CN213929396U - Novel axle gear box - Google Patents
Novel axle gear box Download PDFInfo
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- CN213929396U CN213929396U CN202022997768.4U CN202022997768U CN213929396U CN 213929396 U CN213929396 U CN 213929396U CN 202022997768 U CN202022997768 U CN 202022997768U CN 213929396 U CN213929396 U CN 213929396U
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Abstract
The utility model discloses a novel axle gear box, which relates to the technical field of railway maintenance machinery engineering vehicles and comprises a box body, wherein a spline shaft, an intermediate shaft and an axle are sequentially arranged in the box body; the end part of the spline shaft is connected with a power device; the intermediate shaft is provided with a transmission gear; the axle is provided with a driven gear meshed with the transmission gear and further comprises a gear shifting locking mechanism; two ends of the intermediate shaft are respectively provided with a low-speed gear and a high-speed gear; the spline shaft is provided with a driving gear, and the driving gear can move along the axial direction of the spline shaft; the gear shifting locking mechanism is used for driving the driving gear to move, so that the driving gear is meshed or separated from the low-speed gear, and the driving gear is meshed or separated from the high-speed gear.
Description
Technical Field
The utility model relates to a railway maintenance machinery machineshop car technical field, specifically novel axletree gear box.
Background
At present, an axle gear box of a large-scale railway maintenance mechanical engineering vehicle is generally only provided with a low-speed driving function, meets the self-running requirement of low-speed operation, cannot meet the high-speed self-running requirement of the vehicle, and needs other power vehicles to draw when the vehicle runs at a high speed in a connected mode.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a novel axletree gear box possesses high, low-speed velocity ratio, satisfies whole car low-speed operation, high-speed operation through adjusting gear box and walks to go the requirement by oneself.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a novel axle gear box comprises a box body, wherein a spline shaft, an intermediate shaft and an axle are sequentially arranged in the box body; the end part of the spline shaft is connected with a power device; the intermediate shaft is provided with a transmission gear; the axle is provided with a driven gear meshed with the transmission gear and further comprises a gear shifting locking mechanism; two ends of the intermediate shaft are respectively provided with a low-speed gear and a high-speed gear; the spline shaft is provided with a driving gear, and the driving gear can move along the axial direction of the spline shaft; the gear shifting locking mechanism is used for driving the driving gear to move, so that the driving gear is meshed or separated from the low-speed gear, and the driving gear is meshed or separated from the high-speed gear.
The further improvement lies in that: the driving gear is a duplicate gear and comprises a first gear matched with the low-speed gear and a second gear matched with the high-speed gear.
The further improvement lies in that: the driving gear is connected with the spline shaft through an internal spline.
The further improvement lies in that: the driving gear is provided with an annular groove, the gear shifting locking mechanism comprises a sliding rod arranged in the box body, and a shifting fork matched with the annular groove is arranged on the sliding rod.
The further improvement lies in that: the gear shifting locking mechanism comprises a driving mechanism arranged outside the box body, and one end of the sliding rod penetrates out of the box body and then is connected with the driving mechanism.
The further improvement lies in that: the gear shifting locking mechanism comprises a locking rod and a position sensing device which are arranged outside the box body; one end of the locking rod is connected with the sliding rod; an induction plate is arranged on the locking rod; the position sensing device is used for detecting the position change of the sensing plate to determine the working state of the driving gear.
The further improvement lies in that: the position sensing device comprises three proximity switches which are arranged at intervals and respectively comprise a high-speed proximity switch, a neutral proximity switch and a low-speed proximity switch; when the high-speed proximity switch detects the induction plate, the driving gear is meshed with the high-speed gear; when the neutral proximity switch detects the induction plate, the driving gear is separated from the high-speed gear and the low-speed gear; when the low-speed approach switch detects the induction plate, the driving gear is meshed with the low-speed gear.
The further improvement lies in that: the gear shifting locking mechanism comprises a locking plate, and a locking pin device matched with the locking plate is arranged at the other end of the locking rod.
The further improvement lies in that: the spline shaft is connected with the box body through a first bearing; the intermediate shaft is connected with the box body through a second bearing; the axle is connected with the box body through a third bearing.
The further improvement lies in that: and a lubricating system is arranged in the box body and comprises a lubricating pump.
The beneficial effects of the utility model reside in that:
the axle gear box increases the working condition of high-speed self-walking on the premise of meeting the function of low-speed driving, greatly saves the required traction operation cost during high-speed coupling, and has compact spatial arrangement, easy manufacture, use and maintenance.
Drawings
Fig. 1 is a schematic structural view of a novel axle gear box in an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the shifting fork portion in the embodiment of the present invention;
fig. 3 is a schematic structural diagram of the shift locking mechanism in the embodiment of the present invention.
Reference numerals:
1-a box body; 11-a lubrication system; 12-a power plant;
2-a spline shaft; 21-a first bearing; 22-a drive gear; 23-a first gear; 24-a second gear; 25-an annular groove;
3-intermediate shaft; 31-a second bearing; 32-low speed gear; 33-high speed gear; 34-a transmission gear;
4-axle shaft; 41-a third bearing; 42-a driven gear;
5-a shift lock mechanism; 51-a slide bar; 52-a shifting fork; 53-a drive mechanism; 54-a locking lever; 55-a sensing plate; 56-position sensing means; 57-locking pin means; 58-locking plate.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Referring to fig. 1 and 2, the embodiment of the present invention provides a novel axle gear box, which includes a box body 1, and a spline shaft 2, an intermediate shaft 3 and an axle 4 are sequentially arranged in the box body 1; specifically, the spline shaft 2 is connected with the box body 1 through a first bearing 21; the intermediate shaft 3 is connected with the box body 1 through a second bearing 31; the axle 4 is connected to the casing 1 through a third bearing 41. The end part of the spline shaft 2 is connected with a power device 12; the intermediate shaft 3 is provided with a transmission gear 34; the axle 4 is provided with a driven gear 42 meshed with the transmission gear 34, and the novel axle gear box further comprises a gear shifting locking mechanism 5; specifically, a lubricating system 11 is arranged in the box body 1, and the lubricating system 11 comprises a lubricating pump. The lubricating pump is an eccentric wheel driven plunger pump or a gear driven gear pump.
A low-speed gear 32 and a high-speed gear 33 are respectively arranged at two ends of the intermediate shaft 3;
the spline shaft 2 is provided with a driving gear 22, and the driving gear 22 can move along the axial direction of the spline shaft 2; specifically, the driving gear 22 is a dual gear including a first gear 23 adapted to the low speed gear 32 and a second gear 24 adapted to the high speed gear 33. The drive gear 22 is connected to the spline shaft 2 by an internal spline.
The shift lock mechanism 5 is used for driving the driving gear 22 to move, and the driving gear 22 is engaged with or disengaged from the low-speed gear 32 and the driving gear 22 is engaged with or disengaged from the high-speed gear 33.
Referring to fig. 2, the driving gear 22 is provided with an annular groove 25, and the gearshift locking mechanism 5 includes a slide rod 51 disposed in the housing 1, and a shift fork 52 fitted into the annular groove 25 is disposed on the slide rod 51.
Referring to fig. 3, the shift lock mechanism 5 includes a driving mechanism 53 disposed outside the case 1, and one end of the slide rod 51 is connected to the driving mechanism 53 after penetrating out of the case 1.
The shift lock mechanism 5 further includes a lock lever 54 and a position sensing device 56 provided outside the case 1; one end of the locking lever 54 is connected with the slide rod 51; the locking lever 54 is provided with a sensing plate 55; the position sensing device 56 is used for detecting the position change of the sensing plate 55 to determine the working state of the driving gear 22. Specifically, the position sensing device 56 includes three proximity switches arranged at intervals, which are a high-speed proximity switch, a neutral proximity switch, and a low-speed proximity switch; when the high-speed proximity switch detects the induction plate 55, the driving gear 22 is meshed with the high-speed gear 33; when the neutral proximity switch detects the sensor plate 55, the drive gear 22 is disengaged from the high-speed gear 33 and the low-speed gear 32; when the low-speed proximity switch detects the sensor plate 55, the drive gear 22 meshes with the low-speed gear 32.
The shift lock mechanism 5 further includes a lock plate 58, and the other end of the lock lever 54 is provided with a lock pin device 57 fitted to the lock plate 58. The lock plate 58 is provided with lock holes corresponding to three gears of high speed, neutral and low speed, and the gears are locked in different states by inserting the lock pin device 57 into different lock holes.
The utility model discloses a theory of operation does:
when the vehicle runs at low speed, the gear-shifting driving device moves leftwards, the driving gear also moves leftwards by driving the shifting fork, the first gear of the driving gear is meshed with the low-speed gear, the shifting fork is locked at a low-speed position by a spring and a ball at the top of the shifting fork, the axle gear box transmits the torque and the rotating speed output by the power device to an axle according to a certain speed ratio by the meshing of the driving gear and the low-speed gear and the meshing of the transmission gear and the driven gear, and the low-speed operation running of the whole vehicle is realized.
When the vehicle is driven at a high speed, the gear-shifting driving device moves rightwards, the driving gear also moves rightwards by driving the shifting fork, a second gear of the driving gear is meshed with the high-speed gear, the shifting fork is locked at a high speed position by a spring and a ball at the top of the shifting fork, and the axle gear box transmits the torque and the rotating speed output by the power device to an axle according to a certain speed ratio by the meshing of the driving gear and the high-speed gear and the meshing of the transmission gear and the driven gear, so that the high-speed running of the whole vehicle is realized.
The shifting fork is moved to enable the driving gear to move leftwards or rightwards, so that the driving gear is separated from the low-speed gear or the high-speed gear, and the shifting fork is locked at a neutral gear. For higher safety and reliability, the lock pin of the locking pin device needs to be manually locked in the lock hole of the locking plate during the hitching operation, so that the double-safety function is realized.
In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.
Claims (10)
1. A novel axle gear box comprises a box body (1), wherein a spline shaft (2), an intermediate shaft (3) and an axle (4) are sequentially arranged in the box body (1); the end part of the spline shaft (2) is connected with a power device (12); the intermediate shaft (3) is provided with a transmission gear (34); axletree (4) are provided with driven gear (42) with drive gear (34) meshing, its characterized in that: further comprising a shift lock mechanism (5);
two ends of the intermediate shaft (3) are respectively provided with a low-speed gear (32) and a high-speed gear (33);
the spline shaft (2) is provided with a driving gear (22), and the driving gear (22) can move along the axial direction of the spline shaft (2);
the gear shifting locking mechanism (5) is used for driving the driving gear (22) to move, so that the driving gear (22) is meshed with or separated from the low-speed gear (32), and the driving gear (22) is meshed with or separated from the high-speed gear (33).
2. The novel axle gearbox of claim 1, wherein: the driving gear (22) is a duplicate gear and comprises a first gear (23) matched with the low-speed gear (32) and a second gear (24) matched with the high-speed gear (33).
3. The novel axle gearbox of claim 1, wherein: the driving gear (22) is connected with the spline shaft (2) through an internal spline.
4. The novel axle gearbox of claim 1, wherein: the driving gear (22) is provided with an annular groove (25), the gear shifting locking mechanism (5) comprises a sliding rod (51) arranged in the box body (1), and a shifting fork (52) matched with the annular groove (25) is arranged on the sliding rod (51).
5. The novel axle gearbox of claim 4, wherein: the gear shifting locking mechanism (5) comprises a driving mechanism (53) arranged outside the box body (1), and one end of the sliding rod (51) penetrates out of the box body (1) and then is connected with the driving mechanism (53).
6. The novel axle gearbox of claim 5, wherein: the gear shifting locking mechanism (5) comprises a locking rod (54) and a position sensing device (56), wherein the locking rod is arranged outside the box body (1); one end of the locking rod (54) is connected with the sliding rod (51); an induction plate (55) is arranged on the locking rod (54); the position sensing device (56) is used for detecting the position change of the sensing plate (55) to determine the working state of the driving gear (22).
7. The novel axle gearbox of claim 6, wherein: the position sensing device (56) comprises three proximity switches which are arranged at intervals and are respectively a high-speed proximity switch, a neutral proximity switch and a low-speed proximity switch; when the high-speed proximity switch detects the induction plate (55), the driving gear (22) is meshed with the high-speed gear (33); when the neutral proximity switch detects the induction plate (55), the driving gear (22) is separated from the high-speed gear (33) and the low-speed gear (32); when the low-speed approach switch detects the sensor plate (55), the drive gear (22) engages with the low-speed gear (32).
8. The novel axle gearbox of claim 6, wherein: the gear shifting locking mechanism (5) comprises a locking plate (58), and a locking pin device (57) matched with the locking plate (58) is arranged at the other end of the locking rod (54).
9. The novel axle gearbox of claim 1, wherein: the spline shaft (2) is connected with the box body (1) through a first bearing (21); the intermediate shaft (3) is connected with the box body (1) through a second bearing (31); the axle (4) is connected with the box body (1) through a third bearing (41).
10. The novel axle gearbox of claim 1, wherein: a lubricating system (11) is arranged in the box body (1), and the lubricating system (11) comprises a lubricating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997768.4U CN213929396U (en) | 2020-12-12 | 2020-12-12 | Novel axle gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022997768.4U CN213929396U (en) | 2020-12-12 | 2020-12-12 | Novel axle gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213929396U true CN213929396U (en) | 2021-08-10 |
Family
ID=77151867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022997768.4U Active CN213929396U (en) | 2020-12-12 | 2020-12-12 | Novel axle gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213929396U (en) |
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2020
- 2020-12-12 CN CN202022997768.4U patent/CN213929396U/en active Active
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