Winch for forced braking of crown block

Abstract

The utility model relates to the technical field of winches, and discloses a winch for forced braking of a crown block, which comprises a winch body which comprises a base, a driving motor and a rotating shaft, and is characterized in that a fixing mechanism is fixedly connected onto the rotating shaft, a brake disc is fixedly connected onto the fixing mechanism, and a support frame is fixedly connected onto the base. The supporting frame is fixedly connected with a brake mechanism. Under the combined action of the brake mechanism and the brake disc, the rotary shaft of the winch can be braked, the risk that the winch possibly faces overload due to overloading or misoperation when the winch is used for hoisting heavy objects is prevented, the hoisted heavy objects can be prevented from falling off by braking the winch, the objects are prevented from being damaged, and the service life of the winch is prolonged. And meanwhile, the brake disc is convenient to replace, the operation is simple and convenient, the brake speed is high, and the brake effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of winches, in particular to a winch used for forced braking of an overhead crane. Background Art

[0002] A winch is a mechanical device used to lift or move heavy objects. Its main function is to lift the goods vertically or move them horizontally. It completes its work by driving levers, gears or brakes electrically or manually. It has the characteristics of high efficiency, obvious benefits and easy operation, so it is widely used in modern industrial and civil fields.

[0003] At present, the patent with announcement number CN210260939U discloses a high stability winch, including a base, a mounting plate is provided on one side of the top of the base, a first mounting block is provided at the middle position of the top of the base, a second mounting block is provided on the other side of the top of the base, a sliding rod is provided at the front and rear ends between the mounting plate and the first mounting block, and a slider is movably installed on the sliding rod, a rotating motor is provided on the top of the slider, a supporting block is provided above the first mounting block and the second mounting block, and a sliding sleeve is provided through the supporting block; the utility model moves the slider along the sliding rod, so that the rotating motor moves and rotates with the rotating shaft, which is convenient for the drum to move left and right, and the wire rope is wound evenly and in a variable turn. The wire rope passes through the first guide wheel, and the first guide wheel plays the role of a fixed pulley, guiding the wire rope to change direction, and also plays a fixing role on the wire rope, preventing the wire rope from moving left and right, and is more stable when suspending heavy objects. .

[0004] However, the above technology still has the following problems:

[0005] When the winch is hoisting and moving heavy objects on the overhead crane, the mass and volume of these heavy objects may be quite large. If the winch loses control during operation, the heavy objects may fall, causing serious personal injury and property loss. Therefore, it is necessary to quickly brake the winch's rotating shaft to prevent the objects hoisted on the winch from falling off. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a winch for forced braking of an overhead crane, which prevents the heavy object from falling when the winch on the overhead crane is hoisting the heavy object.

[0007] The utility model provides the following technical solution: a winch for forced braking of an overhead crane, comprising a winch body, the winch body comprising a base, a drive motor, and a rotating shaft, characterized in that a fixing mechanism is fixedly connected to the rotating shaft, a brake disc is fixedly connected to the fixing mechanism, the base is fixedly connected to a support frame, and the support frame is fixedly connected to the brake mechanism.

[0008] Furthermore, the fixing mechanism comprises a first fixing plate fixed on the rotating shaft, a surface of the first fixing plate is provided with a plurality of first grooves, and a second fixing plate is sleeved on the rotating shaft.

[0009] Furthermore, the brake disc is composed of two semi-circular discs, and the two semi-circular discs are wedge-shaped connected.

[0010] Furthermore, a plurality of fixing blocks identical to the first grooves are fixedly connected to the surface of the brake disc.

[0011] Furthermore, a plurality of second grooves are formed inside the brake disc.

[0012] Furthermore, the brake mechanism includes a hydraulic pump and a caliper body fixed on a support frame, an oil pipe is fixedly connected between the hydraulic pump and the caliper body, a piston is slidably connected below the caliper body, a sealing ring is provided on the piston sleeve, and a brake block is fixedly connected to the front end of the piston.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] This winch used for forced braking of an overhead crane can brake the rotating shaft of the winch through the joint action of the winch braking mechanism and the brake disc, to prevent the winch from facing the risk of overload due to excessive load or improper operation when the winch is hoisting heavy objects to move. Braking it can prevent the hoisted heavy objects from falling, avoid damage to objects, reduce economic losses, and at the same time, it is convenient to replace the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the fixing mechanism and the brake disc of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model as a whole;

[0018] Figure 4 for Figure 3 Enlarged view of point A above.

[0019] In the figure: 1. winch body; 2. base; 3. drive motor; 4. rotating shaft; 5. fixing mechanism; 501. first fixed plate; 502. first groove; 503. second fixed plate; 6. brake disc; 7. support frame; 8. brake mechanism; 801. hydraulic pump; 802. caliper body; 803. oil pipe; 804. piston; 805. sealing ring; 806. brake block; 9. fixing block; 10. second groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 4 A winch for forced braking of an overhead crane comprises a winch body 1, the winch body 1 comprises a base 2, a drive motor 3, and a rotating shaft 4, a fixing mechanism 5 is fixedly connected to the rotating shaft 4, a brake disc 6 is fixedly connected to the fixing mechanism 5, the base 2 is fixedly connected to a support frame 7, and the support frame 7 is fixedly connected to a brake mechanism 8.

[0022] The winch used for forced braking of an overhead crane in the utility model is similar to the existing winch structure, such as the patent with announcement number CN210260939U which discloses a high-stability winch. The main improvement of the utility model is that the rotating shaft 4 of the winch can be braked by the joint action of the brake mechanism 8 and the brake disc 6 to prevent the winch from facing the risk of overload due to excessive load or improper operation when the winch is hoisting heavy objects. Braking it can prevent the hoisted heavy objects from falling, avoid damage to objects, reduce economic losses, and at the same time, it is convenient to replace the brake disc 6. Figures 1 to 4 As shown, in the winch for forced braking of an overhead crane in the utility model, during the process of hoisting heavy objects for transportation, the hydraulic pump 801 is turned on, and the hydraulic oil flows into the caliper body 802 through the oil pipe 803, and the hydraulic oil pushes the piston 804 forward, so that the brake blocks 806 on both sides of the brake disc 6 move, and the two brake blocks 806 squeeze the brake disc 6, so that the rotation of the rotating shaft 4 stops, so as to ensure that the heavy objects hoisted by the winch will not fall. In this process, the sealing ring 805 ensures that the hydraulic oil in the caliper body 802 will not leak. When the brake disc 6 and the brake blocks 806 are damaged by long-term friction, the bolts and nuts on the fixing mechanism 5 can be released, and the second fixed disc 503 can be moved outward, and the brake disc 6 composed of two semi-circular discs can be removed in turn. With the replaced brake disc 6, the fixing block 9 on the brake disc 6 is first inserted into the first groove 502, and then the second fixed disc 503 is moved to fit the brake disc 6, and fixed by bolts and screws.

[0023] like Figure 2 As shown, the fixing mechanism 5 includes a first fixing plate 501 fixed on the rotating shaft 4 , a plurality of first grooves 502 are formed on the surface of the first fixing plate 501 , and a second fixing plate 503 is sleeved on the rotating shaft 4 .

[0024] Specifically, when the brake disc 6 and the brake block 806 are damaged due to long-term friction, the bolts and nuts on the fixing mechanism 5 are loosened and the second fixing disc 503 is moved outward, and the brake disc 6 consisting of the two semi-circular discs can be removed in turn. Follow the replacement brake disc 6, first insert the fixing block 9 on the brake disc 6 into the first groove 502, and then move the second fixing disc 503 to fit the brake disc 6 and fix it with bolts and screws.

[0025] like Figure 2 As shown, the brake disc 6 is composed of two semi-circular discs, and the two semi-circular discs are connected in a wedge shape.

[0026] Specifically, the friction between the brake disc 6 and the brake block 806 will cause certain damage, and it needs to be replaced. The complete brake disc 6 is not easy to replace, but the two half discs connected by a wedge shape are convenient for replacement and will not affect the braking effect.

[0027] like Figure 2 As shown, a plurality of fixing blocks 9 identical to the first grooves 502 are fixedly connected to the surface of the brake disc 6 .

[0028] Specifically, when installing the brake disc 6 , by inserting the fixing block 9 into the first groove 502 , positioning can be achieved quickly, and at the same time, the fixing effect of the brake disc 6 can be enhanced.

[0029] like Figure 2 As shown, a plurality of second grooves 10 are formed inside the brake disc 6 .

[0030] Specifically, the friction between the brake disc 6 and the brake block 806 generates heat, which reduces the braking effect. The second groove 10 can dissipate heat from the brake disc 6 to improve the braking effect.

[0031] like Figure 3 or Figure 4 As shown, the brake mechanism 8 includes a hydraulic pump 801 and a caliper body 802 fixed on the support frame 7, an oil pipe 803 is fixedly connected between the hydraulic pump 801 and the caliper body 802, a piston 804 is slidably connected below the caliper body 802, a sealing ring 805 is provided on the outer sleeve of the piston 804, and a brake block 806 is fixedly connected to the front end of the piston 804.

[0032] Specifically, when the heavy objects hoisted on the winch are transported, the hydraulic pump 801 is turned on, and the hydraulic oil flows into the caliper body 802 through the oil pipe 803. The hydraulic oil pushes the piston 804 forward, thereby moving the brake blocks 806 on both sides of the brake disc 6. The two brake blocks 806 squeeze the brake disc 6 to stop the rotation of the rotating shaft 4 to ensure that the heavy objects hoisted by the winch will not fall. The sealing ring 805 ensures that the hydraulic oil in the caliper body 802 will not leak during this process.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A winch for forced braking of an overhead crane, comprising a winch body (1), the winch body (1) comprising a base (2), a drive motor (3), and a rotating shaft (4), characterized in that: The rotating shaft (4) is fixedly connected to a fixing mechanism (5), the fixing mechanism (5) is fixedly connected to a brake disc (6), the base (2) is fixedly connected to a support frame (7), and the support frame (7) is fixedly connected to a brake mechanism (8).

2. A winch for forced braking of an overhead crane according to claim 1, characterized in that: The fixing mechanism (5) comprises a first fixing plate (501) fixed on the rotating shaft (4), a plurality of first grooves (502) are provided on the surface of the first fixing plate (501), and a second fixing plate (503) is sleeved on the rotating shaft (4).

3. A winch for forced braking of an overhead crane according to claim 1 or 2, characterized in that: The brake disc (6) is composed of two semi-circular discs, and the two semi-circular discs are connected in a wedge shape.

4. A winch for forced braking of an overhead crane according to claim 1 or 2, characterized in that: A plurality of fixing blocks (9) identical to the first grooves (502) are fixedly connected to the surface of the brake disc (6).

5. The winch for forced braking of an overhead crane according to claim 3, characterized in that: A plurality of fixing blocks (9) identical to the first grooves (502) are fixedly connected to the surface of the brake disc (6).

6. A winch for forced braking of an overhead crane according to claim 3, characterized in that: A plurality of second grooves (10) are formed inside the brake disc (6).

7. A winch for forced braking of an overhead crane according to claim 1, 2, 5 or 6, characterized in that: The brake mechanism (8) comprises a hydraulic pump (801) and a caliper body (802) fixed on a support frame (7); an oil pipe (803) is fixedly connected between the hydraulic pump (801) and the caliper body (802); a piston (804) is slidably connected below the caliper body (802); a sealing ring (805) is provided on the outer sleeve of the piston (804); and a brake block (806) is fixedly connected to the front end of the piston (804).

8. The winch for forced braking of an overhead crane according to claim 3, characterized in that: The brake mechanism (8) comprises a hydraulic pump (801) and a caliper body (802) fixed on a support frame (7); an oil pipe (803) is fixedly connected between the hydraulic pump (801) and the caliper body (802); a piston (804) is slidably connected below the caliper body (802); a sealing ring (805) is provided on the outer sleeve of the piston (804); and a brake block (806) is fixedly connected to the front end of the piston (804).

9. A winch for forced braking of an overhead crane according to claim 4, characterized in that: The brake mechanism (8) comprises a hydraulic pump (801) and a caliper body (802) fixed on a support frame (7); an oil pipe (803) is fixedly connected between the hydraulic pump (801) and the caliper body (802); a piston (804) is slidably connected below the caliper body (802); a sealing ring (805) is provided on the outer sleeve of the piston (804); and a brake block (806) is fixedly connected to the front end of the piston (804).

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