A handling tool for a coal mill

Abstract

The utility model belongs to coal mill hoisting technical field especially, it is a kind of coal mill's handling tool, including coal mill body, the lower surface of coal mill body is fixedly connected with handling base, the surface of handling base is equipped with balancing mechanism, the balancing mechanism includes sling, the lower end of sling is fixedly connected with counterweight. This coal mill's handling tool, through setting the surface installation balancing mechanism of handling base, utilize the hinge seat in balancing mechanism, and similar telescopic rod's screw rod and limit rod mechanism, increase the extension range of counterweight, further can under the condition of reducing counterweight gravity, through increasing the length of force arm, reach the effect of balancing gravity, simultaneously, through increasing the movable range of counterweight, make the range of balancing mechanism adaptation coal mill body increase, can balance to the coal mill body of multiple shapes, to facilitate use.

Description

Technical Field

[0001] This utility model relates to the field of coal mill hoisting technology, and in particular to a coal mill handling fixture. Background Technology

[0002] During the handling of coal mills, their irregular structure makes them prone to instability during hoisting, causing them to tilt to one side and potentially overturn, damaging their internal structure, or even leading to hoisting failure and slippage. Existing methods that use counterweights for balance often place these counterweights close to the mill body. Due to the short lever arm, this increases the required weight of the counterweights, further increasing the overall weight and significantly increasing the difficulty of hoisting, making them unsuitable for use. Utility Model Content

[0003] To address the technical problem that existing coal mill handling fixtures are not convenient for balancing the center of gravity during hoisting, this utility model proposes a coal mill handling fixture.

[0004] The present invention discloses a handling fixture for a coal mill, comprising a coal mill body, a handling base fixedly connected to the lower surface of the coal mill body, a balancing mechanism installed on the surface of the handling base, the balancing mechanism comprising a sling, and a counterweight fixedly connected to the lower end of the sling.

[0005] Preferably, a groove is formed on the lower outer wall surface of the transport base, a slider is slidably connected to the inner wall of the groove, a hinge seat is fixedly connected to the surface of the slider, a limit rod is hinged to the inner wall of the hinge seat by a screw, and a limit groove is formed on one end surface of the limit rod.

[0006] With the above technical solution, while the hinge seat slides along the slide groove on the surface of the transport base, the limiting rod can deflect significantly on the surface of the hinge seat, thereby increasing the extension range of the sling and counterweight.

[0007] Preferably, a rod is slidably inserted into the inner wall of the limiting groove, a lead screw is fixedly connected to the end surface of the rod, one end surface of the lead screw is fixedly connected to the upper end of the sling, a limiting ring is fixedly connected to the other end surface of the lead screw, and the surface of the sling is slidably inserted into the inner wall of the limiting ring.

[0008] The above technical solution utilizes the rectangular cross-section of the insert rod and the inner wall of the limiting groove to fit the insert rod, thereby facilitating the obstruction of the screw's rotation through the limiting groove and the insert rod.

[0009] Preferably, the outer surface of the limiting rod is rotatably connected to a sleeve via a bearing, and a threaded sleeve is fixedly connected to the inner wall of one end of the sleeve, with the inner wall of the threaded sleeve being threadedly connected to the surface of the lead screw.

[0010] The above technical solution utilizes a sleeve to drive the lead screw through a threaded sleeve, thereby facilitating the control of the lead screw's extension and retraction. A handle can also be installed on the outer surface of the sleeve, making it easy to manually rotate the sleeve.

[0011] Preferably, one end of the threaded sleeve has a winding hole, and the surface of the sling is slidably inserted into the inner wall of the winding hole.

[0012] The above technical solution utilizes the winding hole to drive the sling, thereby facilitating the winding of the sling onto the surface of the lead screw.

[0013] Preferably, the upper surface of the hinge seat is threadedly connected to a nut via a screw, and the lower surface of the nut is fixedly connected to a pressing block, the lower end of which is slidably sleeved with the surface of the screw.

[0014] The above technical solution utilizes a compression rod composed of a ring and a compression rod, which allows the end of the ring to deflect as the nut rotates while the end of the compression rod presses against the surface of the transport base, thereby preventing the hinge seat from sliding on the surface of the transport base. Furthermore, a gasket or other structure can be added to reinforce the connection between the limit rod and the screw.

[0015] The beneficial effects of this utility model are as follows:

[0016] By installing a balancing mechanism on the surface of the transport base, and utilizing the hinged seat in the balancing mechanism, as well as the screw and limit rod mechanism similar to a telescopic rod, the extension range of the counterweight is increased. Thus, by increasing the lever arm length while reducing the weight of the counterweight, the effect of balancing gravity can be achieved. At the same time, by increasing the range of motion of the counterweight, the range of the balancing mechanism that can be adapted to the coal mill body is increased, enabling the balancing of coal mill bodies of various shapes, thereby facilitating its use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a handling fixture for a coal mill proposed in this utility model;

[0018] Figure 2 This utility model presents a diagram showing the retracted state of the screw structure of a handling fixture for a coal mill.

[0019] Figure 3 This is a cross-sectional view of the sleeve structure of a coal mill handling fixture proposed in this utility model;

[0020] Figure 4 This is a diagram showing the extended state of the lead screw structure of a coal mill handling fixture proposed in this utility model.

[0021] Figure 5This is a three-dimensional view of the hinged seat structure of a coal mill handling fixture proposed in this utility model.

[0022] In the diagram: 1. Coal mill body; 2. Transport base; 21. Slide; 3. Lifting cable; 31. Counterweight; 32. Sliding block; 33. Hinge seat; 34. Limiting rod; 35. Insert rod; 36. Lead screw; 37. Limiting ring; 38. Sleeve; 39. Threaded sleeve; 4. Nut; 5. Extrusion block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-5 A coal mill handling fixture includes a coal mill body 1, a handling base 2 fixedly connected to the lower surface of the coal mill body 1, a balancing mechanism installed on the surface of the handling base 2, the balancing mechanism including a sling 3, and a counterweight 31 fixedly connected to the lower end of the sling 3.

[0025] To install the counterweight 31, a groove 21 is provided on the lower outer wall surface of the transport base 2. A slider 32 is slidably connected to the inner wall of the groove 21. A hinge seat 33 is fixedly connected to the surface of the slider 32. A limit rod 34 is hinged to the inner wall of the hinge seat 33 by a screw. A limit groove is provided on one end surface of the limit rod 34. While the hinge seat 33 slides along the groove 21 on the surface of the transport base 2, the limit rod 34 can deflect significantly on the surface of the hinge seat 33, thereby increasing the load capacity. The extension range of the sling 3 and the counterweight 31 is such that a rod 35 is slidably inserted into the inner wall of the limiting groove, and a screw 36 is fixedly connected to the end surface of the rod 35. One end surface of the screw 36 is fixedly connected to the upper end of the sling 3, and a limiting ring 37 is fixedly connected to the other end surface of the screw 36. The surface of the sling 3 is slidably inserted into the inner wall of the limiting ring 37. The cross-section of the rod 35 is rectangular, and the inner wall of the limiting groove is adapted to the rod 35, so that the rotation of the screw 36 can be hindered by the limiting groove and the rod 35.

[0026] To drive the lead screw 36, a sleeve 38 is rotatably connected to the outer surface of the limit rod 34 via a bearing. A threaded sleeve 39 is fixedly connected to the inner wall of one end of the sleeve 38. The inner wall of the threaded sleeve 39 is threadedly connected to the surface of the lead screw 36. The lead screw 36 is driven by the sleeve 38 through the threaded sleeve 39, which facilitates the control of the extension and retraction of the lead screw 36. A handle can also be installed on the outer surface of the sleeve 38 to facilitate manual rotation of the sleeve 38. A winding hole is opened on the surface of one end of the threaded sleeve 39. The surface of the sling 3 is slidably inserted into the inner wall of the winding hole. The sling 3 is driven by the winding hole, which facilitates the winding of the sling 3 on the surface of the lead screw 36.

[0027] By installing a balancing mechanism on the surface of the transport base 2, and utilizing the hinge seat 33 in the balancing mechanism, as well as the telescopic rod-like lead screw 36 and limit rod 34 mechanism, the extension range of the counterweight 31 is increased. Thus, while reducing the weight of the counterweight 31, the effect of balancing gravity can be achieved by increasing the lever arm length. At the same time, by increasing the range of motion of the counterweight 31, the range of the balancing mechanism that can be adapted to the coal mill body 1 is increased, enabling the balancing of coal mill bodies 1 of various shapes, thereby facilitating its use.

[0028] The upper surface of the hinge seat 33 is connected to a nut 4 by a screw thread, and the lower surface of the nut 4 is fixedly connected to a pressing block 5. The lower end of the pressing block 5 is slidably sleeved with the surface of the screw. The pressing rod is composed of a ring and a pressing rod, so that the end of the ring can be deflected with the nut 4, and the end of the pressing rod can be pressed against the surface of the transport base 2, thereby preventing the hinge seat 33 from sliding on the surface of the transport base 2. A gasket or other structure can also be sleeved at the connection between the limiting rod 34 and the screw for reinforcement.

[0029] Working principle:

[0030] In use, the hinge seat 33 is pushed on the surface of the transport base 2, and the limiting rod 34 is deflected. The nut 4 is tightened on the screw surface of the hinge seat 33. The nut 4 presses the hinge seat 33 to fix the limiting rod 34. At the same time, the pressing block 5 presses and abuts against the surface of the transport base 2. The sleeve 38 is rotated. The sleeve 38 drives the threaded sleeve 39 to rotate on the surface of the lead screw 36. The lead screw 36 extends outward under the action of the threaded sleeve 39 and the insertion rod 35. The lead screw 36 drives the sling 3 and the counterweight 31 to extend outward. The sling 3 wrapped on the surface of the lead screw 36 is stretched outward with the rotation of the threaded sleeve 39, and the counterweight 31 falls.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A handling fixture for a coal mill, comprising a coal mill body (1), characterized in that: The lower surface of the coal mill body (1) is fixedly connected to a transport base (2), and a balancing mechanism is installed on the surface of the transport base (2). The balancing mechanism includes a sling (3), and a counterweight (31) is fixedly connected to the lower end of the sling (3). The lower outer side wall surface of the transport base (2) is provided with a sliding groove (21), the inner wall of the sliding groove (21) is slidably connected with a slider (32), the surface of the slider (32) is fixedly connected with a hinge seat (33), the inner wall of the hinge seat (33) is hinged with a limit rod (34) by a screw, and a limit groove is provided on one end surface of the limit rod (34). A rod (35) is slidably inserted into the inner wall of the limiting groove. A screw (36) is fixedly connected to the end surface of the rod (35). One end surface of the screw (36) is fixedly connected to the upper end of the sling (3). A limiting ring (37) is fixedly connected to the other end surface of the screw (36). The surface of the sling (3) is slidably inserted into the inner wall of the limiting ring (37).

2. The handling fixture for a coal mill according to claim 1, characterized in that: The outer surface of the limiting rod (34) is rotatably connected to a sleeve (38) via a bearing. A threaded sleeve (39) is fixedly connected to the inner wall of one end of the sleeve (38). The inner wall of the threaded sleeve (39) is threadedly connected to the surface of the lead screw (36).

3. The handling fixture for a coal mill according to claim 2, characterized in that: One end of the threaded sleeve (39) has a winding hole, and the surface of the sling (3) is slidably inserted into the inner wall of the winding hole.

4. The handling fixture for a coal mill according to claim 3, characterized in that: The upper surface of the hinge seat (33) is threaded with a nut (4) via a screw, and the lower surface of the nut (4) is fixedly connected with a pressing block (5). The lower end of the pressing block (5) is slidably sleeved with the surface of the screw.

Images