CN220723364U - Safety protection device for overhead travelling crane - Google Patents
Safety protection device for overhead travelling crane Download PDFInfo
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- CN220723364U CN220723364U CN202322486521.XU CN202322486521U CN220723364U CN 220723364 U CN220723364 U CN 220723364U CN 202322486521 U CN202322486521 U CN 202322486521U CN 220723364 U CN220723364 U CN 220723364U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000001133 acceleration Effects 0.000 claims description 10
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model provides a safety protection device for a crown block, which comprises a trolley, a lifting device, a rope breakage protection device, a hook breakage protection device, an anti-collision device and a controller, wherein the trolley is connected with the lifting device, the anti-collision device and the rope breakage protection device, the lifting device is connected with the hook breakage protection device and the rope breakage protection device, the lifting device, the rope breakage protection device, the anti-collision device and the hook breakage protection device are electrically connected with the controller, and the controller is electrically connected with a cab control panel. The safety protection device for the crown block, provided by the utility model, can realize emergency protection after the steel rope is broken or the lifting hook is broken, and can promote the life and property safety in a workshop.
Description
Technical Field
The utility model relates to the technical field of crown blocks, in particular to a safety protection device for crown blocks.
Background
The crane is a bridge crane with a bridge frame running on overhead tracks, the bridge frame of the crane runs longitudinally along the tracks paved on the overhead tracks on two sides, and the crane trolley runs transversely along the tracks paved on the bridge frame to form a rectangular working area, so that the space below the bridge frame can be fully utilized to hoist materials, and the space is not hindered by ground equipment. In the working process of the crown block, steel rope breakage and lifting hook breakage are one of reasons for accidents, and huge casualties or property loss can be caused, so that the design of the safety protection device for the crown block is very necessary.
Disclosure of Invention
In order to solve the problems, the utility model provides the following scheme:
the safety protection device for the crown block comprises a trolley, and further comprises a lifting device, a rope breakage protection device, a hook breakage protection device, an anti-collision device and a controller, wherein the trolley is connected with the lifting device, the anti-collision device and the rope breakage protection device, the lifting device is connected with the hook breakage protection device and the rope breakage protection device, the lifting device, the rope breakage protection device, the anti-collision device and the hook breakage protection device are electrically connected with the controller, and the controller is electrically connected with a cab control panel;
the lifting device comprises a shell, a winch, a steel rope, a first pulley block, a second pulley block, a connecting piece and a lifting hook, wherein the trolley and the rope breakage protection device are respectively and fixedly connected with the shell, the winch is arranged in the shell, the steel rope is arranged on the winch, the first pulley block comprises a first pulley shaft, two ends of the first pulley shaft are fixedly connected with the rope breakage protection device, the first pulley shaft is provided with a first pulley, a second pulley and a third pulley, the second pulley block comprises a second pulley shaft and a protective shell, two ends of the second pulley shaft are fixedly connected with the protective shell, the second pulley shaft is provided with a fourth pulley, a fifth pulley, a sixth pulley and a seventh pulley, the steel rope sequentially bypasses the fourth pulley, the first pulley, the fifth pulley, the second pulley, the sixth pulley, the third pulley and the seventh pulley, the protective shell is respectively and fixedly connected with the rope breakage protection device and the connecting piece, the connecting piece is hinged with the lifting hook, and the lifting hook is electrically connected with the controller;
the broken rope protection device comprises a fixing assembly, a broken rope clamping assembly and an acceleration sensor, wherein the shell is fixedly connected with the fixing assembly, the fixing assembly is fixedly connected with the broken rope clamping assembly corresponding to the steel rope, the acceleration sensor is arranged on the steel rope, and the acceleration sensor and the broken rope clamping assembly are electrically connected with the controller;
the broken hook protection device comprises a bottom plate, a protection rope, a tension sensor and a cargo clamping assembly, wherein the second pulley block is fixedly connected with the protection rope, the tension sensor is arranged on the protection rope, the protection rope is respectively and fixedly connected with four corners of the bottom plate, the cargo clamping assembly is fixedly arranged on the bottom plate, and the tension sensor is electrically connected with the controller.
Optionally, the buffer stop includes infrared range finder and reflection of light strip, the travelling direction both sides of trolley are respectively fixed one infrared range finder, reflection of light strip corresponds infrared range finder sets up on the workshop wall, infrared range finder electric connection the controller.
Optionally, the fixed subassembly has two sets of, two sets of fixed subassembly is bilateral symmetry about first assembly pulley center, including dead lever, reinforcing plate, first connecting plate and second connecting plate, the dead lever has two, fixes respectively two angles around the casing bottom, around respectively fixed one between the dead lever the reinforcing plate, respectively fixed connection is in the inboard both ends of reinforcing plate one first connecting plate, the inboard center fixed connection of reinforcing plate the second connecting plate, correspond between first connecting plate and the second connecting plate the steel cable respectively set up one broken string clamping assembly.
Optionally, the broken rope clamping assembly has four groups, and every group includes connecting block, first clamp block, second clamp block and first electric jar, the inboard fixed connection of first connecting plate first electric jar body, first electric jar telescopic link end fixed connection the connecting block, connecting block fixed connection first clamp block, both sides are all fixed connection about the second connecting plate a second clamp block, between hoist engine and the fourth pulley, between the fourth pulley and the first pulley, between the third pulley with between the seventh pulley with between the hoist engine respectively pass a set of first clamp block and the second clamp block, first clamp block with the second clamp block inboard corresponds the wire rope size sets up the recess, the recess inboard has a plurality of trapezoidal teeth, and two recesses are relative and normal state recess and wire rope do not contact, first electric jar electric connection the controller.
Optionally, the goods clamping component includes second electric jar and fixed plate, the both sides at each angle of bottom plate are fixed the second electric jar, the telescopic link fixed connection of second electric jar the fixed plate, the fixed plate is connected the goods side, second electric jar electric connection the controller.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects: according to the safety protection device for the crown block, provided by the utility model, the broken rope clamping assembly can rapidly clamp other sections of steel ropes after the steel ropes are broken, so that the steel ropes are prevented from continuously slipping off and the falling of goods is prevented; the broken hook clamping assembly can change the load bearing of the protective rope after the lifting hook is broken suddenly, so that the goods are prevented from falling.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a safety device for a crown block according to an embodiment of the present utility model;
FIG. 2 is a top view of the rope breakage protection device;
fig. 3 is a top view of the trip protection apparatus.
Reference numerals: 1. a lifting device; 2. a rope breakage protection device; 3. a broken hook protection device; 4. goods; 101. a housing; 102. a hoist; 103. a steel rope; 104. a first pulley block; 105. the second pulley block; 106. a first pulley shaft; 107. a connecting piece; 108. a lifting hook; 1041. a first pulley; 1042. a second pulley; 1043. a third pulley; 1051. a fourth pulley; 1052. a fifth pulley; 1053. a sixth pulley; 1054. a seventh pulley; 201. a fixing assembly; 202. a broken rope clamping assembly; 2011. a fixed rod; 2012. a reinforcing plate; 2013. a first connection plate; 2014. a second connecting plate; 2021. a connecting block; 2022. a first clamping block; 2023. a second clamping block; 2024. a first electric cylinder; 301. a bottom plate; 302. a protective rope; 303. a cargo clamping assembly; 3031. a second electric cylinder; 3032. and a fixing plate.
Detailed Description
The utility model aims to provide a safety protection device for a crown block, which can realize emergency protection after a steel rope is broken or a lifting hook is broken and improve the life and property safety in a workshop.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the safety protection device for the overhead traveling crane comprises a trolley, and further comprises a lifting device 1, a rope breakage protection device 2, a hook breakage protection device 3, an anti-collision device and a controller, wherein the trolley is connected with the lifting device 1, the anti-collision device and the rope breakage protection device 2, the lifting device 1 is connected with the hook breakage protection device 3 and the rope breakage protection device 2, the lifting device 1, the rope breakage protection device 2, the anti-collision device and the hook breakage protection device 3 are electrically connected with the controller, and the controller is electrically connected with a cab control panel;
the lifting device 1 comprises a shell 101, a winding machine 102, a steel rope 103, a first pulley block 104, a second pulley block 105, a connecting piece 107 and a lifting hook 108, wherein the trolley and the rope breakage protecting device 2 are respectively and fixedly connected with the shell 101, the winding machine 102 is arranged in the shell 101, the steel rope 103 is arranged on the winding machine 102, the first pulley block 104 comprises a first pulley shaft 106, two ends of the first pulley shaft 106 are fixedly connected with the rope breakage protecting device 2, a first pulley 1041, a second pulley 1042 and a third pulley 1043 are arranged on the first pulley shaft 106, the second pulley block 105 comprises a second pulley shaft and a protecting shell, two ends of the second pulley shaft are fixedly connected with the protecting shell, the second pulley shaft is provided with a fourth pulley 1051, a fifth pulley 1052, a sixth pulley 1053 and a seventh pulley 1054, the steel rope 103 sequentially bypasses the fourth pulley 1051, the first pulley 1041, the fifth pulley 1052, the second pulley 1042, the sixth pulley 1043 and the seventh pulley 1053 and the lifting hook 408, and the protecting piece 107 are respectively and fixedly connected with the lifting hook 408;
the anti-collision device comprises an infrared distance meter and light reflecting strips, wherein the infrared distance meter is fixed on two sides of the moving direction of the trolley, the light reflecting strips are arranged on a workshop wall corresponding to the infrared distance meter, and the infrared distance meter is electrically connected with the controller.
As shown in fig. 2, the rope breakage protection device 2 includes a fixing component 201, a rope breakage clamping component 202 and an acceleration sensor, the casing 101 is fixedly connected to the fixing component 201, the fixing component 201 is fixedly connected to the rope breakage clamping component 202 corresponding to the steel rope 103, the acceleration sensor is disposed on the steel rope 103, and the acceleration sensor and the rope breakage clamping component 202 are electrically connected to the controller;
the fixing assemblies 201 are two groups, the two groups of fixing assemblies 201 are bilaterally symmetrical about the center of the first pulley block 104, each fixing assembly comprises two fixing rods 2011, a reinforcing plate 2012, a first connecting plate 2013 and a second connecting plate 2014, the two fixing rods 2011 are respectively fixed at front and rear corners of the bottom of the shell 101, one reinforcing plate 2012 is respectively fixed between the fixing rods 2011, two ends of the inner side of each reinforcing plate 2012 are respectively fixedly connected with one first connecting plate 2013, the center of the inner side of each reinforcing plate 2012 is fixedly connected with the second connecting plate 2014, and one broken rope clamping assembly 202 is respectively arranged between the first connecting plate 2013 and the second connecting plate 2014 corresponding to the steel ropes 103.
The rope breaking clamping assembly 202 comprises four groups, each group comprises a connecting block 2021, a first clamping block 2022, a second clamping block 2023 and a first electric cylinder 2024, the inner sides of the first connecting plates 2013 are fixedly connected with the first electric cylinder 2024 body, the tail ends of telescopic rods of the first electric cylinders 2024 are fixedly connected with the connecting blocks 2021, the connecting blocks 2021 are fixedly connected with the first clamping blocks 2022, the front side and the rear side of the second connecting plates 2014 are fixedly connected with the second clamping blocks 2023, the winch 102 is arranged between the fourth pulley 1051 and the first pulley 1041, the third pulley 1043 is arranged between the seventh pulley 1054, the steel ropes 103 between the seventh pulley 1054 and the winch 102 respectively penetrate through a group of first clamping blocks 2022 and second clamping blocks 2023, the inner sides of the first clamping blocks 2022 and the second clamping blocks 2023 are respectively connected with the inner sides of the steel ropes 202103, a plurality of grooves are formed in the size corresponding to the grooves of the inner sides of the steel ropes 2023, and the grooves are not in electrical contact with the first pulleys 1041, and the electric cylinders are in a normal state.
As shown in fig. 3, the hook breaking protection device 3 includes a bottom plate 301, a protection rope 302, a tension sensor and a cargo clamping assembly 303, the second pulley block 105 is fixedly connected with the protection rope 302, the tension sensor is disposed on the protection rope 302, the protection rope 302 is respectively and fixedly connected with four corners of the bottom plate 301, the cargo clamping assembly 303 is fixedly disposed on the bottom plate 301, the tension sensor is electrically connected with the controller, and the height of the protection rope 302 is about 1.5 times that of the maximum cargo 4.
The cargo clamping assembly 303 comprises a second electric cylinder 3031 and a fixed plate 3032, wherein the second electric cylinder 3031 is fixed at two sides of each corner of the bottom plate 301, a telescopic rod of the second electric cylinder 3031 is fixedly connected with the fixed plate 3032, the fixed plate 3032 is connected with the side surface of the cargo 4, and the second electric cylinder 3031 is electrically connected with the controller.
In the working process, after the lifting hook 108 hangs the goods 4, a driver in the cab manipulates the control panel to send signals to the controller, and the controller controls the extension rod of the second electric cylinder 3031 to extend, so that the fixed plate 3032 clamps the goods 4, and then the hoist 102 rolls up the steel rope 103 to drive the second pulley block 105 to rise so as to enable the goods 4 to rise; when the infrared range finder monitors the reflection signals of the reflection strips, signals are sent to the controller, the controller sends signals to the control panel, and the control panel controls the trolley to stop running; when the steel rope 103 is broken, an acceleration sensor on the steel rope 103 sends a signal to a controller, and the controller controls the first electric cylinder 2024 telescopic rod to extend and sends an alarm signal to a control panel to wait for the rescue of staff; when the hook 108 breaks, the cargo 4 and the bottom plate 301 fall down together until being pulled by the protective rope 302, the tension sensor on the protective rope 302 sends a signal to the controller, and the controller controls the hoist 102 to stop running and sends an alarm signal to the control panel.
According to the safety protection device for the crown block, provided by the utility model, the broken rope clamping assembly can rapidly clamp other sections of steel ropes after the steel ropes are broken, so that the steel ropes are prevented from continuously slipping off and the falling of goods is prevented; the broken hook clamping assembly can change the load bearing of the protective rope after the lifting hook is broken suddenly, so that the goods are prevented from falling.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present utility model and the core ideas thereof; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (5)
1. The safety protection device for the crown block comprises a lifting trolley and is characterized by further comprising a lifting device, a rope breakage protection device, a hook breakage protection device, an anti-collision device and a controller, wherein the lifting trolley is connected with the lifting device, the anti-collision device and the rope breakage protection device, the lifting device is connected with the hook breakage protection device and the rope breakage protection device, the lifting device, the rope breakage protection device, the anti-collision device and the hook breakage protection device are electrically connected with the controller, and the controller is electrically connected with a control panel of a cab;
the lifting device comprises a shell, a winch, a steel rope, a first pulley block, a second pulley block, a connecting piece and a lifting hook, wherein the trolley and the rope breakage protection device are respectively and fixedly connected with the shell, the winch is arranged in the shell, the steel rope is arranged on the winch, the first pulley block comprises a first pulley shaft, two ends of the first pulley shaft are fixedly connected with the rope breakage protection device, the first pulley shaft is provided with a first pulley, a second pulley and a third pulley, the second pulley block comprises a second pulley shaft and a protective shell, two ends of the second pulley shaft are fixedly connected with the protective shell, the second pulley shaft is provided with a fourth pulley, a fifth pulley, a sixth pulley and a seventh pulley, the steel rope sequentially bypasses the fourth pulley, the first pulley, the fifth pulley, the second pulley, the sixth pulley, the third pulley and the seventh pulley, the protective shell is respectively and fixedly connected with the rope breakage protection device and the connecting piece, the connecting piece is hinged with the lifting hook, and the lifting hook is electrically connected with the controller;
the broken rope protection device comprises a fixing assembly, a broken rope clamping assembly and an acceleration sensor, wherein the shell is fixedly connected with the fixing assembly, the fixing assembly is fixedly connected with the broken rope clamping assembly corresponding to the steel rope, the acceleration sensor is arranged on the steel rope, and the acceleration sensor and the broken rope clamping assembly are electrically connected with the controller;
the broken hook protection device comprises a bottom plate, a protection rope, a tension sensor and a cargo clamping assembly, wherein the second pulley block is fixedly connected with the protection rope, the tension sensor is arranged on the protection rope, the protection rope is respectively and fixedly connected with four corners of the bottom plate, the cargo clamping assembly is fixedly arranged on the bottom plate, and the tension sensor is electrically connected with the controller.
2. The safety device for the overhead traveling crane according to claim 1, wherein the anti-collision device comprises an infrared distance meter and a reflective strip, wherein the infrared distance meter is fixed on two sides of the traveling direction of the trolley, the reflective strip is arranged on a wall of a workshop corresponding to the infrared distance meter, and the infrared distance meter is electrically connected with the controller.
3. The safety protection device for the crown block according to claim 1, wherein the two fixing components are in bilateral symmetry about the center of the first pulley block, the safety protection device comprises two fixing rods, two reinforcing plates, a first connecting plate and a second connecting plate, the two fixing rods are respectively fixed at front and rear corners of the bottom of the shell, one reinforcing plate is respectively fixed between the front fixing rod and the rear fixing rod, two ends of the inner side of the reinforcing plate are respectively fixedly connected with one first connecting plate, the center of the inner side of the reinforcing plate is fixedly connected with the second connecting plate, and one broken rope clamping component is respectively arranged between the first connecting plate and the second connecting plate corresponding to the steel ropes.
4. The safety device for the crown block according to claim 3, wherein the rope breaking clamping assembly comprises four groups, each group comprises a connecting block, a first clamping block, a second clamping block and a first electric cylinder, the inner side of the first connecting plate is fixedly connected with the first electric cylinder body, the tail end of the first electric cylinder telescopic rod is fixedly connected with the connecting block, the connecting block is fixedly connected with the first clamping block, the front side and the rear side of the second connecting plate are fixedly connected with the second clamping block, steel ropes between the winch and the fourth pulley, between the fourth pulley and the first pulley, between the third pulley and the seventh pulley and between the seventh pulley and the winch respectively pass through a group of first clamping blocks and second clamping blocks, grooves are formed in the inner sides of the first clamping blocks and the second clamping blocks corresponding to the steel rope, a plurality of trapezoid teeth are formed in the inner sides of the grooves, the two grooves are opposite, the trapezoid teeth are not contacted with the steel rope in a normal state, and the first electric cylinder is electrically connected with the controller.
5. The overhead traveling crane safety device according to claim 1, wherein the cargo clamping assembly comprises a second electric cylinder and a fixing plate, the second electric cylinder is fixed on two sides of each corner of the bottom plate, the telescopic rod of the second electric cylinder is fixedly connected with the fixing plate, the fixing plate is connected with the side of the cargo, and the second electric cylinder is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322486521.XU CN220723364U (en) | 2023-09-13 | 2023-09-13 | Safety protection device for overhead travelling crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322486521.XU CN220723364U (en) | 2023-09-13 | 2023-09-13 | Safety protection device for overhead travelling crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220723364U true CN220723364U (en) | 2024-04-05 |
Family
ID=90497126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322486521.XU Active CN220723364U (en) | 2023-09-13 | 2023-09-13 | Safety protection device for overhead travelling crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220723364U (en) |
-
2023
- 2023-09-13 CN CN202322486521.XU patent/CN220723364U/en active Active
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