CN222315653U - Replaceable internal spline shaft - Google Patents

Abstract

The utility model provides a replaceable internal spline shaft which comprises a hollow shaft body, an involute internal spline sleeve, a pin and a retainer ring, wherein an involute internal spline is arranged at one end of the hollow shaft body, the involute internal spline sleeve is sleeved on the involute internal spline, a first semicircular hole is arranged on the outer side of the hollow shaft body, a second semicircular hole is arranged on the outer circle of the involute internal spline sleeve, a pin hole is formed after the first semicircular hole is in butt joint with the second semicircular hole, the pin is inserted into the pin hole, and the retainer ring is assembled at the involute internal spline sleeve. The utility model processes the outer circle of the involute internal spline housing into a circle which can be in transition fit with the hollow shaft body, freezes the involute internal spline housing, installs the involute internal spline housing into the hollow shaft body, and is provided with a retainer ring for preventing the involute spline housing from moving axially. The involute spline housing has the advantages of low production cost, short production period and strong universality.

Description

Replaceable internal spline shaft

Technical Field

The utility model relates to the technical field of motor shafts, in particular to a replaceable internal spline shaft.

Background

The motor is special in use environment, and the motor operation is an energy conversion function, so that electric energy is converted into mechanical energy or mechanical energy is converted into electric energy. In the process of transmitting mechanical energy, the motor is connected with mechanical parts thereof, usually a motor shaft is connected with the mechanical parts thereof, flat key type or spline type connection is common, in the process of processing internal splines, two modes, namely 1, gear shaping type and 2, broaching type are adopted, no matter which processing mode is adopted, one shaft can only process one spline, and when different users are matched, the user needs to reprocess the spline of the shaft with tiny changes of the number of teeth, modulus, tolerance and the like of the spline.

The shaft is a part for transmitting energy to an external machine by a motor, and the production process requires a plurality of working procedures such as blanking, tempering, discharging, finish turning, surface quenching of a spline and the like, so that the production period is longer, and for motors with the same appearance and different shaft splines, the shaft belongs to a place with poor universality and easy inventory, and is a relatively headache place of factories.

Disclosure of Invention

The utility model aims to provide a replaceable internal spline shaft.

The utility model provides a removable internal spline shaft, includes hollow shaft body, involute internal spline housing, pin and retaining ring, and involute internal spline is seted up to the one end of hollow shaft body, and involute internal spline housing suit is on involute internal spline, and first semicircle orifice is seted up in the hollow shaft body outside, and second semicircle orifice is seted up to involute internal spline housing excircle, forms the pinhole after first semicircle orifice and the butt joint of second semicircle orifice, and the pin inserts in the pinhole, and the retaining ring is joined in marriage and is adorned in involute internal spline housing department.

Preferably, the outer side of the hollow shaft body is provided with four first semicircular holes, the outer circle of the involute inner spline housing is provided with four second semicircular holes, the four first semicircular holes and the four second semicircular holes form pin holes, and four pins are respectively inserted into the four pin holes.

The utility model processes the outer circle of the involute internal spline housing into a circle which can be in transition fit with the hollow shaft body, the transition fit is tolerance fit, a second semicircular hole is processed at the corresponding position of the outer circle of the involute internal spline housing, a first semicircular hole is formed at the outer side of the hollow shaft body, the involute internal spline housing is frozen and then is put into the hollow shaft body, a pin hole is formed after the first semicircular hole and the second semicircular hole are butted, a pin is arranged at the position corresponding to the pin hole, a retainer ring is assembled, and the retainer ring is used for preventing the involute spline housing from moving axially.

The involute spline housing has low production cost, short production period and strong universality, a factory can produce various involute spline housings, the involute spline housing can be installed according to different requirements of users after the same motor is produced, the stock and production cost of the factory motor are effectively reduced, and the supply period is shortened for users with different involute spline requirements of the same appearance.

Drawings

FIG. 1 is a schematic view of a replaceable internal spline shaft from a perspective;

FIG. 2 is a schematic view of view angle A-A of FIG. 1;

FIG. 3 is a schematic view of an involute internal spline housing from a perspective;

FIG. 4 is a schematic view of another view of an involute internal spline housing;

FIG. 5 is a schematic view of the hollow shaft body structure;

FIG. 6 is a schematic view of the B-B view structure of FIG. 5;

In the figure, a hollow shaft body 1, an involute internal spline housing 2, a pin 3, a retainer ring 4, a first semicircular hole a and a second semicircular hole b.

Detailed Description

In order to make the technical scheme of the utility model easier to understand, the technical scheme of the utility model is clearly and completely described by adopting a mode of a specific embodiment with reference to the accompanying drawings.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a replaceable internal spline shaft comprises a hollow shaft body 1, an involute internal spline housing 2, a pin 3 and a retainer ring 4, wherein one end of the hollow shaft body 1 is provided with an involute internal spline, the involute internal spline housing 2 is sleeved on the involute internal spline, the outer side of the hollow shaft body 1 is provided with a first semicircular hole a, the outer circle of the involute internal spline housing 2 is provided with a second semicircular hole b, the first semicircular hole a and the second semicircular hole b are butted to form a pin hole, the pin 3 is inserted into the pin hole, the retainer ring 4 is assembled at the involute internal spline housing 2, and the involute spline housing is prevented from moving axially.

Preferably, the outer side of the hollow shaft body 1 is provided with four first semicircular holes a, the outer circle of the involute internal spline housing 2 is provided with four second semicircular holes b, the four first semicircular holes a and the four second semicircular holes b form 4 pin holes, and four pins 3 are respectively inserted into the four pin holes.

The utility model processes the outer circle of the involute internal spline housing 2 into a circle which can be in transition fit with the hollow shaft body 1, the transition fit is tolerance fit, a second semicircular hole b is processed at the corresponding position of the outer circle of the involute internal spline housing 2, a first semicircular hole a is formed at the outer side of the hollow shaft body 1, the involute internal spline housing 2 is frozen and then is put into the hollow shaft body 1, the first semicircular hole a and the second semicircular hole b are butted to form a pin hole, a pin 3 is arranged at the position corresponding to the pin hole, and a retainer ring 4 is assembled and used for preventing the involute spline housing 2 from moving axially.

The involute spline housing 2 has low production cost, short production period and strong universality, a factory can produce various involute spline housings 2, after the same motor is produced, the involute spline housing 2 can be installed according to different requirements of users, the stock and production cost of the factory motor are effectively reduced, and the supply period is shortened for users with the same appearance and different involute spline requirements.

It should be noted that the embodiments described herein are only some embodiments of the present utility model, not all the implementation manners of the present utility model, and the embodiments are only exemplary, and are only used for providing a more visual and clear way of understanding the present disclosure, not limiting the technical solution described in the present utility model. All other embodiments, and other simple alternatives and variations of the inventive solution, which would occur to a person skilled in the art without departing from the inventive concept, are within the scope of the utility model.

Claims (2)

1. A replaceable internal spline shaft is characterized by comprising a hollow shaft body, an involute internal spline sleeve, a pin and a retainer ring, wherein an involute internal spline is arranged at one end of the hollow shaft body, the involute internal spline sleeve is sleeved on the involute internal spline, a first semicircular hole is arranged on the outer side of the hollow shaft body, a second semicircular hole is arranged on the outer circle of the involute internal spline sleeve, a pin hole is formed after the first semicircular hole and the second semicircular hole are in butt joint, the pin is inserted into the pin hole, and the retainer ring is assembled at the involute internal spline sleeve.

2. The replaceable internal spline shaft as set forth in claim 1, wherein four first semicircular holes are formed in the outer side of the hollow shaft body, four second semicircular holes are formed in the outer circle of the involute internal spline housing, the four first semicircular holes and the four second semicircular holes form pin holes, and four pins are inserted into the four pin holes respectively.