Device and method for detecting dip angle of lifting rope without fixed end

Abstract

The invention provides a non-fixed-end lifting rope inclination angle detection device and method, relates to the technical field of lifting, and is applied to a lifting system adopting a non-fixed-end lifting rope. The non-fixed-end lifting rope inclination angle detection device comprises a measuring mechanism and a transmission mechanism, and the measuring mechanism comprises a follow-up rod and an inclination angle sensor; one end of the follow-up rod is used for being rotationally connected with a cross beam for installing a lifting rope, the other end of the follow-up rod freely droops, the tilt angle sensor is arranged on the follow-up rod and used for detecting the tilt angle of the follow-up rod, and the transmission mechanism comprises a fixing assembly and a transmission assembly. The fixing assembly is arranged in the follow-up rod and arranged between the follow-up rod and the lifting rope, a guiding through hole is formed in the fixing assembly in the horizontal direction, and after the transmission assembly penetrates through the guiding through hole, one end of the transmission assembly makes contact with the lifting rope, and the other end of the transmission assembly makes contact with the follow-up rod. The safety of hoisting operation can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting, and in particular to a device and method for detecting the inclination angle of a hoisting rope without a fixed end. Background Art

[0002] The lifting system is an indispensable equipment in modern industry and construction. It is widely used in material handling, construction, installation of large equipment and other occasions. The effective use of the lifting system not only improves work efficiency, but also ensures operation safety. It is an important part of modern engineering management.

[0003] In the related technology, the lifting system of the rope without fixed ends has higher flexibility than the traditional lifting system with fixed ropes, and is widely used in practical applications. Both ends of the rope without fixed ends are connected to the winch drum, and the rope is collected and released by controlling the rolling of the drum. However, since the rope without fixed ends lacks fixed points for inclination detection, it is difficult for the operator to learn the inclination dynamics of the rope in time, affecting the safety of the lifting operation. Summary of the invention

[0004] The problem solved by the invention is: how to improve the safety of hoisting operation.

[0005] In order to solve the above problems, the present invention provides a device and method for detecting the inclination angle of a suspension rope without a fixed end.

[0006] In a first aspect, the present invention provides an instrument panel crossbeam assembly, which is applied to a lifting system using a lifting rope without a fixed end, wherein the inclination detection device of the lifting rope without a fixed end comprises a measuring mechanism and a transmission mechanism, wherein the measuring mechanism comprises a follower rod and an inclination sensor, wherein one end of the follower rod is used for rotationally connecting with the crossbeam on which the lifting rope is installed, and the other end of the follower rod is freely hanging, and the inclination sensor is arranged on the follower rod for detecting the inclination of the follower rod, and the transmission mechanism comprises a fixing component and a transmission component, wherein the upper end of the fixing component is used for fixed connection with the crossbeam on which the lifting rope is installed, and is arranged between the follower rod and the lifting rope, and a guide through hole is opened in the fixing component along the horizontal direction, and after the transmission component is passed through the guide through hole, one end of the transmission component contacts with the lifting rope, and the other end of the transmission component contacts with the follower rod.

[0007] Optionally, the transmission assembly includes a first transmission rod, a second transmission rod, a third transmission rod and a fourth transmission rod, the first end of the first transmission rod is connected to the first end of the third transmission rod, the second end of the first transmission rod is connected to the first end of the fourth transmission rod, the first end of the second transmission rod is connected to the second end of the third transmission rod, the second end of the second transmission rod is connected to the second end of the fourth transmission rod, the first transmission rod and the second transmission rod have the same length, the fixing assembly includes a first fixing body and a second fixing body, the upper end of the first fixing body is used to be connected to the crossbeam, the upper end of the second fixing body is used to be connected to the crossbeam, the first fixing body is provided with a first guide through hole along the horizontal direction, the second fixing body is provided with a second guide through hole along the horizontal direction, the first transmission rod is penetrated through the first guide through hole, the second transmission rod is penetrated through the second guide through hole, the rod body of the third transmission rod is used to contact the suspension rope, and the rod body of the fourth transmission rod is in contact with the follower rod.

[0008] Optionally, the fixing assembly further includes a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to the upper end of the first fixing body, the other end of the first connecting rod is connected to the cross beam, one end of the second connecting rod is connected to the upper end of the second fixing body, the other end of the second connecting rod is connected to the cross beam, and the first connecting rod and the second connecting rod have the same length.

[0009] Optionally, the fixing assembly further includes a third fixing body, a fourth fixing body, a third connecting rod and a fourth connecting rod, one end of the third connecting rod is connected to the upper end of the third fixing body, the other end of the third connecting rod is connected to the cross beam, one end of the fourth connecting rod is connected to the upper end of the fourth fixing body, the other end of the fourth connecting rod is connected to the cross beam, the third fixing body is provided with a third guide through hole along the horizontal direction, the first transmission rod is passed through the third guide through hole, the fourth fixing body is provided with a fourth guide through hole along the horizontal direction, the second transmission rod is passed through the fourth through hole, the first fixing body and the second fixing body are arranged at one end of the transmission assembly close to the follower rod, the third fixing body and the fourth fixing body are arranged at one end of the transmission assembly away from the follower rod, and the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod have the same length.

[0010] Optionally, the fixing assembly further includes a first transmission wheel group and a second transmission wheel group, the top wall of the first guide through hole is provided with the first transmission wheel group, the bottom wall of the first guide through hole is provided with the second transmission wheel group, and the distance between the first transmission wheel group and the second transmission wheel group matches the diameter of the first transmission rod.

[0011] Optionally, the fixing assembly further includes a third transmission wheel group and a fourth transmission wheel group, the third transmission wheel group is disposed on the top wall of the second guide through hole, the fourth transmission wheel group is disposed on the bottom wall of the second guide through hole, and the distance between the third transmission wheel group and the fourth transmission wheel group matches the diameter of the second transmission rod.

[0012] Optionally, the fixing assembly further includes a fifth transmission wheel group and a sixth transmission wheel group, the fifth transmission wheel group is disposed on the top wall of the third guide through hole, the sixth transmission wheel group is disposed on the bottom wall of the third guide through hole, and the distance between the fifth transmission wheel group and the sixth transmission wheel group matches the diameter of the first transmission rod.

[0013] Optionally, the fixing assembly further includes a seventh transmission wheel set and an eighth transmission wheel set, the top wall of the fourth guide through hole is provided with the seventh transmission wheel set, the bottom wall of the fourth guide through hole is provided with the eighth transmission wheel set, and the distance between the seventh transmission wheel set and the eighth transmission wheel set matches the diameter of the second transmission rod.

[0014] Optionally, the measuring mechanism also includes a first connecting plate, a second connecting plate, a first nut and a second nut. One end of the follower rod vertically extends a first short rod and a second short rod symmetrically along the radial direction of the follower rod, and the first short rod and the second short rod are respectively provided with threads at one end away from the follower rod, and the threads match the first nut and the second nut. One end of the first connecting plate and the second connecting plate are respectively connected to the crossbeam, and a first through hole is provided on the first connecting plate, and one end of the first short rod is threadedly connected to the first nut after passing through the first through hole. A second through hole is provided on the second connecting plate, and one end of the second short rod is threadedly connected to the second nut after passing through the second through hole. The position of the first through hole on the first connecting plate matches the position of the second through hole on the second connecting plate, and the extension direction of the first short rod and the second short rod are perpendicular to the vertical direction and the horizontal direction.

[0015] In a second aspect, the present invention provides a method for detecting the inclination angle of a suspension rope. Based on the device for detecting the inclination angle of a suspension rope without a fixed end described in the first aspect, the method for detecting the inclination angle of a suspension rope comprises:

[0016] Acquire a first distance from a contact point between the follower rod and the transmission assembly to a crossbeam on which a sling rope is installed in a stationary state, an inclination angle of the follower rod detected by an inclination sensor, and a second distance from a contact point between the sling rope and the transmission assembly to a rope-out point of a pulley, wherein the pulley is used to install the sling rope;

[0017] According to the first distance, the second distance and the follower rod inclination angle, the inclination angle of the suspension rope is obtained by using a preset inclination angle relationship of the suspension rope;

[0018] The inclination relationship of the suspension rope satisfies:

[0019]

[0020] Wherein, α is the inclination angle of the suspension rope, θ is the inclination angle of the follower rod, H1 is the first distance, and H2 is the second distance.

[0021] The beneficial effect of the inclination detection device of the non-fixed-end hoisting rope of the present invention is: by rotating one end of the follower rod with the crossbeam, the other end hangs freely, and one end of the transmission component contacts the hoisting rope, and the other end contacts the follower rod, the transmission component can transmit the tiny dynamic changes of the hoisting rope to the follower rod in real time, so that the follower rod can swing along with the hoisting rope through the transmission component, so that the swing change of the hoisting rope can be accurately mapped through the swing of the follower rod, and the inclination sensor arranged on the follower rod can directly obtain the inclination data of the follower rod. Since the state of the follower rod is closely related to the swing of the hoisting rope, the real-time inclination angle of the hoisting rope can be accurately calculated through the inclination angle of the follower rod detected in real time, thereby providing accurate angle parameters for the hoisting operation, ensuring accurate positioning and control of the hoisting process, avoiding safety hazards caused by abnormal inclination of the hoisting rope, and improving the safety of the hoisting operation. By fixing the upper end of the fixed component of the transmission mechanism to the crossbeam and locating it between the follower rod and the lifting rope, a stable support is provided for the entire transmission link. At the same time, the transmission component is constrained by the horizontal guide through hole, making the horizontal movement of the transmission component more stable and standardized, reducing errors caused by shaking, offset, etc., and improving the accuracy of inclination detection. This structural design cleverly solves the problem of difficulty in directly detecting the inclination of a lifting rope without a fixed end. Through the combination of mechanical transmission and angle measurement, an effective inclination monitoring method is provided for the hoisting operation of a lifting rope without a fixed end, which helps to improve the safety and stability of the hoisting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the inclination angle detection device of the suspension rope without a fixed end in an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the inclination angle detection device of the suspension rope without a fixed end in an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the structure of the follower rod in the embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the transmission assembly in an embodiment of the present invention;

[0026] Figure 5 The figure is a flow chart of a method for detecting the inclination angle of a suspension rope in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1-measuring mechanism; 11-follow-up rod; 12-tilt sensor; 13-first connecting plate; 14-second connecting plate; 15-first nut; 16-second nut; 17-first short rod; 18-second short rod; 2-transmission mechanism; 21-fixing assembly; 2101-first fixed body; 2102-second fixed body; 2103-third fixed body; 2104-fourth fixed body; 2105-first connecting rod; 2106-second connecting rod; 2107-third connecting rod; 2108-fourth connecting rod; 2109-first transmission wheel set; 2110-second transmission wheel set; 2111-third transmission wheel set; 2112-fourth transmission wheel set; 2113-fifth transmission wheel set; 2114-sixth transmission wheel set; 2115-seventh transmission wheel set; 2116-eighth transmission wheel set; 22-transmission assembly; 221-first transmission rod; 222-second transmission rod; 223-third transmission rod; 224-fourth transmission rod; 3-suspension rope; 4-crossbeam; 5-pulley. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0030] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0032] In the related art, the traditional lifting system with fixed ropes is to fix one end of the rope and control the retraction and release of the other end through a pulley and a winch. The lifting system with no fixed end ropes connects both ends of the rope to the winch drum, and operates the rope retraction and release through the rolling of the drum. This method does not require a specific fixed point and shows higher flexibility in practical applications, so it is widely used. However, the lifting system with no fixed end ropes has obvious defects. In terms of inclination detection, the traditional fixed rope lifting system can install equipment at the fixed end of the rope to detect the inclination. However, since all the ropes without fixed ends are in an up and down moving state, there is no fixed position for installing the inclination sensor, resulting in the operator being unable to obtain the dynamic changes of the rope inclination in time. In the lifting operation, the rope inclination is a key factor related to safety. Failure to grasp the inclination may make it difficult for the operator to judge the balance state and movement trend of the hoisted object, increasing the risk of safety accidents such as shaking, tilting and even falling during the lifting process, seriously affecting the safety of the lifting operation.

[0033] In view of the problems existing in the above related technologies, the present invention provides a device and method for detecting the inclination angle of a suspension rope without a fixed end, which will be described in detail below in conjunction with specific embodiments.

[0034] like Figure 1 and 2 As shown, an inclination detection device for a suspension rope without a fixed end provided by an embodiment of the present invention is applied to a hoisting system using a suspension rope 3 without a fixed end. The inclination detection device for a suspension rope without a fixed end comprises a measuring mechanism 1 and a transmission mechanism 2. The measuring mechanism 1 comprises a follower rod 11 and an inclination sensor 12. One end of the follower rod 11 is used for rotationally connecting with a cross beam 4 on which the suspension rope 3 is installed, and the other end of the follower rod 11 is freely hanging. The inclination sensor 12 is arranged on the follower rod 11 for detecting the inclination of the follower rod 11. The transmission mechanism 2 comprises a fixing component 21 and a transmission component 22. The upper end of the fixing component 21 is used for fixed connection with the cross beam 4 on which the suspension rope 3 is installed, and is arranged between the follower rod 11 and the suspension rope 3. A guide through hole is opened in the fixing component 21 along the horizontal direction. After the transmission component 22 is inserted into the guide through hole, one end of the transmission component 22 contacts with the suspension rope 3, and the other end of the transmission component 22 contacts with the follower rod 11.

[0035] Specifically, one end of the follower rod 11 of the measuring mechanism 1 is rotatably connected to the crossbeam 4 on which the suspension rope 3 is installed. This connection mode enables the follower rod 11 to flexibly rotate relative to the crossbeam 4, and the other end is freely drooped to ensure that it can swing naturally when subjected to force. The inclination sensor 12 is installed on the follower rod 11, which can detect the inclination change of the follower rod 11 in real time, and then calculate the inclination change of the suspension rope 3 according to the inclination of the follower rod 11. The upper end of the fixed component 21 of the transmission mechanism 2 is connected to the crossbeam 4 on which the suspension rope 3 is installed, and the fixed component 21 and the crossbeam 4 can be connected by a connecting piece, and the fixed component 21 is arranged between the follower rod 11 and the suspension rope 3 to provide stable support for the transmission component 22. The guide through hole opened in the horizontal direction in the fixed component 21 provides a precise guide path for the movement of the transmission component 22, so that the transmission component 22 can maintain horizontal movement in the guide through hole, avoid the error caused by the inclination calculation of the suspension rope 3 caused by the inclination of the transmission component 22, and improve the accuracy of the inclination detection of the suspension rope 3. The transmission component 22 passes through the guide hole, and one end of the transmission component 22 is in contact with the suspension rope 3. When the suspension rope 3 swings or tilts, the movement of the suspension rope 3 can be transmitted to the transmission component 22, causing it to move horizontally. The other end of the transmission component 22 is in contact with the follower rod 11, thereby transmitting the horizontal movement of the suspension rope 3 to the follower rod 11 through the transmission component 22, causing the follower rod 11 to tilt, and the inclination sensor 12 arranged on the follower rod 11 detects the inclination angle, thereby calculating the current corresponding inclination angle of the suspension rope 3 based on the detected inclination angle.

[0036] In this embodiment, one end of the follower rod 11 is rotatably connected to the crossbeam 4, and the other end is freely hanging, and one end of the transmission component 22 contacts the suspension rope 3, and the other end contacts the follower rod 11. Through the transmission component 22, the slight dynamic changes of the suspension rope 3 can be transmitted to the follower rod 11 in real time, so that the follower rod 11 can swing along with the suspension rope 3 through the transmission component 22, so that the swing change of the suspension rope 3 can be accurately mapped through the swing of the follower rod 11, and the inclination sensor 12 set on the follower rod 11 can directly obtain the inclination data of the follower rod 11. Since the state of the follower rod 11 is closely related to the swing of the suspension rope 3, the real-time inclination angle of the suspension rope 3 can be accurately calculated through the inclination angle of the follower rod 11 detected in real time, thereby providing accurate angle parameters for the lifting operation, ensuring accurate positioning and control of the lifting process, avoiding safety hazards caused by abnormal inclination of the suspension rope 3, and improving the safety of the lifting operation. By fixing the upper end of the fixed component 21 of the transmission mechanism 2 to the crossbeam 4 and locating it between the follower rod 11 and the suspension rope 3, a stable support is provided for the entire transmission link. At the same time, the transmission component 22 is constrained by the horizontal guide hole, so that the horizontal movement of the transmission component 22 is more stable and standardized, reducing errors caused by shaking, offset, etc., and improving the accuracy of inclination detection. This structural design cleverly solves the problem that it is difficult to directly detect the inclination of the suspension rope 33 without a fixed end. Through the combination of mechanical transmission and angle measurement, an effective inclination monitoring method is provided for the hoisting operation of the suspension rope 33 without a fixed end, which helps to improve the safety and stability of the hoisting process.

[0037] Alternatively, if Figure 1 , 2As described in and 4, the transmission assembly 22 includes a first transmission rod 221, a second transmission rod 222, a third transmission rod 223 and a fourth transmission rod 224, the first end of the first transmission rod 221 is connected to the first end of the third transmission rod 223, the second end of the first transmission rod 221 is connected to the first end of the fourth transmission rod 224, the first end of the second transmission rod 222 is connected to the second end of the third transmission rod 223, the second end of the second transmission rod 222 is connected to the second end of the fourth transmission rod 224, the first transmission rod 221 and the second transmission rod 222 are the same length, and the fixing assembly 21 includes a first fixing rod 221. body 2101 and a second fixed body 2102, the upper end of the first fixed body 2101 is used to connect with the crossbeam 4, the upper end of the second fixed body 2102 is used to connect with the crossbeam 4, the first fixed body 2101 is provided with a first guide through hole along the horizontal direction, the second fixed body 2102 is provided with a second guide through hole along the horizontal direction, the first transmission rod 221 is penetrated through the first guide through hole, the second transmission rod 222 is penetrated through the second guide through hole, the rod body of the third transmission rod 223 is used to contact with the suspension rope 3, and the rod body of the fourth transmission rod 224 is in contact with the follower rod 11.

[0038] Specifically, the transmission assembly 22 is composed of a first transmission rod 221, a second transmission rod 222, a third transmission rod 223 and a fourth transmission rod 224. The first end of the first transmission rod 221 is connected to the rod body on one side of the first end of the third transmission rod 223, and the second end of the first transmission rod 221 is connected to the rod body on one side of the first end of the fourth transmission rod 224, so that the first transmission rod 221 is located between the third transmission rod 223 and the fourth transmission rod 224. Similarly, the first end of the second transmission rod 222 is connected to the rod body on one side of the second end of the third transmission rod 223, and the second end of the second transmission rod 222 is connected to the rod body on one side of the second end of the fourth transmission rod 224, so that the second transmission rod 222 is located between the third transmission rod 223 and the fourth transmission rod 224, so that a certain distance is maintained between the first transmission rod 221 and the second transmission rod 222, which can improve the stability of the transmission assembly 22, and the first transmission rod 221 and the second transmission rod 222 are the same length, so that a stable connection relationship is formed between the transmission rods. As a component directly in contact with the suspension rope 3, the third transmission rod 223 will first sense the slight displacement of the suspension rope 3, such as the change in inclination angle and shaking, and then accurately transmit it to the fourth transmission rod 224 by relying on the rigid connection between the first and second transmission rods 222. For example, if the suspension rope 3 is tilted, the third transmission rod 223 is subjected to the horizontal thrust of the suspension rope 3, causing it to produce a horizontal displacement. This force will be transmitted to the fourth transmission rod 224 synchronously and proportionally through two transmission rods of the same length, causing the fourth transmission rod 224 to also produce the same horizontal displacement, and the fourth transmission rod 224 pushes the follower rod 11 in contact with it to swing.

[0039] Furthermore, the fixing assembly 21 is divided into a first fixing body 2101 and a second fixing body 2102, both of which are connected to the cross beam 4 at their upper ends, and can be connected by a connecting piece, so that the fixing assembly 21 and the cross beam 4 maintain a certain distance, which is conducive to the calculation of the inclination angle of the suspension rope 3. The double fixing bodies cooperate with the first transmission rod 221 and the second transmission rod 222 of the transmission assembly 22, thereby enhancing the stability of the entire transmission mechanism 2, preventing the transmission assembly 22 inserted therein from deflecting during movement, thereby ensuring the accuracy of the final calculation of the inclination angle of the suspension rope 3. In addition, a first guide through hole is provided in the first fixing body 2101 for the first transmission rod 221 to be inserted therein, and a second guide through hole is provided in the second fixing body 2102 for the second transmission rod 222 to be inserted therein. The movement trajectory of the first transmission rod 221 and the second transmission rod 222 is strictly limited by the horizontal guide hole, so that they can only perform linear reciprocating motion in the horizontal direction. Under complex working conditions where the inclination angle of the suspension rope 3 changes frequently, the guide hole avoids the transmission rod from shaking up and down and left and right in a disordered manner, making the transmission action more precise and reducing the measurement error caused by the irregular movement of the transmission rod, thereby ensuring the accuracy of the inclination angle calculation of the suspension rope 3.

[0040] In this optional embodiment, the transmission assembly 22 composed of the first transmission rod 221, the second transmission rod 222, the third transmission rod 223 and the fourth transmission rod 224 is designed to be equal in length, so that the force can be evenly dispersed during the transmission process, and each transmission rod can work stably and cooperatively to maintain a stable transmission efficiency. In addition, the first fixed body 2101 and the second fixed body 2102 are respectively provided with a first guide through hole and a second guide through hole in the horizontal direction, and the two transmission rods pass through the corresponding guide through holes respectively. The transmission rods are limited by the double guide structure, which can more accurately constrain the movement direction of the transmission rods, so that they strictly follow the horizontal straight line movement, avoid the deviation of the transmission rods, and make the mapping relationship between the transmission action and the actual state of the suspension rope 3 more accurate, so that the follower rod 11 can accurately swing with the suspension rope 3, and improve the accuracy of calculating the inclination angle of the suspension rope 3 through the inclination angle of the follower rod 11.

[0041] Alternatively, if Figure 1 and 2 As shown, the fixing assembly 21 also includes a first connecting rod 2105 and a second connecting rod 2106, one end of the first connecting rod 2105 is connected to the upper end of the first fixing body 2101, the other end of the first connecting rod 2105 is connected to the cross beam 4, one end of the second connecting rod 2106 is connected to the upper end of the second fixing body 2102, the other end of the second connecting rod 2106 is connected to the cross beam 4, and the first connecting rod 2105 and the second connecting rod 2106 have the same length.

[0042] In this optional embodiment, the first fixed body 2101 and the second fixed body 2102 are connected to the cross beam 4 respectively by the first connecting rod 2105 and the second connecting rod 2106 of equal length, so that the first fixed body 2101 and the second fixed body 2102 are located in the same horizontal plane below the cross beam 4, and further the first transmission rod 221 and the second transmission rod 222 passing therethrough maintain stable horizontal movement, so that the horizontal displacement generated by the swing of the suspension rope 3 can be accurately transmitted to the follower rod 11, thereby improving the accuracy of the inclination detection of the suspension rope 3. In addition, through the connection of the first connecting rod 2105 and the second connecting rod 2106, the fixed assembly 21 can be kept at a certain distance from the cross beam 4, thereby reducing the influence of the error in the angle calculation due to the distance relationship, and ensuring the accuracy of the inclination detection of the suspension certificate.

[0043] Alternatively, if Figure 1 and 2As shown, the fixing assembly 21 also includes a third fixing body 2103, a fourth fixing body 2104, a third connecting rod 2107 and a fourth connecting rod 2108, one end of the third connecting rod 2107 is connected to the upper end of the third fixing body 2103, the other end of the third connecting rod 2107 is connected to the cross beam 4, one end of the fourth connecting rod 2108 is connected to the upper end of the fourth fixing body 2104, the other end of the fourth connecting rod 2108 is connected to the cross beam 4, the third fixing body 2103 is provided with a third guide through hole along the horizontal direction, and the first transmission rod 221 passes through The fourth fixed body 2104 is provided with a fourth guide through hole along the horizontal direction, the second transmission rod 222 is passed through the fourth through hole, the first fixed body 2101 and the second fixed body 2102 are provided at one end of the transmission assembly 22 close to the follower rod 11, the third fixed body 2103 and the fourth fixed body 2104 are provided at one end of the transmission assembly 22 away from the follower rod 11, and the first connecting rod 2105, the second connecting rod 2106, the third connecting rod 2107 and the fourth connecting rod 2108 have the same length.

[0044] In this optional embodiment, in order to further improve the stability of the support for the transmission assembly 22, a third fixed body 2103 and a fourth fixed body 2104 can be set on the basis of the first fixed body 2101 and the second fixed body 2102, and the third fixed body 2103 and the fourth fixed body 2104 are respectively connected to the crossbeam 4 through the third connecting rod 2107 and the fourth connecting rod 2108. At the same time, the lengths of the first connecting rod 2105, the second connecting rod 2106, the third connecting rod 2107 and the fourth connecting rod 2108 are made the same, so as to ensure that the four fixed bodies are located in the same horizontal plane, so that the first transmission rod 221 and the second transmission rod 222 that are penetrated and started can always reciprocate in the horizontal direction, and the third guide through hole and the fourth guide through hole horizontally arranged in the third fixed body 2103 and the fourth fixed body 2104 cooperate with the first guide through hole and the second guide through hole, so as to further ensure the stability of the reciprocating motion of the transmission assembly 22. The first fixed body 2101 and the second fixed body 2102 are arranged at one end of the transmission component 22 close to the follower rod 11, and the third fixed body 2103 and the fourth fixed body 2104 are arranged at one end of the transmission component 22 away from the follower rod 11, so that the first fixed body 2101 and the second fixed body 2102, as well as the third fixed body 2103 and the fourth fixed body 2104, are respectively supported and limited at both ends of the transmission component 22, effectively ensuring the stability of the horizontal reciprocating motion of the transmission component 22, so that the follower rod 11 can swing more accurately with the lifting rope 3, so that the corresponding inclination angle of the lifting rope 3 can be accurately calculated according to the inclination angle detected by the inclination sensor 12, and the lifting is performed according to the accurate inclination angle of the lifting rope 3, so that when the inclination angle is abnormal, it can be discovered in time, avoiding the safety hazards caused by excessive inclination, and improving the safety of the lifting effect.

[0045] Alternatively, if Figure 1 and 2 As shown, the fixing assembly 21 also includes a first transmission wheel group 2109 and a second transmission wheel group 2110. The top wall of the first guide through hole is provided with the first transmission wheel group 2109, and the bottom wall of the first guide through hole is provided with the second transmission wheel group 2110. The distance between the first transmission wheel group 2109 and the second transmission wheel group 2110 matches the diameter of the first transmission rod 221.

[0046] Optionally, the fixing assembly 21 also includes a third transmission wheel group 2111 and a fourth transmission wheel group 2112, the top wall of the second guide through hole is provided with the third transmission wheel group 2111, the bottom wall of the second guide through hole is provided with the fourth transmission wheel group 2112, and the distance between the third transmission wheel group 2111 and the fourth transmission wheel group 2112 matches the diameter of the second transmission rod 222.

[0047] Optionally, the fixing assembly 21 further includes a fifth transmission wheel group 2113 and a sixth transmission wheel group 2114, the top wall of the third guide through hole is provided with the fifth transmission wheel group 2113, the bottom wall of the third guide through hole is provided with the sixth transmission wheel group 2114, and the distance between the fifth transmission wheel group 2113 and the sixth transmission wheel group 2114 matches the diameter of the first transmission rod 221.

[0048] Optionally, the fixing assembly 21 also includes a seventh transmission wheel group 2115 and an eighth transmission wheel group 2116, the top wall of the fourth guide through hole is provided with the seventh transmission wheel group 2115, the bottom wall of the fourth guide through hole is provided with the eighth transmission wheel group 2116, and the distance between the seventh transmission wheel group 2115 and the eighth transmission wheel group 2116 matches the diameter of the second transmission rod 222.

[0049] In this optional embodiment, for the first fixed body 2101, the first transmission wheel set 2109 is arranged on the top wall of the first guide through hole, that is, the upper end of the inner wall of the first guide through hole, and the second transmission wheel set 2110 is arranged on the bottom wall of the first guide through hole, that is, the lower end of the inner wall of the first guide through hole, and the distance between the first transmission wheel set 2109 and the second transmission wheel set 2110 matches the diameter of the first transmission rod 221, and then the first transmission wheel set 2109 and the second transmission wheel set 2110 form a tight embrace structure with the first transmission rod 221 passing therethrough, so that the first transmission rod 221 can move horizontally more smoothly through the transmission wheel therein, and the sliding friction between the transmission rod and the through hole is converted into rolling friction through the transmission wheel set, and the friction force is suddenly reduced, so that the transmission rod responds more sensitively and can quickly respond to the inclination change of the suspension rope 3. At the same time, the transmission rod is accurately constrained to move along the horizontal straight line, resisting external interference, so that the transmission rod is stable and does not shake, ensuring the accuracy of the transmission trajectory, and improving the transmission accuracy and service life.

[0050] Similarly, by respectively arranging the third transmission wheel set 2111 and the fourth transmission wheel set 2112 on the top wall and the bottom wall of the second guide through hole, the second transmission rod 222 can more smoothly perform horizontal reciprocating motion in the second fixed body 2102; by respectively arranging the fifth transmission wheel set 2113 and the sixth transmission wheel set 2114 on the top wall and the bottom wall of the inner wall of the third guide through hole, the first transmission rod 221 can smoothly perform horizontal reciprocating motion in the third fixed body 2103; The top wall and the bottom wall of the wall are respectively provided with the seventh transmission wheel group 2115 and the eighth transmission wheel group 2116, so that the second transmission rod 222 can smoothly reciprocate in the fourth fixed body 2104. Through the cooperation of the transmission wheel groups in the first fixed body 2101, the second fixed body 2102, the third fixed body 2103 and the fourth fixed body 2104, the first transmission rod 221 and the second transmission rod 222 can smoothly reciprocate therein, thereby flexibly responding to the inclination changes of the suspension rope 3.

[0051] Alternatively, if Figures 1 to 3 The measuring mechanism 1 further includes a first connecting plate 13, a second connecting plate 14, a first nut 15 and a second nut 16. A first short rod 17 and a second short rod 18 are symmetrically extended from one end of the follower rod 11 along the radial direction of the follower rod 11. The first short rod 17 and the second short rod 18 are respectively provided with threads at one end away from the follower rod 11, and the threads match the first nut 15 and the second nut 16. One end of the first connecting plate 13 and the second connecting plate 14 are respectively connected to the crossbeam 4. A first through hole is provided on the first connecting plate 13. One end of the first short rod 17 is threadedly connected to the first nut 15 after passing through the first through hole. A second through hole is provided on the second connecting plate 14. One end of the second short rod 18 is threadedly connected to the second nut 16 after passing through the second through hole. The position of the first through hole on the first connecting plate 13 matches the position of the second through hole on the second connecting plate 14. The extending directions of the first short rod 17 and the second short rod 18 are perpendicular to the vertical direction and the horizontal direction.

[0052] In this optional embodiment, a first short rod 17 and a second short rod 18 with threads are symmetrically extended from one end of the follower rod 11 along its radial direction, wherein the extension direction of the first short rod 17 and the second short rod 18 are perpendicular to the vertical direction and the horizontal direction, so that the follower rod 11 and the first short rod 17 and the second short rod 18 form a T-shape. One end of the first connecting plate 13 and the second connecting plate 14 are respectively connected to the crossbeam 4, wherein the first connecting plate 13 and the second connecting plate 14 are sequentially arranged along a direction perpendicular to the horizontal direction, so that the follower rod 11 can be moved along the horizontal direction. A first through hole and a second through hole that match each other are respectively provided on the first connecting plate 13 and the second connecting plate 14, and the first short rod 17 is passed through the first through hole and threadedly connected to the first nut 15. The diameter of the first short rod 17 is smaller than the diameter of the first through hole, and the diameter of the second short rod 18 is smaller than the diameter of the second through hole. The second short rod 18 is passed through the second through hole and threadedly connected to the second nut 16. Through the matching first through hole and second through hole, the connected first short rod 17 and the second short rod 18 are perpendicular to the horizontal movement direction of the transmission assembly 22, so that the connected follower rod 11 can swing along the horizontal movement direction of the transmission assembly 22, avoiding the tilt of the follower rod 11 caused by the connecting through hole, ensuring that the inclination angle of the follower rod 11 more accurately reflects the swing of the suspension rope 3, and improving the accuracy of the inclination angle detection of the suspension rope 3.

[0053] like Figure 5 As shown, a method for detecting the inclination angle of a suspension rope provided by an embodiment of the present invention is characterized in that, based on the above-mentioned device for detecting the inclination angle of a suspension rope without a fixed end, the method for detecting the inclination angle of a suspension rope comprises:

[0054] S100, obtaining the current inclination of the follower rod 11 detected by the inclination sensor 12, and a first distance from the contact point of the follower rod 11 and the transmission assembly 22 to the crossbeam 4 on which the suspension rope 3 is installed in a stationary state, and the inclination of the follower rod 11 detected by the inclination sensor 12, and a second distance from the contact point of the suspension rope 3 and the transmission assembly 22 to a rope exit point of the pulley 5, wherein the pulley 5 is used to install the suspension rope 3;

[0055] S200, obtaining the inclination angle of the suspension rope according to the first distance, the second distance and the inclination angle of the follower rod 11 through a preset inclination angle relationship of the suspension rope;

[0056] The inclination relationship of the suspension rope satisfies:

[0057]

[0058] Wherein, α is the inclination angle of the suspension rope, θ is the inclination angle of the follower rod, H1 is the first distance, and H2 is the second distance.

[0059] Specifically, when the lifting system is in a static state when it is not working, the distance from the contact point of the transmission component 22 and the lifting rope 3 to the rope outlet point of the pulley 5 is measured, wherein the pulley 5 is used to install the lifting rope 3, and the distance is determined as the first distance. At the same time, the distance from the contact point of the transmission component 22 and the follower rod 11 to the crossbeam 4 is measured, and the distance is determined as the second distance. When the lifting system is working, the inclination of the follower rod is detected by the inclination sensor 12, and the current inclination of the lifting rope 3 is calculated through the first distance, the second distance and the inclination of the follower rod through the relationship of the rope inclination. Therefore, the swinging state of the lifting rope 3 can be monitored in real time through the rope inclination, so that the swinging of the lifting rope 3 is controlled within a reasonable range, avoiding the safety wind direction caused by excessive swinging, thereby effectively improving the safety of the lifting function.

[0060] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A device for detecting the inclination angle of a suspension rope without a fixed end, characterized in that: The invention is applied to a lifting system using a lifting rope (3) without a fixed end. The lifting rope inclination detection device without a fixed end comprises a measuring mechanism (1) and a transmission mechanism (2). The measuring mechanism (1) comprises a follower rod (11) and a tilt sensor (12). One end of the follower rod (11) is used for rotationally connecting with a crossbeam (4) on which the lifting rope (3) is installed. The other end of the follower rod (11) hangs freely. The tilt sensor (12) is arranged on the follower rod (11) and is used for detecting the tilt of the follower rod (11). The transmission mechanism (2) The structure (2) comprises a fixing component (21) and a transmission component (22); the upper end of the fixing component (21) is used for fixing connection with a crossbeam (4) for mounting a suspension rope (3), and is arranged between the follower rod (11) and the suspension rope (3); a guide through hole is opened in the fixing component (21) along the horizontal direction; after the transmission component (22) is inserted into the guide through hole, one end of the transmission component (22) contacts the suspension rope (3), and the other end of the transmission component (22) contacts the follower rod (11).

2. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 1, characterized in that: The transmission assembly (22) comprises a first transmission rod (221), a second transmission rod (222), a third transmission rod (223) and a fourth transmission rod (224); the first end of the first transmission rod (221) is connected to the first end of the third transmission rod (223); the second end of the first transmission rod (221) is connected to the first end of the fourth transmission rod (224); the first end of the second transmission rod (222) is connected to the second end of the third transmission rod (223); the second end of the second transmission rod (222) is connected to the second end of the fourth transmission rod (224); the first transmission rod (221) and the second transmission rod (222) are of the same length; the fixing assembly (21 ) comprises a first fixed body (2101) and a second fixed body (2102), the upper ends of the first fixed body (2101) and the second fixed body (2102) are respectively connected to the cross beam (4), the first fixed body (2101) is provided with a first guide through hole along the horizontal direction, the second fixed body (2102) is provided with a second guide through hole along the horizontal direction, the first transmission rod (221) is passed through the first guide through hole, the second transmission rod (222) is passed through the second guide through hole, the rod body of the third transmission rod (223) is in contact with the suspension rope (3), and the rod body of the fourth transmission rod (224) is in contact with the follower rod (11).

3. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 2, characterized in that: The fixing assembly (21) also includes a first connecting rod (2105) and a second connecting rod (2106), one end of the first connecting rod (2105) is connected to the upper end of the first fixing body (2101), the other end of the first connecting rod (2105) is connected to the cross beam (4), one end of the second connecting rod (2106) is connected to the upper end of the second fixing body (2102), the other end of the second connecting rod (2106) is connected to the cross beam (4), and the first connecting rod (2105) and the second connecting rod (2106) are the same length.

4. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 3, characterized in that: The fixing assembly (21) further comprises a third fixing body (2103), a fourth fixing body (2104), a third connecting rod (2107) and a fourth connecting rod (2108), one end of the third connecting rod (2107) being connected to the upper end of the third fixing body (2103), the other end of the third connecting rod (2107) being connected to the cross beam (4), one end of the fourth connecting rod (2108) being connected to the upper end of the fourth fixing body (2104), the other end of the fourth connecting rod (2108) being connected to the cross beam (4), the third fixing body (2103) being provided with a third guide through hole along the horizontal direction, the first transmission rod (221) being provided with a third guide through hole In the third guide through hole, the fourth fixed body (2104) is provided with a fourth guide through hole along the horizontal direction, the second transmission rod (222) is passed through the fourth through hole, the first fixed body (2101) and the second fixed body (2102) are arranged at one end of the transmission component (22) close to the follower rod (11), the third fixed body (2103) and the fourth fixed body (2104) are arranged at one end of the transmission component (22) away from the follower rod (11), and the first connecting rod (2105), the second connecting rod (2106), the third connecting rod (2107) and the fourth connecting rod (2108) are of the same length.

5. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 4, characterized in that: The fixing assembly (21) further comprises a first transmission wheel set (2109) and a second transmission wheel set (2110); the first transmission wheel set (2109) is disposed on the top wall of the first guide through hole, and the second transmission wheel set (2110) is disposed on the bottom wall of the first guide through hole; the distance between the first transmission wheel set (2109) and the second transmission wheel set (2110) matches the diameter of the first transmission rod (221).

6. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 4, characterized in that: The fixing assembly (21) further comprises a third transmission wheel set (2111) and a fourth transmission wheel set (2112); the third transmission wheel set (2111) is arranged on the top wall of the second guide through hole, and the fourth transmission wheel set (2112) is arranged on the bottom wall of the second guide through hole; the distance between the third transmission wheel set (2111) and the fourth transmission wheel set (2112) matches the diameter of the second transmission rod (222).

7. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 4, characterized in that: The fixing assembly (21) further comprises a fifth transmission wheel set (2113) and a sixth transmission wheel set (2114); the fifth transmission wheel set (2113) is arranged on the top wall of the third guide through hole, and the sixth transmission wheel set (2114) is arranged on the bottom wall of the third guide through hole; the distance between the fifth transmission wheel set (2113) and the sixth transmission wheel set (2114) matches the diameter of the first transmission rod (221).

8. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 4, characterized in that: The fixing assembly (21) further comprises a seventh transmission wheel set (2115) and an eighth transmission wheel set (2116); the seventh transmission wheel set (2115) is arranged on the top wall of the fourth guide through hole, and the eighth transmission wheel set (2116) is arranged on the bottom wall of the fourth guide through hole; the distance between the seventh transmission wheel set (2115) and the eighth transmission wheel set (2116) matches the diameter of the second transmission rod (222).

9. The device for detecting the inclination angle of a suspension rope without a fixed end according to claim 1, characterized in that: The measuring mechanism (1) further comprises a first connecting plate (13), a second connecting plate (14), a first nut (15) and a second nut (16); one end of the follower rod (11) symmetrically extends a first short rod (17) and a second short rod (18) along the radial direction of the follower rod (11); one end of the first short rod (17) and the second short rod (18) away from the follower rod (11) are respectively provided with threads, the threads matching the first nut (15) and the second nut (16); one end of the first connecting plate (13) and the second connecting plate (14) are respectively connected to the crossbeam (4 ), the first connecting plate (13) is provided with a first through hole, one end of the first short rod (17) passes through the first through hole and is threadedly connected to the first nut (15), the second connecting plate (14) is provided with a second through hole, one end of the second short rod (18) passes through the second through hole and is threadedly connected to the second nut (16), the position of the first through hole on the first connecting plate (13) matches the position of the second through hole on the second connecting plate (14), and the extension directions of the first short rod (17) and the second short rod (18) are perpendicular to the vertical direction and the horizontal direction.

10. A method for detecting the inclination angle of a suspension rope, characterized in that: Based on the device for detecting the inclination angle of a suspension rope without a fixed end according to any one of claims 1 to 9, the method for detecting the inclination angle of a suspension rope comprises: Acquire a first distance from a contact point between a follower rod (11) and a transmission assembly (22) in a stationary state to a crossbeam (4) on which a sling rope (3) is installed, and an inclination angle of the follower rod detected by an inclination sensor (12), and a second distance from a contact point between the sling rope (3) and the transmission assembly (22) to a rope outlet point of a pulley (5), wherein the pulley (5) is used to install the sling rope (3); According to the first distance, the second distance and the follower rod inclination angle, the inclination angle of the suspension rope is obtained by using a preset inclination angle relationship of the suspension rope; The inclination relationship of the suspension rope satisfies: Wherein, α is the inclination angle of the suspension rope, θ is the inclination angle of the follower rod, H1 is the first distance, and H2 is the second distance.

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