Gear transmission butt joint structure

Abstract

The utility model relates to the technical field of gear transmission, and discloses a gear transmission butt joint structure which is characterized by comprising a gear piece and a supporting column formed on the gear piece, a sliding groove is formed in the supporting column, a connecting piece is connected in the sliding groove in a sliding mode, and the connecting piece, the supporting column and the gear piece are coaxially arranged. An elastic piece is arranged between the connecting piece and the bottom wall of the sliding groove, the connecting piece and the gear piece are connected through matching of an inserting rod and a notch, the inserting rod is arranged in the direction perpendicular to the axis of the supporting column, if the gear piece is meshed with the output end of the motor in a staggered mode, the elastic piece is compressed, only the connecting piece needs to slide into the sliding groove, and the position of the inserting rod is not affected. Therefore, the transmission among other gears at the transmission mechanism is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear drive technical field more specifically relates to a gear drive butt joint structure. BACKGROUND

[0002] In the butt joint of the transmission structure, for example, the butt joint between the motor output end and the input end of the transmission mechanism, the motor moves along the axial direction to complete the butt joint between the motor output end and the input end of the transmission mechanism, if the motor output end and the input end of the transmission mechanism are not matched in place, that is, the meshing of the motor output end and the input end of the transmission mechanism is misaligned, which will cause damage to both;

[0003] In the prior art, the connecting piece is slidably connected in the gear piece, the connecting piece and the gear piece are connected by a screw, the screw slides between the gear piece and the connecting piece, the screw is fixed between the connecting piece and the gear piece, and the elastic piece is sleeved on the screw, when the motor output end and the input end of the transmission mechanism are misaligned, the elastic piece is compressed, the connecting piece slides into the sliding groove of the gear piece, and damage caused by the abutment of the motor output end and the input end of the transmission mechanism is prevented.

[0004] However, the screw will move with the movement of the connecting piece, which will cause the screw to protrude from the gear piece or the sliding groove to a relatively deep depth. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a gear drive butt joint structure that eliminates the use of screws.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gear drive butt joint structure, comprising a gear piece and a support column formed on the gear piece, a sliding groove is formed on the support column, a connecting piece is slidably connected in the sliding groove, the connecting piece, the support column and the gear piece are coaxially arranged, an elastic piece is arranged between the connecting piece and the bottom wall of the sliding groove, a plug rod penetrating through the sliding groove is inserted into the support column, a notch is formed on the connecting piece, and the plug rod penetrates through the notch.

[0007] As a further improvement of the utility model, at least one limiting groove is formed on the sliding groove, a limiting strip is formed on the connecting piece, and the limiting strip is slidably connected in the limiting groove.

[0008] As a further improvement of the utility model, the sliding groove is a spline groove, and the connecting piece is engaged with the sliding groove.

[0009] As a further improvement of the utility model, external splines are formed on the connecting piece along the length.

[0010] As a further improvement of the utility model, the elastic piece is a compression spring.

[0011] As a further improvement of this utility model, a first bearing is fixedly connected to the support column.

[0012] As a further improvement of this utility model, the gear component is provided with an annular groove, and a second bearing is fixedly connected in the annular groove, and a receiving space is formed between the second bearing and the support column.

[0013] As a further improvement of this utility model, a circular hole is provided at the end of the gear component away from the support column, and the circular hole is coaxially arranged with the support column.

[0014] As a further improvement of this utility model, a reinforcing rib is formed between the support column and the gear component.

[0015] The beneficial effects of this utility model are as follows: In this utility model, the connecting part and the gear part are connected by the cooperation of the plug rod and the slot. The plug rod is set perpendicular to the axis of the support column. If the gear part and the motor output end are misaligned, the elastic element is compressed. The connecting part only needs to slide into the slot. The position of the plug rod is not affected, so it will not affect the transmission between other gears in the transmission mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model connected with the transmission mechanism and the motor;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a structural schematic diagram of the gear component in this utility model;

[0020] Figure 5 This is a structural schematic diagram of the connector in this utility model.

[0021] Reference numerals: 1. Gear component; 11. Ring groove; 12. Second bearing; 13. Accommodation space; 14. Circular hole; 2. Support column; 21. Slide groove; 22. Reinforcing rib; 3. Connector; 31. Groove; 4. Elastic component; 5. Insert rod. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] Referring to Figures 1 to 5 As shown in the figure, the gear transmission butt joint structure of the embodiment comprises a gear part 1 and a support column 2 formed on the gear part 1, a sliding groove 21 is formed on the support column 2, the sliding groove 21 extends into the gear part 1, a connecting piece 3 is slidably connected in the sliding groove 21, the connecting piece 3, the support column 2 and the gear part 1 are coaxially arranged, an elastic piece 4 is arranged between the connecting piece 3 and the bottom wall of the sliding groove 21, a plug rod 5 penetrating the sliding groove 21 is inserted into the support column 2, a notch 31 is formed on the connecting piece 3, the plug rod 5 passes through the notch 31, the connecting piece 3 and the gear part 1 are connected through the cooperation of the plug rod 5 and the notch 31, the plug rod 5 is arranged perpendicular to the axis direction of the support column 2, when the connecting piece 3 is pushed, the elastic piece 4 is compressed, the position of the plug rod 5 does not change, the connecting piece 3 extends into the sliding groove 21, the movable distance of the connecting piece 3 is limited by the length of the notch 31, the width of the notch 31 is slightly larger than the outer diameter of the plug rod 5, which is convenient for installation.

[0024] In the prior art, a screw is used, the central axis of the screw coincides with the central axis of the support column 2, one end of the screw is screwed with the connecting piece 3 through the sliding groove 21, when the connecting piece 3 is pushed and slides into the sliding groove 21, the screw will also move with the connecting piece 3, so that the end of the screw away from the connecting piece 3 will extend out of the gear part 1, which will affect the transmission between other gears at the transmission mechanism.

[0025] The plug rod 5 and the notch 31 are used to connect the gear part 1 and the connecting piece 3, when the gear part 1 is butt jointed with the output end of the motor, if the gear part 1 is misaligned with the output end of the motor, the connecting piece 3 only needs to slide into the sliding groove 21, the position of the plug rod 5 is not affected, so that the transmission between other gears at the transmission mechanism will not be affected.

[0026] In one embodiment, at least one limiting groove is formed on the sliding groove 21, a limiting strip is formed on the connecting piece 3, the limiting strip is slidably connected in the limiting groove, through the limiting groove and the limiting strip, the sliding direction of the connecting piece 3 is limited, the rotation of the connecting piece 3 is prevented, and the damage of the plug rod 5 and the connecting piece 3 caused by the abutment of the two is prevented.

[0027] Referring to Figure 2 , Figure 3 and Figure 4 As shown in the figure, preferably, in another embodiment, the sliding groove 21 is a spline groove, the connecting piece 3 is engaged with the sliding groove 21, the connecting piece 3 can be divided into two sections, a front section and a rear section, wherein the front section is engaged with the spline groove, in order to increase stability, the outer circle of the front section is an external spline; the rear section is connected with the output end of the motor, which can be selected as an axis body with at least one plane, or can be arranged as an external spline.

[0028] Preferably, referring to Figure 5As shown, the connecting piece 3 is formed with external splines along the length, and the entire outer surface of the connecting piece 3 is splined, so that the output end of the motor is also splined, which facilitates the machining of the connecting piece 3 and the butt joint between the output end of the motor and the connecting piece 3.

[0029] When the connecting piece 3 is pressed against the output end of the motor, the elastic member 4 is compressed, and when the output end of the motor rotates, the spline groove of the output end of the motor is adapted to the external spline on the connecting piece 3, and under the action of the restoring force of the elastic member 4, the connecting piece 3 is inserted into the output end of the motor to form engagement.

[0030] The elastic member 4 can be a spring or a compression spring. Preferably, referring to Figure 3 As shown, the elastic member 4 is a compression spring, and the service life of the compression spring is long.

[0031] In an embodiment, a first bearing is fixedly connected to the support column 2 to increase the stability of the gear piece 1 during rotation. The first bearing is connected at the hole position.

[0032] Preferably, referring to Figure 3 As shown, in another embodiment, the gear piece 1 is provided with a ring groove 11, and a second bearing 12 is fixedly connected in the ring groove 11. The second bearing 12 and the support column 2 form an accommodating space 13. The second bearing 12 is connected at the ring body to increase the stability of the gear piece 1 during rotation.

[0033] The first bearing or the second bearing 12 is selected according to different designs.

[0034] Referring to Figure 3 As shown, the gear piece 1 is provided with a circular hole 14 at the end away from the support column 2, and the circular hole 14 is coaxially arranged with the support column 2. The circular hole 14 can be inserted with a column body. In an embodiment, the gear piece 1 is engaged with a bevel gear, and the bevel gear is rotationally connected to a shaft, and the central axis of the shaft is perpendicular to the central axis of the gear piece 1. A sleeve rod is sleeved on the shaft, and the sleeve rod is integrally formed with the column body. Part of the column body is inserted into the circular hole 14 to support the gear piece 1 and increase the stability of the gear piece 1 during rotation.

[0035] Referring to Figure 4 As shown, the support column 2 and the gear piece 1 form a reinforcing rib 22, and the reinforcing rib 22 is provided with a plurality of reinforcing ribs which are uniformly distributed along the central axis of the support column 2 to increase the stability of the support column 2 and prevent the support column 2 from breaking.

[0036] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. A geared butt joint structure, characterized by: The utility model provides a gear piece (1) and the support (2) formed on the gear piece (1), the support (2) is set up with the connecting piece (3) in the slide groove (21) of opening, the connecting piece (3), the support (2) with the gear piece (1) coaxial arrangement is set up, the connecting piece (3) with the slide groove (21) bottom wall between the elastic member (4) is arranged, the support (2) is inserted with the plug rod (5) of penetrating the slide groove (21), the connecting piece (3) is opened with the slot (31), the plug rod (5) passes through the slot (31).

2. A gear drive butt joint structure according to claim 1, characterized in that: At least one limiting slot is formed in the slide groove (21), and a limiting strip is formed on the connecting piece (3) and is slidably connected in the limiting slot.

3. A gear drive butt joint structure according to claim 1, characterized in that: The slide groove (21) is a spline groove, and the connecting piece (3) is engaged with the slide groove (21).

4. A geared docking structure according to claim 3, wherein: An external spline is formed on the connecting piece (3) along the length.

5. A geared docking structure as claimed in claim 1, wherein: The elastic member (4) is a compression spring.

6. A geared docking structure as claimed in claim 1, wherein: A first bearing is fixedly connected to the support (2).

7. A geared docking structure as claimed in claim 1, wherein: A ring groove (11) is formed in the gear piece (1), a second bearing (12) is fixedly connected in the ring groove (11), and an accommodating space (13) is formed between the second bearing (12) and the support (2).

8. A geared docking structure as claimed in claim 1, wherein: A circular hole (14) is formed at an end of the gear piece (1) away from the support (2), and the circular hole (14) is coaxially arranged with the support (2).

9. A geared docking structure as claimed in claim 1, wherein: A reinforcing rib (22) is formed between the support (2) and the gear piece (1).

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