CN215720628U - Locking device of differential mechanism - Google Patents
Locking device of differential mechanism Download PDFInfo
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- CN215720628U CN215720628U CN202120944088.8U CN202120944088U CN215720628U CN 215720628 U CN215720628 U CN 215720628U CN 202120944088 U CN202120944088 U CN 202120944088U CN 215720628 U CN215720628 U CN 215720628U
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- positioning
- locking
- differential
- piston rod
- driving mechanism
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Abstract
The present invention provides a differential locking device, comprising: the positioning driving mechanism drives the positioning piston rod to do linear motion, the end part of the positioning piston rod is connected with the positioning plate, the positioning plate is provided with a plurality of positioning pins, and the tray is provided with positioning holes matched with the positioning pins; the locking driving mechanism drives the locking piston rod to do linear motion, the end part of the locking piston rod is connected with an ejector rod, and the ejector rod can sequentially penetrate through oil drain plug holes in the tray and the main speed reducer shell to enter the main speed reducer to lock the gear of the differential mechanism. The differential gear has the advantages that the positioning driving mechanism and the locking driving mechanism are arranged, the ejector rod extends into the oil drain plug hole of the main speed reducer to lock the differential gear, the coating of the sliding bush of the differential is prevented from being damaged, the stability and the reliability in the use process are ensured, the problem of slippage caused by the fact that the traditional spring plate type expansion sleeve is easy to wear and the expansion force is insufficient is solved, the service life is long, and the production cost is greatly saved.
Description
Technical Field
The utility model relates to the technical field of detection of a main speed reducer, in particular to a locking device of a differential mechanism.
Background
The hypoid gear pair backlash needs to be measured in the assembly of the final drive assembly, and therefore the differential needs to be locked and then the gear is clamped and rotated for manual measurement. At present, the expansion sleeve is generally extruded to expand in a tubular shaft of the differential mechanism and closely contact with the inner wall of the shaft hole, so that the purpose of locking the gear is achieved. But the inside design of novel differential mechanism's hollow shaft has sliding bush, adopts current bloated cover locking mode can damage sliding bush surperficial wear-resistant coating, influences the product property ability of reduction gear, consequently needs a new differential mechanism locking device urgently.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, the present invention provides a differential locking device to meet the requirement of locking a differential gear without damaging a sliding bush inside a differential axle tube.
The utility model provides a differential locking device, a differential gear is arranged in the differential, the differential is arranged in a shell of a main speed reducer, the main speed reducer is placed on a movable tray, and the differential locking device comprises: the positioning driving mechanism drives the positioning piston rod to do linear motion, the end part of the positioning piston rod is connected with the positioning plate, the positioning plate is provided with a plurality of positioning pins, and the tray is provided with positioning holes matched with the positioning pins; and the locking driving mechanism drives the locking piston rod to do linear motion, the end part of the locking piston rod is connected with an ejector rod, and the ejector rod can sequentially penetrate through the tray and an oil drain plug hole in the main speed reducer shell to enter the main speed reducer to lock the differential gear.
Preferably, the positioning driving mechanism and the locking driving mechanism are linear air cylinders or linear hydraulic cylinders.
Preferably, the locking mechanism further comprises a frame, and the positioning driving mechanism and the locking driving mechanism are both fixedly installed in the frame.
Preferably, two sets of slide rails are arranged in the rack, and the two sets of slide rails are respectively connected with the positioning piston rod and the locking piston rod in a sliding manner.
Preferably, the locking piston rod is connected with the ejector rod through a flange.
The differential gear has the advantages that the positioning driving mechanism and the locking driving mechanism are arranged, the ejector rod extends into the oil drain plug hole of the main speed reducer to lock the differential gear, the coating of the sliding bush of the differential is prevented from being damaged, the stability and the reliability in the use process are ensured, the problem of slippage caused by the fact that the traditional spring plate type expansion sleeve is easy to wear and the expansion force is insufficient is solved, the service life is long, and the production cost is greatly saved.
Drawings
FIG. 1 is a cross-sectional view of the differential locking device of the present invention;
FIG. 2 is a second cross-sectional view of the differential locking device of the present invention.
Element number description:
1 machine frame
2 positioning driving mechanism
21 positioning piston rod
3 locking driving mechanism
31 locking piston rod
4 Flange
5 ejector pin
6 sliding rail
61 sliding block
7 connecting plate
8 positioning plate
81 positioning pin
9 tray
10 differential gear
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, with reference to the drawings in fig. 1 as a direction, in fig. 1, outward is a front direction perpendicular to the drawing sheet, inward is a rear direction perpendicular to the drawing sheet, upward is an upper direction along the drawing sheet, downward is a lower direction along the drawing sheet, right is a right direction along the drawing sheet, and left is a left direction along the drawing sheet.
As shown in fig. 1 and 2, a differential gear 10 is provided in the differential, which is provided in a case (not shown) of a final drive, which is placed on a pallet 9 of a conveyor line, and the position of the pallet 9 is movable.
The utility model provides a locking device of a differential mechanism, which comprises a positioning driving mechanism 2 and a locking driving mechanism 3 which are positioned below a tray 9, wherein the positioning driving mechanism 2 drives a positioning piston rod 21 to do linear motion, the end part of the positioning piston rod 21 is connected with a positioning plate 8, the positioning plate 8 is provided with a plurality of positioning pins 81, and the tray 9 is provided with positioning holes matched with the positioning pins 81. Specifically, the positioning plate 8 has a rectangular shape, and the number of the positioning pins 81 is two, and the two positioning pins are respectively disposed in two corners on a diagonal of the positioning plate 8. When the positioning driving mechanism 2 drives the positioning piston rod 21 to move upwards and the positioning pin 81 is inserted into the positioning hole of the tray 9, it is ensured that the tray 9 cannot move forwards, backwards, leftwards and rightwards. After the position of the tray 9 is fixed, the locking driving mechanism 3 drives the locking piston rod 31 to do linear motion, the end part of the locking piston rod 31 is connected with the ejector rod 5 through the flange 4, and the ejector rod 5 can sequentially penetrate through a preformed hole in the tray 9 and an oil drain plug hole in a main reducer shell to enter the main reducer and abut against the circumferential surface of the differential gear 10 to realize the locking function. Preferably, the positioning driving mechanism 2 and the locking driving mechanism 3 are linear air cylinders or linear hydraulic cylinders, and those skilled in the art can select other linear driving mechanisms according to the requirement.
In one embodiment of the present invention, the differential locking device further includes a frame 1, and the positioning drive mechanism 2 and the locking drive mechanism 3 are both fixedly mounted on the bottom of the frame 1. Two sets of slide rails 6 are arranged in the frame 1, and the two sets of slide rails 6 are respectively connected with the positioning piston rod 21 and the locking piston rod 31 in a sliding manner. In this way, the slide rail 6 can play a guiding role in the linear movement of the positioning piston rod 21 and the locking piston rod 31, and the position of the piston rod is prevented from being deviated. Specifically, each set includes two vertical slide rails 6, a slide block 61 is slidably connected to each slide rail 6, and the slide block 61 is connected to the positioning piston rod 21 or the locking piston rod 31 through the connecting plate 7.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (5)
1. A differential locking device, a differential gear (10) is provided in the differential, the differential is provided in a housing of a main reducer, the main reducer is placed on a movable tray (9), characterized by comprising:
the positioning driving mechanism (2) drives the positioning piston rod (21) to do linear motion, the end part of the positioning piston rod (21) is connected with the positioning plate (8), the positioning plate (8) is provided with a plurality of positioning pins (81), and the tray (9) is provided with positioning holes matched with the positioning pins (81);
locking actuating mechanism (3), drive locking piston rod (31) are linear motion, the end connection of locking piston rod (31) has ejector pin (5), ejector pin (5) can pass in proper order tray (9) with last oil drain consent of main reducer casing gets into in the main reducer, the locking differential gear (10).
2. A differential locking device as claimed in claim 1, characterized in that said positioning drive means (2) and said locking drive means (3) are linear air cylinders or linear hydraulic cylinders.
3. A differential locking device as claimed in claim 1, further comprising a frame (1), wherein said positioning drive mechanism (2) and said locking drive mechanism (3) are both fixedly mounted in said frame (1).
4. A differential locking device according to claim 3, characterized in that two sets of slide rails (6) are provided in the frame (1), and the two sets of slide rails (6) are slidably connected to the positioning piston rod (21) and the locking piston rod (31), respectively.
5. A differential locking device according to claim 1, characterized in that the locking piston rod (31) is connected to the carrier rod (5) via a flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944088.8U CN215720628U (en) | 2021-05-06 | 2021-05-06 | Locking device of differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120944088.8U CN215720628U (en) | 2021-05-06 | 2021-05-06 | Locking device of differential mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215720628U true CN215720628U (en) | 2022-02-01 |
Family
ID=80030625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120944088.8U Active CN215720628U (en) | 2021-05-06 | 2021-05-06 | Locking device of differential mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215720628U (en) |
-
2021
- 2021-05-06 CN CN202120944088.8U patent/CN215720628U/en active Active
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