Large-air-membrane seam-passing air floating block device
By setting up throttle holes and pressure groove structures on the body of the air float block to disperse the pressure, the instability problem of the air float block at the rail joints is solved, and stability and accuracy are improved, and wear and vibration are reduced.
Patent Information
- Application Number
- CN202422354089.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-26
AI Technical Summary
传统气浮块在导轨接缝处容易失去支撑力,导致系统不稳定和精度下降。
A plurality of throttle holes and pressure grooves are provided on the air float body, and communicate with the air intake pipe through the cavity to disperse the pressure to ensure that the remaining throttle holes can still work normally when some throttle holes lose their support force, forming a stable gas film support.
Effectively maintain the stability and accuracy of the air float block at the rail joints, reduce wear and vibration, and improve the operating efficiency of the system.
Smart Images
Figure CN223076022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air floating blocks, and particularly relates to an air floating block device for an air film passing through a seam of a large size. Background Art
[0002] An air floating block is a mechanical component widely used in various high-precision linear motion systems. The air floating block supports the load by forming a thin gas film inside it, thereby achieving almost frictionless motion. This design can significantly reduce wear and improve the service life and operating efficiency of the equipment.
[0003] However, traditional air floating blocks have some limitations when facing extended guide rails. Especially at the joints of the guide rails, when the air floating block passes through these joints, due to the lack of sufficient supporting force, the air floating block may lose balance instantly, affecting the stability and accuracy of the entire system. Summary of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides an air floating block device for an air film passing through a seam of a large size. When the air floating block passes through the joint of the guide rail, by arranging a plurality of throttle holes and corresponding pressure grooves on the air floating block body, the pressure can be dispersed instantly when the air floating block passes through the seam, ensuring that only some throttle holes lose the supporting force, while the remaining throttle holes can still work normally to maintain the overall supporting effect.
[0005] The utility model also provides an air floating block device for an air film passing through a seam of a large size, including: an air floating block body, a first throttle hole is arranged above the air floating block body, a first pressure groove is arranged on the outer side wall of the first throttle hole and at the upper end of the air floating block body, a second throttle hole is arranged above the air floating block body, a second pressure groove is arranged on the outer side wall of the second throttle hole and at the upper end of the air floating block body, a cavity is arranged inside the air floating block body, and an air inlet hole pipe is arranged on one side of the air floating block body.
[0006] According to the air floating block device for an air film passing through a seam of a large size, the number of the first pressure grooves is eight, and the eight first pressure grooves are symmetrically distributed with the center of the first throttle hole as the central axis.
[0007] According to the air floating block device for an air film passing through a seam of a large size, the number of the second throttle holes is eight, and the eight second throttle holes are symmetrically distributed with the center of the first throttle hole as the central axis.
[0008] According to the air floating block device for an air film passing through a seam of a large size, the number of the second pressure grooves is three, and the three second pressure grooves are symmetrically distributed with the center of the first throttle hole as the central axis.
[0009] According to the air floating block device for an air film passing through a seam of a large size, the cavity is communicated with the air inlet hole pipe, the first throttle hole and the second throttle hole.
[0010] According to the described air film through-slit air floating block device, a switching valve is provided on one side of the air inlet hole pipe.
[0011] The utility model has the following beneficial effects:
[0012] 1. In the utility model, through the first throttle hole, the second throttle hole and the distributed pressure equalizing groove structure, the device can effectively disperse the pressure instantaneously when the air floating block passes through the slit, ensuring that only some throttle holes lose the supporting force while the remaining throttle holes continue to work normally.
[0013] 2. In the utility model, the large air film formed under the air floating block body has a large floating height, reducing the direct contact and friction with the guide rail, thereby reducing wear and vibration.
[0014] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings
[0015] The following further illustrates the utility model in conjunction with the drawings and embodiments;
[0016] Figure 1 It is a perspective view from the upper angle of an air film through-slit air floating block device of the utility model;
[0017] Figure 2 It is a structural diagram from the top view angle of an air film through-slit air floating block device of the utility model;
[0018] Figure 3 It is a structural diagram from the side view angle of an air film through-slit air floating block device of the utility model.
[0019] Legend Explanation:
[0020] 1. Air floating block body; 2. First throttle hole; 3. First pressure groove; 4. Second throttle hole; 5. Second pressure groove; 6. Cavity; 7. Air inlet hole pipe; 701. Switching valve. Detailed Embodiment
[0021] This part will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0022] Refer to Figures 1-3, an air film through-seam air float block device according to an embodiment of the present utility model includes: an air float block body 1, a first throttle hole 2 is provided above the air float block body 1, and a first pressure groove 3 is provided on the outer side wall of the first throttle hole 2 and at the upper end of the air float block body 1. A second throttle hole 4 is provided above the air float block body 1, and a second pressure groove 5 is provided on the outer side wall of the second throttle hole 4 and at the upper end of the air float block body 1. A cavity 6 is provided inside the air float block body 1, and an air inlet pipe 7 is provided on one side of the air float block body 1.
[0023] The number of the first pressure grooves 3 is eight, and the eight first pressure grooves 3 are symmetrically distributed with the center of the first throttle hole 2 as the central axis.
[0024] The number of the second throttle holes 4 is eight, and the eight second throttle holes 4 are symmetrically distributed with the center of the first throttle hole 2 as the central axis.
[0025] The number of the second pressure grooves 5 is three, and the three second pressure grooves 5 are symmetrically distributed with the center of the first throttle hole 2 as the central axis. A stable air flow is formed through the second pressure grooves 5.
[0026] The cavity 6 is communicated with the air inlet pipe 7, the first throttle hole 2 and the second throttle hole 4. Through the cavity 6, it is ensured that the gas entering from the air inlet pipe 7 flows out evenly from the first throttle hole 2 and the second throttle hole 4.
[0027] A switch valve 701 is provided on one side of the air inlet pipe 7. The on-off of the gas is controlled through the switch valve 701, so as to conveniently adjust the working state of the air float block body 1.
[0028] Working principle: When in use, the air inlet pipe 7 is connected to the gas transmission pipeline, and high-pressure gas is conveyed into the cavity 6 inside the air float block body 1 through the air inlet pipe 7. The gas entering the cavity 6 is evenly ejected through the first throttle hole 2 and a plurality of second throttle holes 4. At the same time, the first pressure grooves 3 and the second pressure grooves 5 on the outer side walls of the first throttle hole 2 and the second throttle hole 4 make it so that when the air float block body 1 passes through the guide rail joint, only part of the throttle holes lose the supporting force, and the remaining throttle holes can still work normally. This design effectively disperses the pressure, prevents the air float block from losing balance instantly due to the failure of a single throttle hole, and ensures the stability and accuracy of the air float block body 1 during the moving process. In addition, the gas ejected from the air float block body 1 forms a thin air film below, and this air film has a relatively large floating height, which can effectively reduce the friction with the guide rail.
[0029] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the purpose of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.
Claims
1. An atmospheric film over-seam air flotation block device, comprising: The air flotation block body (1), characterized in that a first throttle hole (2) is arranged above the air flotation block body (1), a first pressure groove (3) is arranged on the outer side wall of the first throttle hole (2) and at the upper end of the air flotation block body (1), a second throttle hole (4) is arranged above the air flotation block body (1), a second pressure groove (5) is arranged on the outer side wall of the second throttle hole (4) and at the upper end of the air flotation block body (1), a cavity (6) is arranged inside the air flotation block body (1), and an air inlet pipe (7) is arranged on one side of the air flotation block body (1).
2. The air film through-seam air flotation block device according to claim 1, characterized in that The number of the first pressure grooves (3) is eight, and the eight first pressure grooves (3) are symmetrically distributed with the center of the first throttle hole (2) as the central axis.
3. The air film through-seam air flotation block device according to claim 1, characterized in that, The number of the second throttle holes (4) is eight, and the eight second throttle holes (4) are symmetrically distributed with the center of the first throttle hole (2) as the central axis.
4. The air film through-seam air flotation block device according to claim 1, characterized in that, The number of the second pressure grooves (5) is three, and the three second pressure grooves (5) are symmetrically distributed with the center of the first throttle hole (2) as the central axis.
5. The air film through-seam air flotation block device according to claim 1, characterized in that, The cavity (6) is communicated with the air inlet pipe (7), the first throttle hole (2) and the second throttle hole (4).
6. The air film through-seam air flotation block device according to claim 1, characterized in that, A switch valve (701) is arranged on one side of the air inlet pipe (7).