CN110954332B - Testing device of marine diesel engine - Google Patents
Testing device of marine diesel engine Download PDFInfo
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- CN110954332B CN110954332B CN201911307007.7A CN201911307007A CN110954332B CN 110954332 B CN110954332 B CN 110954332B CN 201911307007 A CN201911307007 A CN 201911307007A CN 110954332 B CN110954332 B CN 110954332B
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- diesel engine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Engines (AREA)
Abstract
A test device of a marine diesel engine is characterized in that the test device comprises a rack structure, wherein the rack structure comprises a base, and a load device and a transverse sizing block are arranged on the base; the transverse sizing block is provided with three fixed supports and one adjusting support, and the three fixed supports and the one adjusting support correspond to four mounting feet of the diesel engine one by one; the adjusting support is sequentially arranged from top to bottom: the nut fixing device comprises a bowl-shaped gasket, a threaded sleeve, a fixing nut, a nut seat, a positioning pin and a fixing plate; the internal thread of the screw sleeve is right-handed, the external thread of the screw sleeve is left-handed, and the thread pitches of the internal thread and the external thread are the same; the left-hand external thread of the screw sleeve is connected with the fixed nut; the fixing nut is fixedly connected to the nut seat; the nut seat is fixedly connected to the fixing plate; the fixing plate is fixedly connected with the transverse sizing block; according to the invention, the adjusting and supporting functions of the adjusting support are utilized, so that four mounting feet can be effectively supported when the diesel engine is mounted, and meanwhile, the left-handed threads and the right-handed threads which are arranged inside and outside the threaded sleeve of the adjusting support can effectively prevent mounting screws from loosening.
Description
Technical Field
The invention relates to a test device of a marine diesel engine, in particular to a test run rack of the marine diesel engine, and belongs to the technical field of diesel engine production processes.
Background
The marine diesel engine needs running-in, debugging and other trial runs before leaving a factory. Therefore, the diesel engine needs to be installed on a test bench which is usually provided with two transverse sizing blocks and a load device on a base provided with a longitudinal T-shaped groove through T-shaped bolts, wherein the transverse sizing blocks are provided with fixed supports, before the diesel engine is tested, the diesel engine and the load device are elastically connected through an elastic coupling, and then the diesel engine installation foot and the fixed supports are fixedly connected through screws. As is well known, a diesel engine has four independent rigid mounting legs rigidly connected to the diesel engine, theoretically, in the height direction, the height from the bottom plane of each mounting leg to the crankshaft center line of the diesel engine is generally the same, that is, the bottom planes of the four mounting legs are theoretically on the same plane, actually, due to manufacturing errors, positioning errors, assembly errors and the like, the bottom planes of the four mounting legs are not a plane but have slight errors, although the connection precision of the diesel engine and a load device is not affected, the diesel engine usually has only three mounting legs supported on a fixed support, and the other leg is suspended, so that the gravity center of the diesel engine is unstable, during the diesel engine test, vibration and noise are generated, the mounting legs are broken seriously, and in order to ensure that the four mounting legs of the diesel engine can be effectively supported at the same time, a gasket is usually added under the suspended mounting legs, because the suspension heights of the mounting feet of each diesel engine are different and the thickness specification of the gasket is limited, the method is difficult to completely eliminate the gap between the mounting feet and the fixed support, and therefore vibration and noise of the diesel engine caused by mounting reasons cannot be completely overcome.
Disclosure of Invention
The invention aims to overcome the defects that all mounting feet of the existing diesel engine are fixedly connected to a fixed support of a test bench through bolts.
In order to achieve the above purpose, the present invention is realized by the following technical scheme.
The testing device of the marine diesel engine is characterized by comprising a rack structure, wherein the rack structure comprises a base with a T-shaped groove, and the base is fixedly connected with a load device and a transverse sizing block by utilizing a T-shaped groove bolt; the method is characterized in that: the diesel engine is characterized in that the number of the transverse sizing blocks is two, the upper plane of the length direction of each transverse sizing block is provided with a T-shaped groove, three fixed supports and one adjusting support are respectively fixed on the two transverse sizing blocks, and the positions of the three fixed supports and the position of the adjusting support correspond to the four mounting feet of the diesel engine one by one; the fixed support is in a square box shape and is transparent in the front and the back; the lower bottom is provided with a T-shaped groove screw mounting hole and a pin hole; the upper bottom is provided with a connecting hole of a diesel engine mounting pin, and the connecting hole is concentric with the pin hole; the adjusting support is sequentially arranged from top to bottom: the nut fixing device comprises a bowl-shaped gasket, a threaded sleeve, a fixing nut, a nut seat, a positioning pin and a fixing plate; the bowl-shaped gasket covers the top of the threaded sleeve; the threaded sleeve is tubular, right-handed internal threads are arranged on the inner wall of the tube, the outer wall of the tube is divided into two sections, the lower section of the tube is circular and is provided with left-handed external threads, and the upper section of the tube is hexagonal; the thread pitches of the right-handed internal thread and the left-handed external thread are the same; the fixing nut is a left-hand internal thread and forms a thread pair with the left-hand external thread of the thread sleeve; the fixing nut is fixedly connected to the nut seat; the nut seat is fixedly connected to the fixing plate; the fixing plate is fixedly connected with the transverse sizing block.
The object of the invention is further achieved by the following technical solutions.
On the base, the loading device is arranged on the left side of the base, the transverse sizing block is arranged on the right side of the base, and the T-shaped groove on the transverse sizing block is perpendicular to the T-shaped groove of the base
The upper plane of the transverse sizing block in the length direction is provided with a T-shaped groove.
The hexagonal external circle diameter of the upper section of the outer wall of the screw sleeve is smaller than the small diameter of the lower section of the thread.
The fixing nut is in a vertical tube shape, the bottom of the fixing nut is provided with a flange, a positioning shaft neck is further arranged on the lower plane of the flange, a left-handed internal thread is arranged on the inner wall of the tube, the pitch of the left-handed internal thread is equal to that of an external thread on the threaded sleeve, and at least two round holes are formed in the flange.
The nut seat is square and transparent in front and back, an upper positioning hole and a lower positioning hole are respectively arranged in the centers of the upper bottom and the lower bottom, the upper positioning hole and the lower positioning hole are concentric, threaded holes corresponding to the round holes in the flange of the fixing nut are formed in the peripheries of the upper positioning hole and in the upper bottom, round holes are respectively arranged in the front and the back of the positioning hole in the lower bottom, the upper positioning hole is matched with a positioning shaft neck on the fixing nut, and the lower positioning hole is matched with a positioning pin.
The fixing plate is rectangular, a pin hole is formed in the center of the central line of the rectangle, the size of the pin hole is smaller than that of the lower positioning hole of the nut seat, threaded holes corresponding to the round hole in the lower bottom of the nut seat are formed in the front central line and the rear central line of the pin hole respectively, and a mounting hole is formed in each of the front central line and the rear central line of the fixing plate.
In the locating pin, the upper journal and the lower journal are single-step round pins, the lower journal is in interference fit with the pin hole, and the upper journal is in transition fit with the lower locating hole.
The invention has the advantages and beneficial effects that: the diesel engine is arranged on the test bench by utilizing the three fixed supports and the one adjusting support, so that the phenomenon of over-positioning caused by the fact that four mounting feet of the diesel engine are respectively supported on the four fixed supports is overcome, and the one mounting foot is suspended; because in the four feet of the diesel engine, three feet are supported on three equal-height fixed supports on the same plane, which is a axiom, in order to solve the problem that the fourth foot is suspended, the invention arranges an adjusting support under the fourth foot, and eliminates the gap between the upper plane of the bowl-shaped gasket and the lower plane of the mounting foot of the diesel engine by utilizing the adjusting function of the threaded connection between the upper threaded sleeve of the adjusting support and the fixed nut to adjust the upper and lower heights of the threaded sleeve, thereby reliably supporting the four mounting feet of the diesel engine; in order to solve the problem that the mounting screw is loosened due to test run vibration of the diesel engine, the adjusting support is provided with two groups of thread pairs with different rotation directions, namely a right-handed thread pair is adopted between the mounting screw and the threaded sleeve, a left-handed thread pair is adopted between the threaded sleeve and the fixed nut, and the thread pitches are equal, so that when the diesel engine is in test run, if the mounting screw is in an anticlockwise loosening trend, the threaded sleeve simultaneously follows, an anticlockwise tightening trend is generated, and vice versa, and the mounting screw is ensured not to be loosened, so that the structure has a reliable screw loosening function.
In addition, in order to adapt to other machine types, the bottom of the fixing support is provided with a positioning hole in advance, so that the height of the fixing support can be conveniently lifted.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a rack structure
FIG. 2 is a top view of a stage structure
FIG. 3 shows a 16-bar mount
FIG. 4 shows a 19-degree adjustment support
Figure 5 shows a 195 nut seat
194 securing nut in FIG. 6
FIG. 7 shows a 193 screw sleeve
In the figure: 11. a load device 13, a base 13a, a longitudinal T-shaped groove 14, an elastic coupling 15, a transverse sizing block A, a T-shaped groove 15a, a T-shaped groove I16, a fixed support 17, a transverse sizing block B, a T-shaped groove II, 18, a diesel engine 181, a mounting foot A, a mounting foot 182, a mounting foot B, a mounting foot 183, a mounting foot C, a mounting foot 184, a mounting foot D, a mounting foot 19 and an adjusting support,
191. the mounting bolt, 192, the bowl-shaped gasket, 193, the thread insert, 194, the fixing nut, 194a, the positioning journal, 195, the nut seat, 195a, the upper positioning hole, 195b, the lower positioning hole, 196, the positioning pin, 197, the fixing plate, 197a and the pin hole.
Detailed Description
In order to make the objects and technical solutions of the present invention more clear, the present invention is further described below with reference to the accompanying drawings and examples:
it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The terms "left, right, up, down, front and back" used in the present invention mean that when the reader faces the drawings, the left side of the reader is left, the right side of the reader is right, the upper side of the reader is up, the lower side of the reader is down, the surface in the front paper of the reader is front, and the surface facing the reader is back, and not specifically limited to the present invention.
The term "connected" as used herein may mean either a direct connection between the components or an indirect connection between the components via other components.
As shown in fig. 1 and 2, the bench structure of the testing device of the marine diesel engine comprises a base 13, wherein the upper plane of the base 13 is provided with a plurality of longitudinal T-shaped grooves 13a for fixedly connecting a load device 11 and a transverse sizing block by using T-shaped groove bolts, the load device 11 is arranged at the left end of the base 13, the right side surface of the load device 11 is provided with an input shaft, the right end of the input shaft is provided with an elastic coupling 14, and the other end of the elastic coupling 14 is connected with the left end of an output shaft of a diesel engine 18; the right side of base 13 is equipped with parallel placement, and the terminal surface is "worker" font, and two horizontal parallels that the shape is the same are: the transverse sizing block A15 and the transverse sizing block B17 are arranged, a T-shaped groove I15 a and a T-shaped groove II 17a are respectively arranged in the length direction of the upper plane of the transverse sizing block A15 and the transverse sizing block B17, and the T-shaped groove I15 a and the T-shaped groove II 17a are perpendicular to the T-shaped groove 13 a. The transverse sizing block A15 is fixedly connected with two fixed supports 16 through T-shaped grooves I15 a and bolts, the positions of the two fixed supports correspond to those of the mounting feet 181 and 184 of the diesel engine A, the transverse sizing block B17 is fixedly connected with one fixed support 16 and one adjusting support 19 through T-shaped grooves II 17a and bolts, and the positions of the two fixed supports correspond to those of the mounting feet 183 and 182 of the diesel engine C.
As shown in fig. 3, the fixing support 16 is square and through in the front and back; a T-shaped groove bolt mounting hole 16b, a pin hole 16c and a T-shaped groove bolt mounting hole (shielded) are sequentially arranged on the front and rear symmetrical shafts of the lower bottom 16 f; the upper bottom 16e is provided with a diesel engine mounting pin connecting hole 16a, and the connecting hole 16a is concentric with the pin hole 16 c; the connecting hole 16a is a fixing hole for connecting with a diesel engine mounting pin; the pin holes 16c are arranged for the purpose of adapting to other diesel engines, so that the height of the fixed support 16 needs to be increased, the intersection of the axis of the connecting hole and the longitudinal symmetrical line of the T-shaped groove is ensured, and convenience is provided for the installation of the diesel engine.
As shown in fig. 4, a fixing plate 197 is provided at the bottom of the adjusting support 19, the fixing plate 197 has a rectangular shape, fixing holes are provided at both ends of the center line of the rectangular shape, the fixing plate 197 is fixedly connected to the B-side pad 17 through a T-shaped groove 17a and a T-shaped groove bolt on the B-side pad 17 by the fixing holes, a pin hole 197a is provided at the center of the center line of the fixing plate 197, and two screw holes are provided on the same axis as the fixing holes on the left and right of the pin hole 197 a. On the upper plane of the fixing plate 197, a positioning pin 196, a nut seat 195, a fixing nut 194, a threaded sleeve 193, a bowl-shaped spacer 192, a B mounting leg 182, and a mounting screw 191 are provided in this order from the bottom up.
A nut seat 195 is provided on the upper plane of the fixing plate 197, as shown in fig. 5, the nut seat 195 is square and is through in the front and rear direction, an upper positioning hole 195a and a lower positioning hole 195b are provided at the center of the upper and lower bottoms respectively, the upper positioning hole 195a is concentric with the lower positioning hole 195b, four screw holes 195c are provided on the outer circumference of the upper positioning hole 195a, the diameter of the lower positioning hole 195b is larger than that of the pin hole 197a, and a circular hole 195d is provided in the front and rear of the lower positioning hole 195b respectively corresponding to the two screw holes on the fixing plate 197.
The positioning pin 196 is in a single-step upright column shape, the upper part is thick, the lower part is thin, the positioning pin 196 is in interference fit with a pin hole 197a of the fixing plate 197, the positioning pin 196 is in transition fit with a lower positioning hole 195b, and the nut seat 195 is fixedly connected to the fixing plate 197 through a screw;
as shown in fig. 6, the fixing nut 194 is tubular, a flange 194a is provided at the bottom of the tube, four circular holes are provided on the flange 194a, the four circular holes are located corresponding to four threaded holes 195c on the upper bottom of the nut seat 195, a positioning shaft ring 194c is provided under the flange 194a, the positioning shaft ring 194c is in transition fit with an upper positioning hole 195a on the upper bottom of the nut seat 195, so as to satisfy positioning accuracy and facilitate disassembly, a threaded hole on the inner wall of the tube of the fixing nut 194 is a left-handed internal thread 194d,
as shown in fig. 7, the threaded sleeve 193 is tubular, the inner wall of the tube is circular and is provided with right-handed internal threads 193a, the outer wall of the tube is divided into an upper section and a lower section, the lower section is circular and is provided with left-handed external threads 193c, the upper section is hexagonal 193b, and the diameter of the circumscribed circle of the hexagonal 193b is smaller than the small diameter of the lower section left-handed external threads 193 c; the thread pitches of the right-handed internal thread 193a and the left-handed external thread 193c are the same, and the thread pitch is also the same as that of the left-handed internal thread 194d on the inner wall of the fixing nut 194; the left-hand external thread 193c of the screw sleeve 193 is connected with the screw hole of the fixing nut 194 as a left-hand internal thread 194 d.
In this embodiment, when the diesel engine is fixed on the stand, first, the threaded sleeve 193 of the adjusting support 19 is sunk to make the upper plane of the bowl-shaped gasket 192 lower than the height of the fixed support 16; secondly, the mounting feet 181, 183 and 184 are fixedly connected to the corresponding fixed supports 16 by bolts; thirdly, the screw sleeve 193 is rotated to be lifted, so that the bowl-shaped gasket 192 is pressed against the bottom plane of the mounting foot 182B, the pressing force is about ten kilograms, and the adjusting support 19 is tightly contacted with the mounting foot 182B of the diesel engine; fourth, the B mounting leg 182 is secured to the adjustment bracket 19 with the mounting screw 191 while maintaining the position of the threaded sleeve 193.
When the adjusting support 19 is used, the contact area of the upper plane of the threaded sleeve 193 is adjusted, so that when the mounting screw 191 rotates, the threaded sleeve 193 can overcome the friction torque of the thread pair of the thread 194a of the fixing nut 194 without other external torque, and then follow the mounting screw 191 to rotate, and vice versa. Because the inner and outer threads of the threaded sleeve 193 are respectively the right-handed thread and the left-handed thread, when the adjusting support 19 is used, the adjusting support is vibrated by a diesel engine, when the threaded sleeve 193 rotates clockwise, the mounting screw 191 must also rotate clockwise along with the threaded sleeve, the mounting screw 191 releases the threaded sleeve, the mounting screw simultaneously releases the threaded sleeve, the threaded sleeve and the mounting screw are equal in size and opposite in direction, and therefore the risk of releasing the threaded sleeve 193 is eliminated, and vice versa. When the adjusting support 19 works, the fixing screw connected with the adjusting support is not loosened, and the safe operation of the equipment is ensured.
Claims (8)
1. The testing device of the marine diesel engine is characterized by comprising a rack structure, wherein the rack structure comprises a base with a T-shaped groove, and the base is fixedly connected with a load device and a transverse sizing block by utilizing a T-shaped groove bolt; the method is characterized in that: the diesel engine is characterized in that the number of the transverse sizing blocks is two, the upper plane of the length direction of each transverse sizing block is provided with a T-shaped groove, three fixed supports and one adjusting support are respectively fixed on the two transverse sizing blocks, and the positions of the three fixed supports and the position of the adjusting support correspond to the four mounting feet of the diesel engine one by one; the fixed support is in a square box shape and is transparent in the front and the back; the lower bottom is provided with a T-shaped groove screw mounting hole and a pin hole; the upper bottom is provided with a connecting hole of a diesel engine mounting pin, and the connecting hole is concentric with the pin hole; the adjusting support is sequentially arranged from top to bottom: the nut fixing device comprises a bowl-shaped gasket, a threaded sleeve, a fixing nut, a nut seat, a positioning pin and a fixing plate; the bowl-shaped gasket covers the top of the threaded sleeve; the threaded sleeve is tubular, right-handed internal threads are arranged on the inner wall of the tube, the outer wall of the tube is divided into two sections, the lower section of the tube is circular and is provided with left-handed external threads, and the upper section of the tube is hexagonal; the thread pitches of the right-handed internal thread and the left-handed external thread are the same; the fixing nut is a left-hand internal thread and forms a thread pair with the left-hand external thread of the thread sleeve; the fixing nut is fixedly connected to the nut seat; the nut seat is fixedly connected to the fixing plate; the fixing plate is fixedly connected with the transverse sizing block.
2. The marine diesel engine test apparatus according to claim 1, wherein: on the base, a loading device is arranged on the left side of the base, a transverse sizing block is arranged on the right side of the base, and a T-shaped groove in the transverse sizing block is perpendicular to the T-shaped groove in the base.
3. The marine diesel engine test apparatus according to claim 1, wherein: the upper plane of the transverse sizing block in the length direction is provided with a T-shaped groove.
4. The marine diesel engine test apparatus according to claim 1, wherein: the diameter of a hexagonal circumscribed circle on the upper section of the outer wall of the screw sleeve is smaller than the small diameter of the thread on the lower section.
5. The marine diesel engine test apparatus according to claim 1, wherein: the fixing nut is in a vertical tube shape, a flange is arranged at the bottom of the fixing nut, a positioning shaft neck is further arranged on the lower plane of the flange, a left-handed internal thread is arranged on the inner wall of the tube, the pitch of the left-handed internal thread is equal to that of an external thread on the threaded sleeve, and at least two round holes are formed in the flange.
6. The marine diesel engine test apparatus according to claim 1, wherein: the nut seat is square and transparent in front and back, an upper positioning hole and a lower positioning hole are respectively arranged in the centers of the upper bottom and the lower bottom, the upper positioning hole and the lower positioning hole are concentric, threaded holes corresponding to the round holes in the flange of the fixing nut are formed in the periphery of the upper positioning hole in the upper bottom, round holes are respectively arranged in the front and the back of the positioning hole in the lower bottom, the upper positioning hole is matched with a positioning shaft neck on the fixing nut, and the lower positioning hole is matched with a positioning pin.
7. The marine diesel engine test apparatus according to claim 1, wherein: the fixing plate is rectangular, a pin hole is formed in the center of the central line of the rectangle, the size of the pin hole is smaller than that of a lower positioning hole of the nut seat, threaded holes corresponding to a round hole in the lower bottom of the nut seat are formed in the front central line and the rear central line of the pin hole respectively, and a mounting hole is formed in each of the front central line and the rear central line of the fixing plate.
8. The marine diesel engine test apparatus according to claim 6, wherein: the locating pin, upper and lower axle journal are single step shape round pin, lower axle journal with pinhole interference fit, upper axle journal with down locating hole transition fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307007.7A CN110954332B (en) | 2019-12-18 | 2019-12-18 | Testing device of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307007.7A CN110954332B (en) | 2019-12-18 | 2019-12-18 | Testing device of marine diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110954332A CN110954332A (en) | 2020-04-03 |
| CN110954332B true CN110954332B (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911307007.7A Active CN110954332B (en) | 2019-12-18 | 2019-12-18 | Testing device of marine diesel engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2721846A1 (en) * | 1977-05-13 | 1978-11-16 | Bungart Kg Fabrik Elektrischer | Electrical machine and accessory testing frame - has T-grooves for bolts on base frame top and guide rail for machine in base frame groove |
| CN1867479A (en) * | 2003-09-17 | 2006-11-22 | 岩田螺丝株式会社 | Bolt-nut mechanism |
| CN101251223A (en) * | 2008-04-16 | 2008-08-27 | 沪东重机有限公司 | Apparatus and method for adjusting horizon of low speed diesel engine frame |
| KR20110052906A (en) * | 2009-11-13 | 2011-05-19 | 두산중공업 주식회사 | Fixing apparatus for performance test of gas turbine engine |
| CN102829287A (en) * | 2011-11-30 | 2012-12-19 | 凯迈(洛阳)机电有限公司 | Supporting and levelling device and test stand using same |
| CN203656496U (en) * | 2013-10-09 | 2014-06-18 | 上海艾铭思汽车控制系统有限公司 | Motor rack fixing device |
-
2019
- 2019-12-18 CN CN201911307007.7A patent/CN110954332B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2721846A1 (en) * | 1977-05-13 | 1978-11-16 | Bungart Kg Fabrik Elektrischer | Electrical machine and accessory testing frame - has T-grooves for bolts on base frame top and guide rail for machine in base frame groove |
| CN1867479A (en) * | 2003-09-17 | 2006-11-22 | 岩田螺丝株式会社 | Bolt-nut mechanism |
| CN101251223A (en) * | 2008-04-16 | 2008-08-27 | 沪东重机有限公司 | Apparatus and method for adjusting horizon of low speed diesel engine frame |
| KR20110052906A (en) * | 2009-11-13 | 2011-05-19 | 두산중공업 주식회사 | Fixing apparatus for performance test of gas turbine engine |
| CN102829287A (en) * | 2011-11-30 | 2012-12-19 | 凯迈(洛阳)机电有限公司 | Supporting and levelling device and test stand using same |
| CN203656496U (en) * | 2013-10-09 | 2014-06-18 | 上海艾铭思汽车控制系统有限公司 | Motor rack fixing device |
Non-Patent Citations (1)
| Title |
|---|
| 新型防松螺纹技术原理分析;马同 等;《煤矿机械》;20110930(第09期);第185-186页 * |
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| CN110954332A (en) | 2020-04-03 |
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