Large motor cooling fan impeller and bearing dismounting puller tool

Abstract

The utility model relates to a large motor cooling fan impeller and bearing dismounting puller tool which comprises a fixing support, adjustable grooves are symmetrically formed in the left side and the right side of the fixing support, and the upper ends of fixing rods are movably inserted into the adjustable grooves; and the puller disc is provided with two parts, and the outer side of the puller disc is fixedly connected to the lower side of the fixing rod through a bolt. According to the equipment provided by the embodiment of the invention, when the position of the code pulling disc is adjusted, a locking nut on a reinforcing screw rod is screwed, then a fixing bolt is unscrewed, so that the upper end of a fixing rod can move left and right in an adjustable groove, and after the position of the code pulling disc is adjusted, the position of the fixing rod is positioned by screwing the fixing bolt; then all the locking nuts are fastened through a tool, bearings and impellers of different sizes can be adapted by adjusting the position of the code pulling disc, the disc code disc is adopted to make contact with a real object, the contact area is increased, and it is guaranteed that the object is evenly stressed.

Description

Technical Field

[0001] The present application relates to the technical field of disassembly of impellers and bearings of large motor cooling fans, and in particular to a disassembly and pulling tool for impellers and bearings of large motor cooling fans. Background Art

[0002] Large motors all use external cooling fans to cool the motors. The motor bearings use sealed maintenance-free bearings, and it is not possible to refuel, inspect, or perform other maintenance on the motor bearings on a daily basis. When the motors run for a long time, the bearings may be short of oil, worn, or otherwise abnormal, and the motor bearings need to be replaced.

[0003] The front shaft of the motor is connected to the impeller, and there is no place to pull the impeller using the traditional puller. At the same time, the impeller is made of a soft alloy material. Existing maintenance personnel use tools such as crowbars and hammers to knock and disassemble the impeller, which causes damage and deformation of the impeller body, is time-consuming and labor-intensive, and the dynamic balance is unbalanced after installation. There is a large vibration during operation, and the motor bearings and sleeves are worn, and the temperature rises, affecting the normal operation of the fan. Therefore, we proposed a large motor cooling fan impeller and bearing removal puller tooling. Utility Model Content

[0004] The present application provides a large motor cooling fan impeller, bearing disassembly and pulling tool to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a large motor cooling fan impeller, bearing disassembly and pulling tool, including:

[0006] A fixed bracket, wherein the fixed bracket has adjustable slots symmetrically opened on the left and right sides, and the upper end of the fixed rod is movably inserted into the adjustable slot;

[0007] The puller plate is provided with two parts, the outer side of the puller plate is fixedly connected to the lower side of the fixing rod by bolts, and reinforcing screws are movably inserted on the upper and lower sides of the puller plate.

[0008] Optionally, the upper end of the fixed bracket is rotatably connected to the threaded propulsion rod through a bearing, a threaded tube is connected to the outer side of the threaded propulsion rod through a threaded sleeve, and the threaded tube is fixed to an external fixed object, and a handle is also provided at the upper end of the threaded propulsion rod.

[0009] Optionally, the right side cross-section of the adjustable slot is T-shaped.

[0010] Optionally, the upper ends of the fixing rods are connected with fixing bolts, and the fixing bolts pass through the adjustable slots transversely.

[0011] Optionally, circular holes are symmetrically opened on the outer sides of the puller plates, the bolts are inserted through the circular holes, and the ends of the bolts are inserted on the fixing rods by threaded fastening.

[0012] Optionally, both left and right sides of the reinforcing screw are threadedly connected with locking nuts.

[0013] Optionally, the fixing rod is a rod with adjustable length.

[0014] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0015] The device provided in the embodiment of the present application can adjust the position of the code pull disk by screwing the locking nut on the reinforcing screw so that the code pull disk can move freely left and right, and then loosen the fixing bolt so that the upper end of the fixing rod can move left and right inside the adjustable groove, thereby adjusting the position of the fixing rod and adjusting the positions of the two code pull disks. After the position of the code pull disk is adjusted, the fixing bolt is tightened to locate the position of the fixing rod, and then the locking nuts are tightened by tools so that the reinforcing screw can locate the strength of the upper and lower sides of the code pull disk. By adjusting the position of the code pull disk, bearings and impellers of different sizes can be used, and the disc-shaped code disk is used to contact the actual object, which increases the contact area and ensures that the object is evenly stressed, avoiding damage to the object due to uneven force. The code pull uses an adjustable bolt as a power point, which is easy and effortless to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is the overall structure diagram of a large motor cooling fan impeller, bearing removal and pulling tooling;

[0019] Figure 2 This is the overall structure diagram of a large motor cooling fan impeller, bearing removal and pulling tooling.

[0020] In the figure: 1. threaded push rod; 2. adjustable slot; 3. fixing rod; 4. reinforcing screw; 5. puller plate; 6. round hole; 7. fixing bracket; 8. fixing bolt; 9. locking nut; 10. bolt. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] Various embodiments of the present application may exist in the form of a range. It should be understood that the description in the form of a range is only for convenience and simplicity and should not be understood as a hard limit to the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which are applicable regardless of the range. In addition, whenever a numerical range is indicated in the present application, it is meant to include any quoted numbers (fractions or integers) within the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application, etc., can be purchased from the market or can be prepared by existing methods.

[0023] In the present application, in the absence of any contrary description, the directional words used, such as "upper" and "lower", are specifically the directions of the drawings in the accompanying drawings. In addition, in the present application, the terms "include", "comprise", etc. refer to "including but not limited to". In the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. Wherein A, B can be singular or plural. In the present application, "at least one" refers to one or more, and "plural" refers to two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular items or plural items. For example, "at least one of a, b, or c" or "at least one of a, b and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc or abc, where a, b, c can be single or plural, respectively.

[0024] like Figure 1-Figure 2As shown, the embodiment of the present application provides a large motor cooling fan impeller, bearing disassembly and pulling tool, including:

[0025] A fixed bracket 7, wherein the fixed bracket 7 has adjustable slots 2 symmetrically formed on the left and right sides, and the upper end of the fixed rod 3 is movably inserted into the adjustable slot 2;

[0026] The puller plate 5 is provided with two parts. The outer side of the puller plate 5 is fixedly connected to the lower side of the fixing rod 3 by means of bolts 10 , and reinforcing screw rods 4 are movably inserted on the upper and lower sides of the puller plate 5 .

[0027] Specifically: the puller plate 5 adopts the existing puller plate on the market.

[0028] like Figure 2 As shown: the upper end of the fixed bracket 7 is rotatably connected to the threaded propulsion rod 1 through a bearing, the outer side of the threaded propulsion rod 1 is connected with a threaded tube through a threaded sleeve, and the threaded tube is fixed to an external fixed object, and the upper end of the threaded propulsion rod 1 is also provided with a handle.

[0029] Specifically, the threaded push rod 1 can move up and down when rotating forward and reverse, thereby causing the fixed bracket 7 and the lower connecting structure to move up and down, and the setting of the bearing prevents the fixed bracket 7 from rotating with the rotation of the threaded push rod 1.

[0030] like Figure 2 As shown: the right side cross section of the adjustable slot 2 is in a T shape.

[0031] Specifically, the fixing rod 3 is inserted into the middle of the adjustable slot 2, and the fixing bolts 8 are inserted into the front and rear.

[0032] like Figure 1 As shown: the upper ends of the fixing rods 3 are all inserted with fixing bolts 8, and the fixing bolts 8 pass through the adjustable slots 2 horizontally.

[0033] Specifically, when the fixing bolt 8 is tightened, the position of the fixing rod 3 inside the adjustable slot 2 can be positioned.

[0034] like Figure 1 and Figure 2 As shown, the outer side of the puller plate 5 is symmetrically provided with round holes 6, the bolts 10 are inserted through the round holes 6, and the ends of the bolts 10 are inserted on the fixing rod 3 by threaded fastening.

[0035] Specifically, the round holes 6 are used to insert the bolts 10 , so as to fix the two puller plates 5 on the corresponding fixing rods 3 .

[0036] like Figure 2 As shown: the left and right sides of the reinforcing screw rod 4 are both threadedly connected with locking nuts 9.

[0037] Specifically, after the locking nut 9 is tightened, the strength of the upper and lower sides of the reinforcement screw 4 for positioning and processing the code pull plate 5 can be enhanced.

[0038] like Figure 1 As shown: the fixed rod 3 is a rod with adjustable length.

[0039] Specifically, the fixed rod 3 adopts the existing length adjustment structure on the market, which is the existing technology. It can be adjusted by plugging the rods together and fixing them with screws, and the fixed rod 3 can also be disassembled and replaced, so that it can be replaced with a rod of appropriate length.

[0040] When the equipment is in use, the code puller 5 is made of two semicircular shapes, and the contact surface on the front side is conical, which can be suitable for grooves of different widths and thicknesses, and can match different couplings. When adjusting the position of the code puller 5, the locking nut 9 on the reinforcing screw 4 is screwed so that the code puller 5 can be freely displaced left and right, and then the fixing bolt 8 is loosened so that the upper end of the fixing rod 3 can be displaced left and right inside the adjustable groove 2, thereby adjusting the position of the fixing rod 3 and adjusting the positions of the two code pullers 5. After the position of the code puller 5 is adjusted, the fixing bolt 8 is tightened to position the fixing rod 3, and then the locking nuts 9 are tightened by tools, so that the reinforcing screw 4 can position the strength of the upper and lower sides of the code puller 5. By adjusting the position of the code puller 5, bearings and impellers of different sizes can be used.

[0041] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. It will be apparent to those skilled in the art that various modifications to these embodiments are possible, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features applied for by the present application.

Claims

1. A large motor cooling fan impeller, bearing disassembly and pulling tool, characterized in that: include: A fixed bracket (7), wherein the fixed bracket (7) has adjustable slots (2) symmetrically formed on the left and right sides, and the upper end of the fixed rod (3) is movably inserted into the adjustable slot (2); A puller plate (5), the puller plate (5) is provided with two parts, the outer side of the puller plate (5) is fixedly connected to the lower side of the fixing rod (3) by means of bolts (10), and reinforcing screw rods (4) are movably inserted on the upper and lower sides of the puller plate (5).

2. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 1 is characterized by: The upper end of the fixed bracket (7) is rotatably connected to the threaded propulsion rod (1) through a bearing, and a threaded tube is sleeved on the outer side of the threaded propulsion rod (1) through a thread, and the threaded tube is fixed to an external fixed object. A handle is also provided at the upper end of the threaded propulsion rod (1).

3. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 2 is characterized by: The right side cross-section of the adjustable slot (2) is in a T shape.

4. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 1 is characterized by: The upper ends of the fixing rods (3) are all plugged with fixing bolts (8), and the fixing bolts (8) penetrate the adjustable slots (2) transversely.

5. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 1 is characterized by: The outer side of the puller plate (5) is symmetrically provided with circular holes (6), the bolts (10) are inserted through the circular holes (6), and the ends of the bolts (10) are inserted into the fixing rod (3) by threaded fastening.

6. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 5 is characterized by: The left and right sides of the reinforcing screw rod (4) are both threadedly sleeved with locking nuts (9).

7. The large motor cooling fan impeller and bearing disassembly and pulling tool according to claim 1 is characterized by: The fixing rod (3) is a rod with adjustable length.

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