Main shaft for AT actuator limiting device

Abstract

The utility model belongs to the technical field of pneumatic actuator accessory application, and particularly discloses a main shaft for an AT actuator limiting device, which comprises a lower transmission connecting part, a cylindrical gear part, an upper transition ring, an upper transition part, an upper fixed connecting part, round blocks on the opposite surfaces of the cylindrical gear part and the upper transition ring, and a plurality of clamping teeth on the outer walls of the round blocks, wherein the clamping teeth and the cylindrical gear parts are located in the same vertical direction, the number of the clamping teeth is the same as that of the cylindrical gear parts, and the clamping teeth are arranged to be U-shaped. The utility model has the beneficial effects that: 1, the plurality of latches and the cylindrical gear part are processed and formed at one time, so that the utility model has the characteristics of high efficiency, high precision and low cost; after the changed clamping teeth of the main shaft are assembled with the tooth grooves of the limiting block, the number of the contact surfaces of the main shaft and the limiting block is the same as the number of teeth of a cylindrical gear after design from original eight surfaces, the contact surfaces are increased, the torque transmission capacity is improved, and the whole limiting mechanism has the advantages of being long in service life, stable in transmission and high in precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic actuator accessory applications, and particularly relates to a main shaft for a limit device of an AT actuator. Background Technique

[0002] At present, the design of the main shaft of the angle adjustment device of the AT type pneumatic actuator is realized by machining an octagonal shape on the main shaft to match the octagonal shape of the limit block. The main disadvantages are as follows: 1. After machining the cylindrical gear of the main shaft, the octagonal shape is machined again, so there is a positional deviation between the octagon and the cylindrical gear; 2. There are only eight contact surfaces between the octagonal shape on the main shaft and the limit block. When transmitting a large torque (greater than 500 N·m), due to the small number of contact surfaces, the main shaft is prone to deformation; 3. The octagonal shape of the main shaft or the limit block is machined by mechanical milling, which will generate processing costs and increase the cost of the actuator.

[0003] Therefore, based on the above problems, the utility model provides a main shaft for a limit device of an AT actuator. Content of the Utility Model

[0004] Purpose of the Utility Model: The purpose of the utility model is to provide a main shaft for a limit device of an AT actuator, and solve the technical problems existing in the use of the main shaft of the current limit device in the background technique.

[0005] Technical Solution: The main shaft for a limit device of an AT actuator of the utility model includes a lower transmission connection part, a cylindrical gear part, an upper transition ring, an upper transition part and an upper fixed connection part. Circular blocks on the opposite surfaces of the cylindrical gear part and the upper transition ring, and several engaging teeth on the outer wall of the circular block; among them, the engaging teeth are in the same vertical direction as the cylindrical gear part and have the same number as the cylindrical gear part, and the engaging teeth are set in a "U" shape.

[0006] In this technical solution, the diameter dimension of the circular block is 70 mm and the thickness dimension is 20 mm.

[0007] In this technical solution, 2*45° chamfers are respectively provided on the engaging teeth.

[0008] Compared with the prior art, the beneficial effects of the main shaft for a limit device of an AT actuator of the utility model are as follows: 1. Several engaging teeth and the cylindrical gear part are machined integrally at one time, which has the characteristics of high efficiency, high precision and low cost; 2. After the engaging teeth of the modified main shaft are assembled with the tooth grooves of the limit block, the contact surface between the main shaft and the limit block changes from the original eight surfaces to the same number as the number of teeth of the cylindrical gear through design, increasing the contact surface, improving the torque transmission capacity, and making the whole limit mechanism have the characteristics of long service life, stable transmission and high precision. Description of the Drawings

[0009] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a structural schematic diagram of the main shaft of the AT actuator limit device of the utility model;

[0011] Figure 2 This is a schematic diagram of the main shaft B-direction structure of the AT actuator limit device of the utility model;

[0012] Among them, the serial numbers in the figure are as follows: 10-lower transmission connection part, 11-cylindrical gear part, 12-upper transition ring, 13-upper transition part, 14-upper fixed connection part, 15-circular block, 16-grip. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] Example

[0016] like Figure 1 and Figure 2 The main shaft for the AT actuator limit device shown in Figure 2 includes a lower transmission connection part 10, a cylindrical gear part 11, an upper transition ring 12, an upper transition part 13, and an upper fixed connection part 14.

[0017] A circular block 15 on the opposite surfaces of the cylindrical gear part 11 and the upper transition ring 12.

[0018] Several engaging teeth 16 on the outer wall of the circular block 15.

[0019] Among them, the engaging teeth 16 are in the same vertical direction as the cylindrical gear part 11 and have the same number as the cylindrical gear part 11. The engaging teeth 16 are set in a "U" shape.

[0020] In addition, preferably, the diameter dimension of the circular block 15 is 70 mm and the thickness dimension is 20 mm, so that it has corresponding pressure resistance strength and realizes stable torque transmission.

[0021] In addition, preferably, 2*45° chamfers are respectively provided on the engaging teeth 16 for matching with the inner tooth grooves of the limit block to complete accurate torque transmission.

[0022] The structural principle or working principle of the main shaft for the AT actuator limit device of this structure:

[0023] Please review as Figure 1 and Figure 2 : Through design calculation, a circular block 15 is arranged on the opposite surfaces of the cylindrical gear part 11 and the upper transition ring 12, and several engaging teeth 16 are arranged on the outer wall of the circular block 15 to replace the original externally octagonal shape formed by secondary processing. At the same time, the cylindrical gear part 11 and several engaging teeth 16 are integrally processed, which has the characteristics of high efficiency, high precision, and low cost.

[0024] It should be noted that in this article, terms such as "including", "comprising", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such a process, method, article, or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article, or device including the said element.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. The main shaft for the AT actuator limit device includes a lower transmission connection part (10), a cylindrical gear part (11), an upper transition ring (12), an upper transition part (13) and an upper fixed connection part (14), and is characterized in that: The circular blocks (15) on the opposite surfaces of the cylindrical gear part (11) and the upper transition ring (12); Several engaging teeth (16) on the outer wall of the circular block (15); Among them, the engaging teeth (16) are in the same vertical direction as the cylindrical gear part (11) and have the same number as the cylindrical gear part (11), and the engaging teeth (16) are set in the shape of "凵".

2. The main shaft for the AT actuator limit device according to claim 1, characterized in that: The diameter of the circular block (15) is 70 mm and the thickness is 20 mm.

3. The main shaft for the AT actuator limit device according to claim 1, characterized in that: 2*45° chamfers are respectively arranged on the engaging teeth (16).

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