Rotary sealing structure

Abstract

The invention belongs to the technical field of chip cleaning, and discloses a rotary sealing structure which is installed on a workbench above a driving mechanism and comprises a rotating shaft pipe with the lower end connected with the driving mechanism, and the upper portion of the rotating shaft pipe penetrates through the workbench and extends into a process area. The rotating shaft pipe is sleeved with a fixing seat, the lower end of the fixing seat is in sealed connection with the workbench, the upper portion of the fixing seat is rotationally connected with a sealed bearing shell which is sleeved outside the rotating shaft pipe, and the sealed bearing shell is in sealed fit with the outer wall of the fixing seat. The upper end of the sealed bearing shell is in sealed connection with a corrugated pipe sleeving the rotating shaft pipe, the upper end of the corrugated pipe is in sealed connection with a supporting block, and a nozzle assembly is installed on one side of the supporting block; the upper end of the rotating shaft pipe is connected with the supporting block, a liquid guide pipe is arranged in the rotating shaft pipe, and the upper end of the liquid guide pipe is connected with the nozzle combination. According to the invention, chip cleaning is realized under the condition of ensuring sealing.

Description

Technical Field

[0001] The invention belongs to the technical field of chip cleaning, and in particular relates to a rotary sealing structure. Background Art

[0002] The existing chip cleaning equipment usually installs a workbench in the middle of the cleaning box, the lower part of the workbench is the mechanical area, the upper part of the workbench is the process area for cleaning the chips, and the liquid guide tube with a nozzle assembly at the upper end is installed on the workbench. The outer shell of the liquid guide tube is connected to a rotating shaft tube connected to the nozzle assembly, and a driving mechanism connected to the rotating shaft tube is arranged in the mechanical area, so that the rotating shaft tube is controlled by the driving mechanism to drive the nozzle assembly to rise and fall and rotate in the process area, so as to better clean the chips in the process area. However, this structure easily forms a gap between the rotating shaft tube and the workbench, so that the liquid in the process area flows into the mechanical area through the gap, which will cause corrosion to the equipment in the mechanical area. Therefore, it is necessary to design a sealing structure to solve this problem. Summary of the invention

[0003] The object of the present invention is to provide a rotary sealing structure to solve the above problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A rotary sealing structure is installed on a workbench above a driving mechanism, comprising a rotating shaft tube whose lower end is connected to the driving mechanism, and the upper part of the rotating shaft tube passes through the workbench and extends into the process area; a fixed seat is connected to the outer surface of the rotating shaft tube, the lower end of the fixed seat is sealed and connected to the workbench, the upper part of the fixed seat is rotatably connected to a sealed bearing shell sleeved on the outside of the rotating shaft tube, and the sealed bearing shell is sealed and matched with the outer wall of the fixed seat; the upper end of the sealed bearing shell is sealed and connected to a bellows sleeved on the outside of the rotating shaft tube, the upper end of the bellows is sealed and connected to a support block, and a nozzle assembly is installed on one side of the support block; the upper end of the rotating shaft tube is connected to the support block, a liquid guide tube is arranged in the rotating shaft tube, and the upper end of the liquid guide tube is connected to the nozzle assembly.

[0006] As a preferred technical solution in the present invention, a support ring is protruded on the outer wall of the upper end of the fixed seat, and the upper end of the support ring is rotatably connected to the inner top surface of the sealed bearing housing; the lower end of the sealed bearing housing is equipped with a sealed bearing located below the support ring, and the upper end of the sealed bearing is rotatably connected to the lower end of the support ring; the sealed bearing is sleeved on the outside of the fixed seat, and an annular mounting groove is opened on the inner wall of the sealed bearing, and a sealing strip that seals with the outer wall of the fixed seat is installed in the annular mounting groove.

[0007] As a preferred technical solution in the present invention, the inner top surface of the sealed bearing housing is spaced apart from the upper end of the support ring, the inner top surface of the sealed bearing housing is provided with a first upper ring groove, the upper end of the support ring is provided with a first lower ring groove corresponding to the first upper ring groove, and a plurality of first balls are arranged between the first upper ring groove and the first lower ring groove.

[0008] As a preferred technical solution in the present invention, the lower end of the support ring is spaced apart from the upper end of the sealing bearing, a second upper ring groove is provided at the lower end of the support ring, a second lower ring groove corresponding to the second upper ring groove is provided at the upper end of the sealing bearing, and a plurality of second balls are provided between the second upper ring groove and the second lower ring groove.

[0009] As a preferred technical solution in the present invention, the lower end of the support block is fixedly connected to a base, the lower end of the base is connected to the upper end of the corrugated pipe, and the base is sleeved outside the rotating shaft pipe.

[0010] As a preferred technical solution in the present invention, an upper connecting flange is fixed to the upper end of the bellows, and a lower connecting flange is fixed to the lower end of the bellows. The upper connecting flange is connected to the base by bolts, and the lower connecting flange is connected to the sealed bearing housing by bolts.

[0011] As a preferred technical solution in the present invention, sealing gaskets are arranged between the fixing seat and the workbench, between the sealing bearing housing and the lower connecting flange, and between the base and the upper connecting flange.

[0012] As a preferred technical solution in the present invention, a positioning hole is provided on the outer wall of the base, a positioning groove is provided on the outer wall of the rotating shaft tube corresponding to the positioning hole, and a positioning pin is inserted in the positioning hole and the positioning groove.

[0013] As a preferred technical solution in the present invention, an L-shaped channel is provided in the support block, one end of the L-shaped channel faces and is connected to the shaft tube, and the other end of the L-shaped channel is connected to the nozzle assembly.

[0014] Beneficial effects: The nozzle assembly, support block, bellows, sealed bearing housing, fixed seat and workbench in the present invention are sealed and connected in sequence from top to bottom, so that a sealed cavity is formed inside the structure, which can prevent the liquid in the process area from entering the sealed cavity and then flowing down to the mechanical area, causing corrosion to the equipment in the mechanical area; at the same time, the present invention arranges the rotating shaft tube in the sealed cavity and connects it with the support block, so that when the rotating shaft tube is controlled by the driving mechanism to rotate and lift and lower, the force can be transmitted to the support block, and the sealed bearing housing in the present invention is rotatably connected to the fixed seat, so that the nozzle assembly, support block, bellows and sealed bearing housing can rotate synchronously relative to the fixed seat, and then the nozzle assembly can be driven to rotate and adjust under the force of the rotating shaft tube. Similarly, the bellows itself has the function of telescopic adjustment, so that the support block and the nozzle assembly can be lifted and lowered under the force of the rotating shaft tube, and then the clean area guided by the liquid guide tube is sprayed to the designated position of the clean area, and then the chip cleaning is achieved while ensuring sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 It is a three-dimensional schematic diagram of the present invention.

[0018] In the figure: 1-workbench; 2-rotating shaft tube; 3-fixed seat; 4-sealed bearing housing; 5-bellows; 6-support block; 7-nozzle assembly; 8-liquid guide tube; 9-sealed bearing; 901-annular mounting groove; 10-base; 1001-positioning hole. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0020] Example:

[0021] like Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides a rotary sealing structure, which is installed on a workbench 1 above a driving mechanism, and includes a rotating shaft tube 2 whose lower end is connected to the driving mechanism. The rotating shaft tube 2 can be rotated and raised and lowered under the control of the driving mechanism, and the upper part of the rotating shaft tube 2 passes through the workbench 1 and extends into the process area; the rotating shaft tube 2 is outer-connected with a fixing seat 3, and the lower end of the fixing seat 3 is sealed with the workbench 1, for example, by a sealing strip to achieve sealing to ensure the sealing effect, and the upper part of the fixing seat 3 is rotatably connected with a sealed bearing housing 4 sleeved on the outside of the rotating shaft tube 2, and the sealed bearing housing 4 is sealed with the outer wall of the fixing seat 3, while ensuring the sealing performance, the sealed bearing housing 4 can stably rotate on the fixing seat 3; the upper end of the sealed bearing housing 4 is sealed and connected to the outer wall of the rotating shaft tube 2, and the sealing effect is ensured by the sealing effect. A bellows 5 is connected to the outside of the rotating shaft tube 2, and the upper end of the bellows 5 is sealed and connected to a support block 6. A nozzle assembly 7 is installed on one side of the support block 6, so that the whole forms a sealed structure to prevent liquid from entering the interior; the upper end of the rotating shaft tube 2 is connected to the support block 6, and when the driving mechanism controls the rotation of the rotating shaft tube 2, the rotating connection between the sealed bearing housing 4 and the fixed seat 3 can meet the rotation requirement of the nozzle assembly 7. When the driving mechanism controls the lifting and lowering adjustment of the rotating shaft tube 2, the bellows 5 can be telescopically adjusted to meet the lifting and lowering adjustment of the nozzle assembly 7. A liquid guide tube 8 is arranged in the rotating shaft tube 2, and the upper end of the liquid guide tube 8 is connected to the nozzle assembly 7, so that the cleaning liquid can be input into the nozzle assembly 7 through the liquid guide tube 8, and then the chips in the process area are cleaned.

[0022] The nozzle assembly 7, support block 6, bellows 5, sealed bearing housing 4, fixed seat 3 and workbench 1 in the present invention are sealed and connected in sequence from top to bottom, so that a sealed cavity is formed inside the structure, which can prevent the liquid in the process area from entering the sealed cavity and then flowing down to the mechanical area, causing corrosion to the equipment in the mechanical area; at the same time, the present invention arranges the rotating shaft tube 2 in the sealed cavity and connects it with the support block 6, so that when the rotating shaft tube 2 is controlled by the driving mechanism to rotate and lift and lower, the force can be transmitted to the support block 6, and the sealed bearing housing 4 in the present invention is rotatably connected to the fixed seat 3, so that the nozzle assembly 7, support block 6, bellows 5 and sealed bearing housing 4 can be synchronously rotated relative to the fixed seat 3, and then the nozzle assembly 7 can be driven to rotate and adjust under the force of the rotating shaft tube 2. Similarly, the bellows 5 itself has the function of telescopic adjustment, so that the support block 6 and the nozzle assembly 7 can be lifted and lowered under the force of the rotating shaft tube 2, and then the clean area guided by the liquid guide tube 8 is sprayed to the designated position of the clean area, and then the chip cleaning is achieved while ensuring sealing.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that a support ring is convexly provided on the outer wall of the upper end of the fixed seat 3, so that the fixed seat 3 forms an I-shaped column structure, and the upper end of the support ring is rotatably connected to the inner top surface of the sealed bearing housing 4, so as to support the sealed bearing housing 4 and ensure the flexibility of the sealed bearing housing 4; the lower end of the sealed bearing housing 4 is installed with a sealed bearing 9 located below the support ring, and the upper end of the sealed bearing 9 is rotatably connected to the lower end of the support ring, which also does not affect the flexibility of the sealed bearing housing 4; the sealed bearing 9 is sleeved on the outside of the fixed seat 3, and an annular mounting groove 901 is opened on the inner wall of the sealed bearing 9, and a sealing strip that seals with the outer wall of the fixed seat 3 is installed in the annular mounting groove 901, thereby ensuring the sealing between the fixed seat 3 and the sealed bearing housing 4.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the inner top surface of the sealed bearing housing 4 is spaced apart from the upper end of the support ring, the inner top surface of the sealed bearing housing 4 is provided with a first upper ring groove, and the upper end of the support ring is provided with a first lower ring groove corresponding to the first upper ring groove, and a plurality of first balls are arranged between the first upper ring groove and the first lower ring groove, so that a bearing-like rotation effect is formed between the two, which reduces friction and improves flexibility while ensuring stability.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the lower end of the support ring is spaced apart from the upper end of the sealing bearing 9, a second upper ring groove is provided at the lower end of the support ring, and a second lower ring groove corresponding to the second upper ring groove is provided at the upper end of the sealing bearing 9, and a plurality of second balls are provided between the second upper ring groove and the second lower ring groove, so that a bearing-like rotation effect is formed between the two, which reduces friction and improves flexibility while ensuring stability.

[0026] As a preferred implementation scheme in this embodiment, it needs to be further explained that the lower end of the support block 6 is fixedly connected to the base 10, the lower end of the base 10 is connected to the upper end of the corrugated tube 5, and the base 10 is sleeved on the outside of the rotating shaft tube 2. This point can be set according to the structure of the support block 6, and the base 10 can be integrally formed with the support block 6, and can also be detachably connected to the support block 6, without specific restrictions.

[0027] As a preferred implementation scheme in this embodiment, it needs to be further explained that an upper connecting flange is fixed to the upper end of the bellows 5, and a lower connecting flange is fixed to the lower end of the bellows 5. The upper connecting flange is connected to the base 10 by bolts, and the lower connecting flange is connected to the sealed bearing housing 4 by bolts, so that the loading and unloading of the structure is more convenient.

[0028] As a preferred implementation scheme in this embodiment, it needs to be further explained that sealing gaskets are arranged between the fixed seat 3 and the workbench 1, between the sealed bearing housing 4 and the lower connecting flange, and between the base 10 and the upper connecting flange to further improve the sealing of the connection position.

[0029] As a preferred implementation scheme in this embodiment, it needs to be further explained that a positioning hole 1001 is opened on the outer wall of the base 10, and a positioning groove is opened on the outer wall of the rotating shaft tube 2 corresponding to the positioning hole, and a positioning pin is inserted in the positioning hole 1001 and the positioning groove to realize the connection between the rotating shaft tube 2 and the base 10, and then the base 10 can be driven to rotate and lift and lower through the rotating shaft tube 2.

[0030] As a preferred implementation scheme in this embodiment, it needs to be further explained that an L-shaped channel is provided in the support block 6, one end of the L-shaped channel faces and is connected to the rotating shaft tube 2, and the other end of the L-shaped channel is connected to the nozzle assembly 7, so that the liquid guide tube 8 passes through the rotating shaft tube 2 and enters the support block 6 and is connected with the nozzle assembly 7.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary sealing structure, mounted on a workbench (1) above a driving mechanism, characterized in that: The invention comprises a rotating shaft tube (2) whose lower end is connected to a driving mechanism, and whose upper part passes through a workbench (1) and extends into a process area; a fixed seat (3) is connected to the outer shell of the rotating shaft tube (2), whose lower end is sealed to the workbench (1), whose upper part is rotatably connected to a sealed bearing housing (4) sleeved on the outside of the rotating shaft tube (2), and whose sealed bearing housing (4) is in sealing cooperation with the outer wall of the fixed seat (3); a bellows (5) is sealed to the upper end of the sealed bearing housing (4) sleeved on the outside of the rotating shaft tube (2), whose upper end is sealed to a support block (6), and whose one side is provided with a nozzle assembly (7); the upper end of the rotating shaft tube (2) is connected to the support block (6), and a liquid guide tube (8) is arranged in the rotating shaft tube (2), whose upper end is connected to the nozzle assembly (7).

2. A rotary sealing structure according to claim 1, characterized in that: A support ring is protruding from the outer wall of the upper end of the fixed seat (3), and the upper end of the support ring is rotatably connected to the inner top surface of the sealed bearing housing (4); a sealed bearing (9) located below the support ring is installed at the lower end of the sealed bearing housing (4), and the upper end of the sealed bearing (9) is rotatably connected to the lower end of the support ring; the sealed bearing (9) is sleeved on the outside of the fixed seat (3), and an annular mounting groove (901) is opened on the inner wall of the sealed bearing (9), and a sealing strip that is sealed with the outer wall of the fixed seat (3) is installed in the annular mounting groove (901).

3. A rotary sealing structure according to claim 2, characterized in that: The inner top surface of the sealed bearing housing (4) is spaced apart from the upper end of the support ring; a first upper ring groove is formed on the inner top surface of the sealed bearing housing (4); a first lower ring groove corresponding to the first upper ring groove is formed on the upper end of the support ring; and a plurality of first balls are arranged between the first upper ring groove and the first lower ring groove.

4. A rotary sealing structure according to claim 2, characterized in that: The lower end of the support ring is spaced apart from the upper end of the sealing bearing (9), a second upper ring groove is formed at the lower end of the support ring, a second lower ring groove corresponding to the second upper ring groove is formed at the upper end of the sealing bearing (9), and a plurality of second balls are arranged between the second upper ring groove and the second lower ring groove.

5. A rotary sealing structure according to claim 1, characterized in that: The lower end of the support block (6) is fixedly connected to a base (10), the lower end of the base (10) is connected to the upper end of the corrugated tube (5), and the base (10) is sleeved outside the rotating shaft tube (2).

6. A rotary sealing structure according to claim 5, characterized in that: An upper connecting flange is fixed to the upper end of the bellows (5), and a lower connecting flange is fixed to the lower end of the bellows (5). The upper connecting flange is connected to the base (10) via bolts, and the lower connecting flange is connected to the sealed bearing housing (4) via bolts.

7. A rotary seal structure according to claim 6, characterized in that: Sealing gaskets are provided between the fixing seat (3) and the workbench (1), between the sealing bearing housing (4) and the lower connecting flange, and between the base (10) and the upper connecting flange.

8. A rotary sealing structure according to any one of claims 5 to 7, characterized in that: A positioning hole (1001) is provided on the outer wall of the base (10), a positioning groove is provided on the outer wall of the rotating shaft tube (2) corresponding to the positioning hole, and a positioning pin is inserted into the positioning hole (1001) and the positioning groove.

9. A rotary sealing structure according to claim 1, characterized in that: An L-shaped channel is provided in the support block (6), one end of the L-shaped channel faces toward and is connected to the rotating shaft tube (2), and the other end of the L-shaped channel is connected to the nozzle assembly (7).

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