CN217713550U - Lubricating gear and gear rack transmission structure - Google Patents
Lubricating gear and gear rack transmission structure Download PDFInfo
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- CN217713550U CN217713550U CN202221134333.XU CN202221134333U CN217713550U CN 217713550 U CN217713550 U CN 217713550U CN 202221134333 U CN202221134333 U CN 202221134333U CN 217713550 U CN217713550 U CN 217713550U
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Abstract
The utility model discloses a lubricated gear and rack and pinion transmission structure, this lubricated gear include wheel body and lubricated transmission shaft, and mounting hole and oil delivery hole have been seted up to the wheel body, and the mounting hole sets up with the wheel body is coaxial, and the one end and the mounting hole intercommunication of oil delivery hole, the tooth's socket surface at the wheel body are seted up to the other end. One end of the lubricating transmission shaft extends into the mounting hole and is rotationally connected with the mounting hole, and an oil conveying channel and a communicating channel are formed in the lubricating transmission shaft; the oil conveying channel comprises an oil inlet which is arranged on the outer surface of the lubricating transmission shaft, is positioned outside the mounting hole and is used for being communicated with the oil supply device; one end of the communicating channel is communicated with the oil conveying channel, and the other end of the communicating channel is arranged on the peripheral surface of the lubricating transmission shaft and is communicated with the oil conveying hole. The lubricating gear can realize self-lubrication of a rack and pinion transmission structure, is simple in structure, can select lubricating grease from lubricating grease, and can improve the lubricating effect in a high-humidity environment.
Description
Technical Field
The utility model belongs to the technical field of transmission structure, especially about a lubricated gear and rack and pinion transmission structure.
Background
When the gear and the rack are used for transmission, if effective lubrication is not carried out, direct contact between metals is caused to continuously generate heat through friction, damage to the gear and the rack is caused, and the service life of the gear and the rack can be shortened. It is therefore necessary to lubricate the rack and pinion.
The following lubrication methods are currently commonly used: firstly, spray type lubrication adopts the principle that compressed air is utilized to change a lubricant into a mist shape through a nozzle, and has the defects of relatively complex structural form and relatively high cost; secondly, manual smearing type lubrication is adopted, the method is easy to cause uneven smearing phenomenon, and the labor cost is high; and thirdly, the felt gear is lubricated, so that the bristles on the surface of the gear are shortened due to long-time work, the felt gear cannot be effectively contacted with the rack, and the lubricating effect is greatly reduced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lubricated gear, it can improve the lubricated effect to rack and pinion, and simple structure.
Another object of the utility model is to provide a rack and pinion transmission structure, it can realize the self-lubricating, applicable in high wet environment.
In order to achieve the above object, in a first aspect, the utility model provides a lubricating gear, this lubricating gear include wheel body and lubricated transmission shaft, and mounting hole and oil transmission hole have been seted up to the wheel body, the mounting hole with the coaxial setting of wheel body, the one end of oil transmission hole with the mounting hole intercommunication, the other end is seted up the tooth's socket surface of wheel body. One end of the lubricating transmission shaft extends into the mounting hole and is rotationally connected with the mounting hole, and an oil conveying channel and a communicating channel are formed in the lubricating transmission shaft; the oil conveying channel comprises an oil inlet, and the oil inlet is formed in the outer surface of the lubricating transmission shaft, is positioned outside the mounting hole and is used for being communicated with an oil supply device; one end of the communicating channel is communicated with the oil conveying channel, and the other end of the communicating channel is arranged on the peripheral surface of the lubricating transmission shaft and is communicated with the oil conveying hole.
The utility model discloses an in an embodiment, lubricated gear still includes first end cover, first end cover fixed mounting be in on the terminal surface of one side of wheel body, the external diameter of second end cover is greater than wheel body root circle diameter.
The utility model discloses an in the embodiment, lubricated gear still includes the second end cover, second end cover fixed mounting be in on the terminal surface of the opposite side of wheel body, the external diameter of second end cover is greater than wheel body root circle diameter.
The utility model discloses an in one embodiment, annular first oil transmission groove has been seted up to the internal surface of mounting hole, first oil transmission groove with the surface cooperation of lubricated transmission shaft forms first oil transmission chamber, first oil transmission chamber communicate in the oil transmission hole with communicate the passageway.
The utility model discloses an among the embodiment, lubricated gear still includes first sealing washer and second sealing washer, first sealing washer with the second sealing washer sets up the surface of lubricated transmission shaft with between the internal surface of mounting hole, first sealing washer with the second sealing washer is located respectively the axial both sides of first oil conveying chamber.
The utility model discloses an in an embodiment, annular second oil transmission groove has been seted up to lubricated transmission shaft's surface, second oil transmission groove with the interior surface fit of mounting hole forms second oil transmission chamber, second oil transmission chamber communicate in the oil transmission hole with communicate the passageway.
The utility model discloses an in the embodiment, the quantity of oil transfer hole is a plurality of, and is a plurality of the oil transfer hole centers on the axle center setting of wheel body.
The utility model discloses an in the embodiment, the quantity of intercommunication passageway is a plurality of, and a plurality of intercommunication passageways center on the axle center setting of lubricated transmission shaft.
In a second aspect, the present application further provides a rack and pinion transmission structure, which includes a transmission gear, a rack, and the lubricating gear described in any embodiment of the first aspect, wherein the transmission gear and the lubricating gear are respectively engaged with the rack.
The utility model discloses an in an embodiment, rack and pinion drive structure still includes the frame, the frame respectively with lubricated gear's lubricated transmission shaft and drive gear's transmission shaft fixed connection.
The utility model discloses an in an embodiment, rack and pinion drive structure still includes the driving piece, the driving piece with drive gear's transmission shaft is connected, is used for the drive gear follows the rack rotates.
Compared with the prior art, according to the utility model discloses a lubricated gear and rack toothing lubricates the rack to other drive gear to rack toothing lubricate, can realize the self-lubricating of rack and pinion transmission structure, simple structure, and emollient optional lubricating grease can improve the lubricated effect in high humid environment.
Drawings
Fig. 1 is a structural view of a self-lubricating gear according to an embodiment of the present invention;
fig. 2 is a sectional view of a self-lubricating gear according to an embodiment of the present invention;
fig. 3 is an axial sectional structural view of a wheel body of a self-lubricating gear according to an embodiment of the present invention;
fig. 4 is a radial sectional structural view of a wheel body of a self-lubricating gear according to an embodiment of the present invention;
fig. 5 is a rack and pinion transmission structure according to an embodiment of the present invention.
Description of the main reference numerals:
1-a wheel body; 11-mounting holes; 12-an oil transfer hole; 13-a first oil transfer groove; 2-lubricating the transmission shaft; 21-an oil transportation channel; 211-oil inlet; 22-a communication channel; 31-first end cap, 32-second end cap; 41-first sealing groove; 42-a second seal groove; 5-a transmission gear; 6-a rack; 7-a frame; 8-a drive member; 9-speed reducer.
Detailed Description
The following detailed description of the embodiments of the present invention is provided, but it should be understood that the scope of the present invention is not limited by the embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 5, the present application provides a lubricated gear, which includes a gear body 1 and a lubricated transmission shaft 2. The wheel body 1 is provided with a mounting hole 11 and an oil delivery hole 12, the mounting hole 11 and the wheel body 1 are coaxially arranged, one end of the oil delivery hole 12 is communicated with the mounting hole 11, and the other end of the oil delivery hole is arranged on the surface of a tooth socket of the wheel body 1. One end of the lubricating transmission shaft 2 extends into the mounting hole 11 and is rotatably connected with the mounting hole 11, and an oil conveying channel 21 and a communicating channel 22 are formed in the lubricating transmission shaft 2; the oil conveying channel 21 comprises an oil inlet 211, and the oil inlet 211 is formed in the outer surface of the lubricating transmission shaft 2, is located outside the mounting hole 11, and is used for being communicated with an oil supply device; one end of the communicating channel 22 is communicated with the oil conveying channel 21, and the other end is arranged on the peripheral surface of the lubricating transmission shaft 2 and communicated with the oil conveying hole 12.
In the above embodiment, the oil supply device supplies the lubricating grease into the oil supply passage 21 through the oil inlet 211, and the lubricating grease enters the oil supply hole 12 in the wheel body 1 through the communication passage 22 and flows into the tooth grooves on the surface of the wheel body 1 through the oil supply hole 12. When this lubricating gear is engaged with the rack 6, lubricating grease adheres to the rack 6, and further, other gears engaged with the rack 6 can be lubricated. Consequently on 6 gear drive of rack, set up lubricated gear and can realize the self-lubricating of 6 gear drive of rack, simple structure, convenient operation, and oil supply unit can provide lubricating grease, improves the lubricated effect under the high humid environment.
Alternatively, the oil supply device may supply lubricating oil or grease into the oil supply passage 21. Grease can be preferably used as a lubricant for the gear rack 6 structure in a high-humidity environment, so that a large amount of moisture is prevented from entering the lubricant, and the lubricating effect in the high-humidity environment is ensured.
Alternatively, the oil inlet 211 is opened on an end surface of the lubricating drive shaft 2 at an end away from the wheel body 1.
In a possible embodiment, the lubricating gear further comprises a first end cap 31, the first end cap 31 is fixedly mounted on the end surface of one side of the gear body 1, and the outer diameter of the first end cap 31 is larger than the diameter of the root circle of the gear body 1.
In the above embodiment, the first end cover 31 is disposed on one side of the wheel body 1, so as to seal the internal structure of the wheel body 1 from the end surface of the wheel body 1 and protect the internal structure of the wheel body 1; on the other hand, the lubricating grease in the tooth grooves can be effectively reduced to overflow from the end surface of the wheel body 1, and the lubricating effect is ensured.
Optionally, the outer diameter of the first end cap 31 is larger than the diameter of the tooth top circle of the wheel body 1, so that lubricating grease in the tooth grooves can be effectively prevented from overflowing from the end surface of the wheel body 1, and the lubricating effect is ensured.
In a possible embodiment, the lubricating gear further comprises a second end cap 32, the second end cap 32 is fixedly mounted on the end surface of the other side of the gear body 1, and the outer diameter of the second end cap 32 is larger than the diameter of the root circle of the gear body 1.
In the above embodiment, the second end cover 32 is disposed on one side of the wheel body 1, so as to seal the internal structure of the wheel body 1 from the end surface of the wheel body 1 and protect the internal structure of the wheel body 1; on the other hand, the lubricating grease in the tooth grooves can be effectively reduced from overflowing from the end surface of the wheel body 1, and the lubricating effect is ensured.
Optionally, the outer diameter of the second end cap 32 is larger than the diameter of the addendum circle of the wheel body 1, so that the lubricating grease in the tooth groove can be effectively prevented from overflowing from the end surface of the wheel body 1, and the lubricating effect is ensured.
Alternatively, one end surface of the wheel body 1 is provided with a first end cap 31, and the other end surface is provided with a second end cap 32.
In a possible embodiment, the inner surface of the mounting hole 11 is opened with an annular first oil delivery groove 13, the first oil delivery groove 13 cooperates with the outer surface of the lubricating transmission shaft 2 to form a first oil delivery cavity, and the first oil delivery cavity is communicated with the oil delivery hole 12 and the communication channel 22.
In the above embodiment, since the diameters of the oil transfer hole 12 and the communication passage 22 are small, and the requirement for the mounting accuracy of direct alignment is high, the first oil transfer groove 13 is provided between the oil transfer hole 12 and the communication passage 22, so that the lubricating grease in the communication passage 22 can flow into the first oil transfer cavity first and then flow into the oil transfer hole 12, and the mounting accuracy is effectively reduced.
In a possible implementation manner, the lubricating gear further includes a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are disposed between the outer surface of the lubricating transmission shaft 2 and the inner surface of the mounting hole 11, and the first sealing ring and the second sealing ring are respectively located on two axial sides of the first oil conveying cavity.
In the above embodiment, the first sealing ring and the second sealing ring are arranged on two sides of the first oil delivery cavity for sealing, so that the lubricating grease can be prevented from flowing out from the gap between the lubricating transmission shaft 2 and the wheel body 1, and further the waste of the lubricating grease can be reduced.
Optionally, the inner surface of the mounting hole is provided with a first sealing groove 41 and a second sealing groove 42, the first sealing ring is installed in the first sealing groove 41, and the second sealing ring is installed in the second sealing groove 42.
In a possible embodiment, the outer surface of the lubricating transmission shaft 2 is provided with an annular second oil conveying groove, the second oil conveying groove and the inner surface of the mounting hole 11 cooperate to form a second oil conveying cavity, and the second oil conveying cavity is communicated with the oil conveying hole 12 and the communicating channel 22.
In the above embodiment, since the diameters of the oil transfer hole 12 and the communication channel 22 are relatively small, and the requirement for the installation accuracy of direct alignment is relatively high, the second oil transfer groove is arranged between the oil transfer hole 12 and the communication channel 22, so that the lubricating grease in the communication channel 22 can flow into the second oil transfer cavity first and then flow into the oil transfer hole 12, and the installation accuracy is effectively reduced.
In a possible embodiment, the lubricating gear further includes a third sealing ring and a fourth sealing ring, the third sealing ring and the fourth sealing ring are disposed between the outer surface of the lubricating transmission shaft 2 and the inner surface of the mounting hole 11, and the third sealing ring and the fourth sealing ring are respectively located on two axial sides of the second oil conveying cavity.
In the above embodiment, the third sealing ring and the fourth sealing ring are arranged on two sides of the first oil delivery cavity for sealing, so that the lubricating grease can be prevented from flowing out from the gap between the lubricating transmission shaft 2 and the wheel body 1, and the waste of the lubricating grease can be reduced.
Alternatively, the number of the first seal ring, the second seal ring, the third seal ring and the fourth seal ring may be one or more.
In one possible embodiment, the number of the oil supply holes 12 is plural, and the plural oil supply holes 12 are provided around the axial center of the wheel body 1.
In the above embodiment, the plurality of oil feed holes 12 are provided around the axial center of the wheel body 1, so that the distribution uniformity of the lubricating grease in the tooth grooves of the wheel body 1 can be improved, and the lubricating effect can be improved.
Alternatively, the oil delivery holes 12 are arranged in a circumferential array along the axial center of the wheel body 1.
In a possible embodiment, the number of the communication passages 22 is plural, and a plurality of the communication passages 22 are provided around the axial center of the lubricating drive shaft 2.
Alternatively, a plurality of communication passages 22 are arranged in a circumferential array along the axial center of the lubricating drive shaft 2.
In a second aspect, the present application further provides a rack and pinion 6 transmission structure, where the rack and pinion 6 transmission structure includes a transmission gear 5, a rack 6, and the lubricating gear described in any embodiment of the first aspect, and the transmission gear 5 and the lubricating gear are respectively engaged with the rack 6.
In the above embodiment, the lubricating gear coats the lubricating grease on the rack gear 6, and the transmission gear 5 engaged with the rack gear 6 can be lubricated.
In a possible embodiment, the rack and pinion 6 transmission structure further comprises a frame 7, and the frame 7 is fixedly connected with the lubricating transmission shaft 2 of the lubricating gear and the transmission shaft of the transmission gear 5 respectively.
In the above embodiment, the lubricating gear and the transmission gear 5 are fixedly connected through the frame 7, so as to ensure that the lubricating gear and the transmission gear 5 can synchronously move on the rack 6.
In a possible embodiment, the rack and pinion 6 transmission structure further comprises a driving member 8, and the driving member 8 is connected with the transmission shaft of the transmission gear 5 and is used for driving the transmission gear 5 to rotate along the rack 6.
In the above embodiment, the driving member 8 is connected to the transmission shaft of the transmission gear 5, that is, the transmission gear 5 is a driving wheel and is in meshing transmission with the rack 6.
In a possible embodiment, the gear-rack 6 transmission structure further comprises a driving member 8, and the driving member 8 is connected with the rack 6 and used for driving the rack 6 to move, so that the rack 6 is meshed with the lubricating gear and the transmission gear 5.
Optionally, the rack and pinion transmission structure further comprises a speed reducer 9, and the speed reducer 9 connects the driving member 8 with the transmission shaft of the transmission gear 5.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. A lubricated gear, comprising:
the wheel body is provided with a mounting hole and an oil conveying hole, the mounting hole and the wheel body are coaxially arranged, one end of the oil conveying hole is communicated with the mounting hole, and the other end of the oil conveying hole is arranged on the surface of a tooth groove of the wheel body;
one end of the lubricating transmission shaft extends into the mounting hole and is rotatably connected with the mounting hole, and an oil conveying channel and a communicating channel are formed in the lubricating transmission shaft; the oil conveying channel comprises an oil inlet, and the oil inlet is formed in the outer surface of the lubricating transmission shaft, is positioned outside the mounting hole and is communicated with an oil supply device; one end of the communicating channel is communicated with the oil conveying channel, and the other end of the communicating channel is arranged on the peripheral surface of the lubricating transmission shaft and is communicated with the oil conveying hole.
2. The lubricated gear according to claim 1, further comprising:
the first end cover is fixedly arranged on the end surface of one side of the wheel body, and the outer diameter of the first end cover is larger than the diameter of a tooth root circle of the wheel body;
and/or the presence of a gas in the gas,
and the second end cover is fixedly arranged on the end surface of the other side of the wheel body, and the outer diameter of the second end cover is larger than the diameter of the tooth root circle of the wheel body.
3. The lubricated gear according to claim 1, wherein the inner surface of the mounting hole defines an annular first oil transfer groove, the first oil transfer groove cooperates with the outer surface of the lubricating drive shaft to form a first oil transfer cavity, and the first oil transfer cavity is communicated with the oil transfer hole and the communication passage.
4. The lubricated gear according to claim 3, further comprising a first seal ring and a second seal ring, the first seal ring and the second seal ring being disposed between the outer surface of the lubricated transmission shaft and the inner surface of the mounting hole, the first seal ring and the second seal ring being located on both axial sides of the first oil delivery cavity, respectively.
5. The lubricated gear according to claim 1, wherein the outer surface of the lubricating transmission shaft is provided with an annular second oil delivery groove, the second oil delivery groove is matched with the inner surface of the mounting hole to form a second oil delivery cavity, and the second oil delivery cavity is communicated with the oil delivery hole and the communication channel.
6. The lubricating gear according to any one of claims 1 to 5, wherein the oil feed hole is plural in number, and plural oil feed holes are provided around an axial center of the wheel body.
7. The lubricated gear according to any one of claims 1 to 5, wherein the communication passage is plural in number, and the plural communication passages are provided around an axial center of the lubricating drive shaft.
8. A rack and pinion drive structure comprising a pinion, a rack, and the lubricating gear according to any one of claims 1 to 7, wherein the pinion and the lubricating gear are engaged with the rack, respectively.
9. The rack and pinion drive of claim 8, further comprising a frame fixedly connected to the lubricating drive shaft of the lubricating gear and the drive shaft of the drive gear, respectively.
10. The rack and pinion drive of claim 8, further comprising a drive member coupled to the drive shaft of the drive gear for driving the drive gear to rotate along the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134333.XU CN217713550U (en) | 2022-05-11 | 2022-05-11 | Lubricating gear and gear rack transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221134333.XU CN217713550U (en) | 2022-05-11 | 2022-05-11 | Lubricating gear and gear rack transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217713550U true CN217713550U (en) | 2022-11-01 |
Family
ID=83793339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221134333.XU Active CN217713550U (en) | 2022-05-11 | 2022-05-11 | Lubricating gear and gear rack transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217713550U (en) |
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2022
- 2022-05-11 CN CN202221134333.XU patent/CN217713550U/en active Active
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