Arm support steel wire rope tensioning device and telescopic belt conveying vehicle

Abstract

The utility model relates to a kind of boom steel wire rope tensioning device and telescopic belt conveyor.The boom steel wire rope tensioning device includes support structure, tensioning component, adjusting driving part and wedge joint, when the slack condition of steel wire rope appears, adjusting seat is driven by adjusting driving part to drive tensioning wheel to move along the direction of far from wedge joint, to tighten steel wire rope, avoid the normal telescopic boom of affecting telescopic boom due to steel wire rope slack, reduce the probability of easy fracture of steel wire rope when stressed;When the tension of steel wire rope is too large, adjusting seat is driven by adjusting driving part to drive tensioning wheel to slide along the direction of towards wedge joint, to adjust loose steel wire rope, avoid the fracture of steel wire rope and other conditions, avoid telescopic arm cannot normally extend and retract, steel wire rope fracture and other problems due to steel wire rope slack or tension is too large, improve the operation stability and use safety of telescopic belt conveyor, and make the service life of telescopic belt conveyor longer.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor equipment technology, and in particular to a boom wire rope tensioning device and a telescopic belt conveyor vehicle. Background Technology

[0002] Telescopic belt conveyors can transport large volumes of concrete and various bulk materials, making them ideal for large-volume concrete transport at construction sites such as concrete foundations, high-speed railways, highways, ditches, airports, and docks. A crucial component of a telescopic belt conveyor is the telescopic boom, which houses the conveyor mechanism. The extension and retraction of the boom are achieved by a winch rotating in either the forward or reverse direction, using steel cables to pull the various support sections of the boom. However, under prolonged tension, the steel cables inevitably slack, affecting the normal extension and retraction of the boom. Furthermore, chronically slack steel cables are prone to breakage under stress, compromising the safety of the telescopic belt conveyor. Utility Model Content

[0003] Therefore, it is necessary to provide a boom wire rope tensioning device and a telescopic belt conveyor that can adjust the tension of the wire rope to improve the operational stability and safety of the telescopic belt conveyor and extend its service life.

[0004] A boom wire rope tensioning device is disposed at one end of a wire rope, the boom wire rope tensioning device comprising:

[0005] The supporting structure has a guide portion extending in a straight direction;

[0006] The tensioning assembly includes an adjusting seat and a tensioning wheel rotatably mounted on the adjusting seat; the adjusting seat is slidably mounted on the guide portion.

[0007] An adjustment drive component is connected to the adjustment seat and is used to drive the adjustment seat to reciprocate the tension wheel along the extension direction of the guide portion;

[0008] A wedge-shaped joint is fixed to the support structure; the wedge-shaped joint is used to connect to one end of the wire rope wound on the tension wheel.

[0009] A telescopic belt conveyor includes a telescopic boom, a winch mechanism, a boom wire rope tensioning device as described above, and a wire rope; the telescopic boom includes a base boom and a telescopic boom; the telescopic boom is mounted on the base boom and can extend or retract relative to the base boom; the support structure is part of the base boom; the winch mechanism is mounted on the base boom; the wire rope is linked to the telescopic boom, with one end wound around the winch mechanism and the other end wound around the tensioning wheel and connected to the wedge joint.

[0010] The aforementioned boom wire rope tensioning device and telescopic belt conveyor allow for adjustments during the use and installation of the telescopic belt conveyor. When the wire rope becomes slack, the adjustment mechanism drives the tensioning wheel to move away from the wedge joint along the extension direction of the guide section, thus tightening the wire rope. This prevents the slack from affecting the normal extension and retraction of the telescopic boom and reduces the probability of breakage due to slack under stress. Conversely, if the wire rope tension is too high, the adjustment mechanism drives the tensioning wheel to slide towards the wedge joint along the extension direction of the guide section, loosening the wire rope and preventing breakage due to excessive tension during use. Therefore, the aforementioned boom wire rope tensioning device can adjust the wire rope tension to prevent problems such as the telescopic boom failing to extend or retract properly or wire rope breakage caused by slack or excessive tension. This effectively improves the operational stability and safety of the telescopic belt conveyor and extends its service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the boom wire rope tensioning device in one embodiment of the present invention;

[0012] Figure 2 for Figure 1 A bottom view of the boom wire rope tensioning device shown.

[0013] Figure 3 for Figure 1 The diagram shows the structure of the adjusting seat in the boom wire rope tensioning device.

[0014] Reference numerals: 100, boom wire rope tensioning device; 110, support structure; 111, guide section; 120, tensioning assembly; 121, adjusting seat; 1211, sliding structure; 12111, sliding plate; 12112, fixing plate; 12113, connecting plate; 1212, mounting structure; 12121, mounting plate; 12122, connecting plate; 12123, first mounting position; 12124, second mounting position; 122, tensioning wheel; 1221, rope groove; 123, connecting shaft; 124, fixing shaft; 130, adjusting drive component; 140, wedge joint; 150, mounting seat; 10, wire rope. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements. It is also understood that when an element is referred to as being "between" two elements, it may be the only one between the two elements, or there may be one or more intermediate elements.

[0018] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0019] This utility model provides a boom wire rope tensioning device and a telescopic belt conveyor. The telescopic belt conveyor includes a telescopic boom, a winch mechanism, a boom wire rope tensioning device, and a wire rope. The telescopic boom includes a base boom and a telescopic boom. The telescopic boom is mounted on the base boom and can extend or retract relative to the base boom. A support structure is part of the base boom. The winch mechanism is mounted on the base boom. The wire rope is linked to the telescopic boom, with one end wound around the winch mechanism and the other end connected to the boom wire rope tensioning device. The boom wire rope tensioning device is used to adjust the tension of the wire rope. The winch mechanism is configured to rotate forward or backward to drive the wire rope to pull the telescopic boom to extend or retract relative to the base boom.

[0020] Of course, in other embodiments, the boom wire rope tensioning device can also be used on equipment such as cranes and loaders. This embodiment of the present invention mainly uses the application of the boom wire rope tensioning device on a telescopic belt conveyor as an example for illustration.

[0021] Appendix Figure 1 The diagram illustrates the structure of a boom wire rope tensioning device according to one embodiment of the present invention. For ease of explanation, the accompanying drawings only show structures relevant to embodiments of the present invention.

[0022] Please see Figure 1 and Figure 2 The preferred embodiment of the present invention includes a boom wire rope 10 tensioning device comprising a support structure 110, a tensioning assembly 120, an adjustment drive component 130, and a wedge joint 140.

[0023] The support structure 110 has a guide portion 111 extending in a straight direction. The guide portion 111 can be formed on and part of the support structure 110, or it can be a separate structure formed independently of and fixed to the support structure 110. The tensioning assembly 120 includes an adjusting seat 121 and a tensioning wheel 122 rotatably mounted on the adjusting seat 121. The adjusting seat 121 is slidably mounted on the guide portion 111. An adjusting drive member 130 is connected to the adjusting seat 121 and drives the adjusting seat 121 to reciprocate the tensioning wheel 122 along the extending direction of the guide portion 111. A wedge joint 140 is fixed to the support structure 110. The wedge joint 140 is used to connect to one end of the wire rope 10 wound around the tensioning wheel 122.

[0024] In the telescopic belt conveyor, the support structure 110 is part of the basic boom. The end of the wire rope 10 away from the winch mechanism is wound around the tensioning wheel 122 and then connected to the wedge joint 140 to realize the installation of the boom wire rope 10 tensioning device on the telescopic belt conveyor.

[0025] During the use and installation of the telescopic belt conveyor, if the wire rope 10 becomes slack, the tensioning wheel 122 can be moved away from the wedge joint 140 along the extension direction of the guide section 111 by adjusting the drive component 130 to drive the adjustment seat 121, thereby tightening the wire rope 10. This prevents the wire rope 10 from affecting the normal extension and retraction of the telescopic boom due to slack, and reduces the probability of the wire rope 10 breaking under stress due to slack. When the tension of the wire rope 10 is too high, the tensioning wheel 122 can be moved towards the wedge joint 140 along the extension direction of the guide section 111 by adjusting the drive component 130 to loosen the wire rope 10, thereby preventing the wire rope 10 from breaking due to excessive tension during use. Therefore, the above-mentioned boom wire rope 10 tensioning device can adjust the tension of the wire rope 10 to avoid problems such as the telescopic boom failing to extend or retract normally or the wire rope 10 breaking due to the wire rope 10 being too loose or too tight. This effectively improves the operational stability and safety of the telescopic belt conveyor and extends its service life.

[0026] Please refer to the following: Figure 3 In some embodiments, the guide portion 111 is a guide groove formed on the support structure 110. The guide groove can be formed by directly slotting the support structure 110, or by fixing a base with a machined guide groove to the support structure 110. The adjusting seat 121 includes a sliding structure 1211 and a mounting structure 1212 fixed to the sliding structure 1211. The end of the sliding structure 1211 away from the mounting structure 1212 slidably passes through the guide groove. The tensioning wheel 122 is rotatably mounted on the mounting structure 1212. The sliding structure 1211 and the mounting structure 1212 can be fixedly connected by welding, screwing, or other methods, or they can be integrally formed by machining, 3D printing, or other methods. The guide portion 111 is configured as a guide groove to facilitate the installation of the adjusting seat 121 on the guide portion 111.

[0027] Of course, in other embodiments, the guide portion 111 may also be a guide rail disposed on the support structure 110.

[0028] Furthermore, in some embodiments, the guide groove is a T-shaped groove. The sliding structure 1211 includes a sliding plate 12111, a fixing plate 12112 spaced apart from the sliding plate 12111, and a connecting plate 12113 disposed between the sliding plate 12111 and the fixing plate 12112. The fixing plate 12112 is located outside the guide groove and is fixedly connected to the mounting structure 1212. The sliding plate 12111, the fixing plate 12112, and the connecting plate 12113 can be fixedly connected by welding or other methods, or they can be an integral structure obtained by machining, 3D printing, or other methods.

[0029] By configuring the guide groove as a T-shaped groove and configuring the sliding structure 1211 as a sliding plate 12111, a fixing plate 12112, and a connecting plate 12113, the sliding structure 12111 can be stably slid within the guide groove, and the probability of the sliding structure 1211 sliding out of the guide groove during the extension direction of the guide part 111 is reduced, thereby improving the operational reliability of the boom wire rope 10 tensioning device. This further enhances the safety and reliability of the telescopic belt conveyor.

[0030] Further, in some embodiments, the mounting structure 1212 includes two spaced-apart mounting plates 12121 and a connecting plate 12122 connecting the two mounting plates 12121. Each mounting plate 12121 has a first mounting position 12123 at one end and a second mounting position 12124 at the other end. The tensioning wheel 122 is rotatably connected to the two first mounting positions 12123 via a connecting shaft 123 and is located between the two mounting plates 12121. The movable end of the adjusting drive member 130 is connected to the two second mounting positions 12124 and extends between the two mounting plates 12121. The sliding structure 1211 is fixedly connected to one of the mounting plates 12121. The two mounting plates 12121 and the connecting plate 12122 can be fixedly connected by welding or other methods, or they can be an integral structure formed by 3D printing, machining, or other methods.

[0031] Thus, the connecting plate 12122 is located between the first mounting position 12123 and the second mounting position 12124. The adjusting drive component 130 and the tensioning wheel 122 are respectively installed at both ends of the mounting plate 12121, and the two mounting plates 12121 respectively provide two-point support for the movable ends of the tensioning wheel 122 and the adjusting drive component 130, ensuring that the installation of the tensioning wheel 122 and the adjusting drive component 130 is stable and reliable.

[0032] Furthermore, in some embodiments, the first mounting position 12123 is a through hole formed on the mounting plate 12121. The tensioning wheel 122 is rotatably mounted on the connecting shaft 123. Both ends of the connecting shaft 123 are respectively mounted on and fixed to the two first mounting positions 12123. During the processing, the tensioning wheel 122 is first rotatably mounted on the connecting shaft 123, and then both ends of the connecting shaft 123 are respectively fixed to the two second mounting positions 12124 by means of interference fit, pin positioning, pressure plate fixing, etc., so as to realize the installation of the tensioning wheel 122 on the mounting structure 1212.

[0033] Of course, in other embodiments, the tensioning wheel 122 is fixed on the connecting shaft 123, and the two ends of the connecting shaft 123 are rotatably inserted through the two first mounting positions 12123.

[0034] Furthermore, in some embodiments, the tensioning device for the boom wire rope 10 also includes a fixed shaft 124. The second mounting position 12124 is a through hole formed in the mounting plate 12121. Both ends of the fixed shaft 124 pass through and are fixed to the two second mounting positions 12124 respectively. The adjusting drive component 130 is a sliding cylinder. The piston rod of the sliding cylinder extends between the two mounting plates 12121 and is sleeved on the fixed shaft 124. The piston rod of the sliding cylinder has a connecting hole. During the installation of the adjusting drive component 130, the fixed shaft 124 is first passed through the connecting hole, and then both ends of the fixed shaft 124 are fixed to the two second mounting positions 12124 respectively through interference fit, pin positioning, pressure plate fixing, etc., thereby realizing the installation of the adjusting drive component 130 on the mounting structure 1212.

[0035] The sliding cylinder has the advantages of high load capacity, good wear resistance and safe and reliable sliding. It also has the characteristics of compact structure and flexible operation. Therefore, setting the adjustment drive 130 as a sliding cylinder can not only make the sliding of the adjustment seat 121 relative to the guide part 111 safer and more reliable, but also make the structure of the boom wire rope 10 tensioning device more compact.

[0036] Furthermore, in some embodiments, the boom wire rope 10 tensioning device further includes a mounting base 150 fixed to the support structure 110. The mounting base 150 has a through-hole at one end facing the tensioning wheel 122. One end of the sliding cylinder body is fixed to the end of the mounting base 150 opposite to the tensioning wheel 122. The piston rod of the sliding cylinder passes through the mounting hole and extends between the two mounting plates 12121. The mounting base 150 can be a block structure, or a curved plate, flat plate, or similar structure. The mounting base 150 makes the installation of the sliding cylinder on the support structure 110 more convenient and stable.

[0037] In some embodiments, the outer periphery of the tensioning pulley 122 is recessed inwardly to form a rope groove 1221 capable of winding a single wire rope 10. When the wire rope 10 is wound around the tensioning pulley 122, the wire rope 10 is located within the rope groove 1221, which reduces the probability of the wire rope 10 slipping off the tensioning pulley 122 when it slackens, further improving the safety and reliability of the boom wire rope 10 tensioning device.

[0038] In some embodiments, the boom wire rope 10 tensioning device further includes two limiting members (not shown). The two limiting members are spaced apart on the support structure 110 along the extending direction of the guide portion 111 and are used to limit the two extreme positions of the adjusting seat 121 on the guide portion 111. Specifically, the limiting members are detachably mounted on the support structure 110. The two limiting members can be fixed at a distance along the extending direction of the guide portion 111 on the guide portion 111, or they can be fixed at other positions on the support structure 110 along the extending direction of the guide portion 111, as long as they can limit the adjusting seat 121 on the guide portion 111. The provision of the two limiting members reduces the probability that the adjusting seat 121 will slide out of the guide portion 111 under the driving force of the adjusting drive member 130, further improving the safety and reliability of the boom wire rope 10 tensioning device.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A boom wire rope tensioning device, disposed at one end of the wire rope, characterized in that, The boom wire rope tensioning device includes: The supporting structure has a guide portion extending in a straight direction; The tensioning assembly includes an adjusting seat and a tensioning wheel rotatably mounted on the adjusting seat; the adjusting seat is slidably mounted on the guide portion. An adjustment drive component is connected to the adjustment seat and is used to drive the adjustment seat to reciprocate the tension wheel along the extension direction of the guide portion; A wedge-shaped joint is fixed to the support structure; the wedge-shaped joint is used to connect to one end of the wire rope wound on the tension wheel.

2. The boom wire rope tensioning device according to claim 1, characterized in that, The guide portion is a guide groove formed on the support structure; the adjusting seat includes a sliding structure and a mounting structure fixed on the sliding structure; one end of the sliding structure away from the mounting structure is slidably inserted into the guide groove; the tensioning wheel is rotatably mounted on the mounting structure.

3. The boom wire rope tensioning device according to claim 2, characterized in that, The guide groove is a T-shaped groove; the sliding structure includes a sliding plate, a fixed plate spaced apart from the sliding plate, and a connecting plate disposed between the sliding plate and the fixed plate; the fixed plate is located outside the guide groove and is fixedly connected to the mounting structure.

4. The boom wire rope tensioning device according to claim 2, characterized in that, The mounting structure includes two spaced-apart mounting plates and a connecting plate between the two mounting plates; each mounting plate has a first mounting position at one end and a second mounting position at the other end; the tensioning wheel is rotatably connected to the two first mounting positions via a connecting shaft and is located between the two mounting plates; the movable end of the adjusting drive is connected to the two second mounting positions and extends between the two mounting plates; the sliding structure is fixedly connected to one of the mounting plates.

5. The boom wire rope tensioning device according to claim 4, characterized in that, The first mounting position is a through hole formed on the mounting plate; the tensioning wheel is rotatably mounted on the connecting shaft; the two ends of the connecting shaft are respectively mounted on and fixed to the two first mounting positions.

6. The boom wire rope tensioning device according to claim 4, characterized in that, It also includes a fixed shaft; the second mounting position is a through hole opened on the mounting plate; the two ends of the fixed shaft are respectively inserted and fixed to the two second mounting positions; the adjusting drive component is a sliding cylinder; the piston rod of the sliding cylinder extends between the two mounting plates and is sleeved on the fixed shaft.

7. The boom wire rope tensioning device according to claim 6, characterized in that, It also includes a mounting base fixed to the support structure; the mounting base has a mounting hole through the mounting base at one end facing the tensioning wheel; one end of the cylinder body of the sliding cylinder is fixed to the end of the mounting base away from the tensioning wheel; the piston rod of the sliding cylinder passes through the mounting hole and extends between the two mounting plates.

8. The boom wire rope tensioning device according to claim 1, characterized in that, The outer periphery of the tensioning wheel is recessed inward with a rope groove capable of winding a single steel wire rope.

9. The boom wire rope tensioning device according to claim 1, characterized in that, It also includes two limiting members; the two limiting members are spaced apart on the support structure along the extension direction of the guide portion, and are used to limit the two extreme positions of the adjusting seat on the guide portion.

10. A telescopic belt conveyor vehicle, characterized in that, The device includes a telescopic boom, a winch mechanism, a boom wire rope tensioning device as described in any one of claims 1 to 9, and a wire rope; the telescopic boom includes a base boom and a telescopic boom; the telescopic boom is mounted on the base boom and can extend or retract relative to the base boom; the support structure is part of the base boom; the winch mechanism is mounted on the base boom; the wire rope is linked to the telescopic boom, with one end wound around the winch mechanism and the other end wound around the tensioning wheel and connected to the wedge joint.

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