Roller dismounting device

Abstract

The utility model discloses a roller dismounting device which comprises a fixing handle, two ratchet wheels are fixedly connected to the fixing handle, a positioning lantern ring is fixedly connected between inner rings of the two ratchet wheels, a nut sleeve is detachably arranged in the positioning lantern ring, and outer rings of the two ratchet wheels freely rotate in one direction. An empty groove is formed in the positioning lantern ring, and a positioning mechanism is installed in the empty groove. The nut sleeve is positioned and clamped through the positioning mechanism, assembling and disassembling operation is very flexible, during operation, the nut sleeve is arranged on the outer side of the bolt in a sleeving mode, then the fixing handle is pushed to rotate in the direction opposite to the rotating direction of the ratchet wheel, the nut sleeve can be driven to rotate to disassemble the bolt, and when the space is small, the nut sleeve can be disassembled by means of the one-way rotating characteristic of the ratchet wheel. Small-angle repeated operation can be achieved, and therefore the device has the advantages of being compact in structure, modular in combination, suitable for dismounting rollers of different specifications and more convenient to operate in a small space.

Description

Technical Field

[0001] The utility model relates to the technical field of roller assembly and disassembly, and more particularly to a roller disassembly device. Background Art

[0002] Rollers are typically cylindrical, slender rods with a specific diameter and length, and their surfaces are required to be smooth and wear-resistant. For example, in some combing machines, the diameter of the rollers may range from 20 to 50 mm, and the length, depending on the working width of the comber, may vary from tens of centimeters to several meters. Rollers are generally made of high-quality metal materials, such as steel. To improve their wear resistance and surface finish, the roller surface may undergo special treatments, such as chrome plating. Chrome plating increases the surface hardness of the rollers, making them more resistant to friction and wear with the fibers. The chrome plating also makes the roller surface smoother, reducing damage to the fibers.

[0003] When disassembling the rollers, locate the bolts at each end or at the mounting points. Use a suitable wrench to loosen the bolts in a diagonal order. This prevents deformation of the rollers due to uneven force during disassembly. For example, if there are four bolts at each end of the roller, loosen the bolt at the top left first, then the bolt at the bottom right, then the bolts at the top right and bottom left, and so on, until all bolts are loosened.

[0004] However, due to the lack of a unified installation standard for rollers, the bolt specifications used are different. The current disassembly device specifications are relatively single, making it difficult to disassemble rollers of different models. This requires the equipment and use of multiple disassembly devices. At the same time, the installation gap of the roller is small, and traditional disassembly devices such as wrenches are very inconvenient to operate. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a roller disassembly device to solve the background technical problems.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A roller disassembly device includes a fixed handle, two ratchets are fixedly connected to the fixed handle, a positioning collar is fixedly connected between the inner rings of the two ratchets, a nut sleeve is detachably provided inside the positioning collar, the outer rings of the two ratchets are free to rotate in one direction, an empty groove is opened on the positioning collar, a positioning mechanism is installed inside the empty groove, and the positioning mechanism is used to position the nut sleeve.

[0008] As a further description of the above technical solution: the positioning mechanism includes a clip-shaped buckle plate, a clamping rod and a spring. The bottom of the clip-shaped buckle plate is fixedly connected to the clamping rod. The bottom end of the clamping rod passes downward through the positioning ring and is movably connected to the outer side of the nut sleeve. The top of the spring is fixedly connected to the clip-shaped buckle plate, and the bottom end of the spring is fixedly connected to the inner wall of the empty slot.

[0009] As a further description of the above technical solution: the nut sleeve is prefabricated with various inner diameter specifications.

[0010] As a further description of the above technical solution: the outer side of the nut sleeve is fixedly connected with positioning blocks arranged at equal distances, and the outer sides of the positioning blocks are clamped to the inner wall of the positioning collar.

[0011] As a further description of the above technical solution: a rubber sleeve is fixedly connected to the outer side of the fixed handle.

[0012] As a further description of the above technical solution: the outer side of the nut sleeve is provided with equidistantly arranged clamping holes, and the clamping holes are plugged into and matched with the clamping rod.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution uses a modular, removable and replaceable nut sleeve in combination with a ratchet and a fixed handle to achieve small-angle operation, thereby achieving the advantages of a compact structure, modular combination, applicability for disassembly of rollers of different specifications, and more convenient operation in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a partial three-dimensional structural diagram of the utility model;

[0017] Figure 3 This is a side structural diagram of the present utility model;

[0018] Figure 4 It is a partial front view cross-sectional structural schematic diagram of the present invention.

[0019] Description of the numbers in the figure:

[0020] 1. Fixing handle; 2. Positioning collar; 3. Nut sleeve; 31. Positioning block; 32. Clamping hole; 4. Ratchet; 5. Empty slot; 6. Positioning mechanism; 61. Clip plate; 62. Clamping rod; 63. Spring; 7. Rubber sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-4 A roller disassembly device includes a fixed handle 1, two ratchets 4 are fixedly connected to the fixed handle 1, a positioning collar 2 is fixedly connected between the inner rings of the two ratchets 4, a nut sleeve 3 is detachably provided inside the positioning collar 2, the outer rings of the two ratchets 4 are free to rotate in one direction, an empty slot 5 is opened on the positioning collar 2, a positioning mechanism 6 is installed inside the empty slot 5, and the positioning mechanism 6 is used to position the nut sleeve 3.

[0023] When the nut sleeve 3 is inserted into the inner part of the positioning collar 2, the nut sleeve 3 is positioned and clamped by the positioning mechanism 6. The loading and unloading operations are very flexible. During operation, the nut sleeve 3 is put on the outside of the bolt, and then the fixing handle 1 is pushed to rotate in the opposite direction of the rotation of the ratchet 4, which can drive the nut sleeve 3 to rotate to remove the bolt. When the space is small, the unidirectional rotation characteristic of the ratchet 4 can be used to achieve repeated operation at a small angle, thereby realizing the advantages of compact structure, modular combination, and suitability for the disassembly of rollers of different specifications and more convenient operation in a small space. This solves the problem that the specifications of the disassembly device in the prior art are relatively single and difficult to apply to the disassembly of rollers of different models, which leads to the need to equip and use multiple disassembly devices. At the same time, the installation gap of the roller is small, and traditional disassembly devices such as wrenches are very inconvenient to operate.

[0024] See also Figure 4 , wherein: the positioning mechanism 6 includes a circular buckle plate 61, a clamping rod 62 and a spring 63. The bottom of the circular buckle plate 61 is fixedly connected to the clamping rod 62. The bottom end of the clamping rod 62 passes downward through the positioning collar 2 and is movably connected to the outer side of the nut sleeve 3. The top of the spring 63 is fixedly connected to the circular buckle plate 61, and the bottom end of the spring 63 is fixedly connected to the inner wall of the slot 5.

[0025] In the present invention, the clip plate 61 is pulled up by fingers to drive the clamping rod 62 to stretch the spring 63, so that the clamping rod 62 is separated from the nut sleeve 3, and the replacement can be achieved, which is easy to operate.

[0026] See also Figure 2 , wherein: the nut sleeve 3 is prefabricated with various inner diameter specifications.

[0027] In the present invention, the nut sleeve 3 is prefabricated with various inner diameter specifications, so that it can be flexibly replaced when disassembling bolts of different specifications.

[0028] See also Figure 2 、 Figure 3 and Figure 4 , wherein: the outer side of the nut sleeve 3 is fixedly connected with positioning blocks 31 arranged at equal distances, and the outer side of the positioning blocks 31 is clamped to the inner wall of the positioning collar 2.

[0029] In the present invention, the positioning block 31 makes the positioning effect between the positioning collar 2 and the nut sleeve 3 better, thereby ensuring the disassembly operation.

[0030] See also Figure 1 and Figure 3 , wherein: a rubber sleeve 7 is fixedly connected to the outer side of the fixed handle 1.

[0031] In the present invention, the rubber sleeve 7 makes it easy to hold and fix the handle 1 so that it is not easy to get loose.

[0032] See also Figure 2 and Figure 4 , wherein: the outer side of the nut sleeve 3 is provided with equally spaced clamping holes 32 , which are plugged into and matched with the clamping rod 62 .

[0033] In the present invention, the equidistantly arranged clamping holes 32 cooperate with the positioning block 31, so that no calibration is required during installation, and the upward clamping holes 32 are always kept in alignment with the clamping rod 62, which is efficient and convenient.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A roller disassembly device, comprising a fixing handle (1), characterized in that: Two ratchets (4) are fixedly connected to the fixing handle (1); a positioning collar (2) is fixedly connected between the inner rings of the two ratchets (4); a nut sleeve (3) is detachably provided inside the positioning collar (2); the outer rings of the two ratchets (4) are free to rotate in one direction; an empty slot (5) is provided on the positioning collar (2); a positioning mechanism (6) is installed inside the empty slot (5); and the positioning mechanism (6) is used to position the nut sleeve (3).

2. A roller disassembly device according to claim 1, characterized in that: The positioning mechanism (6) includes a circular buckle plate (61), a clamping rod (62) and a spring (63). The bottom of the circular buckle plate (61) is fixedly connected to the clamping rod (62). The bottom end of the clamping rod (62) passes through the positioning collar (2) downward and is movably connected to the outer side of the nut sleeve (3). The top of the spring (63) is fixedly connected to the circular buckle plate (61), and the bottom end of the spring (63) is fixedly connected to the inner wall of the slot (5).

3. The roller disassembly device according to claim 1, characterized in that: The nut sleeve (3) is prefabricated with various inner diameter specifications.

4. The roller disassembly device according to claim 1, characterized in that: The outer side of the nut sleeve (3) is fixedly connected with positioning blocks (31) arranged at equal distances, and the outer side of the positioning blocks (31) is clamped to the inner wall of the positioning collar (2).

5. The roller disassembly device according to claim 1, characterized in that: The outer side of the fixing handle (1) is fixedly connected with a rubber sleeve (7).

6. The roller disassembly device according to claim 2, characterized in that: The outer side of the nut sleeve (3) is provided with equidistantly arranged clamping holes (32), and the clamping holes (32) are plugged into and matched with the clamping rod (62).

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