Phase stepless tuning test device for oppositely connected half-axes

Abstract

The present invention provides a phase stepless tuning test device for opposed half-axles, including a phase stepless tuning mechanism, a hydraulic voltage stabilizing source, an electronically controlled execution unit and a calculator, wherein the limit stepless tuning mechanism is installed on a test bench, including a No. 1 half-axle, a No. 2 half-axle, a No. 1 motor, a No. 2 motor, and a double-beveled plug assembly, wherein the No. 1 motor is connected to the No. 1 half-axle through a coupling, the No. 2 motor is connected to the No. 2 half-axle through a coupling, and the No. 1 half-axle and the No. 2 half-axle are connected through a double-beveled plug assembly; the No. 1 motor and the No. 2 motor are installed on the test bench through a motor seat, the No. 1 half-axle is installed on the test bench through the No. 1 shaft seat, and the No. 2 half-axle is installed on the test bench through the No. 2 shaft seat; the No. 2 shaft seat is provided with an oil inlet, which is connected to the plug cavity of the No. 2 half-axle to form a hydraulic oil channel. The present invention realizes that the parts fixed on the shaft can rotate relatively while rotating synchronously through its internal double gear structure dynamic connection.

Description

Technical Field

[0001] The invention belongs to the field of power machinery, and in particular relates to a phase stepless tuning test device for oppositely connected half shafts. Background Art

[0002] Commonly used half-axle connections usually use splines, flanges, couplings, etc. to connect the half-axle and the connected parts into a whole, which can withstand torsional torque and transmit axial rotational motion, but cannot adjust the relative rotational position of the connected parts. For example, the solid half-axle commonly used in automobiles to transmit torque between the differential and the drive wheel is connected to the half-axle gear through splines on the differential side and connected to the hub of the drive wheel with a flange on the outside. After the half-axle gear, half-axle, and hub are connected, they become a whole. Once the relative rotational angle position of each component needs to be adjusted, it can only be achieved by reassembly. Summary of the invention

[0003] In view of this, the present invention aims to propose a phase-stepless tuning test device for opposed half-shafts, which can realize relative rotation of components fixed on the shafts while rotating synchronously through its internal double gear structure dynamic connection; it can be applied between the cam plate and the output shaft in a torpedo engine, and can realize that the cam plate and the output shaft can transmit torque while adjusting the relative rotation angle by a small angle, providing the possibility of online adjustment for changing the compression ratio and valve timing.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] The phase stepless tuning test device of opposed-connected half-shafts comprises a phase stepless tuning mechanism, a hydraulic voltage stabilizing source, an electronically controlled execution unit and a calculator, wherein the limit stepless tuning mechanism is installed on the test bench, comprising a No. 1 half-shaft, a No. 2 half-shaft, a No. 1 motor, a No. 2 motor and a double-bevel gear plug assembly; a No. 1 shaft seat is provided at the end of the No. 1 half-shaft, and the No. 1 motor is connected to the No. 1 half-shaft through a coupling; a No. 2 shaft seat is provided at the end of the No. 2 half-shaft, and the No. 2 motor is connected to the No. 2 half-shaft through a coupling, and the No. 1 half-shaft and the No. 2 half-shaft are connected through a double-bevel gear plug assembly. The gear-plug-rod assembly is connected; the No. 1 motor and the No. 2 motor are installed on the test bench through the motor seat, the No. 1 half-shaft is installed on the test bench through the No. 1 shaft seat, and the No. 2 half-shaft is installed on the test bench through the No. 2 shaft seat; the No. 2 shaft seat is provided with an oil inlet hole, the oil inlet hole is connected with the plug column cavity of the No. 2 half-shaft to form a hydraulic oil channel, the oil inlet hole is also connected to the hydraulic pressure stabilizing source through a pipeline, both couplings are provided with signal disks, and are connected to the electronic control execution unit; the No. 1 motor and the No. 2 motor are also connected to the electronic control execution unit, and the electronic control execution unit is connected to the computer.

[0006] Furthermore, one end of the double-beveled plug assembly is connected to the first half shaft through a gear pair, and the other end of the double-beveled plug assembly is also connected to the second half shaft through a gear pair, and a guide plug is provided that matches the gap of the plug cavity.

[0007] Furthermore, the double-beveled gear plunger assembly includes a No. 1 external bevel gear, a No. 2 external bevel gear and a guide plunger, the No. 1 external bevel gear is connected to the No. 2 external bevel gear through a No. 1 connecting part, and the No. 2 external bevel gear is connected to the guide plunger through a No. 2 connecting part.

[0008] Furthermore, a spring seat is provided on the end face of the No. 1 external bevel gear, and a limiting step is provided on the connecting end face between the No. 2 external bevel gear and the No. 2 connecting part.

[0009] Furthermore, a spring installation cavity, a limit cavity and a gear sleeve cavity are sequentially arranged in the No. 1 half-shaft from the inside to the outside, and the No. 1 gear sleeve cavity is provided with a No. 1 internal bevel gear sleeve that cooperates with the No. 1 external bevel gear.

[0010] Furthermore, the spring installation cavity is used to install the spring, and the inner diameter of the spring installation cavity is smaller than the inner diameter of the first limiting cavity.

[0011] Furthermore, the second half shaft is provided with a plug cavity, a second limit cavity and a second gear sleeve cavity from the inside to the outside, and the second gear sleeve cavity is provided with a second inner bevel gear sleeve matching with the second outer bevel gear.

[0012] Furthermore, the inner diameter of the plug column cavity is smaller than the inner diameter of the No. 2 limit cavity, and the No. 2 half-shaft is also provided with a hydraulic oil channel connected to the plug column cavity.

[0013] Compared with the prior art, the phase stepless tuning test device of the opposedly connected half-axes of the present invention has the following advantages:

[0014] (1) The phase-stepless tuning test device for the opposed half-axles of the present invention adopts an integral bushing or bearing support, which no longer has special requirements for the installation space and is easier to install.

[0015] (2) The phase-stepless tuning test device for the opposed half-shafts of the present invention can realize the transmission of the integral transmission shaft while also realizing the relative rotation of the shaft body or the parts on the shaft.

[0016] (3) The phase-stepless tuning test device of the opposed-connected half-shafts of the present invention can be applied to mechanical devices such as opposed-structured hydraulic motors or opposed-piston engines to increase the phase-stepless tuning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the principle of a phase stepless tuning test device for oppositely connected half-axes according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a first half-axle of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the second half-axle of an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a double-beveled tooth plug assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the second axle seat according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Phase stepless adjustment mechanism; 11. Half shaft No. 1; 111. Spring installation cavity; 112. Limit cavity No. 1; 113. External helical gear sleeve No. 1; 12. Half shaft No. 2; 121. Plug cavity; 122. Limit cavity No. 2; 123. Internal helical gear sleeve No. 2; 124. Hydraulic oil channel; 13. Motor No. 1; 14. Motor No. 2; 15. Double helical gear plug assembly; 151. External helical gear No. 1; 152. External helical gear No. 2; 153. Guide plug; 154. Spring seat; 155. Limit step; 2. Hydraulic pressure stabilizing source; 3. Electronically controlled execution unit; 4. Calculator; 5. Motor seat; 6. Shaft seat No. 1; 7. Shaft seat No. 2; 71. Oil inlet. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] Phase stepless tuning test device for oppositely connected half shafts, such as Figure 1-Figure 5 As shown, it includes a phase stepless tuning mechanism, a hydraulic voltage stabilizing source 2, an electronically controlled execution unit 3 and a calculator 4, wherein the limit stepless tuning mechanism is installed on the test bench, including a No. 1 half shaft 11, a No. 2 half shaft 12, a No. 1 motor 13, a No. 2 motor 14, and a double-beveled plug assembly 15; a No. 1 shaft seat 6 is provided at the end of the No. 1 half shaft 11, and the No. 1 motor 13 is connected to the No. 1 half shaft 11 through a coupling; a No. 2 shaft seat 7 is provided at the end of the No. 2 half shaft 12, and the No. 2 motor 14 is connected to the No. 2 half shaft 12 through a coupling, and the No. 1 half shaft 11 and the No. 2 half shaft 12 are connected through the double-beveled plug assembly 15; the No. 1 motor 13 and the No. 2 motor 14 are installed on the test bench through the motor seat 5, the No. 1 half shaft 11 is installed on the test bench through the No. 1 shaft seat 6, and the No. 2 half shaft 12 is installed on the test bench through the No. 1 shaft seat The No. 2 axle seat 7 is installed on the test bench; the No. 2 axle seat 7 is provided with an oil inlet hole 71, which is connected to the plug column cavity 121 of the No. 2 axle seat 12 to form a hydraulic oil channel 124. The oil inlet hole 71 is also connected to the hydraulic pressure stabilizing source 2 through a pipeline. Both couplings are provided with signal disks and are connected to the electronic control execution unit 3; the No. 1 motor 13 and the No. 2 motor 14 are also connected to the electronic control execution unit 3, and the electronic control execution unit 3 is connected to the computer; the internal hydraulic verticality of the No. 2 axle seat 12 is controlled by a closed-loop control system to change the driving force acting on the right side of the double-bevel gear plug column, so that the double-bevel gear plug column moves axially and rotates in the direction of the helical angle of the bevel gear, and synchronously drives the No. 1 axle seat 11 to rotate relative to the No. 2 axle seat 12. Under the joint action of the reset spring and the hydraulic pressure, the No. 1 axle seat 11 reaches the target angle position, and finally realizes the phase stepless tuning function of the oppositely connected axle seats.

[0030] The No. 1 motor 13, the No. 2 motor 14, the computer, the electronic control execution unit 3, the hydraulic pressure source 2, the angle sensor, and the control harness together form a closed-loop control system. Through the angle sensor signal feedback on the coupling of the signal disk, the electronic control execution unit 3 is used to adjust the hydraulic pressure value of the hydraulic pressure source 2 entering the No. 2 semi-axle 12 online, and under the joint action of the reset spring and the hydraulic pressure, the No. 1 semi-axle 11 reaches the target angle position. The working frequency of the No. 1 motor 13 and the No. 2 motor 14 is controlled by the electronic control execution unit 3, and the driving frequency can be synchronous or asynchronous, and even one of them stops driving and only does idling.

[0031] Preferably, one end of the double-bevel plug assembly 15 is connected to the first half shaft 11 through a gear pair, and the other end of the double-bevel plug assembly 15 is connected to the second half shaft 12 through a gear pair, and a guide plug 153 is provided to be clearance-matched with the plug cavity 121. Figure 1 As shown, the return spring is installed inside the first half shaft 11, and pre-compression is achieved by relying on the left end face of the double-bevel gear plug; the left and right moving distance of the double-bevel gear plug inside the opposite half shaft is limited by the left end face of the double-bevel gear plug and the right step end face of the right gear.

[0032] The double-helical gear plug has the characteristics of a double-rotation external helical gear and a cylindrical plug; the double-rotation external helical gear cooperates with the helical gear sleeves inside the first half shaft 11 and the second half shaft 12 respectively, and their rotation directions are designed according to the driven gears and determined according to the left and right hand rules to ensure that the axial force directions of the double external helical gears are relative or opposite.

[0033] Preferably, the double-beveled plug assembly 15 includes a No. 1 external bevel gear 151, a No. 2 external bevel gear and a guide plug 153, the No. 1 external bevel gear 151 is connected to the No. 2 external bevel gear 152 through a No. 1 connecting part, and the No. 2 external bevel gear 152 is connected to the guide plug 153 through a No. 2 connecting part.

[0034] Preferably, a spring seat 154 is provided on the end surface of the first external bevel gear 151 , and a limiting step 155 is provided on the connecting end surface between the second external bevel gear 152 and the second connecting portion.

[0035] Preferably, the first half shaft 11 is provided with a spring installation cavity 111, a first limit cavity 112 and a first gear sleeve cavity from the inside to the outside, and the first gear sleeve cavity is provided with a first internal bevel gear sleeve matched with the first external bevel gear 151. The rotation direction of the internal bevel gear sleeve of the first half shaft 11 is the same as the rotation direction of the left gear of the double bevel gear plug column and other basic parameters; the first half shaft 11 has a structural feature of installing a reset spring and a structural feature of limiting the position of the left end face of the double bevel gear plug column; the rotation direction of the internal bevel gear sleeve of the second half shaft 12 is the same as the rotation direction of the right gear of the double bevel gear plug column and other basic parameters; the second half shaft 12 has a structural feature of matching with the cylindrical plug of the double bevel gear plug column, a limit step 155 and a hydraulic oil channel 124.

[0036] Preferably, the spring installation cavity 111 is used to install a spring, and the inner diameter of the spring installation cavity 111 is smaller than the inner diameter of the first limiting cavity 112 .

[0037] Preferably, the second half shaft 12 is provided with a plug cavity 121 , a second limit cavity 122 and a second gear sleeve cavity from the inside to the outside, and the second gear sleeve cavity is provided with a second inner bevel gear sleeve 123 matched with the second outer bevel gear 152 .

[0038] Preferably, the inner diameter of the plug cavity 121 is smaller than the inner diameter of the second limiting cavity 122 , and the second half-shaft 12 is further provided with a hydraulic oil channel 124 communicating with the plug cavity 121 .

[0039] The electric control execution unit 3 adjusts the pressure value of the hydraulic pressure stabilizing source 2 online, thereby changing the magnitude of the hydraulic thrust acting on the right side of the double-beveled gear plunger. The thrust acting on the right side of the double-beveled gear plunger is not limited to the hydraulic form, but can also be directly driven by electrical, magnetic, pneumatic and other systems.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A phase stepless tuning test device for oppositely connected half-axes, characterized in that: It includes a phase stepless tuning mechanism, a hydraulic voltage stabilizing source, an electronically controlled execution unit and a calculator, wherein the limit stepless tuning mechanism is installed on the test bench, including a No. 1 half-shaft, a No. 2 half-shaft, a No. 1 motor, a No. 2 motor, and a double-beveled plug assembly; a No. 1 shaft seat is provided at the end of the No. 1 half-shaft, and the No. 1 motor is connected to the No. 1 half-shaft through a coupling; a No. 2 shaft seat is provided at the end of the No. 2 half-shaft, and the No. 2 motor is connected to the No. 2 half-shaft through a coupling, and the No. 1 half-shaft and the No. 2 half-shaft are connected through a double-beveled plug assembly; a Motor No. 1 and motor No. 2 are installed on the test bench through motor seats, half shaft No. 1 is installed on the test bench through shaft seat No. 1, and half shaft No. 2 is installed on the test bench through shaft seat No. 2; shaft seat No. 2 is provided with an oil inlet hole, which is connected with the plug column cavity of half shaft No. 2 to form a hydraulic oil channel, and the oil inlet hole is also connected to the hydraulic pressure stabilizing source through a pipeline, and both couplings are provided with signal disks and connected to the electronic control execution unit; motor No. 1 and motor No. 2 are also connected to the electronic control execution unit, and the electronic control execution unit is connected to the computer.

2. The phase stepless tuning test device of the opposed half-axes according to claim 1 is characterized in that: One end of the double-beveled plug assembly is connected to the first half shaft through a gear pair, and the other end of the double-beveled plug assembly is also connected to the second half shaft through a gear pair, and a guide plug is provided that matches the plug cavity clearance.

3. The phase stepless tuning test device for opposed half-axes according to claim 2 is characterized in that: The double-bevel gear plunger assembly comprises a No. 1 external bevel gear, a No. 2 external bevel gear and a guide plunger. The No. 1 external bevel gear is connected to the No. 2 external bevel gear through a No. 1 connecting portion, and the No. 2 external bevel gear is connected to the guide plunger through a No. 2 connecting portion.

4. The phase stepless tuning test device for opposed half-axes according to claim 3 is characterized in that: A spring seat is arranged on the end face of the No. 1 external bevel gear, and a limiting step is arranged on the connecting end face of the No. 2 external bevel gear and the No. 2 connecting part.

5. The phase stepless tuning test device for opposed half-axes according to claim 1 is characterized in that: A spring installation cavity, a limit cavity and a gear sleeve cavity are arranged in sequence from the inside to the outside in the No. 1 half shaft. The No. 1 gear sleeve cavity is provided with a No. 1 internal bevel gear sleeve matched with the No. 1 external bevel gear.

6. The phase stepless tuning test device for opposingly connected half-axes according to claim 5 is characterized in that: The spring installation cavity is used to install the spring, one end of the spring is contacted with the bottom of the spring cavity, and the other end is sleeved with the spring seat, and the inner diameter of the spring installation cavity is smaller than the inner diameter of the No. 1 limiting cavity.

7. The phase stepless tuning test device of the opposed half-axes according to claim 1 is characterized in that: The second half shaft is provided with a plug cavity, a second limit cavity and a second gear sleeve cavity from the inside to the outside, and the second gear sleeve cavity is provided with a second inner bevel gear sleeve matched with the second outer bevel gear.

8. The phase stepless tuning test device for opposingly connected half-axes according to claim 7 is characterized in that: The inner diameter of the plug column cavity is smaller than the inner diameter of the No. 2 limit cavity, and the No. 2 half shaft is also provided with a hydraulic oil channel communicated with the plug column cavity.

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