CN113026234B - Shaft part lubricating structure, shaft part lubricating system and sewing machine - Google Patents
Shaft part lubricating structure, shaft part lubricating system and sewing machine Download PDFInfo
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- CN113026234B CN113026234B CN202110226563.2A CN202110226563A CN113026234B CN 113026234 B CN113026234 B CN 113026234B CN 202110226563 A CN202110226563 A CN 202110226563A CN 113026234 B CN113026234 B CN 113026234B
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a shaft part lubricating structure, a shaft part lubricating system and a sewing machine, wherein the shaft part lubricating structure comprises a shaft sleeve part provided with a shaft hole, a shaft part, a first oil seal groove and a second oil seal groove which are arranged in the shaft sleeve part, an oil storage groove arranged on the inner wall of the shaft hole, an oil inlet, an oil return port and a plurality of oil grooves arranged between the shaft part and the inner wall of the shaft hole, the plurality of oil grooves at least comprise a first oil return groove and a second oil return groove, only the first oil return groove in the plurality of oil grooves extends to the oil storage groove, only the second oil return groove in the plurality of oil grooves extends to the first oil seal groove, the plurality of oil grooves are not intersected with each other, but the plurality of oil grooves can continuously cover the part of the shaft part positioned between the oil storage groove and the first oil seal groove in the axial direction of the shaft part. This application provides abundant lubrication through multichannel oil groove and first oil return groove between for shaft part and axle sleeve part, carries out the oil return to the fluid of first oil blanket inslot through the second oil return groove, prevents that long-pending oil from appearing in the first oil blanket inslot, avoids oil impregnate, oil leak.
Description
Technical Field
The present invention relates to a shaft member lubricating structure.
The invention also relates to a shaft part lubricating system comprising the shaft part lubricating structure.
The invention further relates to a sewing machine comprising the shaft part lubricating system.
Background
At present, the matching between a shaft and a heel sleeve of a sewing machine in the sewing machine industry is a common mechanism, and the contact surface of the shaft and the heel sleeve needs to be lubricated when the shaft and the heel sleeve flexibly rotate. For example, a sewing machine is provided with a lower shaft, a rotating shuttle for hooking a thread is mounted on an end portion of the lower shaft, the lower shaft is rotatably supported in a lower shaft front sleeve, and the lower shaft front sleeve is fixed to a bed plate of the sewing machine. In order to ensure that the lower shaft can flexibly rotate, a lubricating structure is arranged between the lower shaft and the lower shaft front sleeve, and lubricating oil is supplied into the lower shaft front sleeve by the lubricating structure to provide lubrication between the lower shaft and the lower shaft front sleeve.
Further, in the existing sewing machine, a lubricating structure between the lower shaft and the lower shaft front sleeve is provided in the lower shaft front sleeve. As shown in fig. 1 to 3, a shaft hole 21 for accommodating the lower shaft 10, a first oil seal groove 22 and a second oil seal groove 23 respectively arranged at two ends of the shaft hole 21, an oil storage groove 24 arranged on an inner wall of the shaft hole 21, and an oil inlet 25 and an oil return port 26 both communicated with the oil storage groove 24 are arranged in the lower shaft front sleeve 20, oil seals 30 are arranged in the first oil seal groove 22 and the second oil seal groove 23, the oil seals 30 play an oil-proof role, and the lower shaft 10 is rotatably arranged in the shaft hole 21 of the lower shaft front sleeve 20. In the operation process of the sewing machine, the lower shaft 10 rotates, lubricating oil in an oil pan of the sewing machine enters the oil storage tank 24 from the oil inlet 25 of the lower shaft front sleeve 20, the lubricating oil in the oil storage tank 24 forms an oil film 40 between the lower shaft 10 and the inner wall of the shaft hole 21 for lubrication, as shown in fig. 4, the oil in the oil film 40 continuously runs into the first oil seal groove 22 at the left end of the lower shaft front sleeve 20, and the oil is continuously accumulated in the first oil seal groove 22 to form accumulated oil. The oil leakage and oil leakage occur around the oil seal 30 in the first oil seal groove 22 due to continuous accumulation of time. In addition, since the formation of the oil film 40 may be different at different rotation speeds of the lower shaft 10, the lubrication effect between the lower shaft 10 and the lower shaft front sleeve 20 may be insufficient, and the seizure between the lower shaft 10 and the lower shaft front sleeve 20 may occur.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a shaft member lubricating structure capable of preventing oil accumulation in an oil seal groove and ensuring sufficient lubrication between a shaft member and a sleeve member.
In order to achieve the purpose, the invention provides a shaft part lubricating structure which comprises a shaft sleeve part provided with a shaft hole, a shaft part rotatably supported in the shaft hole, a first oil seal groove and a second oil seal groove which are arranged in the shaft sleeve part and are respectively positioned at two ends of the shaft hole, an oil storage groove arranged on the inner wall of the shaft hole in the shaft sleeve part, and an oil inlet and an oil return opening which are arranged in the shaft sleeve part and are communicated with the oil storage groove; the shaft part lubricating structure also comprises a plurality of oil grooves arranged between the shaft part and the inner wall of the shaft hole, and the plurality of oil grooves are arranged on the outer peripheral surface of the shaft part or on the inner wall of the shaft hole; the multichannel oil groove is located between oil storage tank and the first oil seal groove and/or is located between oil storage tank and the second oil seal groove in the axial of shaft member, has first oil return groove and a second oil return groove at least in the multichannel oil groove, only in the multichannel oil groove the one end of first oil return groove extends to the oil storage tank, only the one end of second oil return groove extends to first oil seal groove or second oil seal groove, and mutually not intersect, but this part of shaft member that the multichannel oil groove can cover in succession in the axial of shaft member is located between oil storage tank and first oil seal groove or second oil seal groove.
Furthermore, the plurality of oil grooves only comprise the first oil return groove and the second oil return groove, and the first oil return groove and the second oil return groove have overlapped sections in the axial direction of the shaft component.
Furthermore, the plurality of oil grooves further comprise at least one middle oil groove positioned between the first oil return groove and the second oil return groove, one end of the middle oil groove and the first oil return groove are provided with a superposition section in the axial direction of the shaft component, and the other end of the middle oil groove and the second oil return groove are provided with a superposition section in the axial direction of the shaft component.
Further, the other end of the first oil return groove is not communicated with the first oil seal groove or the second oil seal groove, and the other end of the second oil return groove is not communicated with the oil storage groove.
Furthermore, the plurality of oil grooves are all spiral grooves; when the plurality of oil grooves are positioned between the oil storage groove and the first oil seal groove, the rotating direction of the spiral groove is opposite to the working rotating direction of the shaft component; when the plurality of oil grooves are positioned between the oil storage groove and the second oil seal groove, the rotating direction of the spiral groove is the same as the working rotating direction of the shaft component.
The present application further provides a shaft component lubrication system, including have go out oil pipe and advance oil pipe the food tray, supply oil pipe, return oil pipe, set up the oil pump on the play oil pipe of food tray and as above shaft component lubrication structure, supply oil union coupling between the oil pipe of food tray and the oil inlet of shaft sleeve part, return oil union coupling between the oil inlet of the oil pipe of food tray and the oil return opening of shaft sleeve part
The present application further provides a sewing machine, wherein the sewing machine is provided with the shaft member lubricating system, the shaft member is a lower shaft of the sewing machine, and the shaft sleeve member is a lower shaft front sleeve of the sewing machine.
As described above, the shaft member lubricating structure, the shaft member lubricating system, and the sewing machine according to the present invention have the following advantageous effects:
in this application, provide abundant lubrication through multichannel oil groove and first oil return groove for between shaft part and the axle sleeve part, especially carry out the oil return through the fluid of second oil return groove in to first oil seal groove and/or second oil seal groove, prevent that long-pending oil from appearing in first oil seal groove and/or the second oil seal groove, avoid the problem of oil impregnate, oil leak from this.
Drawings
Fig. 1 is a schematic structural view of a lubricating structure between a lower shaft and a lower shaft front sleeve in the prior art.
Fig. 2 is a schematic structural view of the lower shaft front sleeve in fig. 1.
Fig. 3 is a cross-sectional view of fig. 2.
Fig. 4 is an operation diagram of a lubricating structure between a lower shaft and a lower shaft front sleeve in the prior art.
Fig. 5 is a schematic structural view of a first embodiment of a shaft member lubricating structure according to the present application.
FIG. 6 is a schematic structural view of the shaft member of FIG. 5.
Fig. 7 is an operation schematic diagram of a first embodiment of a shaft member lubricating structure according to the present application.
Fig. 8 is a schematic structural view of a second shaft member lubricating structure embodiment according to the present application.
Fig. 9 is a schematic view of the construction of the bushing assembly of fig. 8.
Fig. 10 is a schematic structural view of a third embodiment of a shaft member lubricating structure according to the present application.
FIG. 11 is a schematic structural view of the shaft member of FIG. 10.
FIG. 12 is a schematic view of the construction of the shaft component lubrication system of the present application.
Fig. 13 is a schematic view of the structure of the sewing machine of the present application.
Description of the element reference numerals
10 lower shaft
20 lower shaft front sleeve
21 axle hole
22 first oil seal groove
23 second oil seal groove
24 oil storage tank
25 oil inlet
26 oil return port
30 oil seal
40 oil film
50 shaft sleeve component
60 shaft component
70 oil groove
71 first oil return groove
72 second oil return groove
73 overlapping section
74 intermediate oil groove
80 oil pan
81 oil outlet pipe
82 oil inlet pipe
90 oil supply pipe
110 oil return pipe
120 oil pump
130 oil nozzle
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.
The application provides a shaft part lubricating structure, contain this shaft part lubricating structure's shaft part lubricating system and contain this shaft part lubricating system's sewing machine. The following description will be given of preferred embodiments of a shaft member lubricating structure and a shaft member lubricating system. For convenience of description, the axial direction of the shaft member 60 in the shaft member lubricating structure is defined as the left-right direction, the shaft member 60 is the lower shaft in the sewing machine, and the end of the shaft member 60 facing the rotary hook is the left direction.
Embodiment one of lubricating structure of shaft member
As shown in fig. 5 to 7, the embodiment of the shaft member lubricating structure according to the present invention includes a shaft sleeve member 50 extending left and right and provided with a shaft hole 21, a shaft member 60 extending left and right and rotatably supported in the shaft hole 21, first and second oil seal grooves 22 and 23 provided in the shaft sleeve member 50 and respectively located at left and right ends of the shaft hole 21, an oil storage groove 24 provided in an inner wall of the shaft hole 21 in the shaft sleeve member 50, an oil inlet 25 and an oil return 26 provided in the shaft sleeve member 50 and both communicating with the oil storage groove 24, and two oil grooves 70 provided in an outer peripheral surface of the shaft member 60, wherein oil seals 30 for preventing oil are installed in the first and second oil seal grooves 22 and 23. In the radial direction of the shaft member 60, two oil grooves 70 are provided between the shaft member 60 and the inner wall of the shaft hole 21, so that both oil grooves 70 communicate with the shaft hole 21 of the boss member 50. In the axial direction of the shaft member 60, two oil grooves 70 are provided between the oil reservoir 24 and the first oil seal groove 22, i.e., both oil grooves 70 are located on the left side of the oil reservoir 24. Specifically, the two oil grooves 70 are oil return grooves, which are respectively a first oil return groove 71 extending left and right and a second oil return groove 72 extending left and right; the right end of the first oil return groove 71 extends to the oil storage groove 24 rightwards and is communicated with the oil storage groove 24, and the left end of the first oil return groove 71 extends leftwards in the direction close to the first oil seal groove 22 but does not extend to the first oil seal groove 22, namely, the left end of the first oil return groove 71 is positioned on the right side of the first oil seal groove 22 and is not communicated with the oil storage groove; the left end of the second oil return groove 72 extends to the first oil seal groove 22 and is communicated with the first oil seal groove 22, the right end of the second oil return groove 72 extends rightwards in the direction close to the oil storage groove 24 but does not extend to the oil storage groove 24, namely, the right end of the second oil return groove 72 is located on the left side of the oil storage groove 24 and is not communicated with the oil storage groove 24, and the left end of the second oil return groove 72 extends out of the matching area of the shaft hole 21 and the shaft component 60. The starting position and the ending position of the first oil returning groove 71 are different from those of the second oil returning groove 72. The first oil return groove 71 and the second oil return groove 72 are not intersected with each other and not communicated with each other, but the first oil return groove 71 and the second oil return groove 72 have an overlapping section 73 in the axial direction of the shaft member 60, that is, a left section of the first oil return groove 71 and a right section of the second oil return groove 72 are overlapped in the axial direction of the shaft member 60, so that the two oil grooves 70 can continuously cover the part of the shaft member 60 between the oil storage groove 24 and the first oil seal groove 22 in the axial direction of the shaft member 60. In the first embodiment of the shaft member lubricating structure shown in fig. 5, the length of the first oil return groove 71 in the axial direction of the shaft member 60 is L1, the length of the second oil return groove 72 in the axial direction of the shaft member 60 is L2, an overlapping section 73 of the first oil return groove 71 and the second oil return groove 72 is provided between the left end of the first oil return groove 71 and the right end of the second oil return groove 72, and the length of the overlapping section 73 in the axial direction of the shaft member 60 is L3.
When the shaft member 60 rotates during operation, lubricating oil in the oil pan 80 is supplied to the oil storage groove 24 of the shaft sleeve member 50 through the oil inlet 25 on the shaft sleeve member 50, oil in the oil storage groove 24 flows into the first oil return groove 71 communicated with the oil storage groove 24, so that an oil film 40 is formed between the shaft member 60 and the shaft sleeve member 50, meanwhile, the first oil return groove 71 and the second oil return groove 72 have an overlapped section 73 in the axial direction of the shaft member 60, so that the oil film 40 formed with the shaft sleeve member 50 during rotation of the shaft member 60 causes the oil to rapidly flow into the second oil return groove 72, so that the oil also flows into the second oil return groove 72, and the first oil return groove 71 and the second oil return groove 72 can continuously cover the part of the shaft member 60 located between the oil storage groove 24 and the first oil seal groove 22 in the axial direction of the shaft member 60, namely, the first oil return groove 71 and the second oil return groove 72 continuously contact the inner wall of the section of the shaft hole 21 located between the oil storage groove 24 and the first oil seal groove 22, thereby greatly increasing the lubricating amount of oil, ensuring the lubricating effect between the shaft component 60 and the shaft sleeve component 50 and avoiding the phenomenon that the shaft component 60 and the shaft sleeve component 50 are seized due to insufficient lubrication. In the above process, the oil liquid will flow into the first oil seal groove 22 at the left end of the shaft sleeve part 50, and the left end of the second oil return groove 72 is communicated with the first oil seal groove 22, so when the shaft part 60 works, the second oil return groove 72 can suck the oil liquid in the first oil seal groove 22 out to the inside of the shaft sleeve part 50, and the oil liquid flows back to the oil storage groove 24 through the oil film 40 formed between the shaft part 60 and the shaft sleeve part 50 and the first oil return groove 71, thereby playing a role of oil return, effectively preventing the oil accumulation in the first oil seal groove 22, and further avoiding oil leakage and oil seepage. When the shaft member 60 is stationary and not rotating, the oil in the oil reservoir 24 flows into the first oil return groove 71, but since the shaft member 60 is not rotating, no oil film 40 is formed between the shaft member 60 and the sleeve member 50, the oil is stored only in the oil reservoir 24 and the first oil return groove 71, and the oil does not flow into the second oil return groove 72 and the first oil seal groove 22, thereby effectively preventing oil leakage and leakage. Therefore, the present application provides sufficient lubrication between the shaft member 60 and the shaft sleeve member 50 through the plurality of oil grooves 70 and the first oil return groove 71, and particularly returns oil to the oil liquid in the first oil seal groove 22 through the second oil return groove 72, so as to prevent oil accumulation in the first oil seal groove 22, thereby avoiding the problems of oil leakage and oil leakage.
Preferably, the first oil return groove 71 and the second oil return groove 72 are spiral grooves having the same rotation direction, and the rotation direction of the spiral grooves is opposite to the operation rotation direction of the shaft member 60, so that the oil is sufficiently filled between the shaft member 60 and the sleeve member 50 when the shaft member 60 operates and rotates, and the second oil return groove 72 can more effectively suck the oil in the first oil seal groove 22. In the first embodiment of the shaft member lubricating structure, the plurality of oil grooves 70 on the outer periphery of the shaft member 60 have a double-spiral groove structure, so that sufficient lubrication during the operation and rotation of the shaft member 60 and oil return of the oil in the first oil seal groove 22 are realized.
Second embodiment of lubricating structure for shaft member
The shaft member lubricating structure of the first embodiment differs from the shaft member lubricating structure of the second embodiment only in that the first oil return groove 71 and the second oil return groove 72 are arranged differently. Specifically, in the first embodiment of the shaft member lubricating structure, the first oil return groove 71 and the second oil return groove 72 are formed in the outer peripheral surface of the shaft member 60; in the second shaft member lubricating structure embodiment, as shown in fig. 8 and 9, the first oil return groove 71 and the second oil return groove 72 are formed in the inner wall of the shaft hole 21 in the boss member 50.
Third embodiment of lubricating structure for shaft member
The shaft member lubricating structure embodiment differs from the shaft member lubricating structure embodiment one only in that the number of the oil grooves 70 is different. Specifically, in the first shaft member lubricating structure embodiment, the oil groove 70 includes only the first oil return groove 71 and the second oil return groove 72, and the overlapping section 73 is provided between the first oil return groove 71 and the second oil return groove 72; in the third embodiment of the shaft member lubricating structure, as shown in fig. 10 and 11, three oil grooves 70 are provided, the three oil grooves 70 are respectively a first oil return groove 71, a second oil return groove 72 and a middle oil groove 74, the first oil return groove 71, the middle oil groove 74 and the second oil return groove 72 are not crossed and not communicated with each other, the first oil return groove 71 and the second oil return groove 72 are not overlapped, but an overlapping section 73 is provided between the left end of the first oil return groove 71 and the right end of the middle oil groove 74 in the axial direction of the shaft member 60, and an overlapping section 73 is provided between the left end of the middle oil groove 74 and the right end of the second oil return groove 72 in the axial direction of the shaft member 60. The first oil return groove 71, the intermediate oil groove 74 and the second oil return groove 72 are all spiral grooves with the same rotation direction, and the rotation direction of the spiral grooves is opposite to the working rotation direction of the shaft member 60.
In the third embodiment of the shaft member lubricating structure, when the shaft member 60 rotates during operation, the oil in the oil reservoir 24 flows into the first oil return groove 71 communicated with the oil reservoir 24, so that an oil film 40 is formed between the shaft member 60 and the sleeve member 50; meanwhile, the first oil return groove 71, the middle oil groove 74 and the second oil return groove 72 are provided with the overlapped sections 73 in the axial direction of the shaft member 60, so that the oil film 40 formed by the shaft member 60 and the shaft sleeve member 50 in the rotation process of the shaft member 60 enables the oil liquid to rapidly flow into the middle oil groove 74 and the second oil return groove 72, and the shaft member 60 and the shaft sleeve member 50 are fully lubricated. In the above process, the second oil return groove 72 sucks the oil in the first oil seal groove 22 to the inside of the shaft sleeve member 50, and returns the oil to the oil storage groove 24 through the oil film 40, the intermediate oil groove 74 and the first oil return groove 71 formed between the shaft member 60 and the shaft sleeve member 50, so as to prevent oil accumulation in the first oil seal groove 22 and avoid oil leakage and oil seepage. When the shaft member 60 is not rotating at rest, the oil in the oil reservoir 24 flows into the first oil return groove 71, but since the shaft member 60 is not rotating, the oil film 40 is not formed between the shaft member 60 and the sleeve member 50, the oil is stored only in the oil reservoir 24 and the first oil return groove 71, and the oil does not flow into the intermediate oil groove 74, the second oil return groove 72, and the first oil seal groove 22, thereby effectively preventing oil leakage and oil leakage.
Shaft member lubricating structure embodiment four
The shaft member lubricating structure of the fourth embodiment differs from the shaft member lubricating structure of the first embodiment only in that the oil grooves 70 are different in position and rotation direction. Specifically, in the fourth shaft member lubricating structure embodiment, two oil grooves 70 are provided between the oil storage groove 24 and the second oil seal groove 23 in the axial direction of the shaft member 60, that is, both oil grooves 70 are located on the right side of the oil storage groove 24. The two oil grooves 70 are also oil return grooves, namely a first oil return groove 71 extending left and right and a second oil return groove 72 extending left and right; the left end of the first oil return groove 71 extends to the oil storage groove 24 to the left and is communicated with the oil storage groove 24, the right end of the first oil return groove 71 extends to the right in the direction close to the second oil seal groove 23 but does not extend to the second oil seal groove 23, namely, the right end of the first oil return groove 71 is positioned at the left side of the second oil seal groove 23 and is not communicated with the second oil seal groove; the right end of the second oil return groove 72 extends to the second oil seal groove 23 and is communicated with the second oil seal groove 23, the left end of the second oil return groove 72 extends leftwards towards the direction close to the oil storage groove 24 but does not extend to the oil storage groove 24, namely, the left end of the second oil return groove 72 is positioned at the right side of the oil storage groove 24 and is not communicated with the oil storage groove 24, and the right end of the second oil return groove 72 extends out of the matching area of the shaft hole 21 and the shaft component 60. The first oil return groove 71 and the second oil return groove 72 are both spiral grooves having the same direction of rotation, and the spiral grooves have the same direction of rotation as the operating rotation direction of the shaft member 60.
Fifth embodiment of lubricating structure for shaft member
The shaft member lubricating structure embodiment five differs from the shaft member lubricating structure embodiment one only in the number, location and rotational direction of the oil grooves 70. Specifically, in the fifth shaft member lubricating structure embodiment, the left and right sides of the oil reservoir 24 are respectively provided with a first oil return groove 71 extending left and right and a second oil return groove 72 extending left and right in the axial direction of the shaft member 60; wherein, the right end of the first oil return groove 71 positioned at the left side of the oil storage groove 24 extends rightwards to the oil storage groove 24 and is communicated with the oil storage groove 24, the left end of the first oil return groove 71 positioned at the left side of the oil storage groove 24 extends leftwards to the direction close to the first oil seal groove 22 but does not extend to the first oil seal groove 22, the left end of the second oil return groove 72 positioned at the left side of the oil storage groove 24 extends leftwards to the first oil seal groove 22 and is communicated with the first oil seal groove 22, the right end of the second oil return groove 72 positioned at the left side of the oil storage groove 24 extends rightwards to the direction close to the second oil seal groove 23 but does not extend to the oil storage groove 24, the left end of the first oil return groove 71 positioned at the right side of the oil storage groove 24 extends leftwards to the oil storage groove 24 and is communicated with the first oil seal groove 23, the right end of the second oil return groove 72 positioned at the right side of the oil storage groove 24 extends to the second oil seal groove 23, The left end of the second oil return groove 72 located on the right side of the oil reservoir 24 extends leftward in the direction approaching the oil reservoir 24, but does not extend to the oil reservoir 24. Namely: the fifth shaft member lubricating structure embodiment includes two oil grooves 70 in the first shaft member lubricating structure embodiment and two oil grooves 70 in the fourth shaft member lubricating structure embodiment.
The present application further provides a shaft member lubrication system, as shown in fig. 12, which includes an oil pan 80 having an oil outlet pipe 81 and an oil inlet pipe 82, an oil supply pipe 90, an oil return pipe 110, an oil pump 120 disposed on the oil outlet pipe 81 of the oil pan 80, and the above-mentioned shaft member lubrication structure, wherein the oil supply pipe 90 is connected between the oil outlet pipe 81 of the oil pan 80 and the oil inlet 25 of the shaft sleeve member 50, and the oil return pipe 110 is connected between the oil inlet pipe 82 of the oil pan 80 and the oil return port 26 of the shaft sleeve member 50. Preferably, the oil supply pipe 90 is connected to the oil outlet pipe 81 of the oil pan 80, the oil supply pipe 90 is connected to the oil inlet 25 of the sleeve member 50 through the oil nipple 130, and the oil return pipe 110 is connected to the oil inlet pipe 82 of the oil pan 80, and the oil return pipe 110 is connected to the oil return port 26 of the sleeve member 50 through the oil nipple 130. The oil pump 120 is operated, and the oil in the oil pan 80 flows into the oil storage groove 24 of the shaft sleeve part 50 through the oil outlet pipe 81 of the oil pan 80, the oil supply pipe 90 and the oil inlet 25 of the shaft sleeve part 50 to realize lubrication; meanwhile, the oil in the oil storage tank 24 flows into the oil pan 80 through the oil return port 26 of the shaft sleeve part 50 and the oil return pipe 110 to return oil, so that the oil can be recycled.
The present application further provides a sewing machine, as shown in fig. 13, wherein the sewing machine is configured with the above shaft member lubrication system, the shaft member 60 is a lower shaft 10 of the sewing machine, the shaft sleeve member 50 is a lower shaft front cover 20 of the sewing machine, and the lower shaft front cover 20 is fixed in a bed plate of the sewing machine.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The utility model provides an axle part lubricating structure, including axle sleeve part (50) of seting up axle hole (21), rotationally support axle part (60) in axle hole (21), set up in axle sleeve part (50) and be located first oil blanket groove (22) and second oil blanket groove (23) of axle hole (21) both ends department respectively, set up oil storage tank (24) on axle hole (21) inner wall in axle sleeve part (50), and set up in axle sleeve part (50) and all with oil inlet (25) and oil return opening (26) of oil storage tank (24) intercommunication, its characterized in that: the oil-saving device also comprises a plurality of oil grooves (70) arranged between the shaft part (60) and the inner wall of the shaft hole (21), wherein the plurality of oil grooves (70) are formed on the outer peripheral surface of the shaft part (60) or on the inner wall of the shaft hole (21); the multiple oil grooves (70) are located between the oil storage groove (24) and the first oil seal groove (22) and/or between the oil storage groove (24) and the second oil seal groove (23) in the axial direction of the shaft component (60), at least one first oil return groove (71) and one second oil return groove (72) are formed in the multiple oil grooves (70), only one end of the first oil return groove (71) extends to the oil storage groove (24) and only one end of the second oil return groove (72) extends to the first oil seal groove (22) or the second oil seal groove (23) in the multiple oil grooves (70), the multiple oil grooves (70) are not intersected with each other, but the multiple oil grooves (70) can continuously cover the part of the shaft component (60) located between the oil storage groove (24) and the first oil seal groove (22) or the second oil seal groove (23) in the axial direction of the shaft component (60).
2. A shaft member lubricating structure according to claim 1, characterized in that: the multi-channel oil groove (70) only comprises the first oil return groove (71) and the second oil return groove (72), and the first oil return groove (71) and the second oil return groove (72) are provided with an overlapped section (73) in the axial direction of the shaft component (60).
3. The shaft member lubricating structure according to claim 1, characterized in that: the multi-channel oil groove (70) further comprises at least one middle oil groove (74) located between the first oil return groove (71) and the second oil return groove (72), one end of the middle oil groove (74) and the first oil return groove (71) are provided with a superposition section (73) in the axial direction of the shaft component (60), and the other end of the middle oil groove (74) and the second oil return groove (72) are provided with a superposition section (73) in the axial direction of the shaft component (60).
4. The shaft member lubricating structure according to claim 1, characterized in that: the other end of the first oil return groove (71) is not communicated with the first oil seal groove (22) or the second oil seal groove (23), and the other end of the second oil return groove (72) is not communicated with the oil storage groove (24).
5. The shaft member lubricating structure according to any one of claims 1 to 4, characterized in that: the plurality of oil grooves (70) are all spiral grooves; when the plurality of oil grooves (70) are positioned between the oil storage groove (24) and the first oil seal groove (22), the rotation direction of the spiral groove is opposite to the working rotation direction of the shaft component (60); when the plurality of oil grooves (70) are positioned between the oil storage groove (24) and the second oil seal groove (23), the spiral direction of the spiral groove is the same as the working rotation direction of the shaft component (60).
6. A shaft member lubricating system, comprising an oil pan (80) having an oil outlet pipe (81) and an oil inlet pipe (82), an oil supply pipe (90), an oil return pipe (110), and an oil pump (120) provided on the oil outlet pipe (81) of the oil pan (80), characterized in that: further comprising the shaft member lubricating structure according to any one of claims 1 to 4, said oil supply pipe (90) being connected between the oil outlet pipe (81) of the oil pan (80) and the oil inlet (25) of the boss member (50), said oil return pipe (110) being connected between the oil inlet pipe (82) of the oil pan (80) and the oil return port (26) of the boss member (50).
7. A sewing machine characterized by: the sewing machine is provided with the shaft member lubricating system according to claim 6, wherein the shaft member (60) is a lower shaft (10) of the sewing machine, and the sleeve member (50) is a lower shaft front sleeve (20) of the sewing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110226563.2A CN113026234B (en) | 2021-03-01 | 2021-03-01 | Shaft part lubricating structure, shaft part lubricating system and sewing machine |
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| CN202110226563.2A CN113026234B (en) | 2021-03-01 | 2021-03-01 | Shaft part lubricating structure, shaft part lubricating system and sewing machine |
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| CN113026234A CN113026234A (en) | 2021-06-25 |
| CN113026234B true CN113026234B (en) | 2022-07-05 |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB892378A (en) * | 1959-06-24 | 1962-03-28 | Singer Mfg Co | Sewing machine lubrication |
| BE638708A (en) * | 1962-10-25 | |||
| JP2007175150A (en) * | 2005-12-27 | 2007-07-12 | Brother Ind Ltd | Bearing structure of sewing machine |
| CN206843747U (en) * | 2017-04-18 | 2018-01-05 | 浙江耐拓机电科技有限公司 | A kind of lubrication system of sewing-machine rotating shuttle |
| CN111501229A (en) * | 2020-05-28 | 2020-08-07 | 浙江乐江机械有限公司 | Dual-purpose rotating shuttle oil supply device |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Applicant after: Jack Technology Co.,Ltd. Address before: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Applicant before: JACK SEWING MACHINE Co.,Ltd. |
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