CN110000722B - Plug-in board type external characteristic test stand for motorcycle engine - Google Patents
Plug-in board type external characteristic test stand for motorcycle engine Download PDFInfo
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- CN110000722B CN110000722B CN201811629358.5A CN201811629358A CN110000722B CN 110000722 B CN110000722 B CN 110000722B CN 201811629358 A CN201811629358 A CN 201811629358A CN 110000722 B CN110000722 B CN 110000722B
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 210000000078 claw Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The application belongs to the technical field of motorcycle engine external characteristic tests, and relates to a motorcycle engine inserting plate type external characteristic test frame which comprises a bottom plate, a fixed frame, an engine mounting plate, a ventilation reinforcing rib plate, a crankshaft coupler, a reinforcing gasket, a hollow positioning pin, a pressing block with a mortice on the bottom surface, a flat key material pressing plate, an equal-height cushion block, an external reinforcing rib plate, an internal reinforcing rib plate, a pressing block with a mortice on the side surface, an internal thread handle sleeve and a fastener.
Description
Technical Field
The application belongs to the technical field of motorcycle engine external characteristic tests, and particularly relates to a plug board type external characteristic test stand for a motorcycle engine.
Background
The engine of the small-displacement motorcycle is a main component of the motorcycle, the quality of the motorcycle is determined by the performance of the engine, and the engine is required to be subjected to external characteristic tests in each development stage of the engine, such as effective rotation speed, torque, power, fuel consumption rate, engine oil temperature and the like, the tests in the development stage comprise: (1) after the prototype is formed, a detailed and accurate external characteristic test is required to be performed on a prototype to verify whether the performance and the reliability of the whole machine meet the design requirements, and meanwhile, the reliability of each part is checked, and the engine is improved through the process, and the improvement of the engine is completed through a fault removal process in the test; (2) no matter how mature the engine is, the engine is adapted to the matched requirements of the motorcycle through continuous improvement; (3) performing technical examination on mature engine products to improve each detail so as to make the engine products more perfect; (4) the key parts and the important parts of the engine determine the performance of the engine, and the key parts and the important parts are checked and the same as the whole machine is checked; (5) the related test is carried out on the parts to be checked of the detection unit, and then the parts are disassembled, inspected and analyzed, so that the method is an important means for improving the quality of the parts.
The engine development stage requires so many external property tests, and each stage of test requires that a test stand corresponding to the engine to be tested is manufactured first so that the engine is fixed on the test stand and then the external property test is performed. The traditional welding type right-angle frame installing machine is heavy, multiple persons are required to carry, and when the wheels are tested at night, the persons at present are less to lift. Only a person can find in advance to lift the test stand onto the dynamometer, then the engine is installed to perform external characteristic test, and when the engine with different types is replaced, the test stand which is suitable for the engine can be replaced, or a plurality of dynamometers can be purchased to meet the test requirement.
Later, in order to reduce the frequency of carrying the test rack frequently, a plurality of holes and avoiding grooves are processed on the test rack so as to adapt to a plurality of engine varieties. When the variety of the tested engine increases, the hole grooves are broken and communicated, so that the assembly of the through bolt is not affected, the large gasket can be used for making up, but the positioning pin hole is required to be complete, otherwise, the positioning precision is affected. After the variety of the test is further increased, the positioning pin holes are free from positions to be drilled, and the test frame must be replaced in order to continue the test. In addition, because the right angle frame can only be fixed at one side, the vibration is great, and the test quality is influenced.
Disclosure of Invention
The application aims to provide a motorcycle engine insert plate type external characteristic test frame (test frame for short, the other documents are the same below) which is convenient to assemble and disassemble, can remarkably reduce labor intensity, reduce auxiliary installation time, improve working efficiency, reduce vibration and have good safety performance and can be disassembled respectively, and when the pin holes of an engine mounting plate in the test frame are not enough to be used, the test range can be expanded in batches again only by replacing the engine mounting plate.
The purpose of the application is realized in the following way:
the test frame comprises a bottom plate, a fixed frame, an engine mounting plate, a ventilation reinforcing rib plate, a crankshaft coupling, a reinforcing gasket, a hollow positioning pin, a pressing block with a mortice on the bottom surface, a flat key material pressing plate, an equal-height cushion block, an external reinforcing rib plate, an internal reinforcing rib plate, a pressing block with a mortice on the side surface, and an internal threaded handle sleeve and a fastening piece.
The test frame is of a combined structure, replaces a heavy welded right-angle frame structure, and has the advantages that the test frame is convenient to manufacture, can be completed by a common small metal cutting machine tool, is multifunctional, reduces the requirements on the number of dynamometers, reduces the occupied area, lightens the labor intensity, shortens the equipment preparation working hours in the early stage of test work, and improves the detection quality. The application uses the most ready-made materials and the simplest processing method, solves the technical problems which are long desired to be solved but have not broken through all the time, is convenient for checking arrangement and quota management, and has outstanding substantive characteristics and remarkable progress.
The application also has the following distinguishing technical characteristics:
besides the controlled thickness, the bottom plate of the test frame is provided with a reverse counter bore, and the fixing frame, the ventilation reinforcing rib plate, the inner reinforcing rib plate and the outer reinforcing rib plate are tensioned through inner hexagonal cylindrical head screws.
The fixing frame of the test frame is provided with three groups of screw holes except for controlling the width of the three grooves, the first group of screw holes are arranged on the lower surface and used for being connected with the bottom plate by using the hexagon socket head cap screw, the second group of screw holes are arranged on the upper surface and used for being used as a bottom surface pressing block with the mortise and a side surface pressing block with the mortise to press the engine mounting plate into an assembly of the fixing frame and the bottom plate by using the hexagon socket head cap screw, and the third group of screw holes are arranged on the inner side and the outer side of the fixing frame and used for assisting in propping the engine mounting plate by using the hexagon flat end set screw.
The engine mounting plate of the test frame is mainly used for controlling the thickness, so that the engine mounting plate can be smoothly inserted into the fixing frame, corresponding parts contacted with related engines are provided with avoidance pits of various engine protruding parts, three kinds of holes are also provided, the first kind is a positioning pin hole with high position degree requirement, the second kind is a bolt through hole, and the third kind is a screw hole connected with a handle sleeve.
The ventilating reinforcing ribs of the test frame are provided with screw holes in two different directions in the inner reinforcing rib and the outer reinforcing rib, one of the screw holes is fixed on the bottom plate through the inner hexagonal cylindrical head screw, and the other screw hole is connected with the engine mounting plate through the inner hexagonal cylindrical head screw, so that the engine mounting plate is reinforced.
The crankshaft coupler of the test stand has small end connected to the crankshaft of the tested engine via the spline sleeve inside the coupler and large end connected to the buffer box of the dynamometer via the claw of the coupler, and the claw of the coupler is semi-closed to prolong the service life of the coupler obviously.
The bottom surface of the test frame is provided with a mortise pressing block which is pressed in parallel with the middle window of the engine mounting plate in a micro interference fit mode so as to reduce vibration of the engine mounting plate in the test process.
The side of test frame takes the tongue-and-groove briquetting to little interference fit's mode, the left and right sides of clamping the engine mounting panel plays the effect of strengthening the engine mounting panel.
The test frame is fixed on a workbench of the dynamometer through a T-shaped groove, a flat key material pressing plate and a hexagonal nut.
Drawings
Fig. 1 is an isometric view of the application in conjunction with a dynamometer device.
FIG. 2 is an isometric view of a test stand with a dynamometer component and a surge tank component hidden.
Fig. 3 is an isometric view of a test stand component without an engine mounted thereto.
Fig. 4 is a left side view of the axial side view of fig. 3, with parts not visible or obscured in fig. 3 shown in fig. 4.
Fig. 5 is a bottom plate isometric view.
Fig. 6 is a side view of a fixed frame.
Fig. 7 is an axial side view of the engine mounting plate.
Fig. 8 is an isometric view of a vent stiffener.
Fig. 9 is a side view of a crankshaft coupling.
Fig. 10 is a side view of a reinforcement washer.
Fig. 11 is a side view of a hollow dowel.
FIG. 12 is a side view of a tongue and groove compact.
Fig. 13 is a side view of a flat key press platen.
Fig. 14 is an isometric view of an external reinforcing web.
Fig. 15 is an isometric view of an inner stiffener.
FIG. 16 is a side view of a side mortised compact.
Fig. 17 is a side view of an internally threaded handle sleeve.
FIG. 18 is another engine mounting plate isometric view.
Detailed Description
The application is further described in the following by way of specific embodiments with reference to the accompanying drawings.
The test stand is shown in figure 1 together with an isometric view of the dynamometer device.
In FIG. 1, dynamometer component 100 is a commercially available dynamometer, and is of prior art, and only the general shape and exact mounting dimensions are depicted in FIG. 1; the buffer box part 200 has the dual functions of buffer and speed change and can be designed and manufactured according to the center height, the transmission ratio and the load; the test stand member 300 is the main object of the present application, and the motorcycle engine member 400 is a generic term including all kinds of engines waiting for the external characteristic test. The test stand can test 10 motorcycle engines without moving forward and backward and only slightly moving left and right or without moving on the premise of not replacing the engine mounting plate, and the variety of the tested engine can be multiplied after the engine mounting plate is replaced.
The test stand together with the dynamometer device described above conceals the appearance of the dynamometer component 100 and the buffer box component 200, see fig. 2. The purpose of hiding the dynamometer component 100 and the buffer box component 200 is to enlarge the appearance of various parts in the test stand 300 component and display the parts more clearly.
The test stand component 300 without the engine, see fig. 3, comprises a bottom plate 301, a fixed frame 302, an engine mounting plate 303, a ventilation reinforcing rib plate 304, a crankshaft coupler 305, a reinforcing washer 306, a hexagonal flange face fine tooth nut 307, a hollow positioning pin 308, an inner hexagonal cylindrical head screw 309, a bottom face grooved press block 310, an inner hexagonal cylindrical head screw 311, a large washer 312, a hexagonal flange face screw 313, a flat key material press plate 314, a hexagonal nut 315, a T-shaped groove screw 316, an equal-height press block 317, an outer reinforcing rib plate 318, an inner hexagonal cylindrical head screw 319, an inner reinforcing rib plate 320, an inner hexagonal flat end set screw 321, a hexagonal nut 322, a side face grooved press block 323, a screw 324, a hexagonal nut 325 and an inner threaded handle sleeve 326.
The parts not visible or clearly visible in the test stand 300 are shown in fig. 4, wherein fig. 4 is an axial side view, fig. 3 is a left side view, and the parts with the same numbers 301, 302, 303, 312, 313, 306, 307, 305, 320 in fig. 4 are identical to the parts with the same numbers in fig. 3.
The bottom plate 301, see fig. 5, is provided with a countersink on the bottom surface, the diameter of the countersink is 2mm larger than the head of the hexagon socket head cap screw, the depth of the countersink is 1mm deeper than the height of the head of the hexagon socket head cap screw, the fixing frame 302, the ventilation reinforcing rib plate 304, the outer reinforcing rib plate 318 and the inner reinforcing rib plate 320 are tensioned by the hexagon socket head cap screw during assembly, the head is prevented from being exposed to the right, and the assembly machine is influenced.
The above-mentioned fixed frame 302, see fig. 6, the three long slots of the fixed frame 302 have the same width, the same length and the same height, the width dimension of the slots and the thickness dimension of the engine mounting plate 303 are the same, the tolerance requirement is made into micro clearance fit, the inner walls of the three long slots and the bottom plane have higher perpendicularity requirement, the wire cutting processing can meet the requirement, the screw holes on the bottom surface are used for connecting the bottom plate 301, the screw holes on the top surface are used for tightening the screw holes of the bottom-surface grooved press block 310 and the side-surface grooved press block 323, the screw holes on the front and rear surfaces are used as the top screw holes of the inner hexagonal flat end fastening screw 321, the material of the fixed frame is a large flat key material, the three slots are not communicated and can avoid the large flat key material from deforming after the wire cutting, and the insertion of the engine mounting plate 303 is affected, the upper left drawing is the bottom drawing of the fixed frame, the lower left drawing is a cross-sectional view of the fixed frame, the upper right drawing is the axial side drawing of the fixed frame, the lower right drawing is the upper right drawing of the fixed frame is a special view capable of showing the screw holes of screwing into the inner side of the inner hexagonal flat end fastening screw 321.
The thickness of the engine mounting plate 303 is shown in fig. 7, the thickness of the engine mounting plate 303 is in micro-clearance fit with the width of the long groove of the fixing frame 302, the upper left image is a front view of the engine mounting plate, the right image is a left view of the engine mounting plate, the lower image is an axial side image of the engine mounting plate, 2 larger windows in right angles are formed in the upper part of the engine mounting plate and are used for avoiding the crankshaft coupling 305, the lower 2 windows are used for avoiding the bottom surface with the tongue-and-groove pressing block 310, the lower 2 concave notches are used for avoiding the line-cutting deformation rib on the bottom plate 301, the through holes in the right non-through hole pit and pit groove are used for avoiding the protruding parts of the engine, the lower 2 convex concave tenons are used for placing the side surface with the tongue-and-groove pressing block 323 and the inner hexagonal cylindrical head screw rod for tightening, screw holes are formed in the upper 2 convex straight tenons and are used for assembling the inner threaded handle sleeve 326, 8 regularly distributed larger holes, the middle 4 holes are used for penetrating through the inner hexagonal cylindrical head screw 309, the left side and right side non-through hole pits and the right side non-through hole pit grooves are used for avoiding the straight bolt holes of the hollow flange bar stud holes of the engine, and the left side non-through hole seat bolts of the left side and the left side of the hollow bolt hole are used for avoiding the hole of the hollow flange, and the left hole of the hollow bolt hole is used for the hole of the engine flange is used for the hole for fixing the bolt hole. The engine mounting plate 303, the position of the center of each hole, and the distance from each hole to the bottom surface of the engine mounting plate have high requirements, and the corresponding requirements can be met by numerical control machining.
The ventilation reinforcing plate 304, see fig. 8, has a dual function of ventilation and reinforcement, and is formed with two sets of screw holes in different directions so as to connect the engine mounting plate 303 and the bottom plate 301 with hexagon socket head cap screws.
The small end of the crankshaft coupling 305 is made into an internal spline, and is connected to a crankshaft of an engine 400 mounted on an engine mounting plate 303, a hexagonal flange fine tooth nut 307 and a reinforcing washer 306 are fixed at the crankshaft end of the engine 400, the large end of the crankshaft coupling 305 is made into a semi-closed clutch, the coaxiality requirements of the large end and the small end are high, a mandrel blank clamped on a lathe chuck can be machined through a mandrel, when the mandrel is manufactured and positioned, a step is needed to prevent the mandrel blank from axially moving under the action of cutting force to reduce the precision, the internal thread on the inner side of the large end of the crankshaft coupling of a semi-finished product is used as a reference with a high-precision positioning hole and a hole bottom end surface on the inner side of the internal thread, and after positioning and clamping, the mandrel blank is used as an excircle, an inner circle, a front end surface and a rear end surface of a process reference, and the coaxiality of the large end and the small end can be improved after engraving and wire cutting.
The reinforcing washer 306, see fig. 10, can overcome the disadvantage that the common flat washer is recessed due to the oversized splined hole of the crankshaft end coupling 305 after the thickness is increased.
The hexagonal flange face fine tooth nut 307 firmly presses the crankshaft end coupler 305 against the crankshaft end of the engine under test through the reinforcing washer 306.
The hollow positioning pin 308 is shown in fig. 11, and the purpose of making the hollow positioning pin 308 into a hollow is that a hexagonal flange bolt can be penetrated in a hole, so that the two hollow positioning pins are used together to have a positioning effect, one end of the hollow positioning pin is inserted into a corresponding positioning pin hole of the engine mounting plate 303 to be tested, and the other end of the hollow positioning pin is aligned with the positioning pin hole of the main box body of the engine 400 to be tested, so that the engine to be tested is reliably positioned, and the test accuracy is improved.
The inner hexagon socket head cap screws 309 are used for tensioning the inner reinforcing rib plate 320, the outer reinforcing rib plate 318 and the ventilation reinforcing rib plate 304, and the front and rear tensioning of the three reinforcing rib plates adopts the inner hexagon socket head cap screws with the same specification, and due to the influence of the view display direction, the number 309 in fig. 3 is marked on the position of the other inner reinforcing rib plate, the number 309 in fig. 3 is two, the inner reinforcing rib plates are distributed on two sides of the inner side of the engine mounting plate and are blocked by the engine mounting plate, and the function of the number 309 of the inner hexagon socket head cap screws in fig. 3 can be known by referring to the number 320 in fig. 4.
The above-mentioned bottom surface has the tongue-and-groove briquetting 310, see fig. 12, the tongue-and-groove width of the bottom surface has tongue-and-groove briquetting 310, make little interference fit with the thickness of the engine mounting plate 303, two altogether, press-fit in parallel in the lower window of the engine mounting plate 303, make the engine mounting plate 303 hug closely the upper level of the bottom plate 301, because fixed frame 302 is fastened into an organic whole with the bottom plate 301 through the screw, compress tightly again after so the engine mounting plate 303 positions, make the vibrations reduce obviously during test.
The hexagon socket head cap screw 311 passes through the tight bottom face mortise pressing block 310 and the side face mortise pressing block 323 to tighten the fixing frame 302 integrally connected with the bottom plate 301 and the engine mounting plate 303.
The large washer 312 is used to compensate for the bolt through hole in the engine mounting plate 303 to avoid the inclination of the bearing surface of the bolt or to prevent the tightening effect.
The hexagonal flange face bolts 313 described above are used to couple the engine 400 to be tested with the engine mounting plate 303.
The flat key material pressing plate 314, see fig. 13, is obtained from a commercially available flat key profile with the length of 1 meter, is drilled after cutting, can replace a gasket, and is used for the position of the bottom plate 301 with the long groove, and the effect is more remarkable.
The hexagonal nut 315 fixes the whole test stand to the work table of the dynamometer by the flat key pressing plate 314 and the T-shaped groove bolt 316.
The T-shaped slot bolt 316 is placed in the T-shaped slot of the dynamometer 100 and can be called at any time.
The above-mentioned equal-height pad 317 is formed to have the same height as the bottom plate 301, and is used as an auxiliary pressing force, and is used when the pressing force is required to be increased outside the bottom plate as a large engine.
The external reinforcing rib plates 318, see fig. 14, fasten the engine mounting plate 303 and the bottom plate 301 together under the tension of the hexagon socket head cap screws, thereby achieving an auxiliary reinforcing effect.
In fig. 3, 16 hexagon socket head cap screws 319 are all hidden in the outer reinforcing rib plate 318, the ventilation reinforcing rib plate 304 and the fixing frame 302, and the function of the hexagon socket head cap screws is to fasten the outer reinforcing rib plate 318, the ventilation reinforcing rib plate 304, the inner reinforcing rib plate 320 and the fixing frame 302 with the base plate 301.
The two inner reinforcing ribs 320, see fig. 15, are identical in size and shape, and have two vertical screw holes, and are connected to the engine mounting plate 303 and the bottom plate 301 by hexagon socket head cap screws, thereby providing auxiliary reinforcement.
The hexagon socket head cap screw 321 is used for increasing tightness between the engine mounting plate 303 and the fixing frame 302.
The hex nut 322 prevents the hex flat end set screw 321 from loosening during the test.
The above-mentioned side has the tongue-and-groove briquetting 323, see fig. 16, the tongue-and-groove width of the side has tongue-and-groove briquetting 323, make little interference fit with the thickness of the engine mounting panel 303, two altogether, mirror image distribution is in the left and right sides of the engine mounting panel 303, two screw through holes on the side has tongue-and-groove briquetting 323, the fixed frame 302 of convenient connection with the hexagon socket head cap screw, make the engine mounting panel 303 clamp on the assembly of fixed frame 302 and bottom plate 301 more firmly, after installing the engine 400, it is more firm in the test process.
The screw 324 is a commercially available screw with a length of 1 meter, and is screwed on two sides of the upper end of the engine mounting plate by a double nut or a sleeve with a steel ball and a low friction coefficient, so that the internal thread handle sleeve 326 is convenient to assemble.
A hex nut 325, a commercially available standard, is fitted to the threaded rod 324 to prevent the internally threaded handle sleeve 326 from loosening during vibration.
The female screw handle cover 326, see fig. 17, is fitted to the screws 324 on both sides of the upper end of the engine mounting plate 303, and the fitted hexagonal nut 325 is reversely rotated to be closely fitted to the female screw handle cover, so that the replacement can be smoothly lifted when the engine mounting plate other than the 10 kinds of engines for the test is replaced.
The axial side view of the other engine mounting plate is shown in fig. 18, when the hole site on the engine mounting plate 303 is not enough, the other engine mounting plate can be replaced, and as the variety of the engine to be tested is continuously increased, when the hole site of the other engine mounting plate is not enough, the new other engine mounting plate is replaced, and the problem of manufacturing a plurality of technological equipment before various engine tests can be solved by replacing one engine mounting plate.
The above embodiment is only one of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. All equivalent changes in structure, shape and principle of the present application should be covered in the protection scope of the present application.
Claims (3)
1. The motorcycle engine insert plate type external characteristic test stand comprises a bottom plate, a fixed frame, an engine mounting plate, a ventilation reinforcing rib plate, a crankshaft coupling, a reinforcing gasket, a hollow positioning pin, a pressing block with a mortise on the bottom surface, a flat key material pressing plate, an equal-height cushion block, an external reinforcing rib plate, an internal reinforcing rib plate, a pressing block with a mortise on the side surface, an internal threaded handle sleeve and a standard component fastener, and is characterized in that the engine mounting plate is connected with the fixed frame fixed on the bottom plate in an insert plate type assembly mode;
the three long grooves of the fixed frame are equal in width, equal in length and equal in height, the width dimension of the grooves is the same as the thickness dimension of the engine mounting plate, the tolerance requirement is made into micro clearance fit, the screw holes on the bottom surface are connected with the bottom plate, the screw holes on the top surface are used as screw tensioning screw holes of a pressing block with a mortise on the bottom surface and a pressing block with a mortise on the side surface, and the screw holes on the front surface and the back surface are used as screw jacking holes of a hexagon flat end set screw;
the engine mounting plate is characterized in that 2 larger rectangular windows are arranged at the upper part of the engine mounting plate, a crankshaft coupling is avoided, 2 windows at the lower part are avoided, a pressing block with a mortise is arranged at the bottom surface, 2 notches at the lower part are avoided, a wire cutting deformation preventing rib on a fixing frame is avoided, a right through hole-free pit slot and a through hole in the pit slot are avoided, an engine protruding part is avoided, 2 convex concave tenons at the lower part are arranged, a pressing block with a mortise at the side surface and an avoidance slot of a tightening hexagon socket head screw rod are arranged, screw holes are tapped in the 2 convex straight tenons at the upper part, an internal thread handle sleeve is assembled, 8 regularly distributed larger holes are formed, 4 holes penetrate through the hexagon socket head screw to tighten an internal reinforcing rib plate, 4 holes at the left side and right side penetrate through the hexagon socket head screw to tighten an external reinforcing rib plate in the opposite direction, holes marked by carving correspond to hollow positioning pin holes of various engines to be tested, bolts with the same diameter penetrate through the hexagon flange surface screw, and the rest hole slots are all avoided engine parts;
the width of the mortises with the mortises pressing blocks on the bottom surface is slightly in interference fit with the thickness of the engine mounting plate, and the two mortises are arranged in parallel and pressed on the lower window of the engine mounting plate, so that the engine mounting plate clings to the upper plane of the bottom plate;
the width of the mortises with mortises pressing blocks on the side surfaces is slightly in interference fit with the thickness of the engine mounting plate, two mortises are distributed on the left side and the right side of the engine mounting plate in a mirror image mode, and two screw through holes on the mortises pressing blocks with the side surfaces are connected with a fixing frame through hexagon socket head cap screws.
2. The motorcycle engine plug-in type external characteristic test stand according to claim 1, wherein the coupling is assembled on the engine crankshaft, and the end face is provided with a claw foot of a semi-closed structure.
3. The motorcycle engine insert plate type external characteristic test stand according to claim 1, wherein the bottom plate is formed with a countersink embedded in the hexagon socket head cap screw and a long groove movable along the T-shaped groove bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629358.5A CN110000722B (en) | 2018-12-22 | 2018-12-22 | Plug-in board type external characteristic test stand for motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811629358.5A CN110000722B (en) | 2018-12-22 | 2018-12-22 | Plug-in board type external characteristic test stand for motorcycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110000722A CN110000722A (en) | 2019-07-12 |
| CN110000722B true CN110000722B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811629358.5A Active CN110000722B (en) | 2018-12-22 | 2018-12-22 | Plug-in board type external characteristic test stand for motorcycle engine |
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| CN (1) | CN110000722B (en) |
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