A variable-pitch structure for steel wire ropes of an overhead belt ropeway

Abstract

The present invention discloses a variable pitch structure for a steel wire rope system of an overhead belt ropeway, comprising a first steel cable, a second steel cable, a telescopic assembly, and a connecting assembly, wherein the first steel cable and the second steel cable are arranged in parallel; the number of the connecting assemblies is two, and the connecting assembly comprises a first connecting portion, a second connecting portion, a third connecting portion, and a fourth connecting portion which are sequentially connected by a rotating shaft, and the rotating shaft comprises a first axis, a second axis, and a third axis. The present invention adopts a variable pitch structure erected between two steel cables to change and adjust the spacing between the two steel cables. The structure is simple, and the variable pitch structure is fixedly connected to one of the steel cables and moves under the drive of the steel cable, and can then be moved to any position on the ropeway as required to achieve variable pitch work at any position. Compared with the existing method of setting a bracket for variable pitch at a fixed point, the method adopted by the present invention is more convenient and more applicable.

Description

Technical Field

[0001] The invention belongs to the field of transport ropeways and relates to a variable-pitch structure of a steel wire rope of an overhead belt ropeway. Background Art

[0002] Aerial ropeways are widely used in outdoor long-distance manned transportation and other work. In order to meet various transportation needs, a ropeway will be equipped with multiple steel ropes, each of which is mounted with different equipment to achieve transportation with different functions.

[0003] In actual use, there is usually a need to change the pitch between each wire rope, on the one hand to adapt to special terrain needs, and on the other hand to achieve interaction between different equipment on different wire ropes; the existing variable pitch structures are mostly fixed point settings and have complex structures. They cannot quickly change the pitch at any position on the cableway according to actual needs, and have a small scope of application. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a variable pitch structure for a steel wire rope of an overhead belt ropeway.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A variable pitch structure of a steel wire rope system for an overhead belt ropeway comprises a first steel cable, a second steel cable, a telescopic assembly, and a connecting assembly, wherein the first steel cable is arranged in parallel with the second steel cable; there are two connecting assemblies, and the connecting assembly comprises a first connecting portion, a second connecting portion, a third connecting portion, and a fourth connecting portion which are sequentially connected by a rotating shaft, and the rotating shaft comprises a first axis, a second axis, and a third axis, and the axes of the first axis, the second axis, and the third axis are arranged in a three-dimensional direction, the two first connecting portions are connected to the two ends of the telescopic direction of the telescopic assembly, and the two fourth connecting portions are respectively connected to the first steel cable and the second steel cable.

[0007] Furthermore, the telescopic assembly includes a main rod and a secondary rod inserted into the main rod, the main rod is connected to one of the first connecting parts, and the secondary rod is connected to the other first connecting part; it also includes a transmission structure for driving the secondary rod to telescope relative to the main rod.

[0008] Furthermore, the transmission structure includes a screw and a sleeve, the sleeve is fixedly connected to the main rod, the screw is connected to the auxiliary rod and can rotate relative to the auxiliary rod, the screw is threadedly connected to the sleeve, and the auxiliary rod is provided with a driving structure for driving the screw to rotate.

[0009] Furthermore, the driving structure includes a sprocket, a chain and a motor, the sprocket includes a driven sprocket and a driving sprocket, the driving sprocket is connected to the motor, the driven sprocket is connected to the screw, the chain is sleeved on the sprocket, and the motor is installed on the sub-rod.

[0010] Furthermore, it also includes a reset structure, which includes a bidirectional torsion spring sleeved on the third shaft, and two ends of the bidirectional torsion spring are respectively connected to the third connecting part and the fourth connecting part.

[0011] Furthermore, one of the fourth connecting parts is provided with a pulley assembly, the first steel cable is passed through the pulley assembly, and the pulley assembly can move along the first steel cable; the other fourth connecting part is fixedly connected to the second steel cable.

[0012] Furthermore, a washer is fixed on the lead screw, and the washer is passed through the auxiliary rod and can rotate relative to the auxiliary rod along the axial direction of the lead screw.

[0013] In summary, the present invention is beneficial in that:

[0014] 1) The present invention adopts a variable pitch structure erected between two steel cables to change and adjust the distance between the two steel cables. The structure is simple, and the variable pitch structure is fixedly connected to one of the steel cables. It moves under the drive of the steel cable, and can be moved to any position on the cableway as needed to achieve variable pitch work at any position. Compared with the existing fixed point setting bracket variable pitch, the method adopted by the present invention is more convenient and more applicable.

[0015] 2) The pitch-variable structure provided in the present invention uses the main rod and auxiliary rod as telescopic support, and the sleeve screw as telescopic drive. The pitch-variable drive structure is simple, has high transmission efficiency, has good support, and can effectively achieve pitch variation.

[0016] 3) Both ends of the telescopic assembly of the present invention are connected to the steel cables by connecting assemblies. The connecting assemblies have three-dimensional rotatable mobility. Therefore, when the two steel cables are not parallel, the angle and direction can be adjusted through the connecting assemblies to enable the telescopic assembly to be maintained in a suitable position, avoid structural damage, and ensure effective telescopic function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 A is an enlarged schematic diagram.

[0019] Figure 3 Schematic diagram of the drive structure.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure in another state.

[0021] Markings in the figure: 11, first steel cable; 111, pulley assembly; 12, second steel cable; 121, rope grip; 2, connecting assembly; 21, first connecting part; 22, second connecting part; 23, third connecting part; 24, fourth connecting part; 21', first shaft; 22', second shaft; 23', third shaft; 31, main rod; 32, auxiliary rod; 33, sleeve; 34, screw; 35, driving structure; 351, driving sprocket; 352, driven sprocket; 353, chain. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0023] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be arbitrarily changed, and the component layout may also be more complex.

[0024] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the perpendicular relationship may actually be an approximately perpendicular relationship.

[0026] like Figure 1 、 2As shown, a variable pitch structure of an overhead belt ropeway wire rope system includes a second steel cable 12 arranged side by side with a first steel cable 11, and the variable pitch structure is spanned between the first steel cable 11 and the second steel cable 12. The variable pitch structure includes a telescopic component and a connecting component 2. The connecting component 2 connects the telescopic component with the first steel cable 11 / the second steel cable 12. The telescopic component realizes the variable pitch function by telescoping to shorten or lengthen the distance between the first steel cable 11 and the second steel cable 12.

[0027] Specifically, the telescopic assembly includes a main rod 31 and a secondary rod 32. The main rod 31 is inserted into the external side of the secondary rod 32. The main rod 31 and the secondary rod 32 can be relatively telescopic, and the outer wall of the secondary rod 32 fits the inner wall of the main rod 31, so that the structural strength of the main rod 31 and the secondary rod 32 is guaranteed.

[0028] For the telescopic action of the main rod 31 and the auxiliary rod 32, a sleeve 33 and a lead screw 34 are provided in this embodiment to drive them. The sleeve 33 is fixedly connected to the main rod 31, and the lead screw 34 is connected to the auxiliary rod 32. The lead screw 34 is threadedly connected to the sleeve 33, and the axes of the lead screw 34 and the sleeve 33 are parallel to the telescopic direction of the main rod 31 and the auxiliary rod 32. By rotating the lead screw 34, it is caused to move axially in the sleeve 33, thereby driving the auxiliary rod 32 to perform a telescopic action relative to the main rod 31.

[0029] For the rotation drive of the lead screw 34, a washer is fixedly provided on the lead screw 34, and the washer is passed through the sub-rod 32. The washer is against the sub-rod 32 in the axial front-to-back direction, so that the lead screw 34 can rotate around the axis, but cannot move axially relative to the sub-rod 32, and the rotation of the lead screw 34 is driven by setting a driving structure 35 on the sub-rod 32.

[0030] Reference Figure 3 The driving structure 35 includes a motor fixed on the auxiliary rod 32, a driving sprocket 351 is provided on the output shaft of the motor, and a driven sprocket 352 is provided at the end of the screw 34. A chain 353 is jointly sleeved on the driving sprocket 351 and the driven sprocket 352. The motor drives the driving sprocket 351 to rotate, and then drives the driven sprocket 352 to rotate through the chain 353, and then drives the screw 34 to rotate.

[0031] The main rod 31 and the auxiliary rod 32 provide support in the telescopic direction, the sleeve 33 and the lead screw 34 provide telescopic drive, and the telescopic action of the telescopic assembly can act on the first steel cable 11 and the second steel cable 12 through the connecting assembly 2, thereby pulling the two steel cables closer or farther apart to achieve a variable distance effect.

[0032] Since the first steel cable 11 and the second steel cable 12 are both very long and their load-bearing conditions are different, the first steel cable 11 and the second steel cable 12 cannot be laid out in parallel and on the same horizontal plane. There may be a situation where one is high and the other is low, or the two steel cables have a certain angle in the vertical direction, or the two connecting components 2 are one in front and one behind. Therefore, the connecting component 2 needs to have a sufficient range of motion.

[0033] In this embodiment, there are two connecting components 2, and each connecting component 2 includes a first connecting part 21, a second connecting part 22, a third connecting part 23 and a fourth connecting part 24 connected in sequence. The first connecting part 21 in one of the connecting components 2 is connected to the main rod 31, and the fourth connecting part 24 is connected to the first steel cable 11; the first connecting part 21 in another connecting component 2 is connected to the secondary rod 32, and the fourth connecting part 24 is connected to the second steel cable 12.

[0034] The first connecting portion 21 and the second connecting portion 22 are rotationally connected via a first shaft 21', the second connecting portion 22 and the third connecting portion 23 are rotationally connected via a second shaft 22', and the third connecting portion 23 and the fourth connecting portion 24 are rotationally connected via a third shaft 23'. The first shaft 21', the second shaft 22' and the third shaft 23' are respectively arranged along three-dimensional directions, that is, the axes of the three shafts coincide with the x, y and z directions in three-dimensional space.

[0035] Specifically, taking the connecting component 2 connected to the second steel cable 12 as an example, the axis of the third shaft 23' is located in the horizontal direction and is perpendicular to the axis of the second steel cable 12; the axis of the second shaft 22' is vertically upward and perpendicular to the axis of the second steel cable 12; the axis of the first shaft 21' is located in the horizontal direction and is parallel to the axis of the second steel cable 12.

[0036] When the first steel cable 11 and the second steel cable 12 are one high and one low, the rotation of the first shaft 21' provides adjustment; when the first steel cable 11 and the second steel cable 12 have a certain angle in the vertical direction, the rotation of the third shaft 23' provides adjustment; Figure 4 When the two connecting components 2 are arranged one in front of the other, the rotation of the second shaft 22' provides adjustment.

[0037] Among them, the second steel cable 12 adopts an independent drive and operates independently of the first steel cable 11. In the connecting component 2 used to connect the second steel cable 12, the fourth connecting part 24 and the second steel cable 12 are fixedly connected, specifically fixed by a rope grip 121; in the connecting component 2 used to connect the first steel cable 11, the fourth connecting part 24 and the first steel cable 11 are movably connected, that is, a pulley assembly 111 is provided on the fourth connecting part 24, and the first steel cable 11 is passed through the pulley assembly 111 and cooperates with the pulley, so that the pulley assembly 111 can move along the first steel cable 11.

[0038] The pulley assembly 111 is provided with a brake structure for locking the relative position of the pulley and the first steel cable 11 so that the pulley assembly 111 and the first steel cable 11 are fixed. A driving device is also provided for driving the pulley to rotate so that the pulley assembly 111 can travel on the first steel cable 11.

[0039] In the working state, the movement of the second steel cable 12 drives the connecting component 2 on this side to move, thereby correspondingly generating traction on the telescopic component, the connecting component 2 on the other side and the pulley assembly 111, and the brake structure of the pulley assembly 111 does not work, thereby causing the entire variable distance structure to move along the first steel cable 11 to move to the corresponding position.

[0040] It should be added that the direction of the rotation axis of the third shaft 23' makes the telescopic assembly likely to rotate downward under gravity. Therefore, a reset structure is also provided in this embodiment to prevent excessive rotation. The reset structure includes a bidirectional torsion spring sleeved on the third shaft 23', and the two ends of the bidirectional torsion spring are respectively connected to the third connecting portion 23 and the fourth connecting portion 24. In the natural state, the third connecting portion 23 and the fourth connecting portion 24 maintain Figure 2 In the position shown, the telescopic structure is located at the top. When the third connecting part 23 rotates relative to the fourth connecting part 24, the bidirectional torsion spring deforms and accumulates elastic potential energy, so that the third connecting part 23 and the fourth connecting part 24 have the ability to return to a natural state.

[0041] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

Claims

1. A variable pitch structure for a steel wire rope of an overhead belt ropeway, characterized in that: The invention comprises a first steel cable (11), a second steel cable (12), a telescopic assembly, and a connecting assembly (2), wherein the first steel cable (11) and the second steel cable (12) are arranged in parallel; the number of the connecting assemblies (2) is two, and the connecting assembly (2) comprises a first connecting portion (21), a second connecting portion (22), a third connecting portion (23), and a fourth connecting portion (24) connected in sequence by a rotating shaft, wherein the rotating shaft comprises a first shaft (21'), a second shaft (22'), and a third shaft (23'), and the axes of the first shaft (21'), the second shaft (22'), and the third shaft (23') are arranged in a three-dimensional direction, the two first connecting portions (21) are connected to the two ends of the telescopic assembly in the telescopic direction, and the two fourth connecting portions (24) are respectively connected to the first steel cable (11) and the second steel cable (12).

2. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 1, characterized in that: The telescopic assembly comprises a main rod (31) and a secondary rod (32) sleeved inside the main rod (31), wherein the main rod (31) is connected to one of the first connecting parts (21), and the secondary rod (32) is connected to the other first connecting part (21); and further comprises a transmission structure for driving the secondary rod (32) to telescope relative to the main rod (31).

3. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 2, characterized in that: The transmission structure comprises a lead screw (34) and a sleeve (33), wherein the sleeve (33) is fixedly connected to the main rod (31), the lead screw (34) is connected to the auxiliary rod (32) and can rotate relative to the auxiliary rod (32), the lead screw (34) is threadedly connected to the sleeve (33), and the auxiliary rod (32) is provided with a driving structure (35) for driving the lead screw (34) to rotate.

4. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 3, characterized in that: The driving structure (35) includes a sprocket, a chain (353) and a motor, the sprocket includes a driven sprocket (352) and a driving sprocket (351), the driving sprocket (351) is connected to the motor, the driven sprocket (352) is connected to the lead screw (34), the chain (353) is sleeved on the sprocket, and the motor is installed on the auxiliary rod (32).

5. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 1, characterized in that: It also includes a reset structure, which includes a bidirectional torsion spring sleeved on the third shaft (23'), with two ends of the bidirectional torsion spring respectively connected to the third connecting portion (23) and the fourth connecting portion (24).

6. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 1, characterized in that: A pulley assembly (111) is provided on one of the fourth connecting parts (24), the first steel cable (11) is passed through the pulley assembly (111), and the pulley assembly (111) can move along the first steel cable (11); the other fourth connecting part (24) is fixedly connected to the second steel cable (12).

7. The variable pitch structure of the steel wire rope of an overhead belt ropeway according to claim 3, characterized in that: A washer is fixedly provided on the lead screw (34), and the washer is passed through the auxiliary rod (32) and can rotate relative to the auxiliary rod (32) along the axial direction of the lead screw (34).

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