Hoisting device for carrying copper pipe trays

Abstract

The utility model discloses a hoisting device for carrying copper pipe trays, which is characterized in that the hoisting device comprises a support frame, an electric hoist is arranged on a cross beam of the support frame, a hoisting jig is connected onto the electric hoist, the hoisting jig comprises a base plate, a connecting column is arranged at the center of the base plate, and the connecting column is connected with the support frame. A lifting ring is arranged at the top end of the connecting column, the connecting column is movably sleeved with a driving sleeve, the lifting jig is provided with three limiting mechanisms evenly distributed in the circumferential direction, each limiting mechanism comprises a first swing rod, a lifting limiting block and a second swing rod, and the first swing rods and the second swing rods are hinged to the lifting limiting blocks. The other end of the first swing rod is rotationally connected with the bottom end of the driving sleeve through a rotating shaft, the other end of the second swing rod is rotationally connected with a fixing sleeve arranged at the bottom of the connecting column through a rotating shaft, and the fixing sleeve is fixedly connected to the base plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the transfer field of large -scale work piece especially a hoist device for carrying copper pipe material disc. BACKGROUND

[0002] In industrial production activities, often need to carry some material disc that is wound with flexible linear work piece, the traditional mode is to use the inner support type clamp set in the hoist execution end to operate, send the inner support type clamp into the center hole of the material disc, operate the clamp action, three clamping blocks on the clamp move outward, top in the inner wall of the material disc center hole, realize hoisting by the friction between them;

[0003] But for some special material disc (such as copper pipe material disc), the diameter of the via hole set on the top plate is far less than the diameter of the cylinder for supporting in the material disc, which leads to the traditional inner support type clamp to be unable to enter the inside of the supporting cylinder at all, unable to complete the hoisting operation of this kind of material disc.

[0004] Chinese patent CN212639699U discloses a machining workshop hoisting jig, the hoisting jig is provided with multiple sets of support rods capable of changing form, when the support rods are folded, the jig can be placed in a relatively narrow space, and after the jig is in place, the support rods are opened to support the hoisted work piece from inside; but the support rods in the scheme are in an inclined state in the supporting state, at this time, the support rods and the hoisted work piece are in line contact or even point contact, and great stress concentration will occur at the contact part, that is, the lifting weight of the hoisting jig depends entirely on the strength of the support rods, to lift heavier work pieces, support rods made of higher strength and rigidity materials need to be selected, which increases the overall cost and also has certain safety hazards.

[0005] Therefore, a method or device is needed to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model discloses in order to solve the above insufficient of prior art, propose a kind of hoisting device with simple structure, ingenious design, layout is reasonable, can realize the fast, stable connection of some special structure material disc (copper pipe material disc) To realize hoisting.

[0007] The technical solution of the utility model is: a kind of hoisting device for carrying copper pipe material disc, it is characterized in that: the hoisting device includes support frame 1, support frame 1's crossbeam is provided with electric hoist 2, electric hoist 2 is connected with hoisting jig 3;

[0008] The lifting tool 3 comprises a base plate 4, a connecting column 5 arranged at the center of the base plate 4, a lifting ring 6 arranged at the top end of the connecting column 5, a driving sleeve 7 movably sleeved on the connecting column 5, and three limiting mechanisms uniformly distributed in the circumferential direction and arranged on the lifting tool 3;

[0009] The limiting mechanism comprises a first swing rod 10, a lifting limiting block 11 and a second swing rod 12, and the first swing rod 10 and the second swing rod 12 are both hingedly connected with the lifting limiting block 11, one end of the first swing rod 10 is rotationally connected with the bottom end of the driving sleeve 7 through a rotating shaft, one end of the second swing rod 12 is rotationally connected with a fixing sleeve 13 arranged at the bottom of the connecting column 5 through a rotating shaft, and the fixing sleeve 13 is fixedly connected with the base plate 4;

[0010] Three limiting pieces 8 uniformly distributed in the circumferential direction are arranged on the top end surface of the base plate 4;

[0011] The limiting piece 8 is an inverted L-shaped structure, the top of the limiting piece 8 is provided with a limiting short side 9, the outer ends of the three limiting short sides 9 are coaxial with a circle I, the diameter of the circle I is D5, the roots of the three limiting short sides 9 are coaxial with a circle II, the diameter of the circle II is D6, and D6=D2<D5.

[0012] The outer diameter of the base plate 4 is D1, the diameter of the center hole arranged on the top plate 14 of the tray to be lifted by the lifting device is D2, and D1≤D2.

[0013] When the first swing rod 10 and the second swing rod 12 in the same limiting mechanism are in the state of approaching the same line, the outer end surfaces of all the lifting limiting blocks 11 are coaxial with a circle III, the diameter of the circle III is D3, when the first swing rod 10 and the second swing rod 12 in the same limiting mechanism are in the parallel state, the outer end surfaces of all the lifting limiting blocks 11 are coaxial with a circle IV, the diameter of the circle IV is D4, and D3<D1≤D2<D4.

[0014] Compared with the prior art, the lifting device has the following advantages:

[0015] This type of lifting device for handling copper tube trays features a simple structure, ingenious design, and reasonable layout. Addressing the problem that traditional internal support clamps cannot clamp certain special trays, it employs a unique structure that can easily change its maximum outer diameter (retract) and enter the cylinder on the tray. It then unfolds and rests on the bottom surface of the tray's top plate, enabling the lifting of such trays. Simultaneously, its limiting mechanism allows for significant deformation. In the working position, the two swing arms in the limiting mechanism are parallel to each other, with the lifting limiting blocks at the ends of the two swing arms in surface contact with the top plate of the workpiece. There is sufficient contact area between them, and in this state, the two swing arms are stacked and pressed against the base, providing combined support for the workpiece. This device changes the current situation where these trays can only be handled manually, effectively saving labor, improving work efficiency, and eliminating safety hazards. Furthermore, the hoisting device has a simple manufacturing process and low production cost, so it can be said that it has many advantages and is particularly suitable for promotion and application in this field, with a very broad market prospect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the hoisting fixture in the embodiment of this utility model (folded state).

[0018] Figure 3 This is a schematic diagram of the hoisting fixture in an embodiment of this utility model (intermediate state).

[0019] Figure 4 This is a schematic diagram of the hoisting fixture in the embodiment of this utility model (in unfolded state).

[0020] Figure 5 This is a cross-sectional view of the material tray to which this utility model embodiment is addressed. Detailed Implementation

[0021] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figures 1 to 5 As shown: A hoisting device for transporting copper tube trays includes a support frame 1, an electric hoist 2 is mounted on the crossbeam of the support frame 1, and a hoisting fixture 3 is connected to the electric hoist 2.

[0022] The lifting fixture 3 includes a chassis 4, a connecting column 5 at the center of the chassis 4, a lifting ring 6 at the top of the connecting column 5, a drive sleeve 7 movably sleeved on the connecting column 5, and three limiting mechanisms evenly distributed in the circumferential direction on the lifting fixture 3.

[0023] The limiting mechanism comprises a first swing lever 10, a lifting limiting block 11 and a second swing lever 12, and the first swing lever 10 and the second swing lever 12 are both hingedly connected with the lifting limiting block 11, one end of the first swing lever 10 is rotationally connected with the bottom end of the driving sleeve 7 through a rotating shaft, the other end of the second swing lever 12 is rotationally connected with a fixed sleeve 13 arranged at the bottom of the connecting column 5 through a rotating shaft, and the fixed sleeve 13 is fixedly connected with the bottom disc 4;

[0024] Three limiting pieces 8 are arranged on the top end surface of the bottom disc 4 and are uniformly distributed in the circumferential direction;

[0025] The limiting piece 8 is an inverted L-shaped structure, the top of the limiting piece 8 is provided with a limiting short side 9, the outer ends of the three limiting short sides 9 are coaxial with a circle one, the diameter of the circle one is D5, the roots of the three limiting short sides 9 are coaxial with a circle two, the diameter of the circle two is D6, and D6=D2<D5.

[0026] The outer diameter of the bottom disc 4 is D1, the diameter of the central hole arranged on the top plate 14 of the material disc to be hoisted by the hoisting device is D2, and D1≤D2.

[0027] When the first swing lever 10 and the second swing lever 12 in the same limiting mechanism are in a state close to being collinear, the outer end surfaces of all the lifting limiting blocks 11 are coaxial with a circle three, the diameter of the circle three is D3, when the first swing lever 10 and the second swing lever 12 in the same limiting mechanism are in a parallel state, the outer end surfaces of all the lifting limiting blocks 11 are coaxial with a circle four, the diameter of the circle four is D4, and D3<D1≤D2<D4.

[0028] It should be noted that, Figure 2 r1 is the radius of the bottom disc 4, and r3 is the radius of the circle three, Figure 4 r4 is the radius of the circle four, r5 is the radius of the circle one, and r6 is the radius of the circle two;

[0029] The working process of the hoisting device for carrying the copper pipe material disc is as follows: when it is needed to hoist the material disc 15 by using the device, first, the electric hoist 2 is operated to move on the cross beam of the support frame 1, so that the lifting jig 3 is moved to the upper side of the material disc 15, then the operator holds the driving sleeve 7, and since the driving sleeve 7 is movably connected with the connecting column 5, the bottom disc 4 and the connecting column 5 will naturally descend relative to the driving sleeve 7 under the action of the weight, so that the first swing lever 10 and the second swing lever 12 in the same limiting mechanism are moved to a state close to being collinear (for example, as shown in FIG. 6A). Figure 2As shown), at this time, the outer end faces of all the lifting limit blocks 11 are concentric circles, and the circle is circle three. At the same time, the diameter D3 of circle three is smaller than the diameter of the opening on the top plate of the material tray 15. Since the root of the upper limit short side 9 of the limit member 8 is also smaller than the diameter of the opening, the lifting fixture 3 in this state can pass through the opening on the top plate and enter the supporting cylinder below it. It continues to move until the limit short side 9 contacts the top plate. After that, the limit short side 9 hangs on the top plate, and the lifting fixture 3 cannot continue to move downward. In this process, the three limit members 8 can also play a guiding role, allowing the lifting fixture 3 to smoothly enter the inner cavity of the central cylinder of the material tray 15 from the opening on the top plate.

[0030] The operator releases the drive sleeve 7. At this time, the chassis 4 is relatively fixed, and the drive sleeve 7 falls naturally under its own weight until the bottom end of the drive sleeve 7 contacts the top surface of the fixed sleeve 13. During the above process, both the first swing arm 10 and the second swing arm 12 will swing in space until they change from a roughly collinear state to a state like... Figure 4 As shown, the three lifting limit blocks 11 are in an extended state. The outer end faces of the three lifting limit blocks 11 are concentric circles, and the circle is circle four. At the same time, the diameter D4 of circle four is larger than the diameter of the opening on the top plate of the material tray 15. At this time, the lifting jig 3 is lifted by the electric hoist 2. The three lifting limit blocks 11 in the lifting jig 3 will support the top plate from below, thereby driving the material tray 15 to be lifted as a whole.

[0031] After the material tray 15 is lowered and loses its upward lifting force, the lifting fixture 3 will descend relative to the top plate under its own weight until the limiting component 8 reattaches it to the opening in the top plate. At this time, the operator holds the drive sleeve 7 and pulls it upward again. All the limiting mechanisms retract and all the lifting limiting blocks 11 are retracted. Then the lifting fixture 3 can be pulled out from the opening in the top plate and separated from the material tray 15.

Claims

1. A hoisting device for handling a copper tube magazine, characterized in that: The lifting device comprises a support frame (1), an electric hoist (2) is arranged on the crossbeam of the support frame (1), a lifting jig (3) is connected to the electric hoist (2), the lifting jig (3) comprises a base plate (4), a connecting column (5) is arranged at the center of the base plate (4), a lifting ring (6) is arranged at the top end of the connecting column (5), a driving sleeve (7) is movably sleeved on the connecting column (5), three limiting mechanisms are arranged on the lifting jig (3) and are uniformly distributed in the circumferential direction, the limiting mechanism comprises a first swing rod (10), a lifting limiting block (11) and a second swing rod (12), the first swing rod (10) and the second swing rod (12) are both hingedly connected with the lifting limiting block (11), the other end of the first swing rod (10) is rotatably connected with the bottom end of the driving sleeve (7) through a rotating shaft, the other end of the second swing rod (12) is rotatably connected with a fixing sleeve (13) arranged at the bottom of the connecting column (5) through a rotating shaft, and the fixing sleeve (13) is fixedly connected with the base plate (4), three limiting pieces (8) are arranged on the top end surface of the base plate (4) and are uniformly distributed in the circumferential direction, the limiting piece (8) is an inverted L-shaped structure, a limiting short side (9) is arranged at the top of the limiting piece (8), the outer ends of the three limiting short sides (9) are coaxial with a circle one, the diameter of the circle one is D5, the roots of the three limiting short sides (9) are coaxial with a circle two, the diameter of the circle two is D6, and D6=D2<D5.

2. The hoisting device for handling copper tube reels according to claim 1, characterized in that: The outer diameter of the base plate (4) is D1, the diameter of the central hole arranged on the top plate (14) of the material tray hoisted by the lifting device is D2, and D1≤D2.

3. The hoisting device for handling copper tube reels according to claim 2, characterized in that: When the first swing rod (10) and the second swing rod (12) in the same limiting mechanism are in the state of approaching the same line, the outer end surfaces of all the lifting limiting blocks (11) are coaxial with a circle three, the diameter of the circle three is D3, when the first swing rod (10) and the second swing rod (12) in the same limiting mechanism are in the parallel state, the outer end surfaces of all the lifting limiting blocks (11) are coaxial with a circle four, the diameter of the circle four is D4, and D3<D1≤D2<D4.

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