CN215160394U - Novel anti-falling device of truss lifting structure - Google Patents
Novel anti-falling device of truss lifting structure Download PDFInfo
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- CN215160394U CN215160394U CN202121076177.1U CN202121076177U CN215160394U CN 215160394 U CN215160394 U CN 215160394U CN 202121076177 U CN202121076177 U CN 202121076177U CN 215160394 U CN215160394 U CN 215160394U
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Abstract
The utility model relates to a novel truss elevation structure's anti-falling device, including Y axle crossbeam, Z axle longeron, air supply, Z axle guide rail, servo motor, Z axle rack, gear, cylinder dead lever, guide's formula one-way speed control valve, two three-way valves of normal general formula, two three-way valves of normal close formula. The beneficial effects are that: the anti-falling device can prevent the truss from falling down in time through the device even if a servo motor is powered off or the gears and the motor are braked and failed in the lifting working process, and can balance certain load to reduce the motor and gear load and prolong the service life of equipment in the lifting process.
Description
Technical Field
The utility model relates to a truss elevation structure field especially relates to a novel truss elevation structure's anti-falling device.
Background
The truss lifting structure consists of a Z-axis lifting arm, a slide rail guide device and a servo motor gear driving device, and in practical application, under the condition that the truss bears a load, the servo motor drives the Z-axis to lift up and down through the cooperation of a gear and a rack.
In the production process of load lifting of the existing truss, the power failure of a servo motor happens occasionally, even the gear or a gear shaft is broken, and even if the servo motor is provided with a band-type brake, the brake failure occurs due to too large load, so that the truss falls rapidly to cause serious safety accidents.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide a novel truss elevation structure's anti-falling device.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
an anti-falling device of a novel truss lifting structure comprises a Y-axis cross beam, a Z-axis longitudinal beam and an air source, wherein a Z-axis guide rail and a servo motor are installed at the front part of the Y-axis cross beam, a Z-axis rack is installed on the left side of the Z-axis longitudinal beam, a gear meshed with the Z-axis rack is installed on a power output shaft of the servo motor, the back surface of the Z-axis longitudinal beam is connected with a sliding block of the Z-axis guide rail through a bolt, an air cylinder is installed on the right side of the Z-axis longitudinal beam, an air cylinder fixing rod is further fixedly installed at the front part of the Y-axis cross beam, the tail end of a piston rod of the air cylinder is connected with the air cylinder fixing rod through a hinged seat, a pilot type one-way speed control valve is installed at one end of the air cylinder, which is provided with a piston rod, a normally-closed type two-way three-way valve and a normally-closed type two-way three-way valve are installed at the front side of the Z-axis longitudinal beam, the speed control valve port is communicated with an air outlet port of the normally-closed type two-way three-way valve through an air pipe, the one-way valve port of the pilot-operated one-way speed control valve is communicated with the air outlet port of the normally closed two-position three-way valve through an air conveying pipe, and the outlet of the air source is respectively communicated with the air outlet port of the normally closed two-position three-way valve and the air outlet port of the normally closed two-position three-way valve through the air conveying pipe.
Furthermore, an exhaust throttle valve with a silencer is mounted at one end of the cylinder, which is far away from the piston rod.
Wherein, the air supply includes air pressure source, air cleaner, overflow valve, pressure gauge that connect gradually.
The utility model has the advantages that: when the servo motor is powered off, the normally closed two-position three-way valve acts to flush high-pressure gas into the piston rod end of the cylinder, the cylinder is pulled to move upwards, and the load is balanced to achieve the purpose of preventing falling; when the power is normally switched on but the gear or the gear shaft is broken, the air flow discharge speed of the air cylinder far away from the piston rod end is reduced through the exhaust throttle valve, so that the falling speed is buffered; the anti-falling device can prevent the truss from falling down in time through the device even if a servo motor is powered off or the gears and the motor are braked and failed in the lifting working process, and can balance certain load to reduce the motor and gear load and prolong the service life of equipment in the lifting process.
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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the anti-falling device of the present invention;
FIG. 2 is a front view of an embodiment of the fall arrest device;
FIG. 3 is a top view of an embodiment of the fall arrest device;
fig. 4 is a schematic structural diagram of a pneumatic component in an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a novel anti-falling device of truss lifting structure comprises a Y-axis beam 1, a Z-axis longitudinal beam 2 and an air source 3, wherein a Z-axis guide rail 4 is installed at the front part of the Y-axis beam 1, a servo motor 5 is installed at the left side of the Z-axis longitudinal beam 2, a gear meshed with the Z-axis gear 6 is installed on a power output shaft of the servo motor 5, the back surface of the Z-axis longitudinal beam 2 is connected with a sliding block of the Z-axis guide rail 4 through a bolt, an air cylinder 7 is installed at the right side of the Z-axis longitudinal beam 2, an air cylinder fixing rod 8 is further fixedly installed at the front part of the Y-axis beam 1, the tail end of a piston rod of the air cylinder 7 is connected with the air cylinder fixing rod 8 through a hinged seat 9, a pilot-type one-way speed control valve 10 is installed at one end of the air cylinder 7 with the piston rod, a normally closed type two-way three-way valve 11 and a normally closed type three-way valve 12 are installed at the front surface of the Z-axis longitudinal beam 2, and a speed control valve port of the pilot type one-way speed control valve 10 is connected with an air outlet of the normally-way three-way valve 11 through a three-way valve The ports are communicated, the one-way valve port of the pilot-operated type one-way speed control valve 10 is communicated with the air outlet port of the normally closed type two-position three-way valve 12 through an air conveying pipe, and the outlet of the air source 3 is respectively communicated with the air outlet port of the normally closed type two-position three-way valve 11 and the air outlet port of the normally closed type two-position three-way valve 12 through the air conveying pipe. An exhaust throttle valve 13 with a silencer is arranged at one end of the cylinder 7 far away from the piston rod.
Specifically, the gas source 3 includes an air pressure source 14, an air filter 15, an overflow valve 16 and a pressure gauge 17 which are connected in sequence, the air pressure source 14 is used for generating and storing high-pressure gas, the air filter 15 is used for filtering the high-pressure gas and filtering particles and water in the high-pressure gas, the overflow valve 16 plays a role in overpressure protection and avoids damage to pneumatic components due to overlarge pressure, and the pressure gauge 17 is used for detecting the air pressure of the high-pressure gas.
In a power-on state, the normally-closed two-position three-way valve keeps introducing low-speed gas to the piston rod end of the cylinder, so that the Z-axis longitudinal beam can be lifted normally at a certain speed;
when the servo motor is powered off, the normally closed two-position three-way valve acts to flush high-pressure gas into the piston rod end of the cylinder, the cylinder is pulled to move upwards, and the load is balanced to achieve the purpose of preventing falling;
when the power is normally switched on but the gear or the gear shaft is broken, the exhaust throttle valve is used for reducing the air flow exhaust speed of the air cylinder far away from the piston rod end, and therefore the effect of buffering the falling speed is achieved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a novel truss elevation structure's anti-falling device, includes Y axle crossbeam, Z axle longeron, air supply, the forward-mounted of Y axle crossbeam has Z axle guide rail, servo motor, Z axle rack is installed in the left side of Z axle longeron, servo motor's last gear of installing with Z axle rack engaged with of power output shaft, the back of Z axle longeron and the bolted connection for the slider of Z axle guide rail, its characterized in that: the air cylinder is installed on the right side of the Z-axis longitudinal beam, an air cylinder fixing rod is further fixedly installed on the front portion of the Y-axis cross beam, the tail end of a piston rod of the air cylinder is connected with the air cylinder fixing rod through a hinged seat, a pilot type one-way speed control valve is installed at one end, provided with the piston rod, of the air cylinder, a normally-closed two-position three-way valve and a normally-closed two-position three-way valve are installed on the front face of the Z-axis longitudinal beam, a speed control valve port of the pilot type one-way speed control valve is communicated with an air outlet port of the normally-closed two-position three-way valve through an air conveying pipe, a one-way valve port of the pilot type one-way speed control valve is communicated with an air outlet port of the normally-closed two-position three-way valve through the air conveying pipe, and an outlet of the air source is respectively communicated with the air outlet port of the normally-closed two-position three-way valve and the air outlet port of the normally-closed two-position three-way valve through the air conveying pipe.
2. The fall arrest device according to claim 1, wherein: and an exhaust throttle valve with a silencer is arranged at one end of the cylinder, which is far away from the piston rod.
3. The fall arrest device according to claim 1, wherein: the air source comprises an air pressure source, an air filter, an overflow valve and a pressure gauge which are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076177.1U CN215160394U (en) | 2021-05-19 | 2021-05-19 | Novel anti-falling device of truss lifting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076177.1U CN215160394U (en) | 2021-05-19 | 2021-05-19 | Novel anti-falling device of truss lifting structure |
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| Publication Number | Publication Date |
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| CN215160394U true CN215160394U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121076177.1U Active CN215160394U (en) | 2021-05-19 | 2021-05-19 | Novel anti-falling device of truss lifting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523041A (en) * | 2022-04-22 | 2022-05-24 | 合肥合锻智能制造股份有限公司 | Indirect thermoforming preheats production facility |
-
2021
- 2021-05-19 CN CN202121076177.1U patent/CN215160394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523041A (en) * | 2022-04-22 | 2022-05-24 | 合肥合锻智能制造股份有限公司 | Indirect thermoforming preheats production facility |
| CN114523041B (en) * | 2022-04-22 | 2022-07-15 | 合肥合锻智能制造股份有限公司 | Indirect thermoforming preheats production facility |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yong Inventor after: Liu Peng Inventor before: Zhang Yong Inventor before: Liu Ming |