Shaft penetrating guide device

Abstract

The utility model belongs to the technical field of motor assembly, and discloses a shaft penetrating guide device which comprises a guide key and further comprises a supporting rib arranged on the guide key, a positioning pin and a connecting bolt are installed in the supporting rib, one end of the supporting rib is provided with a connecting plate, the connecting plate is in an inwards-concave circular arc shape, and the positioning pin is connected with the connecting plate. A limiting pin is installed on the connecting plate, and a plurality of spherical plungers are evenly distributed in the circumferential direction of the connecting plate. According to the shaft penetrating guiding device, through the arrangement of positioning guiding, the alignment degree of the rotor shaft key groove and the rotor supporting frame key groove is improved, the subsequent machining requirement is met, the product performance is guaranteed, the yield is guaranteed, the production period is shortened, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor assembly, in particular to a shaft-penetrating guide device. Background Art

[0002] The rotor support frame and the rotor shaft are both important components of the motor, and the two usually adopt an interference fit. During assembly, the rotor support frame needs to be heated and then inserted into the rotor shaft.

[0003] However, in the prior art, after the rotor support frame is taken out of the heating furnace and transferred to the shaft threading processing area, the temperature of the rotor support frame has dropped and the shaft hole has begun to shrink. The rotor shaft cannot be adjusted in position after being inserted into the shaft hole, and it is difficult to insert the rotor shaft into the shaft hole when the rotor shaft keyway and the rotor support frame keyway are precisely positioned. Utility Model Content

[0004] The purpose of the utility model is to provide a shaft-penetrating guide device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A shaft-through guiding device includes a guide key and a supporting rib arranged on the guide key, wherein a positioning pin and a connecting bolt are installed in the supporting rib, a connecting plate is arranged at one end of the supporting rib, the connecting plate is in a concave arc shape, a limiting pin is installed on the connecting plate, and a plurality of spherical plungers are evenly distributed circumferentially on the connecting plate.

[0007] Furthermore: the guide key is 330 mm long, which ensures the stability of the guide, and the support rib is 90 mm long, which ensures the firmness of the connection.

[0008] Furthermore, the limiting pin and the connecting plate are interference-fitted to ensure accurate and reliable fixation.

[0009] Furthermore: the spherical plunger and the connecting plate are threadedly connected to facilitate rotation and locking.

[0010] Furthermore: six connecting bolts are provided, and M6 hexagon socket bolts are used to ensure a stable connection.

[0011] Compared with the prior art, the beneficial effects are:

[0012] By setting the positioning guide, the alignment between the rotor shaft keyway and the rotor support frame keyway is improved to meet subsequent processing requirements, ensure product performance, ensure the yield rate, shorten the production cycle, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a right perspective view of a shaft-penetrating guide device described in the utility model;

[0014] Figure 2 It is a front view of a shaft-penetrating guide device described in the utility model;

[0015] Figure 3 It is a top view of a shaft-penetrating guide device described in the utility model.

[0016] In the accompanying drawings: 1. guide key; 2. supporting rib; 3. connecting plate; 4. connecting bolt; 5. spherical plunger; 6. limit pin; 7. positioning pin. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 A through-shaft guide device includes a guide key 1 and a support rib 2 arranged on the guide key 1. A positioning pin 7 and a connecting bolt 4 are installed in the support rib 2. A connecting plate 3 is arranged at one end of the support rib 2. The connecting plate 3 is a concave arc shape. A limit pin 6 is installed on the connecting plate 3. A plurality of spherical plungers 5 are evenly distributed circumferentially on the connecting plate 3.

[0019] Furthermore: the length of the guide key 1 is 330 mm, which ensures the stability of the guide; the length of the support rib 2 is 90 mm, which ensures the firmness of the connection; the limit pin 6 and the connecting plate 3 are interference fit, which ensures the accurate and reliable fixation; the spherical plunger 5 and the connecting plate 3 are threadedly connected to facilitate rotation and locking; six connecting bolts 4 are provided, and M6 hexagon socket bolts are used to ensure a stable connection.

[0020] Working principle: First, accurately position the guide key on the support rib 2 through the locating pin 7, and then use the connecting bolt 4 to fix the guide key 1 and the support rib 2 together, and then insert the connecting plate 3 into the rotor support frame, and use the limit pin 6 to locate the position of the connecting plate 3 on the rotor support frame, so that the guide key 1 is aligned with the keyway of the rotor support frame, and then tighten the spherical plunger 5 to press the rotor support frame to fix it, and then after heating the two, slide the guide key 1 in the keyway of the rotor shaft, insert the rotor shaft into the rotor support frame, and finally remove the connecting plate 3 from the rotor support frame by reversing the above steps.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaft threading guide device, comprising a guide key (1), characterized in that: It also includes a support rib (2) arranged on the guide key (1), a positioning pin (7) and a connecting bolt (4) are installed in the support rib (2), a connecting plate (3) is arranged at one end of the support rib (2), the connecting plate (3) is in the shape of an inwardly concave arc, a limiting pin (6) is installed on the connecting plate (3), and a plurality of spherical plungers (5) are evenly distributed around the circumference of the connecting plate (3).

2. The shaft-threading guide device according to claim 1, characterized in that: The guide key (1) is 330 mm long, and the support rib (2) is 90 mm long.

3. The shaft-threading guide device according to claim 1, characterized in that: The limiting pin (6) and the connecting plate (3) are interference fit.

4. The shaft-threading guide device according to claim 1, characterized in that: The spherical plunger (5) and the connecting plate (3) are threadedly connected.

5. The shaft-threading guide device according to claim 1, characterized in that: The connecting bolts (4) are provided in six numbers and are M6 hexagon socket bolts.

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