CN209892733U - Gear lubricating structure of pneumatic angle grinder - Google Patents
Gear lubricating structure of pneumatic angle grinder Download PDFInfo
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- CN209892733U CN209892733U CN201920716294.6U CN201920716294U CN209892733U CN 209892733 U CN209892733 U CN 209892733U CN 201920716294 U CN201920716294 U CN 201920716294U CN 209892733 U CN209892733 U CN 209892733U
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Abstract
A gear lubricating structure of a pneumatic angle grinder comprises a gun body, an air inlet joint arranged at the left end of the gun body and a trigger arranged on the gun body, wherein a driving space is arranged in the gun body, a rotor matched with the driving space is arranged in the driving space, and a driving bevel gear is arranged at the right end of the rotor; the upper surface of the right end of the gun body is provided with a mounting hole communicated with the driving space; a transmission shaft is arranged in the mounting hole; the upper part of the transmission shaft and the lower part of the transmission shaft are connected with the mounting holes through bearings; the upper end of the transmission shaft is connected with a chuck positioned outside the gun body; a driven helical gear meshed with the driving helical gear is fixed outside the transmission shaft; and the oil absorption cotton is sleeved outside the part of the transmission shaft opposite to the rotor. The utility model discloses a gear lubrication structure of pneumatic angle mill can make lubricating grease obtain the at utmost utilization, can not appear by the extravagant condition, and can forget the condition of adding lubricating grease, realizes lubricated effect automatically.
Description
Technical Field
The utility model relates to a gear lubricating structure, especially a gear lubricating structure of pneumatic angle mill.
Background
The pneumatic angle grinder is a pneumatic tool and is a grinding tool mainly used for cutting and grinding, when the pneumatic angle grinder runs, a rotor inside the pneumatic angle grinder can rotate, so as to drive a gear set inside the pneumatic angle grinder to rotate, and finally realize the rotation of a chuck of the pneumatic angle grinder, and the chuck can drive a grinding wheel arranged on the chuck to rotate, so as to carry out cutting or grinding work, in the actual use process of the pneumatic angle grinder, gears of the gear set can continuously rub to cause mutual abrasion, in order to avoid the problem, the traditional pneumatic angle grinder is provided with a press-fit type oil injection cup directly communicated with the position of the gear set, the press-fit type oil injection cup can lubricate the gear set once lubricating grease is injected, the abrasion between the gears can be effectively reduced within a period of time, but the interval of each lubricating time is extremely short due to the lubricating mode, the gear lubricating device is very troublesome, workers need to remember the lubricating time all the time, and once the lubricating time is missed, the gears are easily abraded to cause the gear damage, and meanwhile, in the actual lubricating process, a large amount of lubricating grease is thrown away in the gear rotating process to cause the waste of the lubricating grease.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a gear lubrication structure of pneumatic angle mill, it can make lubricating grease obtain maximum utilization, can not appear by the extravagant condition, and can forget the condition of adding lubricating grease, realizes lubricated effect automatically.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a gear lubricating structure of pneumatic angle mill, including the rifle body, locate the air inlet joint of rifle body left end and locate the trigger on the rifle body, the internal drive space that is equipped with of rifle is equipped with rather than assorted rotor, its characterized in that in the drive space: the right end of the rotor is provided with a driving bevel gear; the upper surface of the right end of the gun body is provided with a mounting hole communicated with the driving space; a transmission shaft is arranged in the mounting hole; the upper part of the transmission shaft and the lower part of the transmission shaft are connected with the mounting holes through bearings; the upper end of the transmission shaft is connected with a chuck positioned outside the gun body; a driven helical gear meshed with the driving helical gear is fixed outside the transmission shaft; the oil absorption cotton is sleeved outside the part of the transmission shaft opposite to the rotor and can move up and down along the transmission shaft; the outer wall of the left side of the oil absorption cotton is attached to the end face of the right end of the rotor; the oil absorption cotton is positioned between the driven helical gear and the bearing arranged at the lower part of the transmission shaft, and the thickness of the oil absorption cotton is smaller than the distance between the driven helical gear and the bearing arranged at the lower part of the transmission shaft; the gun body is provided with a press-fit oil filling cup corresponding to the driving bevel gear.
An internal thread is arranged on the inner wall of the orifice at the upper end of the mounting hole; a fixed screw sleeve is screwed in an orifice at the upper end of the mounting hole through internal threads; the inner wall of the upper part of the mounting hole is provided with an annular step, a bearing arranged on the upper part of the transmission shaft is clamped on the annular step, and the fixed screw sleeve is tightly pressed on the bearing arranged on the upper part of the transmission shaft.
The thickness of the oil absorption cotton is two thirds of the distance between the driven helical gear and the bearing arranged at the lower part of the transmission shaft.
The utility model has the advantages that:
compared with the prior art, adopt the utility model discloses the cotton absorption of gear lubrication structure accessible oil absorption of the pneumatic angle mill of structure is thrown away extravagant lubricating grease by initiative helical gear and driven helical gear, effectively avoid the resource to be wasted, guarantee that lubricating grease can the sufficient reason, then will originally store on the lubricating grease in inside feeds back initiative helical gear and driven helical gear through self and initiative helical gear and driven helical gear's contact, even the staff does not in time pour into lubricating grease into through press-fit oiling cup, the cotton also can be automatic to initiative helical gear and driven helical gear lubricated work, realize self-lubricate's effect, effectively avoid initiative helical gear and driven helical gear not in time obtain lubricated condition that leads to wearing and tearing.
Drawings
FIG. 1 is a schematic structural view of a gear lubrication structure of the pneumatic angle grinder of the present invention;
fig. 2 is a partial schematic structural view of the gear lubrication structure of the pneumatic angle grinder of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 and 2, the present invention provides a gear lubrication structure of a pneumatic angle grinder, including a gun body 1, an air inlet joint 2 disposed at the left end of the gun body 1, and a trigger 3 disposed on the gun body 1, wherein a driving space 4 is disposed in the gun body 1, a rotor 5 matched with the driving space 4 is disposed in the driving space 4, and a driving bevel gear 6 is disposed at the right end of the rotor 5; the upper surface of the right end of the gun body 1 is provided with a mounting hole 7 communicated with the driving space 4; a transmission shaft 8 is arranged in the mounting hole 7; the upper part of the transmission shaft 8 and the lower part of the transmission shaft 8 are connected with the mounting hole 7 through a bearing 9; the upper end of the transmission shaft 8 is connected with a chuck 10 positioned outside the gun body 1; a driven bevel gear 11 meshed with the driving bevel gear 6 is fixed outside the transmission shaft 8; the oil absorption cotton 12 is sleeved outside the part of the transmission shaft 8 opposite to the rotor 5, and the oil absorption cotton 12 can move up and down along the transmission shaft 8; the outer wall of the left side of the oil absorption cotton 12 is attached to the end face of the right end of the rotor 5; the oil absorption cotton 12 is positioned between the driven helical gear 11 and the bearing 9 arranged at the lower part of the transmission shaft 8, and the thickness of the oil absorption cotton 12 is smaller than the distance between the driven helical gear 11 and the bearing 9 arranged at the lower part of the transmission shaft 8; the gun body 1 is provided with a press-fit oil filling cup 13 corresponding to the driving bevel gear 6.
An inner thread 14 is arranged on the inner wall of the orifice at the upper end of the mounting hole 7; a fixed screw sleeve 15 is screwed in the upper end orifice of the mounting hole 7 through an internal thread 14; the inner wall of the upper part of the mounting hole 7 is provided with an annular step 16, a bearing 9 arranged on the upper part of the transmission shaft 8 is clamped on the annular step 16, and a fixed screw sleeve 15 is tightly pressed on the bearing 9 arranged on the upper part of the transmission shaft 8.
The thickness of the oil absorption cotton 12 is two thirds of the distance between the driven bevel gear 11 and the bearing 9 arranged at the lower part of the transmission shaft 8.
The utility model discloses a use method as follows:
before using the pneumatic angle grinder, a worker can firstly install a grinding wheel on a chuck 10, then connect an air source with an air inlet connector 2 through a hose, then inject lubricating grease into the position of a driving bevel gear 6 through a press-fit type oil filling cup 13, then start the pneumatic angle grinder through a trigger 3, at the moment, high-pressure air is injected into a gun body 1 through the air inlet connector 2, under the action of the high-pressure air, a rotor 5 can rotate, the driving bevel gear 6 is arranged at the right end of the rotor 5, the driving bevel gear 6 can rotate along with the driving bevel gear 6, when the driving bevel gear 6 rotates, a driven bevel gear 11 meshed with the driving bevel gear rotates along with the driving bevel gear, at the moment, gear teeth of the driven bevel gear 11 can fully contact with tooth grooves of the driving bevel gear 6, the lubricating grease originally injected on the driving bevel gear 6 can be transferred to the driven bevel gear 11, along with the rotation of the, grease is finally spread on the surfaces of the driving helical gear 6 and the driven helical gear 11, so that the lubricating effect is ensured to the maximum extent, and the friction force generated when the driving helical gear 6 is meshed with the driven helical gear 11 is reduced to the maximum extent under the action of the grease.
When the driving helical gear 6 or the driven helical gear 11 rotates, centrifugal force is generated, lubricating grease is thrown outwards by the centrifugal force, the oil absorption cotton is just positioned at the right side of the driving helical gear 6 and the lower side of the driven helical gear 11, the thrown lubricating grease is just thrown onto the oil absorption cotton 12, the oil absorption cotton 12 absorbs the lubricating grease and is stored in the oil absorption cotton, the outer wall of the left side of the oil absorption cotton 12 is attached to the end face of the right end of the rotor 5, when the rotor 5 drives the driving helical gear 6 to rotate, the driving helical gear 6 presses the outer wall of the oil absorption cotton 12, the lubricating grease in the oil absorption cotton 12 is extruded and is adhered to the self body, the effect of automatically adding the lubricating grease is realized, when the driving helical gear 6 or the driven helical gear 11 contacts the oil absorption cotton 12, the self rotating force needs to roll and pull the oil absorption cotton 12, the oil absorption cotton 12 can convert the rotating force into a force for moving up and down, and the rotating force of the driving bevel gear 6 or the driven bevel gear 11 is buffered by moving up and down along the track of the transmission shaft 8.
When the driven bevel gear 11 is driven to rotate by the driving bevel gear 6, the driven bevel gear 11 can drive the transmission shaft 8 fixed with the driven bevel gear to rotate, and the chuck 10 can drive the grinding wheel to rotate at the moment, so that the cutting and polishing effects are realized.
To sum up, can know, the utility model discloses the cotton 12 absorption of accessible oil absorption is thrown away extravagant lubricating grease by initiative helical gear 6 and driven helical gear 11, effectively avoid the resource to be wasted, guarantee that lubricating grease can the sufficient reason, then will originally store on the lubricating grease in inside feeds back initiative helical gear 6 and driven helical gear 11 through self and initiative helical gear 6 and driven helical gear 11's contact, even the staff does not in time pour into lubricating grease into through pressure-fit oiling cup 13, the cotton 12 also can be automatic to initiative helical gear 6 and driven helical gear 11 work of lubricating, realize self-lubricate's effect, effectively avoid initiative helical gear 6 and driven helical gear 11 not in time to obtain the lubricated condition that leads to wearing and tearing.
7 upper end drill way inner walls of mounting hole 7 are equipped with internal thread 14, 7 upper end drill ways of mounting hole have fixed screw sleeve 15 through internal thread 14 spiro union, 7 upper portion inner walls of mounting hole are equipped with annular step 16, locate the bearing 9 card on 8 upper portions of transmission shaft on annular step 16, fixed screw sleeve 15 sticiss on locating the bearing 9 on 8 upper portions of transmission shaft, the existence of fixed screw sleeve 15 can be through the stability when guaranteeing transmission shaft 8 operation to compressing tightly of bearing 9, effectively avoid transmission shaft 8 to heels and lead to the dead condition of card to appear in the meshing between driven helical gear 11 and the initiative helical gear 6.
The thickness of the oil absorption cotton 12 is two thirds of the distance between the driven helical gear 11 and the bearing 9 arranged at the lower part of the transmission shaft 8, the automatic lubrication effect of the oil absorption cotton 12 is best, and the lubricating grease can be supplemented to the driving helical gear 6 and the driven helical gear 11 in time while the rotating force of the driving helical gear 6 and the driven helical gear 11 is sufficiently buffered.
Claims (3)
1. The utility model provides a gear lubricating structure of pneumatic angle mill, includes the rifle body, locates the air inlet joint of rifle body left end and locates the trigger on the rifle body, the internal drive space that is equipped with of rifle, be equipped with in the drive space rather than assorted rotor, its characterized in that: the right end of the rotor is provided with a driving bevel gear; the upper surface of the right end of the gun body is provided with a mounting hole communicated with the driving space; a transmission shaft is arranged in the mounting hole; the upper part of the transmission shaft and the lower part of the transmission shaft are connected with the mounting holes through bearings; the upper end of the transmission shaft is connected with a chuck positioned outside the gun body; a driven helical gear meshed with the driving helical gear is fixed outside the transmission shaft; the oil absorption cotton is sleeved outside the part of the transmission shaft opposite to the rotor and can move up and down along the transmission shaft; the outer wall of the left side of the oil absorption cotton is attached to the end face of the right end of the rotor; the oil absorption cotton is positioned between the driven helical gear and the bearing arranged at the lower part of the transmission shaft, and the thickness of the oil absorption cotton is smaller than the distance between the driven helical gear and the bearing arranged at the lower part of the transmission shaft; the gun body is provided with a press-fit oil filling cup corresponding to the driving bevel gear.
2. The gear lubricating structure of an air-powered angle grinder as set forth in claim 1, wherein: an internal thread is arranged on the inner wall of the orifice at the upper end of the mounting hole; a fixed screw sleeve is screwed in an orifice at the upper end of the mounting hole through internal threads; the inner wall of the upper part of the mounting hole is provided with an annular step, a bearing arranged on the upper part of the transmission shaft is clamped on the annular step, and the fixed screw sleeve is tightly pressed on the bearing arranged on the upper part of the transmission shaft.
3. The gear lubricating structure of an air-powered angle grinder as set forth in claim 1, wherein: the thickness of the oil absorption cotton is two thirds of the distance between the driven helical gear and the bearing arranged at the lower part of the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716294.6U CN209892733U (en) | 2019-05-20 | 2019-05-20 | Gear lubricating structure of pneumatic angle grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716294.6U CN209892733U (en) | 2019-05-20 | 2019-05-20 | Gear lubricating structure of pneumatic angle grinder |
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| Publication Number | Publication Date |
|---|---|
| CN209892733U true CN209892733U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920716294.6U Active CN209892733U (en) | 2019-05-20 | 2019-05-20 | Gear lubricating structure of pneumatic angle grinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442040A (en) * | 2021-06-30 | 2021-09-28 | 燕山大学 | One-way valve stopped pneumatic cutting assembly |
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2019
- 2019-05-20 CN CN201920716294.6U patent/CN209892733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113442040A (en) * | 2021-06-30 | 2021-09-28 | 燕山大学 | One-way valve stopped pneumatic cutting assembly |
| CN113442040B (en) * | 2021-06-30 | 2022-06-03 | 燕山大学 | Pneumatic cutting assembly stopped by one-way valve |
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