Telescopic arm and telescopic belt conveying vehicle

Abstract

The invention belongs to the field of conveying equipment, and particularly relates to a telescopic arm and a telescopic belt conveying vehicle. The device comprises a basic arm and an extending arm, the extending arm is arranged in the basic arm and is in sliding connection with the basic arm through a limiting and guiding assembly, the limiting and guiding assembly comprises a limiting sliding rail detachably arranged on the basic arm and a protruding block arranged on the extending arm, the protruding block is in sliding connection with the limiting sliding rail, and a sensor is arranged on the limiting sliding rail. The sensor is used for detecting the distance between the protruding block and the inner side wall of the limiting sliding rail, automatic detection of the abrasion condition in the using process can be achieved, when the distance between the protruding block and the limiting sliding rail exceeds a given value, the system automatically reminds a worker to replace the limiting sliding rail, and the stability and safety of operation of the telescopic arm are improved. The reinforcing beams wrap the outer side walls of the webs, the main body frame is made of high-strength light abrasion-resistant materials, light-weight design can be achieved, and the connection reliability of the main body frame and the webs is improved.

Description

Technical Field

[0001] The invention belongs to the field of conveying equipment, and in particular relates to a telescopic arm and a telescopic belt conveyor vehicle. Background Art

[0002] Telescopic belt conveyor can transport large amounts of concrete and various bulk materials, so it is an ideal equipment for large-volume concrete transportation in construction sites such as concrete foundations, high-speed railways, high-grade highways, ditches, airports, docks, etc. In addition, the telescopic belt conveyor can also be installed and laid in spaces less than four meters high, such as tunnels, gymnasiums, warehouses, underground garages and other indoor and low-altitude working environments. It is the preferred equipment for laying materials in low-altitude environments.

[0003] The telescopic belt conveyor is a multi-purpose equipment. It is flexible and can be used in many places. It can transport multiple materials such as stone, sand, concrete, etc. at the same place with the same equipment, while the concrete pump truck can only pump concrete materials; and the telescopic belt conveyor can quickly move from one position to another to distribute materials at multiple points. Because the telescopic arm has a long extension length, the operation stability is very important. In the prior art, the telescopic arm will wear the slide rail when it is extended along the base arm, which is easy to cause derailment. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention provides a telescopic arm and a telescopic belt conveyor, which can improve the operating stability of the telescopic arm.

[0005] To achieve the above object, the technical solution provided by the present invention is as follows:

[0006] In the first aspect, the present application provides a telescopic arm, comprising a basic arm and an extending arm, wherein the extending arm is arranged in the basic arm and is slidably connected to the basic arm through a limiting guide assembly, wherein the limiting guide assembly comprises a limiting slide rail detachably arranged on the basic arm and a protrusion arranged on the extending arm, wherein the protrusion is slidably connected to the limiting slide rail, and a sensor is arranged on the limiting slide rail, wherein the sensor is used to detect the distance between the protrusion and the inner side wall of the limiting slide rail.

[0007] Optionally, two extending arms are slidably connected inside the one extending arm, and the one extending arm and the two extending arms are connected via a limiting guide component.

[0008] Optionally, the basic arm includes an arm tail and a web, the webs are symmetrically arranged on both sides of the arm tail, reinforcement beams are respectively provided on the top wall and the bottom wall of the web, the reinforcement beams are U-shaped, the reinforcement beams are covered on the outer side wall of the web, and the reinforcement beams on the bottom walls of the two webs are connected by a cross beam.

[0009] Optionally, an arm end beam is provided on the side of the web facing away from the arm tail, and both ends of the arm end beam are respectively connected to reinforcement beams arranged on the top wall and the bottom wall of the web.

[0010] Optionally, the web is provided with web weight reduction holes.

[0011] Optionally, the web and the reinforcement beam are fixed by riveting or welding.

[0012] Optionally, the two extension arms include a bottom plate, vertical plates arranged on both sides of the bottom plate, and a top beam arranged on the vertical plates, and the bottom plate, the vertical plates and the top beam are integrally formed.

[0013] Optionally, the bottom plate is provided with bottom plate weight-reducing holes, and the vertical plates are provided with vertical plate weight-reducing holes.

[0014] Optionally, the basic arm, the first extension arm and the second extension arm are made of high-strength, lightweight and wear-resistant materials.

[0015] In a second aspect, the present application further provides a telescopic belt conveyor, comprising the telescopic arm described in the first aspect.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] The present invention can detect the distance between the protrusion and the side wall of the limit rail by setting a sensor, so as to realize automatic detection of the wear of the protrusion or the limit rail during use. When the distance between the protrusion and the limit rail exceeds a given value, the system automatically reminds the staff to replace the limit rail, thereby improving the stability and safety of the telescopic arm operation. The reinforcement beam adopts a U-shaped design and is coated on the outer wall of the web, which can not only realize a lightweight design but also improve the reliability of the connection with the web; the main frame adopts high-strength, lightweight and wear-resistant aluminum alloy, steel and other materials, with high versatility and low manufacturing cost, and the lightweight design reduces the deadweight, which is conducive to the stability of the telescopic arm operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the side structure of a telescopic arm in an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of a three-dimensional structure of a telescopic arm in an embodiment of the present application;

[0021] Figure 3 This is a schematic diagram of a basic arm in an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of the two-extended wall structure in the embodiment of the present application;

[0023] Description of reference numerals:

[0024] 1. Basic arm; 11. Arm tail; 12. Web plate; 121. Web plate weight-reducing hole; 13. Reinforcement beam; 14. Cross beam; 15. Arm end beam; 2. One extension arm; 3. Two extension arms; 31. Vertical plate; 311. Vertical plate weight-reducing hole; 32. Bottom plate; 321. Bottom plate weight-reducing hole; 33. Top beam; 4. Limit guide mechanism; 41. Bump; 42. Limit slide rail; 5. Sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use.

[0026] Example 1

[0027] The present application provides a telescopic arm, comprising a basic arm 1 and an extending arm 2, wherein the extending arm 2 is arranged in the basic arm 1 and is slidably connected to the basic arm 1 through a limiting guide assembly, wherein the limiting guide assembly comprises a limiting slide rail 42 detachably arranged on the basic arm 1 and a protrusion 41 arranged on the extending arm 2, wherein the limiting slide rail 42 is arranged on the inner side of the basic arm 1, and the protrusion 41 is arranged on the left and right sides of the extending arm 2, the limiting slide rail 42 and the protrusion 41 are arranged correspondingly, the protrusion 41 is clamped in the limiting slide rail 42, the protrusion 41 is slidably connected to the limiting slide rail 42, and a sensor 5 is arranged on the limiting slide rail 42, and the sensor 5 is used to detect the distance between the protrusion 41 and the inner side wall of the limiting slide rail 42.

[0028] Under normal use, the protrusions 41 on both sides are clamped in the limit rails 42, and a telescopic arm 2 can be extended relative to the basic arm 1 by sliding along the limit rails 42 through the protrusions 41 on both sides. As the use time increases, the upper and lower or left and right inner walls of the limit rails 42 on both sides will be worn. When the wear is too large, a telescopic arm 2 may be at risk of derailment. The distance between the protrusion 41 and the inner wall of the limit rail 42 is detected by the sensor 5, and the wear of the limit rail 42 can be timely grasped without affecting normal operation. When the distance between the protrusion 41 and the limit rail 42 exceeds a given value, the sensor 5 sends a signal to remind the staff to replace it, thereby improving the stability and safety of the telescopic arm operation. According to the actual wear condition, the distance between the protrusion 41 and the different side walls of the limit rail 42 can be detected by the sensor 5 to meet actual needs.

[0029] Example 2

[0030] like Figure 1-Figure 2 As shown, the difference between this embodiment and embodiment 1 is that: two extension arms 3 are slidably connected in one extension arm 2, and the one extension arm 2 and the two extension arms 3 are connected through a limit guide assembly. The connection method between the one extension arm 2 and the two extension arms 3 is the same as the connection method between the same extension arm 2 of the basic arm 1. By adding the two extension arms 3, the elongation of the telescopic arm is increased, and the scope of application is increased. The materials for the basic arm 1, the one extension arm 2 and the two extension arms 3 can be any materials that meet the characteristics of high strength, light weight, and wear resistance, such as steel, aluminum alloy, carbon fiber composite materials, etc. The frame structure of the telescopic arm can not only ensure the strength and rigidity requirements, but also achieve lightweight design.

[0031] like Figure 3 As shown, the basic arm 1 includes an arm tail 11 and a web 12. The webs 12 are symmetrically arranged on both sides of the arm tail 11. Reinforcement beams 13 are respectively arranged on the top wall and the bottom wall of the web 12. The reinforcement beams 13 are U-shaped and are covered on the outer side wall of the web 12. Through the structural design of the reinforcement beams 13, both the structure can be lightweight and the reliability of the connection with the web 12 can be improved. The reinforcement beams 13 on the bottom walls of the two webs 12 are connected by a cross beam 14. An arm end beam 15 is arranged on the side of the web 12 away from the arm tail 11. The two ends of the arm end beam 15 are respectively connected to the reinforcement beams 13 arranged on the top wall and the bottom wall of the web 12. The web 12 is fixed to the reinforcement beam 13 by riveting. The structural design of the extension arm 2 is the same as that of the basic arm 1.

[0032] like Figure 4 As shown, the two extension arms 3 include a bottom plate 32, vertical plates 31 arranged on both sides of the bottom plate 32, and a top beam 33 arranged on the vertical plates 31. Since the cross-sectional size of the two extension walls is relatively small, the bottom plate 32, the vertical plates 31 and the top beam 33 are integrally formed. The protrusions 41 on the two extension walls are arranged on the top beam 33, and the protrusions 41 cooperate with the limiting slide rails 42 to achieve the function of guiding and supporting.

[0033] The web 12 is provided with a web 12 weight-reducing hole, the bottom plate 32 is provided with a bottom plate 32 weight-reducing hole, and the vertical plate 31 is provided with a vertical plate 31 weight-reducing hole, so that the telescopic arm itself is lightweight. The bottom plate 32 weight-reducing hole and the vertical plate 31 weight-reducing hole are both made by machining and cutting, which can ensure the strength of the two extension wall bodies.

[0034] A telescopic belt conveyor comprises the telescopic arm mentioned above.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0036] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A telescopic arm, characterized in that: It includes a basic arm and an extending arm, wherein the extending arm is arranged in the basic arm and is slidably connected to the basic arm through a limiting guide assembly, wherein the limiting guide assembly includes a limiting slide rail detachably arranged on the basic arm and a protrusion arranged on the extending arm, wherein the protrusion is slidably connected to the limiting slide rail, and a sensor is arranged on the limiting slide rail, wherein the sensor is used to detect the distance between the protrusion and the inner side wall of the limiting slide rail.

2. The telescopic arm according to claim 1, characterized in that: The one extending arm is slidably connected with two extending arms, and the one extending arm and the two extending arms are connected via a limiting guide component.

3. The telescopic arm according to claim 1, characterized in that: The basic arm includes an arm tail and a web, the webs are symmetrically arranged on both sides of the arm tail, and reinforcing beams are respectively arranged on the top wall and the bottom wall of the web. The reinforcing beams are U-shaped and covered on the outer side wall of the web. The reinforcing beams on the bottom walls of the two webs are connected by a cross beam.

4. The telescopic arm according to claim 3, characterized in that: An arm end beam is arranged on one side of the web away from the arm tail, and two ends of the arm end beam are respectively connected to reinforcing beams arranged on the top wall and the bottom wall of the web.

5. The telescopic arm according to claim 3, characterized in that: The web is provided with web weight-reducing holes.

6. The telescopic arm according to claim 3, characterized in that: The web and the reinforcement beam are fixed by riveting or welding.

7. The telescopic arm according to claim 2, characterized in that: The two extension arms include a bottom plate, vertical plates arranged on both sides of the bottom plate, and a top beam arranged on the vertical plates. The bottom plate, the vertical plates and the top beam are integrally formed.

8. The telescopic arm according to claim 7, characterized in that: The bottom plate is provided with bottom plate weight reduction holes, and the vertical plates are provided with vertical plate weight reduction holes.

9. The telescopic arm according to claim 2, characterized in that: The basic arm, the first extension arm and the second extension arm are made of high-strength, light-weight and wear-resistant materials.

10. A telescopic belt conveyor, characterized in that: The invention comprises the telescopic arm as described in any one of claims 1 to 9.

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