Double-layer automatic rope returning and guiding device

Abstract

The utility model discloses a double-layer automatic rope returning and guiding device, and relates to the technical field of rope guiding devices. The rope guiding device comprises a rope guiding ring and an arc-shaped pressing plate mechanism, the rope guiding ring is not connected end to end, the arc-shaped pressing plate mechanism is connected to the head section of the rope guiding ring and comprises a first arc-shaped plate, a long slotted hole is formed in the first arc-shaped plate, rotating grooves are formed in the opposite positions of the two sides of the long slotted hole, limiting plates are rotationally connected in the rotating grooves, and the first arc-shaped plate and the second arc-shaped plate are connected through the limiting plates. According to the utility model, through the arrangement of the arc-shaped pressing plate mechanism, when the electric hoist is obliquely hoisted, the steel wire rope can generate lateral extrusion force on the limiting plate, and the force can firstly act on the limiting plate, so that the limiting plate overcomes the elastic force of the spring to rotate; and the cross rod is pressed through the supporting rod, so that the cross rod is pushed to move to trigger the fire cutoff limiter during continuous movement, and a power supply of the electric hoist can be quickly cut off under the condition of inclined hoisting, so that the electric hoist stops moving.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rope guide, specifically to a double -deck automatic back rope rope guide. BACKGROUND

[0002] The electric hoist usually adopts the fire breaking stopper, when the rope guide on the electric hoist moves to the upper and lower limit area, the rope guide will rise the block or drop the block and touch the fire breaking stopper to make it work, so that the electric hoist stops moving, and the electric hoist will not overwind or unwind the wire.

[0003] The existing rope guide produces a lateral extrusion force between the steel wire rope and the rope guide when the rope guide is inclined, under the action of the force, the rope guide is displaced, and the front panel of the limit stop is also displaced correspondingly, so that the upper limit position appears early or delayed action, and if the inclination angle of the steel wire rope is too large and the load is heavy, the rope guide may be damaged, and the upper limit position will also be invalid. SUMMARY

[0004] Therefore, the utility model discloses the purpose is to provide a double -deck automatic back rope rope guide to solve the technical problem that if the inclination angle of the steel wire rope is too large and the load is heavy, the rope guide may be damaged, and the upper limit position will also be invalid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double -deck automatic back rope rope guide, including the rope guide ring that head and tail are not connected and the arc -shaped pressing plate mechanism that is connected on the first section of rope guide ring, the arc -shaped pressing plate mechanism includes first arc -shaped board, long slot is seted up on the first arc -shaped board, the opposite position of both sides of long slot is seted up with the rotary groove, the rotary groove is rotatably connected with the limit stop in the inside, and the one side of limit stop is provided with spring between the one end and rotary groove;

[0006] The front surface of the limit stop is fixedly connected with a force transmission support rod, and the end of the support rod is fixedly connected with a pressing block.

[0007] Through the above technical scheme, the double -deck automatic back rope rope guide can realize the effective guidance and limit of the steel wire rope, the rope guide ring can ensure that the rope guide runs smoothly in the path of the winding roller, and the arc -shaped pressing plate mechanism can effectively press and adjust when the steel wire rope appears inclined or other abnormal conditions, so that the steel wire rope does not deviate from the predetermined track.

[0008] Further, the inner side of the first arc -shaped board is provided with a second arc -shaped board, and a rope guide groove is formed in the second arc -shaped board.

[0009] By adopting the technical scheme, the second arc-shaped plate arranged on the inner side of the first arc-shaped plate can further enhance the guiding and limiting effect on the steel wire rope, so that the steel wire rope is more stable during operation, and the shaking and deviation caused by external factors are reduced, thereby improving the safety and stability of the equipment.

[0010] Further, the two ends of the second arc-shaped plate are fixedly connected with the first arc-shaped plate through connecting rods.

[0011] By adopting the technical scheme, the two ends of the second arc-shaped plate are fixedly connected with the first arc-shaped plate through connecting rods. This connection mode not only enhances the structural strength of the entire arc-shaped pressing plate mechanism, but also ensures the relative position stability between the first arc-shaped plate and the second arc-shaped plate, so that the guide rope groove and the long slot hole can always be in the relative arrangement state.

[0012] Further, the opposite inner walls of the two limiting plates are smooth planes, and one end of the long slot hole is provided with a chamfer facilitating automatic rope returning.

[0013] By adopting the technical scheme, the opposite inner walls of the two limiting plates are smooth planes, which reduces the frictional resistance between the steel wire rope and the limiting plates. During the operation of the electric hoist, the steel wire rope needs to frequently shuttle between the limiting plates. The smooth inner walls can ensure smooth movement of the steel wire rope and avoid wear and heat accumulation caused by friction, thereby prolonging the service life of the steel wire rope and the rope guide.

[0014] Further, a horizontal rod is arranged above the arc-shaped pressing plate mechanism, and the two ends of the horizontal rod are fixedly connected with an upward stop block and a downward stop block, respectively.

[0015] By adopting the technical scheme, the horizontal rod is arranged above the arc-shaped pressing plate mechanism, which provides a basis for subsequent limiting and protection functions. During the operation of the electric hoist, the horizontal rod can ensure the stability and reliability of the arc-shaped pressing plate mechanism and its internal components, and avoid deformation or damage caused by excessive movement.

[0016] Further, a fire breaking limiter is arranged at one end of the horizontal rod, and the fire breaking limiter is used to control the electric hoist to stop.

[0017] By adopting the technical scheme, the fire breaking limiter is arranged at one end of the horizontal rod, which provides a key safety protection mechanism for the equipment. During the operation of the electric hoist, once the set limit position is reached or an abnormal situation occurs, such as inclined hoisting, the limiting plate will drive the horizontal rod to move, thereby triggering the fire breaking limiter, so that the electric hoist stops moving quickly, thereby effectively avoiding equipment damage and safety accidents caused by over-winding, over-discharging or inclined pulling.

[0018] Further, the opposite inner walls of the two limiting plates are embedded with a plurality of balls for reducing friction.

[0019] By adopting the above technical scheme, the opposite inner walls of the two limiting plates are embedded with a plurality of balls for reducing friction, so that the friction coefficient between the steel wire rope and the limiting plate is greatly reduced.

[0020] To sum up, the utility model mainly has the following beneficial effects:

[0021] 1. The utility model discloses a arc-shaped pressing plate mechanism is arranged, so that the rope guide can stably guide the movement of the steel wire rope, when moving to the limit position, the first arc-shaped plate will press the rising stopper or the falling stopper, and the fire breaking limiter is triggered, which ensures that the electric hoist can stop moving immediately when reaching the limit position, prevents the equipment damage and safety accidents caused by overwinding or overdischarge, when the electric hoist is inclined, the steel wire rope will generate a lateral extrusion force on the limiting plate, the force will first act on the limiting plate, so that the limiting plate rotates against the elastic force of the spring, and the horizontal rod is pressed tightly through the supporting rod, and then the horizontal rod is pushed to move and triggers the fire breaking limiter in the continuous movement, so that the power supply of the electric hoist can be cut off quickly in the inclined state, the electric hoist stops moving, thereby effectively preventing the equipment damage or safety accidents caused by the inclined tension, and the safety and reliability of the equipment are greatly improved.

[0022] 2. The utility model discloses a ball is arranged, when the steel wire rope slides between the long slot hole and the limiting plate, the rolling characteristics of the ball effectively reduce the friction resistance, reduce the abrasion degree of the steel wire rope, avoid the problems such as the decrease of the diameter of the steel wire rope and the decrease of the strength caused by long-term friction, thereby the service life of the steel wire rope is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 It is the rear view three-dimensional structure schematic diagram of the utility model;

[0025] Figure 3 It is the side view partial structure schematic diagram of the utility model;

[0026] Figure 4 It is the main view structure schematic diagram of the utility model.

[0027] In the diagram: 1. Guide rope loop; 2. Arc-shaped pressure plate mechanism; 201. First arc-shaped plate; 202. Long slot; 203. Rotating groove; 204. Limiting plate; 205. Spring; 206. Support rod; 207. Pressure block; 208. Second arc-shaped plate; 209. Guide rope groove; 210. Connecting rod; 211. Chamfer; 3. Crossbar; 4. Rising stop block; 5. Falling stop block; 6. Fire cut-off limit switch; 7. Ball bearing. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure. Example 1:

[0030] A double-layer automatic rope return guide, such as Figures 1-4 As shown, it includes a guide rope loop 1 that is not connected at the beginning and end and an arc-shaped pressure plate mechanism 2 connected to the first section of the guide rope loop 1. The arc-shaped pressure plate mechanism 2 includes a first arc plate 201. The first arc plate 201 has an elongated slot 202. Rotating slots 203 are provided at opposite positions on both sides of the elongated slot 202. A limiting plate 204 is rotatably connected inside the rotating slot 203. A spring 205 is provided between one end of the limiting plate 204 and the rotating slot 203.

[0031] A support rod 206 for force transmission is fixedly connected to the front surface of the limiting plate 204. A pressure block 207 is fixedly connected to one end of the support rod 206. The elongated slot 202 and the rotating slot 203 provided on the first arc plate 201, together with the limiting plate 204 and the spring 205 that cooperate with them, constitute a flexible limiting mechanism to realize timely protection of the equipment.

[0032] See Figure 1 , Figure 2 and Figure 3 A second arc plate 208 is provided on the inner side of the first arc plate 201. A rope guide groove 209 is provided on the second arc plate 208. The rope guide groove 209 on the second arc plate 208 is arranged opposite to the long slot hole 202, which not only optimizes the direction of the wire rope, but also ensures that the wire rope can remain smooth and stable when passing through the rope guide.

[0033] See Figure 1 , Figure 2 and Figure 3Two ends of the second arc-shaped plate 208 are fixedly connected through the connecting rod 210 and the first arc-shaped plate 201, the guide rope groove 209 and the long slot hole 202 are oppositely arranged, the opposite arrangement of the guide rope groove 209 and the long slot hole 202 further optimizes the running direction and stress state of the steel wire rope, the existence of the guide rope groove 209 enables the steel wire rope to smoothly slide along the set path when passing through the guide rope device, and the long slot hole 202 provides sufficient space for the steel wire rope, so that the steel wire rope can have certain adjustment allowance when subjected to lateral force, and will not be abraded due to space limitation.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , the inner walls of the two limiting plates 204 opposite to each other are smooth planes, one end of the long slot hole 202 is provided with a chamfer 211 for facilitating automatic rope returning, one end of the long slot hole 202 is provided with a chamfer 211 for facilitating automatic rope returning, and the existence of the chamfer 211 enables the steel wire rope to more easily enter the long slot hole 202 when it needs to be returned, reducing the jamming and resistance caused by too large angle.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , the upper part of the arc-shaped pressing plate mechanism 2 is provided with a cross bar 3, the two ends of the cross bar 3 are fixedly connected with an upward stop block 4 and a downward stop block 5 respectively, the two ends of the cross bar 3 are fixedly connected with the upward stop block 4 and the downward stop block 5 respectively, realizing accurate limiting of the upward and downward directions of the electric hoist, during the operation of the electric hoist, once the set limit position is reached, the first arc-shaped plate 201 will move and touch the corresponding stop block, thereby triggering the fire breaking limiter 6, immediately cutting off the power supply, so that the electric hoist stops moving.

[0036] Referring to Figure 1 , Figure 2 and Figure 3 , one end of the cross bar 3 is provided with a fire breaking limiter 6, the fire breaking limiter 6 is used to control the stop of the electric hoist, and the setting of the fire breaking limiter 6 also improves the automation degree and operation convenience of the equipment. In the traditional operation of the electric hoist, the operator needs to pay attention to the running state of the equipment at all times, and manually stops the equipment when reaching the limit position, and after adopting the fire breaking limiter 6, the equipment can automatically identify and respond to the limit position or abnormal condition, realizing the function of automatic stop, greatly reducing the burden of the operator and improving the work efficiency.

[0037] The implementation principle of the utility model is: first, install the guide rope ring 1 on the electric hoist, then pass the steel wire through the guide rope groove 209 and the long slot hole 202, connect the arc-shaped pressing plate mechanism 2 on the first section of the guide rope ring 1 through bolts, connect the limiting plate 204 with the rotating groove 203 through the spring 205, so that the limiting plate 204 can be elastically displaced when subjected to external force;

[0038] When normally moving, the first arc-shaped plate 201 will press the ascending stopper 4 or the descending stopper 5 when moving to the limit position, triggering the fire breaking limiter, and once triggered, it will immediately cut off the power supply of the electric hoist, stopping the movement of the electric hoist, ensuring that it will not produce;

[0039] When the electric hoist is inclined, the steel wire will generate a lateral extrusion force on the limiting plate 204, which will first act on the limiting plate 204, making the limiting plate 204 overcome the elastic force of the spring 205 and rotate, and through the support rod 206, the cross bar 3 is pressed tightly, so that when the guide rope continues to move, the cross bar 3 is pushed to move and trigger the fire breaking limiter, and once triggered, it will immediately cut off the power supply of the electric hoist, stopping the movement of the electric hoist, thereby preventing equipment damage or safety accidents caused by inclined tension. Embodiment two:

[0040] Referring to Figure 1 Figure 2 Figure 3 Figure 4 The opposite inner walls of the two limiting plates 204 are embedded with a plurality of balls 7 for reducing friction, the plurality of balls 7 are arranged, and the arrangement of the plurality of balls 7 further enhances the support and guiding effect of the limiting plate 204 on the steel wire, and when the steel wire is subjected to a lateral force, the balls 7 can roll to disperse the pressure, avoiding deformation or damage caused by excessive local pressure.

[0041] The implementation principle of the utility model is: first, by setting the ball 7, the friction when the steel wire slides between the long slot hole 202 and the limiting plate 204 is reduced, and the service life of the equipment is improved.

[0042] The parts not involved in the utility model are the same as or can be realized by the prior art, and will not be described in detail here.

[0043] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A dual layer automatic rope back reeling guide, characterized in that: The utility model relates to a guide rope loop (1) and the arc pressing plate mechanism (2) connected on the first section of guide rope loop (1) are not connected at the beginning and end, the arc pressing plate mechanism (2) includes first arc plate (201), long slot hole (202) is seted up on first arc plate (201), the opposite position of long slot hole (202) both sides is seted up with rotary groove (203), the rotary groove (203) is rotatably connected with limiting plate (204) inside, the one side of limiting plate (204) one end and rotary groove (203) between are provided with spring (205), The front surface of limiting plate (204) is fixedly connected with the supporting rod (206) for force transmission, one end of supporting rod (206) is fixedly connected with pressing block (207).

2. The dual level auto-rope guide of claim 1, wherein: The inner side of first arc plate (201) is provided with second arc plate (208), and guide rope groove (209) is formed in second arc plate (208).

3. The dual level automatic rope return line guide of claim 2, wherein: Both ends of second arc plate (208) are fixedly connected with first arc plate (201) through connecting rod (210), and guide rope groove (209) and long slot hole (202) are oppositely arranged.

4. The dual level auto-rope guide of claim 1, wherein: The opposite inner walls of the two limiting plates (204) are smooth planes, and one end of the long slot hole (202) is provided with a chamfer (211) for facilitating automatic rope return.

5. The dual level auto-rope guide of claim 1, wherein: A horizontal rod (3) is arranged above the arc pressing plate mechanism (2), and the two ends of the horizontal rod (3) are respectively fixedly connected with an upward stop block (4) and a downward stop block (5).

6. The dual level auto-rope guide of claim 5, wherein: A fire breaking limiter (6) is arranged at one end of the horizontal rod (3), and the fire breaking limiter (6) is used for controlling the electric hoist to stop.

7. The dual level auto-rope guide of claim 4, wherein: Rolling balls (7) for reducing friction are embedded on the opposite inner walls of the two limiting plates (204), and a plurality of rolling balls (7) are arranged.

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