Limiting block for AT actuator limiting device
By designing the limited block for AT actuator limit device, a round -shaped groove and semi -circular strip -shaped structure is used to solve the high cost of the current limited bit block and the unstable torque transmission. The problem achieves higher accuracy and longer service life.
Patent Information
- Application Number
- CN202421261065.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The angle adjustment device limit block of the existing AT type pneumatic actuators has increased costs due to the internal shape of the eight squares through mechanical milling. When transmitting large torque, it is easy to deform due to the few contact surfaces, which affects accurate and stable torque transmission. .
A limit block for the AT actuator limit device is designed. The limit block body is provided with a circular through groove. The inner wall of the through groove is provided with a bar-shaped protrusion and a tooth groove. The bar-shaped protrusion is a semicircle. The shape structure is made by stamping, which increases the contact surface and improves the torque transmission capacity.
By stamping and forming, the bumps and alginus are reducing the use cost of stamping molds, improving the accuracy of product, increasing the contact surface, improving the torque transmission capacity, so that the service life of the limited mechanism is long, stable and stable and transmitted. High accuracy.
Smart Images
Figure CN222392081U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of application of pneumatic actuator accessories, and in particular relates to a limiting block used for a limiting device of an AT actuator. Background Art
[0002] At present, the limit block used for the angle adjustment device of AT type pneumatic actuator has an octagonal shape inside, which is matched with the octagonal shape machined on the main shaft. The main disadvantages are: 1. The octagonal shape inside the limit block is made by mechanical milling, which will incur processing costs and increase the cost of the actuator; 2. Because the octagonal shape of the limit block has only eight contact surfaces with the octagonal shape on the main shaft, when transmitting a large torque (greater than 500N.m), it is easy to deform due to the small contact surface, affecting the accurate and stable torque transmission.
[0003] Therefore, based on the above problem, the utility model provides a limit block for a limit device of an AT actuator. Utility Model Content
[0004] Purpose of the utility model: The purpose of the utility model is to provide a limit block for an AT actuator limit device, so as to solve the technical problems existing in the use of the limit block of the current AT type pneumatic actuator angle adjustment device in the background technology.
[0005] Technical solution: The limit block of the utility model for the AT actuator limit device includes a limit block body, a circular through groove is arranged in the limit block body, and strip protrusions are arranged on the inner wall of the circular through groove, and tooth grooves are formed between the strip protrusions; wherein the strip protrusions are semicircular structures.
[0006] In the technical solution of the present invention, the diameter of the circular through groove is 70.1 mm.
[0007] In the technical solution of the present invention, the length dimension of the strip-shaped protrusion is 20 mm.
[0008] In the technical solution, the number of the strip-shaped protrusions and tooth grooves used in conjunction with the inner wall of the circular through groove is twenty respectively; wherein the strip-shaped protrusions and tooth grooves are respectively made by stamping.
[0009] Compared with the prior art, the beneficial effects of the limit block of the AT actuator limit device of the utility model are: 1. The service life of the stamping die used to make the strip protrusions and tooth grooves in the limit block is longer, the stamping product precision is higher, and the use cost of the stamping die is reduced; 2. After the modified strip protrusions and tooth grooves are assembled with the latch teeth on the main shaft, the contact surface of the strip protrusions, tooth grooves and the latch teeth is changed from the original eight sides to the same number of teeth of the cylindrical gear on the main shaft through design, thereby increasing the contact surface and improving the torque transmission capacity, so that the entire limit mechanism has the characteristics of long service life, smooth transmission and high precision. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] 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.
[0011] Figure 1 It is a schematic diagram of the top view of the limit block of the limit device for the AT actuator of the utility model;
[0012] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure at L in the middle;
[0013] Figure 3 yes Figure 1 Schematic diagram of the structure of KK;
[0014] Figure 4 , Figure 5 It is a schematic diagram of the assembly of the limit block and the main shaft of the limit device for the AT actuator of the utility model;
[0015] Among them, the serial numbers in the figure are as follows: 10-limiting block body, 11-circular through groove, 12-bar protrusion, 13-tooth groove. DETAILED DESCRIPTION
[0016] 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.
[0017] 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. Example
[0018] like Figure 1 , Figure 2 and Figure 3 The limit block for the AT actuator limit device shown in the figure comprises a limit block body 10,
[0019] A circular through groove 11 is provided in the limit block body 10.
[0020] The inner wall of the circular through groove 11 is provided with a strip-shaped protrusion 12.
[0021] Tooth grooves 13 are formed between the strip-shaped protrusions 12; wherein the strip-shaped protrusions 12 are semicircular structures.
[0022] In addition, the diameter of the circular through groove 11 is preferably 70.1 mm, and the length of the strip protrusion 12 is 20 mm, which is used for assembly with the main shaft teeth to achieve precise torque transmission.
[0023] In addition, the number of the strip-shaped protrusions 12 and tooth grooves 13 used in conjunction with the inner wall of the circular through groove 11 is preferably twenty, which are used to match the main shaft teeth to achieve stable torque transmission; wherein the strip-shaped protrusions 12 and tooth grooves 13 are respectively stamped and formed, which is easy to manufacture.
[0024] The structural principle or working principle of the limit block of the AT actuator limit device of this structure:
[0025] Please review Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5: The limit block body 10 that cooperates with the spindle teeth only needs to change the original octagonal stamping die into a stamping die with the same module and number of teeth as the spindle. Although the process of the limit block body 10 has not increased, the original octagonal stamping die has only eight sides (eight faces) during the stamping process, which increases the contact area and increases the stamping pressure, making the die easy to wear and difficult to ensure the accuracy. However, the strip protrusions 12 and tooth grooves 13 in the modified limit block body 10 are designed according to the spindle module and the number of teeth. The stamping die has a large number of contacts, which reduces the stamping pressure, making the stamping die have a longer service life and the stamping product has a higher precision.
[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0027] 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. A limit block for a limit device of an AT actuator, comprising a limit block body (10), characterized in that: A circular through groove (11) is provided in the limit block body (10). The inner wall of the circular through groove (11) is provided with a strip-shaped protrusion (12). Tooth grooves (13) are formed between the strip-shaped protrusions (12); Wherein, the strip-shaped protrusion (12) is a semicircular structure.
2. The limit block for the limit device of the AT actuator according to claim 1, characterized in that: The diameter of the circular through groove (11) is 70.1 mm.
3. The limit block for the limit device of the AT actuator according to claim 1, characterized in that: The length of the strip-shaped protrusion (12) is 20 mm.
4. The limit block for the limit device of the AT actuator according to claim 1, characterized in that: The number of the strip-shaped protrusions (12) and the tooth grooves (13) used in conjunction with the inner wall of the circular through groove (11) are respectively twenty; The strip-shaped protrusions (12) and the tooth grooves (13) are respectively formed by stamping.