Glue injection type gear

Abstract

The utility model relates to a glue injection type gear, which comprises a body, a transmission gear, a glue injection groove, a transmission shaft and a transmission shaft, the glue injection opening is obliquely formed along the body, and the end part of the glue injection opening extends to be communicated with the glue injection groove; the included angle between the inner ring and the horizontal line is less than 1 degree; the diameter of the glue injection groove is larger than that of the inner ring; firstly, a connecting shaft is inserted into a glue injection groove of an inner ring, glue is injected into a glue injection opening through a glue injection gun, the glue flows into a gap between the connecting shaft and the inner ring through the glue injection groove, at the moment, the glue is injected step by step along with movement of the relative positions of the connecting shaft and the inner ring, and the gap between the connecting shaft and a gear and the glue injection groove are filled with the glue; due to the fact that the inner ring is the inclined face, the distance between the inner ring and the connecting shaft is increased, the glue can flow in a one-way mode, after the glue is solidified, connection between the connecting shaft and the gear is achieved, and meanwhile the connection strength between the connecting shaft and the gear is guaranteed.

Description

Technical Field

[0001] The utility model relates to a transmission gear, in particular to a glue-injected gear. Background Art

[0002] In order to ensure the firmness and reliability between the gear and the connecting shaft, an appropriate amount of glue is applied between the connecting shaft and the end gear to reduce friction and enhance the connection strength;

[0003] The conventional glue application method is to apply glue on the connecting surface or the inner ring of the gear. During the assembly process of the connecting shaft and the gear end, due to the friction between the shaft and the hole, it is impossible to evenly apply the glue on the connecting shaft. The glue will not move along with the connecting shaft due to the too small distance between the hole and the shaft, resulting in uneven glue applied on the connecting shaft and affecting the connection stability.

[0004] In summary, how to achieve uniform coating between the gear and the connecting shaft has become an urgent problem for researchers in this field to solve. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: how to achieve uniform coating of glue between the gear and the connecting shaft;

[0006] To solve the above technical problem, the technical solution adopted by the utility model is:

[0007] The utility model is a glue-injected gear, including: a body, with transmission teeth arranged on its outer ring and a glue injection groove opened at its inner ring; and a glue injection port, which is obliquely opened along the body and its end extends to communicate with the glue injection groove; the inner ring is an inclined plane with an angle less than 1° with the horizontal line; the diameter of the glue injection groove is larger than the diameter of the inner ring;

[0008] Compared with the traditional method of pre-applying glue on the connecting shaft, in this solution, first ensure the cleanliness of the inner ring of the body and the surface of the connecting shaft. First, insert the connecting shaft into the position of the inner ring glue injection groove, inject glue into the glue injection port through a glue injection gun, and the glue flows into the gap between the connecting shaft and the inner ring through the glue injection groove. At this time, as the relative position of the connecting shaft and the inner ring moves, glue is gradually injected, so that the glue fills the gap between the connecting shaft and the gear and the glue injection groove; since the inner ring is an inclined plane, the distance between the inner ring and the connecting shaft increases, and the glue will flow unidirectionally. After the inner ring and the connecting shaft are fully matched, continue to inject glue, and the glue will overflow out of the body. Clean the overflowing glue manually. After the glue solidifies, the connection between the connecting shaft and the gear is achieved, and at the same time, the connection strength between the connecting shaft and the gear is ensured.

[0009] During the glue injection process, some glue will solidify at the glue injection port. At this time, during the rotation of the gear, the dynamic balance of the gear is affected, resulting in unstable rotation during connection. How to achieve the dynamic balance of the gear? In the present utility model, a first counterweight groove coaxial with the glue injection port is provided on the body; symmetrically arranged with the first counterweight groove with the center line of the body as the axis of symmetry, a second counterweight groove is provided on the body;

[0010] By placing counterweight blocks with different weights in the first counterweight groove and the second counterweight groove, the imbalance during the rotation of the gear is offset.

[0011] In order to connect the first counterweight groove and the second counterweight groove with the corresponding counterweight blocks, in the present utility model, connecting threads are provided on the inner walls of the first counterweight groove and the second counterweight groove;

[0012] In this solution, the connection between the counterweight groove and the counterweight block is achieved by means of a thread pair.

[0013] The beneficial effect of the present utility model: The present utility model is a glue-injected gear. During the assembly process of the connecting shaft and the gear, glue is injected into the glue injection groove through the glue injection port, and the glue fills the gap between the gear and the connecting shaft, realizing uniform coating of the glue between the gear and the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of part A of

[0017] In the figure: 1 - body, 2 - glue injection groove, 3 - glue injection port, 4 - inclined surface, 5 - first counterweight groove, 6 - second counterweight groove, 7 - counterweight block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0019] As Figure 1-2 shown, the present utility model is a glue-injected gear, including: a body 1, with transmission teeth provided on its outer ring and a glue injection groove 2 provided at its inner ring; and a glue injection port 3, which is obliquely provided along the body 1 and its end extends to communicate with the glue injection groove 2; the inner ring is an inclined surface 4 with an angle less than 1° with the horizontal line; the diameter of the glue injection groove 2 is larger than the diameter of the inner ring;

[0020] Compared with the traditional method of applying glue to the connecting shaft in advance, in this solution, first, the surfaces of the inner ring of the body 1 and the connecting shaft are ensured to be clean. First, the connecting shaft is inserted into the position of the inner ring glue injection groove 2, and glue is injected into the glue injection port 3 through a glue injection gun. The glue flows into the gap between the connecting shaft and the inner ring through the glue injection groove 2. At this time, as the relative position of the connecting shaft and the body 1 moves, glue is gradually injected, so that the glue fills the gap between the connecting shaft and the gear and the glue injection groove 2. Since the inner ring is an inclined surface 4, the distance between the inner ring and the connecting shaft increases, and the glue will flow unidirectionally. Until the inner ring and the connecting shaft are fully fitted, continue to inject glue, and the glue will overflow outside the body 1. The overflowing glue is cleaned manually. After the glue is cured, the connection between the connecting shaft and the gear is realized, and at the same time, the connection strength between the connecting shaft and the gear is ensured.

[0021] In Figure 2 it, the angle of the inclined surface 4 is a°, and a° is less than 1°.

[0022] As Figure 1-2 shown, during the glue injection process, some glue will solidify at b of the glue injection port 3. At this time, during the rotation of the gear, it will affect the dynamic balance of the gear, resulting in instability during the rotation of the connection. How to achieve the dynamic balance of the gear? The present utility model adopts that the body 1 is provided with a first counterweight groove 5 coaxially arranged with the glue injection port 3; taking the center line of the body 1 as the axis of symmetry, a second counterweight groove 6 is symmetrically arranged with the first counterweight groove 5 and is arranged on the body 1; a counterweight block 7 is installed in the corresponding counterweight groove.

[0023] By placing counterweight blocks with different weights in the first counterweight groove 5 and the second counterweight groove 6, the imbalance during the rotation of the gear is offset.

[0024] As Figure 1-2 shown, in order to realize the connection between the first counterweight groove, the second counterweight groove and the corresponding counterweight blocks, the present utility model adopts that the inner walls of the first counterweight groove 5 and the second counterweight groove 6 are both provided with connecting threads;

[0025] In this solution, the corresponding counterweight groove and the counterweight block 7 are connected by means of a thread pair.

[0026] Taking the ideal embodiments of the present utility model as the inspiration, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A glue-injected gear, characterized in that, Comprising: A body, with a transmission gear provided on its outer circumference and a glue injection groove opened at its inner circumference; And a glue injection port, which is obliquely opened along the body and whose end extends to communicate with the glue injection groove; The inner circumference is an inclined plane with an angle less than 1° with the horizontal line; The diameter of the glue injection groove is larger than the diameter of the inner circumference.

2. The injection - type gear according to claim 1, wherein, A first counterweight groove coaxial with the glue injection port is opened on the body; Taking the center line of the body as the axis of symmetry, a second counterweight groove is symmetrically arranged with the first counterweight groove and is opened on the body; Counterweight blocks are installed in the first counterweight groove and the second counterweight groove.

3. The injection - glue type gear according to claim 2, wherein, Connecting threads are opened on the inner walls of the first counterweight groove and the second counterweight groove.

Images