Anti-fouling sealing structure for gear milling
By using seals composed of copper rings and iron rings in milling teeth processing, the problem of wear of traditional sealing methods is solved, barriers to metal debris and effective discharge of wastewater are achieved, and processing accuracy and equipment life are improved.
Patent Information
- Application Number
- CN202422570231.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Traditional sealing methods are prone to wear during milling teeth processing, and cannot effectively block cutting fluid and metal debris, affecting processing accuracy and equipment life.
The sealing assembly is adopted, including a sealing ring, a mounting piece and a seal. The sealing piece consists of a copper ring and an iron ring. It blocks metal debris through a toothed structure and discharges sewage by centrifugation, forming an effective sealing and sewage discharge channel.
Effectively block metal debris from entering the milling gear box, protect the bearings, reduce internal pollution, and extend the service life of the equipment.
Smart Images
Figure CN223120615U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of machining, and particularly to an anti-pollution sealing structure for milling tooth machining. Background Art
[0002] In machining, especially in milling tooth machining, the sealing performance of the machine tool is crucial for ensuring machining accuracy and equipment life. In the long-term use of traditional sealing methods, common sealing rings made of rubber or silicone are used. To a certain extent, these materials can block pollutants, but they are prone to wear during long-term use and are insufficient in adapting to high-temperature and high-speed cutting environments; during the long-term use of traditional sealing methods, the sealing performance will gradually decline, and they cannot effectively block cutting fluid and metal chips, resulting in pollution inside the machine tool, thereby affecting machining accuracy and equipment life. Utility Model Content
[0003] In order to improve the problem that metal chips enter the milling tooth box and damage the bearings during cutter head machining, and the problem that coolant splashes into the milling tooth box and water accumulates, this application provides an anti-pollution sealing structure for milling tooth machining.
[0004] An anti-pollution sealing structure for milling tooth machining provided by this application adopts the following technical solutions:
[0005] An anti-pollution sealing structure for milling tooth machining includes a cutter head, a transmission shaft, a bearing, a milling tooth box, and a sealing component. The transmission shaft is rotatably arranged on the milling tooth box, and the cutter head is installed on the transmission shaft; the bearing is detachably sleeved on the transmission shaft, and the sealing component is located on both sides of the cutter head for blocking the chips generated during cutter head machining and blocking sewage from entering the milling tooth box; wherein, the sealing component includes a sealing ring, a mounting part, and a sealing element. The mounting part is installed at the end of the transmission shaft rotatably arranged on the milling tooth box, the sealing ring is clamped on the transmission shaft, the sealing element is installed on the mounting part, and a gap for sewage discharge is formed between the mounting part and the sealing element.
[0006] By adopting the above technical solutions, a sealing component is installed on the transmission shaft of the milling tooth box to seal and block metal chips and coolant. The metal chips are effectively blocked outside the milling tooth box by the sealing element to prevent the metal chips from entering the milling tooth box and affecting its machining accuracy and service life, effectively protecting the bearings inside the milling tooth box. The formed gap effectively discharges the infiltrated sewage in an orderly manner, reduces the retention of internal sewage, and reduces the pollution effect on the inside of the milling tooth box.
[0007] Optionally, the sealing element includes a copper ring and an iron ring, and the iron ring is sleeved on the periphery of the copper ring.
[0008] By adopting the above technical solution, the sealed space formed by the iron ring and the copper ring effectively blocks the metal debris generated during the machining process of the cutter head, preventing damage to the bearings on the internal transmission shaft and being able to resist most water sources.
[0009] Optionally, the mounting member includes an end cover and a bearing cover. The end cover is mounted on the milling tooth box, the inner wall of the end cover is in contact with the outer wall of the iron ring, the bearing cover is mounted on the transmission shaft, and the outer wall of the bearing cover is in contact with the inner wall of the copper ring.
[0010] By adopting the above technical solution, the end cover and the milling tooth box are fixed by fastening bolts, the bearing cover and the transmission shaft are fastened by fastening bolts. After the copper ring and the iron ring are engaged with each other, they are installed between the end cover and the bearing cover. As the transmission shaft and the bearing cover rotate, the iron ring and the copper ring rotate together along the axis of the transmission shaft.
[0011] Optionally, a plurality of through grooves are formed in the iron ring along its circumferential direction, an arc-shaped groove is formed in the end cover, and the through grooves are communicated with the arc-shaped groove.
[0012] By adopting the above technical solution, it is convenient to collect the water seeping into the gap between the iron ring and the copper ring along the through grooves into the arc-shaped groove.
[0013] Optionally, the cross-sections of the iron ring and the copper ring are both in a tooth shape, and the iron ring and the copper ring are engaged and matched.
[0014] By adopting the above technical solution, the tooth shape on the cross-section of the iron ring is adapted to the tooth shape of the cross-section of the copper ring, improving the installation tightness. The coolant splashes into the gap between the copper ring and the iron ring, and the tooth-shaped cross-section reduces the amount of water seeping in.
[0015] Optionally, a drain hole is formed in the end cover, and the drain hole is communicated with the arc-shaped groove.
[0016] By adopting the above technical solution, the drain hole in the end cover communicates the arc-shaped groove with the outside of the end cover, facilitating the discharge of the water in the arc-shaped groove therefrom, and reducing the further infiltration of the coolant splashing during machining into the milling tooth box.
[0017] Optionally, chucks are further installed on both sides of the cutter head. The chucks are rotationally matched with the transmission shaft, and the chucks are engaged and matched with the cutter head.
[0018] By adopting the above technical solution, the shape of the chuck is integrally formed with protrusions on both sides. The chuck clamps and installs the cutter head and the transmission shaft, facilitating the rotation of the transmission shaft to drive the cutter head to rotate.
[0019] Optionally, the copper ring is provided with a groove for the volume of water flow, and the groove is communicated with the through groove.
[0020] By adopting the above technical solution, the groove on the copper ring is used to hold the water source that seeps from the outside to the inside of the milling tooth box during the processing. The water flow in the groove further flows through the through groove, facilitating the water flow to be thrown out of the groove into the through groove by centrifugal force when the transmission shaft rotates.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. The seal on the transmission shaft effectively blocks the metal debris generated during the machining of the cutter head, protecting the bearings in the milling tooth box to prevent them from entering the milling tooth box and affecting the machining accuracy.
[0023] 2. After the cutter head and the transmission shaft rotate, the seal connected to the transmission shaft is driven to rotate together. The seal throws the infiltrated sewage to the gap by centrifugal force, thereby effectively discharging the sewage and improving the service life inside the milling tooth box. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0025] Figure 1 It is a cross-sectional view showing an anti-fouling seal structure for milling tooth machining in the present application.
[0026] Figure 2 It shows in the present application Figure 1 An enlarged view taken along the direction A.
[0027] Figure 3 It is a partial cross-sectional view showing the seal assembly in the present application.
[0028] Figure 4 It is a schematic structural view showing the seal in the present application.
[0029] Reference numerals: 1, cutter head; 2, transmission shaft; 3, bearing; 4, milling tooth box; 5, seal assembly; 51, sealing ring; 52, mounting member; 53, seal; 54, gap; 531, copper ring; 532, iron ring; 521, end cover; 522, bearing cover; 6, through groove; 7, arc groove; 8, drain hole; 9, chuck; 10, groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] The following will further describe the present application in detail Figure 1 in conjunction with the attached Figure 4 drawings.
[0031] The embodiment of the present application discloses an anti-fouling seal structure for milling tooth machining.
[0032] Reference Figure 1 and Figure 2 As shown, it includes a cutter head 1, a transmission shaft 2, a bearing 3, a milling tooth box 4 and a sealing assembly 5. The transmission shaft 2 is rotatably arranged on the milling tooth box 4, and the cutter head 1 is fixed on the transmission shaft 2; The bearing 3 and the transmission shaft 2 are in transitional fit, and the sealing assembly 5 is located on both sides of the cutter head 1, used to block the debris generated during the processing of the cutter head 1 and prevent sewage from entering the milling tooth box 4;
[0033] See Figure 2 and Figure 3 As shown, the sealing assembly 5 is composed of a sealing ring 51, a mounting part 52 and a sealing member 53. The mounting part 52 is installed at the end of the transmission shaft 2 rotatably arranged on the milling tooth box 4. The sealing ring 51 is clamped on the transmission shaft 2, and the sealing ring 51 is installed on one side of the bearing 3. The sealing member 53 is fixed on the transmission shaft 2. A gap 54 for discharging sewage is formed between the mounting part 52 and the sealing member 53. The sealing member 53 is composed of a copper ring 531 and an iron ring 532. The iron ring 532 is sleeved on the periphery of the copper ring 531. The mounting part 52 is composed of an end cover 521 and a bearing 3 cover. The end cover 521 is installed on the milling tooth box 4, the inner wall of the end cover 521 is in contact with the outer wall of the iron ring 532, the bearing 3 cover is installed on the transmission shaft 2, and the outer wall of the bearing 3 cover is in contact with the inner wall of the copper ring 531. The end cover 521 and the milling tooth box 4 are locked by fastening bolts, and the bearing 3 cover and the transmission shaft 2 are fastened by locking bolts. There are multiple helical gear sets and a driving motor in the milling tooth box 4. When the driving motor drives the multiple helical gear sets to transmit, the transmission shaft 2 is driven to rotate by the overall transmission system in the milling tooth box 4, and the sealing member 53 also rotates along with the transmission shaft 2.
[0034] See Figure 4 As shown, a plurality of through grooves 6 are formed in the iron ring 532 along its circumferential direction, and an arc groove 7 is formed in the end cover 521. The through grooves 6 and the arc groove 7 are connected. The cross-sections of the iron ring 532 and the copper ring 531 are both tooth-shaped, and the iron ring 532 and the copper ring 531 are clamped and matched. In this embodiment, six through grooves 6 are formed, and the cross-section is a tooth shape with multiple slopes, which is convenient for blocking a large amount of coolant.
[0035] See Figure 3 As shown, a drain hole 8 is formed in the end cover 521, and the drain hole 8 is connected to the arc groove 7. The copper ring 531 is provided with a groove 10 for volumetric water flow, and the groove 10 is connected to the through groove 6. The sewage in the groove 10 rotates along with the transmission shaft 2 and flows into the arc groove 7 along the through groove 6, and finally is discharged uniformly through the drain hole 8 of the end cover 521, forming a good sewage discharge channel for the sewage in the sealing member 53.
[0036] See Figure 2 and Figure 4As shown in the figure, chucks 9 are also installed on both sides of the cutter head 1. The chuck 9 is rotationally engaged with the transmission shaft 2, and the chuck 9 is snap-connected with the cutter head 1. The cutter head 1 and the chuck 9 are engaged by snap connection, which is convenient for the disassembly, installation and replacement of the cutter head 1 and convenient for the staff to operate simply.
[0037] The implementation principle of an anti-fouling and sealing structure for milling tooth processing in an embodiment of the present application is as follows: during the processing of the cutter head 1, after the transmission shaft 2 rotates to drive the cutter head 1 to rotate, the iron ring 532 and the copper ring 531 installed on the transmission shaft 2 are driven together. Since metal chips will be generated during the processing of the cutter head 1, a copper ring 531 and an iron ring 532 that are tightly clamped with each other are installed at the end of the transmission shaft 2 rotating on the milling tooth box 4, so that the metal chips are effectively blocked to protect the use of the bearing 3 in the milling tooth box 4;
[0038] Coolant is continuously sprayed on the processed surface of the workpiece. Part of the coolant splashes into the milling tooth box 4 and seeps into the inside of the milling tooth box 4. Since the iron ring 532 and the copper ring 531 have a tight tooth-shaped structure, when the sewage enters, most of it is blocked in the annular groove 10. The sewage is driven by the rotation of the transmission shaft 2 to move centrifugally and is thrown into the arc-shaped groove 7 along the through groove 6, so that the sewage on the inner wall of the arc-shaped groove 7 is discharged along the drain hole 8, reducing the accumulation and pollution of the coolant inside the milling tooth box 4 to prevent the shortening of the service life of the equipment.
[0039] Unless otherwise defined, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. Words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0040] The above are all preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.
Claims
1. An anti-fouling sealing structure for milling tooth machining, characterized in that: It includes a cutter head (1), a transmission shaft (2), a bearing (3), a milling tooth box (4) and a sealing assembly (5). The transmission shaft (2) is rotatably arranged on the milling tooth box (4), and the cutter head (1) is installed on the transmission shaft (2); the bearing (3) is detachably sleeved on the transmission shaft (2); the sealing assembly (5) is located on both sides of the cutter head (1) and is used to block the debris generated during the processing of the cutter head (1) and prevent sewage from entering the milling tooth box (4). Wherein, the sealing assembly (5) includes a sealing ring (51), a mounting member (52) and a sealing element (53). The mounting member (52) is installed at the end of the transmission shaft (2) rotatably arranged on the milling tooth box (4). The sealing ring (51) is clamped on the transmission shaft (2). The sealing element (53) is installed on the mounting member (52), and a gap (54) for sewage discharge is formed between the mounting member (52) and the sealing element (53).
2. A pollution-proof sealing structure for gear milling processing according to claim 1, characterized in that: The sealing element (53) includes a copper ring (531) and an iron ring (532), and the iron ring (532) is sleeved on the periphery of the copper ring (531).
3. The anti-fouling sealing structure for milling tooth machining according to claim 2, wherein: The mounting member (52) includes an end cover (521) and a bearing (3) cover. The end cover (521) is installed on the milling tooth box (4), the inner wall of the end cover (521) is in contact with the outer wall of the iron ring (532), the bearing (3) cover is installed on the transmission shaft (2), and the outer wall of the bearing (3) cover is in contact with the inner wall of the copper ring (531).
4. A anti-pollution sealing structure for milling tooth machining according to claim 3, characterized in that: A plurality of through grooves (6) are formed in the iron ring (532) along its circumferential direction, and an arc groove (7) is formed in the end cover (521), and the through groove (6) is communicated with the arc groove (7).
5. The anti-fouling and sealing structure for milling tooth machining according to claim 4, wherein: The cross sections of the iron ring (532) and the copper ring (531) are both in a tooth shape, and the iron ring (532) and the copper ring (531) are clamped and matched with each other.
6. The anti-fouling and sealing structure for milling tooth machining according to claim 4, characterized in that: A drain hole (8) is formed in the end cover (521), and the drain hole (8) is communicated with the arc groove (7).
7. A anti-fouling sealing structure for milling tooth machining according to claim 6, characterized in that: Chucks (9) are further installed on both sides of the cutter head (1). The chucks (9) are rotationally matched with the transmission shaft (2), and the chucks (9) are clamped and matched with the cutter head (1).
8. A anti-pollution sealing structure for milling tooth machining according to claim 4, characterized in that: The copper ring (531) is provided with a groove (10) for volumetric water flow, and the groove (10) is communicated with the through groove (6).