CN214087384U - Strut for replacing door machine weight sensor - Google Patents
Strut for replacing door machine weight sensor Download PDFInfo
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- CN214087384U CN214087384U CN202022821928.XU CN202022821928U CN214087384U CN 214087384 U CN214087384 U CN 214087384U CN 202022821928 U CN202022821928 U CN 202022821928U CN 214087384 U CN214087384 U CN 214087384U
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- weight sensor
- frame
- strut
- pulley
- support
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- 230000007547 defect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model discloses a strut for replacing a door machine weight sensor, which is used for overcoming the defects that the weight sensor of the existing door machine needs to be manually disassembled from the related parts of the weight sensor and then is fixed by lifting and pulling a pulley hanger pressed on the weight sensor, the operation is complex, the time consumption is long due to the multiple labor consumption, and the long-time operation influences the unloading and reduces the enterprise credit; the high-strength operation part is safe when people are at a high position, and the disassembled parts are easy to fall to hurt people or objects. The strut frame can be transversely supported between the vertical rack of the gantry crane and the pulley hanger, the two ends of the frame body are oppositely provided with forward and reverse screw holes, and forward and reverse screw rods with supports at the outer ends are respectively screwed in the corresponding screw holes on the frame body; the frame is rotated to enable the two supports to extend outwards to push the pulley hanger to swing outwards, so that the weight sensor can be separated from the frame, and the weight sensor is replaced without disassembling related components. The support frame is simple in structure, convenient to operate, easy to carry, safe and efficient to use, low in labor intensity and convenient to popularize and apply.
Description
Technical Field
The utility model belongs to the subsidiary facility, specifically speaking are strut that uses when the weight sensor of gantry crane is changed in the dismouting.
Background
In order to ensure the safe production of the gantry crane and avoid safety accidents caused by overload, a weight sensor is generally arranged on a frame of a gantry crane, the loaded weight of the gantry crane is transmitted to an operation and control room through the weight sensor, and the gantry crane is remotely controlled to overload by an operation and control system.
The partial structure of the door machine part provided with the weight sensor is shown in figure 1: a support arm 1.1 extending leftwards is transversely arranged on a vertical surface of the gantry crane frame 1, the upper part of a pulley hanger 4 with a pulley 5 arranged at the left lower side is rotatably penetrated in a support hole at the left side of the support arm 1.1 by a pin shaft 1.11, and the pulley hanger 4 is deflected to the right side for supporting; a hole parallel to the supporting hole on the support arm 1.1 is arranged on the left side of the lower part of the pulley hanger 4, and a pulley 5 is rotatably supported on the shaft 5.1 through the hole; the upper part of the steel wire rope sleeve 3 is connected to the grab bucket of the gantry crane, the lower part of the steel wire rope sleeve 3 is sleeved in the wheel groove of the pulley 5, and the compression roller 7 presses the outer side of the steel wire rope sleeve 3 to prevent the steel wire rope sleeve from jumping out of the wheel groove; on the lower right side of the pulley hanger 4, a vertical touch panel 4.1 perpendicular to the front and rear side wall panels 4.2 of the pulley hanger 4 is arranged, and a weight sensor 6 of which a contact 6.1 is opposite to the touch panel 4.1 is transversely arranged on a transverse support 1.2 of the frame 1 on the right side of the touch panel 4.1.
When the portal crane works, the grab bucket grabs and transports materials to a required place for unloading, when the grab bucket grabs the materials, the materials can drop under the action of gravity, as the steel wire rope sleeve 3 connected to the grab bucket is sleeved on the pulley 5 on the pulley hanger 4, the dropping of the grab bucket forces the lower part of the pulley hanger 4 supported by the right side to swing right, the vertical contact plate 4.1 of the grab bucket extrudes the contact 6.1 of the weight sensor 6, and signals are transmitted to the control room through the signal wire 6.2 of the weight sensor 6;
when the load capacity of the grab exceeds the allowable load value, the more overweight the right swinging amount of the lower part of the pulley hanger 4 is increased, the contact plate 4.1 is further pushed and pressed against the contact 6.1 of the weight sensor 6, the overweight information is transmitted to the control room, and the control room sends an instruction to cut off the power, so that the overload of the grab of the gantry crane is controlled, the safety accident is avoided, and therefore the weight sensor 6 is an important component part for ensuring the safety production of the gantry crane.
The portal crane on the port is busy in loading and unloading operation throughout the year, the weight sensor works synchronously with the portal crane, so that faults inevitably occur and accurate information cannot be transmitted, and sometimes, load abnormity can be displayed under the condition of normal load, so that an electric control system is frequently tripped, and great impact is brought to a motor and a steel structure of a portal crane lifting mechanism; sometimes, a normal signal is sent out by mistake during overload, so that a safety accident occurs. Therefore, the normal work of the weight sensor must be ensured, and once abnormity is found, the weight sensor needs to be replaced and maintained in time, the performance of the weight sensor is recovered, and the safe and stable operation of the gantry crane is ensured.
The gantry crane is heavy machinery, the hoisting part of the gantry crane is heavy and high in position, the gantry crane is very inconvenient to detach, repair, replace and install, and the weight sensor 6 is transversely pushed by the pulley hanger 4, so that the transverse pushing of the pulley hanger 4 is firstly released during replacement, and the weight sensor and the pulley hanger can be separated from each other. The pulley hanger 4 is restricted by the steel wire rope sleeve 3 and the compression roller 7, the weight sensor 6 cannot be separated without using tools, if the existing general tools such as a jack are used, on one hand, the weight is large, the used position is high, the transverse suspended bearing is difficult to transversely install between the two, and the adjusting length of the general tools is limited, so that the pulley hanger can be suitable for being used on site and cannot be found easily.
The present separation method of the pulley hanger 4 from the weight sensor 6 is: associated parts on the weight sensor 6 are removed firstly, namely the tension pressing roller 7 pressed on the steel wire rope sleeve 3 is detached, the steel wire rope sleeve 3 is pulled out from the sliding groove of the pulley 5 by a crow bar manually, the lower part of the pulley hanger 4 is pulled and lifted leftwards and upwards by the chain block and then fixed, and then the weight sensor 6 can be detached and replaced.
The whole separation process is complicated to operate, at least 2 persons can finish the separation process within about 1 hour, the persons stand at a high place to do strength type work, the problems of being extruded or slipping of feet and the like can occur accidentally, and if the disassembled parts fall to the ground from the high place, the later fruits cannot be imagined; meanwhile, the replacement operation takes long production time, and the ship cannot be unloaded in time, so that the ship is pressed, economic loss is caused to a ship owner, and the credit of loading and unloading enterprises is influenced.
How to separate the weight sensor from the extrusion of the pulley hanger and not need the procedures of disassembling, hanging, pulling, fixing related parts and the like before replacement is a problem which needs to be solved urgently at present.
Disclosure of Invention
The utility model aims to solve the technical problems that the weight sensor which is replaced by the pulley hanger and extruded at the prior art is complicated to separate, and people are easy to be injured and fall down due to the force type operation of a plurality of people in high altitude; the whole operation process occupies long production time, and the defects that the enterprise reputation is influenced due to the fact that unloading cannot be carried out timely are overcome.
In order to solve the above problems existing in the prior art, the utility model discloses an adopt following technical scheme to realize:
the gantry crane capable of being transversely supported on the upper portion of the weight sensor erects a support frame between a rack and a pulley hanger, screw holes in the forward and reverse directions are oppositely formed in two ends of a long frame body, two forward and reverse screw rods are respectively screwed in the corresponding screw holes, and supports capable of being in contact with the erected rack and the pulley hanger are respectively arranged at the outer end heads of the forward and reverse screw rods.
The utility model discloses still have following technical characteristic:
the frame body of the support frame is of a long hollow flat structure, the central position of the frame body in the length direction is positioned on the outer side surface of the long frame, two through holes with intersecting central lines are arranged perpendicular to the central lines of screw holes at two ends of the frame body, and the deflector rod can be inserted into the through holes in a back-and-forth pumping manner;
the support of the outer end of the forward and reverse screw rod is as follows: the support of the end contacted with one side of the vertical frame is a disc-shaped support leg with anti-skid grains on the bottom surface; the support of the end contacted with one side of the pulley hanger is a U-shaped fork seat opposite to the side wall plates of the pulley hanger, and two U-shaped grooves arranged on the U-shaped fork seat can be respectively clamped on the wall plates;
and a screw hole is formed in the outer side wall of the U-shaped groove on one side of the U-shaped fork seat, and a fastening screw is screwed in the screw hole.
When the weight sensor needs to be replaced, the two ends of a forward and reverse screw rod installed on the frame body of the support frame are adjusted, so that the support frame can be properly placed between the vertical rack and the pulley hanging bracket on the upper portion of the weight sensor, the support of the outer end of the screw rod on one side is fixed by leaning against the position needing to be contacted, the frame body of the support frame is rotated to enable the support of the outer end of the screw rod on the other side to lean against the opposite contact side, the pulley hanging bracket can be further externally supported by continuously rotating the frame body, and the pulley hanging bracket is separated from the contact of the weight sensor.
The utility model has the advantages and positive effects that because the strut that the extrusion of pulley gallows to weighing transducer was used is removed, install the screw rod that the screw thread is opposite at the both ends of microscler framework, place the strut wholly on the door machine and erect the support on the screw rod between frame and the pulley gallows, it can make the strut extension to rotate the framework, just can make the pulley gallows leave the weighing transducer that needs to be changed, whole operation process need not to demolish any part on the door machine, also need not to dial out the wire rope cover from the inslot of pulley, more need not to fix the pulley gallows that pulls up again, just above-mentioned work can easily be accomplished in 15 minutes alone, thereby the safety of people and thing has been guaranteed; the operation occupies short production time, ensures the timely loading and unloading of the ship-loaded goods, ensures that enterprises gain good credit, and is safe and efficient to use.
The support frame is simple in structure, convenient to carry and low in manufacturing cost, greatly reduces the labor intensity of workers in work, improves the maintenance efficiency, eliminates potential safety hazards in the replacement process, and is safe and reliable to use and convenient to popularize and apply.
Drawings
Fig. 1 is a schematic front view of the door machine in use;
FIG. 2 is an enlarged front view of the structure of the present invention;
FIG. 3 is a schematic structural view of a screw mounted at one end of the stay of FIG. 2;
FIG. 4 is a schematic structural view of a screw rod mounted at the other end of the support in FIG. 2;
FIG. 5 is a partial cross-sectional view of the frame structure of the brace of FIG. 2;
fig. 6 is a top partial cross-sectional view of fig. 5.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
In fig. 1, a local structure of a strut 2 of the utility model used on a gantry crane is that a support arm 1.1 extending leftwards is transversely arranged on a vertical frame 1, a pulley hanger 4 of a pulley 5 is arranged at the lower left side, and the upper part of the pulley hanger is rotatably penetrated in a support hole at the left side of the support arm 1.1 by a pin shaft 1.11; a hole parallel to the supporting hole on the support arm 1.1 is arranged on the left side of the lower part of the pulley hanger 4, and the pulley 5 is rotatably supported on the shaft 5.1 through the hole, so that the supporting point of the upper part of the pulley hanger 4 with the pulley 5 arranged on the left lower side is deviated to the right side of the gravity center; the lower part of a steel wire rope sleeve 3 with the upper part connected to the grab bucket of the gantry crane is sleeved in a wheel groove around a pulley 5, and the left side of the steel wire rope sleeve 3 is provided with a compression roller 7 for tensioning; a vertical touch plate 4.1 is arranged on the pulley hanger 4 on the right side of the pulley 5; the right side of the contact plate 4.1 is positioned on the frame 1 of the gantry crane, and a contact 6.1 of the contact plate is transversely provided with a weight sensor 6 opposite to the contact plate 4.1;
the strut 2 which is positioned in the space between the support arm 1.1 and the weight sensor 6 up and down and can be supported against the pulley hanger 4 and the upright rack 1 at the left and right ends is transversely installed, the strut 2 comprises a long frame body 2.3 and forward and reverse screw rods 2.11 and 2.51 (see figures 2, 3 and 4) installed on the long frame body, forward and reverse screw holes 2.31 and 2.33 (see figures 2, 5 and 6) are oppositely and respectively arranged at the two ends of the frame body 2.3 in the length direction, the forward and reverse screw rods 2.11 and 2.51 are respectively screwed in the corresponding screw holes, the outer end heads of the forward and reverse screw rods 2.11 and 2.51 are respectively and fixedly provided with a support seat, when the support seat at one end is fixedly leaned against the upright rack 1 or the pulley hanger 4, the support seat at the other end is propped against the opposite surface when the strut 2.3 of the rotating frame 2.3 is lengthened, the length of the strut 2.3 is further increased when the rotating frame is continuously rotated, because the position of the upright rack 1 is fixed, the pulley hanger 4 can swing around the support pin shaft 1 to be supported away from the weight sensor 6, when the pressed state is released, it becomes very easy to replace the weight sensor 6.
The frame body 2.3 on the support frame 2 is a long hollow flat structure (see fig. 5 and 6), in order to make the forward and reverse screw rods 2.11 and 2.51 on the frame body convenient and labor-saving to stretch, a through hole 2.32 is arranged at the center position of two outer sides of the long frame of the frame body 2.3 and is vertical to the center line of the screw hole on the frame body 2.3, the center line of the through hole 2.32 is intersected with the center line of the screw hole, the deflector rod 2.4 is inserted into the through hole 2.32, and the deflector rod 2.4 is moved to drive the frame body 2.3 to rotate, so that the whole length of the support frame 2 can be adjusted; the driving rod 2.4 is drawn back and forth in the through hole 2.32, so that the driving rod can be prevented from touching other surrounding parts when rotating in an extending mode under the condition of increasing the length of the force arm.
The supports of the outer end heads of the forward and reverse screws 2.11 and 2.51 are as follows: one end of the support leg 2.52 which is contacted with one side of the vertical frame 1 is a disc-shaped support leg 2.52 (see figures 2 and 4) with an anti-skid grain 2.521 on the bottom surface; in order to facilitate the positioning of the support contacting one side of the pulley hanger 4, the end support is arranged to be opposite to the U-shaped fork seats 2.12 (see fig. 2 and 3) of the front and the rear wall plates 4.2 of the pulley hanger 4, and the U-shaped grooves 2.121 on the two sides of the U-shaped fork seat 2.12 can be respectively clamped on the two wall plates 4.2 of the pulley hanger 4;
in order to facilitate the length adjustment when the supporting frame 2 is installed, a screw hole is formed on an outer side wall of the U-shaped groove 2.121, and a fastening screw 2.2 screwed into the screw hole presses and fixes the wall plate 4.2 inserted into the U-shaped groove 2.121 (see fig. 2 and 3). Before the pulley hanger 4 is supported away from the weight sensor 6, the strut 2 is taken between the pulley hanger 4 and the vertical rack 1, at the moment, the strut 2 is still in a suspended state, then the U-shaped groove 2.121 is clamped on the two wall plates 4.2, the fastening screw 2.2 is screwed down to enable one end of the strut 2 to be stably supported, then the deflector rod 2.4 is moved to drive the frame body 2.3 to rotate to enable the forward and reverse screw rods 2.11 and 2.51 to be externally supported, the disc-shaped support leg 2.52 is firstly abutted against the vertical rack 1, and the deflector rod 2.4 is continuously moved to enable the contact plate 4.1 of the pulley hanger 4 to leave the weight sensor 6.
The above embodiments are only illustrative illustrations of the present invention, not the only technical solutions, and all modifications or equivalent replacements performed by the technical solutions of the present invention as the gist are within the protection scope of the present invention.
Claims (4)
1. The utility model provides a change strut that door machine weight sensor used which characterized in that: the gantry crane capable of being transversely supported on the upper portion of the weight sensor erects a support frame between a rack and a pulley hanger, forward and reverse screw holes are oppositely formed in two ends of a long frame body, two forward and reverse screw rods are respectively screwed in the corresponding screw holes, and supports capable of being in contact with the erected rack and the pulley hanger are respectively arranged at the outer end heads of the forward and reverse screw rods.
2. The strut for a replacement door machine weight sensor as claimed in claim 1, wherein: the frame body of the support frame is of a long hollow flat structure, the center of the frame body in the length direction is positioned on the outer side face of the long frame, two through holes with intersecting center lines are arranged perpendicular to the center lines of screw holes at two ends of the frame body, and the deflector rod can be inserted into the through holes in a back-and-forth drawing mode.
3. The strut for a replacement door machine weight sensor as claimed in claim 1, wherein: the support of the outer end of the forward and reverse screw rod is as follows: the support of the end contacted with one side of the vertical frame is a disc-shaped support leg with anti-skid grains on the bottom surface; the support of the end contacted with one side of the pulley hanger is a U-shaped fork seat opposite to the side wall plates of the pulley hanger, and two U-shaped grooves arranged on the U-shaped fork seat can be respectively clamped on the wall plates.
4. The strut for a replacement door machine weight sensor as claimed in claim 3, wherein: and a screw hole is formed in the outer side wall of the U-shaped groove on one side of the U-shaped fork seat, and a fastening screw is screwed in the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821928.XU CN214087384U (en) | 2020-11-30 | 2020-11-30 | Strut for replacing door machine weight sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821928.XU CN214087384U (en) | 2020-11-30 | 2020-11-30 | Strut for replacing door machine weight sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214087384U true CN214087384U (en) | 2021-08-31 |
Family
ID=77454315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022821928.XU Expired - Fee Related CN214087384U (en) | 2020-11-30 | 2020-11-30 | Strut for replacing door machine weight sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214087384U (en) |
-
2020
- 2020-11-30 CN CN202022821928.XU patent/CN214087384U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210831 |