CN220416033U - Gear shaft with dustproof structure - Google Patents

Abstract

The utility model discloses a tooth shaft with a dustproof structure, which comprises a tooth shaft body and a gear, wherein the gear is fixedly connected to the outer side of the tooth shaft body, a fixed seat is fixedly connected to the outer side of the tooth shaft body, the fixed seat is positioned on one side of the gear, a sliding seat is slidably connected to the outer side of the fixed seat, a fastening sleeve is fixedly connected to one side of the sliding seat, one side of the fastening sleeve is slidably connected with the gear, a fastening mechanism is slidably connected to the inner side of the fixed seat, the fastening mechanism comprises a fastening ring plate, and four connecting plates are fixedly connected to the outer side of the fastening ring plate. The problem that the existing gear shaft has gaps in connection between the straight shaft in the gear shaft and the gear, and the outside air contains more impurities, so that the impurities in the air are easy to enter the gaps between the straight shaft and the gear, and the connection parts between the straight shaft and the gear are easy to loosen after the straight shaft and the gear are stressed for a long time is solved, and then falling off can occur.

Description

Gear shaft with dustproof structure

Technical Field

The utility model belongs to the technical field of tooth shafts, and particularly relates to a tooth shaft with a dustproof structure.

Background

The gear shaft can be divided into a crankshaft and a straight shaft according to the different axial shapes, and can be divided into: 1. the rotating shaft is a common shaft in machinery, such as a shaft in various speed reducers, and the like, the second spindle is used for supporting rotating parts to only bear the bending moment and not transmit the torque, the first spindle rotates, such as a shaft of a railway vehicle, and the like, the second spindle does not rotate, such as a shaft for supporting pulleys, and the third spindle is mainly used for transmitting the torque and not bear the bending moment, such as a long optical axis in a crane moving mechanism, a driving shaft of an automobile, and the like.

However, the existing gear shaft has the following problems:

1. the traditional connection between the straight shaft and the gear in the gear shaft has gaps, and the outside air contains more impurities, so that the impurities in the air are easy to enter the gaps between the straight shaft and the gear.

2. Most of the joints of the straight shaft and the gear are easy to loosen after being stressed for a long time, and then the situation of falling off can occur.

Disclosure of Invention

The utility model aims to provide a gear shaft with a dustproof structure, which solves the technical problems in the prior art.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows: the utility model provides a tooth axle with dustproof construction, includes tooth axle body and gear, gear fixed connection is in the outside of tooth axle body, the outside fixedly connected with fixing base of tooth axle body, the fixing base is located one side of gear, the outside sliding connection of fixing base has the sliding seat, one side fixedly connected with fastening cover of sliding seat, one side and the gear sliding connection of fastening cover, the inboard sliding connection of fixing base has fastening mechanism.

Preferably, the fastening mechanism comprises a fastening ring plate, wherein four connecting plates are fixedly connected to the outer side of the fastening ring plate, and one ends of the four connecting plates penetrate through the inner side of the sliding seat and are fixedly connected with the sliding seat.

Preferably, the top of the fastening ring plate is fixedly connected with a main spring, and one end of the main spring is fixedly connected with the inner wall of the fixing seat.

Preferably, four corners on one side of the fastening ring plate are fixedly connected with auxiliary springs, and one end of each auxiliary spring is fixedly connected with the inner wall of the fixing seat.

Preferably, a chute is formed in the fastening ring plate, a positioning column is connected in the chute in a sliding manner, and two ends of the positioning column are fixedly connected with the inner wall of the fixing seat.

Preferably, the outside of fixing base has seted up the spread groove corresponding with the connecting plate, spread groove and connecting plate clearance fit, the length of spread groove is greater than the length of connecting plate.

The tooth shaft with the dustproof structure has the following advantages:

1. this tooth axle with dustproof construction through setting up fastening mechanism, and main spring applys elasticity to the fastening ring board to make the fastening ring board promote the sliding seat through the connecting plate and remove, the sliding seat promotes the tight contact of gear in the tight sleeve and the tooth axle body outside, forms sealed space between tight sleeve and the tooth axle body, thereby prevents that external impurity from getting into in the gap of tooth axle body and gear, plays dirt-proof effect.

2. This tooth axle with dustproof construction through setting up the adapter sleeve, makes the contact of gear and tooth axle body inseparabler after the adapter sleeve applys pressure to the gear, prevents that junction between them from becoming flexible, and then can appear the condition that drops.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a fixing base of the present utility model;

FIG. 3 is a schematic view of the structure of the annular toothed plate of the present utility model;

FIG. 4 is a schematic view showing the use state of two sets of fastening sleeves according to the present utility model.

The figure indicates: 1. a tooth shaft body; 2. a gear; 3. a fixing seat; 4. a sliding seat; 5. a fastening sleeve; 601. a fastening ring plate; 602. a connecting plate; 603. a main spring; 7. an auxiliary spring; 8. a chute; 9. positioning columns; 10. and a connecting groove.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

For a better understanding of the objects, structures and functions of the present utility model, a tooth shaft with a dust-proof structure will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-4, the tooth shaft with the dustproof structure comprises a tooth shaft body 1 and a gear 2, wherein the gear 2 is fixedly connected to the outer side of the tooth shaft body 1, a fixing seat 3 is fixedly connected to the outer side of the tooth shaft body 1, the fixing seat 3 is positioned on one side of the gear 2, a sliding seat 4 is slidably connected to the outer side of the fixing seat 3, a fastening sleeve 5 is fixedly connected to one side of the sliding seat 4, one side of the fastening sleeve 5 is slidably connected with the gear 2, and a fastening mechanism is slidably connected to the inner side of the fixing seat 3.

Through setting up the adapter sleeve 5, make the contact of gear 2 and tooth axle body 1 inseparabler after the adapter sleeve 5 applys pressure to gear 2, prevent that the junction between them from becoming flexible, and then can appear the condition that drops.

As shown in fig. 3, the fastening mechanism includes a fastening ring plate 601, and four connecting plates 602 are fixedly connected to the outer side of the fastening ring plate 601, and one ends of the four connecting plates 602 penetrate through the inner side of the sliding seat 4 and are fixedly connected to the sliding seat 4.

As shown in fig. 3, the top of the fastening ring plate 601 is fixedly connected with a main spring 603, and one end of the main spring 603 is fixedly connected with the inner wall of the fixing seat 3.

Through setting up fastening mechanism, main spring 603 applys elasticity to fastening ring plate 601 to make fastening ring plate 601 promote sliding seat 4 through connecting plate 602 and remove, sliding seat 4 promote the tight contact of gear 2 in the tight sleeve 5 and the tooth axle body 1 outside, form sealed space between tight sleeve 5 and the tooth axle body 1, thereby prevent that external impurity from getting into in the gap of tooth axle body 1 and gear 2, play dirt-proof effect.

Four corners on one side of the fastening ring plate 601 are fixedly connected with auxiliary springs 7, and one ends of the auxiliary springs 7 are fixedly connected with the inner wall of the fixing seat 3.

As shown in fig. 3, by providing the auxiliary spring 7, the main spring 603 can be assisted to apply elastic force to the fastening ring plate 601, so that the fastening sleeve 5 is more tightly attached to the gear 2.

The inside of fastening ring plate 601 has offered spout 8, and the inside sliding connection of spout 8 has reference column 9, and reference column 9's both ends all with fixing base 3's inner wall fixed connection, auxiliary spring 7 is passed to reference column 9's one end.

As shown in fig. 3, by providing the chute 8 and the positioning column 9, the positioning column 9 plays a limiting role in the fastening ring plate 601, and prevents the situation that the fastening ring plate 601 is moved and blocked due to shaking and displacement.

As shown in fig. 2, a connecting groove 10 corresponding to the connecting plate 602 is formed on the outer side of the fixing base 3, the connecting groove 10 is in clearance fit with the connecting plate 602, and the length of the connecting groove 10 is greater than that of the connecting plate 602.

Through setting up spread groove 10, spread groove 10 and connecting plate 602 cooperation use for connecting plate 602 can make a round trip in spread groove 10 smooth and easy slip, improves the smoothness nature that connecting plate 602 removed.

The working principle of the gear shaft with the dustproof structure is as follows: the main spring 603 exerts elasticity to fastening ring board 601 to make fastening ring board 601 promote the sliding seat 4 through connecting plate 602 and remove to the one side that is close to gear 2, sliding seat 4 promotes the tight contact of gear 2 in the tight contact of adapter sleeve 5 and the tooth axle body 1 outside, form sealed space between adapter sleeve 5 and the tooth axle body 1, thereby prevent that external impurity from getting into in the gap of tooth axle body 1 and gear 2, play dirt-proof effect, and make the contact of gear 2 and tooth axle body 1 inseparabler after the adapter sleeve 5 exerts pressure to gear 2 simultaneously, prevent that the junction between them from becoming flexible, and then can appear the condition that drops, and adapter sleeve 5 can be set up to two, and the symmetry sets up in the both sides of gear 2, with gear 2 centre gripping in the centre, so that better tight gear 2 of support.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (4)

1. The utility model provides a tooth axle with dustproof construction, includes tooth axle body (1) and gear (2), gear (2) fixed connection is in the outside of tooth axle body (1), its characterized in that: the gear comprises a gear shaft body (1), wherein a fixed seat (3) is fixedly connected to the outer side of the gear shaft body (1), the fixed seat (3) is positioned on one side of a gear (2), a sliding seat (4) is slidably connected to the outer side of the fixed seat (3), a fastening sleeve (5) is fixedly connected to one side of the sliding seat (4), one side of the fastening sleeve (5) is slidably connected with the gear (2), and a fastening mechanism is slidably connected to the inner side of the fixed seat (3);

the fastening mechanism comprises a fastening ring plate (601), four connecting plates (602) are fixedly connected to the outer side of the fastening ring plate (601), one ends of the four connecting plates (602) penetrate through the inner side of the sliding seat (4) and are fixedly connected with the sliding seat (4), a main spring (603) is fixedly connected to the top of the fastening ring plate (601), and one end of the main spring (603) is fixedly connected with the inner wall of the fixing seat (3).

2. A tooth spindle with dust-proof structure as claimed in claim 1, characterized in that: the four corners of fastening ring board (601) one side are all fixedly connected with auxiliary spring (7), the one end of auxiliary spring (7) and the inner wall fixed connection of fixing base (3).

3. A tooth spindle with dust-proof structure as claimed in claim 1, characterized in that: the inside of fastening ring board (601) has seted up spout (8), the inside sliding connection of spout (8) has reference column (9), the both ends of reference column (9) all with the inner wall fixed connection of fixing base (3).

4. A tooth spindle with dust-proof structure as claimed in claim 1, characterized in that: the connecting device is characterized in that a connecting groove (10) corresponding to the connecting plate (602) is formed in the outer side of the fixing seat (3), the connecting groove (10) is in clearance fit with the connecting plate (602), and the length of the connecting groove (10) is larger than that of the connecting plate (602).