Deep hole blind assembly device and method for gear transmission closed cavity of main speed reducer

Abstract

The invention belongs to the field of mechanical transmission, and particularly relates to a main reducer gear transmission closed cavity deep hole blind assembly device and method. According to the device, the upper end and the lower end of an internal spline reducing sleeve are provided with reducing internal splines which are the same as internal splines of a spline sleeve; the lower end of the internal spline reducing sleeve is mounted on an external spline of the gear set; the upper end and the lower end of the external spline reducing sleeve are provided with reducing external splines which are the same as the external splines of the spline sleeve; the lower end of the external spline reducing sleeve is mounted on an internal spline of the gear set; the upper end and the lower end of the internal spline closed cavity simulation sleeve are provided with simulation internal splines identical to the internal splines of the gear set. The lower end of the internal spline closed cavity simulation sleeve is mounted at the upper end of the external spline reducing sleeve; the upper end and the lower end of the external spline closed cavity simulation sleeve are provided with simulation external splines identical to the external splines of the gear set. The lower end of the external spline closed cavity simulation sleeve is mounted at the upper end of the internal spline reducing sleeve; the brake handle is fixed with the internal spline closed cavity simulation sleeve, and the force application handle is fixed with the external spline closed cavity simulation sleeve.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical transmission, and particularly relates to a main reducer gear transmission closed cavity deep hole blind assembly device and method. BACKGROUND

[0002] The current manual blind assembly and trial assembly method needs to insert a hand-held spline sleeve into the gear transmission closed cavity in the machine case in order to realize the assembly of the closed cavity, and the assembly angle is found by feeling.

[0003] The manual blind assembly and trial assembly method cannot visually observe the matching state of the spline teeth of the gear transmission system closed cavity, so the correct assembly angle of the spline sleeve cannot be judged, and the spline sleeve can only be rotated by hand and continuously tried to be assembled with the spline teeth of the closed cavity. The assembly efficiency is low, and the spline teeth may be damaged due to the large trial assembly force. SUMMARY

[0004] The present application provides a main reducer gear transmission closed cavity deep hole blind assembly device and method, which converts the inner and outer spline angle matching form of the closed cavity from a blind state to a visual state, improves the blind efficiency of the closed cavity deep hole, and solves the problem of high assembly difficulty caused by the deep assembly position, the small assembly space, and the difficulty in observing the closed cavity spline matching angle.

[0005] TECHNICAL SCHEME A main reducer gear transmission closed cavity deep hole blind assembly device comprises an inner spline adapter sleeve, an outer spline adapter sleeve, an inner spline closed cavity simulation sleeve, an outer spline closed cavity simulation sleeve, a brake handle, and a force adding handle. The inner spline adapter sleeve is provided with the same adapter inner spline as the inner spline of the spline sleeve at both ends; and the lower end of the inner spline adapter sleeve is installed on the outer spline of the gear set. The outer spline adapter sleeve is provided with the same adapter outer spline as the outer spline of the spline sleeve at both ends; and the lower end of the outer spline adapter sleeve is installed on the inner spline of the gear set. The inner spline closed cavity simulation sleeve is provided with the same simulation inner spline as the inner spline of the gear set at both ends; and the lower end of the inner spline closed cavity simulation sleeve is installed on the upper end of the outer spline adapter sleeve. The outer spline closed cavity simulation sleeve is provided with the same simulation outer spline as the outer spline of the gear set at both ends; and the lower end of the outer spline closed cavity simulation sleeve is installed on the upper end of the inner spline adapter sleeve. The brake handle is fixed with the inner spline closed cavity simulation sleeve, and the force adding handle is fixed with the outer spline closed cavity simulation sleeve.

[0006] Further, the inner side of the adapter inner spline of the inner spline adapter sleeve is provided with an axial limiting table; and the upper end surface of the inner spline adapter sleeve is at least 5 mm higher than the end surface of the machine case.

[0007] Further, the adapter external spline inside of the external spline adapter sleeve is provided with an axial limiting platform; the upper end surface of the external spline adapter sleeve is at least 5 mm higher than the end surface of the casing.

[0008] The internal spline closed cavity simulation sleeve cooperates with the external spline adapter sleeve, and the external spline closed cavity simulation sleeve cooperates with the internal spline adapter sleeve, so that the internal spline closed cavity simulation sleeve and the external spline closed cavity simulation sleeve form a simulation closed cavity which is completely consistent with the spline matching state of the product closed cavity, and the function of converting the blind assembly closed cavity into a visible closed cavity is realized.

[0009] Further, the internal diameter of the internal spline adapter sleeve and the external diameter of the external spline adapter sleeve are gap-fitted, and the fitting gap is not more than 0.5 mm. The internal spline adapter sleeve and the external spline adapter sleeve are not associated, so as to ensure that any tooth matching state of the product closed cavity is accurately converted to the outside of the casing.

[0010] Further, the brake handle is radially arranged.

[0011] Further, the force applying handle is axially arranged.

[0012] By rotating the handle, the transmission chain of the product can be loaded, and the installation and disassembly of the tooling can be facilitated.

[0013] A main reducer gear transmission closed cavity deep hole blind assembly method, the steps are as follows: Step one: install the internal spline adapter sleeve to the external spline of the closed cavity gear set; Step two: pass the external spline adapter sleeve through the internal spline adapter sleeve and install it to the internal spline of the closed cavity gear set; Step three: install the internal spline closed cavity simulation sleeve to the upper end of the external spline adapter sleeve; Step four: install the external spline closed cavity simulation sleeve to the upper end of the internal spline adapter sleeve; Step five: fix the internal spline closed cavity simulation sleeve through the brake handle, rotate the external spline closed cavity simulation sleeve clockwise or counterclockwise by driving the force applying handle, adjust the gear backlash of the gear set, and the gear backlash between each gear is accumulated to zero in a certain direction; Step six: adjust the spline sleeve to be installed between the internal and external spline closed cavity simulation sleeves; Step seven: mark the angular position of the spline sleeve between the spline sleeve and the casing; Step eight: remove the assembly device and assemble the spline sleeve according to the marked angular position of the spline sleeve.

[0014] Further, in step five, the brake handle is fixed with the case, the circumferential movement of the brake handle is limited, the force moment of the force handle is 10N*m~20N*m, and the force handle is rotated until it cannot move. The outer spline closed cavity simulation sleeve installed on the force handle outside the product case can load the transmission chain of the product by rotating the handle, the backlash is eliminated to one side, and then the closed loop assembly is carried out, so that the load sharing performance of the gear transmission system is improved.

[0015] Beneficial effects: The main reducer gear transmission closed cavity deep hole blind assembly method and device provided by the application comprises the following steps: step one, installing an outer spline adapter sleeve into an inner spline of a closed cavity and transferring the outer spline to the outside of a case; step two, installing an inner spline adapter sleeve into an outer spline of the closed cavity and transferring the inner spline to the outside of the case; step three, installing an inner spline simulation sleeve onto the inner spline adapter sleeve outside the case to form the same inner spline state as the closed cavity; step four, installing an outer spline simulation sleeve onto the inner spline adapter sleeve outside the case to form the same outer spline state as the closed cavity; step five, eliminating the circumferential backlash of the gear transmission system by loading the inner and outer spline simulation sleeves; and step six, performing trial assembly on the simulation closed cavity formed by the closed part and the outside of the case and performing formal assembly at a feasible assembly angle. Through twice adapter of the process spline, the closed cavity at the deep hole inside the case is transferred to the outside of the case, the blind assembly state is converted into a visual assembly state, the backlash of the transmission system is eliminated through the loading device, the load sharing of the meshing of the transmission system is ensured, and the method is particularly suitable for assembly of the main reducer gear transmission closed cavity with a deep hole structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The flowchart of the main reducer gear transmission closed cavity deep hole blind assembly method provided by the application is shown in the figure. Figure 2 The structural diagram of the main reducer gear transmission closed cavity deep hole blind assembly device provided by the application is shown in the figure. The reference signs are explained as follows: 1, inner spline adapter sleeve; 2, outer spline adapter sleeve; 3, inner spline closed cavity simulation sleeve; 4, outer spline closed cavity simulation sleeve; 5, brake handle; 6, force handle. DETAILED DESCRIPTION The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0017] A blind assembly device for a deep hole in a closed cavity of a main reducer gear transmission includes internal and external spline adapter sleeves that can cooperate with the closed cavity at the deep hole. The spline parameters and angular phases of the spline teeth at both ends of the two spline adapter sleeves are exactly the same. The spline at one end of each spline adapter sleeve cooperates with the spline of the closed cavity, and the spline at the other end extends to the visible area outside the casing.

[0018] It includes two closed cavity simulation sleeves with internal splines and external splines respectively. The internal spline closed cavity simulation sleeve cooperates with the external spline adapter sleeve, and the external spline closed cavity simulation sleeve cooperates with the internal spline adapter sleeve, so that the internal spline and external spline closed cavity simulation sleeves form a simulated closed cavity that is completely consistent with the spline matching state of the product closed cavity, realizing the function of converting the blind-installed closed cavity into a visible closed cavity.

[0019] A force-adding handle is installed on the internal spline closed cavity simulation sleeve outside the product's casing. By rotating the handle, the product's transmission chain can be loaded, and after the tooth gap is eliminated to one side, closed-loop assembly can be performed, which can improve the load-sharing performance of the gear transmission system.

[0020] There is no correlation between the internal and external spline adapter sleeves, which can ensure that any gear tooth matching state of the product's closed cavity is accurately transferred to the outside of the receiver.

[0021] Figure 1 This is a flow chart of the method for blind assembly of a closed cavity deep hole of a main reducer gear transmission provided by the present invention. Figure 2 The schematic diagram of the structure of the deep hole blind assembly device for the main reducer gear transmission closed cavity provided by the present invention is shown in FIG. Figure 1 and Figure 2 The present invention provides a method for blind assembly of a main reducer gear transmission closed cavity deep hole, comprising: Step 1: Install the external spline adapter sleeve 2 onto the spline inside the closed cavity, and transfer the external spline to the outside of the casing; Step 2: Install the external spline adapter sleeve onto the spline inside the closed cavity, and transfer the external spline to the outside of the casing; Step 3: Install the internal spline simulation sleeve onto the internal spline adapter sleeve on the outside of the casing to form the same internal spline state as the closed cavity; Step 4: Install the external spline simulation sleeve onto the internal spline adapter sleeve on the outside of the casing to form the same external spline state as the closed cavity; Step 5: Eliminate the circumferential backlash of the gear transmission system by loading the inner and outer spline simulation sleeves.

[0022] Step 6: Conduct trial assembly of the closure member and the simulated closed cavity formed on the outside of the receiver, and then conduct formal assembly according to feasible assembly angles.

[0023] The main reducer gear transmission closed cavity deep hole blind assembly process provided by the application requires that the outer spline adapter sleeve is installed on the inner spline of the closed cavity and the outer spline is transferred to the outside of the case; the inner spline adapter sleeve is installed on the outer spline of the closed cavity and the inner spline is transferred to the outside of the case; the inner spline simulation sleeve is installed on the inner spline adapter sleeve outside the case to form the same inner spline state as the closed cavity; the outer spline simulation sleeve is installed on the inner spline adapter sleeve outside the case to form the same outer spline state as the closed cavity; the circumferential side gap of the gear transmission system is eliminated by loading the inner and outer spline simulation sleeves; and the simulation closed cavity formed by the closed part and the outside of the case is subjected to trial assembly, and formal assembly is performed at a feasible assembly angle.

[0024] To realize the main reducer gear transmission closed cavity deep hole blind assembly method, an assembly device for the main reducer gear transmission closed cavity deep hole blind assembly method is further provided in the embodiment of the application. Figure 2 As shown in the figure, the device comprises an inner spline adapter sleeve 1, an outer spline adapter sleeve 2, an inner spline closed cavity simulation sleeve 3, an outer spline closed cavity simulation sleeve 4, a handle 5, and a handle 6.

[0025] The inner spline adapter sleeve 1 and the outer spline adapter sleeve 2 are used to transfer the spline tooth state of the closed cavity inside the case to the outside of the case. Figure 2 As shown in the figure, the inner spline closed cavity simulation sleeve 3 and the outer spline closed cavity simulation sleeve 4 cooperate with the inner spline adapter sleeve 1 and the outer spline adapter sleeve 2 to form a simulation closed cavity consistent with the spline tooth state of the closed cavity inside the case; the brake handle 5 and the force application handle 6 are used to load the gear transmission system and eliminate the tooth side gap; the product spline sleeve is subjected to trial assembly in the simulation closed cavity to determine a feasible assembly angle, and then the product spline sleeve is formally installed in the closed cavity, thereby avoiding the uncertainty of the closed cavity blind assembly and improving the uniform load performance and the visualization of the assembly.

[0026] The main reducer gear transmission closed cavity deep hole blind assembly method provided by the application can improve the visualization degree of the closed cavity blind assembly, obtain a gear transmission assembly system with good uniform load performance, and through the use of the technology, the gear transmission system can form a closed link, the uniform load degree is within 0.04, the assembly efficiency is improved by more than 80%, and the method can effectively improve the assembly quality of the main reducer gear transmission closed cavity deep hole blind assembly.

[0027] The application provides a blind assembly method for a main reducer gear transmission closed cavity deep hole, which comprises the following steps: step one, installing an outer spline adapter sleeve to the inner spline of the closed cavity and adapting the outer spline to the outside of the case; step two, installing an inner spline adapter sleeve to the outer spline of the closed cavity and adapting the inner spline to the outside of the case; step three, installing an inner spline simulation sleeve to the inner spline adapter sleeve outside the case to form the same inner spline state as the closed cavity; step four, installing an outer spline simulation sleeve to the inner spline adapter sleeve outside the case to form the same outer spline state as the closed cavity; step five, eliminating the circumferential side gap of the gear transmission system by loading the inner and outer spline simulation sleeves; and step six, performing trial assembly on the simulation closed cavity formed by the closed part and the outside of the case and performing formal assembly according to the feasible assembly angle. Through twice spline adaptation, the closed cavity at the deep hole inside the case is adapted to the outside of the case, the blind assembly state is converted into a visual assembly state, the tooth side gap of the transmission system is eliminated by the loading device, the load uniformity of the transmission system is ensured, and the method is particularly suitable for the assembly of the main reducer gear transmission closed cavity with a deep hole structure.

[0028] The above is only a specific embodiment of the application, and the application is described in detail. The part not described in detail is a conventional technology. However, the protection scope of the application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered in the protection scope of the application. The protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A deep hole blind assembly device for a main reducer gear transmission closed cavity, characterized by: The device comprises: an inner spline adapter sleeve, an outer spline adapter sleeve, an inner spline closed cavity simulation sleeve, an outer spline closed cavity simulation sleeve, a brake handle and a force-adding handle; The internal spline adapter sleeve is provided with adapter internal splines identical to the internal splines of the spline sleeve at both the upper and lower ends; the lower end of the internal spline adapter sleeve is mounted on the external splines of the gear set; The upper and lower ends of the external spline adapter sleeve are provided with adapter external splines identical to the external splines of the spline sleeve; the lower end of the external spline adapter sleeve is installed on the internal splines of the gear set; The upper and lower ends of the internal spline closed cavity simulation sleeve are provided with simulated internal splines identical to the internal splines of the gear set; the lower end of the internal spline closed cavity simulation sleeve is installed on the upper end of the external spline adapter sleeve; The upper and lower ends of the external spline closed cavity simulation sleeve are provided with simulated external splines identical to the external splines of the gear set; the lower end of the external spline closed cavity simulation sleeve is installed on the upper end of the internal spline adapter sleeve; The brake handle is fixed to the inner spline closed cavity simulation sleeve, and the force adding handle is fixed to the outer spline closed cavity simulation sleeve.

2. The device according to claim 1, characterized in that: An axial limit platform is provided on the inner side of the internal spline of the internal spline adapter sleeve; the upper end surface of the internal spline adapter sleeve is at least 5mm higher than the end surface of the casing.

3. The device according to claim 1, characterized in that: An axial limit platform is provided on the inner side of the external spline of the external spline adapter sleeve; the upper end surface of the external spline adapter sleeve is at least 5mm higher than the end surface of the casing.

4. The device according to claim 1, characterized in that: The inner diameter of the internal spline adapter sleeve and the outer diameter of the external spline adapter sleeve have a clearance fit, and the fit clearance does not exceed 0.5 mm.

5. The device according to claim 1, characterized in that: The brake handles are arranged radially.

6. The device according to claim 1, characterized in that: The boost handle is set axially.

7. A method for blind assembly of a closed cavity deep hole of a main reducer gear transmission, implemented based on the device according to any one of claims 1 to 6, characterized in that: Here are the steps: Step 1: Install the internal spline adapter sleeve onto the external spline of the closed cavity gear set; Step 2: Pass the external spline adapter sleeve through the internal spline adapter sleeve and install it on the internal spline of the closed cavity gear set; Step 3: Install the inner spline closed cavity simulation sleeve onto the upper end of the outer spline adapter sleeve; Step 4: Install the external spline closed cavity simulation sleeve onto the upper end of the internal spline adapter sleeve; Step 5: Fix the outer spline closed cavity simulation sleeve by the brake handle, and turn the force-applying handle clockwise or counterclockwise to drive the inner spline closed cavity simulation sleeve to rotate, and adjust the tooth clearance of the gear set. The tooth clearance between each gear accumulates to zero in a certain direction; Step 6: Adjust the spline sleeve so that it is installed between the inner and spline closed cavity simulation sleeves; Step 7: Mark the angular position of the spline sleeve between the spline sleeve and the casing; Step 8: Remove the assembly device and assemble the spline sleeve according to the marked angular position of the spline sleeve.

8. The method according to claim 7, wherein: In step five, fix the brake handle to the casing to limit the circumferential movement of the brake handle, and rotate the boost handle with a torque of 10N·m~20N·m until it can no longer move.

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