CN114739492A - Weighing device for signal acquisition board of shaft pin sensor - Google Patents
Weighing device for signal acquisition board of shaft pin sensor Download PDFInfo
- Publication number
- CN114739492A CN114739492A CN202210412192.1A CN202210412192A CN114739492A CN 114739492 A CN114739492 A CN 114739492A CN 202210412192 A CN202210412192 A CN 202210412192A CN 114739492 A CN114739492 A CN 114739492A
- Authority
- CN
- China
- Prior art keywords
- pin sensor
- shaft pin
- lug
- signal acquisition
- acquisition board
- 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
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a weighing device for a shaft pin sensor signal acquisition plate, which comprises an upper mounting rack, a shaft pin sensor, a lower mounting rack and a weight box, wherein the upper mounting rack is arranged on the upper side of the shaft pin sensor; the upper mounting rack and the lower mounting rack are connected through a rotating pin; the rotating pin is a shaft pin sensor; the shaft pin sensor is connected with the signal acquisition board to be detected through a transmission signal wire; the weight box is connected with the lower mounting frame through a hoisting U-shaped lock catch; the weight box is used for placing a balance weight; after the counterweight is placed, under the action of the upper mounting frame and the lower mounting frame, the shaft pin sensor generates current after deformation; the current is transmitted to a signal acquisition board to be tested through a conducting signal wire; by the method, the accurate weighing of the shaft pin sensor signal acquisition board can be realized.
Description
Technical Field
The invention belongs to the technical field of signal acquisition board weighing, and particularly relates to a weighing device for a signal acquisition board of a shaft pin sensor.
Background
In the field of manufacturing of frequency converters of all-in-one machines special for construction elevators, most of manufacturing enterprises of frequency converters of all-in-one machines special for construction elevators are in the power electronic industry. The production of the construction elevator belongs to the mechanical manufacturing industry, belongs to special equipment, has no related qualification and is not allowed to be produced. It is even impossible to purchase a construction elevator as a special device for detecting the signal acquisition board. Under the restriction of the above conditions, the sampling precision detection of the signal acquisition board of the pin sensor arranged inside the frequency converter of the special all-in-one machine for the construction elevator is a great difficulty and is also a working difficulty for after-sales debugging personnel to detect the frequency converter of the special all-in-one machine for the construction elevator after production.
The frequency converter of the special all-in-one machine for the construction elevator is used as a core control brain of the construction elevator and is responsible for processing the state transmitted by various safety device sensors arranged on a mechanical structure of the construction elevator, and controlling the safe operation of the construction elevator after analysis and judgment.
The shaft pin sensor is used as a core safety device of the construction elevator and is responsible for judging whether the car runs under a normal load state or not and solving the problems of overload and the like. The working principle of the integrated machine is that an extremely low direct current signal is generated through deformation of the shaft pin sensor and is transmitted to the collecting plate inside the special integrated machine frequency converter, the collecting plate transmits the received current signal to the frequency converter control panel and the PLC after current/weight conversion, and the frequency converter can operate on the premise that the frequency converter and the PLC judge the current load safety, so that the weighing function and the accuracy of the shaft pin sensor signal collecting plate are critical.
In view of the fact that the ratio of an extremely low direct current signal generated by deformation of the shaft pin sensor to the load tonnage is large, how to improve the acquisition precision of the signal acquisition board in the special all-in-one machine frequency converter is a design difficulty of the signal acquisition board. Similarly, after the signal acquisition board with high precision is produced, how to test the signal acquisition board is a difficult point in work.
Before the detection device is not provided, a high-precision direct current power supply is used for providing a relatively close direct current for the signal acquisition board all the time to judge whether an acquisition circuit of the signal acquisition board is qualified or not, and the obtained result is approximate weight and cannot judge whether the acquisition precision reaches the standard or not. The basic function of the pin sensor signal acquisition board can only be proved to be normal. In order to obtain accurate weight precision, the sampling resistor of the signal acquisition board is required to be adjusted repeatedly in practical application, so that the standard weight of the weighed weight can be accurately displayed. And the high-precision direct-current power supply is expensive, and after various electromagnetic radiations are received, the stability of the high-precision direct-current power supply is not optimistic, and the error detection phenomenon often occurs because the low current given by the high-precision direct-current power supply is not standard, so that the product quality of the signal acquisition board is unstable. The standard weight of the weighed weight can be accurately displayed by repeatedly adjusting the sampling resistor of the signal acquisition board in practical application. This brings very big hidden danger to the mechanical structure safety of construction elevator, personnel's safety. Also, it brings great challenges to the market.
Therefore, how to set a set of special weighing device for the shaft pin sensor signal acquisition board becomes a key problem of current research.
Disclosure of Invention
In view of the above problems, the present invention provides a weighing apparatus for a shaft pin sensor signal acquisition board, which at least solves some of the above technical problems, and by which the shaft pin sensor signal acquisition board can be accurately weighed.
The embodiment of the invention provides a shaft pin sensor signal acquisition board weighing device, which comprises: the device comprises an upper mounting rack (1), a shaft pin sensor (2), a lower mounting rack (3) and a weight box (6);
the upper mounting rack (1) is connected with the lower mounting rack (3) through a rotating pin; the rotating pin is a shaft pin sensor (2); the shaft pin sensor (2) is connected with a signal acquisition board to be detected through a conducting signal wire (7);
the weight box (6) is connected with the lower mounting frame (3) through a lifting U-shaped lock catch (4);
the weight box (6) is used for placing a weight (5);
after a counterweight is placed, under the action of the upper mounting frame (1) and the lower mounting frame (3), the shaft pin sensor (2) generates current after deformation; the current is transmitted to the signal acquisition board to be tested through the conduction signal wire (7).
Further, the shaft pin sensor (2) is cylindrical;
one end of the cylinder is provided with a wedge-shaped clamping surface (2.5); a first acting surface (2.1), a second acting surface (2.2), a third acting surface (2.3) and a fourth acting surface (2.4) are sequentially arranged on the other cylindrical end and the cylindrical surface at one end provided with the wedge-shaped clamping surface (2.5);
a clamping groove (2.6) is arranged between the wedge-shaped clamping surface (2.5) and the fourth acting surface (2.4);
the first acting surface (2.1), the second acting surface (2.2) and the fourth acting surface (2.4) are concave ring grooves;
the upper mounting frame (1) is in contact with the first force application surface (2.1) and the clamping groove (2.6);
the lower mounting frame (3) is in contact with the third acting surface (2.3) and is mounted with the wedge-shaped clamping surface (2.5) in a matching way;
under the action of the force of the upper mounting frame (1) and the lower mounting frame (3), the second force application surface (2.2) and the fourth force application surface (2.4) are stressed upwards; the third force application surface (2.3) is stressed downwards; at the moment, the shaft pin sensor (2) deforms and generates current.
Further, the upper mounting frame (1) comprises a first transverse channel (1.2);
the bottom ends of two sides of the first transverse channel steel (1.2) are symmetrically welded with first fixing lugs (1.3) and first mounting lugs (1.4); the first fixing lug (1.3) is positioned inside the first mounting lug (1.4); the first fixing lug (1.3) and the first mounting lug (1.4) are provided with force applying holes;
the force application hole on the first mounting lug (1.4) is in circumferential contact with the first force application surface (2.1);
the force applying hole on the first fixing lug (1.3) is clamped with the clamping groove (2.6).
Furthermore, the first fixing lug (1.3) and the first mounting lug (1.4) are both vertical to the first transverse channel steel (1.2).
Further, the upper mounting frame (1) further comprises a first hanging boom (1.1);
the first hanging and installing hanger rod (1.1) is welded on the first transverse channel steel (1.2).
Further, the lower mounting (3) comprises a second transverse channel (3.3);
the upper ends of two sides of the second transverse channel steel (3.3) are symmetrically welded with second fixing lugs (3.1) and second mounting lugs (3.2); the second fixing lug (3.1) is positioned inside the second mounting lug (3.2); the second fixing lug (3.1) is provided with a force application hole; the second mounting lug (3.2) is provided with a fixing hole;
the force application holes on the second mounting lugs (3.2) are in circumferential contact with the third force application surfaces (2.3); the fixing hole on the second fixing lug (3.1) is matched and installed with the wedge-shaped clamping surface (2.5).
Furthermore, a hanging lug (3.4) is welded in the middle of the bottom end of the second transverse channel steel (3.3);
a second hanging suspender (6.1) is welded on the weight box (6);
the second hanging and lifting rod (6.1) is connected with the force applying hole on the hanging lug (3.4) through the lifting U-shaped lock catch (4).
Furthermore, the second fixing lug (3.1), the second mounting lug (3.2) and the hanging lug (3.4) are perpendicular to the second transverse channel steel (3.3).
Compared with the prior art, the weighing device for the shaft pin sensor signal acquisition board has the following beneficial effects that:
the device just contacts with the stress surface on the shaft pin sensor through the assembly of the upper mounting structure, the lower mounting structure and three parts of the shaft pin sensor, and applies certain pressure to the shaft pin sensor through the weight box to deform the shaft pin sensor, so that a real low-current signal is output and is transmitted to a shaft pin sensor signal acquisition board of a special all-in-one machine frequency converter for a construction elevator. The testing method well simulates the real installation working condition of the shaft pin sensor on the construction elevator, is safe and consistent with the field use environment of the shaft pin sensor, and has real and reliable low-current signal data. In addition, the actual working condition of the shaft pin sensor is well restored in the whole testing process, and the obtained low-current signal is obtained. The sampling precision, the processing quality and the like of the signal acquisition board can be detected well and quickly, and the bad phenomena of error detection, missing detection or problem occurrence after the detection are not found through the practical function detection application of the large-batch signal acquisition board. The detection speed is fast and efficient. The testing device has the advantages of ingenious design, simple processing and low structural cost.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a shaft pin sensor signal acquisition board weighing device provided in an embodiment of the present invention.
Fig. 2 is a schematic view of an assembly structure of a pin sensor according to an embodiment of the present invention.
Fig. 3 is a schematic view of a lifting U-shaped lock according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a counterweight loaded in the box body of the counterweight box provided by the embodiment of the invention.
Fig. 5 is a schematic structural view of a counterweight according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of a pin sensor and conductive signal line structure according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an upper mounting bracket according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a lower mounting bracket according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a weight box according to an embodiment of the present invention.
In the drawings, 1-upper mounting frame; 1.1-a first hanging boom; 1.2-a first transverse channel; 1.3-first fixing lug; 1.4-a first mounting ear; 2-axle pin sensor; 2.1-first acting surface; 2.2-second force application surface; 2.3-the third acting surface; 2.4-fourth force-exerting surface; 2.5-wedge clamping surface; 2.6-card slot; 3-a lower mounting frame; 3.1-second fixing ear; 3.2-second mounting ears; 3.3-a first transverse steel channel; 3.4-hanging ears; 4-lifting U-shaped lock catches; 5-counterweight; 6-weight box; 6.1-a second hanging boom; 7-conductive signal line.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a shaft pin sensor signal acquisition board weighing apparatus, including an upper mounting bracket 1, a shaft pin sensor 2, a lower mounting bracket 3, and a weight box 6; wherein, the upper mounting rack 1 and the lower mounting rack 3 are connected through a rotating pin, and the specific connecting structure can be seen in fig. 2; the rotating pin is a shaft pin sensor 2; the shaft pin sensor 2 is connected with a signal acquisition board to be detected through a conduction signal wire 7; the weight box 6 is connected with the lower mounting frame 3 through a lifting U-shaped lock catch 4, wherein the lifting U-shaped lock catch 4 is shown in figure 3; the weight box 6 is used for placing a counterweight 5, and particularly refers to fig. 4; the weight of a single counterweight is 20Kg, and the counterweight can be placed in the counterweight box according to the test requirement to carry out the weighing test. Wherein the structure diagram of the counterweight is shown in figure 5; after the counterweight is placed, under the action of the upper mounting frame 1 and the lower mounting frame 3, the shaft pin sensor 2 generates low current after deformation; the low current is transmitted to the signal acquisition board to be measured through the conductive signal line 7.
The shaft pin sensor 2 will be specifically described below.
In the prior art, the shaft pin sensor is actually a hollow section round shaft bearing a shearing force, the double-shear type resistance strain gauges are adhered to the center position of a groove in a central hole, and two bridge combination measurement modes are provided, namely, the double-shear type resistance strain gauges at two grooves jointly form a Wheatstone bridge or respectively form the Wheatstone bridges and then are connected in parallel for measurement.
Referring to fig. 6, in the embodiment of the present invention, the shaft pin sensor 2 is cylindrical; one end of the cylinder is provided with a wedge-shaped clamping surface 2.5; a first acting surface 2.1, a second acting surface 2.2, a third acting surface 2.3 and a fourth acting surface 2.4 are sequentially arranged on the other cylindrical end and the cylindrical surface at the end provided with the wedge-shaped clamping surface 2.5; a clamping groove 2.6 is arranged between the wedge-shaped clamping surface 2.5 and the fourth acting surface 2.4; wherein, the first acting surface 2.1, the second acting surface 2.2 and the fourth acting surface 2.4 are concave ring grooves; the upper mounting frame 1 is contacted with the first acting surface 2.1 and the clamping groove 2.6; the lower mounting frame 3 is contacted with the third acting surface 2.3 and is matched and mounted with the wedge-shaped clamping surface 2.5;
the upper mounting rack 1 is hung on a lifting hook of a crane, the shaft pin sensor 2 penetrates through a combined body formed by the upper mounting rack 1 and the lower mounting rack 3, and the second acting surface 2.2 and the fourth acting surface 2.4 on the shaft pin sensor 2 are forced upwards by the gravity of the weight box; the third acting surface 2.3 is stressed downwards; at the moment, the shaft pin sensor 2 deforms and generates low current; the low current is transmitted to a signal acquisition board inside the special all-in-one machine frequency converter through a conductive signal wire 7. In the concrete use, the signal acquisition board transmits the received current signal to the frequency converter control panel and the PLC after current/weight conversion, and the frequency converter can operate on the premise that the current load is judged to be safe through the frequency converter and the PLC.
The upper mount 1 will be described in detail below.
Referring to fig. 7, in the embodiment of the present invention, the upper mounting bracket 1 includes a first hanging boom 1.1 and a first transverse channel 1.2; the first hanging and installing hanger rod 1.1 is welded on the first transverse channel steel 1.2 and is used for supporting the weight of the whole device; the bottom ends of two sides of the first transverse channel steel 1.2 are symmetrically welded with first fixing lugs 1.3 and first mounting lugs 1.4, so that the left side and the right side are balanced; the first fixing lug 1.3 is positioned inside the first mounting lug 1.4; the first fixing lug 1.3 and the first mounting lug 1.4 are provided with round force exerting holes; the circular force applying hole on the first mounting lug 1.4 is in circumferential contact with the first force applying surface 2.1; the round force applying hole on the first fixing lug 1.3 is clamped with the clamping groove 2.6. Wherein, first fixed ear 1.3 and first installation ear 1.4 are the vertical state with first horizontal channel-section steel 1.2.
The lower mount 3 will be described in detail below.
Referring to fig. 8, in the embodiment of the present invention, the lower mounting bracket 3 includes a second transverse channel 3.3; the upper ends of two sides of the second transverse channel steel 3.3 are symmetrically welded with second fixing lugs 3.1 and second mounting lugs 3.2, so that balance of the left side and the right side is ensured. (ii) a The second fixing lug 3.1 is positioned at the inner side of the second mounting lug 3.2; the second fixing lug 3.1 is provided with a round force applying hole; the second mounting lug 3.2 is provided with a long waist round fixing hole; the circular force applying hole on the second mounting lug 3.2 is in circumferential contact with the third force applying surface 2.3; the long waist round fixing hole on the second fixing lug 3.1 is tightly matched and installed with the wedge-shaped clamping surface 2.5, so that the shaft pin sensor (2) is prevented from rotating. A hanging lug 3.4 is welded in the middle of the bottom end of the second transverse channel steel 3.3; a second hanging boom 6.1 is welded on the weight box 6, see fig. 9 specifically; the second hanging and installing suspender 6.1 is connected with the force applying hole on the hanging lug 3.4 through the hoisting U-shaped lock catch 4. The second fixing lug 3.1, the second mounting lug 3.2 and the hanging lug 3.4 are all vertical to the second transverse channel steel 3.3.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a shaft pin sensor signal acquisition board weighing device which characterized in that includes: the device comprises an upper mounting rack (1), a shaft pin sensor (2), a lower mounting rack (3) and a weight box (6);
the upper mounting rack (1) is connected with the lower mounting rack (3) through a rotating pin; the rotating pin is a shaft pin sensor (2); the shaft pin sensor (2) is connected with a signal acquisition board to be detected through a conduction signal wire (7);
the weight box (6) is connected with the lower mounting frame (3) through a lifting U-shaped lock catch (4);
the weight box (6) is used for placing a weight (5);
after a counterweight is placed, under the action of the upper mounting frame (1) and the lower mounting frame (3), the shaft pin sensor (2) generates current after deformation; the current is transmitted to the signal acquisition board to be tested through the conduction signal wire (7).
2. The axle pin sensor signal acquisition board weighing device of claim 1, wherein the axle pin sensor (2) is cylindrical;
one end of the cylinder is provided with a wedge-shaped clamping surface (2.5); a first force application surface (2.1), a second force application surface (2.2), a third force application surface (2.3) and a fourth force application surface (2.4) are sequentially arranged on the other cylindrical end and the cylindrical surface at the end provided with the wedge-shaped clamping surface (2.5);
a clamping groove (2.6) is arranged between the wedge-shaped clamping surface (2.5) and the fourth acting surface (2.4);
the first acting surface (2.1), the second acting surface (2.2) and the fourth acting surface (2.4) are concave ring grooves;
the upper mounting frame (1) is in contact with the first force application surface (2.1) and the clamping groove (2.6);
the lower mounting frame (3) is in contact with the third acting surface (2.3) and is mounted with the wedge-shaped clamping surface (2.5) in a matching way;
under the action of the force of the upper mounting frame (1) and the lower mounting frame (3), the second force application surface (2.2) and the fourth force application surface (2.4) are stressed upwards; the third force application surface (2.3) is stressed downwards; at the moment, the shaft pin sensor (2) deforms and generates current.
3. The shaft pin sensor signal acquisition board weighing device of claim 2, wherein said upper mounting bracket (1) comprises a first transverse channel (1.2);
the bottom ends of two sides of the first transverse channel steel (1.2) are symmetrically welded with first fixing lugs (1.3) and first mounting lugs (1.4); the first fixing lug (1.3) is positioned inside the first mounting lug (1.4); the first fixing lug (1.3) and the first mounting lug (1.4) are provided with force applying holes;
the force applying hole on the first mounting lug (1.4) is in circumferential contact with the first force applying surface (2.1);
the force applying hole on the first fixing lug (1.3) is clamped with the clamping groove (2.6).
4. The axle pin sensor signal acquisition board weighing device of claim 3, characterized in that, the first fixed ear (1.3) and the first mounting ear (1.4) are both perpendicular to the first transverse channel steel (1.2).
5. The shaft pin sensor signal acquisition board weighing device of claim 3, wherein said upper mounting bracket (1) further comprises a first hanging boom (1.1);
the first hanging and installing hanger rod (1.1) is welded on the first transverse channel steel (1.2).
6. The weighing device according to claim 2, wherein said lower mounting frame (3) comprises a second transverse channel (3.3);
the upper ends of two sides of the second transverse channel steel (3.3) are symmetrically welded with second fixing lugs (3.1) and second mounting lugs (3.2); the second fixing lug (3.1) is positioned inside the second mounting lug (3.2); the second fixing lug (3.1) is provided with a force application hole; the second mounting lug (3.2) is provided with a fixing hole;
the force application holes on the second mounting lugs (3.2) are in circumferential contact with the third force application surfaces (2.3); the fixing hole on the second fixing lug (3.1) is matched and installed with the wedge-shaped clamping surface (2.5).
7. The shaft pin sensor signal acquisition board weighing device of claim 6, wherein a lug (3.4) is welded in the middle of the bottom end of the second transverse channel steel (3.3);
a second hanging suspender (6.1) is welded on the weight box (6);
the second hanging and lifting rod (6.1) is connected with the force applying hole on the hanging lug (3.4) through the lifting U-shaped lock catch (4).
8. The axle pin sensor signal acquisition board weighing device of claim 7, characterized in that the second fixing lug (3.1), the second mounting lug (3.2) and the suspension lug (3.4) are all perpendicular to the second transverse channel steel (3.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412192.1A CN114739492A (en) | 2022-04-19 | 2022-04-19 | Weighing device for signal acquisition board of shaft pin sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412192.1A CN114739492A (en) | 2022-04-19 | 2022-04-19 | Weighing device for signal acquisition board of shaft pin sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114739492A true CN114739492A (en) | 2022-07-12 |
Family
ID=82283147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210412192.1A Pending CN114739492A (en) | 2022-04-19 | 2022-04-19 | Weighing device for signal acquisition board of shaft pin sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114739492A (en) |
-
2022
- 2022-04-19 CN CN202210412192.1A patent/CN114739492A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112254661A (en) | On-site calibration method and equipment for marine fiber grating strain sensor | |
| CN105836569A (en) | Elevator weighing device | |
| CN102351120A (en) | Elevator lift car load weighing device | |
| CN201932851U (en) | Tower type crane and balance detection device thereof | |
| CN106124123B (en) | A kind of torque sensor spends experimental provision surely | |
| CN217331333U (en) | Weighing device for signal acquisition board of shaft pin sensor | |
| CN114739492A (en) | Weighing device for signal acquisition board of shaft pin sensor | |
| CN210505130U (en) | Elevator overload device tester | |
| CN215811364U (en) | Rigging pulling force on-line monitoring platform | |
| CN201408072Y (en) | Large-scale weight-free calibrating device applied on vehicle scale | |
| CN205772606U (en) | A kind of elevator weighing apparatus | |
| CN104897401A (en) | Bearing static performance testing apparatus | |
| CN213543995U (en) | Novel hinge test equipment | |
| CN204612930U (en) | A kind of bearing static properties test unit | |
| CN210166057U (en) | Intelligent force-measuring friction pendulum support | |
| CN212127298U (en) | Welding-free tower crane hoisting weight measuring mechanism | |
| CN219956700U (en) | Calibration system of suspended container overload and unbalanced load detection device | |
| CN207964065U (en) | A kind of counterweight for electronic crane scale detection device loads zero balance device | |
| CN216349339U (en) | Clamp for tensiometer test | |
| CN220854079U (en) | Loading tool suspension mechanism of hub bearing rigidity testing machine | |
| CN210528287U (en) | Welding-free crane luffing rope force measuring mechanism | |
| CN220524881U (en) | Bridge dynamic deflection measuring device | |
| CN105738091B (en) | Armored vehicle comprehensive actuator support base horizontal radial stress Calibrating experimental bench | |
| CN220649764U (en) | Hydraulic weight indicator calibrating device | |
| CN220131746U (en) | Hoisting machinery load measuring mechanism |
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 |