Fastening shaft sleeve for machining fan mandrel

Abstract

The utility model belongs to the technical field of fan mandrel machining, and particularly relates to a fastening shaft sleeve for fan mandrel machining, which comprises a sleeve, an up-and-down through inner groove is arranged at the center of the inner part of the sleeve, a clamping component is arranged at the lower part of the inner part of the inner groove, and a reinforcing component is arranged at the upper part of the inner part of the inner groove. A limiting assembly is arranged on the outer surface of the sleeve, the limiting assembly comprises a threaded groove formed in the upper portion of the outer surface of the sleeve, the outer surface of the threaded groove is in threaded connection with an inner threaded ring, and a limiting groove is formed in the inner threaded ring; a mandrel needing to be machined can be fastened through the clamping assembly in the sleeve, the fastening effect of the sleeve on the mandrel can be better through matched use of the limiting assembly, the reinforcing assembly and the clamping assembly, and the mandrel can be fastened through the sleeve only by rotating an inner thread ring of the limiting assembly; therefore, the fastening shaft sleeve is convenient to use and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan core shaft processing technical field, concretely is a kind of fastening shaft sleeve for fan core shaft processing. BACKGROUND

[0002] Fan core shaft is a core component in fan, main function is to connect motor and fan impeller, bear the function of power transmission.Alloy core shaft is generally cylindrical or conical, along the axial opening has through-hole, existing alloy core shaft is processed, is first processed outer circle, then processes inner hole, when processing inner hole, it needs to use shaft sleeve.Current shaft sleeve is all middle opening has an inner hole with the outer circle face of alloy core shaft adaptation, alloy core shaft is inserted into inner hole and fixed, but, the inner hole of this structure's shaft sleeve and alloy core shaft is only point contact or line contact, alloy core shaft will produce shaking when machine tool processes inner hole, affect the coaxiality between alloy core shaft inner hole and outer circle.

[0003] One patent of patent application CN222134755U discloses a kind of fastening shaft sleeve for fan core shaft processing, including: shaft sleeve body and tight clamp cover, the tight clamp cover is fixedly installed at one end of shaft sleeve body, and the outer diameter of tight clamp cover gradually decreases, and the outer end of tight clamp cover is threadedly connected with tight nut;By screwing tight nut on tight clamp cover, tight clamp cover is tightened, tight clamp cover is clamped to one end of core shaft by anti-slip pad, then by holding drive rod and rotating drive cylinder and moving towards the side of push rod, guide slope two will slide on guide slope one, inwardly push to guide slope one, let clamping plate and the inner wall of shaft sleeve body separate, and move to one side of core shaft, finally by rubber pad and the other end outer wall of core shaft tightly contact, so that core shaft is stably clamped, avoid that core shaft will produce shaking when processing core shaft.

[0004] However, existing fastening shaft sleeve needs to rotate tight nut before rotating drive cylinder when using to stably clamp core shaft, and make operation more complex, so that the fastening shaft sleeve is inconvenient to use, and the practicality is not strong enough, therefore, aiming at the above problems, a kind of fastening shaft sleeve for fan core shaft processing is presented. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiency of prior art, solve the problem that existing fastening shaft sleeve needs to rotate tight nut before rotating drive cylinder when using to stably clamp core shaft, and make operation more complex, so that the fastening shaft sleeve is inconvenient to use, and the practicality is not strong enough, the utility model presents a kind of fastening shaft sleeve for fan core shaft processing.

[0006] The utility model discloses a fastening shaft sleeve for fan core shaft machining which solves the technical problems, and the technical scheme is as follows: a sleeve is internally provided with an upper and lower through inner groove;

[0007] The inner groove is internally provided with a clamping assembly at the lower part, and is internally provided with a reinforcing assembly at the upper part.

[0008] The limiting assembly comprises a threaded groove formed on the upper part of the outer surface of the sleeve, the threaded groove is externally threadedly connected with an internal thread ring, the internal thread ring is internally formed with a limiting groove, the lower surface of the limiting groove is externally extended, the limiting groove is internally rotatably connected with a plurality of uniformly distributed limiting rods, the limiting rods are externally penetrated through the bottom of the internal thread ring, the bottom of the limiting rods is fixedly connected with a connecting rod, the bottom of the plurality of connecting rods is fixedly connected with a limiting ring, the limiting ring is sleeved on the outer surface of the sleeve, and the limiting ring is slidably connected with the sleeve.

[0009] Preferably, the clamping assembly comprises a plurality of uniformly distributed grooves formed at the lower part of the inner groove, a through groove is formed on one side of the groove, a fixed ring is fixedly connected on one side of the through groove, a clamping plate is slidably connected in the groove, a placing groove is formed on one side of the clamping plate, a clamping pad is fixedly connected in the placing groove, a spring is fixedly connected between the clamping plate and the fixed ring, a guide rod is fixedly connected on the other side of the clamping plate, one end of the guide rod is externally penetrated through the spring, and the guide rod is matched with the fixed ring.

[0010] Preferably, the reinforcing assembly comprises a plurality of uniformly distributed grooves formed at the upper part of the inner groove, a through hole is formed on one side of the groove, a sleeve ring is fixedly connected on one side of the through hole, a reinforcing plate is slidably connected in the groove, a spring is fixedly connected between the reinforcing plate and the sleeve ring, an installation groove is formed on one side of the reinforcing plate, a reinforcing pad is fixedly connected in the installation groove, an extrusion rod is fixedly connected on the other side of the reinforcing plate, and one end of the extrusion rod is externally penetrated through the spring and the sleeve ring.

[0011] Preferably, one side of the clamping plate, one side of the clamping pad and one side of the reinforcing plate, and one side of the reinforcing pad are all arranged in arc shape, the clamping pad and the reinforcing pad are both made of rubber material, and the bottom of the clamping plate is arranged in arc shape.

[0012] Preferably, one end of the extrusion rod and one end of the guide rod are both arranged in arc shape.

[0013] Preferably, the limiting groove and the limiting rod are both arranged in T shape.

[0014] Preferably, the outer surface of the internal thread ring is fixedly connected with a handle rod on the left side and the right side.

[0015] The utility model discloses the beneficial effect lies in:

[0016] 1. The utility model discloses a sleeve inside clamping assembly can be fastened to the mandrel of needing processing, and through the cooperation of limiting component and reinforcing component and clamping assembly can make the fastening effect of sleeve to mandrel better, and only need to rotate the internal thread ring of limiting component can make the sleeve can fasten to the mandrel, thereby make the fastening shaft sleeve convenient to use, and the practicality is stronger.

[0017] 2. The utility model discloses through the thread connection of internal thread ring and thread groove can make internal thread ring rotation moves, and internal thread ring can extrude the extruding rod after rotation moves, then the extruding rod is extruded and moves, and the movement of extruding rod can drive reinforcing pad and reinforcing pad to move, then reinforcing pad and reinforcing pad move and can clamp the mandrel outer surface inserted in the sleeve inside, and make the mandrel be fastened in the sleeve inside, and make the use effect of fastening shaft sleeve better. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0019] Figure 1 It is the schematic diagram of the partial section structure in embodiment one.

[0020] Figure 2 It is the schematic diagram of the partial section structure in embodiment one.

[0021] Figure 3 It is the schematic diagram of the partial section structure in embodiment one. Figure 2 It is the schematic diagram of the partial section structure in embodiment one.

[0022] Figure 4 It is the schematic diagram of the partial section structure in embodiment one. Figure 2 It is the schematic diagram of the partial section structure in embodiment one.

[0023] Figure 5 It is the schematic diagram of the partial section structure in embodiment one.

[0024] In the figure: 1, clamping assembly; 11, clamping plate; 12, clamping pad; 13, groove; 14, guide rod; 15, spring one; 16, fixed ring; 17, through slot; 2, limiting ring; 3, connecting rod; 4, sleeve; 5, reinforcing assembly; 51, reinforcing plate; 52, reinforcing pad; 53, sleeve ring; 54, extrusion rod; 55, spring two; 56, through hole; 57, slotted; 6, threaded groove; 7, internal thread ring; 8, limiting rod; 9, limiting groove; 10, handle. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment one

[0027] Please refer to Figures 1-4 As shown in the figure, a fastening shaft sleeve for fan core shaft machining, including sleeve 4, the inside center of sleeve 4 is provided with upper and lower through type inner groove;

[0028] The inner groove is provided with clamping assembly 1 below, and reinforcing assembly 5 is arranged above the inner groove, and the outer surface of sleeve 4 is provided with limiting assembly;

[0029] The limiting assembly includes threaded groove 6 arranged above the outer surface of sleeve 4, the outer surface of threaded groove 6 is threadedly connected with internal thread ring 7, the internal thread ring 7 is provided with limiting groove 9 inside, the lower surface of limiting groove 9 extends to the outside, a plurality of limiting rods 8 are rotatably connected to the inside of limiting groove 9 and are uniformly distributed, the bottom of limiting rod 8 penetrates the bottom of internal thread ring 7, the bottom of limiting rod 8 is fixedly connected with connecting rod 3, and limiting ring 2 is fixedly connected at the bottom of a plurality of connecting rods 3, limiting ring 2 is sleeved on the outer surface of sleeve 4, and limiting ring 2 is slidably connected with sleeve 4; when working, the clamping assembly 1 in the inside of sleeve 4 can fasten the core shaft to be machined, and the cooperation of limiting assembly, reinforcing assembly 5 and clamping assembly 1 can make the fastening effect of sleeve 4 on the core shaft better, and only by rotating the internal thread ring 7 of limiting assembly, the sleeve 4 can fasten the core shaft, so that the fastening shaft sleeve is convenient to use, has high practicability, and after the rotation of internal thread ring 7, the rotation connection of limiting rod 8 and limiting groove 9 can drive the movement of connecting rod 3, and after the movement of connecting rod 3, limiting ring 2 can be moved, then the limiting of reinforcing assembly 5 and clamping assembly 1 by internal thread ring 7 and limiting ring 2 respectively is carried out, so that the sleeve 4 can fasten the core shaft better.

[0030] The clamping assembly 1 includes a plurality of evenly distributed grooves 13 opened below the inner groove, a through groove 17 is opened on one side of the groove 13, a fixed ring 16 is fixedly connected on one side of the through groove 17, a clamping plate 11 is slidably connected in the groove 13, a placing groove is opened on one side of the clamping plate 11, a clamping pad 12 is fixedly connected in the placing groove, a spring 15 is fixedly connected between the clamping plate 11 and the fixed ring 16, a guide rod 14 is fixedly connected on the other side of the clamping plate 11, one end of the guide rod 14 penetrates through the spring 15, and the guide rod 14 is matched with the fixed ring 16; when the mandrel is inserted into the sleeve 4, the clamping plate 11 can be extruded, the guide rod 14 and the spring 15 are extruded after the clamping plate 11 is extruded, the guide rod 14 moves and penetrates through the fixed ring 16, and the rebound force of the extruded spring 15 can clamp and fasten the mandrel inserted into the sleeve 4 by the clamping plate 11 and the clamping pad 12, and the guide rod 14 can be abutted and limited by the limiting ring 2 after penetrating through the fixed ring 16, and the movement of the clamping plate 11 clamped mandrel during processing is avoided.

[0031] The reinforcing assembly 5 includes a plurality of evenly distributed grooves 57 opened above the inner groove, a through hole 56 is opened on one side of the groove 57, a sleeve ring 53 is fixedly connected on one side of the through hole 56, a reinforcing plate 51 is slidably connected in the groove 57, a spring 55 is fixedly connected between the reinforcing plate 51 and the sleeve ring 53, an installation groove is opened on one side of the reinforcing plate 51, a reinforcing pad 52 is fixedly connected in the installation groove, an extrusion rod 54 is fixedly connected on the other side of the reinforcing plate 51, and one end of the extrusion rod 54 penetrates through the spring 55 and the sleeve ring 53; during work, the threaded connection of the inner threaded ring 7 and the threaded groove 6 can make the inner threaded ring 7 rotate and move, the extrusion rod 54 can be extruded after the inner threaded ring 7 rotates and moves, the extrusion rod 54 moves after being extruded, the movement of the extrusion rod 54 can drive the reinforcing plate 51 and the reinforcing pad 52 to move, the reinforcing plate 51 and the reinforcing pad 52 can clamp the outer surface of the mandrel inserted into the sleeve 4 after moving, the mandrel is fastened in the sleeve 4, the use effect of the fastening shaft sleeve is better, the spring 55 is stretched when the reinforcing plate 51 moves, the spring 55 has a rebound force after being stretched, the reinforcing plate 51 is moved and reset to disengage the clamping and reinforcement of the mandrel, and the mandrel can be disassembled from the inside of the sleeve 4 after processing.

[0032] The side of the clamping plate 11 and the side of the clamping pad 12 and the side of the reinforcing plate 51 and the side of the reinforcing pad 52 are arranged in arc shape, the clamping pad 12 and the reinforcing pad 52 are made of rubber material, and the bottom of the clamping plate 11 is arranged in arc shape; during operation, the clamping plate 11 and the clamping pad 12 and the reinforcing plate 51 and the reinforcing pad 52 are convenient to adhere and fasten the core shaft, the rubber material of the clamping pad 12 and the reinforcing pad 52 has good anti-skid effect, and the arc-shaped bottom of the clamping plate 11 is convenient for clamping the extrusion and moving.

[0033] The end of the extrusion rod 54 and the end of the guide rod 14 are arranged in arc shape; during operation, the extrusion rod 54 is convenient to be extruded, and the end of the guide rod 14 is convenient to adhere to the inner side wall of the limiting ring 2 to make the limiting ring 2 limit the guide rod 14.

[0034] The limiting slot 9 and the limiting rod 8 are arranged in T shape; during operation, the limiting rod 8 is inserted into the limiting slot 9 and cannot be separated, and the limiting rod 8 can stably rotate in the limiting slot 9.

[0035] Embodiment two

[0036] Please refer to Figure 5 As another embodiment of the utility model, the inner thread ring 7 is fixedly connected with the handle 10 on the left and right sides of the outer surface, compared with embodiment one; during operation, the handle 10 is convenient for the rotation of the inner thread ring 7.

[0037] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The basic principles, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A fastening sleeve for fan hub machining, comprising a sleeve (4), an upper and lower through inner groove is formed in the center of the inside of the sleeve (4); characterized in that A clamping assembly (1) is arranged below the inside of the inner groove, a reinforcing assembly (5) is arranged above the inside of the inner groove, and a limiting assembly is arranged on the outer surface of the sleeve (4); The limiting assembly comprises a threaded groove (6) formed above the outer surface of the sleeve (4), an internal threaded ring (7) is threadedly connected to the outer surface of the threaded groove (6), a limiting groove (9) is formed in the inside of the internal threaded ring (7), the lower surface of the limiting groove (9) extends to the outside, a plurality of uniformly distributed limiting rods (8) are rotatably connected to the inside of the limiting groove (9), the limiting rods (8) penetrate through the bottom of the internal threaded ring (7), a connecting rod (3) is fixedly connected to the bottom end of the limiting rod (8), a plurality of connecting rods (3) are fixedly connected to a limiting ring (2) at the bottom, the limiting ring (2) is sleeved on the outer surface of the sleeve (4), and the limiting ring (2) is slidably connected with the sleeve (4).

2. The fastening sleeve for processing the hub of a fan according to claim 1, characterized in that: The clamping assembly (1) comprises a plurality of uniformly distributed grooves (13) formed below the inside of the inner groove, a through groove (17) is formed in one side of the inside of the groove (13), a fixed ring (16) is fixedly connected to one side of the inside of the through groove (17), a clamping plate (11) is slidably connected to the inside of the groove (13), a placing groove is formed in one side of the clamping plate (11), a clamping pad (12) is fixedly connected to the inside of the placing groove, a spring (15) is fixedly connected between the clamping plate (11) and the fixed ring (16), a guide rod (14) is fixedly connected to the other side of the clamping plate (11), one end of the guide rod (14) penetrates through the spring (15), and the guide rod (14) is matched with the fixed ring (16).

3. The fastening sleeve for processing the fan hub according to claim 2, characterized in that: The reinforcing assembly (5) comprises a plurality of uniformly distributed grooves (57) formed above the inside of the inner groove, a through hole (56) is formed in one side of the inside of the groove (57), a sleeve ring (53) is fixedly connected to one side of the inside of the through hole (56), a reinforcing plate (51) is slidably connected to the inside of the groove (57), a spring (55) is fixedly connected between the reinforcing plate (51) and the sleeve ring (53), an installation groove is formed in one side of the reinforcing plate (51), a reinforcing pad (52) is fixedly connected to the inside of the installation groove, and an extrusion rod (54) is fixedly connected to the other side of the reinforcing plate (51), one end of the extrusion rod (54) penetrates through the spring (55) and the sleeve ring (53).

4. The fastening sleeve for processing the fan hub according to claim 3, characterized in that: One side of the clamping plate (11) and one side of the clamping pad (12) and one side of the reinforcing plate (51) and one side of the reinforcing pad (52) are all arranged in arc shape, the clamping pad (12) and the reinforcing pad (52) are both made of rubber material, and the bottom of the clamping plate (11) is arranged in arc shape.

5. A fastening sleeve for fan hub machining according to claim 4, characterized in that: One end of the extrusion rod (54) and one end of the guide rod (14) are both arranged in arc shape.

6. A fastening sleeve for fan hub machining according to claim 5, characterized in that: The limiting groove (9) and the limiting rod (8) are both arranged in T shape.

7. A fastening sleeve for fan hub machining according to claim 6, characterized in that: The outer surface of the internal threaded ring (7) is fixedly connected with handle rods (10) on the left and right sides.

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