CN112249916A - Protective device for crown block - Google Patents
Protective device for crown block Download PDFInfo
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- CN112249916A CN112249916A CN202011165646.7A CN202011165646A CN112249916A CN 112249916 A CN112249916 A CN 112249916A CN 202011165646 A CN202011165646 A CN 202011165646A CN 112249916 A CN112249916 A CN 112249916A
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- wheel
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- protection
- piece
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- 230000001681 protective effect Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 abstract description 6
- 239000002360 explosive Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000001012 protector Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000004693 Polybenzimidazole Substances 0.000 description 2
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- 229920002480 polybenzimidazole Polymers 0.000 description 2
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- 230000001154 acute effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
- B66C17/08—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for charging treatment chambers, e.g. furnaces, kilns, ovens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P1/00—Safety devices independent of the control and operation of any machine
- F16P1/02—Fixed screens or hoods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to a protective device for a crown block, which comprises a driving part, a transmission assembly, a guide part and a plurality of protective plates, wherein the driving part is arranged on the driving part; the protection plates are arranged on the guide piece and are arranged along the length direction of the guide piece, and the edges of every two adjacent protection plates are hinged, so that the protection plates can be unfolded or folded along the length direction of the guide piece; guide wheels matched with the guide pieces are arranged at the hinged positions of the protection plates at intervals, and the guide wheels are rotatably arranged on the guide pieces; the driving piece is linked with the guide wheel through the transmission assembly and is used for driving the guide wheel to rotate, so that the guide wheel slides along the length direction of the guide piece, and the plurality of protection plates are driven to be unfolded or folded. The invention can prevent operators from being injured when the inflammable cold material is filled and the explosive explosion happens, can play an effective protection effect, and can use or close the protection device according to the operation requirement, thereby avoiding the protection device from influencing other operations, and further improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of crown block operation, in particular to a protective device for a crown block.
Background
Generally, the furnace environment of a steel plant of an iron and steel enterprise is in a high-temperature, high-dust-emission and corrosive gas environment for a long time, particularly the operation of a crown block in a furnace front area, and the working condition is worse. The crown block in front of the converter is mainly used for charging molten iron, scrap steel and various alloy components into the converter. High-temperature splashes often appear in the process of filling materials such as molten iron and the like, particularly, when flammable alloy cold materials are filled, more powder of the alloy cold materials can be combusted and possibly explode during filling, the combustion and the splashing are easy to occur, and the splashes possibly break through the explosion-proof glass of the crown block cab and damage operators in the cab.
In order to prevent an operator from being injured when the flammable and cold materials are filled and the operator is exploded, appropriate protective measures are often taken for the operator, such as wearing protective articles or adopting measures such as thickening explosion-proof glass during operation. The wearing of the protective articles can affect the operation of non-feeding or the operation of filling non-combustible fuel, cause the operation difficulty during other operations and affect the working efficiency. The cost of thickening explosion-proof glass is on the high side, and explosion-proof glass still has cracked risk, and the protective effect is comparatively general.
In summary, an effective way for protecting the operator of the overhead traveling crane is lacked in the prior art, and the existing overhead traveling crane protection way has the defects of affecting the working efficiency and the protection effect generally.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a protective device for an overhead travelling crane. The invention can prevent operators from being injured when the inflammable cold material is filled and the explosive explosion happens, can play an effective protection effect, and can use or close the protection device according to the operation requirement, thereby avoiding the protection device from influencing other operations, and further improving the working efficiency.
The technical purpose of the invention is realized by the following technical scheme: a protective device for a crown block comprises a driving part, a transmission assembly, a guide part and a plurality of protective plates; the protection plates are arranged on the guide piece and are arranged along the length direction of the guide piece, and the edges of every two adjacent protection plates are hinged, so that the protection plates can be unfolded or folded along the length direction of the guide piece;
guide wheels matched with the guide pieces are arranged at the hinged positions of the protection plates at intervals, and the guide wheels are rotatably arranged on the guide pieces;
the driving part is linked with the guide wheel through the transmission assembly and is used for driving the guide wheel to rotate, so that the guide wheel slides along the length direction of the guide part to drive the protection plates to be unfolded or folded.
In one embodiment, the transmission assembly comprises a driving wheel and a synchronizing member, the driving member is linked with the driving wheel, and the synchronizing member is linked with the driving wheel and the guide wheel respectively.
In one embodiment, the synchronizing member is a conveyor belt.
In one embodiment, the material of the conveyor belt is a steel wire rope.
In one embodiment, the synchronizing member is a drive chain.
In one embodiment, the transmission assembly further comprises a driven wheel, the driving wheel and the driven wheel are respectively arranged at two ends of the guide piece in the length direction, and the driven wheel is linked with the synchronizing piece.
In one embodiment, the guide member comprises a pair of guide rails arranged in parallel, the guide rails are U-shaped guide rails, and the concave surfaces of the two guide rails are opposite.
In one embodiment, one of the guide wheels at the end of the guide member is connected to the guide member for limiting the relative sliding movement of the guide wheel and the guide member.
In one embodiment, at least one of the protection plates is provided with a through observation port.
In one embodiment, a transparent baffle is arranged at the observation port.
In conclusion, the invention has the following beneficial effects:
1. the protection plate is arranged in front of an operator after being unfolded, so that high-temperature splashes generated during explosion can be blocked, an effective protection effect can be achieved, and the operator can be prevented from being injured during explosion when flammable and cold materials are filled.
2. The protective devices are unfolded or folded through the relative rotation of the protective plates, and can be folded during non-charging operation or non-combustible charging operation, so that the protective devices are prevented from influencing other operation processes, and the working efficiency is improved.
3. The driving piece is matched with the transmission assembly to drive the protection plate to be unfolded or folded, manual operation is not needed, and the use and the operation are convenient.
Drawings
FIG. 1 is a schematic structural diagram of a protection device for a crown block according to the present invention;
FIG. 2 is a front view of a crown block guard of the present invention;
fig. 3 is a side view of a protection plate of a crown block protector in a folded state.
In the figure: 1-driving piece, 2-transmission component, 21-driving wheel, 22-synchronizing piece, 23-driven wheel, 3-guiding piece, 4-protection plate, 5-guiding wheel and 6-articulated shaft.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
As shown in fig. 1 to 3, the protection device for the overhead travelling crane of the present invention includes a driving member 1, a transmission assembly 2, a guide member 3, and a plurality of protection plates 4, wherein the plurality of protection plates 4 are disposed on the guide member 3 and arranged in a row along a length direction of the guide plate. The protection plate 4 is a metal square plate, such as an aviation aluminum plate with the thickness of 3-6 mm. In some preferred embodiments, the protection plate 4 is further provided with a reinforcing rib to enhance the overall mechanical performance of the protection plate 4.
The plurality of protection plates 4 are arranged along the length direction of the guide 3, and the edges of every two adjacent protection plates 4 are hinged, so that the plurality of protection plates 4 can be unfolded or folded along the length direction of the guide 3. Specifically, both ends of the long edges of the two sides of the protection plate 4 extend outwards to form hinged parts, the hinged parts on the two sides of the same protection plate 4 are staggered with each other, hinged holes penetrating along the length direction of the protection plate 4 are formed in the hinged parts, hinged shafts 6 matched with the hinged holes are additionally arranged, and the hole diameters of the hinged holes are slightly larger than the shaft diameters of the hinged shafts 6. As shown in fig. 1, the long edges of two adjacent protection plates 4 are in contact with each other, so that the hinge holes of the hinge parts of the two protection plates 4 are aligned, and the hinge shaft 6 passes through the hinge holes of the two adjacent protection plates 4 to connect the two adjacent protection plates 4. Because the cooperation relation of hinge hole aperture and 6 footpaths of articulated shaft, make be clearance fit between articulated shaft 6 and the hinge hole, make two protection plates 4 all can rotate around articulated shaft 6, and then realize the articulated of two adjacent protection plates 4, make two protection plates 4 can relatively rotate to as shown in figure 1 state, the contained angle that two protection plates 4 become is the obtuse angle, protector is in the state of expanding, two protection plates 4 also can relatively rotate to as shown in figure 3 state, the contained angle that two protection plates 4 become is the very little acute angle of angle, protector is in fold condition this moment. The manner of articulation between the remaining adjacent panels 4 can be understood with reference to the above description and will not be described in detail.
The edge of the protection plate 4 is provided with guide wheels 5 matched with the guide parts 3 at intervals, and the guide wheels 5 are rotatably arranged on the guide parts 3. Specifically, taking the structure shown in fig. 1 as an example, in this embodiment, the number of the protection plates 4 is four, for convenience, and taking the direction shown in fig. 1 as an example, the four protection plates 4 are sequentially named as a first protection plate, a second protection plate, a third protection plate and a fourth protection plate from top to bottom, the number of the guide wheels 5 is three, the four protection plates are sequentially named as a first guide wheel, a second guide wheel and a third guide wheel from top to bottom, the first guide wheel is arranged at the upper edge of the first protection plate, the second guide wheel is arranged at the hinge position of the second protection plate and the third protection plate, and the third guide wheel is arranged at the lower edge of the fourth protection plate. Leading wheel 5 is connected with guard plate 4, and when leading wheel 5 rotated on guide 3, leading wheel 5 can slide along the length direction of guide 3 simultaneously, and the border department that drives guard plate 4 simultaneously slides along the length direction of guide 3, and then makes polylith guard plate 4 expand or fold. It should be noted that the number of the protection plates 4 and the guide wheels 5 is not limited to the above limitation, and in the practical application process, an appropriate number of the protection plates 4 may be selected according to the protection requirement and the size of the protection plates 4, and the guide wheels 5 are disposed at corresponding positions to achieve the above actions, which can be understood by referring to the above contents, and the above is only one possible embodiment of the present invention.
The driving piece 1 is linked with the guide wheel 5 through the transmission assembly 2 and is used for driving the guide wheel 5 to rotate, so that the guide wheel 5 slides along the length direction of the guide piece 3, and the protection plates 4 are driven to be unfolded or folded. The driving member 1 may be a servo motor.
The following will describe in detail the usage of the protection device for overhead travelling crane according to the present invention, taking the structure shown in fig. 1 to fig. 3 as an example. The crown block protection device is arranged in a cab of a crown block and can be installed between a window and a cab seat, and the guide piece 3 is fixed in the cab, so that the protection plate 4 faces the cab seat after being unfolded and can shield the cab seat on a plane. When an operator enters the cab to operate the overhead travelling crane to perform work, the protection device for the overhead travelling crane is controlled to be unfolded or folded according to the type of the performed work. Under the overhead traveling crane operating condition, protector is fold condition as shown in fig. 3, and polylith guard plate 4 is pressed close to each other and is folded in the upper end of guide 3, can not shelter from driver's cabin window position. When the operation of carrying out contains the inflammable alloy cold burden for the filling, start driving piece 1, driving piece 1 drives leading wheel 5 through drive assembly 2 and rotates, and then makes leading wheel 5 lapse, leading wheel 5 is at the lapse in-process, drive polylith protection plate 4 and expand relatively gradually, make polylith protection plate 4 expand to as shown in figure 1 state, polylith protection plate 4 expandes this moment between driver's cabin window and driver's cabin seat, can shelter from in operating personnel's the place ahead, play the guard action. After the operation of filling the inflammable alloy containing cold materials is completed, the driving piece 1 can be controlled to rotate reversely, so that the guide wheel 5 rotates reversely, the guide wheel 5 slides upwards, the protection plates 4 are driven to be folded upwards, and the protection device can be folded to reset in the state shown in fig. 3. The operator can operate the overhead travelling crane to perform other operations such as non-refueling operation or refueling operation.
The protection plate 4 is arranged in front of an operator after being unfolded, so that high-temperature splashes generated during explosion can be blocked, an effective protection effect can be achieved, and the operator can be prevented from being injured during explosion when flammable and cold materials are filled.
The protection plates 4 are hinged, the protection device is unfolded or folded through the relative rotation of the protection plates 4, the protection device can be folded when in non-charging operation or non-combustible charging operation, the protection device is prevented from influencing other operation processes, and therefore the working efficiency is improved.
The driving piece 1 is matched with the transmission component 2 to drive the protection plate 4 to be unfolded or folded, manual operation is not needed, and the use and the operation are convenient.
In one embodiment, the transmission assembly 2 includes a driving wheel 21 and a synchronizing member 22, the driving member 1 is linked with the driving wheel 21, and the synchronizing member 22 is linked with the driving wheel 21 and the guide wheel 5 respectively. Specifically, the output shaft of the driving member 1 is connected to the axis of the driving wheel 21, so that the driving wheel 21 and the output shaft of the driving member 1 rotate synchronously, and the synchronizing member 22 is linked with the driving wheel 21 and the guide wheel 5 at the same time, and is used for synchronizing the rotation of the driving wheel 21 to the guide wheel 5, so that the guide wheel 5 rotates synchronously with the driving wheel 21. The structure of the transmission assembly 2 can realize stable motion transmission, and a single driving piece 1 can simultaneously drive a plurality of guide wheels 5 to rotate, thereby simplifying the structure of the device and reducing the cost of the device.
In one embodiment, the synchronizing member 22 is a belt conveyor, the inner belt surface of which is simultaneously in contact with the driving wheel 21 and the outer wheel surface of the guide wheel 5, and the guide wheel 5 and the driving wheel 21 are rotated synchronously by the relative friction between the inner belt surface and the outer wheel surface. The transmission of the conveyor belt is stable, and the synchronous rotation of the guide wheel 5 and the driving wheel 21 can be realized.
In one embodiment, the steel wire rope is selected as the material of the conveyor belt, and the steel wire rope has certain roughness, so that sufficient relative friction force can be provided between the inner side belt surface of the conveyor belt and the outer wheel surfaces of the driving wheel 21 and the guide wheel 5, and further, the synchronous transmission of the conveyor belt is stable and reliable and is not easy to slip. Meanwhile, the steel wire rope is wear-resistant and corrosion-resistant, has long service life, and can reduce the replacement frequency of accessories.
In one embodiment, the synchronizing member 22 is a transmission chain, the driving wheel 21 and the guide wheel 5 are coaxially connected to each other and provided with a synchronizing gear, the synchronizing gear is engaged with the transmission chain, and when the driving member 1 drives the driving wheel 21 to rotate, the synchronizing gear at the driving wheel 21 rotates along with the driving wheel to drive the transmission chain to rotate, and further drives the synchronizing gear at the guide wheel 5 to rotate, so that the guide wheel 5 rotates. Select for use transmission chain as synchronizing member 22, the synchronous rotation of action wheel 21 and leading wheel 5 is realized to the cooperation synchronizing gear, compares in the mode that adopts the conveyer belt, and its required accessory quantity increases, and daily lubricated maintenance that needs, but gear engagement's transmission mode's reliability is higher relatively, and the phenomenon of skidding appears less compared in the mode of conveyer belt, and transmission stability is higher.
The two types of the synchronous pieces 22 can realize synchronous rotation of the driving wheel 21 and the guide wheel 5, have corresponding advantages and disadvantages, and can be selectively arranged according to actual use requirements.
In one embodiment, the transmission assembly 2 further includes a driven wheel 23, the driving wheel 21 and the driven wheel 23 are respectively disposed at two ends of the guide member 3 in the length direction, and the driven wheel 23 is linked with the synchronizing member 22. Specifically, the wheel diameters of the driving wheel 21 and the driven wheel 23 are equal, the axle centers of the driving wheel 21 and the driven wheel 23 are located on the same horizontal line, the synchronizing part 22 surrounds the outer sides of the driving wheel 21 and the driven wheel 23, the inner side surface of the synchronizing part 22 is simultaneously contacted with the outer wheel surfaces of the driving wheel 21 and the driven wheel 23, the driving wheel 21 and the driven wheel 23 respectively support and tighten the synchronizing part 22 from two ends, and each guide wheel 5 is arranged inside the synchronizing part 22 and located between the driving wheel 21 and the driven wheel 23. The driven wheel 23 and the driving wheel 21 are respectively positioned at two ends of the synchronizing member 22, and play a role in supporting and tightening the synchronizing member 22, so that the synchronous transmission process of the synchronizing member 22 is stable, and the synchronizing member 22 rotates stably.
In one embodiment, the guide member 3 comprises a pair of opposite parallel guide rails, the guide rails are U-shaped guide rails, and the concave surfaces of the two guide rails are opposite. Specifically, the guide 3 includes two elongated guide rails, which are arranged in parallel. Correspondingly, the transmission component 2 and the guide wheel 5 are correspondingly arranged in pairs and respectively arranged at the two guide rails so as to realize stable transmission effect. The cross section of the guide rail is U-shaped, a groove is formed in the middle of the guide rail, the width of the groove is slightly larger than the wheel diameter of the guide wheel 5, and the depth of the groove is slightly larger than the thickness of the guide wheel 5, so that the guide wheel 5 can be arranged in the groove and can rotate in the groove along the length direction of the groove, and further the guide wheel 5 can rotate in the length direction of the guide rail. The U-shaped guide rail can limit the guide wheels 5 positioned in the U-shaped guide rail, and the guide wheels 5 are prevented from sliding out of the guide rail. In some preferred embodiments, the two inner side walls of the groove are polished smooth to reduce the relative friction between the guide rail and the guide wheel 5, so that the guide wheel 5 can rotate smoothly. In other preferred embodiments, the edges of the opening of the groove extend towards each other to form welts, and the welts are used for further limiting the movement of the guide wheel 5 in the transverse direction, so that the guide wheel 5 can move stably and cannot be dislocated.
In one of the embodiments, one of the guide wheels 5 at the end of the guide 3 is connected to the guide 3 for limiting the relative sliding of the guide wheel 5 and the guide 3. Specifically, in the present embodiment, the axis of the guide wheel 5 located at the uppermost end of the guide 3 is connected to the side wall of the guide rail by a screw, and the guide wheel 5 is rotatably connected to the screw so that the guide wheel 5 can be rotated, but the guide wheel 5 and the guide rail cannot slide relative to each other by the screw connection action, so that the guide wheel 5 is fixed in the longitudinal direction of the guide rail and does not slide along the guide rail with the rotation of the guide wheel 5. Above-mentioned structure sets up to non-slidable structure through leading wheel 5 with 3 topmost ends of guide to, expandes and folding in-process at polylith guard plate 4, with the leading wheel 5 of topmost end as the stiff end, other leading wheels 5 slide from top to bottom for the leading wheel 5 of topmost end to drive the expansion and folding of polylith guard plate 4, this structure can make the slip of other leading wheels 5 steady, and then makes the expansion and the folding process of guard plate 4 steady.
In one embodiment, at least one of the protection plates 4 is provided with a through observation opening, which is not limited in shape and is generally a rectangular through opening or a circular through opening for easy processing. The size of viewing aperture should not be too big to prevent that high temperature splash from causing the injury to operating personnel through the viewing aperture, the length of rectangle through-hole is about 8cm ~ 10cm usually, the width is about 5cm ~ 6cm usually, the diameter of circular through-hole is about 6cm ~ 8cm usually, operating personnel can be clear through the viewing aperture of this size of a dimension observe the operation condition outside the driver's cabin, the size of viewing aperture is less simultaneously, high temperature splash is difficult for passing, can reduce the risk that high temperature splash caused the injury to operating personnel through the viewing aperture. The setting height of the observation port is not limited, and the observation port is usually set according to the horizontal height of the sight line of an operator in a crown block cab, so that the observation port is flush with the operator and has the optimal height, and the observation port can be conveniently observed by the operator. In a common application example, the observation port is usually arranged at the lower part of the first protection plate 4 from top to bottom.
In one embodiment, a transparent baffle is arranged at the observation port, a transparent baffle made of transparent material is embedded in the specific observation port, and the transparent baffle can be made of explosion-proof glass or high-strength high-temperature-resistant transparent plastic such as Polybenzimidazole (PBI). The transparent baffle can seal observation window department, avoids high temperature splash to pass the risk that the observation window caused the injury to operating personnel completely, and transparent baffle adopts transparent material to make simultaneously, and the operating condition outside the clear observation driver's cabin of operating personnel accessible transparent baffle can not cause the field of vision to shelter from operating personnel.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse explanation, these directional terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present application.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures, and it is to be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A protective device for a crown block is characterized by comprising a driving piece (1), a transmission assembly (2), a guide piece (3) and a plurality of protective plates (4); the protection plates (4) are arranged on the guide piece (3) and are arranged along the length direction of the guide piece (3), and the edges of every two adjacent protection plates (4) are hinged to each other, so that the protection plates (4) can be unfolded or folded along the length direction of the guide piece (3);
guide wheels (5) matched with the guide pieces (3) are arranged at the edge of the protection plate (4) at intervals, and the guide wheels (5) are rotatably arranged on the guide pieces (3);
the driving piece (1) is linked with the guide wheel (5) through the transmission assembly (2) and is used for driving the guide wheel (5) to rotate, so that the guide wheel (5) slides along the length direction of the guide piece (3) to drive the protection plates (4) to be unfolded or folded.
2. The protective device for the overhead travelling crane according to claim 1, wherein the transmission assembly (2) comprises a driving wheel (21) and a synchronizing member (22), the driving member (1) is linked with the driving wheel (21), and the synchronizing member (22) is linked with the driving wheel (21) and the guide wheel (5), respectively.
3. Guard means for a day vehicle according to claim 2, characterized in that the synchronizing member (22) is a conveyor belt.
4. The overhead guard of claim 3, wherein the conveyor belt is made of steel wire rope.
5. The protective device for overhead travelling cranes according to claim 2, wherein the synchronizing member (22) is a drive chain.
6. A crown block guard according to claim 2 or 3 or 4 or 5, characterized in that said transmission assembly (2) further comprises a driven wheel (23), said driving wheel (21) and said driven wheel (23) are respectively arranged at two ends of said guide member (3) in the length direction, and said driven wheel (23) is linked with said synchronizing member (22).
7. A guard device for a roof vehicle according to claim 1, characterised in that the guide member (3) comprises a pair of opposed parallel rails, which are U-shaped rails with their concave surfaces facing each other.
8. A protective device for a roof vehicle according to claim 1, characterized in that a guide wheel (5) at the end of the guide (3) is connected to the guide (3) for limiting the sliding of the guide wheel (5) relative to the guide (3).
9. The protective device for skyscrapers as claimed in claim 1, characterized in that at least one of the protective plates (4) is provided with a through-going viewing opening.
10. The overhead guard of claim 9, wherein a transparent barrier is provided at the viewing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165646.7A CN112249916A (en) | 2020-10-27 | 2020-10-27 | Protective device for crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165646.7A CN112249916A (en) | 2020-10-27 | 2020-10-27 | Protective device for crown block |
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| Publication Number | Publication Date |
|---|---|
| CN112249916A true CN112249916A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011165646.7A Pending CN112249916A (en) | 2020-10-27 | 2020-10-27 | Protective device for crown block |
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| CN (1) | CN112249916A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828969A (en) * | 2021-09-24 | 2021-12-24 | 郑州宝冶钢结构有限公司 | Guide rail device for six-axis robot |
| CN114627759A (en) * | 2022-02-24 | 2022-06-14 | 浙江大丰实业股份有限公司 | Protection device of outdoor screen |
| CN117879123A (en) * | 2024-03-13 | 2024-04-12 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
Citations (4)
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| CN113828969A (en) * | 2021-09-24 | 2021-12-24 | 郑州宝冶钢结构有限公司 | Guide rail device for six-axis robot |
| CN114627759A (en) * | 2022-02-24 | 2022-06-14 | 浙江大丰实业股份有限公司 | Protection device of outdoor screen |
| CN117879123A (en) * | 2024-03-13 | 2024-04-12 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
| CN117879123B (en) * | 2024-03-13 | 2024-05-24 | 华芯智上半导体设备(上海)有限公司 | Energy recovery device, crown block conveying system and control method |
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Application publication date: 20210122 |