Anti-collision device for cab of bridge crane
By setting up a heavy hammer and wire rope device on the top of the bridge crane driver's room, the collision rod design makes the spreader power outage when it is about to hit the driver's room, solving the problem of damage to the driver's room caused by operating errors and achieving safe operation and efficient production.
Patent Information
- Application Number
- CN202421378873.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-17
AI Technical Summary
During the lifting process of the bridge crane, due to improper operation of the driver's room staff or the travel limit switch failing, the lifting height judgment is incorrect. The spreader may crash into the driver's room from the front or bottom, causing damage to the driver's room, which will affect the Work efficiency.
Design a bridge crane driver's room anti-collision device, including setting a heavy hammer on the top side of the driver's room, connecting the heavy hammer control line to the main contactor coil, setting a wire rope on the side of the heavy hammer, and setting a cross rod along the length of the driver's room at the bottom , one end of the collision rod is connected to the crossbar. When the spreader is about to hit the driver's room, the impact rod is subjected to a horizontal or impact force from the bottom, and moves upward to drive the crossbar and wire rope, causing the heavy hammer to rise, trigger the main contactor to close, and power is cut off to stop the spreader from moving.
It effectively avoids collision between the spreader and the driver's room, prevents damage to the driver's room and injuries to the operator, avoids production stagnation caused by the driver's room collision, ensures the normal and safe operation of the crane, and improves work efficiency.
Smart Images
Figure CN222498437U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge cranes, in particular to an anti-collision device for a driver's cab of a bridge crane. Background Art
[0002] At present, bridge cranes are widely used both at home and abroad. The hoisting equipment and structural forms of bridge cranes vary greatly depending on their uses. They are used in lifting work in the factory through the cooperation of trolley running system, car running system and lifting system.
[0003] However, during operation, the crane lifts a large load and plays a role in connecting production processes and coordinating lifting in safe production. When using a double-hook lifting beam to operate under the driver's cab, improper operation by the staff in the driver's cab or failure of the travel limit switch may lead to misjudgment of the lifting height. The hoisting device may hit the driver's cab from the front or bottom, causing damage to the driver's cab. If the driver's cab is damaged, the entire crane cannot be used and the repair cycle is long, causing work stagnation and seriously affecting work efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-collision device for a cab of a bridge crane to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An anti-collision device for a cab of a bridge crane, comprising:
[0007] A driver's cab, wherein a weight is provided on one side of the top of the driver's cab;
[0008] A control line is provided at the bottom of the weight and connected to the main contactor coil in the driver's cab;
[0009] A steel wire rope is provided on one side of the weight, and the steel wire rope extends to below the bottom of the driver's cab;
[0010] A limiting structure is provided at one end of the steel wire rope close to the weight;
[0011] A cross bar is arranged at the bottom of the steel wire rope along the length of the driver's cab, a connecting column is movably arranged at one end of the cross bar, and the top of the connecting column is connected to the bottom of the driver's cab;
[0012] A collision rod, one end of which is connected to the other end of the cross bar, and the other end of the collision rod is higher than the cross bar.
[0013] The anti-collision device for the cab of a bridge crane according to this solution has at least the following technical effects:
[0014] The anti-collision device for the cab of the bridge crane is provided with a weight on one side of the top of the cab, a weight control line is connected to the main contactor coil, a steel wire rope is provided on one side of the weight, a cross bar is provided at the bottom of the wire rope along the length of the cab, and one end of the collision rod is connected to the cross bar. When the driver operates the trolley in front of the cab to travel to the cab or rises at the bottom of the cab due to improper height judgment or failure of the limit switch, the hoist will first contact the collision rod, and because one end of the collision rod is higher than the cross bar, when the collision rod is hit horizontally or from the bottom, the collision rod will move upward, and at the same time, it will drive one end of the cross bar to move upward, and drive the steel wire rope to pull downward, so that the weight is tilted, the weight control line triggers the main contactor to close, the whole vehicle is powered off, and the hoist is forced to stop moving, thereby avoiding the collision between the hoist and the cab; by manually dropping the hoist and resetting the weight, normal power can be restored; the device can effectively avoid the risk of damage to the cab or injury to the operator, and avoids the production stagnation caused by the need for maintenance after the cab is damaged, thereby ensuring the normal and safe operation of the crane and improving work efficiency.
[0015] As a further solution of the utility model: the collision rod is an arc-shaped structure.
[0016] Since the collision rod is an arc-shaped structure, the arc-shaped structure can make the collision rod absorb the impact force more evenly during collision and is more conducive to converting the horizontal force into a vertical upward force. This further ensures that when the driver makes an improper height judgment or the limit switch fails, the hoist is uncontrollable and is about to hit the driver's cab, the heavy hammer will act, thereby triggering the main contactor to act, and the whole vehicle will be powered off, reducing the risk of the hoist hitting the driver's cab.
[0017] As a further solution of the utility model: the angle between the collision rod and the cross bar at the connection is 35°-45°.
[0018] Since the angle between the collision rod and the cross bar is 35°-45°, the force transmission can be further optimized, so that the collision rod can better disperse and transmit the force to the cross bar and the wire rope when the collision rod is subjected to force. At the same time, the connection between the collision rod and the cross bar is more firm and stable, reducing displacement and falling off after collision, and extending the service life of the collision rod.
[0019] As a further solution of the utility model: the length of the collision rod beyond the front side of the driver's cab is 280mm-320mm.
[0020] Since the collision rod exceeds the front side of the cab by 280mm-320mm, a certain safety distance is maintained between the collision rod and the front side of the cab to prevent the raised end of the collision rod from damaging the front side of the cab when the collision rod collides with the hoist and moves upward, thereby avoiding unnecessary safety risks. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an anti-collision device for a cab of a bridge crane;
[0023] Figure 2 The present invention is a schematic diagram of the side view structure of an anti-collision device for a cab of a bridge crane.
[0024] Reference numerals:
[0025] 101. Driver's cab; 102. Heavy hammer; 103. Wire rope; 104. Limiting structure; 105. Cross bar; 106. Connecting column; 107. Collision rod. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0032] like Figure 1 and Figure 2 The embodiment of the utility model shown is an anti-collision device for the cab of a bridge crane, comprising: a cab 101, a weight 102 is arranged on one side of the top of the cab 101; the control line of the weight 102 is connected to the main contactor coil in the cab 101; a wire rope 103 is arranged on one side of the weight 102, and the wire rope 103 extends to the bottom of the cab 101; a limiting structure 104 is arranged at one end of the wire rope 103 close to the weight 102; a cross bar 105 is arranged at the bottom of the wire rope 103 along the length of the cab 101, and a connecting column 106 is movably arranged at one end of the cross bar 105, and the top of the connecting column 106 is connected to the bottom of the cab 101; a collision rod 107, the collision rod 107 takes a straight structure as an example, one end of the collision rod 107 is connected to the cross bar 105, and the other end of the collision rod 107 is higher than the cross bar 105.
[0033] Specifically, the anti-collision device for the cab of the bridge crane is provided with a weight 102 on one side of the top of the cab 101, the control line of the weight 102 is connected to the main contactor coil, a wire rope 103 is provided on one side of the weight 102, a cross bar 105 is provided at the bottom of the wire rope 103 along the length of the cab, and one end of a collision rod 107 is connected to the cross bar 105. When the driver operates the trolley in front of the cab 101 to drive towards the cab 101 or to rise at the bottom of the cab 101 due to improper height judgment or failure of the limit switch, the hoisting device will first contact the collision rod 107, and because one end of the collision rod 107 is higher than the cross bar 105, the collision rod 107 is affected by water. When the force of impact is applied horizontally or from the bottom, the collision rod 107 will move upward, and at the same time, it will drive one end of the cross bar 105 to move upward, and drive the wire rope 103 to pull downward, so that the weight 102 will be tilted, and the control line of the weight 102 will trigger the main contactor to close, and the whole vehicle will be powered off, forcing the spreader to stop moving, thereby avoiding the spreader from colliding with the driver's cab 101; by manually lowering the spreader and resetting the weight 102, normal power can be restored; this device can effectively avoid the risk of damage to the driver's cab or injury to the operator, and avoids the need for maintenance of the driver's cab 101 after collision, which leads to production stagnation, thereby ensuring the normal and safe operation of the crane and improving work efficiency.
[0034] According to an embodiment of the present invention, the collision rod 107 is an arc-shaped structure.
[0035] Specifically, since the collision rod 107 is an arc-shaped structure, the arc-shaped structure can enable the collision rod 107 to absorb the impact force more evenly during a collision, and is more conducive to converting the horizontal force into a vertical upward force, further ensuring that when the driver makes an improper height judgment or the limit switch fails, the hoist is uncontrollable and is about to hit the driver's cab 101, the heavy hammer 102 can be triggered in time to close the main contactor, and the power of the entire vehicle is cut off, reducing the risk of the hoist hitting the driver's cab 101.
[0036] like Figure 1 and Figure 2 As shown, the angle between the collision rod 107 and the cross bar 105 is 35°-45°.
[0037] Specifically, since the angle between the collision rod 107 and the cross bar 105 is 35°-45°, the force transmission can be further optimized, so that when the collision rod 107 is subjected to force, the force can be better dispersed and transmitted to the cross bar 105 and the wire rope 103. At the same time, the connection between the collision rod 107 and the cross bar 105 is made firmer and more stable, reducing displacement and falling off after collision, and extending the service life of the collision rod 107.
[0038] like Figure 1 and Figure 2 As shown, the length of the collision rod 107 beyond the front side of the cab 101 is 280 mm-320 mm.
[0039] Specifically, since the length of the collision rod exceeds the front side of the driver's cab by 280mm-320mm, the collision rod 107 maintains a certain safety distance from the front side of the driver's cab 101, preventing the raised end of the collision rod 107 from damaging the front side of the driver's cab 101 when the collision rod 107 collides with the hoist and moves upward, thereby avoiding unnecessary safety risks.
[0040] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.
Claims
1. An anti-collision device for a cab of a bridge crane, characterized in that: include: A driver's cab (101), wherein a weight (102) is provided on one side of the top of the driver's cab (101); A control line is provided at the bottom of the weight (102) and is connected to a main contactor coil in the driver's cab (101); A steel wire rope (103) is provided on one side of the weight (102), and the steel wire rope (103) extends to below the bottom of the driver's cab (101); A limiting structure (104) is provided at one end of the steel wire rope (103) close to the weight (102); A cross bar (105) is provided at the bottom of the steel wire rope (103) along the length of the driver's cab (101), a connecting column (106) is movably provided at one end of the cross bar (105), and the top of the connecting column (106) is connected to the bottom of the driver's cab (101); A collision rod (107), one end of which is connected to the other end of the cross bar (105), and the other end of which is higher than the cross bar (105).
2. The anti-collision device for the cab of a bridge crane according to claim 1 is characterized in that: The collision rod (107) is an arc-shaped structure.
3. The anti-collision device for the cab of a bridge crane according to any one of claims 1 or 2, characterized in that: The angle between the collision rod (107) and the cross bar (105) at the connection point is 35°-45°.
4. The anti-collision device for the cab of a bridge crane according to claim 3 is characterized in that: The length of the collision rod (107) beyond the front side of the driver's cab (101) is 280 mm to 320 mm.