CN101924428B - Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof - Google Patents
Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof Download PDFInfo
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- CN101924428B CN101924428B CN2010102915990A CN201010291599A CN101924428B CN 101924428 B CN101924428 B CN 101924428B CN 2010102915990 A CN2010102915990 A CN 2010102915990A CN 201010291599 A CN201010291599 A CN 201010291599A CN 101924428 B CN101924428 B CN 101924428B
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Abstract
The invention discloses a bearing pressmounting device applied to a speed reducer housing and a pressmounting method thereof, which can improve coaxiality and pressmounting efficiency. The pressmounting device comprises a positioning mandrel arranged on a rack foundation and provided with an object stage and a pressure head on a rack top beam. The pressure head is provided with a pressure head through a hole and a set of boss, the diameter of the pressure head through hole is larger than the diameter of the positioning mandrel, the axial lead of the pressure head, the axial lead of the pressure head through hole and the axial lead of the positioning mandrel coincide; the object stage comprises a second bearing, a bearing pedestal of the speed reducer housing and a supporting surface of a first bearing which are used to be sheathed with the positioning mandrel from the bottom to the top in sequence, the boss on the pressure head drives the first bearing and the second bearing to be pressed into the bearing pedestal through a first pressing bearing in the primary pressing stroke; in addition, the rack is externally provided with a grease injecting system which can accurately inject grease to bear gaps after the first bearing and the second bearing are pressed into the bearing pedestal, pressmouting and grease injection take shorter time and the production efficiency is high.
Description
Technical field
The present invention relates to a kind of bearing press mounting equipment and pressing method that is used to scrape the reducer shell of hydroelectric machine.
Background technology
The reducer shell assembly of scraping on the hydroelectric machine is to scrape one of strength member on the hydroelectric machine.This motor is wanted operate as normal; Must guarantee between stator, rotor, the reducer shell relative position accurately and two bearing no-floats in the bearing pedestal of reducer shell and the bearing pedestal, influence two bearings has with the factor that cooperates of bearing pedestal: inject between the pressing method of bearing, two bearings grease how much, the position of injection grease and the uniformity coefficient of grease injection etc.
Existing press-loading process is:
Earlier second bearing holder (housing, cover) is connected on the following mandrel on the frame; The central authorities of following mandrel have down the mandrel through hole; Bearing pedestal with reducer shell presses down in second bearing embeds bearing pedestal through pressure head again, and the bottom that will go up mandrel then embeds in the following mandrel through hole of following mandrel, is embedded with clutch shaft bearing outside the top of last mandrel; To go up mandrel and clutch shaft bearing together is pressed in the bearing pedestal through pressure head, will go up mandrel at last and together take out with following mandrel.
On above-mentioned press-loading process basis, can above-mentioned press-loading process further be divided into direct pressure closing and turgor pressure method according to the size of last mandrel and following mandrel.
Direct pressure closing; The diameter of the upper diameter of the last mandrel that adopts and time mandrel is all than the little 0.015mm of diameter of brearing bore; After two bearings are pressed in the bearing pedestal, the reduced 0.005mm of the brearing bore of each bearing, the axiality of the brearing bore of two bearings is 0.006-0.01mm.Because the axiality of the brearing bore of two bearings is lower, cause that output shaft is relatively poor with cooperating of bearing, the motor friction is big, electric current greatly, the motor feels hot defective such as fast, make that the motor overall performance is relatively poor.
The turgor pressure method; The diameter of the upper diameter of the last mandrel that adopts and time mandrel is all than the big 0.01mm of brearing bore of bearing; After two bearings are pressed in the bearing pedestal; Brearing bore is risen greatly, the diameter of the brearing bore of each bearing big 0.003mm that risen, and the axiality of the brearing bore of two bearings is 0.005-0.008mm.Because the diameter of the relevant mandrel that the turgor pressure method adopts is bigger than the diameter of brearing bore, relevant mandrel is difficult to separate with bearing through commonsense method after inserting brearing bore, and therefore needing to adopt down, the rigid mandrel of will being correlated with of cylinder withdraws from; After relevant mandrel withdraws from; Because brearing bore loses support, brearing bore shrinks under the bearing pedestal effect, and this just causes can producing the gap between outer wall and the bearing pedestal of bearing; The generation in gap can cause the relative bearing pedestal play of bearing; After bearing used a period of time, the bearing in the bearing pedestal also possibly withdraw from from bearing pedestal, has a strong impact on the normal use of motor.In addition, owing to adopt two press of taking offence, not only cost is high, and very inconvenience of operation.
No matter be direct pressure closing or turgor pressure method, all must earlier a bearing be pressed into, again another bearing is pressed into, thus bearing to press-fit efficient lower, and the axiality of the brearing bore of two bearings is lower.
After two bearings are pressed into bearing pedestal, need be in the bearing slit between two bearings grease, help like this reducing friction, reduce motor noise and the useful life that prolongs motor.But present grease method is: earlier the grease brush is stretched in the brearing bore, again with in the bearing slit of grease brush between two bearings, owing to adopt manual operations; And the brearing bore space is narrow and small; Make that grease is difficult to evenly be full of the bearing slit, this just causes bearing, and lubricant effect is relatively poor in use, and the useful life of bearing is shorter; And there is depilation phenomenon in grease brush, can bring potential safety hazard to motor.
Summary of the invention
The technical problem that the present invention solves provides and a kind ofly improves axiality and can improve the bearing press mounting equipment and the pressing method that are used for reducer shell that press-fits efficient.
The technical solution adopted for the present invention to solve the technical problems is: be used for the bearing press mounting equipment of reducer shell, comprise frame, said frame comprises gantry base and frame back timber,
Also comprise the positioning core axle that is provided with objective table that is installed on the gantry base; On the frame back timber of above-mentioned positioning core axle top pressure head is installed; Said pressure head is provided with the pressure head through hole; The diameter of said pressure head through hole is greater than the diameter of positioning core axle, and the axial line of the axial line of above-mentioned pressure head, pressure head through hole and the axial line of positioning core axle overlap;
Said objective table comprises the face of putting that carries of the bearing pedestal that is used to support second bearing that is socketed in successively from the bottom to top on the positioning core axle, reducer shell and clutch shaft bearing, and clutch shaft bearing orders about clutch shaft bearing to above-mentioned pressure head and second bearing is pressed in the bearing pedestal through pressing down in the stroke once pressing down.
Further be: upper edge, the lower surface pressure head of said pressure head circumferentially is provided with one group of boss that is used to press down clutch shaft bearing; When clutch shaft bearing and second bearing are pressed in the bearing pedestal; The top of said positioning core axle is positioned at the pressure head through hole on the pressure head; Boss on the said pressure head is looped around the positioning core axle outside, and above-mentioned boss contacts with the end face of above-mentioned bearing pedestal.
Further be: said frame back timber is provided with the upper limit post towards gantry base; The gantry base of said upper limit post below is provided with the lower limit post towards the upper limit post; When the boss on the said pressure head made clutch shaft bearing and bearing pedestal riveted joint through the end face that presses down bearing pedestal, above-mentioned upper limit post contacted with the lower limit post.
Further be: said objective table is provided with the objective table through hole; Above-mentioned objective table is slidingly matched through objective table through hole and positioning core axle; On the gantry base of above-mentioned objective table below brace table is installed; Be fixed with one group of back-moving spring vertical with brace table on the said brace table, the top and the objective table of said back-moving spring are connected.
Further be: said brace table and gantry base form the screw rod installation portion; Be positioned at said back-moving spring below on the said screw rod installation portion and be provided with the shoulder hole that is used to install screw rod; Being positioned at back-moving spring top on the said objective table is provided with and is used to install the screw flight hole; Be provided with screw rod in above-mentioned each back-moving spring, the afterbody of said screw rod is threaded with screwed hole on being arranged on objective table, and the head of above-mentioned screw rod cooperates with said shoulder hole.
Further be: said positioning core axle set inside has grease passage; Said frame outer setting has the grease injected system; Said grease passage links to each other with said grease injected system through petroleum pipeline; Above-mentioned positioning core axle upper edge positioning core axle circumferentially is provided with one group of oil filler point, and said oil filler point is connected with the inner grease passage of positioning core axle and clutch shaft bearing in being pressed into bearing pedestal and the bearing slit between second bearing.
Further be: said grease injected system comprises source of the gas, threeway direct-acting electromagnetic valve, built-in Pressure gauge air composition element and the appendix that links to each other successively;
Also comprise cylinder; Said cylinder comprises the chamber that is formed by cylinder lid and cylinder casing; Said chamber forms upper chamber that links to each other with appendix and the lower chambers that is used to store grease through the piston that is provided with in the chamber, and said lower chambers links to each other with the grease passage of positioning core axle set inside through petroleum pipeline;
Said cylinder lid is provided with scale; The bottom of said scale is positioned at upper chamber and links to each other with piston; The top of said scale is positioned at cylinder cover body top and is provided with caging bolt; Be socketed with back lash spring on the said scale, the top of said back lash spring cooperates with caging bolt, and the bottom of above-mentioned back lash spring is installed on the cylinder lid.
Pressing method comprises frame, and said frame comprises gantry base and frame back timber, and is further comprising the steps of:
A, the positioning core axle have objective table is installed on gantry base; On the frame back timber above the above-mentioned positioning core axle, pressure head is installed; Said pressure head is provided with the pressure head through hole; The diameter of said pressure head through hole is greater than the diameter of positioning core axle, and the axial line of the axial line of above-mentioned pressure head, pressure head through hole and the axial line of positioning core axle keep overlapping;
B, elder generation are connected on second bearing holder (housing, cover) on the positioning core axle and by the objective table of installing on the positioning core axle and support above-mentioned second bearing, and make the axial line of above-mentioned second bearing keep overlapping with the axial line of positioning core axle;
C, be connected on the bearing sleeve of reducer shell on the positioning core axle again and place on above-mentioned second bearing, make the axial line of bearing pedestal keep overlapping with the axial line of positioning core axle;
D, be socketed in clutch shaft bearing on the positioning core axle then and place on the bearing pedestal of above-mentioned reducer shell, make the axial line of said clutch shaft bearing keep overlapping with the axial line of positioning core axle;
E, pressure head circumferentially is provided with one group of boss in the upper edge, lower surface of said pressure head, presses down clutch shaft bearing through the boss on the pressure head clutch shaft bearing and second bearing are pressed in the bearing pedestal of reducer shell.
Further be: also comprise step F, after clutch shaft bearing and second bearing were pressed in the bearing pedestal of reducer shell, the end face that continues to press down bearing pedestal through the boss on the pressure head made clutch shaft bearing and bearing pedestal riveted joint.
Further be: also comprise step G; Said positioning core axle set inside has grease passage; Said frame outer setting has the grease injected system; Said grease passage links to each other with said grease injected system through petroleum pipeline, and above-mentioned positioning core axle upper edge positioning core axle circumferentially is provided with one group of oil filler point, and said oil filler point is connected with the inner grease passage of positioning core axle and clutch shaft bearing in being pressed into bearing pedestal and the bearing slit between second bearing; When the end face that continues to press down bearing pedestal through the boss on the pressure head makes clutch shaft bearing and bearing pedestal riveted joint, through injecting grease in the bearing slit of oil filler point between the clutch shaft bearing and second bearing.
The invention has the beneficial effects as follows:
1, pressure head is once pressing down in the stroke, and clutch shaft bearing orders about clutch shaft bearing and second bearing is pressed in the bearing pedestal of reducer shell through pressing down, and can make the axiality of the clutch shaft bearing and second bearing be increased to 0.002-0.004mm.
2,, therefore can improve and press-fit efficient because clutch shaft bearing and second bearing are in pressure head presses down the bearing pedestal that is pressed into reducer shell in the process together.
3,, therefore can guarantee in the accurate injection bearing of the grease slit owing to the bearing slit of oil filler point between the clutch shaft bearing and second bearing.
4, because positioning core axle circumferentially is provided with one group of oil filler point, therefore grease accurately and comparatively uniformly is injected in the bearing slit, can practices thrift the use amount of grease, reduce cost.
5, because the grease injection process can be carried out immediately, and it is very short that front and back differ the time, therefore can significantly improve production efficiency after the bearing press mounting process is accomplished.
6, through grease injected system may command grease injection rate, can guarantee that bearing obtains the sufficient lubrication of grease.
7, meet the requirement that clean environment firendly production and lean are produced.
Description of drawings
Fig. 1 is for press-fiting the sketch map of second bearing in the existing press-loading process;
Fig. 2 is for press-fiting the sketch map of clutch shaft bearing in the existing press-loading process;
Fig. 3 is the sketch map that is used for the bearing press mounting equipment of reducer shell of the present invention;
Fig. 4 is the enlarged drawing of a-quadrant among Fig. 3;
Fig. 5 is for being provided with the sketch map of the pressure head of boss among the present invention;
Fig. 6 is pressed into the sketch map in the bearing pedestal through the boss on the pressure head for the clutch shaft bearing and second bearing;
Fig. 7 is oil filler point and the corresponding relation sketch map between the bearing slit on the positioning core axle;
Fig. 8 is the enlarged drawing in B zone among Fig. 7.
Be labeled as among the figure: 1-lower limit post, 2-upper chamber, 3-cylinder lid, 4-brace table, 5-screw rod, 6-back-moving spring, 7-afterbody; 8-carries the face of putting, 9-objective table, 10-lower surface, 11-boss, 12-pressure head, 13-frame, 14-frame back timber; 15-upper limit post, 16-gantry base, 17-head, 18-shoulder hole, 19-petroleum pipeline, 20-scale, 21-caging bolt; The 22-back lash spring, 23-appendix, the built-in Pressure gauge air of 24-composition element, 25-threeway direct-acting electromagnetic valve, 26-piston, 27-lower chambers; The 28-cylinder casing, 29-cylinder, 30-grease injected system, 31-positioning core axle, 33-bearing slit, 34-objective table through hole; The 35-grease passage, 36-reducer shell, 37-bearing pedestal, 38-second bearing, mandrel under the 39-, 40-clutch shaft bearing; The last mandrel of 41-, 42-screwed hole, 43-pressure head through hole, 44-bearing slit, 45-back timber through hole, mandrel through hole under the 50-.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Can know by Fig. 1 and Fig. 2; Existing press-loading process is: earlier second bearing 38 is socketed on the following mandrel 39 on the frame; The central authorities of following mandrel 39 have down mandrel through hole 50, and the bearing pedestal 37 with reducer shell 36 presses down in second bearing, 38 embedding bearing pedestals 37 through pressure head 12 again, and the bottom that will go up mandrel 41 then embeds in the following mandrel through hole 50 of following mandrel 39; Be embedded with clutch shaft bearing 40 outside the top of last mandrel 41; To go up mandrel 41 through pressure head 12 and together be pressed in the bearing pedestal 37 with clutch shaft bearing 40, will go up mandrel 41 at last and together take out with following mandrel 39, the pressure head 12 that uses in the above-mentioned press-loading process is flat pressure heads.
Extremely shown in Figure 8 like Fig. 3; The bearing press mounting equipment that is used for reducer shell of the present invention; Comprise frame 13, said frame 13 comprises gantry base 16 and frame back timber 14, also comprises the positioning core axle that is provided with objective table 9 31 that is installed on the gantry base 16; On the frame back timber 14 of above-mentioned positioning core axle 31 tops pressure head 12 is installed; Said pressure head is provided with pressure head through hole 43, and the diameter of said pressure head through hole 43 is greater than the diameter of positioning core axle 31, and the axial line of the axial line of above-mentioned pressure head 12, pressure head through hole and the axial line of positioning core axle 31 overlap; Said objective table 9 comprises the face 8 of putting that carries of the bearing pedestal 37 that is used to support second bearing 38 that is socketed in successively from the bottom to top on the positioning core axle 31, reducer shell 36 and clutch shaft bearing 40, and clutch shaft bearing 40 orders about clutch shaft bearing 40 to above-mentioned pressure head 12 and second bearing 38 is pressed in the bearing pedestal 37 through pressing down in the stroke once pressing down.In the said structure, objective table 9 can be connected on the axle body of positioning core axle 31, also can be directly installed on the gantry base 16 or adopts other mounting means.Adopt said structure; After clutch shaft bearing 40 and second bearing 38 all are pressed in the bearing pedestal 37; The top of positioning core axle 31 is positioned at the pressure head through hole 43 of pressure head 12; Because the clutch shaft bearing 40 and second bearing 38 are all to be pressed in the stroke in the bearing pedestal 37 once pressing down of pressure head 12, therefore, in clutch shaft bearing 40 and the process of second bearing 38 in being pressed into bearing pedestal 37; Even the axial line of clutch shaft bearing 40 can not overlap with the axial line of second bearing 38 fully; Also be towards the same side skew, and clutch shaft bearing 40 all is socketed on the same positioning core axle 37 with second bearing 38, comprehensively above factor makes the axiality of the clutch shaft bearing 40 and second bearing 38 can be increased to 0.002-0.004mm.The above-mentioned clutch shaft bearing and second bearing are just just distinguished for convenience.
As shown in Figure 7; The lower surface 10 upper edge pressure heads 12 of said pressure head 12 circumferentially are provided with one group of boss 11 that is used to press down clutch shaft bearing 40; When clutch shaft bearing 40 and second bearing 38 are pressed in the bearing pedestal 37; The top of said positioning core axle 31 is positioned at the pressure head through hole 43 on the pressure head 12, and the boss 11 on the said pressure head 12 is looped around positioning core axle 31 outsides, and above-mentioned boss 11 contacts with the end face of above-mentioned bearing pedestal 37.In the said structure, the quantity of one group of boss 11 can be 3,5, and 7,10 or other quantity.Adopt said structure, can clutch shaft bearing 40 and second bearing 38 be pressed in the bearing pedestal 37 through one group of boss 11 on the pressure head 12, and continuing to press down clutch shaft bearing 40 and bearing pedestal 37 are riveted through pressure head 12; Promptly press down the end face of bearing pedestal 37 through above-mentioned one group of boss 11 and then on the end face of bearing pedestal 37, form one group of groove, groove can be 0.2mm along the axial depth of reducer shell, 0.5mm; 1mm, 1.5mm, 2mm; 2.5mm etc.; Be preferably 1-3mm, come the axial location of the bearing in the axes bearing 37, clutch shaft bearing 40 and second bearing 38 axial endplay in use in like this can axes bearing 37 through groove.In addition; After being provided with boss, can the clutch shaft bearing and second bearing be pressed into bearing pedestal through boss, and continuing to press down and can make the riveted joint of clutch shaft bearing and bearing pedestal through boss; Whole process once presses down stroke and can accomplish through pressure head, has significantly improved to press-fit efficient.
As shown in Figure 3; For the whole fail safe that press-fits process; Avoid because the stroke that presses down of pressure head 12 is crossed ambassador's reducer shell 36 and is damaged; Said frame back timber 14 is provided with the upper limit post 15 towards gantry base 16; The gantry base 16 of said upper limit post 15 belows is provided with the lower limit post 1 towards upper limit post 15, and when the boss 11 on the said pressure head 12 made clutch shaft bearing 40 with bearing pedestal 37 riveted joints through the end face that presses down bearing pedestal 37, above-mentioned upper limit post 15 contacted with lower limit post 1.When upper limit post 15 with after lower limit post 1 contacts, pressure head 12 can't continue to press down, and therefore can improve the whole fail safe that press-fits process.In addition; In order further to increase fail safe, on the frame back timber 14 of above-mentioned pressure head 12 tops back timber through hole 45 can be set, the diameter of back timber through hole 45 is identical with pressure head through hole 43 diameters; And the axial line of back timber through hole 45 overlaps with the axial line of pressure head through hole 43; After back timber through hole 45 was set, positioning core axle 31 can extend out to the top of frame back timber 14 successively through pressure head through hole 43 and back timber through hole 45, can guarantee that like this positioning core axle 31 can not collide frame back timber 14.
Take off from positioning core axle for the ease of press-fiting the reducer shell that finishes; As shown in Figure 3; Said objective table 9 is provided with objective table through hole 34, and above-mentioned objective table 9 is slidingly matched through objective table through hole 34 and positioning core axle 31, on the gantry base 16 of above-mentioned objective table 9 belows brace table 4 is installed; Be fixed with one group of back-moving spring 6 vertical with brace table 4 on the said brace table 4, the top of said back-moving spring 6 and objective table 9 are connected.Pressure head presses down in the process; Objective table moves to brace table, and back-moving spring is in compressive state, when press-fiting after process finishes; Move on the pressure head; Objective table moves under the effect of back-moving spring, and then moves on the reducer shell on the drive objective table, and then is convenient to take off from positioning core axle press-fiting the reducer shell that finishes.
As shown in Figure 3; In order further to be convenient to take off from positioning core axle with press-fiting the reducer shell that finishes; Said brace table 4 forms the screw rod installation portion with gantry base 16; Be positioned at said back-moving spring 6 belows on the said screw rod installation portion and be provided with the shoulder hole 18 that is used to install screw rod, be positioned at back-moving spring 6 tops on the said objective table 9 and be provided with and be used to install screw flight hole 42, be provided with screw rod 5 in above-mentioned each back-moving spring 6; The afterbody 7 of said screw rod 5 is threaded with screwed hole 42 on being arranged on objective table 9, and the head 17 of above-mentioned screw rod 5 cooperates with said shoulder hole 18.Adopt said structure, in press-fiting process, screw rod 5 moves down along shoulder hole 18; When press-fit finish after, move on the pressure head, under the effect of back-moving spring 6; Move on the objective table 9, move on the objective table 9 to drive on the screw rod 5 and move, when moving to extreme position on the objective table 9; The head 17 of screw rod 5 receives the spacing of shoulder hole, and at this moment the head 17 of screw rod 5 cooperates with shoulder hole 18, and then moves in 9 continuation of prevention objective table; Promptly, guarantee that the reducer shell on the objective table 9 takes off smoothly to the mobile position-limiting action that plays of objective table 9.
For the ease of in the bearing slit, injecting grease; Extremely shown in Figure 8 like Fig. 3; Said positioning core axle 31 set inside have grease passage 35; Said frame 13 outer setting have grease injected system 30; Said grease passage 35 links to each other with said grease injected system 30 through petroleum pipeline 19, and above-mentioned positioning core axle 31 upper edge positioning core axles 31 circumferentially are provided with one group of oil filler point 33, and said oil filler point 33 is connected with positioning core axle 31 inner grease passages 35 and clutch shaft bearing 40 in being pressed into bearing pedestal 37 and the bearing slit 44 between second bearing 38.Through the grease injected system, can inject grease to the inner grease passage of positioning core axle, through oil filler point, can be with in the grease injection bearing slit, like this can be accurately with in the grease injection bearing slit.In the said structure, the quantity of one group of oil filler point 33 can be 3,5, and 7 or other quantity.
The execution mode of above-mentioned grease injected system has multiple; The big flow oil addition of pair column for example of the prior art system, the quantitative charging machine of lubricating oil or micro-grease quantitative filling system etc.; But preferred implementation is: said grease injected system 30 comprises source of the gas, threeway direct-acting electromagnetic valve 25, built-in Pressure gauge air composition element 24 and the appendix 23 that links to each other successively; Above-mentioned source of the gas is used to provide gases at high pressure, and above-mentioned built-in Pressure gauge air composition element 24 is used for controlling and adjusting the gas pressure of grease injected system; Also comprise cylinder 29; Said cylinder 29 comprises the chamber that is formed by cylinder lid 3 and cylinder casing 28; Said chamber forms upper chamber 2 that links to each other with appendix 23 and the lower chambers 27 that is used to store grease through the piston 26 that is provided with in the chamber, and said lower chambers 27 links to each other with the grease passage 35 of positioning core axle 31 set inside through petroleum pipeline 19; Said cylinder lid 3 is provided with scale 20; The bottom of said scale 20 is positioned at upper chamber 2 and links to each other with piston 26; The top of said scale 20 is positioned at cylinder cover body 3 tops and is provided with caging bolt 21; Be socketed with back lash spring 22 on the said scale 20, the top of said back lash spring 22 cooperates with caging bolt 21, and the bottom of above-mentioned back lash spring 22 is installed on the cylinder lid 3.The top of above-mentioned back lash spring 22 cooperates with caging bolt 21, is meant that the top of back lash spring 22 is spacing by caging bolt 21.Adopt said structure, can in the bearing slit, inject grease on the one hand, on the other hand, threeway direct-acting electromagnetic valve 25 can accurately be controlled the grease injection rate with built-in Pressure gauge air composition element 24, can in the bearing slit, inject an amount of grease.Because grease injects too much, causes waste, improve production cost; Grease injects very few, and then frictional force is big, and current of electric is big; The quick abrasion of corresponding upper bearing (metal) and lower bearing, the shortening electrical machinery life, therefore accurately control grease injection rate is most important to normal use of motor and electrical machinery life.In addition, in oiling fat process, along with piston constantly moves down, the greases in the lower chambers 27 reduce gradually, and the scale that connects on the piston also can constantly move down with piston, so just can be from the cylinder outside grease of Direct observation bottom chamber remain situation.In addition, after oiling fat process finishes, need the gas in the grease injected system be drawn into through threeway direct-acting electromagnetic valve 25; Continue to move down because of gas remaining in the grease injected system can promote piston, the continuing to move down of piston possibly be injected into too much grease in the bearing slit, on the other hand on the one hand; After reducer shell was taken off from positioning core axle, too much grease can flow out from the oil filler point on the positioning core axle, pollutes; Even but bleed through threeway direct-acting electromagnetic valve 25, also possibly can't gas be drawn in the short time, be drawn into faster in order to impel the gas in the grease injected system; Scale is provided with back lash spring, because in oiling fat process, scale constantly moves down and impels back lash spring constantly to be compressed; After oiling fat process finishes; Along with the continuous minimizing of gas in the grease injected system, the back lash spring of compressive state stretches gradually, and the stretching, extension of back lash spring can drive on the piston and move; Move on the piston to help the gas in the upper chamber of cylinder is discharged; Also help the gas in the grease injected system is drawn out of, and, move the grease that can avoid too much on the piston and be injected in the bearing slit or and flow out from oil filler point.
Pressing method of the present invention comprises frame 13, and said frame 13 comprises gantry base 16 and frame back timber 14, and is further comprising the steps of:
A, the positioning core axle 31 have objective table 9 is installed on gantry base 16; Pressure head 12 is installed on the frame back timber 13 above the above-mentioned positioning core axle 31; Said pressure head 12 is provided with pressure head through hole 43; The diameter of said pressure head through hole 43 is greater than the diameter of positioning core axle 31, and the axial line of the axial line of above-mentioned pressure head 12, pressure head through hole 43 and the axial line of positioning core axle 31 keep overlapping;
B, elder generation are socketed in second bearing 38 on the positioning core axle 31 and by the objective table of installing on the positioning core axle 31 9 and support above-mentioned second bearing 38, and make the axial line of above-mentioned second bearing 38 keep overlapping with the axial line of positioning core axle 31;
C, be socketed in the bearing pedestal 37 of reducer shell 36 on the positioning core axle 31 again and place on above-mentioned second bearing 38, make the axial line of bearing pedestal 37 keep overlapping with the axial line of positioning core axle 31;
D, be socketed in clutch shaft bearing 40 on the positioning core axle 31 then and place on the bearing pedestal 37 of above-mentioned reducer shell 36, make the axial line of said clutch shaft bearing 40 keep overlapping with the axial line of positioning core axle 31;
E, 10 upper edge pressure heads 12 circumferentially are provided with one group of boss 11 in the lower surface of said pressure head 12, press down clutch shaft bearing 40 through the boss on the pressure head 12 11 clutch shaft bearing 40 and second bearing 38 are pressed in the bearing pedestal 37 of reducer shell 36.
In order to limit the axial endplay of the clutch shaft bearing and second bearing; Also comprise step F; After clutch shaft bearing 40 and second bearing 38 were pressed in the bearing pedestal 37 of reducer shell 36, the end face that continues to press down bearing pedestal 37 through the boss on the pressure head 12 11 made clutch shaft bearing 40 and bearing pedestal 37 riveted joints.
In order in the bearing slit, to inject grease accurately; Also comprise step G; Said positioning core axle 31 set inside have grease passage 35; Said frame 13 outer setting have grease injected system 30; Said grease passage 35 links to each other with said grease injected system 30 through petroleum pipeline 19, and above-mentioned positioning core axle 31 upper edge positioning core axles 31 circumferentially are provided with one group of oil filler point 33, and said oil filler point 33 is connected with positioning core axle 31 inner grease passages 35 and clutch shaft bearing 40 in being pressed into bearing pedestal 37 and the bearing slit 44 between second bearing 38; When the end face that continues to press down bearing pedestal 37 through the boss on the pressure head 12 11 makes clutch shaft bearing 40 and bearing pedestal 37 riveted joints, through injecting grease in the bearing slit 44 of oil filler point 33 between the clutch shaft bearing 40 and second bearing 38.
Claims (10)
1. the bearing press mounting equipment that is used for reducer shell comprises frame (13), and said frame (13) comprises gantry base (16) and frame back timber (14), it is characterized in that:
Also comprise the positioning core axle that is provided with objective table (9) (31) that is installed on the gantry base (16); On the frame back timber (14) of above-mentioned positioning core axle (31) top pressure head (12) is installed; Said pressure head is provided with pressure head through hole (43); The diameter of said pressure head through hole (43) is greater than the diameter of positioning core axle (31), and the axial line of the axial line of above-mentioned pressure head (12), the axial line of pressure head through hole and positioning core axle (31) overlaps;
Said objective table (9) comprises the face (8) of year putting of the bearing pedestal (37) that is used for supporting second bearing (38) be socketed in successively from the bottom to top on the positioning core axle (31), reducer shell (36) and clutch shaft bearing (40), and clutch shaft bearing (40) orders about clutch shaft bearing (40) to above-mentioned pressure head (12) and second bearing (38) is pressed in the bearing pedestal (37) through pressing down in the stroke once pressing down.
2. the bearing press mounting equipment that is used for reducer shell as claimed in claim 1; It is characterized in that: lower surface (10) the upper edge pressure head (12) of said pressure head (12) circumferentially is provided with one group of boss (11) that is used to press down clutch shaft bearing (40); When clutch shaft bearing (40) and second bearing (38) are pressed in the bearing pedestal (37); The top of said positioning core axle (31) is positioned at the pressure head through hole (43) on the pressure head (12); Boss (11) on the said pressure head (12) is looped around positioning core axle (31) outside, and above-mentioned boss (11) contacts with the end face of above-mentioned bearing pedestal (37).
3. the bearing press mounting equipment that is used for reducer shell as claimed in claim 2; It is characterized in that: said frame back timber (14) is provided with the upper limit post (15) towards gantry base (16); The gantry base (16) of said upper limit post (15) below is provided with the lower limit post (1) towards upper limit post (15); When the boss (11) on the said pressure head (12) made clutch shaft bearing (40) with bearing pedestal (37) riveted joint through the end face that presses down bearing pedestal (37), above-mentioned upper limit post (15) contacted with lower limit post (1).
4. the bearing press mounting equipment that is used for reducer shell as claimed in claim 1; It is characterized in that: said objective table (9) is provided with objective table through hole (34); Above-mentioned objective table (9) is slidingly matched through objective table through hole (34) and positioning core axle (31); On the gantry base (16) of above-mentioned objective table (9) below brace table (4) is installed, is fixed with one group of back-moving spring (6) vertical with brace table (4) on the said brace table (4), the top of said back-moving spring (6) and objective table (9) are connected.
5. the bearing press mounting equipment that is used for reducer shell as claimed in claim 4; It is characterized in that: said brace table (4) forms the screw rod installation portion with gantry base (16); Be positioned at said back-moving spring (6) below on the said screw rod installation portion and be provided with the shoulder hole (18) that is used to install screw rod; Being positioned at back-moving spring (6) top on the said objective table (9) is provided with and is used to install screw flight hole (42); Be provided with screw rod (5) in above-mentioned each back-moving spring (6), the afterbody (7) of said screw rod (5) is threaded with screwed hole (42) on being arranged on objective table (9), and the head (17) of above-mentioned screw rod (5) cooperates with said shoulder hole (18).
6. like any described bearing press mounting equipment that is used for reducer shell in the claim 1 to 5; It is characterized in that: said positioning core axle (31) set inside has grease passage (35); Said frame (13) outer setting has grease injected system (30); Said grease passage (35) links to each other with said grease injected system (30) through petroleum pipeline (19); Above-mentioned positioning core axle (31) upper edge positioning core axle (31) circumferentially is provided with one group of oil filler point (33), and said oil filler point (33) is connected with the inner grease passage (35) of positioning core axle (31) and clutch shaft bearing (40) in being pressed into bearing pedestal (37) and the bearing slit (44) between second bearing (38).
7. the bearing press mounting equipment that is used for reducer shell as claimed in claim 6 is characterized in that:
Said grease injected system (30) comprises source of the gas, threeway direct-acting electromagnetic valve (25), built-in Pressure gauge air composition element (24) and the appendix (23) that links to each other successively;
Also comprise cylinder (29); Said cylinder (29) comprises the chamber that is formed by cylinder lid (3) and cylinder casing (28); Said chamber forms upper chamber (2) that links to each other with appendix (23) and the lower chambers (27) that is used to store grease through the piston (26) that is provided with in the chamber, and said lower chambers (27) links to each other with the grease passage (35) of positioning core axle (31) set inside through petroleum pipeline (19);
Said cylinder lid (3) is provided with scale (20); The bottom of said scale (20) is positioned at upper chamber (2) and links to each other with piston (26); The top of said scale (20) is positioned at cylinder cover body (3) top and is provided with caging bolt (21); Be socketed with back lash spring (22) on the said scale (20), the top of said back lash spring (22) cooperates with caging bolt (21), and the bottom of above-mentioned back lash spring (22) is installed on the cylinder lid (3).
8. pressing method comprises frame (13), and said frame (13) comprises gantry base (16) and frame back timber (14), it is characterized in that may further comprise the steps:
A, the positioning core axle (31) that has objective table (9) go up to be installed in gantry base (16); Go up installation pressure head (12) at the frame back timber (13) of above-mentioned positioning core axle (31) top; Said pressure head (12) is provided with pressure head through hole (43); The diameter of said pressure head through hole (43) is greater than the diameter of positioning core axle (31), and the axial line of the axial line of above-mentioned pressure head (12), pressure head through hole (43) and the axial line of positioning core axle (31) keep overlapping;
B, elder generation are socketed in positioning core axle (31) with second bearing (38) and upward and by positioning core axle (31) go up objective table (9) support above-mentioned second bearing of installing (38), and the axial line of above-mentioned second bearing (38) is overlapped with the axial line maintenance of positioning core axle (31);
C, again the bearing pedestal (37) of reducer shell (36) is socketed in positioning core axle (31) and goes up and place on above-mentioned second bearing (38), the axial line of bearing pedestal (37) is overlapped with the axial line maintenance of positioning core axle (31);
D, then clutch shaft bearing (40) is socketed in positioning core axle (31) and goes up and place on the bearing pedestal (37) of above-mentioned reducer shell (36), the axial line of said clutch shaft bearing (40) is overlapped with the axial line maintenance of positioning core axle (31);
E, lower surface (10) the upper edge pressure head (12) in said pressure head (12) circumferentially are provided with one group of boss (11), press down clutch shaft bearing (40) through the boss (11) on the pressure head (12) clutch shaft bearing (40) and second bearing (38) are pressed in the bearing pedestal (37) of reducer shell (36).
9. pressing method as claimed in claim 8; It is characterized in that: also comprise step F; After clutch shaft bearing (40) and second bearing (38) were pressed in the bearing pedestal (37) of reducer shell (36), the end face that continues to press down bearing pedestal (37) through the boss (11) on the pressure head (12) made clutch shaft bearing (40) and bearing pedestal (37) riveted joint.
10. pressing method as claimed in claim 9; It is characterized in that: also comprise step G; Said positioning core axle (31) set inside has grease passage (35); Said frame (13) outer setting has grease injected system (30); Said grease passage (35) links to each other with said grease injected system (30) through petroleum pipeline (19); Above-mentioned positioning core axle (31) upper edge positioning core axle (31) circumferentially is provided with one group of oil filler point (33); The inner grease passage (35) of said oil filler point (33) and positioning core axle (31) is connected and clutch shaft bearing (40) towards being pressed into bearing pedestal (37) in and the bearing slit (44) between second bearing (38), when the end face that continues to press down bearing pedestal (37) through the boss (11) on the pressure head (12) is riveted clutch shaft bearing (40) and bearing pedestal (37), through injection grease in the bearing slit (44) of oil filler point (33) between clutch shaft bearing (40) and second bearing (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102915990A CN101924428B (en) | 2010-09-26 | 2010-09-26 | Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102915990A CN101924428B (en) | 2010-09-26 | 2010-09-26 | Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101924428A CN101924428A (en) | 2010-12-22 |
| CN101924428B true CN101924428B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102915990A Active CN101924428B (en) | 2010-09-26 | 2010-09-26 | Bearing pressmounting device applied to speed reducer housing and pressmounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101913072B (en) * | 2010-08-17 | 2012-07-04 | 成都华川电装有限责任公司 | Tooling for press mounting of drive cover and bearing, and press mounting process thereof |
| CN104015028B (en) * | 2013-02-28 | 2016-09-07 | 苏州高登威科技股份有限公司 | Pin press-loading device |
| CN105414339B (en) * | 2015-12-08 | 2017-11-24 | 宁波宏协股份有限公司 | Riveting die inside a kind of hydraulic clutch bearing gland |
| CN113857818A (en) * | 2021-12-06 | 2021-12-31 | 苏州托克斯冲压设备有限公司 | Bearing press-fitting equipment |
| CN114871729B (en) * | 2022-04-28 | 2023-03-21 | 中国航天标准化研究所 | Roller bearing installation equipment |
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| CN101224545B (en) * | 2008-02-03 | 2011-12-28 | 大连智云自动化装备股份有限公司 | Self-adapting multi-headed press mounting machine |
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| Title |
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| JP特开2003-97556A 2003.04.03 |
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