CN216199380U - Transfer case distal end hydraulic pump connecting device - Google Patents
Transfer case distal end hydraulic pump connecting device Download PDFInfo
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- CN216199380U CN216199380U CN202122692694.8U CN202122692694U CN216199380U CN 216199380 U CN216199380 U CN 216199380U CN 202122692694 U CN202122692694 U CN 202122692694U CN 216199380 U CN216199380 U CN 216199380U
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- transfer case
- hydraulic pump
- shaft
- transmission shaft
- support frame
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Abstract
The utility model provides a transfer case distal end hydraulic pump connection device, relates to transfer case technical field, including a section of thick bamboo type support frame, section of thick bamboo type support frame fixed connection is between transfer case and hydraulic pump, the inside rotation of section of thick bamboo type support frame is connected with the transmission shaft, the transfer case passes through the transmission shaft drive with the hydraulic pump and is connected, the transmission shaft is close to transfer case one end and is equipped with the external splines, the transmission shaft is close to hydraulic pump one end and is equipped with the internal splines, the one end that the transmission shaft was equipped with the external splines is connected on the output shaft of transfer case, the one end that the transmission shaft was equipped with the internal splines is connected on the input shaft of hydraulic pump. The utility model can realize the connection and power transmission of the transfer case and the far-end hydraulic pump without changing the structure of the transfer case or even additionally arranging a hydraulic pump bracket.
Description
Technical Field
The utility model relates to the technical field of transfer cases, in particular to a far-end hydraulic pump connecting device of a transfer case.
Background
Along with the maturity of technique, the last hydraulic pressure mechanism that begins more use of mechanical equipment generally distributes the output with the help of the transfer case with input power for multiunit hydraulic pump, and each delivery outlet of transfer case is nearer under some circumstances, and the hydraulic pump that can lead to each delivery outlet when the hydraulic pump is bulky can produce the interference, leads to the unable installation of hydraulic pump. It is common practice to connect the transfer case by a cardan shaft after moving a set (or sets) of hydraulic pumps backward a certain distance to avoid interfering hydraulic pumps.
On one hand, the connection mode needs to transform the output end of the transfer case, and changes the original internal spline into an external flange type so as to be connected with the universal shaft; similarly, a flange is required to be provided on the hydraulic pump to connect with the cardan shaft. On the other hand, after the hydraulic pump is far away from the transfer case, the hydraulic pump needs to be fixed, and then a support needs to be reset for fixing. When the system is complex to match, the transfer case also needs special customization, and when the universal shaft is connected, the universal shaft can not be additionally provided with a protective cover due to space limitation, so that serious potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a transfer case far-end hydraulic pump connecting device which realizes the connection and power transmission of a transfer case and a far-end hydraulic pump on the premise of not changing the structure of the transfer case.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a transfer case distal end hydraulic pump connecting device, installs between transfer case and hydraulic pump, includes a section of thick bamboo type support frame, section of thick bamboo type support frame fixed connection is between transfer case and hydraulic pump, section of thick bamboo type support frame internal rotation is connected with the transmission shaft, the transfer case passes through the transmission shaft drive with the hydraulic pump and is connected.
Furthermore, the two ends of the transmission shaft are provided with retaining shoulders, the inner wall of the cylindrical support frame is provided with a clamping groove, a clamping ring is installed in the clamping groove, and a bearing is installed between the clamping ring and the retaining shoulders.
Furthermore, a left flange and a right flange are respectively arranged on two sides of the cylindrical support frame, the transfer case shell is fixedly connected with the left flange, and the hydraulic pump is fixedly connected with the right flange.
Furthermore, a first outer circle seam allowance is arranged on the left flange, a first inner circle seam allowance is arranged on the transfer case shell, and the first outer circle seam allowance is matched with the first inner circle seam allowance.
Furthermore, a left mounting hole is formed in the left flange, a first bolt is mounted in the left mounting hole, and the first bolt penetrates through the left mounting hole and then is in threaded connection with a threaded hole in the transfer case shell.
Furthermore, a second inner circle spigot is arranged on the right flange, a second outer circle spigot is arranged on the hydraulic pump, and the second outer circle spigot is matched with the second inner circle spigot.
Furthermore, a fixing bolt is installed on the hydraulic pump, and the fixing bolt is in threaded connection with the inner threaded hole of the right flange.
Furthermore, the end, close to the transfer case, of the transmission shaft is provided with an external spline, the end, close to the hydraulic pump, of the transmission shaft is provided with an internal spline, the end, provided with the external spline, of the transmission shaft is connected to the output shaft of the transfer case, and the end, provided with the internal spline, of the transmission shaft is connected to the input shaft of the hydraulic pump.
Furthermore, an output shaft of the transfer case is free of oil seal.
Furthermore, an oil return hole is formed in one end, close to the hydraulic pump, of the cylindrical support frame, and the oil return hole is located in the edge of the right flange and is connected to the transfer case shell through a lubricating oil pipe.
Furthermore, the transfer case includes the transfer case casing, transfer case casing middle part rotates and is connected with central drive shaft, install the driving gear on the central drive shaft, central drive shaft one side parallel arrangement has the output shaft, the output shaft rotates and connects in the transfer case casing, install driven gear on the output shaft, the driving gear meshes with driven gear mutually, the output shaft middle part is equipped with the internal spline, the one end that the transmission shaft was equipped with the external spline is connected on the output shaft.
Furthermore, the front end of the hydraulic pump is provided with an input shaft, the input shaft is provided with an external spline, and one end of the transmission shaft, which is provided with an internal spline, is connected to the input shaft.
The utility model has the beneficial effects that: the utility model can realize the connection and power transmission of the transfer case and the far-end hydraulic pump without changing the structure of the transfer case or even additionally arranging a hydraulic pump bracket. The transfer case can be connected with the hydraulic pump through the cylindrical support frame and the transmission shaft, and the transmission shaft is supported on the inner wall of the cylindrical support frame through 2 bearings so as to ensure better concentricity and prevent the transfer case from swinging greatly; the design of the retaining shoulder and the snap ring is used for axially positioning the bearing and the transmission shaft and preventing the bearing and the transmission shaft from axially moving.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
in the figure: 1 transfer case, 11 transfer case casings, 12 central drive shafts, 13 driving gears, 14 output shafts, 15 driven gears, 16 first inner circle tang, 21 cartridge type support frame, 211 draw-in groove, 213 left flange, 214 left mounting hole, 215 first bolt, 216 first outer circle tang, 217 right flange, 218 second inner circle tang, 22 transmission shafts, 222 fender shoulder, 231 snap ring, 232 bearing, 3 hydraulic pump, 31 input shaft, 32 second outer circle tang, 5 lubricating oil pipe, 6 oil return holes.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
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 in specific cases to those skilled in the art.
As shown in fig. 1 to 3, a transfer case far-end hydraulic pump connecting device is installed between a transfer case 1 and a hydraulic pump 3, and comprises a cylindrical support frame 21, the cylindrical support frame 21 is fixedly connected between the transfer case 1 and the hydraulic pump, a transmission shaft 22 is rotatably connected inside the cylindrical support frame, an external spline is arranged at one end, close to the transfer case, of the transmission shaft, an internal spline is arranged at one end, close to the hydraulic pump, of the transmission shaft, one end, provided with the external spline, of the transmission shaft is connected to an output shaft of the transfer case, and one end, provided with the internal spline, of the transmission shaft is connected to an input shaft of the hydraulic pump.
Further, due to the fact that spline connection is adopted, gaps exist among the connection parts, in order to prevent the transmission shaft from moving and swinging greatly, blocking shoulders 222 are arranged at two ends of the transmission shaft, and in cooperation with the blocking shoulders, clamping grooves 211 are formed in the inner wall of the cylindrical support frame, clamping rings 231 are installed in the clamping grooves, and bearings 232 are installed between the clamping rings and the blocking shoulders. The transmission shaft is supported on the inner wall of the cylindrical support frame through 2 bearings so as to ensure better concentricity and prevent the transmission shaft from swinging greatly; the design of the retaining shoulder and the snap ring is used for axially positioning the bearing and the transmission shaft and preventing the bearing and the transmission shaft from axially moving.
In at least one embodiment, the transfer case 1 comprises a transfer case shell 11, a central driving shaft 12 is rotatably connected to the middle of the transfer case shell 11, a driving gear 13 is mounted on the central driving shaft, and in cooperation with the driving gear, an output shaft 14 is arranged on one side of the central driving shaft in parallel, the output shaft is rotatably connected in the transfer case shell, a driven gear 15 is mounted on the output shaft, the driving gear is meshed with the driven gear, an internal spline is arranged in the middle of the output shaft, and in cooperation with the internal spline, one end of the transmission shaft, which is provided with an external spline, is connected to the output shaft.
In at least one embodiment, the front end of the hydraulic pump 3 is provided with an input shaft 31, the input shaft is provided with an external spline, and in cooperation with the external spline, one end of the transmission shaft, which is provided with an internal spline, is connected to the input shaft.
In at least one embodiment, a left flange 213 and a right flange 217 are respectively arranged on two sides of the cylindrical support frame, the left flange is fixedly connected with a transfer case shell, and the right flange is fixedly connected with a hydraulic pump.
The scheme refines, be equipped with first excircle tang 216 on the left side flange, it is with it complex, be equipped with first interior round tang 16 on the transfer case casing, first excircle tang cooperatees with first interior round tang to guarantee the concentricity.
And (3) refining the scheme, wherein a left mounting hole 214 is formed in the left flange, a first bolt 215 is mounted in the left mounting hole, and the first bolt penetrates through the left mounting hole and is then in threaded connection with a threaded hole in the transfer case shell 11.
The scheme refines, is equipped with second interior circle tang 218 on the right flange, be equipped with second excircle tang 32 on the hydraulic pump, second excircle tang cooperatees with second interior circle tang to guarantee the concentricity. And the right flange is provided with an internal thread hole so as to be fixedly connected with the hydraulic pump through a bolt.
Specifically, a fixing bolt is mounted on the hydraulic pump and is in threaded connection with an internal threaded hole of the right flange.
Because the structure of the output end of the transfer case is unchanged, and the lubrication of the bearing in the cylindrical support frame is considered, the output end of the transfer case does not have an oil seal, and the lubricating oil in the transfer case can enter the cylindrical support frame to lubricate the bearing. For preventing its lubricating oil from accumulating in a large number in the inside of cartridge type support frame, oil gallery 6 has been seted up to the one end that the cartridge type support frame is close to the hydraulic pump, the oil gallery is in right flange edge and is connected to the transfer case casing through lubricating oil pipe 5 to realize the oil return.
The working mode is that when the hydraulic pump is installed at the far end of the transfer case, the hydraulic pump installation at the far end of the transfer case can be realized only by adding the mechanism, and the structure of the transfer case does not need to be changed, so that the feasibility of the scheme is greatly improved. And when the hydraulic pump weight is lighter, need not increase extra supporting mechanism even, can realize the support of hydraulic pump through the cartridge type support frame.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (10)
1. The utility model provides a transfer case distal end hydraulic pump connecting device, installs between transfer case and hydraulic pump, its characterized in that includes a section of thick bamboo type support frame, section of thick bamboo type support frame fixed connection is between transfer case and hydraulic pump, the inside rotation of section of thick bamboo type support frame is connected with the transmission shaft, the transfer case passes through the transmission shaft drive with the hydraulic pump and is connected.
2. The transfer case distal hydraulic pump connecting device according to claim 1, wherein retaining shoulders are arranged at two ends of the transmission shaft, a clamping groove is arranged on the inner wall of the cylindrical support frame, a clamping ring is arranged in the clamping groove, and a bearing is arranged between the clamping ring and the retaining shoulders.
3. The transfer case distal hydraulic pump connection device according to claim 1 or 2, wherein a left flange and a right flange are respectively provided on both sides of the cylindrical support frame, the left flange is fixedly connected with a transfer case shell, and the right flange is fixedly connected with a hydraulic pump.
4. The transfer case distal hydraulic pump connection device of claim 3, wherein the left flange is provided with a first outer circular seam allowance, the transfer case housing is provided with a first inner circular seam allowance, and the first outer circular seam allowance is matched with the first inner circular seam allowance.
5. The transfer case distal hydraulic pump connection device of claim 4, wherein the left flange has a left mounting hole therein, and wherein a first bolt is received in the left mounting hole and is threaded into a threaded hole in the transfer case housing after passing through the left mounting hole.
6. The transfer case distal hydraulic pump connection device of claim 3, wherein a second inner circular seam allowance is provided on the right flange, a second outer circular seam allowance is provided on the hydraulic pump, and the second outer circular seam allowance is matched with the second inner circular seam allowance.
7. The transfer case distal hydraulic pump connection of claim 1, wherein the drive shaft is externally splined at an end adjacent the transfer case, the drive shaft is internally splined at an end adjacent the hydraulic pump, the externally splined end of the drive shaft is connected to the output shaft of the transfer case, and the internally splined end of the drive shaft is connected to the input shaft of the hydraulic pump.
8. The transfer case distal hydraulic pump connection device of claim 1, wherein the transfer case output shaft is oil-free, and an oil return hole is provided in an end of the cylindrical support bracket near the hydraulic pump, the oil return hole being in a right flange edge and connected to the transfer case through a lubricating oil pipe.
9. The transfer case far-end hydraulic pump connecting device according to claim 1, wherein the transfer case comprises a transfer case shell, a central driving shaft is rotatably connected to the middle of the transfer case shell, a driving gear is mounted on the central driving shaft, an output shaft is arranged on one side of the central driving shaft in parallel, the output shaft is rotatably connected into the transfer case shell, a driven gear is mounted on the output shaft and meshed with the driving gear, an internal spline is arranged in the middle of the output shaft, and one end, provided with an external spline, of the transmission shaft is connected to the output shaft.
10. The transfer case remote hydraulic pump connection of claim 1, wherein an input shaft is provided at a front end of the hydraulic pump, the input shaft is provided with external splines, and an end of the transmission shaft provided with internal splines is connected to the input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122692694.8U CN216199380U (en) | 2021-11-04 | 2021-11-04 | Transfer case distal end hydraulic pump connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122692694.8U CN216199380U (en) | 2021-11-04 | 2021-11-04 | Transfer case distal end hydraulic pump connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216199380U true CN216199380U (en) | 2022-04-05 |
Family
ID=80902815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122692694.8U Active CN216199380U (en) | 2021-11-04 | 2021-11-04 | Transfer case distal end hydraulic pump connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216199380U (en) |
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2021
- 2021-11-04 CN CN202122692694.8U patent/CN216199380U/en active Active
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