-handed T-shaped nut seat 504, left-handed T-shaped nut seat 510, left-handed rope guiding wheel bracket 505, left-handed redirecting pulley block 506, left-handed rope guiding wheel bracket 507, first left-handed redirecting pulley block 508 and second left-handed redirecting pulley block 509;

the left-hand T-shaped lead screw rope guiding mechanism 500 is fixedly connected and arranged on the left side above the base assembly 200 and below a winding drum 8 of the left-hand driving winding drum mechanism along the axial direction of the large synchronous pulley 502; the side surfaces of the two screw rod bearing seats 501 with the same structural type are fixedly connected with the inner side surface of the frame plate 202 through fasteners; the left-hand T-shaped lead screw 503 is fixedly arranged on the central axis of the lead screw bearing seat 501 along the long side direction of the machine base assembly 200, the length of the left-hand T-shaped lead screw 503 is slightly longer than the distance between the two lead screw bearing seats 501, one end of the left-hand T-shaped lead screw is not exposed after being flush with the outer side surface of the lead screw bearing seat 501, and the other end of the left-hand T-shaped lead screw is exposed to the outer side surface of the lead screw bearing seat 501 after penetrating through the lead screw bearing seat 501 along the central axis.

The large synchronous pulley 502 is fixedly connected to one side end part of the left-hand T-shaped lead screw 503 exposed out of the side surface of the lead screw bearing seat 501; the left T-shaped nut seat 504 and the left T-shaped nut seat 510 with the same structure are connected to the left-handed T-shaped screw 503 through screw pairs, and the sliding grooves on the two side surfaces of the left T-shaped nut seat 504 and the left T-shaped nut seat 510 which are symmetrical with respect to the x axis are engaged with the upper sliding surface and the lower sliding surface of the guide rail 204 to play a role in preventing rotation, in particular, the C-shaped structural grooves on the two sides of the left T-shaped nut seat and the left T-shaped nut seat are matched with the guide rail arranged on the inner side of the frame plate to play a role in supporting, preventing rotation and guiding; the left first T-shaped nut seat and the left second T-shaped nut seat only do translational movement under the drive of a left-handed T-shaped lead screw, and the left-handed T-shaped lead screw only bears axial force and does not bear radial force; the left rope guiding wheel bracket 505 is fixedly connected to the upper surface of the left T-shaped nut seat 504, the large end of the left rope guiding wheel bracket 505 is positioned at the front side, and the small end is positioned at the rear side; the left redirecting pulley block 506 is fixedly connected to the upper surface of the front large end of the left rope guiding wheel bracket 505; the left two rope guiding wheel brackets 507 are fixedly connected to the upper surface of the left two T-shaped nut seats 510, the large ends of the left two rope guiding wheel brackets 507 are close to the rear side, and the small ends are close to the front side; the first left two redirecting pulley blocks 508 are fixedly connected to the upper surface of the rear large end of the left two rope guiding wheel brackets 507; the second left two redirecting pulley blocks 509 are fixedly connected to the lower surface of the rear large end of the left two rope guiding wheel brackets 507 and are positioned right below the first left one redirecting pulley blocks 508;

The tooth-shaped synchronous belt 13 of the left transmission reel mechanism is connected with the small synchronous pulley 7 of the left transmission reel mechanism and the left large synchronous pulley 502 of the left T-shaped lead screw rope guiding mechanism 500 through tooth-shaped engagement, and transmits the rotary motion of the reel driving shaft 10 of the left transmission reel mechanism to the left T-shaped lead screw 503;

the left first lifting rope 41 and the left second lifting rope 42 are connected and wound on the outer circumferential surface of the winding drum 8 of the left transmission winding drum mechanism.

As shown in fig. 3, the right-handed T-shaped lead screw guide mechanism 600 includes: the right side lead screw bearing seat 601, the right side large synchronous pulley 602, the right-hand T-shaped lead screw 603, the right-hand T-shaped nut seat 604, the right-hand T-shaped nut seat 610, the right-hand rope guiding wheel bracket 605, the right-hand redirecting pulley block 606, the right-hand rope guiding wheel bracket 607, the first right-hand redirecting pulley block 608 and the second right-hand redirecting pulley block 609;

the right-hand T-shaped lead screw rope guiding mechanism 600 is fixedly connected and arranged on the right side above the base assembly 200 along the axis direction of the right large synchronous pulley 602 and is positioned below a winding drum 8 of the right-hand transmission winding drum mechanism; the side surfaces of two screw shaft bearing seats 601 with the same structural type are fixedly connected with the inner side surface of the frame plate 202 through fasteners; the right-hand T-shaped screw 603 is fixedly arranged on the central axis of the screw bearing seat 601 along the long side direction of the machine base assembly 200 in a penetrating manner, the length of the right-hand T-shaped screw 603 is slightly longer than the distance between the two screw bearing seats 601, one end of the right-hand T-shaped screw 603 is flush with the outer side surface of the screw bearing seat 601 and is not exposed, and the other end of the right-hand T-shaped screw 603 penetrates through the screw bearing seat 601 along the central axis and is exposed to the outer side surface of the screw bearing seat 601.

The right large synchronous pulley 602 is fixedly connected to one side end part of the right-hand T-shaped screw 603 exposed out of the side surface of the screw bearing seat 601; the right T-shaped nut seat 604 and the right two T-shaped nut seats 610 with the same structure are connected to the right-hand T-shaped screw 603 through screw pairs, and the sliding grooves on the two side surfaces of the right T-shaped nut seat 604 and the right two T-shaped nut seats 610 which are symmetrical about the x axis are engaged with the upper sliding surface and the lower sliding surface of the guide rail 204 to play a role in preventing rotation, in particular, the C-shaped structure grooves on the two side surfaces of the right T-shaped nut seat and the right T-shaped nut seat are matched with the guide rail arranged on the inner side of the frame plate to play a role in supporting, preventing rotation and guiding; the right I and right II T-shaped nut seats only do translational motion under the drive of the right-hand T-shaped screw rod, and the right-hand T-shaped screw rod only bears axial force and does not bear radial force; the right rope guiding wheel bracket 605 is fixedly connected to the upper surface of the right T-shaped nut seat 604, the large end of the right rope guiding wheel bracket 605 is close to the front side, and the small end is close to the rear side; the right redirecting pulley block 606 is fixedly connected to the upper surface of the front large end of the right rope guiding pulley bracket 605; the right two rope guiding wheel brackets 607 are fixedly connected to the upper surfaces of the right two T-shaped nut seats 610, the large ends of the right two rope guiding wheel brackets 610 are close to the rear side, and the small ends are close to the front side; the first right redirecting pulley block 608 is fixedly connected to the upper surface of the rear large end of the right rope guiding wheel bracket 607; the second right redirecting pulley block 609 is fixedly connected to the lower surface of the rear large end of the right rope guiding wheel bracket 607 and is positioned right below the first right redirecting pulley block 608.

The toothed synchronous belt 13 of the right-side transmission reel mechanism is connected with the small synchronous pulley 7 of the right-side transmission reel mechanism and the right-side large synchronous pulley 602 of the right-hand T-shaped lead screw rope guiding mechanism 600 through toothed engagement, and transmits the rotary motion of the reel driving shaft 10 of the right-side transmission reel mechanism to the right-hand T-shaped lead screw 603;

the right one lifting rope 43 and the right two lifting ropes 44 are connected and wound on the outer circumferential surface of the winding drum 8 of the right side transmission winding drum mechanism.

In the crane, the left-hand T-shaped lead screw rope guiding mechanism 500 and the right-hand T-shaped lead screw rope guiding mechanism 600 are respectively arranged and fixed on the inner sides of the two frame plates 202 of the base assembly 200 and are respectively positioned under the left winding drum and the right winding drum; the guide rail on the inner side of the frame plate 202 plays a role in limiting the left T-shaped nut seat 504, the left two T-shaped nut seats 510, the right one T-shaped nut seat 604 and the right two T-shaped nut seats 610, and when the winding drum rotates, each T-shaped nut seat horizontally moves along the axis of the winding drum according to a certain proportion, so that each lifting rope can be uniformly distributed on the circumferential surface of the corresponding winding drum.

In the crane, the left-handed T-shaped lead screw rope guiding mechanism 500 and the right-handed T-shaped lead screw rope guiding mechanism 600 are arranged and fixed on two sides of the upper end of the structure, the center line positions of rope grooves of the first left redirecting pulley block 508 and the first right redirecting pulley block 608 behind the winding drum 8 are respectively basically overlapped with the center positions of lifting ropes wound on the outer circumferential surfaces of the winding drums on the left side and the right side, and the center lines of the left redirecting pulley block 506 and the right redirecting pulley block 606 in the front of the winding drum 8 in the direction of guiding lifting ropes are respectively overlapped with the center positions of the lifting ropes wound on the outer circumferential surfaces of the winding drums on the left side and the right side in a tangential and parallel mode.

When the output shaft of the servo gear motor as the driving device 12 is in a rotary motion working state, the rotary motion drives the reels 8 on the left and right sides and the small synchronous pulleys 7 to synchronously rotate through the shaft coupling 11 of the transmission chain and the reel driving shaft 10.

When the small synchronous pulley 7 of the left transmission drum mechanism of the crane rotates, the toothed synchronous belt 13 drives the left large synchronous pulley 502 to rotate in the same direction, so as to drive the left T-shaped lead screw 503 to rotate; the left T-shaped nut seat 604 and the left two T-shaped nut seats 610 with the same type do left-right translation motion along the axes of the left-hand T-shaped lead screw 503 driven by the rotary screw pair; a left first rope guiding wheel bracket 505 and a left second rope guiding wheel bracket 507 which are fixedly connected to the left T-shaped nut seat 504 are arranged to do left-right translational movement along the axis of the left-hand T-shaped screw rod 503; the left first rope guiding wheel bracket 505 and the left second rope guiding wheel bracket 507 which do left and right translational movement are fixedly connected with the left first redirecting pulley block 506, the first left second redirecting pulley block 508 and the second left second redirecting pulley block 509 which do left and right translational movement along the axis of the left-handed T-shaped screw 603;

in the rotational winding process of the left reel 8, the left first lifting rope 41 and the left second lifting rope 42 are uniformly distributed on the circumferential surface of the left reel 8 under the translational movement action of the left redirecting pulley block 506 and the first left redirecting pulley block 508.

When the small synchronous pulley 7 of the transmission drum mechanism on the right side of the crane rotates, the toothed synchronous belt 13 drives the large synchronous pulley 602 on the right side to rotate in the same direction, so as to drive the right-hand T-shaped lead screw 603 to rotate; the right one T-shaped nut seat 604 and the right two T-shaped nut seats 610 which are the same in type are driven by the right-handed T-shaped screw 603 to do left-right translational movement along the axis thereof and the direction of the translational movement of the right one T-shaped nut seat 604 and the right two T-shaped nut seats 610 is opposite to the direction of the translational movement of the right one T-shaped nut seat; a right first rope guiding wheel bracket 605 and a right second rope guiding wheel bracket 607 which are respectively and fixedly connected to the right first T-shaped nut seat 604 and the right second T-shaped nut seat 610 are also arranged to do left-right translation movement along the axis of the right-hand T-shaped screw 603; the right first rope guiding wheel bracket 605 and the right second rope guiding wheel bracket 607 which do left and right translational movement are fixedly connected with the right first redirecting pulley block 606, the first right second redirecting pulley block 608 and the second right second redirecting pulley block 609 which do left and right translational movement along the axis of the right-handed T-shaped screw 603;

the right one lifting rope 43 and the right two lifting ropes 44 are uniformly distributed on the circumferential surface of the right reel 8 in the translational movement of the right one redirecting pulley block 606 and the first right two redirecting pulley blocks 608 in the rotational winding process of the right reel 8;

The left lifting rope 41 which is wound out from the front of the winding drum 8 at the left side of the crane is redirected to the left horizontally along the length direction of the crane by a left redirecting pulley block 506 for one time, and then is redirected to the vertical downward by a left redirecting pulley block 3 for the second time;

the left two lifting ropes 42 which are wound out from the rear of the winding drum 8 at the left side of the crane are redirected to be vertically downward through the first left two redirecting pulley blocks 508, are redirected to be horizontally leftward along the length direction of the crane through the second left two redirecting pulley blocks 509, and are redirected to be vertically downward through the other redirecting pulley blocks 3 at the left side after being redirected for three times;

the right lifting rope 43 wound out from the front of the winding drum 8 on the right side of the crane is redirected to the right horizontally along the length direction of the crane by a right redirecting pulley block 606 for one time and then redirected to the right vertically downwards by a right redirecting pulley block 3 for the second time;

the right two lifting ropes 44 which are wound out from the rear of the winding drum 8 on the right side of the crane are redirected to be vertically downward through the first right two redirecting pulley blocks 608, are redirected to be horizontally rightward along the length direction of the crane through the second right two redirecting pulley blocks 609, and are redirected to be vertically downward through the other redirecting pulley blocks 3 on the right side after being redirected for three times;

The left lifting rope 41, the left lifting rope 42, the right lifting rope 43 and the right lifting rope 44 are changed to be vertical and downward extended after being changed for a plurality of times, so that four lifting points with rectangular projection surfaces are formed, and the four lifting points are connected with the cuboid prop 14 under the crane for hanging. The rectangular prop 14 moves up and down in the vertical direction along with the rotation of the reels 8 on the left and right sides of the crane in the rope winding and unwinding rhythm.

In summary, the double-reel four-rope-outlet performance crane provided by the embodiment of the utility model is suitable for being applied to projects with matrix performance, single-machine hanging of single prop load can obviously reduce the failure rate of the whole matrix product, and four independent lifting ropes configured by a single crane have great safety redundancy in terms of performance or quantity of single lifting ropes, so that the probability of safety accidents in the performance process is greatly reduced. Compared with the project of lifting and hanging a long-size prop performance by two cranes with small load capacity, the crane is stable in operation, the performance is effectively improved, the operation failure rate can be obviously reduced, and the equipment maintenance time is greatly reduced.

It can be known that the crane is not limited to the field of stage prop hoisting, and can be used for other occasions needing to hoist large-size objects by a single crane.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims. The information disclosed in the background section herein is only for enhancement of understanding of the general background of the utility model and is not to be taken as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.

Claims (10)

1. A crane, comprising:

the device comprises a machine base assembly body (200), mounting section steel (1), four groups of redirecting pulley blocks, a driving device (12), a left double rope outlet device, a right double rope outlet device, a left first lifting rope (41), a left second lifting rope (42), a right first lifting rope (43) and a right second lifting rope (44); wherein,

the base assembly body (200) is fixedly arranged on the mounting section steel (1);

the four groups of direction-changing pulley groups are arranged at four corners of two sides of the base assembly body (200);

The driving device (12) is fixedly arranged at the middle part of the base assembly body (200), the driving device (12) is provided with a left-side output shaft and a right-side output shaft which are opposite in direction, and the left-side output shaft and the right-side output shaft are respectively arranged along the length direction of the base assembly body (200);

the left double rope outlet device and the right double rope outlet device are respectively arranged on the left side and the right side of the driving device (12) and are fixedly arranged on the base assembly body (200);

the left-side rope outlet shaft of the driving device (12) is connected with the left-side double rope outlet device and can drive the left-side double rope outlet device to rotate;

the right-side rope outlet shaft of the driving device (12) is connected with the right-side double-rope outlet device and can drive the right-side double-rope outlet device to rotate;

one end of the left lifting rope (41) is connected with the left double-rope outlet device, the other end of the left lifting rope is used as a left lifting end of the prop, and the left lifting rope is extended to the lower part of the installation section steel (1) through a left redirecting pulley block;

one end of the left two lifting ropes (42) is connected with the left double-rope outlet device, the other end of the left two lifting ropes is used as a left two-lifting end of the prop, and the left two-lifting ends extend to the lower part of the installation section steel (1) through the other redirecting pulley block on the left side;

one end of the right lifting rope (43) is connected to the right double-rope outlet device, the other end of the right lifting rope is used as a right lifting end of the prop, and the right lifting rope is extended to the lower part of the installation section steel (1) through a redirecting pulley block on the right side;

One end of the right two lifting ropes (44) is connected to the right double-rope outlet device, the other end of the right two lifting ropes is used as a right two-lifting end of the prop, and the right two-lifting end of the right two-lifting rope is changed to extend to the lower portion of the installation section steel (1) through the other direction-changing pulley block on the right side.

2. The crane of claim 1, wherein the left double payout device comprises:

a left side transmission reel mechanism and a left-hand T-shaped lead screw rope guiding mechanism (500); wherein,

the left-hand transmission reel mechanism and the left-hand T-shaped lead screw rope guide mechanism (500) are fixedly arranged on the base assembly body (200) at the left side of the driving device (12), and the left-hand T-shaped lead screw rope guide mechanism (500) is positioned right below the left-hand transmission reel mechanism;

the left output shaft of the driving device (12) is connected with the left-hand T-shaped lead screw rope guide mechanism (500) through a left transmission reel mechanism, and can drive the left-hand T-shaped lead screw rope guide mechanism (500) to rotate;

one end of the left lifting rope (41) is connected with the left transmission reel mechanism, and the other end serving as a left lifting end of the prop is respectively extended to the lower part of the installation section steel (1) through the left-hand T-shaped lead screw rope guide mechanism (500) and a left redirecting pulley block;

one end of the left two lifting ropes (42) is connected to the left side transmission reel mechanism, and the other end serving as a left two lifting ends of the prop is respectively extended to the lower side of the installation section steel (1) after being changed from the left-hand T-shaped lead screw rope guiding mechanism (500) to the other left redirecting pulley block.

3. The crane of claim 2, wherein the left-hand T-lead screw rope guide (500) comprises:

the left-side large synchronous pulley comprises a lead screw bearing seat assembly (501), a left-side large synchronous pulley (502), a left-hand T-shaped lead screw (503), a left-hand T-shaped nut seat (504), a left-hand T-shaped nut seat (510), a left-hand rope guiding pulley bracket (505), a left-hand redirecting pulley block (506), a left-hand rope guiding pulley bracket (507), a first left-hand redirecting pulley block (508) and a second left-hand redirecting pulley block (509); wherein,

the screw rod bearing seat assembly (501) is fixedly connected with the machine base assembly body (200);

the left-hand T-shaped lead screw (503) is arranged on the lead screw bearing seat assembly (501) in a penetrating way, and one end of the left-hand T-shaped lead screw (503) is fixedly provided with the left large synchronous pulley (502);

the left first T-shaped nut seat (504) and the left second T-shaped nut seat (510) are connected to the left-handed T-shaped screw rod (503) through screw pairs, and anti-rotation sliding grooves which are engaged with the base assembly body (200) are formed in the side surfaces of the left first T-shaped nut seat (504) and the left second T-shaped nut seat (510);

the left guide rope wheel bracket (505) is fixedly arranged on the left T-shaped nut seat (504), and the left redirecting pulley block (506) is fixedly arranged at one end of the left guide rope wheel bracket (505);

The left two guide pulley brackets (507) are fixedly arranged on the left two T-shaped nut seats (510), the first left two redirecting pulley blocks (508) are fixedly arranged on the other ends of the left two guide pulley brackets (507) and are positioned on the opposite sides of the left two redirecting pulley blocks (506), and the second left two redirecting pulley blocks (509) are fixedly arranged below the other ends of the left two guide pulley brackets (507) and are positioned under the first left two redirecting pulley blocks (508).

4. A crane according to claim 3, characterized in that the sheave rope-out direction of the left-hand redirecting pulley block (506) is parallel to the axial direction of the left-hand T-shaped screw (503);

the pulley rope outlet direction of the second left two redirecting pulley blocks (509) is parallel to the axial direction of the left-handed T-shaped lead screw (503);

the pulley rope outlet direction of the first left redirecting pulley block (508) is perpendicular to the axial direction of the left-handed T-shaped screw (503).

5. The crane of any one of claims 2-4, wherein the left side drive spool mechanism comprises:

a small synchronous pulley (7), a reel driving shaft (10), a reel (8), a reel seat (9), a tooth-shaped synchronous belt (13) and a coupler (11); wherein,

one end of the coupler (11) is connected with one side output shaft of the driving device, and the other end of the coupler is connected with one end of the reel driving shaft (10);

The winding drum (8) is arranged on the machine base assembly body (200) through the winding drum seat (9), the winding drum (8) is fixedly arranged on the winding drum driving shaft (10) in a penetrating way, and the winding drum can rotate on the winding drum seat (9) under the driving of the winding drum driving shaft (10);

the other end of the reel driving shaft (10) is fixedly provided with the small synchronous pulley (7), and the small synchronous pulley (7) can be connected with a large synchronous pulley arranged below through the toothed synchronous belt (13).

6. The crane of any one of claims 1-4, wherein the right side double payout device comprises:

a right side transmission reel mechanism and a right-hand T-shaped lead screw rope guiding mechanism (600); wherein,

the right-side transmission reel mechanism and the right-hand T-shaped lead screw rope guide mechanism (600) are fixedly arranged on the base assembly body (200) on the right side of the driving device (12), and the right-hand T-shaped lead screw rope guide mechanism (600) is positioned right below the right-side transmission reel mechanism;

the right-side output shaft of the driving device (12) is connected with the right-hand T-shaped lead screw rope guide mechanism (600) through a right-hand transmission reel mechanism, and can drive the right-hand T-shaped lead screw rope guide mechanism (600) to rotate;

one end of the right lifting rope (43) is connected with the right transmission drum mechanism, the other end of the right lifting rope is used as a right lifting end of the prop, and the right lifting rope and the right redirecting pulley block extend to the lower side of the installation section steel (1) after being respectively changed by the right-handed T-shaped lead screw rope guide mechanism (600);

One end of the right two lifting ropes (44) is connected to the right side transmission reel mechanism, the other end of the right two lifting ropes is used as a right two lifting ends of the prop, and the right two lifting ropes and the other redirecting pulley block on the right side are respectively extended to the lower side of the installation section steel (1) after being changed by the right-handed T-shaped lead screw rope guiding mechanism (600).

7. The crane of claim 6, wherein the right-handed T-lead screw rope guide (600) comprises:

the right screw bearing seat assembly (601), a right large synchronous pulley (602), a right-hand T-shaped screw (603), a right-hand T-shaped nut seat (604), a right-hand T-shaped nut seat (610), a right-hand rope guiding wheel bracket (605), a right-hand redirecting pulley block (606), a right-hand rope guiding wheel bracket (607), a first right-hand redirecting pulley block (608) and a second right-hand redirecting pulley block (609); wherein,

the right lead screw bearing seat assembly (601) is fixedly connected with the base assembly body (200);

the right-hand T-shaped lead screw (603) is arranged on the right-side lead screw bearing seat assembly (601) in a penetrating mode, and one end of the right-hand T-shaped lead screw (603) is fixedly provided with the right-side large synchronous pulley (602);

the right T-shaped nut seat (604) and the right two T-shaped nut seats (610) are connected to the right-handed T-shaped screw (603) through screw pairs, and anti-rotation sliding grooves which are engaged with the base assembly body (200) are formed in the side surfaces of the right T-shaped nut seat (604) and the right two T-shaped nut seats (610);

The right rope guiding wheel bracket (605) is fixedly arranged on the right T-shaped nut seat (604), and the right redirecting pulley block (606) is fixedly arranged at one end of the right rope guiding wheel bracket (605);

the right two rope guiding wheel supports (607) are fixedly arranged on the right two T-shaped nut seats (610), the first right two redirecting pulley blocks (608) are fixedly arranged on the other ends of the right two rope guiding wheel supports (607) and are positioned on the opposite sides of the right one redirecting pulley blocks (606), and the second right two redirecting pulley blocks (609) are fixedly arranged below the other ends of the right two rope guiding wheel supports (607) and are positioned under the first right two redirecting pulley blocks (608).

8. The crane according to claim 7, characterized in that the pulley payout direction of the right redirecting pulley block (606) is parallel to the axial direction of the right turning T-screw (603);

the rope outlet direction of the pulley of the second right two redirecting pulley blocks (609) is parallel to the axial direction of the right-handed T-shaped screw (603);

the rope outlet direction of the pulley of the first right redirecting pulley block (608) is perpendicular to the axial direction of the right-handed T-shaped screw (603).

9. The crane according to any one of claims 1-4, wherein the frame assembly (200) comprises: the device comprises a unit connecting frame (201), two frame plates (202), a speed reducer base plate (203) and four guide rails (204); wherein,

The bottom surface of the unit connecting frame (201) is fixedly connected with the upper surface of the installation section steel (1) through a fastener, and two frame plates (202) which are vertically and fixedly installed at the front and the rear are arranged at the upper part of the middle of the unit connecting frame (201);

the middle upper plane of the two frame plates (202) is fixedly provided with a speed reducer base plate (203), and the width of the speed reducer base plate (203) is larger than that of the two frame plates (202);

four guide rails (204) with the same structure are arranged in the x-axis direction and the y-axis direction in a pairwise opposite manner and fixedly connected to the positions of the inner sides, close to the left end and the right end, of the two frame plates (202);

the mounting section steel (1) adopts C-shaped curled edge mounting section steel.

10. The crane according to claim 9, wherein the driving device (12) employs a servo gear motor fixedly arranged at an intermediate position above a speed reducer base plate (203) of the machine base assembly (200).