CN115234821B - Size-adjustable double-row ball bearing grease injection head - Google Patents
Size-adjustable double-row ball bearing grease injection head Download PDFInfo
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- CN115234821B CN115234821B CN202210892444.5A CN202210892444A CN115234821B CN 115234821 B CN115234821 B CN 115234821B CN 202210892444 A CN202210892444 A CN 202210892444A CN 115234821 B CN115234821 B CN 115234821B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N37/00—Equipment for transferring lubricant from one container to another
- F16N37/003—Equipment for transferring lubricant from one container to another for filling bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N37/00—Equipment for transferring lubricant from one container to another
- F16N2037/006—Filling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a size-adjustable double-row ball bearing grease injection head; the invention comprises an adjusting rod, a bearing positioning device, an adjusting device and a grease injecting pipe; the lower end of the adjusting rod is detachably connected with a bearing positioning device, and the bearing positioning device is matched with the inner hole of the double-row ball bearing to fix the double-row ball bearing; the adjusting device comprises a mounting seat, an upper connecting rod, a lower connecting rod and a grease injection tube seat, and the mounting seat, the upper connecting rod, the grease injection tube seat and the lower connecting rod are connected end to form a parallelogram mechanism; the mounting seat is in threaded connection with the adjusting rod, the grease injection pipe is arranged in the grease injection pipe seat, and the grease injection pipe is driven to move along the radial direction of the adjusting rod through the parallelogram mechanism; the invention realizes the adjustability of the fat injection radius of the fat injection head, avoids adapting to the double-row ball bearings with different sizes by adopting a mode of repeatedly disassembling and replacing the fat injection head, and simultaneously ensures the accurate fat injection of the fat injection head by the arrangement of the fat injection needle and the fat injection needle guard plate, improves the fat injection efficiency and the fat injection quality and reduces the production cost.
Description
Technical Field
The invention belongs to the technical field of bearings, and particularly relates to a size-adjustable double-row ball bearing grease injection head.
Background
As an important mechanical component, a bearing is required to be assembled by injecting grease between an outer ring, an inner ring, and adjacent rolling elements.
At present, when the existing grease injection head faces bearings with different diameters, grease injection is completed by replacing different grease injection heads, repeated disassembly and assembly lead to low grease injection efficiency, and auxiliary time is increased; the double-row ball bearing has a special structure, and rolling bodies are assembled firstly when the double-row ball bearing is assembled, and then the retainer is pressed in from outside to inside between the inner ring and the outer ring. By the structure, most of gaps between the inner ring and the outer ring of the double-row ball bearing are occupied by the retainer, the existing grease injection head is difficult to inject grease, most of grease can be blocked by the retainer and cannot enter between the inner ring raceway and the rolling body for lubrication, and grease injection quality is poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides the fat injection head of the double-row ball bearing with adjustable size, which realizes the adjustability of the fat injection radius of the fat injection head, avoids adapting to the double-row ball bearings with different sizes by adopting a mode of repeatedly disassembling and replacing the fat injection head, and simultaneously ensures the accurate fat injection of the fat injection head by the arrangement of the fat injection needle and the fat injection needle guard plate, improves the fat injection efficiency and the fat injection quality and reduces the production cost.
In order to achieve the above purpose, the invention adopts the following technical scheme: the size-adjustable double-row ball bearing grease injection head comprises an adjusting rod, a bearing positioning device, an adjusting device and a grease injection pipe; the lower end of the adjusting rod is detachably connected with a bearing positioning device, and the bearing positioning device is matched with an inner hole of the double-row ball bearing to fix the double-row ball bearing; the adjusting device comprises a mounting seat, an upper connecting rod, a lower connecting rod and a grease injection tube seat, and the mounting seat, the upper connecting rod, the grease injection tube seat and the lower connecting rod are connected end to form a parallelogram mechanism;
the installation seat is in threaded connection with the adjusting rod, the grease injection pipe is arranged in the grease injection pipe seat, and the grease injection pipe is driven to move along the radial direction of the adjusting rod through the parallelogram mechanism.
In the technical scheme, the adjusting device comprises a parallelogram mechanism formed by hinging a mounting seat, an upper connecting rod, a lower connecting rod and a grease injection tube seat, wherein the lengths of the upper connecting rod and the lower connecting rod are equal, and the distance between two hinging points on the mounting seat is equal to the distance between two hinging points on the grease injection tube seat; the adjustability of the fat injection radius of the fat injection head is realized through the arrangement of the adjusting device, when fat is injected into the double-row ball bearings with different diameters in production, the fat injection head does not need to be replaced, and only the adjusting device is required to be adjusted, so that the fat injection efficiency is improved; in addition, the bearing positioning device is used for positioning the grease injecting head on the inner ring of the injected double-row ball bearing.
Preferably, the adjusting device further comprises a drive nut and a gland;
the driving nut and the gland are in threaded connection with the adjusting rod, and the gland, the mounting seat and the driving nut are sequentially arranged along the axial direction of the adjusting rod from top to bottom.
In this technical scheme, drive nut is located the mount pad below to through the pin joint rotation with the mount pad of control down connecting rod that reciprocates at the adjusting lever, when drive nut moves up, lower connecting rod anticlockwise rotation, go up the connecting rod and also anticlockwise rotation, annotate fat tube seat simultaneously under the drive of upper connecting rod and lower connecting rod, radially move towards the direction of keeping away from the adjusting lever along the adjusting lever, realized annotating fat head annotating fat radius increase, on the contrary, when drive nut moves down, lower connecting rod is clockwise rotatory around the pin joint under the effect of dead weight, realizes annotating fat radius reduction under parallelogram mechanism's effect.
In addition, the gland can move up and down along the adjusting rod to press the upper connecting rod and is locked on the adjusting rod through threads to fix the parallelogram mechanism; the mounting seat can also move up and down to realize the adjustment of the height of the whole adjusting device, so as to compensate the axial displacement generated when the grease injection tube seat moves radially, ensure that the grease outlet is opposite to the roller path, directly inject grease into the roller path, and ensure the reliability of the adjusting device.
Preferably, the mounting seat is of a cylindrical structure with internally provided threaded holes, a plurality of first mounting lugs are arranged at the near upper end of the mounting seat along the outer circumference, and a plurality of second mounting lugs are arranged at the near lower end of the mounting seat along the outer circumference; each first mounting lug is hinged with an upper connecting rod, and each second mounting lug is hinged with a lower connecting rod; the side surface of the near upper end of the grease injection tube seat is provided with a third mounting lug, and the side surface of the near lower end of the grease injection tube seat is provided with a fourth mounting lug; the other end of each upper connecting rod is hinged with the mounting lug in three ways; the other end of each lower connecting rod is hinged with the mounting lug in four, and each grease injection tube seat, the upper connecting rod hinged at the two ends of the grease injection tube seat, the lower connecting rod and the mounting seat form a set of parallelogram mechanism.
Through a plurality of installation ear I of array and installation ear II on the mount pad excircle circumference, realized equipartition a plurality of parallelogram mechanisms on the mount pad to realize simultaneously a plurality of notes fat pipe and annotate fat for the biserial ball bearing raceway, improve notes fat efficiency.
Preferably, the projection of the first mounting lug and the second mounting lug on the horizontal plane in each set of parallelogram mechanism is symmetrical and parallel, the symmetrical plane of the first mounting lug and the second mounting lug passes through the central axis of the mounting seat, and the distance between the projection of the first mounting lug and the projection of the second mounting lug is used for accommodating the sum of the thicknesses of the upper connecting rod, the lower connecting rod and the third mounting lug.
Through setting up installation ear one and installation ear two to this structure, realized that upper connecting rod and lower connecting rod all can rotate to the degree parallel with adjustment lever length direction, and do not interfere each other to realize annotating the minimum size of fat radius of fat head, and annotate the biggest accommodation of fat radius.
Preferably, the bearing positioning device is a stepped shaft, the bearing positioning device sequentially comprises a pressing part, a matching part and a guiding part from top to bottom, the pressing part presses the end surface of the inner ring of the double-row ball bearing, the matching part is matched with the inner hole of the double-row ball bearing, the guiding part is a frustum, and the major diameter of the frustum is equal to the excircle of the matching part; the bearing positioning device is configured with a plurality of bearing positioning devices according to different inner diameter sizes of the double-row ball bearings, and the bearing positioning devices are correspondingly replaced according to different inner diameters of the double-row ball bearings.
Through this technical scheme, realized annotating fat in-process, fixed and the location to biserial ball bearing.
Preferably, the lower end of the fat injection tube is communicated with a fat injection needle, the tube section of the fat injection needle is oblate, and the tube section of the fat injection needle is smaller than that of the fat injection tube.
Through adopting this technical scheme, will annotate the pipe cross-section of fat needle and be oblate, can conveniently get into in annotating the fat clearance between outer lane and the holder in the biserial ball bearing, realized annotating the accurate notes fat of the very little biserial ball bearing of fat gap, both improved annotate fat efficiency and improved annotate fat quality, guaranteed annotating fat pressure simultaneously.
Preferably, an inner hole is arranged in the length direction of the grease injecting tube seat; the fat injection needle and the fat injection tube penetrate through the inner hole of the fat injection tube seat, and the shape of the inner hole of the fat injection tube seat is matched with the shapes of the fat injection needle and the fat injection tube; the grease injecting needle extends out of the lower end of the grease injecting tube seat for a certain length.
By adopting the technical scheme, the transitional position of the fat injection tube and the fat injection needle is arranged in the fat injection needle seat, so that the fat injection tube and the fat injection needle are protected, and the service life of the fat injection head is prolonged; the grease injection needle extends out of the lower end of the grease injection tube seat by a length for entering a grease injection gap between the double-row ball bearing and the retainer.
Preferably, the lower end of the grease injection tube seat is provided with a grease injection needle guard plate, the grease injection needle guard plate comprises a grease injection needle guard plate body, a grease injection needle guard plate inner hole which is matched with a grease injection needle extending out of the grease injection tube seat is arranged in the grease injection needle guard plate body, and two corners of the lower end of the grease injection needle guard plate body are provided with arc notches for positioning rolling bodies.
According to the technical scheme, the protection of the grease injection needle extending out of the grease injection tube seat is realized, meanwhile, when the grease injection needle enters a grease injection gap between the inner ring and the outer ring of the double-row ball bearing and the retainer, the rolling bodies can be pushed away, positioning is realized on the rolling bodies, and the grease injection quality is improved.
Preferably, the lower end of the inner hole of the grease injection needle guard plate is provided with a baffle plate which can be opened and closed, one end of the baffle plate is connected with the grease injection needle guard plate body, and the other three ends of the baffle plate are disconnected with the grease injection needle guard plate body.
In the technical scheme, one end of the baffle is connected with the grease injection needle guard plate body, so that when non-grease injection is realized, the baffle is in a closed state, and in the grease injection process, the baffle pushes the baffle away under the pressure of lubricating grease, so that smooth grease injection is realized; after the grease injection is finished, the baffle automatically rebounds to seal the grease injection port, so that grease in the grease injection needle drops after the grease injection is finished, and grease waste and pollution to other parts of the bearing are avoided.
Preferably, two size-adjustable double-row ball bearing grease injecting heads are arranged and symmetrically arranged at two ends of the double-row ball bearing so as to simultaneously inject grease into double-row raceways of the double-row ball bearing.
By adopting the technical scheme, grease is injected into the double-row ball bearing at two ends simultaneously, and the grease injection efficiency is improved.
In summary, the invention has the following beneficial technical effects:
1. the adjustability of the fat injection radius of the fat injection head is realized through the arrangement of the adjusting device, when fat is injected into the double-row ball bearings with different diameters in production, the fat injection head does not need to be replaced, and only the adjusting device is required to be adjusted, so that the fat injection efficiency is improved; in addition, the bearing positioning device is used for positioning the grease injection head on the inner ring of the injected double-row ball bearing; the grease injection needle and the grease injection needle guard plate are arranged, so that accurate grease injection of the double-row ball bearing with very small grease injection gaps is realized, the grease injection efficiency is improved, and the grease injection quality is improved.
2. The technical scheme that the parallelogram mechanism is formed by hinging the mounting seat, the upper connecting rod, the lower connecting rod and the grease injection tube seat is realized that the grease injection tube seat is driven by the upper connecting rod and the lower connecting rod to move along the radial direction of the adjusting rod, in addition, the gland can move up and down along the adjusting rod to press the upper connecting rod and is locked on the adjusting rod through threads so as to fix the parallelogram mechanism; the mounting seat can also move up and down to realize the adjustment of the height of the whole adjusting device, so as to compensate the axial displacement generated when the grease injection tube seat moves radially, ensure that the grease outlet is opposite to the roller path, and ensure the reliability of the adjusting device.
3. One end of the baffle is connected with the grease injection needle guard plate body, so that the baffle is in a closed state when non-grease injection is realized, and the baffle pushes the baffle away under the pressure of grease in the grease injection process, so that smooth grease injection is realized; after the grease injection is finished, the baffle automatically rebounds to seal the grease injection port, so that grease in the grease injection needle drops after the grease injection is finished, and grease waste and pollution to other parts of the bearing are avoided.
Drawings
FIG. 1 is a schematic view of a size-adjustable double-row ball bearing grease injection head in example 1;
FIG. 2 is a schematic view of one of the parallelogram mechanisms of FIG. 1;
FIG. 3 is a schematic top view of FIG. 2;
FIG. 4 is a schematic view of a size-adjustable double-row ball bearing grease filling head in example 2;
FIG. 5 is a schematic view showing the minimum size of the grease filling head of the double-row ball bearing with adjustable size in example 2;
FIG. 6 is a schematic view of one of the parallelogram mechanisms of FIG. 5;
FIG. 7 is a schematic top view of FIG. 6;
FIG. 8 is a schematic view of a mounting block;
FIG. 9 is a schematic illustration of a lipofilling tube and a lipofilling needle;
FIG. 10 is a front view of a grease filling nozzle;
FIG. 11 is a left side view of the grease filling port;
FIG. 12 isbase:Sub>A cross-sectional view A-A of FIG. 11;
FIG. 13 is an enlarged view of a portion of FIG. 10 at I;
FIG. 14 is a schematic view of a size-adjustable double-row ball bearing grease filling head in example 3.
Reference numerals illustrate: 1-an adjusting rod; 2-bearing positioning means; 201-a pressing part; 202-mating part; 203-a guide;
3-adjusting means; 301-mounting seats; 302-upper link; 303-lower link; 304-a grease filling tube seat; 305-driving a nut; 306-capping; 307-mounting ear one; 308-mounting a second ear; 309-mounting ear three; 310-mounting ear four;
4-a fat injection tube; 5-injecting a fat needle; 6-a grease injection needle guard board; 601-a grease injection needle guard plate body; 602-injecting grease into the inner hole of the guard plate; 603-arc notch; 604-baffle;
7-double row ball bearings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
The embodiment discloses a size-adjustable double-row ball bearing grease injection head, referring to fig. 1 and 2, comprising an adjusting rod 1, a bearing positioning device 2, an adjusting device 3 and a grease injection pipe 4; the lower end of the adjusting rod 1 is detachably connected with a bearing positioning device 2, and the bearing positioning device 2 is matched with the inner hole of the double-row ball bearing 7 to fix the double-row ball bearing 7; the adjusting device 3 comprises a mounting seat 301, an upper connecting rod 302, a lower connecting rod 303 and a grease injection tube seat 304, wherein the mounting seat 301, the upper connecting rod 302, the grease injection tube seat 304 and the lower connecting rod 303 are connected end to form a parallelogram mechanism;
the mounting seat 301 is in threaded connection with the adjusting rod 1, the grease injecting tube 4 is arranged in the grease injecting tube seat 304, and the grease injecting tube 4 is driven to move along the radial direction of the adjusting rod 1 through a parallelogram mechanism.
Referring to fig. 2, the adjustment device 3 further comprises a drive nut 305 and a gland 306; the driving nut 305 and the gland 306 are both in threaded connection with the adjusting rod 1, and the gland 306, the mounting seat 301 and the driving nut 305 are sequentially arranged from top to bottom along the axial direction of the adjusting rod 1.
Referring to fig. 2, 3 and 8, the mounting seat 301 has a cylindrical structure with a threaded hole therein, eight mounting lugs 307 are arranged along the outer circumference at the near upper end of the mounting seat 301, and eight mounting lugs 308 are arranged along the outer circumference at the near lower end of the mounting seat 301; each first mounting lug 307 is hinged with one upper connecting rod 302, and each second mounting lug 308 is hinged with one lower connecting rod 303; the side surface of the near upper end of the grease injection tube seat 304 is provided with a third mounting lug 309, and the side surface of the near lower end of the grease injection tube seat 304 is provided with a fourth mounting lug 310; the other end of each upper connecting rod 302 is hinged with a third mounting lug 309; the other end of each lower connecting rod 303 is hinged with a mounting lug IV 310; each of the grease injecting tube seat 304, the upper connecting rod 302, the lower connecting rod 303 and the mounting seat 301 hinged at two ends of the grease injecting tube seat 304 form a set of parallelogram mechanism.
Referring to fig. 3, the projections of the first mounting ear 307 and the second mounting ear 308 in each set of parallelogram mechanisms are symmetrical and parallel in a horizontal plane, the symmetry plane of the first mounting ear 307 and the second mounting ear 308 passes through the central axis of the mounting base 301, and the distance between the projections of the first mounting ear 307 and the second mounting ear 308 accommodates the sum of the thicknesses of the upper connecting rod 302, the lower connecting rod 303 and the third mounting ear 309.
Referring to fig. 2, the bearing positioning device 2 is a stepped shaft, the bearing positioning device 2 sequentially comprises a pressing part 201, a matching part 202 and a guiding part 203 from top to bottom, the pressing part 201 presses the end face of the inner ring of the double-row ball bearing 7, the matching part 202 is matched with the inner hole of the double-row ball bearing 7, the guiding part 203 is a frustum, and the large diameter of the frustum is equal to the outer circle of the matching part 202; the bearing positioning device 2 is provided with a plurality of bearing positioning devices according to different inner diameter sizes of the double-row ball bearings 7, and is correspondingly replaced according to different inner diameters of the double-row ball bearings 7.
Referring to fig. 2, 3 and 9, the lower end of the fat injection tube 4 is communicated with a fat injection needle 5, the tube section of the fat injection needle 5 is oblate, and the tube section of the fat injection needle 5 is smaller than that of the fat injection tube 4.
Referring to fig. 2 and 3, the grease filling pipe seat 304 is provided with an inner hole in the length direction; the fat injection needle 5 and the fat injection tube 4 penetrate through the inner hole of the fat injection tube seat 304, and the shape of the inner hole of the fat injection tube seat 304 is matched with the shapes of the fat injection needle 5 and the fat injection tube 4; the grease injecting needle 5 extends out of the lower end of the grease injecting tube seat 304 by a certain length.
Example 2
The difference between this embodiment and embodiment 1 is that, referring to fig. 4-7, a grease injection needle guard 6 is provided at the lower end of the grease injection tube seat 304, and referring to fig. 10-12, the grease injection needle guard 6 includes a grease injection needle guard body 601, a grease injection needle guard inner hole 602 adapted to the grease injection needle 5 extending out of the grease injection tube seat 304 is provided in the grease injection needle guard body 601, and circular arc notches 603 for positioning rolling bodies are provided at two corners of the lower end of the grease injection needle guard body 601.
Referring to fig. 13, a baffle 604 capable of opening and closing is provided at the lower end of the inner hole 602 of the needle guard 6, one end of the baffle 604 is connected with the needle guard body 601, and the other three ends are disconnected from the needle guard body 601.
Referring to fig. 4, the size-adjustable double-row ball bearing grease injection head is shown in an open state, the size of the grease injection bearing is larger, and the grease injection head is shown in fig. 5-7, which is a small bearing with the model number 3204, at this time, the upper connecting rod 302 and the lower connecting rod 303 are vertical and parallel to the length direction of the adjusting rod, and the first mounting lug 307 and the second mounting lug 308 are offset and staggered as shown in the figure, so that the maximization of the grease injection radius adjusting range can be realized on the premise that the same size mounting seat is used only when the upper connecting rod 302 and the lower connecting rod 303 are vertical and do not interfere with each other.
Example 3
This embodiment differs from embodiment 2 in that: referring to fig. 14, two size-adjustable grease injecting heads of the double-row ball bearing are arranged and symmetrically arranged at two ends of the double-row ball bearing 7 to simultaneously inject grease into double-row raceways of the double-row ball bearing 7, so that grease injecting efficiency is improved.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above-mentioned embodiments according to the technical substance of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a size adjustable biserial ball bearing annotates fat head which characterized in that: comprises an adjusting rod (1), a bearing positioning device (2), an adjusting device (3) and a grease injecting pipe (4);
the lower end of the adjusting rod (1) is detachably connected with the bearing positioning device (2), and the bearing positioning device (2) is matched with an inner hole of the double-row ball bearing (7) to fix the double-row ball bearing (7);
the adjusting device (3) comprises a mounting seat (301), an upper connecting rod (302), a lower connecting rod (303) and a grease injection tube seat (304), wherein the mounting seat (301), the upper connecting rod (302), the grease injection tube seat (304) and the lower connecting rod (303) are connected in an end-to-end hinged mode to form a parallelogram mechanism; the mounting seat (301) is of a cylindrical structure with internally provided threaded holes, a plurality of first mounting lugs (307) are arranged at the near upper end of the mounting seat (301) along the outer circumference, and a plurality of second mounting lugs (308) are arranged at the near lower end of the mounting seat (301) along the outer circumference; each first mounting lug (307) is hinged with one upper connecting rod (302), and each second mounting lug (308) is hinged with one lower connecting rod (303); a mounting lug III (309) is arranged on the side surface of the near upper end of the fat injection tube seat (304), and a mounting lug IV (310) is arranged on the side surface of the near lower end of the fat injection tube seat (304); the other end of each upper connecting rod (302) is hinged with a mounting ear III (309); the other end of each lower connecting rod (303) is hinged with a mounting lug IV (310); each grease injecting tube seat (304), an upper connecting rod (302), a lower connecting rod (303) and a mounting seat (301) hinged at two ends of each grease injecting tube seat (304) form a set of parallelogram mechanism; the projection of the first mounting lug (307) and the second mounting lug (308) in each parallelogram mechanism on the horizontal plane is symmetrical and parallel, the symmetrical surfaces of the first mounting lug (307) and the second mounting lug (308) pass through the central axis of the mounting seat (301), and the distance between the projections of the first mounting lug (307) and the second mounting lug (308) is used for accommodating the sum of the thicknesses of the upper connecting rod (302), the lower connecting rod (303) and the third mounting lug (309);
the mounting seat (301) is in threaded connection with the adjusting rod (1), the grease injection pipe (4) is arranged in the grease injection pipe seat (304), the grease injection pipe (4) is driven to move along the radial direction of the adjusting rod (1) through the parallelogram mechanism, and a grease injection needle guard board (6) is arranged at the lower end of the grease injection pipe seat (304).
2. The size adjustable double row ball bearing grease filling head according to claim 1, wherein: the adjusting device (3) further comprises a drive nut (305) and a gland (306);
the driving nut (305) and the gland (306) are in threaded connection with the adjusting rod (1), and the gland (306), the mounting seat (301) and the driving nut (305) are sequentially arranged along the axial direction of the adjusting rod (1) from top to bottom.
3. The size adjustable double row ball bearing grease filling head according to claim 1, wherein: the bearing positioning device (2) is a stepped shaft, the bearing positioning device (2) sequentially comprises a pressing part (201), a matching part (202) and a guiding part (203) from top to bottom, the pressing part (201) presses the end face of the inner ring of the double-row ball bearing (7), the matching part (202) is matched with the inner hole of the double-row ball bearing (7), the guiding part (203) is a frustum, and the large diameter of the guiding part (203) is equal to the outer circle of the matching part (202);
the bearing positioning device (2) is provided with a plurality of bearing positioning devices according to different inner diameter sizes of the double-row ball bearings (7), and the bearing positioning devices are correspondingly replaced according to different inner diameters of the double-row ball bearings (7).
4. The size adjustable double row ball bearing grease filling head according to claim 1, wherein: the lower end of the fat injection pipe (4) is communicated with a fat injection needle (5), the pipe section of the fat injection needle (5) is oblate, and the pipe section of the fat injection needle (5) is smaller than that of the fat injection pipe (4).
5. The size adjustable double row ball bearing grease filling head according to claim 4, wherein: an inner hole is formed in the length direction of the grease injection tube seat (304); the fat injection needle (5) and the fat injection tube (4) penetrate through the inner hole of the fat injection tube seat (304), and the shape of the inner hole of the fat injection tube seat (304) is matched with the shapes of the fat injection needle (5) and the fat injection tube (4); the grease injecting needle (5) extends out of the lower end of the grease injecting tube seat (304) for a certain length.
6. The size adjustable double row ball bearing grease filling head according to claim 5, wherein: the grease injection needle guard board (6) comprises a grease injection needle guard board body (601), a grease injection needle guard board inner hole (602) matched with the grease injection needle (5) is arranged in the grease injection needle guard board body (601), and arc gaps (603) for positioning rolling bodies are formed in two corners of the lower end of the grease injection needle guard board body (601).
7. The size adjustable double row ball bearing grease filling head as defined in claim 6, wherein: the lower extreme of annotating fat needle backplate hole (602) is provided with baffle (604) that can open and shut, baffle (604) one end links to each other with annotate fat needle backplate body (601), and the other three end breaks away with annotate fat needle backplate body (601), annotate the material of fat needle backplate body (601) and be plastics.
8. A size adjustable double row ball bearing grease injecting head according to any one of claims 1-7, wherein: two size-adjustable double-row ball bearing grease injection heads are arranged and symmetrically arranged at two ends of the double-row ball bearing (7) so as to simultaneously inject grease into double-row raceways of the double-row ball bearing (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210892444.5A CN115234821B (en) | 2022-07-27 | 2022-07-27 | Size-adjustable double-row ball bearing grease injection head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210892444.5A CN115234821B (en) | 2022-07-27 | 2022-07-27 | Size-adjustable double-row ball bearing grease injection head |
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| CN115234821A CN115234821A (en) | 2022-10-25 |
| CN115234821B true CN115234821B (en) | 2023-04-25 |
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| CN210831377U (en) * | 2019-09-24 | 2020-06-23 | 长春一汽四环变速箱汽车零件有限责任公司 | Truck hub bearing up-down simultaneous grease injection tool |
| CN112228755A (en) * | 2020-10-19 | 2021-01-15 | 项红梅 | Universal bearing grease injector structure |
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| JP6256271B2 (en) * | 2014-09-12 | 2018-01-10 | 日本精工株式会社 | Ball arrangement method and ball arrangement apparatus for ball bearing |
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| CN105570652A (en) * | 2014-10-16 | 2016-05-11 | 常宇菲 | Multi-pipeline type bearing grease injecting device |
| CN104728583A (en) * | 2015-01-22 | 2015-06-24 | 河南科技大学 | Locating device and method for grease injection of bearing grease injection machine |
| CN210831377U (en) * | 2019-09-24 | 2020-06-23 | 长春一汽四环变速箱汽车零件有限责任公司 | Truck hub bearing up-down simultaneous grease injection tool |
| CN112228755A (en) * | 2020-10-19 | 2021-01-15 | 项红梅 | Universal bearing grease injector structure |
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