Electric wheel automobile wheel motor planetary gear timing tooth position rapid measuring tool
By designing a fast timing measuring gauge for electric wheel automobile wheel motor planetary gears, the problem of error calibration of timing position in wheel motor planetary gear assembly is solved, and a fast, accurate and safe assembly process is achieved.
Patent Information
- Application Number
- CN202420231156.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-01-31
AI Technical Summary
During the assembly process, the planetary gears of the wheel motor are difficult, time-consuming and safety hazards.
A quick measuring instrument for timing gear for electric wheels, automobile wheels, motors, planetary gear timing gear, including reference sleeves, positioning seats, bolts, reference plates, pointers, detection seats and detection plates, which are fixed through clearance fit and welding to achieve gear timing Quick position determination.
This measuring tool can easily measure the timing position of the wheel motor planetary gear, improve assembly accuracy, simplify operation, eliminate safety hazards, save manpower, and significantly improve assembly efficiency.
Smart Images
Figure CN222505196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheel motor planetary gear timing position detection, in particular to a timing tooth position rapid measurement tool for wheel motor planetary gears of electric wheel vehicles. Background Art
[0002] Wheel motor planetary gears are widely used in mechanical equipment. The position relationship of each tooth of the two gears on the circumference is in an orderly corresponding state. During the assembly process, it is required to be carried out according to the position of the determined timing mark to ensure the successful assembly of the machine. In fact, the timing position of the wheel motor planetary gear factory calibration is often wrong, which makes it difficult to repair and replace the gear of the machine, which will bring time-consuming and fruitless labor to the assembly.
[0003] Here we take the planetary gear of the wheel motor of an electric car as an example for explanation.
[0004] In order to find out the actual timing position of the wheel motor planetary gear, one of the methods used at the assembly site is to use a wire rope to tie the wheel motor planetary gear to be measured and gradually rotate it. During the rotation, it is compared with a wheel motor planetary gear with a correct timing mark, and then the timing mark of the target gear is obtained. This method is very troublesome, there are safety hazards during operation, and the accuracy is not high. In response to this problem, a second method is proposed here, which is to use a measuring tool that can measure the timing of the wheel motor planetary gear to quickly determine the timing position without lifting the gear, eliminating safety hazards. Utility Model Content
[0005] The utility model aims to overcome the deficiencies in the prior art and provide a tool for quickly measuring the timing tooth position of a planetary gear of an electric wheel automobile wheel motor, which has a simple structure, is easy to operate and can shorten the assembly working time.
[0006] In order to achieve the above purpose, the technical solution of the utility model is:
[0007] A tool for quickly measuring the timing tooth position of a planetary gear of an electric wheel automobile wheel motor, characterized in that the tool comprises a reference sleeve, a positioning seat, bolts, a reference plate, a pointer, a detection seat, and a detection plate. The reference sleeve is a cylindrical structure with a central through hole arranged axially, the positioning seat is a square structure with a slot processed on the upper and lower surfaces at one end in the shape of a hanging ear, a through hole drilled at the hanging ear, the reference sleeve and the positioning seat are fixed by welding, the reference plate is a plate structure with two hooks, a through hole drilled at the hooks, and an arc-shaped dial marked on the side, the positioning seat and the reference plate are connected by bolts, the pointer is an arrow-shaped structure, the detection seat is a square structure with a slot processed on the upper and lower surfaces at one end in the shape of a hanging ear, a through hole drilled at the hanging ear, the pointer and the detection seat are fixed by welding, the reference plate and the detection seat are connected by bolts, the detection plate is a square plate structure, and the detection seat and the detection plate are fixed by welding.
[0008] Preferably, the aperture of the central through hole of the reference sleeve 1 matches the shaft diameter of the connecting end of the gear with relatively fewer teeth of the timing position to be measured, and the connection is made by clearance fit.
[0009] Preferably, the ear plates on both sides of the slot of the positioning seat are arranged symmetrically with the axis of the center hole of the reference sleeve 1, and the inner sides of the ear plates on both sides of the slot of the positioning seat 2 are connected with the side surfaces of the reference plate 4 through clearance fit.
[0010] Preferably, the hole diameter of the through hole of the reference plate is matched with the outer diameter of the bolt 3 in a clearance manner.
[0011] Preferably, the center of the arc of the reference plate is consistent with the center line of the hole of the lifting ear of the detection base 6.
[0012] Preferably, the ear plates on both sides of the slot of the detection seat are symmetrically arranged with respect to the axis of the thickness direction of the reference plate 4, and the inner sides of the ear plates on both sides of the slot of the detection seat 6 are connected with the side surfaces of the reference plate 4 through clearance fit.
[0013] Preferably, the welding position of the pointer 5 is at one end of the side of the ear plate on both sides of the slot of the detection base 6, and the arrow of the pointer 5 corresponds to the arc-shaped dial surface of the reference plate 4.
[0014] Preferably, the center line of the detection plate in the thickness direction is consistent with the symmetry line of the slot of the detection seat.
[0015] The beneficial effects of the utility model are as follows: the utility model provides a tool for quickly measuring the timing tooth position of the planetary gear of the wheel motor of an electric wheel automobile, which can conveniently find the timing position of the planetary gear of the wheel motor and improve the assembly accuracy. The method is simple, efficient, has no safety hazards, saves manpower, and has significant effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is the structural principle diagram of the utility model;
[0018] Figure 3 This is a schematic diagram of the installation of the utility model;
[0019] In the figure: 1, reference sleeve, 2, positioning seat, 3, bolt, 4, reference plate, 5, pointer, 6, detection seat, 7, detection plate, 8, gear shaft, 9, small gear, 10, large gear DETAILED DESCRIPTION
[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0021] like Figure 1-3 The shown tool is a rapid measurement tool for the timing tooth position of a planetary gear of an electric wheel automobile motor, characterized in that the tool comprises a reference sleeve 1, a positioning seat 2, a bolt 3, a reference plate 4, a pointer 5, a detection seat 6, and a detection plate 7. The reference sleeve 1 is a cylindrical structure with a central through hole arranged axially, the positioning seat 2 is a square structure with a slot processed on the upper and lower surfaces at one end in the shape of a hanging ear, and a through hole is drilled at the hanging ear. The reference sleeve 1 and the positioning seat 2 are fixed by welding, the reference plate 4 is a plate structure with two hooks, through holes are drilled at the hooks, and arc scales are marked on the side, the positioning seat 2 and the reference plate 4 are connected by bolts 3, the pointer 5 is an arrow-shaped structure, the detection seat 6 is a square structure with a slot processed on the upper and lower surfaces at one end in the shape of a hanging ear, and a through hole is drilled at the hanging ear, the pointer 5 and the detection seat 6 are fixed by welding, the reference plate 4 and the detection seat 6 are connected by bolts 3, the detection plate 7 is a square plate structure, and the detection seat 6 and the detection plate 7 are fixed by welding.
[0022] Preferably, the aperture of the central through hole of the reference sleeve 1 matches the shaft diameter of the connecting end of the gear with relatively fewer teeth of the timing position to be measured, and is connected by a clearance fit. The two sides of the slot of the positioning seat 2 are connected to the reference plate 4 by a clearance fit. The aperture of the through hole of the reference plate 4 matches the outer diameter of the bolt (3) by a clearance fit. The arc-shaped scale plate surface of the reference plate 4 is located between the hook angles, and the center of the arc is consistent with the center line of the hole of the ear of the detection seat (6).
[0023] The reference plates 4 on both sides of the slot of the detection seat 6 are connected by clearance fit. The pointer 5 corresponds to the arc-shaped dial surface of the reference plate 4. The center line of the detection plate 7 in the thickness direction is consistent with the symmetry line of the slot of the detection seat 6.
[0024] The timing position rule of the planetary gears of the wheel motor is that the small gear 9 is in position 1 and the timing mark position of the large gear 10 is 2.
[0025] The working principle of the present invention is to conveniently determine the timing position of the wheel motor planetary gear, and we implement it in the following steps: coaxial positioning installation 1, place the wheel motor planetary gear 10 horizontally, and install the reference sleeve 1 to the upper end of the gear shaft 8; inter-tooth center reference positioning 2, lift one end of the reference plate 4, adjust the circumferential position of the reference sleeve 1 on the gear shaft 8, align the inner side edge of the reference plate 4 and place it in the tooth groove of the pinion 9, and make the inner side edge of the reference plate 4 fit on the tooth surface of the pinion 9; detection position determination 3, lift one end of the detection plate 7, place the inner side edge of the detection plate 7 and fit it on the tooth surface of the large gear 10; indication value reading 4, observe the gear scale mark indicated by the pointer 5 on the reference plate 4, and you can know the sequence of the timing position corresponding to this tooth groove of the measured pinion 9 and this gear position of the large gear 10. value; detection position reading 5, observing that the inner side of the detection plate 7 is placed and pressed against the tooth surface of the large gear 10, and must be in a specific detection point position (4 position contact points: centered at the tooth valley position between two teeth, close to the tooth surface on one side, close to the tooth surface on the other side, centered at the tooth top position of one tooth); timing position calculation 6, combining the detection point position and the indication scale value, through one measurement, it can be determined and given the position where the timing mark of this gear set should be located (that is: the arc distance or the number of teeth from the measurement position in one direction of the determined gear circumference); in order to ensure the accuracy of the timing mark, a re-measurement is then performed at the predetermined timing position. If there is a reading error, the target timing position can be found based on the measurement scale value this time, and finally a re-measurement is performed.
[0026] The above-mentioned implementation mode is an illustration of the present invention, not a limitation of the present invention. It can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The protection scope of the present invention is limited by the attached claims and their equivalents.
Claims
1. A tool for quickly measuring the timing position of planetary gears of electric wheel automobile motors, characterized in that: The measuring tool comprises a reference sleeve (1), a positioning seat (2), a bolt (3), a reference plate (4), a pointer (5), a detection seat (6), and a detection plate (7). The reference sleeve (1) is a cylindrical structure with a central through hole arranged axially. The positioning seat (2) is a cubic structure with a groove processed on the upper and lower surfaces of one end to form a hanging ear shape. A through hole is drilled at the hanging ear. The reference sleeve (1) and the positioning seat (2) are fixed by welding. The reference plate (4) is a plate structure with two hooks arranged. A through hole is drilled at the hooks. An arc-shaped scale plate is marked on the side, the positioning seat (2) and the reference plate (4) are connected by bolts (3), the pointer (5) is an arrow-shaped structure, the detection seat (6) is a square structure, one end of which is processed with slots on the upper and lower surfaces to form a hanging ear shape, and a through hole is drilled at the hanging ear. The pointer (5) and the detection seat (6) are fixed by welding, the reference plate (4) and the detection seat (6) are connected by bolts (3), and the detection plate (7) is a square plate structure, and the detection seat (6) and the detection plate (7) are fixed by welding.
2. The electric wheel automobile wheel motor planetary gear timing position rapid measurement measuring tool according to claim 1 is characterized in that: The aperture of the central through hole of the reference sleeve (1) matches the shaft diameter of the connecting end of the gear with a relatively small number of teeth of the gear to be measured for the timing position, and the connection is made by a clearance fit.
3. The electric wheel automobile wheel motor planetary gear timing position rapid measurement measuring tool according to claim 1 is characterized in that: The through hole of the positioning seat (2) matches the bolt (3), the ear plates on both sides of the slot are symmetrically arranged with respect to the axis of the central hole of the reference sleeve (1), and the inner sides of the ear plates on both sides of the slot of the positioning seat (2) are connected with the side surfaces of the reference plate (4) through clearance fit.
4. The electric wheel automobile wheel motor planetary gear timing position rapid measurement measuring tool according to claim 1 is characterized in that: The reference plate (4) has a through hole at each of the two hook corners, and the diameter of the through hole matches the outer diameter of the bolt (3) in a clearance manner.
5. The electric wheel automobile wheel motor planetary gear timing position rapid measurement measuring tool according to claim 1 is characterized in that: The arc-shaped scale plate surface of the reference plate (4) is located between the hook corners, and the center of the arc is consistent with the center line of the hole of the ear of the detection seat (6).
6. The electric wheel automobile wheel motor planetary gear timing gear position rapid measurement measuring tool according to claim 1, characterized in that: The through hole of the detection seat (6) matches the bolt (3), the ear plates on both sides of the slot are symmetrically arranged with respect to the axis of the thickness direction of the reference plate (4), and the inner sides of the ear plates on both sides of the slot of the detection seat (6) are connected with the side surfaces of the reference plate (4) through clearance fit.
7. The electric wheel automobile wheel motor planetary gear timing position rapid measurement measuring tool according to claim 1, characterized in that: The welding position of the pointer (5) is at one end of the side of the ear plate on both sides of the slot of the detection base (6), and the arrow of the pointer (5) corresponds to the arc-shaped scale plate surface of the reference plate (4).
8. The electric wheel automobile wheel motor planetary gear timing position rapid measurement tool according to claim 1 is characterized in that: The center line of the detection plate (7) in the thickness direction is consistent with the slot symmetry line of the detection seat (6).