A heavy cable conveying apparatus

Abstract

This invention belongs to the field of cable conveying technology, specifically referring to a heavy-duty cable conveying device, including a sliding self-pre-tightening assembly, a pre-tightening guide assembly, a track assembly, a thick cable, and a frame. The sliding self-pre-tightening assembly is located within the frame, the pre-tightening guide assembly is located within the sliding self-pre-tightening assembly, and the track assembly is located within the frame. The core of this invention is the cooperation between symmetrical inclined grooves and wedges; the upper and lower wedges are respectively connected to the track assembly and can slide along the inclined grooves. When there is a relative movement tendency between the thick cable and the drive track, the wedges are dragged to one end of the guide groove, converting the axial displacement into an increase in normal clamping force, achieving the technical effect of "the greater the resistance, the tighter the clamping".

Description

Technical Field

[0001] This invention belongs to the field of cable conveying technology, specifically referring to a heavy-duty cable conveying device. Background Technology

[0002] Existing heavy-duty cable conveying equipment mostly uses springs or hydraulic pressure to apply a constant clamping force, which cannot adaptively adjust to the conveying resistance. To prevent cable slippage in vertical sections or sharp bends, a large clamping force is often preset, causing excessive compression of the cable in low-resistance sections, damaging the insulation and sheath; if the clamping force is reduced, the anti-slip capability is insufficient. At the same time, independent clamping of the upper and lower tracks makes it difficult to maintain alignment, easily leading to off-center loading and stress concentration. The aforementioned contradiction between "anti-slip and protection" and the alignment problem have long been difficult to resolve simultaneously. Summary of the Invention

[0003] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a heavy-duty cable conveying device. Its core component is the cooperation of a symmetrical inclined chute and wedges. The upper and lower wedges are respectively connected to the track assembly and can slide along the inclined chute. When there is a relative movement tendency between the thick cable and the drive track, the wedges are dragged to one end of the guide chute, converting the axial displacement into an increase in normal clamping force, achieving the technical effect of "the greater the resistance, the tighter the clamping." The guide sleeve and guide rod force the upper and lower wedges to remain aligned horizontally, preventing misalignment.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a heavy-duty cable conveying device, including a sliding self-pre-tightening assembly, a pre-tightening guide assembly, a crawler assembly, a thick cable and a frame. The sliding self-pre-tightening assembly is disposed in the frame, the pre-tightening guide assembly is disposed in the sliding self-pre-tightening assembly, and the crawler assembly is located in the frame. The pre-tensioning guide assembly is symmetrically arranged on both sides of the track assembly, and the thick cable is arranged between the track assemblies.

[0005] Furthermore, the sliding self-pre-tightening assembly includes a side plate and a wedge block. The side plate is fixedly connected between the frames and is symmetrically arranged. The side plate is symmetrically provided with inclined sliding grooves, and the wedge block is engaged and slidably disposed in the inclined sliding grooves.

[0006] As a further preferred embodiment of the present invention, the opening direction of the inclined groove is the same as the movement direction of the thick cable.

[0007] Preferably, the sliding self-pre-tightening assembly further includes a side support rod, which is fixedly connected to the pre-tightening guide assembly, the wedge block is fixedly connected to the side support rod, and a suspension platform is provided on the outer side of the side support rod.

[0008] Furthermore, the pre-tensioning guide assembly includes a pre-tensioning spring, with both ends of the pre-tensioning spring fixed to the suspension platform. Under the tension of the pre-tensioning spring, the side support rods tend to move closer to each other.

[0009] Preferably, the pre-tensioning guide assembly further includes a guide sleeve and a guide rod, the guide sleeve and the guide rod being fixedly connected to the same side of the suspension platform, the guide rod being engaged and slidably disposed in the guide sleeve, and under the guidance of the guide sleeve and the guide rod, the two sets of track assemblies remain overlapping in the longitudinal direction.

[0010] Furthermore, the track assembly includes a track bracket and a track roller shaft, the side support rod is fixed to both sides of the track bracket, the track bracket has notches at both ends, and the track roller shaft is disposed in the notches.

[0011] Preferably, the track assembly further includes a drive track, which is in rolling contact with a track roller and can drive the drive track to move through the track roller.

[0012] Furthermore, the thick cable is located between two sets of drive tracks, and the drive tracks abut against the upper and lower surfaces of the thick cable under the tension of the pre-tension spring.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: (1) Bidirectional self-increasing force, conveying and anti-slip integrated: No matter whether the cable encounters obstruction in the forward direction or slips in the reverse direction, the mechanism can convert the axial sliding trend into the normal clamping force increment without delay, automatically match the demand, and completely solve the inherent contradiction of fixed pressure equipment.

[0014] (2) Flexible force limiting to prevent overpressure: Through the design of the inclined slide, the clamping force automatically saturates after reaching the safety limit, which physically avoids cable crushing caused by rigid self-locking, and has extremely strong protection.

[0015] (3) Adaptive centering: The synchronous linkage mechanism forces the upper and lower clamping components to open and close symmetrically, so that the cable is always centered and is not affected by diameter tolerance or local fluctuations, thus eliminating off-center load.

[0016] (4) High reliability, purely mechanical implementation: all force amplification, force limiting and centering functions are composed of guide plate, wedge block, tension spring and connecting rod, without any electro-hydraulic control components, resistant to harsh working conditions and easy to maintain. Attached Figure Description

[0017] Figure 1 This is a perspective view of a heavy-duty cable conveying device proposed in this invention; Figure 2 This is a front view of a heavy-duty cable conveying device proposed in this invention; Figure 3 This is a left view of a heavy-duty cable conveying device according to the present invention; Figure 4 for Figure 2 A cross-sectional view along the cutting line AA; Figure 5 for Figure 3 A cross-sectional view along the cutting line BB; Figure 6 This is an exploded structural diagram of a heavy-duty cable conveying device proposed in this invention; Figure 7 for Figure 3 A magnified view of a section at point I.

[0018] Among them, 1. Sliding self-pre-tightening assembly, 2. Pre-tightening guide assembly, 3. Track assembly, 4. Thick cable, 5. Frame, 11. Side plate, 12. Wedge block, 13. Side support rod, 21. Pre-tightening spring, 22. Guide sleeve, 23. Guide rod, 31. Track bracket, 32. Track roller, 33. Drive track, 111. Inclined slide, 131. Suspension platform, 311. Notch.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1-7 As shown, the present invention proposes a heavy-duty cable conveying device, including a sliding self-pre-tightening assembly 1, a pre-tightening guide assembly 2, a crawler assembly 3, a thick cable 4, and a frame 5. The sliding self-pre-tightening assembly 1 is disposed in the frame 5, the pre-tightening guide assembly 2 is disposed in the sliding self-pre-tightening assembly 1, and the crawler assembly 3 is located in the frame 5. The pre-tensioning guide assembly 2 is symmetrically arranged on both sides of the track assembly 3, and the thick cable 4 is arranged between the track assemblies 3.

[0023] The sliding self-pre-tightening assembly 1 includes a side plate 11 and a wedge block 12. The side plate 11 is fixedly connected to the frame 5. The side plates 11 are symmetrically arranged. The side plates 11 are symmetrically provided with inclined slide grooves 111. The wedge block 12 is engaged and slidably disposed in the inclined slide grooves 111.

[0024] The opening direction of the inclined chute 111 is the same as the movement direction of the thick cable 4.

[0025] The sliding self-pre-tightening assembly 1 also includes a side support rod 13, which is fixedly connected to the pre-tightening guide assembly 2. The wedge block 12 is fixedly connected to the side support rod 13, and a suspension platform 131 is provided on the outer side of the side support rod 13.

[0026] The pre-tensioning guide assembly 2 includes a pre-tensioning spring 21, with both ends of the pre-tensioning spring 21 fixed to the suspension platform 131. Under the tension of the pre-tensioning spring 21, the side support rods 13 tend to move closer to each other.

[0027] The pre-tensioning guide assembly 2 also includes a guide sleeve 22 and a guide rod 23. The guide sleeve 22 and the guide rod 23 are respectively fixed to the suspension platform 131 on the same side. The guide rod 23 is engaged and slidably disposed in the guide sleeve 22. Under the guidance of the guide sleeve 22 and the guide rod 23, the two sets of track assemblies 3 remain overlapping in the longitudinal direction.

[0028] The track assembly 3 includes a track bracket 31 and a track roller 32. The side support rod 13 is fixed to both sides of the track bracket 31. The track bracket 31 has notches 311 at both ends, and the track roller 32 is disposed in the notches 311.

[0029] Track assembly 3 also includes drive track 33, which is in rolling contact with track roller 32, and the track roller 32 can drive the drive track 33 to move.

[0030] The thick cable 4 is located between the two sets of drive tracks 33, and the drive tracks 33 abut against the upper and lower surfaces of the thick cable 4 under the tension of the pre-tension spring 21.

[0031] In actual use, in the initial state, the wedge blocks 12 approach each other under the elastic force of the pre-tightening spring 21 and are located at the closest end (the converging end of the inclined slide groove 111). The user needs to overcome the elasticity of the pre-tension spring 21 and insert the thick cable 4 between the drive tracks 33. At this time, the drive tracks 33 on the upper and lower sides respectively abut against the upper and lower surfaces of the thick cable 4. The drive tracks 33 will have slight deformation under the pressure to achieve surface contact between the drive tracks 33 and the thick cable 4.

[0032] Then, the track assembly 3 is activated, and the track roller 32 is driven to rotate by the motor. The track roller 32 drives the track 33 to move, thereby realizing the unidirectional conveying of the thick cable 4. During normal conveying, the spacing of the suspension platform 131 will remain stable in an equilibrium state.

[0033] When the motion resistance of the thick cable 4 increases, the reaction force from the thick cable 4 on the drive track 33 will also increase. Under the action of this reaction force, the track assembly 3 moves toward the rear of the thick cable 4 in the direction of travel. When the wedge 12 slides along the inclined slide 111 toward the rear of the conveying direction, the distance between the two wedges 12 will decrease due to the contraction of the inclined slide 111, thereby increasing the clamping force and wrapping area between the drive track 33 and the thick cable 4, thus increasing the friction during conveying. The conveying thrust of the track assembly 3 on the thick cable 4 changes automatically with the change of the travel resistance of the thick cable 4, so as to minimize the pressure and damage to the thick cable 4 while maintaining stable conveying.

[0034] The guide sleeve 22 and guide rod 23 ensure that the two sets of wedges 12 are not misaligned in the horizontal direction. The guide groove 111 allows the two longitudinally overlapping wedges 12 to move synchronously closer to or further away from the center horizontal plane of the thick cable 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A heavy cable conveying apparatus, characterized by: The utility model provides a self-preloading sliding track assembly, which comprises a self-preloading sliding assembly (1), a preloading guide assembly (2), a track assembly (3), a thick cable (4) and a rack (5), the self-preloading sliding assembly (1) is arranged in the rack (5), the preloading guide assembly (2) is arranged in the self-preloading sliding assembly (1), and the track assembly (3) is arranged in the rack (5). The preloading guide assembly (2) is symmetrically arranged on both sides of the track assembly (3), and the thick cable (4) is arranged between the track assemblies (3).

2. A heavy cable delivery apparatus according to claim 1, wherein: The self-preloading sliding assembly (1) comprises side plates (11) and wedge blocks (12), the side plates (11) are fixedly connected between the rack (5), the side plates (11) are symmetrically arranged, and the side plates (11) are symmetrically provided with inclined sliding grooves (111); the wedge blocks (12) are slidably arranged in the inclined sliding grooves (111).

3. A heavy cable delivery apparatus according to claim 2, wherein: The opening direction of the inclined sliding groove (111) is the same as the movement direction of the thick cable (4).

4. A heavy cable delivery apparatus according to claim 3, wherein: The self-preloading sliding assembly (1) further comprises side support rods (13), the side support rods (13) are fixedly connected to the preloading guide assembly (2), the wedge blocks (12) are fixedly connected to the side support rods (13), and the outer sides of the side support rods (13) are provided with suspension platforms (131).

5. A heavy cable handling apparatus according to claim 4, wherein: The preloading guide assembly (2) comprises preloading springs (21), the two ends of the preloading springs (21) are fixedly connected to the suspension platforms (131) respectively, and the side support rods (13) have a tendency of moving close to each other under the tension of the preloading springs (21).

6. A heavy cable delivery apparatus according to claim 5, wherein: The preloading guide assembly (2) further comprises guide sleeves (22) and guide rods (23), the guide sleeves (22) and the guide rods (23) are fixedly connected to the suspension platforms (131) on the same side respectively, the guide rods (23) are slidably arranged in the guide sleeves (22), and the two track assemblies (3) keep coinciding in the longitudinal direction under the guidance of the guide sleeves (22) and the guide rods (23).

7. A heavy cable delivery apparatus according to claim 6, wherein: The track assembly (3) comprises track supports (31) and track roller shafts (32), the side support rods (13) are fixedly connected to the two sides of the track supports (31), the two ends of the track supports (31) are provided with notch portions (311), and the track roller shafts (32) are arranged in the notch portions (311).

8. A heavy cable delivery apparatus according to claim 7, wherein: The track assembly (3) further comprises driving tracks (33), the driving tracks (33) and the track roller shafts (32) are in rolling contact, and the driving tracks (33) can be driven to move by the track roller shafts (32).

9. A heavy cable delivery apparatus according to claim 8, wherein: The thick cable (4) is located between the two driving tracks (33), and the driving tracks (33) abut against the upper and lower surfaces of the thick cable (4) under the tension of the preloading springs (21).

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