CN216377043U - Portable friction transmission device for detecting speed limiter - Google Patents
Portable friction transmission device for detecting speed limiter Download PDFInfo
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- CN216377043U CN216377043U CN202122721332.7U CN202122721332U CN216377043U CN 216377043 U CN216377043 U CN 216377043U CN 202122721332 U CN202122721332 U CN 202122721332U CN 216377043 U CN216377043 U CN 216377043U
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- rotating shaft
- driving wheel
- speed limiter
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- 238000001514 detection method Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 5
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- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
A portable friction transmission device for detecting a speed limiter comprises a pistol electric rotating end, wherein a friction rotating device is arranged at the output end of the pistol electric rotating end; the friction rotating device has the structure that: the automatic pistol comprises a rotating shaft arranged at the electric output end of a pistol, wherein a stud locking disc, a friction driving wheel, a pressing disc and a locking nut are sequentially arranged on the rotating shaft from the outer side end inwards, the inner side center of the stud locking disc is welded with the end face of the rotating shaft, meanwhile, the rotating shaft is provided with the friction driving wheel in a matching way, one end of the friction driving wheel is spliced with the stud locking disc, the other end of the friction driving wheel is tightly attached to the pressing disc and is fastened by the locking nut, and the pressing disc and the friction driving wheel are fastened and connected with the stud locking disc by the locking nut; the structure of the stud locking disc is as follows: the friction driving wheel fixing plate comprises a fixing plate, one end face of the fixing plate is a plane, a plurality of studs are arranged on the other end face of the fixing plate, the studs are matched with the friction driving wheel, and the friction driving wheel fixing plate is convenient and reliable to work.
Description
Technical Field
The utility model relates to the technical field of elevator safety monitoring equipment, in particular to a portable friction transmission device for detecting a speed limiter.
Background
A speed governor is one of the important safety components of an elevator and is a device that detects whether the elevator system (including the car, counterweight or counterweight) is running over speed. The speed limiter monitors the speed of the lift car at any time, and when the over-speed condition occurs, namely 115% of the rated speed of the lift is reached, mechanical action can be timely generated to cut off a power supply circuit, so that the traction machine brakes. The safety gear mounted on the car acts to force the car to stop if the elevator is still unable to brake. The speed limiter is the command sender, and the safety gear is the executor. The safety of the elevator can be ensured only by the combined action of the two. No matter what cause the elevator to run over speed (even fall), the governor should act and trigger the safety gear. Therefore, the speed limiter is an extremely important part for ensuring the safety of the elevator, and the safety tongs cannot play a role without the speed limiter with reliable performance. A governor device comprising: the device comprises three parts, namely a speed limiter, a speed limiter steel wire rope, a termination device and a tensioning device. The requirements of elevator supervision and inspection and regular inspection rules-traction and forced drive elevator are as follows: the maintenance unit of the elevator to be checked should perform the speed governor operation speed check every 2 years (for the speed governor with the service life not exceeding 15 years) or every year (for the speed governor with the service life exceeding 15 years). The action speed check of the speed limiter can be divided into direct detection on site and detection in a laboratory after the speed limiter is detached and is brought back to a detection center, and the online detection is that the speed limiter of the elevator is directly detected on site in real time, so that the efficiency is high, the normal use of the elevator is not influenced, and the speed limiter is suitable for most elevators; the time for off-line detection is about 5-6 days, which affects the normal use of the elevator and is suitable for a few super-high-speed elevators. Therefore, under the condition of online detection, a portable friction transmission wheel is mainly designed to rotate the field speed limiter, and the detection result meets the following requirements:
1. the mechanical action speed of a speed limiter for operating the car safety gear is at least equal to 115% of the rated speed; the instantaneous safety gear except the non-shedding roller type accident is 0.8 m/s; the non-shedding roller type instantaneous safety gear is 1 m/s; the rated speed is less than or equal to 1 m/s, and the rated speed is 1.5 m/s; for the progressive safety gear with the rated speed of more than or equal to 1 m/s, (1.25V +0.25V) m/s, the judgment of whether the safety gear is qualified or not can be obtained through calculation after the ONOSOKK I velocimeter is measured.
2. The mechanical action speed of the speed governor for operating the counterweight, the counterweight and the safety gear is larger than the actual action speed of the speed governor for operating the car safety gear, and the actual action speed is not more than 10%.
3. The lower limit of the operating speed of the speed governor as a car up-run overspeed protection device is 115% of the rated speed of the elevator, and the upper limit thereof is the actual operating speed of the speed governor that operates the counterweight (or counterweight) safety gear. The speed limiter rotating wheel is required to be transported through the portable friction driving wheel according to the specified requirements, the speed is measured through the velocimeter when the specified rotating speed requirement is met, and whether the regulation calibration requirement is met or not is obtained through calculation.
Then, on the premise that the portable pistol is required and the detection requirement must be met, the pistol is electrically rotated, the friction transmission device is arranged on the output shaft of the pistol, and the problems that the friction coefficient, the slippage between the friction wheel and the rotating shaft cannot be achieved and the like can be guaranteed must be solved.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides a portable friction transmission device for detecting a speed limiter, so that the defects in the prior art can be effectively overcome, and the monitoring precision is greatly improved.
The technical scheme adopted by the utility model is as follows:
a portable friction transmission device for detecting a speed limiter comprises a pistol electric rotating end, wherein a friction rotating device is arranged at the output end of the pistol electric rotating end;
the friction rotating device has the structure that: the automatic pistol comprises a rotating shaft arranged at the electric output end of a pistol, wherein a stud locking disc, a friction driving wheel, a pressing disc and a locking nut are sequentially arranged on the rotating shaft from the outer side end inwards, the center position of the inner side of the stud locking disc is welded with the end surface of the rotating shaft, meanwhile, the rotating shaft is provided with the friction driving wheel in a matching way, one end of the friction driving wheel is spliced with the stud locking disc, the other end of the friction driving wheel is tightly attached to the pressing disc and fastened by the locking nut, and the pressing disc and the friction driving wheel are fastened and connected with the stud locking disc by the locking nut;
the structure of the stud locking disc is as follows: the friction transmission device comprises a fixed disc, wherein one end face of the fixed disc is a plane, a plurality of studs are arranged on the other end face of the fixed disc, and the studs are matched with a friction transmission wheel.
As a further improvement of the above technical solution:
the cross-sectional profile of the fixed disk is circular.
Four studs are uniformly distributed on the fixed disc in the circumferential direction.
The friction transmission wheel is made of hard rubber.
Still include telescopic bracket support subassembly, telescopic bracket support subassembly's structure is: including flexible mobile jib, the bottom of flexible mobile jib is provided with the support frame, the top of flexible mobile jib is provided with the support portion, support portion and the electronic normal running fit of pistol.
And a welding part welded with the end face of the rotating shaft is arranged at the center of the stud locking disc.
The rotating shaft is a polished rod.
The rotating shaft is a screw rod.
And a plurality of grooves matched with the studs are formed in the friction driving wheel.
The friction transmission wheel is sleeved on the rotating shaft in an empty mode.
The utility model has the following beneficial effects:
the utility model has compact and reasonable structure and convenient operation, can conveniently detect whether the whole speed limiter meets the specified requirements or not by the mutual matching of components such as a pistol electric rotating device, a friction rotating device and the like, and has convenient detection, high detection precision and good practicability.
The utility model improves the output head of the electric pistol, adds a friction transmission device, prevents the friction transmission wheel from slipping through a fastening structure such as a stud locking disc and the like, improves the detection precision, and further improves the stability of the whole detection through the assistance of the telescopic bracket supporting component, thereby being very practical.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 shows an internal mounting structure of a head portion of a rotating shaft according to the present invention.
Fig. 3 is a diagram of the application of the present invention.
Fig. 4 is a side view of the governor rotating wheel and bracket of the present invention.
Fig. 5 is a front view of the stud locking disk of the present invention.
Fig. 6 is a side view of fig. 5.
Wherein: 1. the pistol is electrically rotated; 2. a rotating shaft; 3. a stud locking disc; 4. a friction drive wheel; 5. a compression disc; 6. locking the nut; 7. a telescopic main rod; 8. a support frame; 9. a holder; 10. welding the part; 11. a governor rotating wheel; 12. a wire rope; 13. a support;
301. fixing the disc; 302. and (5) stud.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-6, the portable friction transmission device for detecting the speed limiter of the present embodiment includes a pistol electric motor 1, and the output end of the pistol electric motor 1 is provided with a friction rotating device;
the friction rotating device has the structure that: the automatic pin gun locking device comprises a rotating shaft 2 arranged at the output end of an electric rotating shaft 1 of a gun, a stud locking disc 3, a friction driving wheel 4, a pressing disc 5 and a locking nut 6 are sequentially arranged on the rotating shaft 2 from the outer side end inwards, the center position of the inner side of the stud locking disc 3 is welded with the end face of the rotating shaft 2, meanwhile, the friction driving wheel 4 is arranged on the rotating shaft 2 in a matched mode, one end of the friction driving wheel 4 is inserted into the stud locking disc 3, the other end of the friction driving wheel 4 is tightly attached to the pressing disc 5 and fastened through the locking nut 6, and the pressing disc 5 and the friction driving wheel 4 are tightly connected with the stud locking disc 3 through the locking nut 6;
the structure of the stud locking disk 3 is as follows: the friction transmission device comprises a fixed disc 301, one end face of the fixed disc 301 is a plane, the other end face of the fixed disc 301 is provided with a plurality of studs 302, and the studs 302 are matched with a friction transmission wheel 4.
The device is characterized by further comprising a support 13, wherein a speed governor rotating wheel 11 is mounted on the support 13, a steel wire rope 12 is wound on the speed governor rotating wheel 11, and the friction driving wheel 4 is matched with the speed governor rotating wheel 11.
The fixed disk 301 has a circular cross-sectional profile.
The fixed plate 301 is uniformly distributed with four studs 302 in the circumferential direction.
The friction transmission wheel 4 is made of hard rubber.
The bottom of flexible mobile jib 7 is provided with support frame 8, and the top of flexible mobile jib 7 is provided with support portion 9, and support portion 9 and the electronic 1 cooperation that changes of pistol.
The central position of the stud locking disk 3 is provided with a welding part 10 welded with the end face of the rotating shaft 2.
The rotating shaft 2 is a polished rod.
The rotating shaft 2 is a screw.
The friction transmission wheel 4 is provided with a plurality of grooves matched with the studs 302.
The friction driving wheel 4 is sleeved on the rotating shaft 2.
The specific structure and function of the utility model are as follows:
mainly comprises a pistol electric rotating shaft 1, wherein the output end of the pistol electric rotating shaft 1 is provided with a friction rotating device, the friction rotating device comprises a rotating shaft 2 arranged at the output end of the pistol electric rotating shaft 1, a column nail locking disc 3, a friction driving wheel 4, a pressing disc 5 and a locking nut 6 are sequentially arranged on the rotating shaft 2 from the outer side end inwards, the column nail locking disc 3 fastens the pressing disc 5 and the friction driving wheel 4 together with the column nail locking disc 3 through the locking nut 6, the column nail locking disc 3 comprises a fixed disc 301 and a column nail 302 arranged on the fixed disc 301, when the friction driving wheel 4 is fastened with the column nail locking disc 3, the stud 302 is inserted into the friction driving wheel 4 to be fastened, so that the stud locking disc 3 and the friction driving wheel 4 cannot generate relative displacement after being fastened, namely the friction driving wheel 4 cannot slip during working, and the detection precision is improved;
the cross section of the fixed disc 301 is circular, and four studs 302 are uniformly distributed on the fixed disc 301 according to the circumference, so that four-point fixing is realized; the friction transmission wheel 4 is made of hard rubber, is most suitable after being used as a material which is tightly attached to the rotating wheel 11 of the speed limiter in a test, has the largest friction coefficient and has the rotating efficiency of the slipping phenomenon of 1: 1; the lower part of the electric rotor 1 of the pistol is also provided with a telescopic bracket support assembly, the telescopic bracket support assembly comprises a telescopic main rod 7, the bottom of the telescopic main rod 7 is provided with a support frame 8, the top of the telescopic main rod is provided with a support part 9 for supporting the electric rotor 1 of the pistol, and the electric rotor 1 of the pistol is further stably supported; the stud lock disk 3 is provided at a central position thereof with a weld 10 for welding and fixing to the rotary shaft 2.
The working principle and the working process of the utility model are as follows:
the steel wire rope 12 wound on the speed limiter rotating wheel 11 for operating the car safety gear is turned up by the steel wire locking gear on site, so that the disc of the speed limiter rotating wheel 11 is loosened, the locking gear clamps the steel wire rope 12 of the speed limiter rotating wheel 11 tightly to be loosened greatly, and the speed limiter rotating wheel 11 can rotate freely and can perform online detection.
(II) after adjusting suitable height with flexible mobile jib 7, on 1 frame with the electronic commentaries on classics of pistol to make friction drive wheel 4 hug closely the periphery of overspeed governor rotation wheel 11, start the electronic commentaries on classics of pistol 1, under the drive of friction drive wheel 4, overspeed governor rotation wheel 11 is transported by slow-down to fast, reach the transport speed of regulation, reuse tachymeter survey its transport speed reach and meet the requirements, and then detect whether the whole of overspeed governor reaches the regulation requirement, on-line measuring's purpose has just so reached.
In the use, according to the environment and the detection standard difference, also can not hold in the palm with flexible support, directly the pistol is held to both hands and the electronic commentaries on classics 1 is operated, other steps do not change.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (10)
1. A portable friction drive for detecting a speed limiter, characterized by: the automatic pistol electric rotating device comprises a pistol electric rotating device (1), wherein a friction rotating device is arranged at the output end of the pistol electric rotating device (1);
the friction rotating device has the structure that: the automatic pistol driving device comprises a rotating shaft (2) arranged at the output end of an electric rotating shaft (1) of a pistol, wherein a stud locking disc (3), a friction driving wheel (4), a pressing disc (5) and a locking nut (6) are sequentially arranged on the rotating shaft (2) from the outer end part inwards, the center position of the inner side of the stud locking disc (3) is welded with the end surface of the rotating shaft (2), meanwhile, the friction driving wheel (4) is arranged on the rotating shaft (2) in a matching manner, one end of the friction driving wheel (4) is inserted into the stud locking disc (3), the other end of the friction driving wheel (4) is tightly attached to the pressing disc (5) and is fastened by the locking nut (6), and the pressing disc (5) and the friction driving wheel (4) are fastened and connected with the stud locking disc (3) by the locking nut (6);
the structure of the stud locking disc (3) is as follows: the friction transmission disc comprises a fixed disc (301), one end face of the fixed disc (301) is a plane, a plurality of studs (302) are arranged on the other end face of the fixed disc (301), and the studs (302) are matched with a friction transmission wheel (4).
2. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the cross section of the fixed disc (301) is circular.
3. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: four studs (302) are uniformly distributed on the fixed disc (301) in the circumferential direction.
4. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the friction transmission wheel (4) is made of hard rubber.
5. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: still include telescopic bracket support subassembly, telescopic bracket support subassembly's structure is: including flexible mobile jib (7), the bottom of flexible mobile jib (7) is provided with support frame (8), the top of flexible mobile jib (7) is provided with support portion (9), support portion (9) and electronic commentaries on classics (1) cooperation of pistol.
6. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: and a welding part (10) welded with the end face of the rotating shaft (2) is arranged at the central position of the stud locking disc (3).
7. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the rotating shaft (2) is a polished rod.
8. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the rotating shaft (2) is a screw rod.
9. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the friction transmission wheel (4) is provided with a plurality of grooves matched with the studs (302).
10. A portable friction drive for sensing a speed limiter in accordance with claim 1 wherein: the friction transmission wheel (4) is sleeved on the rotating shaft (2) in an empty mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721332.7U CN216377043U (en) | 2021-11-08 | 2021-11-08 | Portable friction transmission device for detecting speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721332.7U CN216377043U (en) | 2021-11-08 | 2021-11-08 | Portable friction transmission device for detecting speed limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216377043U true CN216377043U (en) | 2022-04-26 |
Family
ID=81252285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122721332.7U Expired - Fee Related CN216377043U (en) | 2021-11-08 | 2021-11-08 | Portable friction transmission device for detecting speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216377043U (en) |
-
2021
- 2021-11-08 CN CN202122721332.7U patent/CN216377043U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220426 |