CN114878158A - Worm and gear small assembly running-in test device with variable load and method - Google Patents
Worm and gear small assembly running-in test device with variable load and method Download PDFInfo
- Publication number
- CN114878158A CN114878158A CN202110161181.6A CN202110161181A CN114878158A CN 114878158 A CN114878158 A CN 114878158A CN 202110161181 A CN202110161181 A CN 202110161181A CN 114878158 A CN114878158 A CN 114878158A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- worm
- adjusting
- worm wheel
- worm gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
-
- 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
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- 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
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
- F16H2057/123—Arrangements for adjusting or for taking-up backlash not provided for elsewhere using electric control means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a worm gear small assembly running-in test device with variable load, which comprises a support frame, a workpiece conveying mechanism, a workpiece feeding and discharging mechanism, a regulating and testing seat, a regulating and testing mechanism and a test mechanism, wherein the workpiece conveying mechanism is arranged on one side of the regulating and testing seat and used for conveying workpieces; the adjusting and measuring seat is used for fixing a workpiece; the workpiece feeding and discharging mechanism is arranged above the adjusting and measuring seat and used for feeding and discharging workpieces; the debugging mechanism is arranged on the other side of the debugging seat and used for loosening and tightening an adjusting screw of the workpiece for debugging; the testing mechanism comprises a worm driving mechanism and a worm wheel driving mechanism, the worm driving mechanism is used for applying load to the worm end of the workpiece, and the worm wheel driving mechanism is used for driving the worm wheel of the workpiece to rotate and measuring the friction torque at the worm wheel end. The invention also discloses a corresponding running-in test method. The invention can adjust the screw to adjust the gap between the worm wheel and the worm in the gearbox and test whether the friction torque at the worm wheel end meets the specified requirements in real time.
Description
Technical Field
The invention relates to an assembly test technology of a servo unit, in particular to a running-in test device and method for a worm and gear small assembly with variable load.
Background
As shown in fig. 1 to 2, after the worm and worm wheel sub-assembly is assembled to the servo housing 1, a running-in and torque test is required, the gap between the worm wheel 3 and the worm 4 is adjusted by tightening the adjusting screw 2, a load is applied to the worm end 41 to run in, and the friction torque of the worm wheel end 31 is required to meet a specified requirement. The 5 in figure 1 is a connecting sleeve.
The friction torque testing station of the gear box of the servo unit of the existing assembly line can only be used for friction torque testing of static running-in of workpieces, and cannot meet the technological requirements of new products of automatic adjustment of screws, running-in with loads and friction torque testing.
Disclosure of Invention
In order to solve the above problems in the prior art, the invention provides a small worm and gear assembly running-in test device with variable load and a method thereof, which can adjust a screw to adjust a gap between a worm and a gear in a gearbox and test whether the friction torque of a worm gear end meets the specified requirements in real time.
On one hand, the running-in test device for the worm and gear small assembly with the variable load has the following specific structure:
the device comprises a support frame, a workpiece conveying mechanism, a workpiece feeding and discharging mechanism, a regulating and testing seat, a regulating and testing mechanism and a testing mechanism, wherein the workpiece conveying mechanism is arranged on the support frame and is used for conveying workpieces; the adjusting and measuring seat is used for fixing a workpiece; the workpiece feeding and discharging mechanism is arranged above the adjusting and measuring seat and used for feeding and discharging workpieces; the debugging mechanism is arranged on the other side of the debugging seat and used for loosening and tightening an adjusting screw of the workpiece for debugging; the testing mechanism comprises a worm driving mechanism and a worm wheel driving mechanism, the worm driving mechanism is used for applying load to the worm end of the workpiece, and the worm wheel driving mechanism is used for driving the worm wheel of the workpiece to rotate and measuring the friction torque at the worm wheel end.
The debugging mechanism comprises a debugging moving cylinder, a debugging servo driving motor and a gun head, the debugging moving cylinder drives the debugging servo driving motor and the gun head to move to an adjusting screw position of the workpiece, and the debugging servo driving motor drives the gun head to screw the adjusting screw of the workpiece.
The worm gear driving mechanism comprises a worm gear servo driving motor, an angle encoder, a worm gear torque sensor and a worm gear driving sleeve which are sequentially connected, the worm gear driving sleeve is connected with a worm gear of a workpiece, the worm gear servo driving motor drives the workpiece worm gear to rotate, the test angle is recorded in real time through the angle encoder, and the worm gear torque sensor measures the worm gear end friction torque.
The worm driving mechanism comprises a testing moving cylinder, a worm servo driving motor, a worm torque sensor and a worm driving sleeve, the worm driving sleeve is driven by the testing moving cylinder to be connected with the worm end of a workpiece, the worm driving sleeve is driven by the worm servo driving motor to apply a load, and the worm torque sensor is used for measuring the load moment of the worm rod end.
The adjusting and measuring seat comprises a workpiece positioning table top, a workpiece supporting and positioning cylinder and a workpiece positioning and overturning cylinder, the workpiece positioning table top is used for bearing a workpiece, a workpiece positioning reference block is arranged on the workpiece positioning table top, the workpiece supporting and positioning cylinder is used for fixing the workpiece on the workpiece positioning reference block, and the workpiece positioning and overturning cylinder is used for pressing the workpiece at a test position.
The adjusting and measuring seat further comprises a supporting table surface arranged below the workpiece positioning table surface, a workpiece up-and-down positioning cylinder and an up-and-down mechanism locking cylinder which are connected with the workpiece positioning table surface are arranged on the supporting table surface, the workpiece up-and-down positioning cylinder drives the workpiece positioning table surface to move downwards to enable the worm wheel end of the workpiece to be connected with a worm wheel driving sleeve arranged on the supporting table surface, and the up-and-down mechanism locking cylinder locks the up-and-down position of the workpiece positioning table surface.
The workpiece conveying mechanism comprises a conveying track and a tray which is arranged on the conveying track and used for conveying workpieces.
The workpiece loading and unloading mechanism comprises a horizontal moving mechanism, a vertical lifting mechanism and a workpiece clamping mechanism, wherein the workpiece clamping mechanism is controlled by the vertical lifting mechanism to lift, and the horizontal moving mechanism is used for switching and moving between the workpiece conveying mechanism and the adjusting and measuring seat so as to grab and release workpieces.
In another aspect, the testing method of the worm and gear small assembly running-in testing device with the variable load comprises the following steps:
s1. the workpiece on the workpiece conveying mechanism is grabbed and placed on the adjusting seat and positioned by the workpiece clamping mechanism of the workpiece loading and unloading mechanism;
s2, a worm wheel servo driving motor drives a worm wheel of the workpiece to start rotating, and meanwhile, a worm wheel torque sensor measures the worm wheel end friction torque of the workpiece in an initial state in real time;
s3. the adjusting mechanism is used for adjusting the moving cylinder to move the gun head 54 and the adjusting servo drive motor drives the gun head to tighten the adjusting screw, so that the adjusting screw contacts with the connecting sleeve in the gear box;
s4. measuring the friction torque of worm gear end in real time by worm gear torque sensor;
s5. when the friction torque of the worm gear end reaches the requirement, stopping screwing the screw, and completing the debugging.
Further comprising the steps of:
s6. moving the worm driving sleeve to the worm rod end of the workpiece and connecting with the worm driving sleeve through the testing moving cylinder of the worm driving mechanism;
s7. the worm servo drive motor applies the load corresponding to the requirement according to the product characteristic, and detects the friction torque of the worm rod end through the worm torque sensor to realize the full closed loop control, and the worm servo drive motor can apply any load below the highest set value;
s8. the worm wheel servo drive motor drives the worm wheel of the workpiece to rotate, and the worm wheel torque sensor measures whether the friction torque of the worm wheel end of the workpiece after applying load meets the requirement, so as to realize the dynamic running-in test of variable load.
The running-in test device and the running-in test method for the worm and gear small assembly with the variable load have the following beneficial effects that:
adjusting the clearance between a worm wheel and a worm in the gearbox by screwing or unscrewing an adjusting screw through a debugging servo driving motor of a debugging mechanism, and testing whether the friction torque at the worm wheel end meets the specified requirement or not in real time; after the screw is adjusted to a required position, a load with required torque can be applied to the worm end through the worm servo driving motor to perform running-in test; after the running-in test is finished, the adjusting screw is unscrewed according to the requirement, and whether the friction torque of the worm wheel end meets the specified requirement is tested. Meanwhile, running-in tests with different load requirements can be applied according to the requirements of different product characteristics.
Drawings
FIG. 1 is a schematic cross-sectional view of a prior art servo housing assembly worm and worm gear sub-assembly;
FIG. 2 is a perspective view of a prior art servo housing assembly worm and worm gear sub-assembly;
fig. 3 is a perspective view of a running-in test device of the present invention;
FIGS. 4a and 4b are perspective views of two different visual angles of the adjusting base according to the present invention;
FIG. 5 is a block diagram of a debugging mechanism of the present invention;
FIG. 6 is a block diagram of the worm drive mechanism of the present invention;
FIG. 7 is a schematic view of the connection of the worm drive sleeve of the present invention to the worm end of a workpiece;
fig. 8 is a structural view of the worm drive mechanism of the present invention.
Detailed Description
The invention further describes a worm and gear small assembly running-in test device with variable load with reference to the attached drawings and embodiments.
As shown in fig. 3, the testing apparatus specifically includes a supporting frame 10, a workpiece conveying mechanism 20, a workpiece loading and unloading mechanism 30, a testing seat 40, a debugging mechanism 50, a testing mechanism, etc. which are respectively disposed on the supporting frame 10, wherein:
the workpiece conveying mechanism 20 is disposed on one side of the adjusting seat 40 for conveying workpieces, and specifically includes a conveying rail 21 and a tray 22 disposed on the conveying rail 21 for conveying workpieces.
The workpiece loading and unloading mechanism 30 is arranged above the adjusting seat 40 and used for loading and unloading workpieces, and specifically comprises a horizontal moving mechanism 31, a vertical lifting mechanism 32 and a workpiece clamping mechanism 33, wherein the workpiece clamping mechanism 33 is controlled to lift by the vertical lifting mechanism 32, and is driven by the horizontal moving mechanism 31 to switch between the workpiece conveying mechanism 20 and the adjusting seat 40 so as to grab and place the workpieces.
The adjusting base 40 is used for fixing a workpiece, and as shown in fig. 4a and 4b, includes a workpiece positioning table 41, and a workpiece positioning reference block 42 is disposed on the workpiece positioning table 41. Since a load is applied to the worm end (the transmission ratio of the gear box is about 1: 20) during the dynamic running-in test process, and the friction torque of the worm end is large, an additional workpiece supporting and locking mechanism is required to ensure that the workpiece is reliably fixed during the test process. Therefore, the adjusting and testing seat 40 further comprises a workpiece supporting and positioning cylinder 43 and a workpiece positioning and overturning cylinder 44, wherein the workpiece positioning table 41 is used for bearing the workpiece, the workpiece supporting and positioning cylinder 43 is used for pushing the workpiece forwards by extending out and is fixed on the workpiece positioning reference block 42, and the workpiece positioning and overturning cylinder 44 is used for pressing the workpiece on the testing position downwards by the overturning cylinder 44. The adjusting seat 40 further comprises a supporting table 45 arranged below the workpiece positioning table 41, a workpiece up-and-down positioning cylinder 46 connected with the workpiece positioning table 41 is arranged on the supporting table 45, and the workpiece up-and-down positioning cylinder 46 drives the workpiece positioning table 41 to move downwards to enable the worm gear end of the workpiece to be connected with a worm gear driving sleeve arranged on the supporting table 45. In addition, an up-down mechanism locking cylinder 47 is arranged below the workpiece positioning table surface 41, and when the workpiece up-down positioning cylinder 46 moves downwards to a proper position, the up-down mechanism locking cylinder 47 extends into a locking hole 48 arranged at a corresponding position at the bottom of the workpiece positioning table surface 41 to lock the workpiece positioning table surface 41 at a workpiece working position, so that up-down movement in a test process is prevented, and workpiece positioning is finally completed.
The debugging mechanism 50 is arranged on the other side of the debugging seat 40 and used for loosening and tightening the adjusting screw of the workpiece for debugging. As shown in fig. 5, the adjusting mechanism 50 specifically includes an adjusting moving cylinder 51, an adjusting servo driving motor 52, a safety clutch 53a (similar to the worm wheel driving mechanism in function), and a gun head, the adjusting moving cylinder 51 drives the adjusting servo driving motor 52 and the gun head 54 to move to the position of the adjusting screw of the workpiece, the adjusting servo driving motor 52 drives the gun head 54 to screw the adjusting screw of the workpiece, and the adjusting screw can be screwed or unscrewed according to the adjusting requirement.
The testing mechanism comprises a worm driving mechanism 70 and a worm wheel driving mechanism 60, wherein the worm driving mechanism 70 is used for applying load on the worm end of the workpiece, and the worm wheel driving mechanism 60 is used for driving the worm wheel of the workpiece to rotate and measuring the friction torque of the worm wheel end.
As shown in fig. 6 and 7, the worm wheel driving mechanism 60 specifically includes a worm wheel servo driving motor 61, a motor gearbox 62, an angle encoder 63, a safety clutch 53b, a worm wheel torque sensor 64, and a worm wheel driving sleeve 65, which are connected in sequence, and connected to the worm wheel end 31 of the workpiece above the worm wheel servo driving sleeve 65 through the worm wheel servo driving motor 61, and used for driving the worm wheel of the workpiece to rotate, recording the test angle in real time through the angle encoder 63, and measuring the friction torque at the worm wheel end through the worm wheel torque sensor 64. The worm gear torque sensor 64 can adopt a double-range worm gear torque sensor 64, a low range is activated to record friction torque during static test, and a high range is activated to record friction torque during dynamic test; the worm gear driving sleeve 65 adopts a gear-shaped profiling tool, so that gears can be better meshed, and the influence of external force interference on a test result in the test process is avoided; the safety clutch 53b is used for overload protection, and if the friction torque exceeds 300Nm, the protection is automatically triggered to prevent the mechanical structure from being damaged.
As shown in fig. 8, the worm driving mechanism 70 includes a test moving cylinder 71, a worm servo driving motor 72, a worm torque sensor 73, and a worm driving sleeve 74, the worm driving sleeve 74 is driven by the test moving cylinder 71 to connect with the worm end of the workpiece and is driven by the worm servo driving motor 72 to apply a load, and the worm torque sensor 73 is used for measuring a load moment at the worm rod end.
The testing method of the running-in testing device for the worm and gear small assembly with the variable load comprises the following steps:
s1. the workpiece on the workpiece conveying mechanism 20 is grabbed and placed on the adjusting and measuring seat 40 by the workpiece clamping mechanism 33 of the workpiece loading and unloading mechanism 30 and is positioned;
s2, the worm wheel servo driving motor 61 drives the worm wheel of the workpiece to start rotating, and meanwhile, the worm wheel torque sensor 64 measures the worm wheel end friction torque of the workpiece in the initial state in real time;
s3., the gun head 54 is moved by the adjusting moving cylinder 51 of the adjusting mechanism 50 and the adjusting servo drive motor 52 drives the gun head 54 to tighten the adjusting screw, so that the adjusting screw contacts with the connecting sleeve in the gearbox;
s4. real-time measuring the friction torque of worm gear end by the worm gear torque sensor 64;
s5. when the friction torque of the worm gear end reaches the requirement, stopping screwing the screw, and completing the debugging.
Further comprising the steps of:
s6. moving the worm driving sleeve to the worm rod end of the workpiece and connecting with the worm driving sleeve through the testing moving cylinder 71 of the worm driving mechanism;
s7. the worm servo drive motor 72 applies the load corresponding to the requirement according to the product characteristic, and the friction torque of the worm rod end is detected by the worm torque sensor 73 to realize the full closed loop control, and the worm servo drive motor 72 can apply any load below the highest set value;
s8. the worm wheel servo drive motor 61 drives the worm wheel of the workpiece to rotate (i.e. dynamic running in), and the worm wheel torque sensor 64 measures whether the friction torque of the worm wheel end of the workpiece after the load is applied meets the requirement, so as to realize the dynamic running in test of variable load.
Of course, after the dynamic running-in test is completed, step s9. may be performed to test whether the worm gear end friction torque meets the specified requirements by loosening the adjusting screw, or loosening the adjusting screw to a proper position as required.
In summary, by adopting the running-in test device and method for the worm and gear small assembly with the variable load, the new test process requirements can be met by a relatively compact mechanical design, and certain flexibility is reserved to adapt to different product characteristic requirements.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (10)
1. The utility model provides a take little assembly running-in testing arrangement of variable load's worm gear which characterized in that: the device comprises a support frame, a workpiece conveying mechanism, a workpiece feeding and discharging mechanism, a regulating and testing seat, a regulating and testing mechanism and a testing mechanism, wherein the workpiece conveying mechanism is arranged on the support frame and is used for conveying workpieces; the adjusting and measuring seat is used for fixing a workpiece; the workpiece feeding and discharging mechanism is arranged above the adjusting and measuring seat and used for feeding and discharging workpieces; the debugging mechanism is arranged on the other side of the debugging seat and used for loosening and tightening an adjusting screw of the workpiece for debugging; the testing mechanism comprises a worm driving mechanism and a worm wheel driving mechanism, the worm driving mechanism is used for applying load to the worm end of the workpiece, and the worm wheel driving mechanism is used for driving the worm wheel of the workpiece to rotate and measuring the friction torque at the worm wheel end.
2. The worm gear small assembly running-in test device with variable load of claim 1, wherein: the debugging mechanism comprises a debugging moving cylinder, a debugging servo driving motor and a gun head, the debugging moving cylinder drives the debugging servo driving motor and the gun head to move to an adjusting screw position of the workpiece, and the debugging servo driving motor drives the gun head to screw the adjusting screw of the workpiece.
3. The worm gear small assembly running-in test device with variable load of claim 1, wherein: the worm gear driving mechanism comprises a worm gear servo driving motor, an angle encoder, a worm gear torque sensor and a worm gear driving sleeve which are sequentially connected, the worm gear driving sleeve is connected with a worm gear of a workpiece, the worm gear servo driving motor drives the workpiece worm gear to rotate, the test angle is recorded in real time through the angle encoder, and the worm gear torque sensor measures the worm gear end friction torque.
4. The worm gear small assembly running-in test device with variable load of claim 1, wherein: the worm driving mechanism comprises a testing moving cylinder, a worm servo driving motor, a worm torque sensor and a worm driving sleeve, the worm driving sleeve is driven by the testing moving cylinder to be connected with the worm end of a workpiece, the worm driving sleeve is driven by the worm servo driving motor to apply a load, and the worm torque sensor is used for measuring the load moment of the worm rod end.
5. A worm gear small assembly running-in test device with variable load as claimed in claim 3, characterized in that: the adjusting and measuring seat comprises a workpiece positioning table top, a workpiece supporting and positioning cylinder and a workpiece positioning and overturning cylinder, the workpiece positioning table top is used for bearing a workpiece, a workpiece positioning reference block is arranged on the workpiece positioning table top, the workpiece supporting and positioning cylinder is used for fixing the workpiece on the workpiece positioning reference block, and the workpiece positioning and overturning cylinder is used for pressing the workpiece at a test position.
6. The worm and gear small assembly running-in test device with variable load of claim 5, wherein: the adjusting and measuring seat further comprises a supporting table surface arranged below the workpiece positioning table surface, a workpiece up-and-down positioning cylinder and an up-and-down mechanism locking cylinder which are connected with the workpiece positioning table surface are arranged on the supporting table surface, the workpiece up-and-down positioning cylinder drives the workpiece positioning table surface to move downwards to enable the worm wheel end of the workpiece to be connected with a worm wheel driving sleeve arranged on the supporting table surface, and the up-and-down mechanism locking cylinder locks the up-and-down position of the workpiece positioning table surface.
7. The worm gear small assembly running-in test device with variable load of claim 1, wherein: the workpiece conveying mechanism comprises a conveying track and a tray which is arranged on the conveying track and used for conveying workpieces.
8. The worm gear small assembly running-in test device with the variable load as claimed in claim 1, characterized in that: the workpiece loading and unloading mechanism comprises a horizontal moving mechanism, a vertical lifting mechanism and a workpiece clamping mechanism, wherein the workpiece clamping mechanism is controlled by the vertical lifting mechanism to lift, and the horizontal moving mechanism is used for switching and moving between the workpiece conveying mechanism and the adjusting and measuring seat so as to grab and release workpieces.
9. The test method of the running-in test device for the worm and gear small assembly with the variable load as claimed in any one of claims 1 to 8, characterized by comprising the following steps:
s1. the workpiece on the workpiece conveying mechanism is grabbed and placed on the adjusting seat and positioned by the workpiece clamping mechanism of the workpiece loading and unloading mechanism;
s2, a worm wheel servo driving motor drives a worm wheel of the workpiece to start rotating, and meanwhile, a worm wheel torque sensor measures the worm wheel end friction torque of the workpiece in an initial state in real time;
s3. the adjusting mechanism is used for adjusting the moving cylinder to move the gun head 54 and the adjusting servo drive motor drives the gun head to tighten the adjusting screw, so that the adjusting screw contacts with the connecting sleeve in the gear box;
s4. measuring the friction torque of worm gear end in real time by worm gear torque sensor;
s5. when the friction torque of the worm gear end reaches the requirement, stopping screwing the screw, and completing the debugging.
10. A method of testing a worm gear small assembly running-in test device with variable load as claimed in claim 9, further comprising the steps of:
s6. moving the worm driving sleeve to the worm rod end of the workpiece and connecting with the worm driving sleeve through the testing moving cylinder of the worm driving mechanism;
s7. the worm servo drive motor applies the load corresponding to the requirement according to the product characteristic, and detects the friction torque of the worm rod end through the worm torque sensor to realize the full closed loop control, and the worm servo drive motor can apply any load below the highest set value;
s8. the worm wheel servo drive motor drives the worm wheel of the workpiece to rotate, and the worm wheel torque sensor measures whether the friction torque of the worm wheel end of the workpiece after applying load meets the requirement, so as to realize the dynamic running-in test of variable load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110161181.6A CN114878158A (en) | 2021-02-05 | 2021-02-05 | Worm and gear small assembly running-in test device with variable load and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110161181.6A CN114878158A (en) | 2021-02-05 | 2021-02-05 | Worm and gear small assembly running-in test device with variable load and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114878158A true CN114878158A (en) | 2022-08-09 |
Family
ID=82667758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110161181.6A Pending CN114878158A (en) | 2021-02-05 | 2021-02-05 | Worm and gear small assembly running-in test device with variable load and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114878158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117620324A (en) * | 2023-12-21 | 2024-03-01 | 杭州新世宝电动转向系统有限公司 | Worm gear running-in device of steering gear |
-
2021
- 2021-02-05 CN CN202110161181.6A patent/CN114878158A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117620324A (en) * | 2023-12-21 | 2024-03-01 | 杭州新世宝电动转向系统有限公司 | Worm gear running-in device of steering gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111413107B (en) | High-low temperature reliability test bed for automobile gear shifting operation | |
| CN114878158A (en) | Worm and gear small assembly running-in test device with variable load and method | |
| CN108284959B (en) | Six-degree-of-freedom mounting platform | |
| US5046386A (en) | Apparatus for screwing at least one nut onto and off connection members | |
| CN109489974A (en) | A kind of flexible torque loading mechanism of multi-mode switching | |
| CN109049008B (en) | Z-axis anti-falling device for truss robot maintenance | |
| KR870003843A (en) | Method and device for setting the ideal screw location for large size bolts | |
| CN218725310U (en) | Gear performance detection device | |
| CN114459757B (en) | Rolling friction pair lubricating performance testing device and testing method thereof | |
| CN111266842A (en) | Speed multiplying line online screwing positioning device and adjusting method thereof | |
| CN216717803U (en) | Automobile transmission shaft fatigue testing machine | |
| CN211877640U (en) | Tension-torsion testing machine for plug | |
| CN209656268U (en) | A kind of parameter adjustment device of automatic clearance adjuster | |
| CN117516929B (en) | Multifunctional screw rod lifter test bed | |
| CN208134470U (en) | A kind of petroleum robot base device | |
| CN112428172B (en) | Multifunctional clamping mechanism | |
| CN114939851B (en) | Bolt screwing device, bolt weight balance control method and bolt dismounting method | |
| CN220270273U (en) | Shaft workpiece thread detection machine | |
| CN221070848U (en) | Lifting platform and automation equipment | |
| CN113686575B (en) | Full-function dynamic running-in machine control system and control method thereof | |
| CN2035473U (en) | Loading device for testing machine | |
| CN116576248A (en) | Guiding device capable of automatically adjusting gap and adjusting method | |
| CN220881306U (en) | Jacking and rotating mechanism for transmission assembly production line | |
| CN220289279U (en) | Metal casting strength inspection device | |
| CN218254815U (en) | Shaft workpiece detection equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |