CN111828548B - Coaxial centering adjustment device for assembling gear pair of vehicle-mounted shock absorber - Google Patents
Coaxial centering adjustment device for assembling gear pair of vehicle-mounted shock absorber Download PDFInfo
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- CN111828548B CN111828548B CN202010553827.0A CN202010553827A CN111828548B CN 111828548 B CN111828548 B CN 111828548B CN 202010553827 A CN202010553827 A CN 202010553827A CN 111828548 B CN111828548 B CN 111828548B
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- sleeve
- base
- rotor sleeve
- gear pair
- telescopic rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a coaxial centering adjustment device for assembling a gear pair of a vehicle-mounted shock absorber, which comprises a base, a stator sleeve, a rotor sleeve and three groups of telescopic positioning assemblies, wherein three mounting through cavities are formed in the side wall of the base along the circumferential direction; the three groups of telescopic positioning components consist of telescopic rods, rod seats, check rings and springs; the three rod seats are fixedly arranged in the three mounting through cavities one by one in a penetrating way; the telescopic rod is arranged in a telescopic rod installation cavity on the rod seat, and the stator sleeve is coaxially fixed in the base cavity; the rotor sleeve is coaxially sleeved outside the fixed sleeve; a lower rotating matching piece is arranged between the lower end of the rotor sleeve and the lower end of the stator sleeve, the upper end of the stator sleeve is connected with a pressing ring, and an upper rotating matching piece is arranged between the pressing ring and the upper end of the rotor sleeve; the rotor sleeve is connected with the base through penetrating screws; three involute curved surfaces are uniformly distributed on the outer ring of the rotor sleeve and are respectively contacted and matched with the inner ends of the three telescopic rods. The invention simplifies the assembly and adjustment process of the gear pair and improves the assembly and adjustment efficiency and the consistency of the assembly and adjustment result of the gear pair.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, relates to a gear assembly technology, and in particular relates to a coaxial centering adjustment device for assembling a gear pair of a vehicle-mounted shock absorber.
Background
The gear pair is a common important transmission mechanism, has the advantages of compact structure, high mechanical efficiency and good working reliability, and has various structural forms, and different transmission requirements correspond to different structural forms of the gear pair. The gear pair has relatively complex structure and working state, has higher installation requirements, such as coaxial centering requirements of a driving gear, meshing clearance requirements of a driven gear and the driving gear, parallelism requirements of a driven gear rotating shaft and a driving gear rotating shaft and the like, and improper installation can lead the problems of operation vibration and noise of the gear pair to be prominent, and the gear can be enabled to generate fatigue pitting of gear teeth, tooth root cracks, gear teeth or wheel shaft breakage and other failure phenomena under the condition of improper installation for a long time, thereby influencing the transmission efficiency and the service life of the gear pair and further influencing the operation precision and the stability of equipment.
Some inertial navigation equipment can be transported to a working site in a vehicle-mounted transportation mode for measurement and mapping work, and a shock absorber can be arranged on the precision instrument to ensure that the precision instrument is not damaged in the transportation process. The shock absorber used by the precision instrument is various in structural form, and various forms exist in locking and locking of the shock absorber, wherein the locking and locking of the shock absorber are completed through a gear pair driving linear guide rail pair, the shock absorber is compact in structure, small in size, light in weight and convenient to install and carry, and the shock absorber does not need to be detached after being installed with a gyro compass, so that transportation and turnover in a gyro compass operation site are greatly facilitated, and the shock absorber is relatively wide in application.
The gear pair in the damper consists of four gears, including three pinion assemblies and one large gear. In order to ensure the stable operation of the gear pair, the large gear and the shock absorber base have higher coaxiality requirements. At present, in the installation process of the large gear, the positions of the three positioning components are manually adjusted to ensure the coaxiality of the large gear and the base, then the three small gear components are meshed with the small gear components and are installed on the base through screws, finally, the gear pair is manually rotated, the running stability of the large gear is felt empirically, and if the running stability is poor, the installation centering adjustment process is repeated. The assembly mode has higher requirements on assembly staff, is complex in assembly and adjustment process, low in efficiency and poor in assembly and adjustment effect consistency, and is not suitable for batch production assembly and adjustment work.
Disclosure of Invention
The coaxial centering adjustment device for assembling the gear pair of the vehicle-mounted shock absorber aims to overcome the defects of the prior art, and is compact in structure, convenient to operate, capable of simplifying the assembly and adjustment process of the gear pair, and capable of effectively improving the assembly and adjustment efficiency and the consistency of the assembly and adjustment result of the gear pair.
The technical scheme adopted for solving the technical problems is as follows:
a coaxial centering adjustment device for on-vehicle bumper shock absorber gear pair assembly, its characterized in that: the device comprises a base, a stator sleeve, a rotor sleeve and three groups of telescopic positioning components;
the base is provided with a cylindrical cavity structure, the lower end part of the base is provided with a positioning boss coaxial with the cylindrical cavity, and the shape of the positioning boss is matched with the shape of a positioning hole in the center of the shock absorber base; three mounting through cavities which are arranged in a radial mode are uniformly distributed on the side wall of the base along the circumferential direction;
the telescopic positioning assembly consists of a telescopic rod, a rod seat, a check ring and a spring; the three rod seats are fixedly arranged in the three mounting through cavities one by one, the rod seats are provided with telescopic rod mounting cavities which are step cavities, and the transition surfaces of the step holes form spring limiting surfaces; the telescopic rod is movably arranged in the telescopic rod mounting cavity in a penetrating manner along the radial direction, the spring is sleeved on the telescopic rod, the inner end of the spring is in pressing contact with the outer convex check ring arranged on the telescopic rod, and the outer end of the spring is in pressing contact with the spring limiting surface; the check ring is fixedly arranged at the inner end of the rod seat, and the diameter of an inner hole of the check ring is smaller than that of an outer convex check ring on the telescopic rod;
the stator sleeve is coaxially arranged in the cavity of the base and is fixedly connected with the base; the rotor sleeve is coaxially arranged in the base cavity and sleeved outside the fixed sleeve; a lower rotating matching piece is arranged between the lower end of the rotor sleeve and the lower end of the stator sleeve, a pressing ring is detachably connected to the upper end of the stator sleeve, and an upper rotating matching piece is arranged between the pressing ring and the upper end of the rotor sleeve; two arc-shaped connecting long holes are symmetrically formed in the upper end of the rotor sleeve, and the rotor sleeve is fixedly connected with the upper end of the base through screws penetrating into the two arc-shaped connecting long holes; three sections of involute curved surfaces are uniformly distributed on the outer ring of the rotor sleeve along the circumferential direction; the three involute curved surfaces are respectively contacted and matched with the inner ends of the three telescopic rods.
Further: the upper rotating matching piece and the lower rotating matching piece are composed of an upper ball seat, a lower ball seat and balls; an upper ball groove is formed in the lower end of the upper ball seat, a lower ball groove is formed in the upper end of the lower ball seat, the upper ball groove and the lower ball groove are aligned, and the balls are arranged in the upper ball groove and the lower ball groove; the upper ball seat of the upper rotating matching piece is embedded and fixed in a mounting groove arranged on the pressing ring, and the lower ball seat of the upper rotating matching piece is embedded and fixed in a mounting groove arranged at the upper end of the rotor sleeve; the upper ball seat of the lower rotating matching piece is embedded and fixed in the mounting groove arranged at the lower end of the rotor sleeve, and the lower ball seat of the lower rotating matching piece is embedded and fixed in the mounting groove arranged at the lower end of the stator sleeve.
Further: the telescopic rod is of a rod body structure with spherical surfaces at two ends.
Further: a plurality of lightening holes are uniformly distributed on the side wall of the stator sleeve along the circumferential direction, and lightening holes are arranged on the side wall of the base at positions between adjacent installation through cavities.
The invention has the advantages and positive effects that:
1. the base lower extreme of this device sets up the location boss, and when installing the gear pair, location boss and bumper shock absorber base center locating hole plug-in fitting have realized the alignment of this device center and bumper shock absorber base center, provide the location basis for the installation of gear pair. The base accessible locking nail is connected with the bumper shock absorber base, simple to operate.
2. The rotor sleeve outer ring of the device is provided with three involute curved surfaces which are uniformly distributed and are respectively in non-fixed contact fit with the inner ends of the three telescopic rods, the rotor sleeve is rotated to control the synchronous telescoping of the three telescopic rods, so that the three telescopic rods simultaneously extend out to be in contact with the inner ring of the large gear, three-point centering operation can be completed, and after the rotor sleeve is fixed, the assembly of the positioning assembly and the pinion assembly is completed, so that the assembly and adjustment process of the gear pair is simplified, the assembly and adjustment efficiency is effectively improved, the consistency of the assembly and adjustment result of the gear pair is ensured, and the device is particularly suitable for mass production assembly and adjustment work.
3. The device has compact integral installation structure, and when the gear pair is installed, the coaxial centering installation of the gear pair can be completed only by rotating and adjusting the rotor sleeve, so that the device has the advantage of convenient operation.
Drawings
FIG. 1 is a schematic plan view in half section of the present invention;
FIG. 2 is a schematic view of the telescoping positioning assembly of FIG. 1;
FIG. 3 is a top partial cutaway schematic view of FIG. 1;
FIG. 4 is a schematic perspective view of the present invention;
FIG. 5 is a schematic view of the rotor sleeve of the present invention;
FIG. 6 is a state of use reference diagram of the present invention;
fig. 7 is a top view of fig. 6.
Detailed Description
The invention will now be further described by way of the following examples, which are intended to be illustrative and not limiting, and are not intended to limit the scope of the invention.
A coaxial centering adjustment device for assembling a gear pair of a vehicle-mounted shock absorber, please refer to fig. 1-7, which comprises the following steps: the device comprises a base 1, a stator sleeve 6, a rotor sleeve 4 and three groups of telescopic positioning assemblies 2;
the base has a cylindrical cavity structure, and the overall shape of the base is preferably an annular structure. The lower end of the base is provided with a positioning boss which is arranged coaxially with the cylindrical cavity, and the shape of the positioning boss is matched with the shape of a positioning hole in the center of the shock absorber base. Three mounting through cavities which are arranged in a radial mode are uniformly distributed on the side wall of the base along the circumferential direction.
The telescopic positioning assembly consists of a telescopic rod 2.2, a rod seat 2.1, a retainer ring 2.5 and a spring 2.3. The three rod seats are fixedly arranged in the three mounting through cavities one by one. Specifically, the outer end of the telescopic rod installation cavity is provided with a connecting flange part, and the connecting flange part is tightly pressed on the outer end surface of the installation through cavity and is fixedly connected with the base through a screw. The rod seat is provided with a telescopic rod installation cavity, the telescopic rod installation cavity is a stepped hole cavity, and a transition surface of the stepped hole forms a spring limiting surface. The telescopic rod is movably arranged in the telescopic rod mounting cavity in a penetrating manner along the radial direction. The spring is sleeved on the telescopic rod, the telescopic rod is integrally provided with or connected with a convex retainer ring 2.4, the inner end of the spring is pressed on the convex retainer ring, and the outer end of the spring is in pressing contact with the spring limiting surface; the check ring is fixedly arranged at the inner end of the rod seat, and the diameter of an inner hole of the check ring is smaller than that of an outer convex check ring on the telescopic rod. The retainer ring plays an internal limiting role on the telescopic rod. The telescopic positioning assembly adopts the structure, and when external force acts on the inner end of the telescopic rod, the telescopic rod stretches out; when the external force is zero, the telescopic rod retracts under the action of the elastic force of the spring;
the stator sleeve is coaxially arranged in the cavity of the base, and the lower end of the stator sleeve and the bottom of the base are connected with screws so as to realize the fixed connection of the stator sleeve and the base. The rotor sleeve is coaxially arranged in the base cavity and sleeved outside the fixed sleeve. A lower rotating matching piece is arranged between the lower end of the rotor sleeve and the lower end of the stator sleeve, a pressing ring 5 is detachably connected to the upper end of the stator sleeve, and an upper rotating matching piece is arranged between the pressing ring and the upper end of the rotor sleeve. Two arc-shaped connecting long holes 4.1 are symmetrically arranged at the upper end of the rotor sleeve, and the rotor sleeve is fixedly connected with the upper end of the base through screws 3 penetrating into the two arc-shaped connecting long holes; three sections of involute curved surfaces 4.2 are uniformly distributed on the outer ring of the rotor sleeve along the circumferential direction; the three involute curved surfaces are respectively contacted and matched with the inner ends of the three telescopic rods. When external torque acts on the rotor sleeve, the rotation of the rotor sleeve is changed into the telescopic action of the telescopic rod through the transmission of the involute curved surface.
In the above structure, further: the upper rotating matching piece and the lower rotating matching piece are composed of an upper ball seat 7, a lower ball seat 9 and balls 8; an upper ball groove is formed in the lower end of the upper ball seat, a lower ball groove is formed in the upper end of the lower ball seat, the upper ball groove and the lower ball groove are aligned, and the balls are arranged in the upper ball groove and the lower ball groove; wherein the upper ball seat of the upper rotating fitting piece is embedded and adhered and fixed in the mounting groove arranged on the pressing ring, and the lower ball seat of the upper rotating fitting piece is embedded and adhered and fixed in the mounting groove arranged at the upper end of the rotor sleeve; the upper ball seat of the lower rotating matching piece is embedded and adhered and fixed in the mounting groove arranged at the lower end of the rotor sleeve, and the lower ball seat of the lower rotating matching piece is embedded and adhered and fixed in the mounting groove arranged at the lower end of the stator sleeve. The upper rotating matching piece and the lower rotating matching piece adopt the preferable structure, can replace a bearing to achieve the purpose of relative rotation, avoid the complicacy of the structure and lead the whole structure of the device to be compact.
In the above structure, further: the telescopic rod is preferably a rod body structure with spherical surfaces at two ends, so that the inner end of the telescopic rod is in point contact with the corresponding involute curved surface. The consistency of the telescopic displacement of the three telescopic rods under the action of the corresponding involute curved surfaces is ensured.
In the above structure, further: a plurality of lightening holes 6.1 are uniformly distributed on the side wall of the stator sleeve along the circumferential direction, and lightening holes 1.1 are arranged on the side wall of the base at positions between adjacent installation through cavities. The design of the lightening holes enables the device to achieve the purpose of lightening design.
The working principle of the coaxial centering adjustment device is as follows:
referring to fig. 6 and 7, first, three positioning assemblies 104 and three pinion assemblies 103 are mounted on the base by screws, but not fixed, at this time, the positioning assemblies and the pinion assemblies can be adjusted along the radial direction of the base, the positioning boss at the lower end of the base of the device is inserted into the central positioning hole on the base 102 in an aligned manner, and the device is fixed on the base by screws 200; then, the large gear 101 is placed at the installation position, three positioning components are radially adjusted, and coarse positioning and coaxial coarse centering adjustment are carried out on the large gear; then, the rotor sleeve is manually rotated, three telescopic rods extend out and are contacted with the inner ring of the large gear, three-point coaxial centering adjustment operation is carried out, coaxial fine centering adjustment of the large gear is completed at the moment, and the rotor sleeve is fixed through screws; then, radially moving the three positioning assemblies to contact the large gear and fix the large gear, so as to finish the precise positioning of the large gear; and then radially moving the three pinion assemblies to be meshed with the large gear and fixing the three pinion assemblies, so as to complete the assembly of the gear pair.
After the gear pair of the shock absorber is assembled and adjusted, the bolts connecting the base and the device are loosened, and the device is disassembled, so that the coaxial centering and adjusting work of the gear pair of the shock absorber is completed.
Although the embodiments and figures of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.
Claims (4)
1. A coaxial centering adjustment device for on-vehicle bumper shock absorber gear pair assembly, its characterized in that: the device comprises a base, a stator sleeve, a rotor sleeve and three groups of telescopic positioning components;
the base is provided with a cylindrical cavity structure, the lower end part of the base is provided with a positioning boss coaxial with the cylindrical cavity, and the shape of the positioning boss is matched with the shape of a positioning hole in the center of the shock absorber base; three mounting through cavities which are arranged in a radial mode are uniformly distributed on the side wall of the base along the circumferential direction;
the telescopic positioning assembly consists of a telescopic rod, a rod seat, a check ring and a spring; the three rod seats are fixedly arranged in the three mounting through cavities one by one, the rod seats are provided with telescopic rod mounting cavities which are step cavities, and the transition surfaces of the step holes form spring limiting surfaces; the telescopic rod is movably arranged in the telescopic rod mounting cavity in a penetrating manner along the radial direction, the spring is sleeved on the telescopic rod, the inner end of the spring is in pressing contact with the outer convex check ring arranged on the telescopic rod, and the outer end of the spring is in pressing contact with the spring limiting surface; the check ring is fixedly arranged at the inner end of the rod seat, and the diameter of an inner hole of the check ring is smaller than that of an outer convex check ring on the telescopic rod;
the stator sleeve is coaxially arranged in the cavity of the base and is fixedly connected with the base; the rotor sleeve is coaxially arranged in the base cavity and sleeved outside the fixed sleeve; a lower rotating matching piece is arranged between the lower end of the rotor sleeve and the lower end of the stator sleeve, a pressing ring is detachably connected to the upper end of the stator sleeve, and an upper rotating matching piece is arranged between the pressing ring and the upper end of the rotor sleeve; two arc-shaped connecting long holes are symmetrically formed in the upper end of the rotor sleeve, and the rotor sleeve is fixedly connected with the upper end of the base through screws penetrating into the two arc-shaped connecting long holes; three sections of involute curved surfaces are uniformly distributed on the outer ring of the rotor sleeve along the circumferential direction; the three involute curved surfaces are respectively contacted and matched with the inner ends of the three telescopic rods.
2. The coaxial centering device for vehicle-mounted damper gear pair assembly of claim 1, wherein: the upper rotating matching piece and the lower rotating matching piece are composed of an upper ball seat, a lower ball seat and balls; an upper ball groove is formed in the lower end of the upper ball seat, a lower ball groove is formed in the upper end of the lower ball seat, the upper ball groove and the lower ball groove are aligned, and the balls are arranged in the upper ball groove and the lower ball groove; the upper ball seat of the upper rotating matching piece is embedded and fixed in a mounting groove arranged on the pressing ring, and the lower ball seat of the upper rotating matching piece is embedded and fixed in a mounting groove arranged at the upper end of the rotor sleeve; the upper ball seat of the lower rotating matching piece is embedded and fixed in the mounting groove arranged at the lower end of the rotor sleeve, and the lower ball seat of the lower rotating matching piece is embedded and fixed in the mounting groove arranged at the lower end of the stator sleeve.
3. The coaxial centering device for vehicle-mounted damper gear pair assembly of claim 1, wherein: the telescopic rod is of a rod body structure with spherical surfaces at two ends.
4. The coaxial centering device for vehicle-mounted damper gear pair assembly of claim 1, wherein: a plurality of lightening holes are uniformly distributed on the side wall of the stator sleeve along the circumferential direction, and lightening holes are arranged on the side wall of the base at positions between adjacent installation through cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553827.0A CN111828548B (en) | 2020-06-17 | 2020-06-17 | Coaxial centering adjustment device for assembling gear pair of vehicle-mounted shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010553827.0A CN111828548B (en) | 2020-06-17 | 2020-06-17 | Coaxial centering adjustment device for assembling gear pair of vehicle-mounted shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN111828548A CN111828548A (en) | 2020-10-27 |
| CN111828548B true CN111828548B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010553827.0A Active CN111828548B (en) | 2020-06-17 | 2020-06-17 | Coaxial centering adjustment device for assembling gear pair of vehicle-mounted shock absorber |
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| CN109443172A (en) * | 2018-12-26 | 2019-03-08 | 中国航发中传机械有限公司 | Bevel gear pair circumference backlash measuring device |
| CN209526639U (en) * | 2019-04-30 | 2019-10-22 | 成都金士力科技有限公司 | It is a kind of for positioning the tooling of high/low temperature vacuum stepper motor bearing |
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| EP2942437A1 (en) * | 2014-05-08 | 2015-11-11 | Siemens Aktiengesellschaft | Jack-up vessel gear pair |
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| DE19860232A1 (en) * | 1998-12-24 | 2000-06-29 | Sram De Gmbh | Multispeed hub for bicycle has planetary gears arranged symmetrically in planet carrier and disposed at 120 degrees to each other |
| JP2006090466A (en) * | 2004-09-24 | 2006-04-06 | Fuji Heavy Ind Ltd | Conical shape involute gear pair |
| CN101363526A (en) * | 2008-09-25 | 2009-02-11 | 重庆大学 | Damping device for dynamoelectric precision transmission system |
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|---|---|
| CN111828548A (en) | 2020-10-27 |
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