CN114939853A - Machining device and sealing assembly for screw vacuum pump non-drive end cover - Google Patents
Machining device and sealing assembly for screw vacuum pump non-drive end cover Download PDFInfo
- Publication number
- CN114939853A CN114939853A CN202210681457.8A CN202210681457A CN114939853A CN 114939853 A CN114939853 A CN 114939853A CN 202210681457 A CN202210681457 A CN 202210681457A CN 114939853 A CN114939853 A CN 114939853A
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- Prior art keywords
- fixedly connected
- end cover
- rod
- drive end
- arc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to the technical field of vacuum pump end cover processing, in particular to a processing device and a sealing assembly of a screw vacuum pump non-drive end cover, which comprises a rectangular base and a non-drive end cover, wherein the top of the rectangular base is provided with a clamping mechanism for fixing the non-drive end cover, and the top of the rectangular base is fixedly connected with an adjusting mechanism; fixture includes L type support, one side fixedly connected with guide bar of L type support, sliding connection has the movable support on the guide bar, it is fixed to carry out the centre gripping to the non-drive end cover through fixture, the convenience is processed the non-drive end cover, and through electric telescopic handle's extension and shrink, can make fixture and non-drive end cover correspond to shift up and move down, the convenience is adjusted the height of non-drive end cover, the convenience is processed the different positions of non-drive end cover, need not to fill up foot or bow during processing, make the processing to non-drive end cover more laborsaving.
Description
Technical Field
The invention relates to the technical field of vacuum pump end cover processing, in particular to a processing device and a sealing assembly for a screw vacuum pump non-drive end cover.
Background
The screw vacuum pump is an air pumping device which utilizes a pair of screws to perform synchronous high-speed reverse rotation in a pump shell to generate air suction and exhaust functions, and the non-driving end of the screw vacuum pump is provided with an end cover which can be installed and disassembled, so that the end cover of the non-driving end can be conveniently opened to overhaul and maintain the vacuum pump.
In-process at the non-drive end cover processing of vacuum pump, need punch to the vacuum pump, multiple manufacturing process such as polish and surface paint, manual support end cover is very hard and inconvenient operation, consequently often can use the processing equipment that has fixed establishment to fix the vacuum pump end cover, but current end cover fixed equipment, only can fix the position at single height with the end cover, inconvenient height to the end cover is adjusted, when need add man-hour to the position of co-altitude on the end cover, need operating personnel to bow or fill up the foot and just can operate.
Disclosure of Invention
The invention aims to provide a processing device and a sealing assembly for a non-driving end cover of a screw vacuum pump, so as to solve the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme:
a machining device for a non-drive end cover of a screw vacuum pump comprises a rectangular base and the non-drive end cover, wherein a clamping mechanism for fixing the non-drive end cover is arranged at the top of the rectangular base, and an adjusting mechanism is fixedly connected to the top of the rectangular base;
the clamping mechanism comprises an L-shaped support, a guide rod is fixedly connected to one side of the L-shaped support, a movable support is connected to the guide rod in a sliding mode, a hydraulic rod is fixedly connected to one side of the L-shaped support, one end of the hydraulic rod is fixedly connected with the movable support, a fixed clamp is fixedly connected to one end of the L-shaped support, and a movable clamp is fixedly connected to one end of the movable support;
the adjusting mechanism comprises an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with a movable concave frame, and linkage rods are rotatably connected between two sides of the inner wall of the movable concave frame.
Preferably, one side of the L-shaped support is fixedly connected with two sliding pipes, the top of the rectangular base is fixedly connected with two vertical round rods, and the tops of the two vertical round rods penetrate through the two sliding pipes and are fixedly connected with a top baffle respectively.
Preferably, the electric telescopic rod is fixedly installed at the top of the rectangular base, and one end, far away from the movable concave frame, of the linkage rod is rotatably connected with one side of the L-shaped support.
Preferably, the top of the rectangular base is fixedly connected with two limiting frame pipes, the two limiting frame pipes are symmetrically arranged on two sides of the movable concave frame, sliding sleeve plates are fixedly connected to two sides of the movable concave frame, and the sliding sleeve plates are connected with the limiting frame pipes in a sliding mode.
Preferably, be provided with a plurality of bearing subassemblies that are used for providing the bearing to non-drive end cover for linear array on the rectangular base, bearing subassembly include fixed connection in the support knee lever of the both sides of rectangular base, the one end fixedly connected with arc bracket of support knee lever.
Preferably, the outside of rectangular base is provided with the arc pole, the arc spout has been seted up at the top of arc pole, swing joint has sliding base on the arc pole, the spacing slide of one side fixedly connected with of sliding base, spacing slide with arc spout sliding connection, sliding base's top fixedly connected with equipment fixing platform, equipment fixing platform is provided with two, two equipment fixing platform symmetrical set up in rectangular base's both sides.
Preferably, one side fixedly connected with connecting block of sliding base, one side fixedly connected with spring of connecting block inner wall, the one end fixedly connected with locator card pole of spring, the one end fixedly connected with control link of locator card pole, control link's one end is passed in proper order the spring with the connecting block just extends to the outside of connecting block.
Preferably, the central position of arc pole has seted up first chucking hole to on the arc pole and be located the second chucking hole has all been seted up to the both sides of rectangular base, the one end of location kelly passes the second chucking hole, and location kelly with first chucking hole looks adaptation.
Preferably, fixedly connected with installation arc pole between the both ends of arc pole, one side fixedly connected with thread bush of rectangular base, one side of installation arc pole is provided with fixing bolt, fixing bolt's one end is passed installation arc pole and with thread bush threaded connection.
The utility model provides a seal assembly of non-drive end cover of screw vacuum pump, includes right the sealed lasso that the trompil was sealed on the non-drive end cover, the one end fixedly connected with direction arc dish of sealed lasso, direction arc dish with the sealed lasso is linked together.
The invention has the beneficial effects that:
carry out the centre gripping through fixture to non-drive end cover fixed, it is convenient to process non-drive end cover, need not hand non-drive end cover during processing, and through electric telescopic handle's extension and shrink, can make fixture and non-drive end cover correspond to shift up and move down, conveniently adjust the height of non-drive end cover, the height adjustment that will need the processing position is to the position that makes things convenient for handheld device to carry out processing, conveniently process the different positions of non-drive end cover, need not pad foot or bow during processing, make the processing to non-drive end cover more laborsaving.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;
FIG. 1 is a schematic structural diagram of a machining device for a non-drive-end cover of a screw vacuum pump provided by the invention;
FIG. 2 is a schematic view of the rectangular base portion of FIG. 1;
FIG. 3 is a schematic structural view of a side view portion of the non-drive-end endcap of FIG. 2;
FIG. 4 is a schematic structural view of the portion of the adjustment mechanism shown in FIG. 2;
FIG. 5 is a schematic structural view of the arcuate shank portion shown in FIG. 4;
FIG. 6 is a schematic structural view of a side view of the arcuate rod illustrated in FIG. 5;
FIG. 7 is a cross-sectional view of a top portion of the slide base of FIG. 6;
FIG. 8 is a schematic structural diagram of a seal assembly of a non-drive end cap of a screw vacuum pump according to the present invention.
The reference numbers in the figures are as follows:
1. a rectangular base, 2, a non-driving end cover, 3, a clamping mechanism, 31, an L-shaped support, 32, a guide rod, 33, a movable support, 34, a hydraulic rod, 35, a fixed clamp, 36, a movable clamp, 4, an adjusting mechanism, 41, an electric telescopic rod, 42, a movable concave frame, 43, a linkage rod, 5, a sliding pipe, 6, a vertical round rod, 7, a top baffle, 8, a limiting frame pipe, 9, a sliding sleeve plate and 10, bearing subassembly, 101, support curved bar, 102, arc bracket, 11, arc pole, 12, arc spout, 13, sliding bottom, 14, spacing slide, 15, equipment fixing platform, 16, connecting block, 17, spring, 18, locator card pole, 19, control pull rod, 20, first chucking hole, 21, second chucking hole, 22, installation arc pole, 23, threaded sleeve, 24, fixing bolt, 25, sealing ring, 26, direction arc dish.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A machining device for a non-drive end cover of a screw vacuum pump comprises a rectangular base 1 and a non-drive end cover 2, wherein a clamping mechanism 3 fixed to the non-drive end cover 2 is arranged at the top of the rectangular base 1, and an adjusting mechanism 4 is fixedly connected to the top of the rectangular base 1;
the clamping mechanism 3 comprises an L-shaped support 31, a guide rod 32 is fixedly connected to one side of the L-shaped support 31, a movable support 33 is slidably connected to the guide rod 32, a hydraulic rod 34 is fixedly connected to one side of the L-shaped support 31, one end of the hydraulic rod 34 is fixedly connected with the movable support 33, one end of the L-shaped support 31 is fixedly connected with a fixed clamp 35, and one end of the movable support 33 is fixedly connected with a movable clamp 36;
the adjusting mechanism 4 comprises an electric telescopic rod 41, one end of the electric telescopic rod 41 is fixedly connected with a movable concave frame 42, and a linkage rod 43 is rotatably connected between two sides of the inner wall of the movable concave frame 42.
The fixed clamp 35 and the movable clamp 36 are located at the same height, are made of steel, and are designed by matching with the non-driving end cover 2, so that the fixed clamp 35 and the movable clamp 36 can better clamp the non-driving end cover 2 from two sides, and the electric telescopic rod 41 is externally connected with a power supply and is externally provided with a corresponding control switch.
Two sliding tubes 5 are fixedly connected to one side of the L-shaped support 31, two vertical round rods 6 are fixedly connected to the top of the rectangular base 1, and the tops of the vertical round rods 6 penetrate through the two sliding tubes 5 and the top baffle 7.
As shown in fig. 1 to 4, the sliding tube 5 can only move in the vertical direction by passing the vertical round bar 6 through the sliding tube 5, and the L-shaped bracket 31 fixed to the sliding tube 5 can only move in the vertical direction.
The electric telescopic rod 41 is fixedly installed at the top of the rectangular base 1, and one end of the linkage rod 43, which is far away from the movable concave frame 42, is rotatably connected with one side of the L-shaped support 31.
Two spacing frame pipes 8 of the top fixedly connected with of rectangle base 1, two spacing frame pipe 8 symmetry set up in the both sides of activity concave frame 42, the equal fixedly connected with slip lagging 9 in both sides of activity concave frame 42, slip lagging 9 with spacing frame pipe 8 sliding connection.
As shown in fig. 4, the movable concave frame 42 can only move horizontally on the spacing frame pipe 8 along with the sliding sleeve plate 9 by the sliding of the sliding sleeve plate 9 on the spacing frame pipe 8.
The supporting component 10 is arranged on the rectangular base 1 in a linear array mode and used for supporting the non-driving end cover 2, the supporting component 10 comprises supporting bent rods 101 fixedly connected to two sides of the rectangular base 1, and arc-shaped brackets 102 are fixedly connected to one ends of the supporting bent rods 101.
As shown in fig. 1, 2 and 3, the support assembly 10 is located on the side of the rectangular base 1 away from the non-drive-end cap 2, and the machined non-drive-end cap can be placed in two arc-shaped brackets 102, so that the non-drive-end cap 2 can be supported from the bottom through the arc-shaped brackets 102, and the placement and storage of the non-drive-end cap 2 are facilitated.
The outside of rectangular base 1 is provided with arc pole 11, arc spout 12 has been seted up at the top of arc pole 11, swing joint has sliding base 13 on the arc pole 11, the spacing slide 14 of one side fixedly connected with of sliding base 13, spacing slide 14 with arc spout 12 sliding connection, sliding base 13's top fixedly connected with equipment fixing platform 15, equipment fixing platform 15 is provided with two, two equipment fixing platform 15 symmetry set up in rectangular base 1's both sides.
Equipment to assist in the machining of the non-drive end cap 2 may be mounted to the equipment mounting station 15.
One side fixedly connected with connecting block 16 of sliding base 13, one side fixedly connected with spring 17 of connecting block 16 inner wall, spring 17's one end fixedly connected with locator card pole 18, the one end fixedly connected with control link 19 of locator card pole 18, the one end of control link 19 is passed in proper order spring 17 with connecting block 16 just extends to the outside of connecting block 16.
As shown in fig. 1, 5 and 6, when the sliding base 13 slides on the arc-shaped rod 11, the limiting sliding plate 14 can slide in the arc-shaped sliding groove 12, so that the sliding base 13 cannot rotate when moving on the arc-shaped rod 11.
First chucking hole 20 has been seted up to the central point of arc pole 11 to on the arc pole 11 and be located the second chucking hole 21 has all been seted up to the both sides of rectangular base 1, the one end of location kelly 18 passes second chucking hole 21, and location kelly 18 with first chucking hole 20 looks adaptation.
Fixedly connected with installation arc pole 22 between the both ends of arc pole 11, one side fixedly connected with screw sleeve 23 of rectangular base 1, one side of installation arc pole 22 is provided with fixing bolt 24, fixing bolt 24's one end is passed installation arc pole 22 and with screw sleeve 23 threaded connection.
As shown in fig. 1, 5, 6 and 7, when the control pull rod 19 is manually pulled in a direction away from the connecting block 16, the positioning clamp rod 18 can be driven to disengage from the second clamping hole 21, the sliding base 13 can be moved on the arc rod 11 at this time, the sliding base 13 drives the equipment mounting table 15 to move, and when the sliding base 13 drives the equipment mounting table 15 to move to the position of the first clamping hole 20, the equipment mounting table 15 is located on one side of the auxiliary non-driving end cover 2.
When the locator card rod 18 moves to the position of the first clamping hole 20 on the arc-shaped rod 11 along with the sliding base 13, the spring 17 can extend to push the locator card rod 18, so that the locator card rod 18 passes through the first clamping hole 20, the locating of the sliding base 13 and the equipment installation platform 15 is completed, the non-driving end cover 2 can be conveniently processed through equipment fixed on the equipment installation platform 15, otherwise, the locator card rod 18 can be separated from the first clamping hole 20 when the control pull rod 19 is pulled, the sliding base 13 can be moved to drive the equipment installation platform 15 to move to two sides of the rectangular base 1, the position of the equipment installation platform 15 can be adjusted to assist in processing the non-driving end cover 2 through the equipment installation platform 15, the equipment installation platform 15 and the non-driving end cover 2 are separated after processing, and the space outside the non-driving end cover 2 is not occupied.
A sealing assembly of a non-drive end cover of a screw vacuum pump comprises a sealing ring 25 for sealing an opening on the non-drive end cover 2, wherein one end of the sealing ring 25 is fixedly connected with a guide arc disc 26, and the guide arc disc 26 is communicated with the sealing ring 25.
As shown in fig. 8, the sealing collar 25 is fixed to the inside of the non-drive end cap 2 with the guide arc 26 facing the outside so that when the bolt is passed through the non-drive end cap 2, the bolt can be passed through the sealing collar 25 at the same time, the outside of the bolt and the opening of the non-drive end cap 2 are sealed by the sealing collar 25, and the guide arc 26 can facilitate the passage of the bolt through the sealing collar 25.
The working principle of the processing device and the sealing assembly of the non-driving end cover of the screw vacuum pump provided by the invention is as follows:
as shown in fig. 1-4, when the hydraulic rod 34 is extended and retracted, the movable bracket 33 can be driven to slide on the guide rod 32, the movable bracket 33 drives the movable clamp 36 to move together, when the movable clamp 36 moves in a direction away from the fixed clamp 35, the non-drive-end cap 2 can be removed, and when the movable clamp 36 moves in a direction close to the non-drive-end cap 2, the movable clamp 36 and the fixed clamp 35 can clamp and fix the non-drive-end cap 2 from two sides.
When the electric telescopic rod 41 is controlled to extend, the electric telescopic rod 41 pushes the linkage rod 43 through the movable concave frame 42, the other end of the linkage rod 43 upwards pushes the L-shaped support 31 to move upwards, the whole clamping mechanism 3 upwards moves, the clamping mechanism 3 drives the non-driving end cover 2 fixed through the movable clamp 36 and the fixed clamp 35 to lift, otherwise, when the electric telescopic rod 41 contracts, the linkage rod 43 can be pulled through the movable concave frame 42, the other end of the linkage rod 43 downwards pulls the L-shaped support 31, and the clamping mechanism 3 drives the non-driving end cover 2 to move downwards.
Compared with the prior art, the processing device and the sealing assembly for the non-driving end cover of the screw vacuum pump have the following beneficial effects:
carry out the centre gripping through fixture 3 to non-drive end cover 2 fixed, it is convenient to process non-drive end cover 2, need not to hold by hand non-drive end cover 2 during add man-hour, and through electric telescopic handle 41's extension and shrink, can make fixture 3 and non-drive end cover 2 correspond to shift up and move down, conveniently adjust the height of non-drive end cover 2, the height control that will need the processing position is to the position that makes things convenient for handheld equipment to carry out processing, the convenience is processed non-drive end cover 2's different positions, need not to fill up foot or bow during processing, make the processing to non-drive end cover 2 more laborsaving.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.
Claims (10)
1. A processing device for a non-drive end cover of a screw vacuum pump comprises a rectangular base (1) and the non-drive end cover (2), and is characterized in that a clamping mechanism (3) for fixing the non-drive end cover (2) is arranged at the top of the rectangular base (1), and an adjusting mechanism (4) is fixedly connected to the top of the rectangular base (1);
the clamping mechanism (3) comprises an L-shaped support (31), a guide rod (32) is fixedly connected to one side of the L-shaped support (31), a movable support (33) is connected to the guide rod (32) in a sliding mode, a hydraulic rod (34) is fixedly connected to one side of the L-shaped support (31), one end of the hydraulic rod (34) is fixedly connected with the movable support (33), one end of the L-shaped support (31) is fixedly connected with a fixed clamp (35), and one end of the movable support (33) is fixedly connected with a movable clamp (36);
adjustment mechanism (4) include electric telescopic handle (41), the one end fixedly connected with activity concave frame (42) of electric telescopic handle (41), it is connected with gangbar (43) to rotate between the both sides of activity concave frame (42) inner wall.
2. The machining device for the non-drive-end cover of the screw vacuum pump is characterized in that two sliding pipes (5) are fixedly connected to one side of the L-shaped support (31), two vertical round rods (6) are fixedly connected to the top of the rectangular base (1), and the tops of the two vertical round rods (6) respectively penetrate through the two sliding pipes (5) and are fixedly connected with a top baffle (7).
3. The machining device for the non-drive-end cover of the screw vacuum pump according to claim 2, characterized in that the electric telescopic rod (41) is fixedly installed at the top of the rectangular base (1), and one end, far away from the movable concave frame (42), of the linkage rod (43) is rotatably connected with one side of the L-shaped support (31).
4. The machining device for the non-drive end cover of the screw vacuum pump is characterized in that two limiting frame pipes (8) are fixedly connected to the top of the rectangular base (1), the two limiting frame pipes (8) are symmetrically arranged on two sides of the movable concave frame (42), sliding sleeve plates (9) are fixedly connected to two sides of the movable concave frame (42), and the sliding sleeve plates (9) are slidably connected with the limiting frame pipes (8).
5. The machining device for the non-drive end cover of the screw vacuum pump is characterized in that a plurality of supporting components (10) used for supporting the non-drive end cover (2) are arranged on the rectangular base (1) in a linear array mode, the supporting components (10) comprise supporting bent rods (101) fixedly connected to two sides of the rectangular base (1), and one ends of the supporting bent rods (101) are fixedly connected with arc-shaped brackets (102).
6. The machining device for the non-drive end cover of the screw vacuum pump is characterized in that an arc-shaped rod (11) is arranged on the outer side of the rectangular base (1), an arc-shaped sliding groove (12) is formed in the top of the arc-shaped rod (11), a sliding base (13) is movably connected onto the arc-shaped rod (11), a limiting sliding plate (14) is fixedly connected to one side of the sliding base (13), the limiting sliding plate (14) is slidably connected with the arc-shaped sliding groove (12), an equipment mounting table (15) is fixedly connected to the top of the sliding base (13), two equipment mounting tables (15) are arranged on the two sides of the rectangular base (1), and the two equipment mounting tables (15) are symmetrically arranged on the two sides of the rectangular base (1).
7. The machining device for the non-drive end cover of the screw vacuum pump is characterized in that a connecting block (16) is fixedly connected to one side of the sliding base (13), a spring (17) is fixedly connected to one side of the inner wall of the connecting block (16), a positioning clamping rod (18) is fixedly connected to one end of the spring (17), a control pull rod (19) is fixedly connected to one end of the positioning clamping rod (18), and one end of the control pull rod (19) penetrates through the spring (17) and the connecting block (16) in sequence and extends to the outside of the connecting block (16).
8. The machining device for the non-drive-end cover of the screw vacuum pump is characterized in that a first clamping hole (20) is formed in the center of the arc-shaped rod (11), second clamping holes (21) are formed in the arc-shaped rod (11) and located on two sides of the rectangular base (1), one end of the positioning clamping rod (18) penetrates through the second clamping hole (21), and the positioning clamping rod (18) is matched with the first clamping hole (20).
9. The machining device for the non-drive-end cover of the screw vacuum pump is characterized in that a mounting arc rod (22) is fixedly connected between two ends of the arc rod (11), a threaded sleeve (23) is fixedly connected to one side of the rectangular base (1), a fixing bolt (24) is arranged on one side of the mounting arc rod (22), and one end of the fixing bolt (24) penetrates through the mounting arc rod (22) and is in threaded connection with the threaded sleeve (23).
10. A seal assembly for a non-drive end cap of a screw vacuum pump, comprising a sealing collar (25) for sealing an opening in the non-drive end cap (2) according to claim 1, wherein a guide arc disc (26) is fixedly connected to one end of the sealing collar (25), and the guide arc disc (26) is communicated with the sealing collar (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210681457.8A CN114939853A (en) | 2022-06-15 | 2022-06-15 | Machining device and sealing assembly for screw vacuum pump non-drive end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210681457.8A CN114939853A (en) | 2022-06-15 | 2022-06-15 | Machining device and sealing assembly for screw vacuum pump non-drive end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114939853A true CN114939853A (en) | 2022-08-26 |
Family
ID=82911657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210681457.8A Withdrawn CN114939853A (en) | 2022-06-15 | 2022-06-15 | Machining device and sealing assembly for screw vacuum pump non-drive end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114939853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889042A (en) * | 2022-10-25 | 2023-04-04 | 太仓申立金属制品有限公司 | End cover surface spraying device for air conditioner compressor |
-
2022
- 2022-06-15 CN CN202210681457.8A patent/CN114939853A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889042A (en) * | 2022-10-25 | 2023-04-04 | 太仓申立金属制品有限公司 | End cover surface spraying device for air conditioner compressor |
| CN115889042B (en) * | 2022-10-25 | 2023-10-13 | 太仓申立金属制品有限公司 | End cover surface spraying device for air conditioner compressor |
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Application publication date: 20220826 |