Weighing detection device for arm type aerial work platform

Abstract

The utility model discloses an arm type aerial work platform weighing detection device which comprises a connecting frame, a bracket, connecting rod assemblies, a weighing unit, a fixing assembly and a limiting assembly, and the connecting rod assemblies are symmetrically arranged at the upper end and the lower end between the connecting frame and the bracket and used for connecting the connecting frame and the bracket. The weighing unit is arranged in the middle between the connecting frame and the bracket through the fixing assembly, the limiting assembly is arranged between the connecting frame and the bracket and close to the upper end of the weighing unit and is used for bearing an impact load, the weighing unit comprises a weighing unit main body and an adjusting pressure head, and the adjusting pressure head is adjustably arranged at the sensing end of the weighing unit; the connecting rod assembly comprises a connecting rod, pin shafts and bearings, and the pin shafts are rotatably arranged on the two sides of the connecting rod through the bearings. The weighing device is simple in overall structure and low in manufacturing cost, effectively prevents the weighing unit from bearing impact load, and avoids weighing errors caused by structural abrasion after long-term use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to weighing technical field especially relates to a kind of arm type aerial work platform weighing detection device. BACKGROUND

[0002] Existing platform weighing device has single-point weighing and multi-point weighing etc. Among them, multi-point weighing device needs multiple weighing units, and the cost is higher, and it is not easy to eliminate fault, and multiple weighing units need to be connected with signal converter for processing, which affects the weighing accuracy. The existing single-point weighing device lacks positioning in the vertical direction of the connection frame fixed with the boom, and vibration may occur during transportation, impact load may occur between the structural member and the weighing unit, causing the weighing unit to fail, the pin shaft directly contacts and cooperates with the structural member, and the structure is worn out after long-term use, affecting the weighing accuracy. INVENTION CONTENTS

[0003] To solve the above-mentioned problems in the prior art, the utility model provides an arm type aerial work platform weighing detection device, which comprises a connecting frame, a bracket, a connecting rod assembly, a weighing unit, a fixing assembly and a limiting assembly. The connecting rod assembly is symmetrically arranged between the upper and lower ends of the connecting frame and the bracket, and is used for connecting the connecting frame and the bracket. The weighing unit is arranged in the middle part between the connecting frame and the bracket through the fixing assembly. The limiting assembly is arranged near the upper end of the weighing unit between the connecting frame and the bracket, and is used for bearing impact load.

[0004] The weighing unit comprises a weighing unit body and an adjustable pressure head, and the adjustable pressure head is adjustably arranged at the sensing end of the weighing unit.

[0005] The connecting rod assembly comprises a connecting rod, a pin shaft and a bearing, and the pin shaft is rotatably arranged on both sides of the connecting rod through the bearing.

[0006] Further, in the above-mentioned arm type aerial work platform weighing detection device, the middle part of the connecting frame is provided with a mounting plate, and the weighing unit body is fixed on the mounting plate through the fixing assembly.

[0007] Further, in the above-mentioned arm type aerial work platform weighing detection device, the limiting assembly comprises an upper positioning plate, a lower positioning plate and a backing plate, the upper positioning plate is welded on the connecting frame, the lower positioning plate is welded on the bracket, the lower positioning plate corresponds to and intersects with the upper positioning plate, the backing plate is arranged between the upper positioning plate and the lower positioning plate, and the backing plate is fixedly connected with the upper positioning plate or the lower positioning plate through bolts.

[0008] Further, in the arm type aerial work platform weighing detection device, the pad is made of rubber material, and an area of the pad is greater than or equal to an intersection area of the upper positioning plate and the lower positioning plate.

[0009] Further, in the arm type aerial work platform weighing detection device, the adjusting pressure head abuts against the lower positioning plate, and the adjusting pressure head is a spherical surface.

[0010] Further, in the arm type aerial work platform weighing detection device, the connecting rod is symmetrically provided with mounting holes on both sides, the bearing outer ring is nested on the connecting rod through the mounting holes, the pin shaft is transitionally matched with the bearing inner ring, one end of the pin shaft on one side of the connecting rod is hinged to the connecting frame, and the other end of the pin shaft on the other side of the connecting rod is hinged to the bracket.

[0011] The arm type aerial work platform weighing detection device has the following advantages and beneficial effects.

[0012] The arm type aerial work platform weighing detection device has the following advantages and beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only used to further understand the embodiments of the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained without creative labor based on these drawings. In the drawings:

[0014] Figure 1 It is a perspective structural schematic view of the arm type aerial work platform weighing detection device of the present application.

[0015] Figure 2 It is Figure 1 a sectional structural schematic view along A-A.

[0016] EXPLANATION OF REFERENCE NUMERALS:

[0017] 1: connecting frame, 11: mounting plate;

[0018] 2: bracket;

[0019] 3: connecting rod assembly, 31: connecting rod, 311: mounting hole, 32: pin shaft, 33: bearing;

[0020] 4: weighing unit, 41: weighing unit body, 42: adjusting pressure head;

[0021] 5: Fixed components;

[0022] 6: Limiting component; 61: Upper positioning plate; 62: Lower positioning plate; 63: Pad plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] like Figures 1-2 As shown, the boom-type aerial work platform weighing and testing device of this utility model includes a connecting frame 1, a bracket 2, a connecting rod assembly 3, a weighing unit 4, a fixing assembly 5, and a limiting assembly 6. The connecting rod assembly 3 is symmetrically arranged at the upper and lower ends between the connecting frame 1 and the bracket 2 for connecting the connecting frame 1 and the bracket 2. The weighing unit 4 is set in the middle between the connecting frame 1 and the bracket 2 through the fixing assembly 5. The limiting assembly 6 is set between the connecting frame 1 and the bracket 2 near the upper end of the weighing unit 4 to withstand impact loads.

[0025] The weighing unit 4 includes a weighing unit body 41 and an adjusting pressure head 42, which is adjustablely disposed at the sensing end of the weighing unit 4.

[0026] The connecting rod assembly 3 includes a connecting rod 31, a pin 32, and a bearing 33. The pin 32 is rotatably mounted on both sides of the connecting rod 31 via the bearing 33.

[0027] Furthermore, in the boom-type aerial work platform weighing and testing device of this utility model, a mounting plate 11 is provided in the middle of the connecting frame 1, and the main body 41 of the weighing unit is fixed on the mounting plate 11 by the fixing component 5, thereby effectively ensuring that the weighing unit 4 is fixed to the connecting frame 1 and avoiding the vibration generated during the weighing process from affecting the accuracy of the weighing unit 4.

[0028] Furthermore, in the boom-type aerial work platform weighing and detection device of this utility model, the limiting component 6 includes an upper positioning plate 61, a lower positioning plate 62, and a pad 63. The upper positioning plate 61 is welded to the connecting frame 1, and the lower positioning plate 62 is welded to the bracket 2. The lower positioning plate 62 corresponds to and intersects with the upper positioning plate 61. The pad 63 is disposed between the upper positioning plate 61 and the lower positioning plate 62. The pad 63 is fixedly connected to the upper positioning plate 61 or the lower positioning plate 62 by bolts, so that when the bracket 2 is subjected to impact load, the lower positioning plate 62 is limited by the upper positioning plate 61, effectively preventing the weighing unit 4 from bearing impact load.

[0029] Further, in the arm type aerial work platform weighing detection device, the gasket 63 is made of rubber material, and the area of the gasket 63 is greater than or equal to the intersection area of the upper positioning plate 61 and the lower positioning plate 62, so that the lower positioning plate 62 effectively avoids abnormal noise generated when colliding when the impact force is generated on the upper positioning plate 61, and effectively avoids damage to the weighing unit 4 caused by vibration when colliding.

[0030] Further, in the arm type aerial work platform weighing detection device, the adjusting pressure head 42 abuts against the lower positioning plate 62, and the adjusting pressure head 42 is a spherical surface, so that the weighing error caused by unbalanced load is effectively avoided, and the precision is effectively improved.

[0031] Further, in the arm type aerial work platform weighing detection device, the mounting hole 311 is symmetrically arranged on both sides of the connecting rod 31, the outer ring of the bearing 33 is nested on the connecting rod 31 through the mounting hole 311, and the pin shaft 32 is in transition fit with the inner ring of the bearing 33, wherein one side of the connecting rod 31 is hinged to the connecting frame 1 at both ends of the pin shaft 32, and the other side of the connecting rod 31 is hinged to the bracket 2 at both ends of the pin shaft 32, so that the wear of the connecting frame 1 and the bracket 2 caused by long-term rotation of the pin shaft 32 is effectively prevented, and thus the jamming occurs.

[0032] Specifically, in use, the bracket 2 is stressed, the pin shaft 32 on both sides of the connecting rod 31 is rotated through the bearing 33, the bracket 2 moves downward, and in the movement process, the impact load is impacted on the upper positioning plate 61 through the gasket 63 on the upper end surface of the lower positioning plate 62, so that the weighing unit 4 bears the impact load, and at the same time, the lower end surface of the lower positioning plate 62 extrudes the adjusting pressure head 42, since the lower positioning plate 62 and the adjusting pressure head 42 are in point-surface contact, so that the pressure direction of the adjusting pressure head 42 deviated from the detection direction of the weighing unit main body 41 caused by unbalanced load is effectively prevented, and the detection precision is improved.

[0033] In summary, compared with the prior art, the arm type aerial work platform weighing detection device has the following advantages and beneficial effects:

[0034] The arm type aerial work platform weighing detection device has the advantages of simple overall structure, low manufacturing cost, effective avoidance of impact load borne by the weighing unit through the setting of the limiting assembly, and avoidance of weighing error caused by long-term use structure wear through the cooperation assembly of the bearing and the pin shaft.

[0035] It should be noted that, in this article, unless otherwise specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, for those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. At the same time, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this article are referred to the placement state shown in the drawings.

[0036] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An aerial work platform weighing detection device, characterized in that, The arm type aerial work platform weighing detection device includes a connecting frame, a bracket, a connecting rod assembly, a weighing unit, a fixing assembly and a limiting assembly, the connecting rod assembly is symmetrically arranged between the upper and lower ends of the connecting frame and the bracket, used for connecting the connecting frame and the bracket, the weighing unit is arranged in the middle between the connecting frame and the bracket through the fixing assembly, and the limiting assembly is arranged near the upper end of the weighing unit between the connecting frame and the bracket and used for bearing impact load, wherein: The weighing unit includes a weighing unit main body and an adjusting pressure head, and the adjusting pressure head is adjustably arranged at the sensing end of the weighing unit; The connecting rod assembly includes a connecting rod, a pin shaft and a bearing, and the pin shaft is rotatably arranged on both sides of the connecting rod through the bearing; The middle part of the connecting frame is provided with a mounting plate, and the weighing unit main body is fixed on the mounting plate through the fixing assembly, so that the weighing unit and the connecting frame are fixed, and vibration generated during weighing does not affect the accuracy of the weighing unit; The limiting assembly includes an upper positioning plate, a lower positioning plate and a pad plate, the upper positioning plate is welded on the connecting frame, the lower positioning plate is welded on the bracket, the lower positioning plate corresponds to and intersects with the upper positioning plate, the pad plate is arranged between the upper positioning plate and the lower positioning plate, and the pad plate is fixedly connected with the upper positioning plate or the lower positioning plate through bolts, so that the upper positioning plate limits the lower positioning plate when the bracket is impacted, and the weighing unit is prevented from bearing impact load; The pad plate is made of rubber material, and the area of the pad plate is greater than or equal to the intersection area of the upper positioning plate and the lower positioning plate, so that abnormal noise generated during collision is avoided when the lower positioning plate impacts the upper positioning plate, and vibration generated during collision is also avoided to prevent damage to the weighing unit; The adjusting pressure head abuts against the lower positioning plate, the adjusting pressure head is a spherical surface, the lower positioning plate and the adjusting pressure head are in point-surface contact, and the adjusting pressure head is prevented from deviating from the detection direction of the weighing unit main body due to deviation of bearing pressure direction; The connecting rod is symmetrically provided with mounting holes on both sides, the bearing outer ring is nested on the connecting rod through the mounting holes, and the pin shaft is transitionally connected with the bearing inner ring, wherein the pin shaft on one side of the connecting rod is hinged to the connecting frame, and the pin shaft on the other side of the connecting rod is hinged to the bracket.

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