Motor shaft sleeve assembling device

Abstract

The utility model discloses a motor shaft sleeve assembling device, and belongs to the field of motor shaft sleeve assembling. A motor shaft sleeve assembling device comprises an operation table, and further comprises a positioning sleeve with a clamping function, and the positioning sleeve slides in the long axis direction of the operation table; wherein a driving part for pushing the positioning sleeve to slide and a shaft sleeve seat fixed on the end face of the operating table are arranged on the operating table, and a heating part for preheating the shaft sleeve is arranged on the shaft sleeve seat; wherein a placing groove is formed in the top of the shaft sleeve seat, and the central axis of the shaft sleeve seat coincides with the central axis of the positioning sleeve; the inner wall of the shaft sleeve placed in the placing groove is preheated through the electric heating wire, excessive loss of heat is avoided, operation safety is improved, the inner diameter of the shaft sleeve can be expanded to a certain extent according to the principle of thermal expansion and cold contraction, a rotating shaft of a motor can be inserted into the shaft sleeve conveniently, and operation is convenient. And finally, the shaft sleeve can be stably fixed on the motor rotating shaft after being cooled, so that the shaft sleeve mounting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shaft sleeve assembly, in particular to a motor shaft sleeve assembly device. Background Art

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction. Its main function is to convert mechanical energy into electrical energy to generate driving torque. It serves as a power source for electrical appliances or various machines. The motor shaft is the actuator driven by the motor, and the motor shaft sleeve is mounted on the motor shaft to play a protective role.

[0003] A motor shaft sleeve assembly device with the publication number of "CN219986756U" comprises a workbench; a No. 1 slide rail is installed on the workbench, a driving motor is installed on the No. 1 slide block, an extrusion plate is provided on the threaded hole through the limit plate at the end of the driving screw, a heating resistor is installed on the No. 2 slide block, a limit cylinder is provided on the No. 2 slide block, four heating plates are installed on the inner wall of the limit cylinder, and two clamping plates are symmetrically provided on the side of the vertical plate. According to the principle of thermal expansion and contraction, the shaft sleeve will expand slightly, and when the driving screw rotates, it will extend to one side of the vertical plate through the threaded hole provided in the limit plate, and the shaft sleeve will be fixed on the motor shaft with the pressure of the extrusion plate, and after the shaft sleeve is cooled, the shaft sleeve will shrink and be fixed on the motor shaft, thereby realizing the effect of expanding the inner diameter of the shaft sleeve after heating. Compared with the traditional motor shaft sleeve assembly device, it is more convenient to install and effectively avoids damage to the shaft sleeve caused by violent installation.

[0004] The above existing patents still have the following shortcomings: the heating part is completely exposed to the outside, and the heat will be dissipated too much, resulting in reduced heating effect, increased energy consumption, and wasted resources. In addition, there is a risk of accidental contact by operators, which is dangerous. The clamping part only relies on the two side plates, and the motor is generally cylindrical. The clamping effect brought by the two side plates is average. In the subsequent sleeve extrusion process, there will be insufficient stability. Therefore, a motor sleeve assembly device is proposed. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art that the preheating heat will be excessively dissipated outwards, resulting in increased energy consumption and certain dangers; and the clamping effect on the motor is average, and proposes a motor shaft sleeve assembly device.

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

[0007] A motor shaft sleeve assembly device includes an operating table, and also includes: a positioning sleeve with a clamping function, the positioning sleeve slides along the long axis direction of the operating table; wherein the operating table is provided with a driving part for pushing the positioning sleeve to slide, and a shaft sleeve seat is fixed to the end surface of the operating table, and the shaft sleeve seat is provided with a heating part for preheating the shaft sleeve; wherein a placement groove is provided on the top of the shaft sleeve seat, and the central axis of the shaft sleeve seat coincides with the central axis of the positioning sleeve.

[0008] In order to facilitate positioning and fixing, preferably, electric push rods are fixedly connected to the outer wall of the positioning sleeve on all sides, and the telescopic end of the electric push rod passes through the positioning sleeve and is fixedly connected to a clamping block.

[0009] Furthermore, the extension lines of the telescopic ends of the four electric push rods intersect on the central axis of the positioning sleeve.

[0010] To facilitate assembly, preferably, the driving part includes a reciprocating screw, a sliding groove is opened on the end surface of the operating table, the reciprocating screw is rotatably connected inside the sliding groove, the side wall of the operating table is fixedly connected with a servo motor, the rotating shaft of the servo motor is fixedly connected to the end of the reciprocating screw, the side wall of the reciprocating screw is slidably connected with a limiting slider, the top of the limiting slider is fixedly connected to the bottom of the positioning sleeve, and the side wall of the limiting slider slides in contact with the inner wall of the sliding groove.

[0011] Furthermore, the heating part includes a heating wire, a heating groove is opened inside the sleeve seat, and the heating groove is connected to the inner cavity of the placement groove, the heating wire is fixedly connected in the heating groove, and a current box is fixedly connected to the side wall of the sleeve seat, and the current box and the heating wire are electrically connected.

[0012] Preferably, a sealing cover is rotatably connected to the top of the placement groove.

[0013] Compared with the prior art, the utility model provides a motor shaft sleeve assembly device, which has the following beneficial effects:

[0014] 1. The motor sleeve assembly device preheats the inner wall of the sleeve placed in the placement groove through the electric heating wire, which avoids excessive heat loss and improves the safety of operation. At this time, according to the principle of thermal expansion and contraction, the inner diameter of the sleeve will expand to a certain extent. At this time, the motor shaft can be easily inserted into the sleeve. Finally, after the sleeve is cooled, it will be firmly fixed on the motor shaft, which improves the installation effect of the sleeve.

[0015] 2. The motor sleeve assembly device stably clamps the motor in the positioning sleeve by extending the electric push rods on all sides, thereby ensuring the stability of the motor and positioning it in the center of the positioning sleeve, thereby improving the accuracy of the sleeve installation and being applicable to motors of different diameters, thereby increasing the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a motor shaft sleeve assembly device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a motor shaft sleeve assembly device proposed by the utility model from a side view;

[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of a motor shaft sleeve assembly device proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the inner structure of a positioning sleeve of a motor shaft sleeve assembly device.

[0020] In the figure: 1. operating table; 2. positioning sleeve; 21. electric push rod; 22. clamping block; 3. shaft sleeve seat; 31. placement groove; 4. reciprocating screw rod; 41. sliding groove; 42. servo motor; 43. limit slider; 5. heating wire; 51. heating groove; 52. current box; 6. sealing cover. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 4A motor sleeve assembly device includes an operating table 1, and also includes: a positioning sleeve 2 with a clamping function, the positioning sleeve 2 is used to fix the motor shaft part, and the positioning sleeve 2 slides along the long axis direction of the operating table 1; wherein, the operating table 1 is provided with a driving part for pushing the positioning sleeve 2 to slide, and a sleeve seat 3 is fixed on the end face of the operating table 1, and a placement groove 31 is opened on the top of the sleeve seat 3, and the placement groove 31 is used to load the sleeve, and the fixed motor shaft part is pushed by the driving part to apply thrust and then inserted into the placement groove 31 to realize the installation of the sleeve; a heating part for preheating the sleeve is provided on the sleeve seat 3, and the heating part is used to preheat the sleeve to make it expand slightly, so as to facilitate subsequent installation, wherein the central axis of the sleeve seat 3 coincides with the central axis of the positioning sleeve 2.

[0025] Reference Figure 4 In this embodiment, electric push rods 21 are fixedly connected to the outer wall of the positioning sleeve 2 all around, and the telescopic ends of the electric push rods 21 penetrate into the positioning sleeve 2 and are fixedly connected to the clamping blocks 22, and the clamping blocks 22 are arranged in an arc shape, and the extension lines of the telescopic ends of the four electric push rods 21 intersect on the central axis of the positioning sleeve 2. The motor to be installed with the sleeve is placed inside the positioning sleeve 2, and then the electric push rods 21 on all sides are opened at the same time. The ends of the electric push rods 21 will approach the side walls of the motor at the same time to clamp the motor, thereby ensuring the stability of the motor and positioning it in the center of the positioning sleeve 2, thereby improving the accuracy of the sleeve installation, and being applicable to motors of different diameters, thereby improving the scope of application of the device.

[0026] Reference Figure 3 , Figure 4 In this embodiment, the driving part includes a reciprocating screw rod 4, a sliding groove 41 is opened on the end surface of the operating table 1, the reciprocating screw rod 4 is rotatably connected inside the sliding groove 41, and a servo motor 42 is fixedly connected to the side wall of the operating table 1. The rotating shaft of the servo motor 42 is fixedly connected to the end of the reciprocating screw rod 4, and the side wall of the reciprocating screw rod 4 is slidably connected to a limiting slider 43, the top of the limiting slider 43 is fixedly connected to the bottom of the positioning sleeve 2, and the side wall of the limiting slider 43 is fitted and slid with the inner wall of the sliding groove 41; as described above, when the shaft sleeve motor to be installed is fixed on the positioning sleeve 2 After that, turn on the servo motor 42 to drive the reciprocating screw 4 to rotate, so that the limit slider 43 slides with the positioning sleeve 2 along the sliding groove 41, so that the motor shaft of the sleeve to be installed is inserted into the sleeve seat 3, and under the thrust generated by the continuous rotation of the reciprocating screw 4, the sleeve connection between the sleeve and the shaft is fixed, and because the side wall of the limit slider 43 fits with the inner wall of the sliding groove 41, the sliding of the positioning sleeve 2 can be limited, so that it can be stably aligned with the center of the sleeve and move, thereby improving the accuracy of the assembly of the device.

[0027] Reference Figure 2 , Figure 3In this embodiment, the heating part includes a heating wire 5, a heating groove 51 is provided inside the sleeve seat 3, and the heating groove 51 is communicated with the inner cavity of the placement groove 31, the heating wire 5 is fixedly connected in the heating groove 51, a current box 52 is fixedly connected to the side wall of the sleeve seat 3, and the current box 52 is electrically connected to the heating wire 5, and a sealing cover 6 is rotatably connected to the top of the placement groove 31, and the sealing cover 6 is used to close the top of the placement groove 31 to prevent excessive heat dissipation; as described above, the sleeve to be installed is placed in the placement groove 31, and then the sealing cover 6 is closed. The current box 52 is energized to the heating wire 5, so that the heating wire 5 is energized and heated, and the heat flows into the placement groove 31 to preheat the inner wall of the sleeve. According to the principle of thermal expansion and contraction, the sleeve will expand slightly due to the heat. At this time, the inner diameter of the sleeve will expand to a certain extent after heating. Then, the motor shaft to be installed with the sleeve will be inserted into the preheated sleeve. At this time, the heating is stopped, and after the sleeve cools down, it will be firmly fixed on the motor shaft, avoiding the situation where the sleeve is damaged due to traditional violent extrusion installation, thereby improving the installation effect of the sleeve.

[0028] Reference Figure 1-Figure 4 In the utility model, when in use, the motor to be installed with the sleeve is placed in the positioning sleeve 2, and then the electric push rods 21 around it are opened at the same time. The ends of the electric push rods 21 will simultaneously approach the side wall of the motor to clamp the motor and position it in the center of the positioning sleeve 2. Then, the sleeve required for installation is placed in the placement groove 31, and then the sealing cover 6 is closed, and the current box 52 is energized to the heating wire 5, so that the heating wire 5 is energized and heated, and the heat flows into the placement groove 31 to preheat the inner wall of the sleeve. According to the principle of thermal expansion and contraction, the sleeve will be heated and slightly expanded. At this time, the inner diameter of the sleeve will expand after heating. At the same time, the servo motor 42 drives the reciprocating screw 4 to rotate, so that the limit slider 43 slides along the sliding groove 41 with the positioning sleeve 2, so that the motor shaft is inserted into the sleeve seat 3, and under the thrust generated by the continuous rotation of the reciprocating screw 4, the motor shaft is inserted into the sleeve. After the sleeve is cooled, it will be firmly fixed on the motor shaft. Then the reciprocating screw 4 continues to rotate, and the motor will move out of the sleeve seat 3 with the sleeve connected to its shaft. Finally, the motor is removed to complete the assembly process.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor sleeve assembly device, comprising an operating table (1), characterized in that: Also includes: A positioning sleeve (2) having a clamping function, wherein the positioning sleeve (2) slides along the long axis direction of the operating table (1); Wherein, the operating table (1) is provided with a driving part for pushing the positioning sleeve (2) to slide. A shaft sleeve seat (3) fixed to the end surface of the operating table (1), wherein the shaft sleeve seat (3) is provided with a heating portion for preheating the shaft sleeve; A placement groove (31) is provided on the top of the shaft sleeve seat (3), and the central axis of the shaft sleeve seat (3) coincides with the central axis of the positioning sleeve (2).

2. A motor sleeve assembly device according to claim 1, characterized in that: Electric push rods (21) are fixedly connected to the outer wall of the positioning sleeve (2) on all sides, and the telescopic end of the electric push rod (21) penetrates into the positioning sleeve (2) and is fixedly connected to a clamping block (22).

3. The motor sleeve assembly device according to claim 2, characterized in that: The extension lines of the telescopic ends of the four electric push rods (21) intersect on the central axis of the positioning sleeve (2).

4. The motor sleeve assembly device according to claim 1, characterized in that: The driving part comprises a reciprocating screw (4), a sliding groove (41) is provided on the end surface of the operating table (1), the reciprocating screw (4) is rotatably connected inside the sliding groove (41), a servo motor (42) is fixedly connected to the side wall of the operating table (1), the rotating shaft of the servo motor (42) is fixedly connected to the end of the reciprocating screw (4), the side wall of the reciprocating screw (4) is slidably connected to a limiting slider (43), the top of the limiting slider (43) is fixedly connected to the bottom of the positioning sleeve (2), and the side wall of the limiting slider (43) is slidably fitted with the inner wall of the sliding groove (41).

5. The motor sleeve assembly device according to claim 1, characterized in that: The heating part comprises an electric heating wire (5); a heating groove (51) is provided inside the sleeve seat (3); the heating groove (51) is communicated with the inner cavity of the placement groove (31); the electric heating wire (5) is fixedly connected in the heating groove (51); a current box (52) is fixedly connected to the side wall of the sleeve seat (3); and the current box (52) and the electric heating wire (5) are electrically connected.

6. The motor sleeve assembly device according to claim 1, characterized in that: The top of the placement groove (31) is rotatably connected with a sealing cover (6).

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