CN214162008U - Power takeoff assembly device - Google Patents
Power takeoff assembly device Download PDFInfo
- Publication number
- CN214162008U CN214162008U CN202021297806.9U CN202021297806U CN214162008U CN 214162008 U CN214162008 U CN 214162008U CN 202021297806 U CN202021297806 U CN 202021297806U CN 214162008 U CN214162008 U CN 214162008U
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- China
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- cylinder
- fixing plate
- sliding rail
- piston rod
- power takeoff
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Abstract
The utility model discloses a power takeoff assembly device, which comprises a bracket, wherein a first fixing plate is arranged on the bracket, and a first cylinder and a second cylinder are fixed on the first fixing plate; the piston rod of the second cylinder can penetrate through the first fixing plate to move, and the moving direction of the piston rod of the first cylinder is parallel to that of the piston rod of the second cylinder; a piston rod of the second air cylinder is connected with a first guide rod in a transmission manner; the first sliding rail is arranged on the bracket, and the length direction of the first sliding rail is parallel to the movement direction of the first cylinder piston rod; a first slider; a third fixing plate; a first positioning tool; and a second positioning tool. The problem that the oil seal hole of the right shell and the input bevel gear shaft of the lower left shell are aligned is solved, and the quality problem of oil leakage is solved.
Description
Technical Field
The utility model relates to a power takeoff assembly field, specific is a power takeoff assembly quality.
Background
The main structure of the power takeoff is semi-open, namely, the power takeoff is divided into a left shell and a right shell.
The left shell assembly mainly comprises a left shell, three shafts and a bearing, wherein the three shafts are respectively an input bevel gear shaft, a driven bevel gear shaft with a hypoid large gear ring and a hypoid pinion output shaft.
The right housing assembly mainly comprises a right housing, a right input helical gear shaft oil seal (hereinafter referred to as oil seal), a shaft thrust bearing outer ring and two housing positioning pins.
Before the two shells are combined, the two shells are assembled into an assembly respectively, one ends of two bevel gear shafts in the left shell are installed on the left shell, and a bearing interface at the other end needs to be matched with the right shell.
The most difficult point of assembling the two shell assemblies is how to ensure that the oil seal in the right shell assembly is completely assembled on the input bevel gear shaft of the left shell. The oil seal is installed on the right shell through press fitting, the outer ring is made of metal materials and is in interference fit with the shell, the inner ring of the oil seal is made of rubber and is finally matched with the outer diameter of the input bevel gear shaft, and therefore if the single side of the inner ring contacts the oil seal excessively, the rubber inner ring is directly damaged or turned over, and oil leakage of a product is finally caused.
The existing assembly method is that the large installation surface of the left shell assembly is positioned upwards and fixed on a track tray, a guide rod is firstly installed on each of two threaded holes in the symmetrical direction of the left shell, then the large installation surface of the right shell assembly is manually guided downwards, the two guide rods are firstly guided into corresponding bolt holes of the right shell assembly, and then the right shell assembly is installed on the left shell assembly from top to bottom.
When the large mounting surface of the left shell assembly is fixed on the track tray upwards, the input bevel gear shaft is in a state that the inner ring of the thrust cone bearing below the shaft is located on the outer ring of the bearing and then located in the bearing seat of the shell (the inner ring of the thrust cone bearing and the shaft are in interference fit and are pressed on the shaft), the inner ring and the outer ring of the thrust bearing are only pressed tightly through the gravity of the shaft, so that the position of the input bevel gear shaft in the shell can be inclined, the bevel teeth on one side of the input bevel gear shaft are matched with the bevel teeth of the driven bevel gear shaft with the hypoid large gear ring, and the input bevel gear shaft can be inclined through unilateral contact. Therefore, the input bevel gear shaft is not completely vertical, which causes the misalignment of the hole and the shaft in the process of assembling the right shell assembly, thereby causing the rubber lip of the oil seal to be damaged or flanged by the shaft, and finally causing the oil leakage of the product.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect among the prior art, the embodiment of the utility model provides a power takeoff assembly quality is provided, its solve right casing oil blanket hole and lower left casing input bevel gear axle centering problem, eliminate the quality problems of oil leak.
In order to achieve the above object, an embodiment of the present application discloses a power takeoff assembly device, including:
the air cylinder device comprises a bracket, wherein a first fixing plate is arranged on the bracket, and a first air cylinder and a second air cylinder are fixed on the first fixing plate; the piston rod of the second cylinder can penetrate through the first fixing plate to move, and the moving direction of the piston rod of the first cylinder is parallel to that of the piston rod of the second cylinder; a piston rod of the second cylinder is in transmission connection with a guide rod;
the first sliding rail is arranged on the bracket, and the length direction of the first sliding rail is parallel to the movement direction of the first cylinder piston rod;
the first sliding block is arranged on the first sliding rail and can move along the length direction of the first sliding rail; a second fixing plate is arranged on the first sliding block, and a piston rod of the first air cylinder is in transmission connection with the second fixing plate; one end of the guide rod penetrates through the second fixing plate; a third air cylinder is fixed on the second fixing plate, and a piston rod of the third air cylinder penetrates through the second fixing plate;
the first sliding block is also provided with a second sliding rail, a third sliding rail and a fourth sliding rail, the length direction of the second sliding rail is consistent with that of the first sliding rail, the length directions of the third sliding rail and the fourth sliding rail are perpendicular to that of the first sliding rail, and the third sliding rail and the fourth sliding rail are arranged on two sides of the second sliding rail;
the third fixing plate is arranged on the second slide rail through a second slide block, a piston rod of the third air cylinder is in transmission connection with the third fixing plate, and the guide rod penetrates through the third fixing plate;
the first positioning tool is arranged on the third slide rail through a third slide block;
and the second positioning tool is arranged on the fourth sliding rail through a fourth sliding block.
Preferably, the second fixing plate is further provided with a linear bearing, and the guide rod penetrates through the linear bearing.
Preferably, a fourth cylinder and a fifth cylinder are further arranged on the first sliding block, the fourth cylinder is in transmission connection with the first positioning tool, and the fifth cylinder is in transmission connection with the second positioning cylinder.
Preferably, a pressing block is sleeved on the guide rod and arranged below the third fixing plate, and the pressing block can slide on the guide rod.
Preferably, the power takeoff assembly device further comprises a tray, and a through hole for fixing the shell is formed in the tray.
Preferably, the power takeoff assembly device further comprises a second guide rod disposed on the tray.
Preferably, the first positioning tool and the second positioning tool are L-shaped.
The utility model has the advantages as follows:
1. the first positioning tool and the second positioning tool ensure that the right shell can be kept horizontal before being installed in the left shell assembly and in the installation process, so that an oil seal in the right shell is not damaged;
2. the compression block ensures the central positioning of the oil seal hole of the right shell (namely, the right input bevel gear shaft hole of the right shell), thereby ensuring that the center of the oil seal hole is concentric with the input bevel gear shaft in the left shell in the process of installing the right shell;
3. the first guide rod compresses and aligns the input bevel gear shaft in the left shell assembly, so that the state of the input bevel gear shaft is fixed, the center of the input bevel gear shaft is concentric with an oil seal hole of the upper right shell, and therefore the two parts are concentric in the process of assembling and matching and finally contain the leading-in of an oil seal;
4. the pressing block has overlarge deviation with the big hole of the right shell and is not led into the big hole of the right shell, if the shell is not positioned, the stroke of the third cylinder has deviation, and the magnetic yellow switch on the third cylinder has no in-place signal;
5. the whole mechanism has simple operation requirements, and the cylinder carries out the compressing and positioning of the shell and carries out the downward assembly.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a power takeoff assembly according to an embodiment of the present invention;
FIG. 2 is a side view of a power take-off assembly in an embodiment of the present invention;
reference numerals of the above figures:
1. a support; 11. a first fixing plate; 12. a first cylinder; 13. a second cylinder; 14. a first guide bar; 15. a compression block;
2. a first slide rail; 21. a first slider; 22. a second fixing plate; 23. a linear bearing; 24. a third cylinder; 25. a second slide rail; 26. a third slide rail; 27. a fourth slide rail;
3. a third fixing plate;
4. a first positioning tool; 41. a fourth cylinder;
5. a second positioning tool; 51. a fifth cylinder;
6. a tray;
7. second guide bar
8. A right housing;
9. and a left shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
In order to achieve the above purpose, the utility model provides a power takeoff assembly device.
In this embodiment, referring to fig. 1, the power takeoff assembly device includes a bracket 1, a first slide rail 2, a third fixing plate 3, a first positioning tool 4, and a second positioning tool 5.
The first fixing plate 11 is disposed at an upper end of the bracket 1.
Referring to fig. 2, a first cylinder 12 and a second cylinder 13 are fixed on the first fixing plate 11, a piston rod of the second cylinder 13 can pass through the first fixing plate 11 to move, and a moving direction of the piston rod of the first cylinder 12 is parallel to a moving direction of the piston rod of the second cylinder 13.
A piston rod of the second cylinder 13 is connected with a first guide rod 14 in a transmission manner, and the first guide rod 14 is vertically arranged.
The first slide rail 2 is arranged on the bracket 1, and the length direction of the first slide rail 2 is parallel to the movement direction of the piston rod of the first cylinder 12.
The first sliding block 21 is arranged on the first sliding rail 2, and the first sliding block 21 can move up and down along the first sliding rail 2.
The first slide block 21 is provided with a second fixing plate 22, and a piston rod of the first cylinder 12 is in transmission connection with the second fixing plate 22.
Referring to fig. 2, one end of the first guide rod 14 passes through the second fixing plate 22, and the second fixing plate 22 is further provided with a linear bearing 23. The first guide rod 14 is disposed through a linear bearing 23.
A third cylinder 24 is fixed on the second fixing plate 22, and a piston rod of the third cylinder 24 passes through the second fixing plate 22.
Referring to fig. 1 or fig. 2, a second slide rail 25, a third slide rail 26 and a fourth slide rail 27 are further disposed on the first slide block 21, a length direction of the second slide rail 25 is consistent with a length direction of the first slide rail 2, length directions of the third slide rail 26 and the fourth slide rail 27 are perpendicular to the length direction of the first slide rail 2, and the third slide rail 26 and the fourth slide rail 27 are disposed on two sides of the second slide rail 25.
Referring to fig. 1, the third fixing plate 3 is disposed on the second slide rail 25 through a second slide block, a piston rod of the third cylinder 24 is in transmission connection with the third fixing plate 3, and the first guide rod 14 is disposed through the third fixing plate 3.
Referring to fig. 2, a pressing block 15 is sleeved on the first guide rod 14, the pressing block 15 is disposed below the third fixing plate 3, and the pressing block 15 can slide on the first guide rod 14.
The first slider 21 is further provided with a fourth air cylinder 41 and a fifth air cylinder 51, the fourth air cylinder 41 is in transmission connection with the first positioning tool 4, and the fifth air cylinder 51 is in transmission connection with the second positioning air cylinder.
It can be understood that the first positioning tool 4 and the second positioning tool 5 are L-shaped.
Referring to fig. 1 or fig. 2, the first positioning tool 4 is disposed on the third slide rail 26 through a third slide block, and the second positioning tool 5 is disposed on the fourth slide rail 27 through a fourth slide block.
The power takeoff assembly device further comprises a tray 6, and a through hole for fixing the shell is formed in the tray 6. The power takeoff assembling device further comprises a second guide rod 7, and the second guide rod 7 is arranged on the tray 6.
By means of the structure, the left shell 9 is placed on the tray 6, and the left shell 9 is limited through a spigot of an input helical gear shaft hole below the left shell and a through hole of the tray 6.
Further, the second guide bar 7 is inserted into the shaft hole of the driven bevel gear shaft with the hypoid large gear ring of the left housing 9.
Further, the right housing 8 is placed on the first positioning mechanism and the second positioning mechanism, the second guide rod 7 is arranged in a guide pipe hole of the right housing 8 in a penetrating mode, and the fourth cylinder 41 and the fifth cylinder 51 drive the first positioning tool 4 and the second positioning tool 5 to move towards the middle portion so that the right housing 8 can be moved to a proper position.
Further, the piston rod of the third cylinder 24 moves downwards, the third cylinder 24 drives the third fixing plate 3 to move downwards, and the third fixing plate 3 presses the pressing block 15 into the right input helical gear shaft hole (the hole where the oil seal is located) of the right shell 8
Further, the first cylinder 12 drives the first piston rod to enter the input bevel gear shaft of the right housing 8.
Further, the second cylinder 13 drives the second fixing plate 22 to move downward, the second fixing plate 22 drives the third cylinder 24 to move downward, the compressing block 15 is driven to move downward, the right shell 8 is installed in the left shell 9, and therefore the oil seal in the right shell 8 is completely matched with the oil seal diameter of the input bevel gear shaft.
Further, the first cylinder 12 retracts, the guide rod exits from the left shell 9, the third cylinder 24 retracts, the pressing block 15 leaves the right shell 8, the first positioning mechanism and the second positioning mechanism leave the right shell 8, and the second cylinder 13 retracts to complete the assembly of the shells.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. A power takeoff assembly device, comprising:
the air cylinder device comprises a bracket, wherein a first fixing plate is arranged on the bracket, and a first air cylinder and a second air cylinder are fixed on the first fixing plate; the piston rod of the second cylinder can penetrate through the first fixing plate to move, and the moving direction of the piston rod of the first cylinder is parallel to that of the piston rod of the second cylinder; a piston rod of the second air cylinder is connected with a first guide rod in a transmission manner;
the first sliding rail is arranged on the bracket, and the length direction of the first sliding rail is parallel to the movement direction of the first cylinder piston rod;
the first sliding block is arranged on the first sliding rail and can move along the length direction of the first sliding rail; a second fixing plate is arranged on the first sliding block, and a piston rod of the first air cylinder is in transmission connection with the second fixing plate; one end of the first guide rod penetrates through the second fixing plate; a third air cylinder is fixed on the second fixing plate, and a piston rod of the third air cylinder penetrates through the second fixing plate;
the first sliding block is also provided with a second sliding rail, a third sliding rail and a fourth sliding rail, the length direction of the second sliding rail is consistent with that of the first sliding rail, the length directions of the third sliding rail and the fourth sliding rail are perpendicular to that of the first sliding rail, and the third sliding rail and the fourth sliding rail are arranged on two sides of the second sliding rail;
the third fixing plate is arranged on the second slide rail through a second slide block, a piston rod of the third air cylinder is in transmission connection with the third fixing plate, and the first guide rod penetrates through the third fixing plate;
the first positioning tool is arranged on the third slide rail through a third slide block;
and the second positioning tool is arranged on the fourth sliding rail through a fourth sliding block.
2. The power takeoff assembly as recited in claim 1 wherein said second stationary plate further comprises a linear bearing, said first guide rod being disposed through said linear bearing.
3. The power takeoff assembly device as claimed in claim 1, wherein a fourth cylinder and a fifth cylinder are further provided on said first slide block, said fourth cylinder being in driving connection with said first positioning tooling, and said fifth cylinder being in driving connection with said second positioning cylinder.
4. The power takeoff assembly device as claimed in claim 1, wherein a pressing block is sleeved on said first guide rod, said pressing block being disposed below said third fixing plate, said pressing block being slidable on said first guide rod.
5. The power takeoff assembly of claim 1 further comprising a tray having a through hole for securing the housing.
6. The power takeoff assembly device of claim 5, further comprising a second guide bar, said second guide bar being disposed on said pallet.
7. The power takeoff assembly device of claim 1, wherein the first and second positioning tooling are L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297806.9U CN214162008U (en) | 2020-07-06 | 2020-07-06 | Power takeoff assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297806.9U CN214162008U (en) | 2020-07-06 | 2020-07-06 | Power takeoff assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214162008U true CN214162008U (en) | 2021-09-10 |
Family
ID=77590837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021297806.9U Active CN214162008U (en) | 2020-07-06 | 2020-07-06 | Power takeoff assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214162008U (en) |
-
2020
- 2020-07-06 CN CN202021297806.9U patent/CN214162008U/en active Active
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