CN215249106U - Special lifting appliance for thin-wall cylindrical component - Google Patents

Abstract

The utility model relates to a special lifting device of thin wall cylinder component, including screw rod, driving piece, setting element, linkage, connecting rod, guide rail, slider and hanging tong. The screw rod is vertically arranged, and the driving piece drives the screw rod to rotate. The screw rod is sleeved with the linkage piece and the positioning piece in sequence from top to bottom, and the positioning piece is in threaded connection with the screw rod. When the screw rod rotates, the positioning piece is driven to move upwards or downwards, and the positioning piece drives the linkage piece to synchronously move upwards or downwards under the self-weight of the linkage piece. The number of the guide rails is not less than two, and the number of the sliding blocks, the connecting rods and the hanging tongs is consistent with that of the guide rails. The guide rails are horizontally arranged, and the guide rails are uniformly arranged at intervals along the circumferential direction of the screw rod. Each guide rail is provided with a sliding block in a sliding way, each sliding block is fixedly connected with a hanging tong, and the lower part of the sliding block of the hanging tong is positioned. One end of the connecting rod, which is close to the screw rod, is rotationally connected with the linkage piece, and one end of the connecting rod, which is far away from the screw rod, is rotationally connected with the sliding block. Its beneficial effect is, adopt the utility model discloses when hoist and mount thin wall cylinder component, enable the circularity of thin wall cylinder component invariable, to its clamping in the next station of being convenient for.

Description

Special lifting appliance for thin-wall cylindrical component

Technical Field

The utility model relates to a hoist technical field especially relates to a special lifting device of thin wall cylinder component.

Background

During the processing of the thin-wall cylindrical component, the thin-wall cylindrical component needs to be lifted to the next station for clamping. At present, a lifting appliance for lifting a thin-wall cylindrical component is generally a lifting belt with two ends respectively provided with a reverse clamping type lifting clamp. In the hoisting process, the roundness of the thin-wall cylindrical component needs to be kept constant in order to facilitate the clamping of the next station. Wherein the thin-walled cylindrical member has a wall thickness of 0.1 to 5 mm.

In order to keep the roundness of the thin-wall cylindrical member constant, the axial line of the thin-wall cylindrical member is required to be coincident with the vertical central line of the hanging strip in the hoisting process, and the distance between the oppositely arranged anti-clamping type hanging tongs is required to be constant, so that the circumferential side wall of the thin-wall cylindrical member is uniformly stressed, and the phenomenon that the circumferential side wall of the thin-wall cylindrical member is deformed after being extruded by the anti-clamping type hanging tongs to reduce the roundness due to lower rigidity of the thin-wall cylindrical member when the circumferential side wall of the thin-wall cylindrical member is stressed more or unevenly is avoided.

When the lifting device is used, the oppositely arranged reverse clamping type hanging tongs are clamped on the circumferential side wall of the thin-wall cylindrical member, and then the thin-wall cylindrical member is lifted by the center of the lifting belt. Because the hanging strip is made of flexible materials, the central point of the hanging strip is difficult to determine during lifting, the oppositely arranged reversely-clamped hanging tongs are difficult to ensure to be positioned on the same horizontal line, and the axis of the thin-wall cylindrical component can be coincided with the vertical central line of the hanging strip by multiple adjustments, so that the lifting efficiency is low. Meanwhile, as the hanging strip is made of flexible materials, the hanging strip can deform in the process of lifting the thin-wall cylindrical member to a certain height and conveying the thin-wall cylindrical member to the next station, so that the distance between oppositely arranged reversely-clamping type hanging tongs is reduced or the oppositely arranged reversely-clamping type hanging tongs are inclined relatively, the stress on the circumferential side wall of the thin-wall cylindrical member is increased or uneven, and the roundness of the thin-wall cylindrical member is reduced.

In summary, for a thin-walled cylindrical member, the existing lifting appliance with the hanging strip provided with the reversely-clamping type hanging tongs at each of the two ends cannot keep the axis of the thin-walled cylindrical member coincident with the vertical center line of the hanging strip all the time and the distance between the oppositely-arranged reversely-clamping type hanging tongs constant in the lifting process, so that the roundness of the thin-walled cylindrical member cannot be kept constant, the subsequent station is inconvenient to clamp, the thin-walled cylindrical member needs to be adjusted for many times, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above-mentioned shortcoming, not enough of prior art, the utility model provides a special lifting device of thin wall cylinder component, it has been solved to the thin wall cylinder component, current both ends are equipped with the hoist of the suspender of an anti-formula tong respectively, the axis that can't keep the thin wall cylinder component in the lift by crane process is invariable with the interval of the anti-formula tong of the vertical central line coincidence of suspender and relative setting all the time, the circularity that leads to the thin wall cylinder component can't keep invariable, the clamping of follow-up station of being not convenient for, and it needs adjustment many times, the lower technical problem of efficiency.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

the embodiment of the utility model provides a special lifting appliance for thin-wall cylindrical components, which comprises a screw rod, a driving piece, a positioning piece, a linkage piece, a connecting rod, a guide rail, a slide block and a lifting clamp;

the screw rod is vertically arranged, and the driving piece is used for driving the screw rod to rotate around the axis of the screw rod;

the linkage piece and the positioning piece are sequentially sleeved on the screw rod from top to bottom, and the positioning piece is in threaded connection with the screw rod;

when the screw rod rotates, the positioning piece is driven to move upwards or downwards, and the positioning piece drives the linkage piece to synchronously move upwards or synchronously move downwards due to the self weight of the linkage piece;

the number of the guide rails is not less than two, and the number of the slide blocks, the connecting rods and the hanging tongs is consistent with that of the guide rails;

the guide rails are horizontally arranged, and a plurality of guide rails are uniformly arranged at intervals along the circumferential direction of the screw;

each guide rail is provided with one sliding block in a sliding mode, each sliding block is fixedly connected with one hanging tong through a first connecting piece, and the hanging tong is located below the sliding block;

one end of the connecting rod, which is close to the screw rod, is rotationally connected with the linkage piece, and one end of the connecting rod, which is far away from the screw rod, is rotationally connected with the sliding block.

According to the utility model discloses, the tong is for locking-type tong.

According to the utility model, the utility model also comprises a fixed frame, and the guide rail, the screw rod and the driving piece are all fixed on the fixed frame;

the fixed frame comprises a lifting appliance frame and a rack, and the lifting appliance frame is fixedly connected with the rack.

According to the utility model, the hanger frame is horizontally arranged and positioned below the guide rail, and the guide rail is fixed on the hanger frame;

scales are arranged on the hanger frame along the extending direction of the guide rail, and pointers corresponding to the scales are arranged on the sliding blocks.

According to the utility model, the hanger frame is provided with an accommodating through hole for accommodating the lower part of the screw rod, and the bottom end of the screw rod is rotationally connected with the hanger frame through a bearing;

and a bearing cover is arranged below the lifting appliance frame and used for sealing the accommodating through hole.

According to the utility model discloses, the vertical setting of frame, the bottom mounting of frame is in on the hoist frame, the top of frame with driving piece fixed connection makes the driving piece is located the top of screw rod.

According to the utility model discloses, the frame with be equipped with the protection casing between the driving piece, the protection casing is used for sealing the frame with clearance between the driving piece.

According to the utility model discloses, the drive shaft of driving piece with the input shaft of speed reducer, the output shaft of speed reducer pass through the shaft coupling with the top of screw rod is connected.

According to the utility model discloses, the guide rail is kept away from the one end of screw rod is equipped with limit baffle.

According to the utility model, the first connecting piece comprises a first horizontal plate and two first vertical plates;

the first horizontal plate is horizontally arranged, and the two first vertical plates are symmetrically arranged on two sides of the first horizontal plate;

the space formed by the first horizontal plate and the two first vertical plates is used for accommodating the sliding block and the upper part of the hanging tong;

the first horizontal plate and the first vertical plate are both provided with through holes, the sliding block is in threaded connection with the first horizontal plate through the through hole formed in the first horizontal plate, and the hanging tongs are in threaded connection with the first vertical plate through the through hole formed in the first vertical plate.

(III) advantageous effects

The utility model provides a special lifting device of thin wall cylinder component, it has following beneficial effect:

first, the utility model discloses a horizontal interval between tong and the screw rod is adjusted to driving piece drive screw pivoted mode, this regulative mode convenient and fast. Through the horizontal interval adjustment between tong and the screw rod to with treat that the radius of the thin wall cylinder component of clamping is unanimous, make the utility model discloses can be applicable to the hoist and mount of the thin wall cylinder component of different diameters, improved the utility model discloses a practicality.

Second, the utility model discloses a mode that the setting element drives linkage piece and makes progress in step or by the synchronous downstream of the dead weight of linkage piece when the setting element moves down for the screw rod when stall, the setting element can drive linkage piece and keep at the current position, and the horizontal interval who takes place to remove and then lead to between tong and the screw rod when avoiding linkage piece to receive the exogenic action changes. Among them, when the distance is increased, the thin-walled cylindrical member is easily detached from the tongs. When the distance is reduced, the circumferential side wall of the thin-wall cylindrical member is easily stressed to be increased and deformed, so that the roundness of the thin-wall cylindrical member is reduced. Therefore, the utility model discloses can guarantee that the horizontal interval between tong and the screw rod is invariable to the atress of the circumference lateral wall that makes thin wall cylinder component is invariable, and then makes its circularity invariable.

Third, the utility model discloses a with the vertical setting of screw rod, a plurality of guide rail level sets up and sets up along the even interval of circumference of screw rod, it sets up a slider to slide on each guide rail, hanging tongs of each slider fixed connection, and drive the setting mode that a plurality of hanging tongs removed to the direction that is close to or keeps away from the screw rod in step by the linkage, make the horizontal interval of a plurality of hanging tongs and screw rod remain unanimous all the time, in order when on the circumference lateral wall of hanging tongs clamping thin wall cylinder component, the axis that does not need many times adjustment can realize the thin wall cylinder component coincides with the screw rod of vertical setting all the time, clamping efficiency has been improved. Therefore, the utility model discloses can swiftly the efficient realize the axis of wall cylinder component all the time with the screw rod coincidence of vertical setting to the atress that makes the circumference lateral wall of thin wall cylinder component is even and invariable, and then makes its circularity invariable.

Fourth, because the utility model discloses a screw rod and guide rail are the rigidity material, lifting by crane the thin wall cylinder component to the take the altitude and hang the in-process that delivers to next station, screw rod and guide rail all can not take place to deform, the slider that slides and sets up on the guide rail can not take place the ascending removal of upper and lower side or control the ascending rocking of side yet, make the horizontal interval that the tong that a plurality of was fixed on the slider lies in between same vertical height and tong and the screw rod all the time keep invariable, so that the atress of the circumference lateral wall of thin wall cylinder component is even and invariable, avoid the uneven deformation of its circumference lateral wall atress, the circularity of having guaranteed thin wall cylinder component is invariable.

Like above-mentioned second point to fourth point, adopt the utility model discloses when hoist thin wall cylinder component, can guarantee that the axis of thin wall cylinder component is invariable with the screw rod coincidence of vertical setting and the horizontal interval between tong and the screw rod all the time, and then make the circularity of thin wall cylinder component keep invariable to the clamping to thin wall cylinder component in the next station.

Drawings

Fig. 1 is a front view of an embodiment of a special spreader for thin-walled cylindrical members according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of the first connector of FIG. 1;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a front view of the second connector of FIG. 1;

FIG. 7 is a left side view of FIG. 6;

fig. 8 is a top view of fig. 6.

[ description of reference ]

11: a first frame; 111: an accommodating through-hole; 112: a bearing cap; 12: a second frame; 121: a protective cover;

2: a screw; 21: a positioning member; 22: a linkage member; 23: a bearing;

3: a guide rail; 31: a limit baffle;

4: a drive member; 41: a speed reducer;

5: a slider;

6: hanging tongs;

7: a connecting rod;

81: a first connecting member; 811: a first horizontal plate; 812: a first vertical plate;

82: a second connecting member; 821: a second horizontal plate; 822: a second vertical plate;

9: a lifting ring.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. As used herein, the terms "upper", "lower", and the like are used with reference to the orientation of FIG. 1.

The embodiment of the utility model provides a special lifting device of thin wall cylinder component, in the course of working of thin wall cylinder component, special lifting device is used for lifting thin wall cylinder component to next station.

The special lifting appliance comprises a screw rod 2, a driving piece 4, a positioning piece 21, a linkage piece 22, a guide rail 3, a sliding block 5, a lifting clamp 6, a connecting rod 7 and a fixing frame. The number of the guide rails 3 is not less than two. The number of the slide blocks 5, the connecting rods 7 and the hanging tongs 6 is the same as that of the guide rails 3.

Wherein, screw rod 2 vertical setting, the even interval setting in the circumference of a plurality of guide rail 3 level setting and following screw rod 2. The guide rail 3, the screw rod 2 and the driving piece 4 are all fixed on the fixed frame. The driving member 4 is used for driving the screw rod 2 to rotate around the axis of the screw rod 2. The screw rod 2 is sequentially sleeved with the linkage part 22 and the positioning part 21 from top to bottom, the positioning part 21 is in threaded connection with the screw rod 2, the screw rod 2 can drive the positioning part 21 to move upwards or downwards when rotating, and then the positioning part 21 drives the linkage part 22 to move upwards synchronously or move downwards synchronously due to the dead weight of the linkage part 22. Each guide rail 3 is provided with a sliding block 5 in a sliding way, each sliding block 5 is fixedly connected with a hanging clamp 6, the hanging clamp 6 is positioned below the sliding block 5, and the hanging clamp 6 is used for clamping a thin-wall cylindrical component. One end of the connecting rod 7 close to the screw rod 2 is rotationally connected with the linkage piece 22, and one end of the connecting rod 7 far away from the screw rod 2 is rotationally connected with the sliding block 5.

The utility model discloses a theory of operation does:

the driving piece 4 drives the screw rod 2 to rotate around the axis of the screw rod 2, the screw rod 2 drives the positioning piece 21 to move upwards or downwards, and the positioning piece 21 drives the linkage piece 22 to synchronously move upwards or synchronously move downwards due to the self weight of the linkage piece 22. When the linkage piece 22 moves upwards, the end, close to the screw rod 2, of the connecting rod 7 is driven to move upwards, the end, far away from the screw rod 2, of the connecting rod 7 drives the sliding block 5 to slide along the guide rail 3 in the direction close to the screw rod 2, and the hanging clamp 6 moves along with the sliding block 5 in the direction close to the screw rod 2, so that the horizontal distance between the hanging clamp 6 and the screw rod 2 is reduced. When the linkage piece 22 moves downwards, the end, close to the screw rod 2, of the connecting rod 7 is driven to move downwards, the end, far away from the screw rod 2, of the connecting rod 7 drives the sliding block 5 to slide along the guide rail 3 in the direction far away from the screw rod 2, and the hanging clamp 6 moves along with the sliding block 5 in the direction far away from the screw rod 2, so that the horizontal distance between the hanging clamp 6 and the screw rod 2 is increased. When the horizontal distance between the hanging tongs 6 and the screw rod 2 is adjusted to be consistent with the radius of the thin-wall cylindrical component to be clamped, the hanging tongs 6 are clamped on the circumferential side wall of the thin-wall cylindrical component.

Through the setting and theory of operation, the utility model has the advantages of as follows:

first, the utility model discloses a 4 driving screw 2 pivoted modes of driving piece adjust the horizontal interval between tong 6 and the screw rod 2, this regulative mode convenient and fast. Through the horizontal interval adjustment with between tong 6 and the screw rod 2 to with treat that the radius of the thin wall cylinder component of clamping is unanimous, make the utility model discloses can be applicable to the hoist and mount of the thin wall cylinder component of different diameters, improved the utility model discloses a practicality.

Second, the utility model discloses a mode that setting element 21 drives linkage 22 synchronous upward movement or is moved down by linkage 22's dead weight when setting element 21 moves down for screw rod 2 is when stall, and setting element 21 can drive linkage 22 and keep at the current position, and the horizontal interval that takes place to remove and then lead to between tong 6 and the screw rod 2 when avoiding linkage 22 to receive the exogenic action changes. Wherein, when the distance is increased, the thin-wall cylindrical member is easily separated from the hanging tongs 6. When the distance is reduced, the circumferential side wall of the thin-wall cylindrical member is easily stressed to be increased and deformed, so that the roundness of the thin-wall cylindrical member is reduced. Therefore, the utility model discloses can guarantee that the horizontal interval between tong 6 and the screw rod 2 is invariable to the atress of the circumference lateral wall that makes thin wall cylinder component is invariable, and then makes its circularity invariable.

Third, the utility model discloses a with the vertical setting of screw rod 2, 3 levels of a plurality of guide rail set up and set up along the even interval of circumference of screw rod 2, it sets up a slider 5 to slide on each guide rail 3, hanging tong 6 of 5 fixed connection of each slider, and drive the setting mode that a plurality of hanging tong 6 removed to the direction that is close to or keeps away from screw rod 2 in step by linkage 22, make the horizontal interval of a plurality of hanging tong 6 and screw rod 2 remain unanimous all the time, in order when on the circumference lateral wall of hanging tong 6 clamping thin wall cylinder components, do not need many times to adjust the axis that can realize the thin wall cylinder components all the time with the screw rod 2 coincidence of vertical setting, clamping efficiency has been improved. Therefore, the utility model discloses can swiftly the efficient realize the axis of wall cylinder component all the time with the screw rod 2 coincidence of vertical setting to the atress that makes the circumference lateral wall of thin wall cylinder component is even and invariable, and then makes its circularity invariable.

Fourth, because the utility model discloses a screw rod 2 and guide rail 3 are the rigidity material, lifting by crane the thin wall cylinder component to the take the altitude and hang the in-process that delivers to next station, screw rod 2 and guide rail 3 all can not take place deformation, the slider 5 that slides and sets up on guide rail 3 can not take place the ascending removal of upper and lower side or control ascending rocking of side yet, make the horizontal interval that the hanging tong 6 that a plurality of fixed on slider 5 is located same vertical height and hanging tong 6 and screw rod 2 all the time keep invariable, so that the atress of the circumference lateral wall of thin wall cylinder component is even and invariable, avoid its circumference lateral wall atress uneven emergence to warp, the circularity of having guaranteed thin wall cylinder component is invariable.

Like this second point to fourth point, adopt the utility model discloses when hoisting thin wall cylinder component, can guarantee that the axis of thin wall cylinder component is invariable with the screw rod 2 coincidence of vertical setting and the horizontal interval between tong 6 and the screw rod 2 all the time, and then make the circularity of thin wall cylinder component keep invariable to the clamping to thin wall cylinder component in the next station.

Further, the end of the guide rail 3, which is far away from the screw rod 2, is provided with a limit baffle 31, and the limit baffle 31 is used for limiting the movable range of the sliding block 5, so that the sliding block 5 is prevented from derailing.

Preferably, in order to improve the connection stability of the sliding block 5 and the hanging tong 6, the sliding block 5 and the hanging tong 6 are fixedly connected through the first connecting piece 81. The first connector 81 includes a first horizontal plate 811 and two first vertical plates 812. The first horizontal plate 811 is horizontally disposed, and the two first vertical plates 812 are symmetrically disposed at both sides of the first horizontal plate 811. The space formed by the first horizontal plate 811 and the two first vertical plates 812 is used to accommodate the upper parts of the slider 5 and the tong 6. Through holes are formed in the first horizontal plate 811 and the first vertical plate 812, the slider 5 is in threaded connection with the first horizontal plate 811 through the through hole formed in the first horizontal plate 811, and the hanging tongs 6 is in threaded connection with the first vertical plate 812 through the through hole formed in the first vertical plate 812.

Preferably, in order to improve the connection stability of the slider 5 and the link 7, the slider 5 and the link 7 are connected by the second connecting member 82. Second connector 82 includes a second horizontal plate 821 and two second vertical plates 822. The second horizontal plate 821 is horizontally disposed, and two second vertical plates 822 are symmetrically disposed on the top of the second horizontal plate 821. The space formed by the second horizontal plate 821 and the two second vertical plates 822 is used for accommodating the connecting rod 7. Through holes are formed in the second horizontal plate 821 and the second vertical plate 822, the connecting rod 7 is rotatably connected to the second vertical plate 822 through the through hole formed in the second vertical plate 822, and the slider 5 is connected to the second horizontal plate 821 through the through hole formed in the second horizontal plate 821 in a threaded mode.

It should be noted that, the fixed connection between the slider 5 and the hanging tong 6 through the first connecting part 81 and the connection between the slider 5 and the connecting rod 7 through the second connecting part 82 are both described as examples, and other ways of achieving the stable connection between the slider 5 and the hanging tong 6 and between the slider 5 and the connecting rod 7 are also possible.

Preferably, the hanging tong 6 is a self-locking hanging tong to ensure that the hanging tong 6 can stably clamp the thin-wall cylindrical member in the hoisting process of the thin-wall cylindrical member, and the thin-wall cylindrical member is prevented from being separated from the hanging tong 6.

For improving the stability of the clamping of tong 6 to the thin-walled cylindrical component, the utility model discloses preferred four tongs 6 that set up to make four tongs 6 stabilize the centre gripping in the circumference lateral wall of thin-walled cylindrical component. It should be noted that the number of the guide rails 3 can be determined according to the actual required clamping force, so as to ensure that the hanging tongs 6 can stably clamp the thin-walled cylindrical member.

Preferably, for the stable hoist and mount of assurance to thin wall cylinder component, the utility model discloses the adjustable range of horizontal interval between well tong 6 and screw rod 2 is 200-. It should be noted that the above adjustable range is only an example, and can be specifically determined according to the size of the special lifting appliance, the clamping strength, and the weight of the thin-walled cylindrical member.

Further, the fixing frame includes a first frame 11 and a second frame 12, which are fixedly connected.

Wherein, first frame 11 sets up and is located the below of guide rail 3 horizontally, and guide rail 3 is fixed on first frame 11.

The first frame 11 is provided with an accommodating through hole 111 for accommodating a lower portion of the screw 2. The bottom of screw rod 2 is passed through bearing 23 and is rotated with first frame 11 and be connected to avoid screw rod 2 to take place to rock in rotation in-process lower part, and then improve the stability of hoist and mount process. A bearing cover 112 is arranged below the first frame 11, and the bearing cover 112 is used for closing the accommodating through hole 111 so as to prevent external dust or impurities from entering the bearing 23 at the bottom end of the screw rod 2 and then influencing the rotation of the screw rod 2.

Preferably, the first frame 11 is provided with scales along the extending direction of the guide rail 3, and the slider 5 is correspondingly provided with a pointer. When the slide block 5 slides along the guide rail 3 to adjust the horizontal distance between the hanging tong 6 and the screw rod 2, the scale indicated by the pointer can read the distance value in real time without measurement.

Further, the second housing 12 is vertically disposed. The bottom end of the second frame 12 is fixed on the first frame 11, and the top end of the second frame 12 is fixedly connected with the driving member 4, so that the driving member 4 is positioned above the screw rod 2. A protective cover 121 is arranged between the second frame 12 and the driving member 4 to seal a gap between the second frame 12 and the driving member 4, so as to prevent external dust or impurities from entering the driving member 4 to affect the normal operation thereof.

Further, the driving shaft of the driving member 4 is connected with the input shaft of the speed reducer 41, the output shaft of the speed reducer 41 is connected with the top end of the screw 2 through a coupling, and the driving member 4 drives the screw 2 to rotate around the axis through the driving shaft.

Preferably, in order to adjust the horizontal distance between the hanging tong 6 and the screw rod 2, an infrared control module can be further arranged on the driving part 4, and the infrared control module is electrically connected with the remote controller and the driving part 4 respectively. Referring to the view direction of fig. 2, when the remote controller sends a control signal to the infrared control module, the infrared control module receives the signal and controls the driving shaft of the driving member 4 to switch to clockwise rotation, counterclockwise rotation and stop rotation states, and the driving shaft drives the screw 2 to rotate clockwise, counterclockwise and stop rotation correspondingly, so that the horizontal distance between the hanging tongs 6 and the screw 2 is increased, decreased and kept constant, or the horizontal distance between the hanging tongs 6 and the screw 2 is decreased, increased and kept constant. It should be noted that the above-mentioned arrangement of the infrared control module is only an example, and other arrangements can be implemented to control the driving shaft of the driving member 4 to switch to the clockwise rotation state, the counterclockwise rotation state and the rotation stop state.

Alternatively, the drive 4 is a dc motor.

Further, the top of driving piece 4 is equipped with rings 9, and rings 9 are located the axis of screw rod 2, and rings 9 hoist and mount are being used for the drive the utility model discloses do elevating movement and horizontal migration on the device.

It should be noted that the utility model discloses still be applicable to the hoist and mount of other cylindrical members.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A special lifting appliance for thin-wall cylindrical components is characterized by comprising a screw (2), a driving piece (4), a positioning piece (21), a linkage piece (22), a connecting rod (7), a guide rail (3), a sliding block (5) and a lifting clamp (6);

the screw rod (2) is vertically arranged, and the driving piece (4) is used for driving the screw rod (2) to rotate around the axis of the screw rod;

the linkage piece (22) and the positioning piece (21) are sequentially sleeved on the screw rod (2) from top to bottom, and the positioning piece (21) is in threaded connection with the screw rod (2);

when the screw rod (2) rotates, the positioning piece (21) is driven to move upwards or downwards, and the linkage piece (22) is driven by the positioning piece (21) to synchronously move upwards or synchronously move downwards by the self weight of the linkage piece (22);

the number of the guide rails (3) is not less than two, and the number of the slide blocks (5), the connecting rods (7) and the hanging tongs (6) is consistent with that of the guide rails (3);

the guide rails (3) are horizontally arranged, and a plurality of guide rails (3) are uniformly arranged at intervals along the circumferential direction of the screw rod (2);

each guide rail (3) is provided with one sliding block (5) in a sliding manner, each sliding block (5) is fixedly connected with one hanging clamp (6) through a first connecting piece (81), and each hanging clamp (6) is positioned below the corresponding sliding block (5);

one end, close to the screw rod (2), of the connecting rod (7) is rotatably connected with the linkage piece (22), and one end, far away from the screw rod (2), of the connecting rod (7) is rotatably connected with the sliding block (5).

2. A spreader for thin-walled cylindrical components according to claim 1, wherein the tongs (6) are self-locking tongs.

3. A spreader for thin-walled cylindrical members according to claim 1, further comprising a mounting frame to which the guide rail (3), the threaded rod (2) and the driving member (4) are fixed;

the fixing frame comprises a first rack (11) and a second rack (12), and the first rack (11) is fixedly connected with the second rack (12).

4. A spreader for thin-walled cylindrical members according to claim 3, wherein the first frame (11) is arranged horizontally and below the guide rail (3), the guide rail (3) being fixed to the first frame (11);

scales are arranged on the first rack (11) along the extending direction of the guide rail (3), and pointers corresponding to the scales are arranged on the sliding block (5).

5. The special sling for thin-walled cylindrical members according to claim 4, wherein the first frame (11) is provided with a receiving through hole (111) for receiving the lower portion of the threaded rod (2), and the bottom end of the threaded rod (2) is rotatably connected to the first frame (11) through a bearing (23);

and a bearing cover (112) is arranged below the first frame (11), and the bearing cover (112) is used for closing the accommodating through hole (111).

6. A spreader for thin-walled cylindrical members as claimed in claim 4, wherein the second frame (12) is arranged vertically, the bottom end of the second frame (12) is fixed to the first frame (11), and the top end of the second frame (12) is fixedly connected to the driving member (4) such that the driving member (4) is located above the threaded rod (2).

7. A spreader arrangement for thin-walled cylindrical members as claimed in claim 6, wherein a shield (121) is arranged between the second frame (12) and the drive member (4), said shield (121) being arranged to seal the gap between the second frame (12) and the drive member (4).

8. A spreader for thin-walled cylindrical members as claimed in claim 6, wherein the driving shaft of the driving member (4) is connected to the input shaft of a speed reducer (41), and the output shaft of the speed reducer (41) is connected to the top end of the screw (2) by a coupling.

9. A spreader for thin-walled cylindrical components according to claim 1, wherein the end of the guide rail (3) remote from the threaded rod (2) is provided with a limit stop (31).

10. A spreader special for thin-walled cylindrical members according to claim 1, wherein the first connection member (81) comprises a first horizontal plate (811) and two first vertical plates (812);

the first horizontal plate (811) is horizontally arranged, and the two first vertical plates (812) are symmetrically arranged at two sides of the first horizontal plate (811);

the space formed by the first horizontal plate (811) and the two first vertical plates (812) is used for accommodating the slide block (5) and the upper part of the hanging tong (6);

the first horizontal plate (811) and the first vertical plate (812) are both provided with through holes, the sliding block (5) is in threaded connection with the first horizontal plate (811) through the through hole formed in the first horizontal plate (811), and the hanging clamp (6) is in threaded connection with the first vertical plate (812) through the through hole formed in the first vertical plate (812).

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