CN210476135U - Planet carrier assembling equipment - Google Patents
Planet carrier assembling equipment Download PDFInfo
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- CN210476135U CN210476135U CN201921404606.6U CN201921404606U CN210476135U CN 210476135 U CN210476135 U CN 210476135U CN 201921404606 U CN201921404606 U CN 201921404606U CN 210476135 U CN210476135 U CN 210476135U
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- planet carrier
- supporting seat
- pillar
- fastening
- sleeve
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Abstract
The utility model discloses a planet carrier equipment, it includes workstation and pushing down the mechanism, the supporting seat is installed to the up end of workstation, the up end of supporting seat is equipped with the installation component, the installation component includes the sleeve pipe and the pillar of coaxial vertical setting, the sleeve pipe install in the supporting seat, the pillar coaxial nestification in the cover is intraductal, the pinhole has been seted up to the up end circumference of pillar, pushing down the mechanism and being connected with down the pressure head, the lower terminal surface of pressure head is vertical to be seted up the jack with the coaxial setting of pillar down. The utility model discloses insert the planet carrier body respectively with output shaft and gear pin axle from the two sides and assemble, improved assembly efficiency, reduced artifical intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of the technique of planet carrier and specifically relates to a planet carrier equipment is related to.
Background
The planet carrier is one of the main components of the planetary gear transmission device, and the planet wheel shaft or the bearing is arranged on the planet carrier. The reasonable structure of the planet carrier should be light in weight, good in rigidity and convenient to process and assemble. The common structural forms of the composite plate include a double-side-plate integral type, a double-side-plate split type and a single-side-plate type.
The two sides of the planet carrier body are respectively connected with the output shaft and the plurality of gear pins to form a planet carrier, the output shaft is coaxially connected with the planet carrier body, and the plurality of gear pins are circumferentially arranged on the end surface of the planet carrier body. In actual production, the output shaft and the gear pin shaft are manually inserted into the planet carrier body from two sides respectively for assembly, manual assembly is achieved, the working efficiency is low, and the labor intensity is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a planet carrier equipment inserts planet carrier body respectively with output shaft and gear pin axle from the two sides and assembles, has improved assembly efficiency, has reduced artifical intensity of labour.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a planet carrier equipment, includes workstation and pushing down the mechanism, the supporting seat is installed to the up end of workstation, the up end of supporting seat is equipped with the installation component, the installation component includes the sleeve pipe and the pillar of coaxial vertical setting, the bushing installation in the supporting seat, the pillar coaxial nestification in the cover pipe, the pinhole has been seted up to the up end circumference of pillar, pushing down the mechanism and being connected with down the pressure head, the lower terminal surface of pressure head is vertical to be seted up the jack with the coaxial setting of pillar down.
Through adopting above-mentioned technical scheme, the delivery outlet has been seted up along the axial in the terminal surface center of planet carrier body, and the round pin shaft hole has been seted up to the terminal surface circumference of planet carrier body. An operator vertically inserts the gear pin shaft into the pin hole on the upper end face of the support column, places the pin hole of the planet carrier body corresponding to the gear pin shaft, inserts the output shaft into the insertion hole, starts the pressing mechanism to drive the pressing head and the output shaft to descend, and inserts the output shaft into the output hole in the center of the end face of the planet carrier body; simultaneously, the pushing head drives the planet carrier body to descend, the gear pin shaft is inserted into the pin shaft hole of the planet carrier body, and meanwhile the assembly of the planet carrier body, the gear pin shaft, the planet carrier body and the output shaft is completed, so that the assembly efficiency is improved, and the labor intensity of workers is reduced.
The utility model discloses further set up to: the upper end face of the supporting seat is provided with a horizontal fixed disk, the lower end of the sleeve is coaxially fixed with a chassis, and the chassis is coaxially connected above the fixed disk through bolts.
Through adopting above-mentioned technical scheme, chassis adapter sleeve, fixed disk joint support seat, the chassis is connected with the fixed disk, has increased the area of contact of sleeve pipe with the supporting seat, makes the sleeve pipe install on a supporting bench more firmly, and the sleeve pipe supports the pillar fixedly, makes the in-process of pillar and sleeve pipe equipment of pushing down under the pressure head more stable, does benefit to the effect of guaranteeing the assembly. The chassis is connected with the fixed disk through bolts, so that the chassis is convenient to disassemble and assemble while having high fixity.
The utility model discloses further set up to: and a locking bolt is arranged on the side wall thread of the sleeve in a penetrating way, and the end part of the locking bolt close to the strut is abutted against the outer side wall of the strut.
Through adopting above-mentioned technical scheme, the sleeve pipe supports fixedly to the pillar, and the locking bolt is fixed to the nested pillar in the sleeve pipe locking, makes the pillar difficult emergence of assembling not hard up, further improves the stability of assembly, has promoted the effect of equipment.
The utility model discloses further set up to: the cross section of the strut is the same as that of the planet carrier body, the upper end face of the sleeve is higher than that of the strut, and the upper end of the sleeve is provided with a notch for exposing part of the strut.
By adopting the technical scheme, the pressing mechanism is started to drive the pressing head and the output shaft to descend, and the output shaft is inserted into the output hole in the center of the end face of the planet carrier body; simultaneously, the pushing head drives the planet carrier body to descend along the inner side wall of the sleeve, the gear pin shaft is inserted into the pin shaft hole formed in the planet carrier body, and meanwhile the planet carrier body is assembled with the gear pin shaft, the planet carrier body and the output shaft. The sheathed tube up end is higher than the up end of pillar, makes the planet carrier body receive the pushing down and when descending, and the planet carrier body has restricted the radial slip of planet carrier body along the vertical lift of sheathed tube inside wall, can insert the planet carrier body with gear pin axle and output shaft steadily. The breach is convenient for operating personnel to take out the pillar from the sleeve pipe, carries out nimble change, convenient and fast.
The utility model discloses further set up to: the upper end face of the strut is coaxially and fixedly connected with a butt joint block, and the height of the upper end face of the butt joint block is lower than that of the upper end face of the sleeve.
Through adopting above-mentioned technical scheme, in the depression bar drove the output shaft and inserts the output hole of planet carrier body downwards, planet carrier body descends along sheathed tube inside wall, and gear pin axle inserts the round pin shaft hole of locating planet carrier body. The butt joint piece is contradicted with planet carrier body's lower terminal surface, makes planet carrier body's lower terminal surface and the up end of pillar have the clearance, and when planet carrier body blocked because of the pushing down force embedding sleeve pipe, the clearance is convenient for operating personnel to take out the planet carrier body that assembles in the sleeve pipe, safe and reliable.
The utility model discloses further set up to: the upper end face fixed mounting of supporting seat has vertical back shaft, the pressure head is installed down and is equipped with the horizontally connecting plate, the vertical slip of terminal surface of connecting plate is worn to locate the back shaft.
Through adopting above-mentioned technical scheme, lower pressure head goes up and down under the drive of pushing down the mechanism, and the connecting plate slides along the back shaft in vertical direction, and the back shaft leads the connecting plate to the offset of pressure head lift in-process at the horizontal direction under the restriction, the pressure head inserts the output shaft planet carrier body more accurately under being convenient for, pushes down the planet carrier body steadily, has guaranteed the assembly effect, and is accurate reliable.
The utility model discloses further set up to: the back shaft sleeve is provided with a spring, and the spring is positioned between the connecting plate and the supporting seat.
Through adopting above-mentioned technical scheme, when the lower pressure head made the connecting plate go up and down along the back shaft under the effect of pushing down the mechanism, the spring carried out the shock attenuation buffering between connecting plate and supporting seat, made the supporting seat be difficult for taking place vibrations because of the motion of lower pressure head, promoted the stability of sleeve pipe and pillar, promoted the assembly effect.
The utility model discloses further set up to: the upper end of back shaft is equipped with the stopper, the connecting plate is located between stopper and the supporting seat.
Through adopting above-mentioned technical scheme, stopper and supporting seat cooperation restrict the motion range of connecting plate to the lift scope of pressure head under the restriction, reliable and stable.
The utility model discloses further set up to: the both sides of supporting seat are equipped with fastening components, fastening components includes fixed block, fastening bolt and fastening briquetting, fixed block fixed mounting in the terminal surface of workstation, the both ends of fastening briquetting respectively with the up end of fixed block the terminal surface of supporting seat is contradicted, the vertical screw thread of fastening bolt is worn to locate the terminal surface of fastening briquetting with the up end of workstation, fastening bolt thread bush is equipped with fastening nut, fastening nut with the up end of fastening briquetting is contradicted.
Through adopting above-mentioned technical scheme, the lower terminal surface of fastening briquetting is contradicted with the up end of supporting seat, under fastening bolt and fastening nut's cooperation, compresses tightly the up end of supporting seat, makes the difficult emergence of supporting seat rock, and the supporting seat of being convenient for carries out the outrigger to sleeve pipe and pillar, guarantees the assembly effect.
To sum up, the beneficial effects of the utility model are that:
1. the technology of a supporting seat, an installation component, a sleeve, a pillar, a pin hole, a pressing mechanism, a pressing head and a jack is adopted, an operator vertically inserts a gear pin shaft into the pin hole on the upper end face of the pillar, places the pin hole of the planet carrier body corresponding to the gear pin shaft, inserts an output shaft into the jack, starts the pressing mechanism to drive the pressing head and the output shaft to descend, and inserts the output shaft into an output hole in the center of the end face of the planet carrier body; meanwhile, the downward pressing head drives the planet carrier body to descend, the gear pin shaft is inserted into the pin shaft hole of the planet carrier body, and meanwhile the assembly of the planet carrier body, the gear pin shaft, the planet carrier body and the output shaft is completed, so that the assembly efficiency is improved, and the labor intensity of workers is reduced;
2. the technology of fixed disk and chassis has been adopted, chassis adapter sleeve, fixed disk joint support seat, and the chassis is connected with the fixed disk, has increased the area of contact of sleeve pipe with the supporting seat, makes the sleeve pipe install on a supporting bench more firmly, and the sleeve pipe supports the pillar fixedly, makes the in-process of pillar and sleeve pipe equipment of pushing down under the pressure head more stable, does benefit to the effect of guaranteeing the assembly. The chassis is connected with the fixed disk through bolts, so that the assembly and disassembly are convenient while the fixity is high;
3. having adopted the technique of back shaft, connecting plate and spring, the pressure head goes up and down under the drive of pushing down the mechanism, and the connecting plate slides along the back shaft on vertical direction, and the back shaft leads the connecting plate to the offset at the horizontal direction of pressure head lift in-process under the restriction, the pressure head inserts the planet carrier with the output shaft more accurately under being convenient for, pushes down the planet carrier steadily, has guaranteed the assembly effect, and is accurate reliable. The spring carries out the shock attenuation buffering between connecting plate and supporting seat, makes the supporting seat be difficult for taking place vibrations because of the motion of pressure head down, has promoted the stability of sleeve pipe and pillar, has promoted the assembly effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram for showing that the output shaft and the gear pin shaft are respectively inserted into the planet carrier body for assembly in the embodiment.
Fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.
Fig. 5 is a schematic structural diagram for showing the completion of the assembly of the planet carrier body, the output shaft and the gear pin shaft in the embodiment.
In the figure, 1, a workbench; 11. a supporting seat; 12. fixing the disc; 13. a support shaft; 131. a limiting block; 14. a spring; 2. a fastening assembly; 21. fastening a bolt; 22. fastening a nut; 23. fastening a pressing block; 24. a fixed block; 3. mounting the component; 31. a chassis; 32. a sleeve; 33. a pillar; 331. a pin hole; 332. a butting block; 34. locking the bolt; 341. a bolt head; 342. a screw; 4. a pressing mechanism; 41. a lower pressure head; 42. a connecting plate; 5. a planet carrier body; 51. an output aperture; 52. a pin shaft hole; 61. an output shaft; 62. and a gear pin shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a planet carrier equipment, including workstation 1, supporting seat 11 is installed to the up end of workstation 1, and the up end fixed mounting of supporting seat 11 has horizontally fixed disk 12, and the top of fixed disk 12 is equipped with installation component 3. The mounting assembly 3 comprises a chassis 31, a sleeve 32 and a support 33 which are coaxially arranged, the chassis 31 is horizontally arranged, the lower end face of the chassis 31 is attached to the upper end face of the fixed disc 12, and the chassis 31 is coaxially and fixedly connected to the upper end face of the fixed disc 12 through bolts. A vertical sleeve 32 is coaxially fixed on the upper end surface of the bottom plate 31, the pillar 33 is coaxially nested in the sleeve 32, a horizontal locking bolt 34 is threaded through the side wall of the sleeve 32, the locking bolt 34 comprises a bolt head 341 and a screw 342 (see fig. 4), and the screw 342 is threaded through the end of the sleeve 32 and abuts against the outer side wall of the pillar 33. The chassis 31 is connected with the sleeve 32, the fixed disk 12 is connected with the supporting seat 11, the chassis 31 is connected with the fixed disk 12, the contact area between the sleeve 32 and the supporting seat 11 is increased, the sleeve 32 is more stably installed on the supporting platform, the sleeve 32 supports and fixes the strut 33, and the locking bolt 34 locks and fixes the strut 33 nested in the sleeve 32. The chassis 31 is connected with the fixed disc 12 through bolts, so that the chassis is high in fixing performance and convenient to disassemble and assemble.
Referring to fig. 1 and 2, the upper end surface of the sleeve 32 is higher than the upper end surface of the pillar 33, and the upper end of the sleeve 32 is provided with a notch for exposing a part of the pillar 33. In this embodiment, two notches are formed in pairs. The cross section of the strut 33 is the same as that of the planet carrier body 5, a vertical pin hole 331 is circumferentially formed in the upper end surface of the strut 33, and the pin holes 331 are distributed to correspond to the pin shaft holes 52 circumferentially formed in the end surface of the planet carrier body 5. An abutment block 332 is coaxially fixed to the upper end surface of the support 33, and the height of the upper end surface of the abutment block 332 is lower than the height of the upper end surface of the sleeve 32. The gap is convenient for operating personnel to take out the pillar 33 from the sleeve 32, so that the flexible replacement is realized, and the operation is simple and convenient.
Referring to fig. 1 and 2, fastening assemblies 2 are disposed at both sides of the support base 11, and the fastening assemblies 2 include a fixing block 24, a fastening bolt 21, a fastening nut 22, and a fastening pressing block 23. Fixing block 24 fixed mounting is in the terminal surface of workstation 1, and the both ends below of fastening briquetting 23 contradicts with the up end of fixing block 24, the terminal surface of supporting seat 11 respectively, and fastening bolt 21 is vertical to be set up, and fastening bolt 21 is worn to locate the terminal surface of fastening briquetting 23 and the up end of workstation 1 by the downward screw thread, and fastening bolt 21 is located to fastening nut 22 thread bush, and fastening nut 22 contradicts with the up end of fastening briquetting 23. Under the cooperation of fixed block 24, fastening bolt 21 and fastening nut 22, fastening briquetting 23 compresses tightly supporting seat 11, makes supporting seat 11 be difficult for taking place to rock, and the supporting seat 11 of being convenient for carries out the stable stay to sleeve pipe 32 and pillar 33, guarantees the assembly effect.
Referring to fig. 3 and 4, a pressing mechanism 4 is further included, and in the present embodiment, the pressing mechanism 4 is a pressure cylinder mechanism. The pressing mechanism 4 is connected with a pressing head 41, and a jack coaxially arranged with the pillar 33 is vertically arranged on the lower end surface of the pressing head 41. An operator vertically inserts the gear pin shaft 62 into the pin hole 331 on the upper end surface of the pillar 33, places the pin shaft hole 52 of the planet carrier body 5 corresponding to the gear pin shaft 62, inserts the output shaft 61 into the insertion hole, starts the pressing mechanism 4 to drive the pressing head 41 and the output shaft 61 to descend, and inserts the output shaft 61 into the output hole 51 in the center of the end surface of the planet carrier body 5; meanwhile, the lower pressure head 41 drives the planet carrier body 5 to descend, the gear pin shaft 62 is inserted into the pin shaft hole 52 of the planet carrier body 5, and meanwhile, the assembly of the planet carrier body 5 and the gear pin shaft 62, the planet carrier body 5 and the output shaft 61 is completed (see fig. 5), so that the assembly efficiency is improved, and the labor intensity of workers is reduced.
Referring to fig. 1 and 2, two vertical support shafts 13 are fixedly mounted on the upper end surface of the support base 11, the lower pressing head 41 is connected with a horizontal connecting plate 42, and the end surface of the connecting plate 42 is slidably inserted through the support shafts 13 in the vertical direction. The upper end of the supporting shaft 13 is coaxially provided with a limiting block 131, and the cross section size of the limiting block 131 is larger than that of the supporting rod. The connecting plate 42 is located between the stopper 131 and the support base 11. The supporting shaft 13 is sleeved with a vertical spring 14, and the spring 14 is positioned between the connecting plate 42 and the supporting seat 11. Lower pressure head 41 goes up and down under the drive of pushing down mechanism 4, and connecting plate 42 slides on vertical direction along back shaft 13, and back shaft 13 leads connecting plate 42 to 41 lift in-process offsets at the horizontal direction under the restriction, pressure head 41 inserts output shaft 61 more accurately down and planet carrier body 5 is pressed down to the planet carrier steadily, has guaranteed the assembly effect, and is accurate reliable. The spring 14 performs damping and buffering between the connecting plate 42 and the supporting seat 11, so that the supporting seat 11 is not easy to vibrate due to the movement of the lower pressing head 41, the stability of the sleeve 32 and the pillar 33 is improved, and the assembling effect is improved.
The implementation principle of the above embodiment is as follows: an operator vertically inserts the gear pin shaft 62 into the pin hole 331 on the upper end surface of the pillar 33, places the pin hole 52 of the planet carrier body 5 corresponding to the gear pin shaft 62, inserts the output shaft 61 into the insertion hole, starts the pressing mechanism 4 to drive the pressing head 41 and the output shaft 61 to descend, slides the connecting plate 42 along the support shaft 13 in the vertical direction, and inserts the output shaft 61 into the output hole 51 in the center of the end surface of the planet carrier body 5; simultaneously, lower pressure head 41 drives planet carrier body 5 and descends along the inside wall of sleeve pipe 32, inserts gear pin 62 and locates in planet carrier body 5's round pin shaft hole 52, and butt joint piece 332 contradicts with planet carrier body 5's lower terminal surface, accomplishes planet carrier body 5 and gear pin 62, planet carrier body 5 and output shaft 61's equipment simultaneously, has improved assembly efficiency, has reduced artifical intensity of labour, has promoted the effect of assembly.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a planet carrier equipment, includes workstation (1) and pushes down mechanism (4), its characterized in that: supporting seat (11) are installed to the up end of workstation (1), the up end of supporting seat (11) is equipped with installation component (3), sleeve pipe (32) and pillar (33) of coaxial vertical setting are included in installation component (3), sleeve pipe (32) install in supporting seat (11), pillar (33) coaxial nested in sleeve pipe (32), pinhole (331) have been seted up to the up end circumference of pillar (33), push down mechanism (4) are connected with lower pressure head (41), the lower terminal surface of lower pressure head (41) is vertical to be seted up the jack with coaxial setting of pillar (33).
2. The planet carrier assembly apparatus according to claim 1, wherein: the upper end face of the supporting seat (11) is provided with a horizontal fixed disk (12), the lower end of the sleeve (32) is coaxially fixed with a chassis (31), and the chassis (31) is coaxially connected above the fixed disk (12) through bolts.
3. The planet carrier assembly apparatus according to claim 1, wherein: and a locking bolt (34) is arranged on the side wall thread of the sleeve (32) in a penetrating mode, and the end part, close to the support column (33), of the locking bolt (34) is abutted to the outer side wall of the support column (33).
4. The planet carrier assembly apparatus according to claim 1, wherein: the cross section of the strut (33) is the same as that of the planet carrier body (5), the upper end face of the sleeve (32) is higher than that of the strut (33), and the upper end of the sleeve (32) is provided with a notch for exposing part of the strut (33).
5. The planet carrier assembly apparatus according to claim 4, wherein: the upper end face of the support column (33) is coaxially and fixedly connected with a butt joint block (332), and the height of the upper end face of the butt joint block (332) is lower than that of the upper end face of the sleeve (32).
6. The planet carrier assembly apparatus according to claim 1, wherein: the upper end face fixed mounting of supporting seat (11) has vertical back shaft (13), horizontal connecting plate (42) are installed to lower pressure head (41), the vertical slip of the terminal surface of connecting plate (42) is worn to locate back shaft (13).
7. The planet carrier assembly apparatus according to claim 6, wherein: the supporting shaft (13) is sleeved with a spring (14), and the spring (14) is located between the connecting plate (42) and the supporting seat (11).
8. The planet carrier assembly apparatus according to claim 6, wherein: the upper end of the supporting shaft (13) is provided with a limiting block (131), and the connecting plate (42) is located between the limiting block (131) and the supporting seat (11).
9. The planet carrier assembly apparatus according to claim 1, wherein: the both sides of supporting seat (11) are equipped with fastening components (2), fastening components (2) include fixed block (24), fastening bolt (21) and fastening briquetting (23), fixed block (24) fixed mounting in the terminal surface of workstation (1), the both ends of fastening briquetting (23) respectively with the up end of fixed block (24) the terminal surface of supporting seat (11) is contradicted, fastening bolt (21) vertical screw thread is worn to locate the terminal surface of fastening briquetting (23) with the up end of workstation (1), fastening bolt (21) thread bush is equipped with fastening nut (22), fastening nut (22) with the up end of fastening briquetting (23) is contradicted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921404606.6U CN210476135U (en) | 2019-08-27 | 2019-08-27 | Planet carrier assembling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921404606.6U CN210476135U (en) | 2019-08-27 | 2019-08-27 | Planet carrier assembling equipment |
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| Publication Number | Publication Date |
|---|---|
| CN210476135U true CN210476135U (en) | 2020-05-08 |
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ID=70537765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921404606.6U Active CN210476135U (en) | 2019-08-27 | 2019-08-27 | Planet carrier assembling equipment |
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| Country | Link |
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| CN (1) | CN210476135U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245811A (en) * | 2021-06-21 | 2021-08-13 | 浙江丰立智能科技股份有限公司 | Planet carrier intelligence pressure round pin equipment |
| CN113414568A (en) * | 2021-07-16 | 2021-09-21 | 重庆齿轮箱有限责任公司 | Multi-type single-arm planet shaft press-fitting platform |
| CN115094386A (en) * | 2022-05-19 | 2022-09-23 | 无锡芯谱半导体科技有限公司 | Driving mechanism for planet carrier of multi-shaft combined electron beam evaporation table |
-
2019
- 2019-08-27 CN CN201921404606.6U patent/CN210476135U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245811A (en) * | 2021-06-21 | 2021-08-13 | 浙江丰立智能科技股份有限公司 | Planet carrier intelligence pressure round pin equipment |
| CN113414568A (en) * | 2021-07-16 | 2021-09-21 | 重庆齿轮箱有限责任公司 | Multi-type single-arm planet shaft press-fitting platform |
| CN113414568B (en) * | 2021-07-16 | 2022-09-30 | 重庆齿轮箱有限责任公司 | Multi-type single-arm planet shaft press-fitting platform |
| CN115094386A (en) * | 2022-05-19 | 2022-09-23 | 无锡芯谱半导体科技有限公司 | Driving mechanism for planet carrier of multi-shaft combined electron beam evaporation table |
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