阅读说明：本技术 一种传动轴内外花键轴及装配控制方法 (Transmission shaft internal and external spline shaft and assembly control method ) 是由 漆磊 于 2021-09-17 设计创作，主要内容包括：本发明适用于传动轴装配控制技术领域,提供了一种传动轴内外花键轴,所述传动轴内外花键轴包括：前轴组件,所述前轴组件一端安装有IHC等速万向节,所述IHC等速万向节中设有内花键,所述内花键中设有三角卡簧；后轴组件,设于所述前轴组件一侧,所述后轴组件一端设有外花键轴,所述外花键轴与内花键相互配合,所述外花键轴一端设有三角卡簧槽,所述三角卡簧槽与三角卡簧相互配合。通过在传动轴相互连接的过程中实时检测其内部的压力变化,当出现压力过大或过小时进行警示,以便对装配过程进行调整,防止装配后的传动轴出现质量问题,导致其具有安全隐患。(The invention is suitable for the technical field of transmission shaft assembly control, and provides a transmission shaft internal and external spline shaft, which comprises: the joint comprises a front shaft assembly, a front shaft assembly and a rear shaft assembly, wherein one end of the front shaft assembly is provided with an IHC constant velocity universal joint, an internal spline is arranged in the IHC constant velocity universal joint, and a triangular clamp spring is arranged in the internal spline; the rear axle subassembly is located front axle subassembly one side, rear axle subassembly one end is equipped with the external spline shaft, the external spline shaft is mutually supported with the internal spline, external spline shaft one end is equipped with the triangle jump ring groove, the triangle jump ring groove is mutually supported with the triangle jump ring. Through the pressure change inside transmission shaft interconnect's in-process real-time detection, warn when pressure is too big or undersize to adjust the assembly process, prevent that the transmission shaft after the assembly from appearing the quality problem, lead to it to have the potential safety hazard.)

1. A drive shaft male and female spline shaft, characterized in that it comprises:

the joint comprises a front shaft assembly, a front shaft assembly and a rear shaft assembly, wherein one end of the front shaft assembly is provided with an IHC constant velocity universal joint, an internal spline is arranged in the IHC constant velocity universal joint, and a triangular clamp spring is arranged in the internal spline;

the rear axle subassembly is located front axle subassembly one side, rear axle subassembly one end is equipped with the external spline shaft, the external spline shaft is mutually supported with the internal spline, external spline shaft one end is equipped with the triangle jump ring groove, the triangle jump ring groove is mutually supported with the triangle jump ring.

2. A method of controlling the fitting of an internal and external spline shaft of a propeller shaft according to claim 1, comprising the steps of:

step 1, pressing the external spline shaft into the internal spline, and detecting and recording the pressure change of the external spline shaft in the pressing process;

step 2, when the external spline shaft is in contact with the internal spline, detecting and recording the pressure of the external spline shaft;

step 3, when the external spline shaft is in contact with a triangular clamp spring in the IHC constant velocity universal joint, detecting and recording the pressure of the external spline shaft;

step 4, when the triangular clamp spring groove in the external spline shaft is in contact with the triangular clamp spring in the IHC constant velocity universal joint, detecting and recording the pressure of the external spline shaft;

and 5, when the triangular clamp spring completely enters the triangular clamp spring groove, detecting and recording the pressure of the external spline shaft.

3. The method of controlling the fitting of the internal and external spline shafts of the drive shaft according to claim 2, wherein in step 1, the pressure of the external spline shaft is automatically stopped when it reaches the maximum value by setting a maximum pressure stop point of a kistler press before the external spline shaft is pressed into the internal spline.

4. The method for controlling the assembly of the internal and external spline shafts of the transmission shaft according to claim 2, wherein in step 2-5, when the pressure applied to the external spline shaft changes, the change process of the pressure is detected and recorded through TraceControl software.

5. The method for controlling the assembly of the internal and external spline shafts of the drive shaft according to claim 2, wherein the pressure values and the pressure change processes of the recorded external spline shaft are plotted on a drawing in step 2-5.

6. The method for controlling the assembly of the spline shaft according to claim 2, wherein the Kistle controller monitors the pressure at which the female spline and the male spline shaft are engaged in step 2-5, and issues a warning when the engagement pressure is less than the minimum insertion force or greater than the maximum insertion force.

Technical Field

The invention belongs to the technical field of transmission shaft assembly control, and particularly relates to an internal and external spline shaft of a transmission shaft and an assembly control method.

Background

The transmission shaft is a high-speed, low-bearing rotating body, so that the dynamic balance of the transmission shaft is crucial. The dynamic balance test is carried out on a general transmission shaft before leaving a factory, and the transmission shaft is adjusted on a balancing machine. In the case of a front engine rear wheel drive vehicle, the transmission is arranged to transmit the rotation of the transmission to the shaft of the final drive, and the transmission can be provided with a plurality of joints, and the joints can be connected through universal joints.

The transmission shaft is an important part for transmitting power in an automobile transmission system, and the transmission shaft, a gearbox and a drive axle are used for transmitting the power of an engine to wheels so that an automobile generates driving force.

At present, in the process of assembling the transmission shaft, the detection on the connection relation between the sections is often lacked, and when the connection pressure between the sections is too large or too small, the connection of the transmission shaft is often unstable, so that potential safety hazards appear.

Disclosure of Invention

The embodiment of the invention aims to provide an internal and external spline shaft of a transmission shaft and an assembly control method, and aims to solve the problems that the connection relation between sections is often lack in the process of assembling the transmission shaft at present, and the connection of the transmission shaft is often unstable and potential safety hazards appear when the connection pressure between the sections is too large or too small.

The embodiments of the present invention are implemented such that,

a drive shaft male and female spline shaft, comprising:

the joint comprises a front shaft assembly, a front shaft assembly and a rear shaft assembly, wherein one end of the front shaft assembly is provided with an IHC constant velocity universal joint, an internal spline is arranged in the IHC constant velocity universal joint, and a triangular clamp spring is arranged in the internal spline;

the rear axle subassembly is located front axle subassembly one side, rear axle subassembly one end is equipped with the external spline shaft, the external spline shaft is mutually supported with the internal spline, external spline shaft one end is equipped with the triangle jump ring groove, the triangle jump ring groove is mutually supported with the triangle jump ring.

A method for controlling the assembly of an internal spline shaft and an external spline shaft of a transmission shaft comprises the following steps:

step 1, pressing the external spline shaft into the internal spline, and detecting and recording the pressure change of the external spline shaft in the pressing process;

step 2, when the external spline shaft is in contact with the internal spline, detecting and recording the pressure of the external spline shaft;

step 3, when the external spline shaft is in contact with a triangular clamp spring in the IHC constant velocity universal joint, detecting and recording the pressure of the external spline shaft;

step 4, when the triangular clamp spring groove in the external spline shaft is in contact with the triangular clamp spring in the IHC constant velocity universal joint, detecting and recording the pressure of the external spline shaft;

and 5, when the triangular clamp spring completely enters the triangular clamp spring groove, detecting and recording the pressure of the external spline shaft.

Further, in step 1, before the external spline shaft is pressed into the internal spline, the external spline shaft is automatically stopped when the pressure reaches the maximum value by setting the maximum pressure stop point of the kistler press.

Furthermore, in step 2-5, when the pressure applied to the external spline shaft changes, the change process of the pressure is detected and recorded through TraceControl software.

Furthermore, in step 2-5, drawing is carried out on the recorded pressure values and pressure change processes of the external spline shaft.

Further, in step 2-5, the Kistle controller monitors the pressure when the internal spline is engaged with the external spline shaft, and gives an alarm when the engagement pressure is less than the minimum press-in force or greater than the maximum press-in force.

The internal and external spline shaft of the transmission shaft and the assembly control method provided by the embodiment of the invention have the following beneficial effects:

through the pressure change inside transmission shaft interconnect's in-process real-time detection, warn when pressure is too big or undersize to adjust the assembly process, prevent that the transmission shaft after the assembly from appearing the quality problem, lead to it to have the potential safety hazard.

Drawings

Fig. 1 is a schematic view of an assembly structure of an internal and external spline shaft of a transmission shaft according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of internal and external spline shafts of a transmission shaft according to an embodiment of the present invention;

FIG. 3 is a sectional view of the internal and external spline shafts of a transmission shaft according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is a schematic structural view of a front axle assembly in a transmission shaft internal and external spline shaft according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a rear shaft assembly in a transmission shaft internal and external spline shaft according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of an IHC constant velocity joint in an internal and external spline shaft of a propeller shaft according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of an IHC constant velocity joint in a drive shaft male and female spline shaft according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of an IHC constant velocity joint in a drive shaft male and female spline shaft according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of the male and female spline shafts in the male and female spline shafts of the transmission shaft according to the embodiment of the present invention;

FIG. 11 is a sectional view of the male and female spline shafts in the male and female spline shafts of the drive shaft according to the embodiment of the present invention;

FIG. 12 is a graph showing the variation of the assembly pressure;

FIG. 13 is a graph of acceptable pressure curve 1;

FIG. 14 is graph 1 of fail pressure;

FIG. 15 is a graph of acceptable pressure curve 2;

FIG. 16 is graph 3 of acceptable pressure;

FIG. 17 is a graph of maximum force stop values;

FIG. 18 is a displacement range graph;

fig. 19 is a pressure range graph.

In the drawings: 1-a front axle assembly; 2-IHC constant velocity joint; 3-rear axle assembly; 4-external spline shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 to 10, in the embodiment of the present invention, the drive shaft male and female spline shaft includes:

the joint comprises a front shaft assembly 1, wherein one end of the front shaft assembly 1 is provided with an IHC constant velocity universal joint 2, an internal spline is arranged in the IHC constant velocity universal joint 2, and a triangular clamp spring is arranged in the internal spline;

rear axle subassembly 3 is located 1 one side of front axle subassembly, 3 one end of rear axle subassembly are equipped with external spline shaft 4, external spline shaft 4 and internal spline mutually support, 4 one end of external spline shaft are equipped with the triangle jump ring groove, the triangle jump ring groove mutually supports with the triangle jump ring.

In the embodiment of the invention, the method for controlling the assembly of the internal spline shaft and the external spline shaft of the transmission shaft comprises the following steps:

step 1, pressing the external spline shaft 4 into the internal spline, and detecting and recording the pressure change of the external spline shaft 4 in the pressing process;

step 2, when the external spline shaft 4 is in contact with the internal spline, detecting and recording the pressure of the external spline shaft 4;

step 3, when the external spline shaft 4 is in contact with the triangular clamp spring in the IHC constant velocity universal joint 2, detecting and recording the pressure of the external spline shaft 4;

step 4, when the triangular clamp spring groove in the external spline shaft 4 is in contact with the triangular clamp spring in the IHC constant velocity universal joint 2, detecting and recording the pressure of the external spline shaft 4;

and 5, when the triangular clamp spring completely enters the triangular clamp spring groove, detecting and recording the pressure of the external spline shaft 4.

In the embodiment of the present invention, in step 1, before the male spline shaft 4 is pressed into the female spline, the pressure of the male spline shaft 4 is automatically stopped when it reaches the maximum value by setting the maximum pressure stop point of the kistler press.

In the embodiment of the invention, in the step 2-5, when the pressure applied to the external spline shaft 4 changes, the change process of the pressure is detected and recorded through TraceControl software.

In the embodiment of the invention, in step 2-5, the recorded pressure values and pressure change processes of the external spline shaft 4 are plotted on a drawing.

In the embodiment of the invention, in the step 2-5, the Kistle controller monitors the pressure when the internal spline is matched with the external spline shaft 4, and gives a prompt alarm when the matching pressure is less than the minimum press-in force or greater than the maximum press-in force.

As can be seen from fig. 1, the pressing of the male spline shaft into the female spline includes the following movement processes:

a is the contact between the internal spline and the external spline shaft,

the pressure of the A-B is increased continuously as the internal spline is contacted with the external spline shaft 4,

b is a triangular snap spring of which the external spline shaft 4 just contacts the IHC constant velocity universal joint 2,

the front end of the external spline shaft 4 is slowly pressed into the triangular clamp spring to continuously increase the pressure in the B-C process,

c is the triangular clamp spring groove on the external spline shaft 4 just contacting the triangular clamp spring in the IHC constant velocity universal joint 2,

C-D because the triangular clamp spring in the IHC constant velocity universal joint 2 slowly falls into the triangular clamp spring groove on the external spline shaft 4 and the pressure is slowly reduced,

d, the triangular clamp spring completely falls into the triangular clamp spring groove,

D-E is suddenly and steeply increased due to the limit pressure when the internal spline is contacted with the external spline,

e is the set maximum pressure stop point (the kistler press stops when the pressure reaches this value).

In conclusion, the whole pressing-in process of the internal spline and the external spline shaft 4 is analyzed, and each process can be monitored and set to be normal.

(a) For the process of 'a is just the contact between the internal spline and the external spline shaft 4', a tooth-aligning protection window between the internal spline and the external spline shaft 4 can be set in the Kistler controller for the process, in short, a force for the rigid contact between the internal spline and the external spline shaft 4 and the teeth is set, if the internal spline is matched with the external spline shaft 4, the force is smaller than a set value, if the internal spline is not matched with the external spline shaft 4, the force is larger than the set value, and the Kistler press exceeding the set value stops avoiding the damage to the teeth on the internal spline and the external spline shaft 4.

It can be seen from the dotted line frame in fig. 2 that the force of the rigid contact fit between the internal spline and the external spline shaft 4 is less than the set value, and it is acceptable, and it can be seen from the dotted line frame in fig. 3 that the force of the rigid contact fit between the internal spline and the external spline shaft 4 is greater than the set value, and it is unacceptable, and the apparatus stops.

(b) For the process of increasing the pressure of the internal spline and the external spline shaft 4 due to the contact between the internal spline and the external spline shaft 4, a press-in force monitoring window in the process of the matching of the internal spline and the external spline shaft 4 can be set in the Kistler controller, and simply, a minimum press-in force and a maximum press-in force are set according to the tolerance of the matching of the internal spline and the external spline shaft 4. If the Kistler controller detects that the fit pressure of the internal spline and the external spline shaft 4 is less than the minimum press-in force or greater than the maximum press-in force, indicating that the fit of the internal spline and the external spline shaft 4 is problematic, the device will prompt an alarm, and the example is shown in fig. 4 in detail. The dashed line in fig. 4 shows that the force with which the female spline and the male spline shaft 4 are fitted is acceptable between the minimum press-in force and the maximum press-in force.

(c) For the process of pressing in the front end of the B-C-D external spline and pressing in the triangular clamp spring groove, a triangular clamp spring pressing inflection point window can be set in the Kistler controller for the process, and simply, an upper limit value and a lower line value of the change rate of displacement-force (namely the derivative of the displacement-force) are set. If the Kistler controller does not detect the inflection point, the triangular clamp spring is not dropped into the triangular clamp spring groove, the device gives an alarm, and the triangular clamp spring is probably not installed in the IHC constant velocity universal joint 2. An example of inflection point detection is shown in FIG. 5, where the detected inflection point can be seen in FIG. 5 by the dashed box.

(d) For the "E is the set maximum pressure stop" procedure, a force stop value can be set in the Kistler controller, and when the press-in reaches this value, the Kistler press will stop, protecting the forces that the female and male spline shafts 4 are allowed to withstand. See figure 6 for an example.

(e) For the final plunge displacement, a final position window can be set in the Kistler controller, simply the displacement that will eventually stop falls between the minimum displacement and the maximum displacement. When the final position does not fall in the set interval, the equipment prompts an alarm, and the condition that the internal spline and the external spline shaft 4 are not matched and pressed in unqualified is indicated. See figure 7 for an example.

(f) For the final plunge force, a final force window can be set in the Kistler control, simply the final stopping force needs to fall between the minimum and maximum force. When the final position does not fall in the set interval, the equipment prompts an alarm, and the condition that the internal spline and the external spline shaft 4 are not matched and pressed in unqualified is indicated. See figure 8 for an example.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.