CN112556922A - Self-limiting bolt simulator - Google Patents
Self-limiting bolt simulator Download PDFInfo
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- CN112556922A CN112556922A CN202011337510.XA CN202011337510A CN112556922A CN 112556922 A CN112556922 A CN 112556922A CN 202011337510 A CN202011337510 A CN 202011337510A CN 112556922 A CN112556922 A CN 112556922A
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- rotary
- spring
- nut
- torque
- stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
Abstract
The invention discloses a self-limiting bolt simulator, which belongs to the field of electric wrench calibration and mainly comprises a shell, a torque transmission rod, a rotary torque sensor, a rotary lead screw, a rotary stress nut, a reverse stress shell, a disc spring, a spring and a flange base. According to the invention, a spring is connected in series between the base and the rotary stress application nut, so that the problem of excessive loosening can be solved, and the calibration use requirement can be met. The spring is installed in the atress casing, and the main effect is when rotatory afterburning nut uninstallation, and the spring plays spacing effect, avoids rotatory afterburning nut and rotatory lead screw to throw off completely, influences the next use, and then satisfies automation and efficient requirement when the calibration of electro-pneumatic spanner. The invention is beneficial to standardizing the feasibility of the electric wrench metering calibration in China, promotes the development of the electric wrench metering calibration industry in China, and provides metering guarantee for the electric wrenches in China.
Description
Technical Field
The invention belongs to the field of electric wrench calibration, and particularly relates to a bolt simulator which can automatically limit and does not influence secondary use in the self-unloading process in the calibration process.
Background
An electric torque wrench is a rotary power tool capable of outputting a set torque and tightening a bolt fastener, and is widely used in industry and other fields. The conventional bolt simulator for calibration has the problem that the bolt and the nut fall off due to excessive reverse rotation during unloading. According to the detection method, the bolt and the nut need to be manually installed again when next calibration is carried out, so that the working efficiency is greatly influenced, and meanwhile, the risk of damage to calibration equipment is caused.
Disclosure of Invention
The invention discloses a self-limiting bolt simulator, which aims to solve the technical problems that: the bolt simulator can automatically limit in the self unloading process without influencing secondary use in the calibration process, further meets the requirements of automation and high efficiency in the calibration of the electro-pneumatic wrench, and can avoid excessive loosening of bolts.
The purpose of the invention is realized by the following technical scheme.
The invention discloses a self-limiting bolt simulator which mainly comprises a shell, a torque transmission rod, a rotary torque sensor, a rotary lead screw, a rotary stress application nut, a reverse stress shell, a disc spring, a spring and a flange base.
The shell is internally provided with a rotary torque sensor and is connected with the reverse stressed shell.
The torque transmission rod is connected in a mode of square tenon, the upper portion of the torque transmission rod is connected with the electric wrench, the lower portion of the torque transmission rod is connected with the rotating torque sensor, and torque applied by the wrench is transmitted to the rotating torque sensor.
The upper part of the rotary torque sensor is connected with the torque transmission rod, and the lower part of the rotary torque sensor is connected with the rotary screw rod.
The upper part of the rotary screw rod is of a square tenon structure and is connected with the rotary torque sensor, and the lower part of the rotary screw rod is of a threaded structure and is connected with the rotary stress application nut.
The inner wall of the rotary stress application nut is connected with the rotary screw rod through threads.
The stressed shell is of a cylindrical structure, and has the main function of bearing the reverse force when the disc spring is compressed by rotating the stress application nut to move.
The disc spring plays a role in stress buffering and is arranged in the stress shell.
The spring is arranged in the stressed shell, and has the main function that when the rotary stress application nut is unloaded, the spring plays a limiting role, so that the phenomenon that the rotary stress application nut is completely separated from the rotary screw rod to influence the next use is avoided.
The flange base is arranged at the lower end of the device and is provided with a flange hole, so that the flange base can be conveniently connected with other devices.
The invention discloses a working method of a self-limiting bolt simulator, which comprises the following steps:
the method comprises the following steps: the electric wrench that will be furnished with suitable adapter is installed on the square falcon of torque transmission pole upper end, then pneumatic wrench carries out the moment of torsion loading.
When the spanner is positively rotated for loading, the force application nut is rotated to ascend to press the disc spring tightly, so that the buffering effect is achieved. Until the spanner is loaded to the setting torque, the dish spring is compressed, and simultaneously the torque value is read by the rotating torque sensor.
Step two: and recording related data, and finishing the loading process. The unloading process is followed.
Step 2.1: and adjusting the electric wrench to an unloading gear, and then unloading the torque.
Step 2.2: when the wrench is reversely rotated to unload, the force application nut is rotated to lift down, and the disc spring is loosened. Until the wrench is unloaded to zero, the disc spring is fully released. Meanwhile, after the stress application nut and the rotary screw rod fall off, the stress application nut is immediately contacted with the spring, so that the idling effect is achieved, and the automatic limiting process is completed.
Step 2.3: and (6) finishing unloading.
Step three: when the device is used for the next time, the stress application nut can be in threaded connection with the rotary lead screw again when rotating forward under the action of the spring, and the next calibration process is completed.
Has the advantages that:
1. the conventional bolt simulator for calibration has the problem that the bolt and the nut fall off due to excessive reverse rotation during unloading. According to the self-limiting bolt simulator disclosed by the invention, the mode that the spring is connected in series between the base and the rotary stress application nut can be used for solving the problem of excessive loosening and meeting the calibration use requirement.
2. Need be at next calibration, manual installation bolt nut again, influence work efficiency, can produce the risk of damage to calibration equipment simultaneously. The invention discloses a self-limiting bolt simulator, wherein a spring is arranged in a stressed shell, and the self-limiting bolt simulator mainly has the advantages that when a rotary stressing nut is unloaded, the spring plays a limiting role, the phenomenon that the rotary stressing nut is completely separated from a rotary lead screw to influence the next use is avoided, and further the requirements of automation and high efficiency during calibration of an electro-pneumatic wrench are met.
3. The self-limiting bolt simulator disclosed by the invention is beneficial to standardizing the feasibility of electric wrench metering calibration in China, promotes the development of electric wrench metering calibration industry in China, provides metering guarantee for electric wrenches in China and has good social benefits.
Drawings
FIG. 1 is a self-limiting bolt simulator;
FIG. 2 is a view of the internal structure of the self-limiting bolt simulator;
wherein: the device comprises a shell 1, a torque transmission rod 2, a rotary torque sensor 3, a rotary screw rod 4, a rotary stress nut 5, a reverse stress shell 6, a disc spring 7, a spring 8 and a flange base 9.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments and drawings, but the present invention is not limited to the specific embodiments.
As shown in fig. 1 and 2, the self-limiting bolt simulator disclosed by the invention mainly comprises a shell 1, a torque transmission rod 2, a rotary torque sensor 3, a rotary lead screw 4, a rotary stress nut 5, a reverse stress shell 6, a disc spring 7, a spring 8 and a flange base 9.
The shell 1 is internally provided with a rotary torque sensor 3 and is connected with a reverse stressed shell 6.
The torque transmission rod 2 is connected in a square tenon mode, the upper portion of the torque transmission rod is connected with an electric wrench, the lower portion of the torque transmission rod is connected with the rotating torque sensor 3, and torque applied by the wrench is transmitted to the rotating torque sensor 3.
The upper part of the rotary torque sensor 3 is connected with the torque transmission rod 2, and the lower part of the rotary torque sensor is connected with the rotary screw rod 4.
Rotatory lead screw 4, upper portion are the side falcon structure, are connected with rotatory torque sensor 3, and the lower part is helicitic texture, is connected with rotatory afterburning nut 5.
The inner wall of the rotary stress application nut 5 is connected with the rotary screw rod 4 through threads.
The stress shell 6 is of a cylindrical structure, and has the main function of bearing the reverse force when the disc spring 7 is compressed by rotating the stress nut 5 to move.
And the disc spring 7 plays a role in stress buffering and is arranged in the stress shell 6.
The spring 8 is arranged in the stressed shell 6, and has the main function that when the rotary stressing nut 5 is unloaded, the spring plays a limiting role, so that the phenomenon that the rotary stressing nut 5 is completely separated from the rotary screw rod 4 to influence the next use is avoided.
The flange base 9 is installed at the lower end of the device and is provided with flange holes, so that the flange base can be conveniently connected with other devices.
The working method of the self-limiting bolt simulator disclosed by the embodiment comprises the following steps:
the method comprises the following steps: the electric spanner that will be furnished with suitable adapter is installed on the square falcon of torque transmission pole 2 upper end, then pneumatic spanner carries out the moment of torsion loading.
When the spanner is positively rotated for loading, the rotary stress application nut 5 rises to press the disc spring 7 tightly, so as to play a role of buffering. Until the wrench is loaded to the set torque, the disc spring 7 is compressed and the torque sensor 3 is rotated to read the torque value.
Step two: and recording related data, and finishing the loading process. The unloading process is followed.
Step 2.1: and adjusting the electric wrench to an unloading gear, and then unloading the torque.
Step 2.2: when the wrench is reversely rotated to unload, the rotating stressing nut 5 ascends to loosen the disc spring 7. Until the wrench is unloaded to zero, the disc spring 7 is completely released. Meanwhile, after the stress application nut 5 and the rotary screw rod 4 are disengaged, the stress application nut 5 is immediately contacted with the spring 8, so that an idling effect is achieved, and the automatic limiting process is completed.
Step 2.3: and (6) finishing unloading.
Step three: when the device is used for the next time, the stress application nut 5 is in threaded connection with the rotary lead screw 4 again when rotating forwards under the action of the spring 8, and the next calibration process is completed.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. The utility model provides a from spacing formula bolt simulator which characterized in that: the device mainly comprises a shell (1), a torque transmission rod (2), a rotary torque sensor (3), a rotary lead screw (4), a rotary stress application nut (5), a reverse stress shell (6), a disc spring (7), a spring (8) and a flange base (9);
a rotary torque sensor (3) is arranged in the shell (1) and is connected with a reverse stress shell (6) at the same time;
the torque transmission rod (2) is connected in a mode of square falcon, the upper part of the torque transmission rod is connected with the electric wrench, the lower part of the torque transmission rod is connected with the rotating torque sensor (3), and the torque applied by the wrench is transmitted to the rotating torque sensor (3);
the upper part of the rotary torque sensor (3) is connected with the torque transmission rod (2), and the lower part of the rotary torque sensor is connected with the rotary screw rod (4);
the upper part of the rotary screw rod (4) is of a square tenon structure and is connected with the rotary torque sensor (3), and the lower part of the rotary screw rod is of a threaded structure and is connected with the rotary stress application nut (5);
the inner wall of the rotary stress application nut (5) is connected with the rotary screw rod (4) through threads;
the stress shell (6) is of a cylindrical structure and has the main function of bearing the action of reverse force when the disc spring (7) is tightly pressed by moving the rotary stress application nut (5);
the disc spring (7) plays a role in stress buffering and is arranged in the stress shell (6);
the spring (8) is arranged in the stressed shell (6), and has the main function that when the rotary stress application nut (5) is unloaded, the spring plays a limiting role, so that the phenomenon that the rotary stress application nut (5) is completely separated from the rotary lead screw (4) to influence the next use is avoided;
the flange base (9) is arranged at the lower end of the device and is provided with a flange hole, so that the flange base can be conveniently connected with other devices.
2. A self-limiting bolt simulator as defined in claim 1, wherein: the working method is that,
the method comprises the following steps: an electric wrench provided with a proper adapter is arranged on a square tenon at the upper end of the torque transmission rod (2), and then the pneumatic wrench is used for loading torque;
when the wrench is loaded in the forward rotation mode, the force application nut (5) is rotated to ascend, and the disc spring (7) is pressed tightly to play a buffering role; when the spanner is loaded to a set torque, the disc spring (7) is pressed, and the torque sensor (3) is rotated to read a torque value;
step two: recording related data, and finishing the loading process; then, carrying out an unloading process;
step 2.1: adjusting the electric wrench to an unloading gear, and then unloading the torque;
step 2.2: when the wrench is reversely rotated to unload, the boosting nut (5) is rotated to lift downwards, and the disc spring (7) is loosened; until the spanner is unloaded to zero, the disc spring (7) is completely loosened; meanwhile, after the stress application nut (5) and the rotary screw rod (4) are disengaged, the stress application nut (5) is immediately contacted with the spring (8), so that an idling effect is achieved, and the automatic limiting process is completed;
step 2.3: completing unloading;
step three: when the device is used for the next time, the stress application nut (5) can be in threaded connection with the rotary lead screw (4) again when rotating forwards under the action of the spring (8), and the next calibration process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337510.XA CN112556922B (en) | 2020-11-25 | 2020-11-25 | Self-limiting bolt simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011337510.XA CN112556922B (en) | 2020-11-25 | 2020-11-25 | Self-limiting bolt simulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112556922A true CN112556922A (en) | 2021-03-26 |
| CN112556922B CN112556922B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011337510.XA Active CN112556922B (en) | 2020-11-25 | 2020-11-25 | Self-limiting bolt simulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4119915A1 (en) * | 2021-07-14 | 2023-01-18 | Kistler Holding AG | Simulation device for simulating the screw application of a screwing tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0723839A1 (en) * | 1995-01-28 | 1996-07-31 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Torque wrench |
| CN2801410Y (en) * | 2005-03-15 | 2006-08-02 | 上海盘江机电设备制造有限公司 | Torque control mechanism of sleeper bolt mechanical spanner |
| CN2808448Y (en) * | 2005-06-18 | 2006-08-23 | 长安汽车（集团）有限责任公司 | Flexible buffer for pneumatic electric spanner dynamic calibrating apparatus |
| CN2863322Y (en) * | 2005-06-02 | 2007-01-31 | 浙江三鸥机械股份有限公司 | Self-locking spanner drill chuck |
| CN203672603U (en) * | 2013-12-06 | 2014-06-25 | 陕西东方航空仪表有限责任公司 | Bolt simulation mechanism in set-twisting tool detector |
| CN205588203U (en) * | 2016-03-16 | 2016-09-21 | 林珠贵 | Stability can high spanner |
-
2020
- 2020-11-25 CN CN202011337510.XA patent/CN112556922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0723839A1 (en) * | 1995-01-28 | 1996-07-31 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Torque wrench |
| CN2801410Y (en) * | 2005-03-15 | 2006-08-02 | 上海盘江机电设备制造有限公司 | Torque control mechanism of sleeper bolt mechanical spanner |
| CN2863322Y (en) * | 2005-06-02 | 2007-01-31 | 浙江三鸥机械股份有限公司 | Self-locking spanner drill chuck |
| CN2808448Y (en) * | 2005-06-18 | 2006-08-23 | 长安汽车（集团）有限责任公司 | Flexible buffer for pneumatic electric spanner dynamic calibrating apparatus |
| CN203672603U (en) * | 2013-12-06 | 2014-06-25 | 陕西东方航空仪表有限责任公司 | Bolt simulation mechanism in set-twisting tool detector |
| CN205588203U (en) * | 2016-03-16 | 2016-09-21 | 林珠贵 | Stability can high spanner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4119915A1 (en) * | 2021-07-14 | 2023-01-18 | Kistler Holding AG | Simulation device for simulating the screw application of a screwing tool |
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|---|---|
| CN112556922B (en) | 2022-10-28 |
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