CN218989602U - Oil supply lubricating structure of rotating shuttle of sewing machine and sewing machine - Google Patents
Oil supply lubricating structure of rotating shuttle of sewing machine and sewing machine Download PDFInfo
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- CN218989602U CN218989602U CN202223363118.XU CN202223363118U CN218989602U CN 218989602 U CN218989602 U CN 218989602U CN 202223363118 U CN202223363118 U CN 202223363118U CN 218989602 U CN218989602 U CN 218989602U
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- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to sewing machine equipment and discloses an oil supply lubrication structure of a rotating shuttle of a sewing machine and the sewing machine, which comprise a machine base, a shaft sleeve and a rotating shuttle shaft, wherein the shaft sleeve is fixedly arranged in a shaft hole of the machine base, and the rotating shuttle shaft is arranged in the shaft hole of the shaft sleeve; the rotary shuttle shaft is characterized in that an oil inlet hole, an oil return hole and a plunger hole which are communicated with the shaft hole are formed in the circumferential side wall of the shaft sleeve, a threaded hole is formed in the base, an eccentric groove is formed in the circumferential side wall of the rotary shuttle shaft, a spring and a plunger are arranged in the plunger hole, a screw is screwed in the threaded hole, the plunger is pressed on the circumferential surface where the eccentric groove is located through the spring by the screw, and when the rotary shuttle shaft rotates, the plunger is in intermittent contact with the bottom surface of the eccentric groove. The oil supply lubrication structure adopts plunger type oil supply, simultaneously takes the characteristics of oil line oil suction and gear pump oil supply into consideration, and has the characteristics of simple mechanical structure, no noise and continuous and stable oil quantity. In addition, the oil inlet nozzle and the oil outlet nozzle of the structure are arranged on the outer side of the sewing machine base, so that the space on the inner side of the base can be saved, and the installation and maintenance are convenient.
Description
Technical Field
The utility model relates to sewing machine equipment, in particular to an oil supply lubrication structure of a rotating shuttle of a sewing machine and the sewing machine.
Background
The lubricating system is indispensable in the sewing machine, in particular to a sewing machine with a rotary structure, a continuous and stable oil supply system is required to ensure the normal operation of the sewing machine, and excessive oil quantity can pollute clothes and unstable stitch; the small oil quantity can cause the rotating shuttle to heat and cause mechanical abrasion and clamping. The rotating shuttle part of the sewing machine is supplied with various oil, such as oil for absorbing oil by using a oil line, has the advantages of stable oil quantity, small oil quantity adjusting range and inadaptability to the use condition of large oil quantity; the gear pump is used for supplying oil, and has the advantages of continuous and stable oil quantity, large regulating range, relatively complex mechanical structure and certain noise.
Some rotating shuttle shafts are provided with a spiral oil groove, and the rotating shuttle shaft rotates to drive lubricating oil to move spirally on the spiral oil groove, so that the rotating shuttle shaft is lubricated, for example, the application number is: 201720405201.9 is a lubricating structure of a rotating shuttle of a sewing machine.
Disclosure of Invention
The utility model provides an oil supply lubrication structure of a rotating shuttle of a sewing machine and the sewing machine aiming at the defects in the prior art.
In order to solve the technical problems, the utility model is solved by the following technical scheme:
the oil supply lubrication structure of the rotating shuttle of the sewing machine comprises a machine seat, a shaft sleeve and a rotating shuttle shaft, wherein the shaft sleeve is fixedly arranged in a shaft hole of the machine seat, and the rotating shuttle shaft is arranged in the shaft hole of the shaft sleeve; the circumference lateral wall of the shaft sleeve is provided with an oil inlet hole, an oil return hole and a plunger hole which are all communicated with the shaft hole, the machine base is provided with a threaded hole communicated with the plunger hole, the circumference lateral wall of the rotating shuttle shaft is provided with an eccentric groove with the bottom protruding outwards and an arc surface, a spring and a plunger are arranged in the plunger hole, the screw is screwed in the threaded hole, the plunger is tightly pressed on the circumference surface where the eccentric groove is located by the screw through the spring, and when the rotating shuttle shaft rotates, the plunger intermittently contacts with the bottom surface of the eccentric groove. The oil supply lubrication structure adopts plunger type oil supply, simultaneously takes the characteristics of oil line oil suction and gear pump oil supply into consideration, and has the characteristics of simple mechanical structure, no noise and continuous and stable oil quantity.
Preferably, the shaft sleeve is provided with an oil inlet nozzle and an oil return nozzle, the oil inlet nozzle is connected with the oil inlet hole and arranged on the outer side of the machine base, and the oil return nozzle is connected with the oil return hole and arranged on the outer side of the machine base. The oil inlet nozzle and the oil outlet nozzle of the oil supply lubricating structure are arranged on the outer side of the sewing machine base, so that the space on the inner side of the base can be saved, and the installation and the maintenance are convenient.
Preferably, an oil inlet channel and an oil return channel are arranged in the axial direction of the shaft sleeve, the oil inlet hole is communicated with one end of the oil inlet channel, a first plug is sealed at the outer port of the oil inlet channel, and an oil inlet through hole is communicated between the oil inlet channel and the shaft hole; the oil return hole is communicated with one end of the oil return channel, the outer port of the oil return channel is sealed with a second plug, and an oil return through hole is communicated between the oil return channel and the shaft hole. The first plug and the second plug are used for sealing the channels respectively, so that oil is prevented from overflowing from the ports of the channels, and oil inlet and oil outlet are prevented from being influenced.
Preferably, when the rotating shuttle shaft rotates, the oil inlet through hole and the oil outlet through hole can intermittently correspond to the eccentric groove.
Preferably, an oil inlet passing hole and an oil return passing hole which are communicated with the shaft hole are formed in the circumferential side wall of the shaft sleeve, the oil inlet passing hole penetrates through the oil inlet channel, the oil return passing hole penetrates through the oil return channel, a third plug is sealed at the outer port of the oil inlet passing hole, and a fourth plug is sealed at the outer port of the oil return passing hole. The through type oil inlet through hole and the oil return through hole are convenient to process, and the third plug and the fourth plug are used for preventing oil at each position from overflowing from the port and guaranteeing the oil pumping effect of the plunger.
Preferably, a rotating shuttle inner hole is arranged in the axial direction of the rotating shuttle shaft, a rotating shuttle oil hole is arranged on the outer circumferential side wall of the rotating shuttle shaft, one end of the rotating shuttle oil hole is communicated with the rotating shuttle inner hole, and the other end of the rotating shuttle oil hole is communicated with the oil return channel. The lubricating structure not only can lubricate the space between the rotating shuttle shaft and the shaft sleeve, but also can lubricate other parts connected with the rotating shuttle shaft through an oil duct formed by the inner hole of the rotating shuttle and the rotating shuttle oil hole.
Preferably, an oil groove is formed in the inner wall of the shaft hole of the shaft sleeve, a shaft sleeve oil hole penetrating through the oil groove is formed in the outer circumferential side wall of the shaft sleeve, the shaft sleeve oil hole penetrates through the oil return channel, the inner end of the shaft sleeve oil hole is communicated with the oil groove, and a fifth plug is sealed at the outer port of the shaft sleeve oil hole. The oil groove enables oil to smoothly enter the inner hole of the rotating shuttle through the rotating shuttle oil hole, the through shaft sleeve oil hole simplifies the processing technology, and the fifth plug prevents the oil from overflowing from the port of the shaft sleeve oil hole.
A sewing machine comprises an oil supply lubrication structure of a rotating shuttle of the sewing machine.
The utility model has the remarkable technical effects due to the adoption of the technical scheme:
the utility model is characterized in that the oil way of the shaft sleeve is arranged, and the oil inlet and the oil return hole are arranged at the tail end of the shaft sleeve, so that the oil inlet and the oil outlet are adjusted to the front end of the shaft sleeve for saving the use space of the tail end of the shaft sleeve, and the convenience of oil pipe installation and adjustment is greatly improved as the two oil nozzles are arranged at the outer side of the base while the space utilization rate of the base is improved.
Drawings
FIG. 1 is a schematic diagram of an assembly structure of a shaft sleeve and a rotating shuttle shaft according to the present utility model.
Fig. 2 is a schematic view showing a partial structure of the shaft sleeve and the rotary shaft of the present utility model mounted on the housing.
Fig. 3 is a schematic view of the bushing of fig. 1.
Fig. 4 is a schematic view of an exploded construction of a portion of the components of fig. 2.
Fig. 5 is a schematic view of the structure of the rotating shuttle shaft in fig. 1.
Fig. 6 is a schematic view of the structure of fig. 1 at another view angle.
The names of the parts indicated by the numerical reference numerals in the above drawings are as follows:
10-stand, 11-shaft sleeve, 12-rotating shuttle shaft, 13-spring, 14-plunger, 15-screw, 16-oil nozzle, 17-oil return nozzle, 18-first plug, 19-second plug, 20-third plug, 21-fourth plug, 22-fifth plug, 101-threaded hole, 111-shaft hole, 112-oil inlet hole, 113-oil return hole, 114-plunger hole, 115-oil inlet channel, 116-oil return channel, 117-oil inlet oil passing hole, 118-oil return oil passing hole, 119-oil groove, 1110-shaft sleeve oil hole, 121-eccentric groove, 122-rotating shuttle inner hole and 123-rotating shuttle oil hole.
Detailed Description
The utility model is described in further detail below with reference to figures 1-6 and examples.
Example 1
The utility model provides a sewing machine rotating shuttle's oil feed lubricating structure, including frame 10, axle sleeve 11 and rotating shuttle axle 12, axle sleeve 11 fixed mounting is in the shaft hole of frame 10, be equipped with the shaft hole 111 that link up its both ends in the axial of axle sleeve 11, rotating shuttle axle 12 installs in the shaft hole 111 of axle sleeve 11, be equipped with the inlet port 112 that all communicates with shaft hole 111 on the circumference lateral wall of axle sleeve 11, oil return hole 113 and plunger hole 114, oil inlet port 112, oil return hole 113 and plunger hole 114 all communicate with shaft hole 111 vertically, be equipped with the screw hole 101 with plunger hole 114 intercommunication on the frame 10, be equipped with the outside protruding and arc-shaped surface's in bottom eccentric groove 121 on the circumference lateral wall of rotating shuttle axle 12, install spring 13 and plunger 14 in the plunger hole 114, the screw 15 has in the screw hole 101, the screw 15 compresses tightly plunger 14 on the periphery that eccentric groove 121 is located through spring 13, when rotating shuttle axle 12 rotates, plunger 14 and the bottom surface intermittent contact of eccentric groove 121.
The oil inlet nozzle 16 and the oil return nozzle 17 are arranged on the shaft sleeve 11, the oil inlet nozzle 16 and the oil return nozzle 17 are in threaded connection with the shaft sleeve 11, the oil inlet nozzle 16 is connected with the oil inlet hole 112 and arranged on the outer side of the machine base 10, the oil return nozzle 17 is connected with the oil return hole 113 and arranged on the outer side of the machine base 10, the oil inlet hole 112 and the oil return hole 113 are adjusted to the front end of the shaft sleeve 11, and the convenience of oil pipe installation and adjustment is greatly improved due to the fact that the oil inlet nozzle 16 and the oil return nozzle 17 are arranged on the outer side of the machine base 10 while the space utilization rate of the machine base 10 is improved.
An oil inlet channel 115 and an oil return channel 116 are arranged in the axial direction of the shaft sleeve 11, an oil inlet hole 112 is communicated with one end of the oil inlet channel 115, a first plug 18 is sealed at the outer port of the oil inlet channel 115, an oil inlet through hole 117 is communicated between the oil inlet channel 115 and the shaft hole 111, oil flows into the oil inlet channel 115 through the oil inlet hole 112, and then flows into the shaft hole 111 through the oil inlet through hole 117. The oil return hole 113 is communicated with one end of the oil return channel 116, the second plug 19 is sealed at the outer port of the oil return channel 116, an oil return through hole 118 is communicated between the oil return channel 116 and the shaft hole 111, and oil in the shaft hole 111 flows back into the oil return channel 116 through the oil return through hole 118 under the cooperation of the rotating shuttle shaft 12 and the plunger 14.
When the rotating shuttle shaft 12 rotates, the oil inlet through oil hole 117 and the oil outlet through oil hole 118 can intermittently correspond to the eccentric groove 121, so that oil can be conveyed from the oil inlet through oil hole 117 to the oil outlet through oil hole 118 in real time, and the oil in the oil inlet channel 115 and the oil return channel 116 can be circulated.
The circumference side wall of the shaft sleeve 11 is provided with an oil inlet passing hole 117 and an oil return passing hole 118 which are communicated with the shaft hole 111, the oil inlet passing hole 117 penetrates through the oil inlet channel 115, the oil return passing hole 118 penetrates through the oil return channel 116, the outer port of the oil inlet passing hole 117 is sealed with a third plug 20, and the outer port of the oil return passing hole 118 is sealed with a fourth plug 21.
Example 2
Embodiment 2 is basically the same as embodiment 1, except that a rotating shuttle inner hole 122 is provided in the axial direction of the rotating shuttle shaft 12, a rotating shuttle oil hole 123 is provided in the outer circumferential side wall of the rotating shuttle shaft 12, one end of the rotating shuttle oil hole 123 communicates with the rotating shuttle inner hole 122, the other end of the rotating shuttle oil hole 123 communicates with the oil return passage 116, and part of oil in the oil return passage 116 can flow into the rotating shuttle inner hole 122 through the rotating shuttle oil hole 23.
An oil groove 119 is formed in the inner wall of the shaft hole 111 of the shaft sleeve 11, the oil groove 119 is used for collecting oil, oil conveniently flows into the inner hole 122 of the rotating shuttle through the rotating shuttle oil hole 123, a shaft sleeve oil hole 1110 penetrating through the oil groove 119 is formed in the outer circumferential side wall of the shaft sleeve 11, the shaft sleeve oil hole 1110 penetrates through the oil return channel 116, the inner end of the shaft sleeve oil hole 1110 is communicated with the oil groove 119, and a fifth plug 22 is sealed at the outer port of the shaft sleeve oil hole 1110.
When the rotating shuttle shaft 12 rotates at a high speed, the bottom surface of the eccentric groove 121 drives the plunger 14 to reciprocate rapidly, and an air pressure difference is formed inside the shaft sleeve 11, so that lubricating oil is sucked from the oil inlet nozzle 16, reaches the oil inlet channel 115 through the oil inlet hole 112, and enters the eccentric groove 121 of the rotating shuttle shaft 12 through the oil inlet passing hole 117. Since the oil return through hole 118 corresponds to the eccentric groove 121, all of the lubricating oil enters the oil return hole 113 and then enters the oil return passage 116. A portion of the lubricating oil entering the oil return passage 116 enters the oil groove 119 through the boss oil hole 1110 and then enters the inner bore 122 of the rotating shuttle through the rotating shuttle oil hole 123 on the rotating shuttle shaft 12, providing the necessary lubrication for the rotating shuttle. The other part of the lubricating oil entering the oil return passage 116 returns to the oil tank through the oil return hole 113 to form a circulating oil path. In general, an oil quantity switch is additionally arranged at the outer end of the oil return nozzle 17 to control the oil pressure of an oil return pipeline, so that the oil supply size of the rotating shuttle is adjusted.
Example 3
A sewing machine includes the oil supply lubrication structure of the rotating shuttle of the sewing machine in embodiment 1 or 2.
Claims (8)
1. The oil supply lubrication structure of the rotating shuttle of the sewing machine comprises a machine seat (10), a shaft sleeve (11) and a rotating shuttle shaft (12), wherein the shaft sleeve (11) is fixedly arranged in a shaft hole of the machine seat (10), and the rotating shuttle shaft (12) is arranged in a shaft hole (111) of the shaft sleeve (11); the method is characterized in that: be equipped with on the circumference lateral wall of axle sleeve (11) all with inlet port (112), oil return hole (113) and plunger hole (114) of shaft hole (111) intercommunication, be equipped with on frame (10) with screw hole (101) of plunger hole (114) intercommunication, be equipped with on the circumference lateral wall of rotating shuttle axle (12) bottom outwards protruding and be eccentric slot (121) of arcwall face, install spring (13) and plunger (14) in plunger hole (114), screw (15) are had to screw in screw hole (101), screw (15) compress tightly plunger (14) on the periphery at eccentric slot (121) place through spring (13), when rotating shuttle axle (12) rotate, plunger (14) and the bottom surface intermittent type of eccentric slot (121).
2. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 1, wherein: the shaft sleeve (11) is provided with an oil inlet nozzle (16) and an oil return nozzle (17), the oil inlet nozzle (16) is connected with the oil inlet hole (112) and is arranged on the outer side of the machine base (10), and the oil return nozzle (17) is connected with the oil return hole (113) and is arranged on the outer side of the machine base (10).
3. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 1, wherein: an oil inlet channel (115) and an oil return channel (116) are arranged in the axial direction of the shaft sleeve (11), an oil inlet hole (112) is communicated with one end of the oil inlet channel (115), a first plug (18) is sealed at the outer port of the oil inlet channel (115), and an oil inlet through hole (117) is communicated between the oil inlet channel (115) and the shaft hole (111); the oil return hole (113) is communicated with one end of the oil return channel (116), a second plug (19) is sealed at the outer port of the oil return channel (116), and an oil return through hole (118) is communicated between the oil return channel (116) and the shaft hole (111).
4. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 3, wherein: when the rotating shuttle shaft (12) rotates, the oil inlet through hole (117) and the oil outlet through hole (118) can intermittently correspond to the eccentric groove (121).
5. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 3, wherein: an oil inlet passing hole (117) and an oil return passing hole (118) which are communicated to the shaft hole (111) are formed in the circumferential side wall of the shaft sleeve (11), the oil inlet passing hole (117) penetrates through the oil inlet channel (115), the oil return passing hole (118) penetrates through the oil return channel (116), a third plug (20) is sealed at the outer port of the oil inlet passing hole (117), and a fourth plug (21) is sealed at the outer port of the oil return passing hole (118).
6. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 1, wherein: the axial direction of the rotating shuttle shaft (12) is provided with a rotating shuttle inner hole (122), the outer circumferential side wall of the rotating shuttle shaft (12) is provided with a rotating shuttle oil hole (123), one end of the rotating shuttle oil hole (123) is communicated with the rotating shuttle inner hole (122), and the other end of the rotating shuttle oil hole (123) is communicated with the oil return channel (116).
7. The oil supply lubrication structure of a rotating shuttle of a sewing machine according to claim 6, wherein: an oil groove (119) is formed in the inner wall of a shaft hole (111) of the shaft sleeve (11), a shaft sleeve oil hole (1110) penetrating through the oil groove (119) is formed in the outer circumferential side wall of the shaft sleeve (11), the shaft sleeve oil hole (1110) penetrates through the oil return channel (116), the inner end of the shaft sleeve oil hole (1110) is communicated with the oil groove (119), and a fifth plug (22) is sealed at the outer port of the shaft sleeve oil hole (1110).
8. A sewing machine, characterized in that: an oil supply lubrication structure comprising the rotating shuttle of a sewing machine according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223363118.XU CN218989602U (en) | 2022-12-14 | 2022-12-14 | Oil supply lubricating structure of rotating shuttle of sewing machine and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223363118.XU CN218989602U (en) | 2022-12-14 | 2022-12-14 | Oil supply lubricating structure of rotating shuttle of sewing machine and sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN218989602U true CN218989602U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223363118.XU Active CN218989602U (en) | 2022-12-14 | 2022-12-14 | Oil supply lubricating structure of rotating shuttle of sewing machine and sewing machine |
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| Country | Link |
|---|---|
| CN (1) | CN218989602U (en) |
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- 2022-12-14 CN CN202223363118.XU patent/CN218989602U/en active Active
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