Lifting rope traction device

Abstract

The utility model discloses a hoisting rope traction device which comprises a first sliding mechanism and a clamping mechanism, a sliding part of the first sliding mechanism is arranged in a sliding and driving mode in the first horizontal direction, and the clamping mechanism comprises two clamping jaw assemblies arranged on the sliding part in the first horizontal direction at intervals. The two clamping jaw assemblies can be arranged in a sliding driving mode in the second horizontal direction, so that the clamping parts of the two clamping jaw assemblies can stretch out of or retract to the first sliding mechanism on the same side, and the clamping mechanism is used for controlling the corresponding clamping part to loosen the lifting rope and retract and slide under the condition that any one clamping jaw assembly is moved to be close to an obstacle. According to the lifting rope traction device, the clamping jaw assemblies are controlled to stretch out and slide under the condition that any clamping jaw assembly passes through an obstacle, the corresponding clamping parts are controlled to clamp the lifting rope, automatic traction of the lifting rope can be achieved through the lifting rope traction device, the labor intensity of lifting rope installation is relieved, and the operation safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane production auxiliary equipment, and in particular relates to a lifting rope traction device. Background Art

[0002] The lifting rope is an important component for a truck-mounted crane to achieve lifting action when lifting heavy objects. On a truck-mounted crane, the lifting rope is led out from the guide rope pulley, then passes through several guide rope racks one by one, and finally is fixedly connected to the boom head after winding the pulley according to certain requirements. The existing lifting rope installation method is manual traction installation, which has a very high labor intensity, and the installation process of the lifting rope is an aerial operation. In order to pull the lifting rope, the installer needs to move frequently on the aerial platform, which poses a great safety risk. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the utility model provides a lifting rope traction device, which aims to solve the technical problems of high labor intensity and safety risks in manual traction of the lifting rope.

[0004] To achieve the above-mentioned purpose, the utility model provides a lifting rope traction device, wherein the lifting rope traction device includes a first sliding mechanism and a clamping mechanism; the sliding portion of the first sliding mechanism can be driven to slide along a first horizontal direction; the clamping mechanism includes two clamping jaw assemblies arranged on the sliding portion at intervals along the first horizontal direction, and both clamping jaw assemblies can be driven to slide along a second horizontal direction, so that the clamping portions of the two clamping jaw assemblies can extend or retract on the same side of the first sliding mechanism, and the clamping mechanism is used to control the corresponding clamping portion to release the lifting rope and retract and slide when any one of the clamping jaw assemblies moves close to an obstacle, and to control the extension and sliding and control the corresponding clamping portion to clamp the lifting rope when any one of the clamping jaw assemblies passes an obstacle and passes a predetermined distance.

[0005] In an embodiment of the utility model, the lifting rope traction device also includes a second sliding mechanism, which is used to carry the first sliding mechanism and allow the first sliding mechanism to be slidably driven along a second horizontal direction.

[0006] In the embodiment of the utility model, the number of the second sliding mechanisms is two, and the two second sliding mechanisms are respectively arranged at two ends of the first sliding mechanism.

[0007] In an embodiment of the utility model, the lifting rope traction device also includes a lifting mechanism, which is driven and connected to the second sliding mechanism and is used to adjust the height of the second sliding mechanism from the ground.

[0008] In an embodiment of the utility model, the first sliding mechanism includes a slide rail body, a rotating driving member and a slide plate configured as a sliding portion. The track on the slide rail body extends along a first horizontal direction, and the slide rail body is also provided with a rack body parallel to the track. The lower side of the slide plate is provided with a slider portion that slides with the track. The rotating driving member is provided on the slide plate and is connected to a gear body. The gear body is meshed with the rack body, and the two clamping jaw assemblies are both provided on the upper side of the slide plate.

[0009] In the embodiment of the utility model, the clamping mechanism further includes two obstacle detectors, which are arranged on the two clamping jaw assemblies in a one-to-one correspondence and are used to detect obstacles respectively.

[0010] In an embodiment of the utility model, the lifting rope traction device also includes two distance detectors, which are arranged on the two clamping jaw assemblies one by one. The distance detectors are used to detect the distance between the clamping jaw assembly and the obstacle, and the first sliding mechanism is used to drive the clamping mechanism to move according to the distance measured by the distance detector.

[0011] In an embodiment of the utility model, the lifting rope traction device also includes a guide sleeve, which is detachably mounted on the clamping front section of the lifting rope and can be clamped by the two clamping claw assemblies.

[0012] In an embodiment of the utility model, the guide sleeve includes a sleeve body and a limiting cap. The sleeve body is used to be sleeved on the clamping front section for clamping by two clamping jaw assemblies. The limiting cap forms a rope passing space for the lifting rope to pass through. One end of the limiting cap is sleeved on the end of the sleeve body, and the other end is used to clamp the lifting rope.

[0013] In an embodiment of the utility model, the lifting rope traction device also includes a safety grating, which is arranged around the first sliding mechanism and is used to send a stop signal to the first sliding mechanism in a triggered state.

[0014] Through the above technical solution, the lifting rope traction device provided by the embodiment of the utility model has the following beneficial effects:

[0015] When the hoisting rope traction device is used to traction the hoisting rope of the crane, the hoisting rope is drawn out from the guide rope pulley, and the two clamping claw assemblies clamp the hoisting rope at the same time, and then the hoisting rope is pulled along the first horizontal direction by the first sliding mechanism. When the clamping mechanism approaches the obstacle to a certain distance, the clamping claw assembly closest to the obstacle first releases the hoisting rope and retracts and slides along the second horizontal direction, so that the clamping claw assembly is staggered with the obstacle in the second horizontal direction. As the sliding part continues to move, the clamping claw assembly passes the obstacle and passes a predetermined distance, and then the clamping claw assembly extends and slides along the second horizontal direction and clamps the hoisting rope again. For the other clamping claw assembly, the above steps are repeated to make it pass the obstacle. Then, through the hoisting rope traction device, the hoisting rope can be pulled smoothly through the obstacle, thereby realizing the automatic traction of the hoisting rope, reducing the labor intensity of the hoisting rope installation, and improving the safety of the operation.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 is a top view of a lifting rope traction device according to an embodiment of the utility model;

[0019] Figure 2 It is a front view of a lifting rope traction device according to an embodiment of the utility model;

[0020] Figure 3 is a side view of a lifting rope traction device according to an embodiment of the utility model;

[0021] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0022] Figure 5 It is a schematic diagram of a guide sleeve according to an embodiment of the utility model.

[0023] Description of Reference Numerals

[0024] 1 first sliding mechanism 11 slide rail body

[0025] 111 rail 112 rack body

[0026] 12 Rotating drive member 13 Slide plate

[0027] 14 Gear body 15 Slider part

[0028] 2 Clamping mechanism 21 Clamping jaw assembly

[0029] 211 clamping part 212 moving part

[0030] 3 Second sliding mechanism 4 Lifting mechanism

[0031] 5 Guide sleeve 51 Sleeve body

[0032] 52 Limiting cap 6 Lifting rope DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] The hoisting rope traction device of the present utility model is described below with reference to the accompanying drawings.

[0035] like Figure 1 and Figure 3 As shown, the utility model provides a lifting rope traction device, wherein the lifting rope traction device comprises:

[0036] A first sliding mechanism 1, wherein a sliding portion of the first sliding mechanism 1 is slidably driven along a first horizontal direction;

[0037] The clamping mechanism 2 includes two jaw assemblies 21 arranged on the sliding part at intervals along the first horizontal direction. Both jaw assemblies 21 can be slidably driven along the second horizontal direction so that the clamping parts 211 of the two jaw assemblies 21 can extend or retract on the same side of the first sliding mechanism 1. The clamping mechanism 2 is used to control the corresponding clamping part 211 to release the lifting rope 6 and retract and slide when any one of the jaw assemblies 21 moves close to an obstacle, and to control the corresponding clamping part 211 to extend and slide and clamp the lifting rope 6 when any one of the jaw assemblies 21 passes through an obstacle.

[0038] When the hoisting rope traction device is used to traction the hoisting rope 6 of the crane, the hoisting rope 6 is led out from the guide rope pulley, and the two clamping claw assemblies 21 clamp the hoisting rope 6 at the same time, and then the hoisting rope 6 is pulled along the first horizontal direction by the first sliding mechanism 1. When the clamping mechanism 2 approaches the obstacle to a certain distance, the clamping claw assembly 21 closest to the obstacle first releases the hoisting rope 6 and retracts and slides along the second horizontal direction, so that the clamping claw assembly 21 is staggered with the obstacle in the second horizontal direction. As the sliding part continues to move, the clamping claw assembly 21 passes the obstacle and passes a predetermined distance. Then, the clamping claw assembly 21 extends and slides along the second horizontal direction and clamps the hoisting rope 6 again. For the other clamping claw assembly 21, the above steps are repeated to make it pass through the obstacle. Then, through the hoisting rope traction device, the hoisting rope 6 can be pulled through the obstacle smoothly, thereby realizing the automatic traction of the hoisting rope 6, reducing the labor intensity of installing the hoisting rope 6, and improving the safety of the operation.

[0039] It should be noted that the lifting rope traction device disclosed in the utility model is suitable for various scenarios where the traction rope needs to pass through obstacles, and is particularly suitable for traction of the lifting rope 6 of the truck crane. In the following embodiments, other structures and beneficial effects of the lifting rope traction device are also described based on the traction operation of the lifting rope 6 of the truck crane. The obstacle is generally a rope guide frame, and the “first horizontal direction” is Figure 1 The X-axis direction is shown as the “second horizontal direction”. Figure 1 In the Y-axis direction shown, when performing the traction operation, the boom of the truck crane is arranged along the X-axis direction.

[0040] like Figures 1 to 3 As shown, in an embodiment of the utility model, the lifting rope traction device also includes a second sliding mechanism 3 and a lifting mechanism 4, the second sliding mechanism 3 is used to carry the first sliding mechanism 1 and can be driven to slide along the second horizontal direction for the first sliding mechanism 1, and the lifting mechanism 4 drives and connects the second sliding mechanism 3. Since there are differences in width, height and other dimensions for different types of truck cranes, the lifting rope traction device with a single moving direction cannot be adapted to truck cranes of different models. By setting the second sliding mechanism 3 and the lifting mechanism 4, the horizontal position and height of the first sliding mechanism 1 can be adjusted so that the clamping mechanism 2 can smoothly clamp the lifting rope 6, thereby improving the versatility of the lifting rope traction device. Specifically, the second sliding mechanism 3 drives the first sliding mechanism 1 by means of gear rack transmission or screw transmission, and the lifting mechanism 4 is set as a lifting cylinder or a screw.

[0041] like Figure 3 and Figure 4As shown, in the embodiment of the utility model, the first sliding mechanism 1 includes a slide rail body 11, a rotary drive member 12 and a slide plate 13 provided on the sliding portion, the track 111 on the slide rail body 11 is extended along the first horizontal direction, and the slide rail body 11 is also provided with a rack body 112 parallel to the track 111, the lower side of the slide plate 13 is provided with a slider portion 15 that slides with the track 111, the rotary drive member 12 is provided on the slide plate 13 and connected with a gear body 14, the gear body 14 is meshed with the rack body 112, and the two clamping jaw assemblies 21 are both provided on the upper side of the slide plate 13. Then the first sliding mechanism 1 controls the movement by means of a gear rack, and the rotary drive member 12 is correspondingly provided as a motor, so as to realize the precise control of the moving distance; the provision of the track 111 and the slider portion 15 can reduce the friction resistance of the sliding portion, so as to reduce the requirement for the rated power of the motor, and can improve the stability of the movement of the slide plate 13. Specifically, there are two tracks 111, and a groove is formed between the two tracks 111. One side wall of the groove is provided with a rack body 112. Of course, the utility model is not limited thereto, and the sliding part can also adopt a transmission mode such as chain transmission, screw transmission, etc.

[0042] In the embodiment of the utility model, the clamping mechanism 2 also includes two obstacle detectors, which are arranged on the two clamping jaw assemblies 21 one by one and are used to detect obstacles respectively. When the obstacle detector detects an obstacle, it will send a signal to the control system of the lifting rope traction device. After receiving the signal, the control system immediately controls the clamping part 211 of the corresponding clamping jaw assembly 21 to open, and the moving part 212 to retract accordingly. When the clamping jaw assembly 21 passes the obstacle, the control system controls the moving part 212 of the clamping jaw assembly 21 to extend accordingly, and the clamping part 211 re-clamps the lifting rope 6. Specifically, the obstacle detector is preferably an infrared sensor. Since it is a conventional technology in the field to detect obstacles and control the corresponding mechanism action by infrared sensors, the specific control logic and method will not be repeated here.

[0043] In the embodiment of the utility model, the lifting rope traction device also includes two distance detectors, which are arranged on the two clamping jaw assemblies 21 one by one. The distance detector is used to detect the distance between the clamping jaw assembly 21 and the obstacle, and the first sliding mechanism 1 is used to control the movement of the clamping mechanism 2 according to the distance measured by the distance detector. The distance detector can accurately obtain the distance between the clamping jaw assembly 21 and the obstacle. After receiving the distance parameter fed back by the distance detector, the control system controls the corresponding movement of the slider 15 to ensure that the clamping jaw assembly 21 passes the obstacle smoothly. Specifically, the distance detector is preferably an optical ruler. Since it is a conventional technology in the field to detect the distance of the obstacle by an optical ruler, the specific control logic and method will not be repeated here.

[0044] In the embodiment of the utility model, both the distance detector and the obstacle detector can adopt a visual system to replace the optical ruler and the infrared sensing device in the above specific embodiment.

[0045] like Figure 5 As shown, in the embodiment of the utility model, the lifting rope traction device also includes a guide sleeve 5, which is detachably mounted on the clamping front section of the lifting rope 6 and can be clamped by two clamping claw assemblies 21. The lifting rope 6 is generally made of a plurality of fine steel wires interwoven and easy to bend. It is difficult for the clamping claw assembly 21 to re-clamp the lifting rope 6 after releasing the lifting rope 6. By providing a rigid guide sleeve 5, the bending of the clamping front section of the lifting rope 6 can be avoided. Even if one of the clamping claw assemblies 21 is released, the guide sleeve 5 can be maintained at the current horizontal height, thereby ensuring the reliability of the re-clamping of the clamping claw assembly 21. Specifically, the clamping front end refers to a section of the end portion of the lifting rope 6. Before the device starts working, the staff needs to complete the preliminary work preparation: remove the clamping front section of the lifting rope 6 from the winch, complete the installation of the guide sleeve 5, and finally fix the installed guide sleeve 5 to the clamping device.

[0046] In the embodiment of the utility model, the guide sleeve 5 includes a sleeve body 51 and a limiting cap 52. The sleeve body 51 is used to be sleeved on the clamping front section for clamping by the two clamping jaw assemblies 21. The limiting cap 52 forms a rope passing space for the lifting rope 6 to pass through. One end of the limiting cap 52 is sleeved on the end of the sleeve body 51, and the other end is used to hold and clamp the lifting rope 6. On the one hand, the limiting cap 52 can be fixedly connected with the lifting rope 6 to prevent the lifting rope 6 from coming out of the guide sleeve 5 during the traction process; on the other hand, the limiting cap 52 can play a stopping role to prevent the guide sleeve 5 from coming out of the clamping portion 211 of the clamping jaw assembly 21.

[0047] In an embodiment of the utility model, the lifting rope traction device also includes a safety grating, which is surrounded by the first sliding mechanism 1. After the lifting rope traction device is started, if a person enters the working area, the safety grating can be triggered to send a stop signal and a safety alarm. After the personnel have evacuated, the start button of the device is pressed and the device can be operated to ensure the safety of the operation.

[0048] In the embodiment of the utility model, the lifting rope traction device also includes an electrical system for controlling the first sliding mechanism 1, the second sliding mechanism 3, the lifting mechanism 4 and the clamping mechanism 2. The control process of the system is as follows:

[0049] Step 1: Obtain the size, height and other dimensional information of the crane to be assembled from the workstation industrial computer;

[0050] Step 2: Control the lifting mechanism 4 and the second sliding mechanism 3 to adjust the position of the clamping mechanism 2 according to the acquired size information;

[0051] Step 3, control the two clamping jaw assemblies 21 to clamp the guide sleeve 5 set on the lifting rope 6;

[0052] Step 4, controlling the first sliding mechanism 1 to drive the clamping mechanism 2 to move, thereby completing the traction of the lifting rope 6;

[0053] Step 5: After traction is completed, control each mechanism to reset.

[0054] The following beneficial effects can be achieved by the lifting rope traction device:

[0055] 1. It can realize the fully automatic traction of the lifting rope 6, without the need for manual traction, thus reducing the labor intensity of personnel;

[0056] 2. Reduce the movement of personnel during high-altitude operations to reduce risks;

[0057] 3. The moving speed of the sliding part can be maintained at a uniform speed, and the tension of the lifting rope 6 can be better controlled compared to manual traction;

[0058] 4. Automatic assembly realizes unmanned operation, with a higher degree of automation, and reduces manual work and reduces labor costs.

[0059] It should be noted that in step three, the installation of the guide sleeve 5 needs to be done manually, and the clamping operation of the guide sleeve 5 can be done manually or automatically by a corresponding robot arm in cooperation with a visual device.

[0060] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lifting rope traction device, characterized in that: The lifting rope traction device comprises: A first sliding mechanism (1), wherein a sliding portion of the first sliding mechanism (1) is arranged to be slidably driven along a first horizontal direction; The clamping mechanism (2) comprises two clamping jaw assemblies (21) arranged on the sliding part at intervals along the first horizontal direction. Both the clamping jaw assemblies (21) can be slidably driven along the second horizontal direction so that the clamping parts (211) of the two clamping jaw assemblies (21) can extend or retract on the same side of the first sliding mechanism (1). The clamping mechanism (2) is used to control the corresponding clamping part (211) to release the lifting rope (6) and retract and slide when any one of the clamping jaw assemblies (21) moves close to an obstacle, and to control the corresponding clamping part (211) to extend and slide and clamp the lifting rope (6) when any one of the clamping jaw assemblies (21) passes through the obstacle.

2. The lifting rope traction device according to claim 1, characterized in that: The lifting rope traction device also includes a second sliding mechanism (3), which is used to carry the first sliding mechanism (1) and enable the first sliding mechanism (1) to be slidably driven along a second horizontal direction.

3. The lifting rope traction device according to claim 2, characterized in that: The number of the second sliding mechanisms (3) is two, and the two second sliding mechanisms (3) are respectively arranged at two ends of the first sliding mechanism (1).

4. The lifting rope traction device according to claim 2, characterized in that: The lifting rope traction device also includes a lifting mechanism (4), which is driven and connected to the second sliding mechanism (3) and is used to adjust the height of the second sliding mechanism (3) above the ground.

5. The lifting rope traction device according to claim 1, characterized in that: The first sliding mechanism (1) comprises a slide rail body (11), a rotating driving member (12) and a slide plate (13) which is configured as the sliding portion. The track (111) on the slide rail body (11) is extended along a first horizontal direction, and the slide rail body (11) is also provided with a rack body (112) which is parallel to the track (111). The lower side of the slide plate (13) is provided with a slider portion (15) which is slidingly matched with the track (111). The rotating driving member (12) is provided on the slide plate (13) and is connected to a gear body (14). The gear body (14) is meshed with the rack body (112). The two clamping jaw assemblies (21) are both provided on the upper side of the slide plate (13).

6. The lifting rope traction device according to any one of claims 1 to 5, characterized in that: The clamping mechanism (2) further comprises two obstacle detectors, which are arranged on the two clamping jaw assemblies (21) in a one-to-one correspondence and are used to detect the obstacles respectively.

7. The lifting rope traction device according to any one of claims 1 to 5, characterized in that: The lifting rope traction device also includes two distance detectors, which are arranged on the two clamping jaw assemblies (21) in a one-to-one correspondence. The distance detectors are used to detect the distance between the clamping jaw assembly (21) and the obstacle. The first sliding mechanism (1) is used to drive the clamping mechanism (2) to move according to the distance measured by the distance detector.

8. The lifting rope traction device according to any one of claims 1 to 5, characterized in that: The lifting rope traction device also includes a guide sleeve (5), which is detachably mounted on the clamping front section of the lifting rope (6) and can be clamped by the two clamping jaw assemblies (21).

9. The lifting rope traction device according to claim 8, characterized in that: The guide sleeve (5) includes a sleeve body (51) and a limiting cap (52), wherein the sleeve body (51) is used to be sleeved on the clamping front section for clamping by the two clamping jaw assemblies (21), and the limiting cap (52) is formed with a rope passing space for the lifting rope (6) to pass through, and one end of the limiting cap (52) is sleeved on the end of the sleeve body (51), and the other end is used to clamp the lifting rope (6).

10. The lifting rope traction device according to any one of claims 1 to 5, characterized in that: The lifting rope traction device also includes a safety grating, which is arranged around the first sliding mechanism (1) and is used to send a stop signal to the first sliding mechanism (1) in a triggered state.

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