Winding type pretension winch

Abstract

The utility model relates to the technical field of winches, and discloses a winding type pretension winch which comprises a fixed base, a movable base is arranged on the left side of the fixed base, and a variable frequency motor is installed on the right side of the top end of the fixed base. According to the winding type pretension winch, the guide groove, the gear, the rotating plate, the toothed plate, the limiting rod, the fixing pin and the limiting hole are arranged, the rotating plate drives the gear to rotate through the connecting shaft, the gear rotates so that the toothed plate can drive the movable base to move left and right to adjust the overall length of the base, and after adjustment, the fixing pin is inserted into the limiting hole to limit and fix the rotating plate; the overall length of the base can be adjusted to adapt to a rope disc with a certain length range, so that the use range of the machine can be expanded, the constant tension force during rope winding and unwinding can be ensured by using the variable frequency motor, and the problems that the overall length of the base is inconvenient to adjust according to requirements, the flexibility is poor, and the rope disc with a certain length range is inconvenient to adapt are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist technical field, concretely is a kind of winding type pre-tension hoist. BACKGROUND

[0002] The working principle of hoist is to drive drum by manpower or mechanical power, and complete traction work by winding rope, and hoist is widely used in construction, water conservancy engineering, forestry, mine, wharf and other fields, and is used for material lifting or flat dragging, and currently domestic steel wire rope (cable) manufacturers only provide complete winding reel when product is shipped, and user can only make a simple support to place rope when using, and personnel control reel is needed when one end is pulled out, to prevent fast rotation of steel wire rope loosening and coiling, which is extremely inconvenient, unstable and unsafe, and it is inconvenient to adjust the length of base body according to demand, and flexibility is poor, and it is inconvenient to adapt to reel of certain range length.

[0003] Therefore, we propose a winding type pre-tension hoist to improve the above problems. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a winding type pre-tension hoist to solve the problem of inconvenient adjustment of the length of base body according to demand, poor flexibility and inconvenient adaptation to reel of certain range length in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a winding type pre-tension hoist, comprising fixed base, the left side of the fixed base is provided with movable base, the right side of the top end of the fixed base is installed with variable frequency motor, the output end of the variable frequency motor is fixedly connected with rotating shaft, the fixed base and movable base are provided with adjusting structure convenient for adjusting the distance between the fixed base and movable base;

[0006] Adjusting structure includes gear, rotating plate and toothed plate, the left side inside the fixed base is movably connected with connecting shaft, the front and rear ends outside the connecting shaft are fixedly connected with gear, the front end of the connecting shaft is fixedly connected with rotating plate, the edge inside the rotating plate is provided with limiting hole, the inside of the limiting hole is provided with fixed pin, the top end of the right side of the movable base is fixedly connected with toothed plate, the front and rear ends of the toothed plate are fixedly connected with limiting rod, the top of the front and rear ends inside the fixed base is provided with guide groove, the left side of the front end of the fixed base is fixedly connected with limiting frame.

[0007] As a further technical scheme of the utility model, the right side of the toothed plate is arranged at the left side of the top end inside the fixed base, and the limiting rod slides left and right inside the guide groove.

[0008] As a further technical scheme of the utility model, the gear is arranged at the bottom end of the toothed plate, the gear and the toothed plate are matched with each other, and the rotating plate is fixed through the fixing pin and the limiting hole.

[0009] As a further technical scheme of the utility model, the rotating shaft is externally fixedly connected with a brake disc on the right side, the top end of the fixed base is provided with a protective shell, a hydraulic cylinder is installed at the front end in the protective shell, fixed blocks are fixedly connected at the front and back ends of the bottom end in the protective shell respectively, a hinge shaft is arranged at the left side of the fixed block, a brake arm is movably hinged at the top end outside the hinge shaft, a first limiting block and a second limiting block are movably hinged at one end of the fixing pin close to the middle, a movable slot is formed in the inside of the fixing pin, an installation block is installed at the top end of the hydraulic cylinder, a pull rod is installed between the installation block and the brake arm, and a brake block is movably hinged at one side of the brake arm.

[0010] As a further technical scheme of the utility model, the brake arm is provided with two groups, and the brake block is arranged at the front and back ends of the brake disc.

[0011] As a further technical scheme of the utility model, the pull rod is installed between the brake arm at the rear end and the installation block, and the rear end of the second limiting block is movable in the inside of the movable slot.

[0012] As a further technical scheme of the utility model, the top end of the movable base and the left side of the top end of the fixed base are respectively provided with installation plates, the top end of the installation plate is fixedly connected with a supporting plate, the outside of the rotating shaft is provided with a rope disc, a rope is wound around the outside of the rope disc, shaft sleeves are fixedly connected at the left and right sides of the outside of the rope disc, fixed holes are respectively formed in the inside of the shaft sleeve and the rotating shaft, fixed bolts are arranged in the inside of the fixed holes, and installation bolts are arranged at the two sides in the inside of the installation plate.

[0013] As a further technical scheme of the utility model, the installation plate is installed at the top end of the movable base and the fixed base through the installation bolts respectively, the supporting plate is arranged at the two sides outside the rotating shaft, and the shaft sleeve is installed at the outside of the rotating shaft through the fixed hole and the fixed bolt.

[0014] Compared with the prior art, the winding type pretension winch has the advantages that the length of the base body can be conveniently adjusted, the rotating shaft and the winding shaft can be conveniently fixed, and the winding shaft can be conveniently replaced.

[0015] (1) By being provided with guide slot, gear, rotating plate, toothed plate, limiting rod, fixed pin and limiting hole, when the distance between the fixed base and the movable base needs to be adjusted to control the length of the whole base, the rotating plate is rotated, the rotating plate drives the gear to rotate through the connecting shaft, since the gear and the toothed plate cooperate with each other and the movable base is fixedly connected to one side of the toothed plate, therefore, the gear rotating can drive the toothed plate to move left and right to adjust the length of the whole base, after the adjustment, the fixed pin is inserted into the inside of the limiting hole to limit and fix the rotating plate, the length of the whole base can be adjusted to adapt to the rope disc of a certain range length, thereby the use range of the mechanical device can be improved, and the constant tension of the rope during winding and unwinding can be ensured by using the frequency conversion motor;

[0016] (2) By being provided with brake arm, brake block, brake disc, pull rod, hydraulic cylinder, second limiting block and movable groove, when the rotating shaft and the goods at the bottom end of the rope need to be positioned, the hydraulic cylinder is started, the hydraulic cylinder drives the pull rod to pull the brake arm through the mounting block, so that the brake block on the brake arm clamps and fixes the brake disc, since the brake disc is fixed outside the rotating shaft, therefore, fixing the rotating shaft can prevent the rotating shaft from rotating accidentally to affect the positioning;

[0017] (3) By being provided with supporting plate, fixed hole, shaft sleeve, fixed bolt, mounting plate and mounting bolt, when the rope disc and the shaft sleeve need to be replaced, the mounting bolt is screwed out from the inside of the mounting plate to make the mounting plate lose the fixation, after losing the fixation, the supporting plate is pushed to move to the left side outside the rotating shaft, after moving the supporting plate, the fixed bolt is screwed out from the inside of the fixed hole to make the shaft sleeve lose the fixation, and the rope disc can be disassembled and replaced after the shaft sleeve loses the fixation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view sectional structure schematic view of the utility model;

[0019] Figure 2 It is a brake disc side view enlarged structure schematic view of the utility model;

[0020] Figure 3 It is a gear top view structure schematic view of the utility model;

[0021] Figure 4 It is a Figure 2 It is a sectional enlarged structure schematic view of A in the utility model.

[0022] In the figure: 1, fixed base; 2, guide groove; 3, gear; 4, rotating plate; 5, limiting frame; 6, rope; 7, toothed plate; 8, limiting rod; 9, movable base; 10, support plate; 11, rotating shaft; 12, fixed hole; 13, shaft sleeve; 14, rope reel; 15, fixing bolt; 16, mounting plate; 17, mounting bolt; 18, protective shell; 19, frequency conversion motor; 20, first limiting block; 21, brake arm; 22, brake block; 23, brake disc; 24, pull rod; 25, mounting block; 26, hydraulic cylinder; 27, fixed block; 28, second limiting block; 29, connecting shaft; 30, fixed pin; 31, limiting hole; 32, hinged shaft; 33, movable groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides an embodiment; a winding type pre-tension winch, including fixed base 1, the left side of fixed base 1 is provided with movable base 9, the right side of fixed base 1 top end is installed with frequency conversion motor 19, the output of frequency conversion motor 19 is fixedly connected with rotating shaft 11, and the adjusting structure that is convenient for adjusting the distance between fixed base 1 and movable base 9 is arranged between fixed base 1 and movable base 9;

[0025] Adjusting structure includes gear 3, rotating plate 4 and toothed plate 7, the left side in the inside of fixed base 1 is movably connected with connecting shaft 29, the front and rear ends outside connecting shaft 29 are fixedly connected with gear 3, the front end of connecting shaft 29 is fixedly connected with rotating plate 4, the edge in the inside of rotating plate 4 is provided with limiting hole 31, the inside of limiting hole 31 is provided with fixed pin 30, the top end of movable base 9 right side is fixedly connected with toothed plate 7, the front and rear ends of toothed plate 7 are fixedly connected with limiting rod 8, the top of the front and rear ends in the inside of fixed base 1 is provided with guide groove 2, and the left side of the front end of fixed base 1 is fixedly connected with limiting frame 5;

[0026] The right side of toothed plate 7 is arranged in the left side of the top end in the inside of fixed base 1, limiting rod 8 slides left and right in the inside of guide groove 2, gear 3 is arranged at the bottom end of toothed plate 7, gear 3 and toothed plate 7 cooperate with each other, and rotating plate 4 is fixed through fixed pin 30 and limiting hole 31;

[0027] Specifically, as Figure 1 And Figure 3As shown, when the distance between the fixed base 1 and the movable base 9 needs to be adjusted to control the length of the whole base, the rotating plate 4 is rotated to drive the gear 3 to rotate through the connecting shaft 29. Since the gear 3 and the toothed plate 7 cooperate with each other and the movable base 9 is fixedly connected to one side of the toothed plate 7, the rotation of the gear 3 can drive the toothed plate 7 to move the movable base 9 left and right to adjust the length of the whole base. After adjustment, the fixed pin 30 is inserted into the limiting hole 31 to limit and fix the rotating plate 4. The length of the whole base can be adjusted to adapt to the rope disc 14 within a certain range, thereby improving the use range of the machine. The use of the variable frequency motor 19 can ensure the constant tension of the rope 6 during winding and unwinding.

[0028] The right side of the rotating shaft 11 is fixedly connected with a brake disc 23. The top end of the fixed base 1 is provided with a protective shell 18. The front end of the protective shell 18 is provided with a hydraulic cylinder 26. The front and rear ends of the bottom end of the protective shell 18 are fixedly connected with fixed blocks 27. The left side of the fixed block 27 is provided with a hinge shaft 32. The top end of the hinge shaft 32 is movably hinged with a brake arm 21. One end of the fixed pin 30 near the middle is movably hinged with a first limiting block 20 and a second limiting block 28. The inside of the fixed pin 30 is provided with a movable groove 33. The top end of the hydraulic cylinder 26 is provided with a mounting block 25. The brake arm 21 is movably hinged with a brake block 22 on one side. The brake arm 21 is provided with two groups. The brake block 22 is arranged at the front and rear ends of the brake disc 23. The brake arm 21 at the rear end is movably arranged in the movable groove 33.

[0029] Specifically, as shown in Figure 1 、 Figure 2 and Figure 4 , when the rotating shaft 11 and the goods at the bottom end of the rope 6 need to be positioned, the hydraulic cylinder 26 is started. The hydraulic cylinder 26 drives the brake arm 21 to pull the brake block 22 on the brake arm 21 to clamp and fix the brake disc 23. Since the brake disc 23 is fixed to the outside of the rotating shaft 11, fixing the rotating shaft 11 can prevent the rotating shaft 11 from rotating accidentally with the shaft sleeve 13, which affects the positioning.

[0030] Mounting plates 16 are respectively provided on the top of the movable base 9 and the left side of the top of the fixed base 1. A support plate 10 is fixedly connected to the top of the mounting plate 16. A rope coil 14 is provided on the outside of the rotating shaft 11. A rope 6 is wound around the outside of the rope coil 14. Bushings 13 are fixedly connected to the left and right sides of the outside of the rope coil 14. Fixing holes 12 are respectively opened inside the bushings 13 and the rotating shaft 11. Fixing bolts 15 are provided inside the fixing holes 12. Mounting bolts 17 are provided on both sides inside the mounting plate 16. The mounting plate 16 is installed on the top of the movable base 9 and the fixed base 1 respectively through the mounting bolts 17. The support plate 10 is provided on both sides outside the rotating shaft 11. The bushings 13 are installed on the outside of the rotating shaft 11 through the fixing holes 12 and the fixing bolts 15.

[0031] Specifically, such as Figure 1 As shown, when it is necessary to replace the rope reel 14 and the bushing 13, first unscrew the mounting bolt 17 from the inside of the mounting plate 16 to make the mounting plate 16 unfixed. After it is unfixed, push the support plate 10 to move the support plate 10 to the left side outside the rotating shaft 11. After the support plate 10 is moved, unscrew the fixing bolt 15 from the inside of the fixing hole 12 to make the bushing 13 unfixed. After the bushing 13 is unfixed, the rope reel 14 can be disassembled and replaced.

[0032] Working principle: the utility model discloses in use rotate the rotary plate 4, and the rotary plate 4 is driven gear 3 rotation through connecting shaft 29, because gear 3 and the gear plate 7 are mutually matched and movable base 9 is fixedly connected on one side of gear plate 7, so gear 3 rotation can make gear plate 7 drive movable base 9 left and right movement adjustment base whole length, after adjusting, the fixed pin 30 is inserted into the inside of limiting hole 31 to the rotary plate 4 limit fixed, prevent rotary plate 4 accidentally drive gear 3 movement, the length of adjustment base whole can adapt to certain range length's rope reel 14, can improve the use range of the machinery for this, use variable frequency motor 19 can guarantee the constant tension of rope 6 winding and unwinding, through PLC setting rope 6 tension, can adapt to a variety of working conditions, after adjusting, again through mounting bolt 17 to fixed mounting plate 16, need to replace rope reel 14 and shaft sleeve 13 first mounting bolt 17 is screwed from the inside of mounting plate 16 makes mounting plate 16 lose fixed, lose fixed after pushing support plate 10 makes support plate 10 in the left side of the outside of rotating shaft 11, after moving support plate 10, the fixed bolt 15 is screwed from the inside of fixed hole 12 makes shaft sleeve 13 lose fixed, shaft sleeve 13 loses fixed and can dismantle and replace rope reel 14, when winding and unwinding rope 6, start variable frequency motor 19, and variable frequency motor 19 is wound and unwound through rotating shaft 11 to rope 6, need to position the goods at the bottom of rotating shaft 11 and rope 6 and start hydraulic cylinder 26, and hydraulic cylinder 26 is driven pull rod 24 to pull brake arm 21, so that the brake block 22 on brake arm 21 clamps brake disc 23 and limits fixed brake disc 23, because brake disc 23 is fixed on the outside of rotating shaft 11, so fixing rotating shaft 11 can prevent rotating shaft 11 accidentally drive shaft sleeve 13 rotation and affect positioning.

[0033] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A winding pre-tension winch comprising a fixed base (1), characterized in that: The left side of the fixed base (1) is provided with a movable base (9), the right side of the top end of the fixed base (1) is provided with a variable frequency motor (19), the output end of the variable frequency motor (19) is fixedly connected with a rotating shaft (11), and the fixed base (1) and the movable base (9) are provided with an adjusting structure for adjusting the distance between the fixed base (1) and the movable base (9). The adjusting structure comprises a gear (3), a rotating plate (4) and a toothed plate (7), the left side of the inside of the fixed base (1) is movably connected with a connecting shaft (29), the front and rear ends of the outside of the connecting shaft (29) are fixedly connected with the gear (3), the front end of the connecting shaft (29) is fixedly connected with the rotating plate (4), the edge of the inside of the rotating plate (4) is provided with a limiting hole (31), the inside of the limiting hole (31) is provided with a fixed pin (30), the top end of the right side of the movable base (9) is fixedly connected with the toothed plate (7), the front and rear ends of the toothed plate (7) are fixedly connected with limiting rods (8), and the top of the front and rear ends of the inside of the fixed base (1) is provided with a guide groove (2).

2. A wrap-around pretensioning hoist according to claim 1, characterized in that: The right side of the toothed plate (7) is arranged at the left side of the top end of the inside of the fixed base (1), and the limiting rods (8) slide left and right in the guide grooves (2).

3. A wrap-around pretensioning hoist according to claim 1, characterized in that: The gear (3) is arranged at the bottom end of the toothed plate (7), the gear (3) and the toothed plate (7) cooperate with each other, and the rotating plate (4) is fixed through the fixed pin (30) and the limiting hole (31).

4. A wrap-around pretensioning hoist according to claim 1, characterized in that: The right side of the outside of the rotating shaft (11) is fixedly connected with a brake disc (23), the top end of the fixed base (1) is provided with a protective shell (18), the front end of the inside of the protective shell (18) is provided with a hydraulic cylinder (26), the front and rear ends of the bottom end of the inside of the protective shell (18) are respectively fixedly connected with fixed blocks (27), the left side of the fixed block (27) is provided with a hinged shaft (32), the top end of the outside of the hinged shaft (32) is movably hinged with a brake arm (21), one end of the fixed pin (30) close to the middle is movably hinged with a first limiting block (20) and a second limiting block (28), the inside of the fixed pin (30) is provided with a movable groove (33), the top end of the hydraulic cylinder (26) is provided with a mounting block (25), the mounting block (25) and the brake arm (21) are provided with a pull rod (24), and one side of the brake arm (21) is movably hinged with a brake block (22).

5. A wrap-around pretensioning hoist according to claim 4, characterized in that: The brake arm (21) is provided with two groups, and the brake block (22) is arranged at the front and rear ends of the brake disc (23).

6. A wrap-around pretensioning hoist according to claim 4, characterized in that: The pull rod (24) is mounted between the brake arm (21) at the rear end and the mounting block (25), and the rear end of the second limiting block (28) is movably arranged in the movable groove (33).

7. A wrap-around pretensioning hoist according to claim 1, characterized in that: The top end of the movable base (9) and the left side of the top end of the fixed base (1) are respectively provided with mounting plates (16), the top end of the mounting plate (16) is fixedly connected with a supporting plate (10), the outer part of the rotating shaft (11) is provided with a rope reel (14), the outer part of the rope reel (14) is wound with a rope (6), the left and right sides of the outer part of the rope reel (14) are fixedly connected with shaft sleeves (13), the inner parts of the shaft sleeve (13) and the rotating shaft (11) are respectively provided with fixed holes (12), the inner part of the fixed hole (12) is provided with a fixed bolt (15), and the inner part of the mounting plate (16) is provided with mounting bolts (17) on the two sides.

8. A wrap-around pretensioning hoist according to claim 7, characterized in that: The mounting plate (16) is mounted at the top end of the movable base (9) and the fixed base (1) through the mounting bolts (17), the supporting plate (10) is arranged on the two sides of the outer part of the rotating shaft (11), and the shaft sleeve (13) is mounted on the outer part of the rotating shaft (11) through the fixed hole (12) and the fixed bolt (15).

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