A kind of excavator movable arm bucket lever ear plate perpendicularity and range checking tooling

CN224719362UActive Publication Date: 2026-09-04XCMG EXCAVATOR MACHINERY CO LTD
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Patent Information

Application Number
CN202522257100.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-04
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

例如,两侧耳板垂直度需分别测量,测量耳板档距时需要更换量具再测量一次,单个耳板需三次测量才能完成检测要求,速度慢、耗时长,且人工操作可能会因为疲劳等因素而进一步降低测量效率,导致了生产效率低下;同时,两侧耳板垂直度需要用直角尺测量,耳板档距需要用盒尺测量,二者均需要人工读取测量数据,并与技术要求比对以判断测量结果,结果判定受人为因素影响,且容易出现测量不准确等问题,导致不良件流转至下一工序

Benefits of technology

[0019](1)将垂直度检测与内档档距检测工具设计在一起,避免测量过程中切换工具,提高测量效率;

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Abstract

The utility model discloses a kind of excavator movable arm bucket lever ear plate perpendicularity and span inspection tool, including quasi-rectangular tooth plate and reinforcing plate;The quasi-rectangular tooth plate includes first tooth, second tooth and third tooth, and first tooth and second tooth form first ear plate groove, and second tooth and third tooth form second ear plate groove, and the first ear plate groove and second ear plate groove are used to accommodate ear plate when carrying out ear plate perpendicularity and span inspection;The reinforcing plate is inverted U-shaped structure, and is fixedly connected with excavator movable arm bucket lever ear plate perpendicularity and span inspection tool, for enhancing the rigidity of overall structure.The tool is simple in structure, convenient to use, and high in detection efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of excavator boom stick inspection technology, and in particular to a tooling for inspecting the verticality and spacing of the excavator boom stick lugs. Background Technology

[0002] With the diversification of market demand, excavator models and operating conditions are numerous, and product quality requirements are becoming increasingly stringent. During the production process, the inspection of ear plate perpendicularity and inner clearance presents several problems. For example, the perpendicularity of both ear plates needs to be measured separately, and the ear plate clearance requires changing the measuring tool and measuring again. A single ear plate requires three measurements to meet the inspection requirements, which is slow, time-consuming, and manual operation may further reduce measurement efficiency due to fatigue, leading to low production efficiency. Furthermore, the perpendicularity of both ear plates needs to be measured with a right-angle ruler, and the ear plate clearance needs to be measured with a measuring tape. Both require manual reading of the measurement data and comparison with technical requirements to determine the results. The judgment is susceptible to human factors and prone to inaccuracies, resulting in defective parts being transferred to the next process.

[0003] Therefore, there is an urgent need for a tooling that can achieve rapid measurement to solve the above problems and improve production efficiency and quality stability. Utility Model Content

[0004] Objective: To overcome the shortcomings of existing technologies, this utility model provides a tooling for inspecting the verticality and spacing of the boom and stick lugs of an excavator, which can complete the inspection of the verticality and spacing of the boom and stick lugs in one go, with high efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a tooling for inspecting the verticality and spacing of the boom arm lug plate of an excavator, including a rectangular toothed plate and a reinforcing plate; The rectangular toothed plate includes a first tooth, a second tooth, and a third tooth. A first ear plate groove is formed between the first tooth and the second tooth, and a second ear plate groove is formed between the second tooth and the third tooth. The first ear plate groove and the second ear plate groove are used to accommodate the ear plate when performing ear plate perpendicularity and spacing tests. The reinforcing plate has an inverted U-shaped structure and is fixedly connected to the excavator boom stick ear plate verticality and spacing inspection fixture to enhance the overall structural rigidity.

[0007] This structure integrates the functions of ear plate perpendicularity and spacing detection, and can obtain the inspection results in one go without changing the measuring tools, which is highly efficient.

[0008] In some embodiments, the width of the first tooth is equal to that of the third tooth, and the width of the second tooth is greater than that of the first and third teeth; the width of the second tooth is less than the maximum spacing between the lugs on both sides of the excavator boom.

[0009] In practical applications, the width of the second tooth is designed according to the specified gap between the ear plates on both sides of the excavator boom, which improves the convenience of gap detection.

[0010] In some embodiments, two reinforcing plates are provided, corresponding to the positions of the first ear plate groove and the second ear plate groove.

[0011] In some embodiments, the bottoms of the first and third teeth are bent outwards to facilitate the insertion of the ear plates on both sides of the excavator boom into the first ear plate slot and the second ear plate slot, respectively.

[0012] In some embodiments, the second tooth is a rectangular structure with the bottom corners cut off, which facilitates the insertion of the ear plates on both sides of the excavator boom into the first ear plate slot and the second ear plate slot, respectively.

[0013] The bent bottom design improves the tolerance for errors when inserting the ear plate, making it easier to use and improving inspection efficiency.

[0014] In some embodiments, a through hole is formed on the second tooth, the through hole being a rounded rectangle, to reduce the amount of material used in manufacturing.

[0015] In some embodiments, a hand-held hole is provided at the center of the top of the rectangular toothed plate. The hand-held hole is a rounded rectangle, which is used to facilitate the inspection personnel to hold the inspection tool for the verticality and spacing of the boom arm ear plate of the excavator.

[0016] In some embodiments, suspension holes are provided on both sides of the hand-held hole for suspending the excavator boom stick lugs verticality and spacing inspection fixture, thereby reducing manufacturing material consumption.

[0017] The design of the through hole and suspension hole on the second tooth reduces the amount of material used in manufacturing the tooling for inspecting the verticality and spacing of the boom stick lugs of the excavator, thus lowering production costs.

[0018] Beneficial effects:

[0019] (1) The verticality detection and inner span detection tools are designed together to avoid switching tools during the measurement process and improve measurement efficiency;

[0020] (2) Reduce the number of measurements, greatly reduce the working time of manual inspection of ear plates, and improve production efficiency;

[0021] (3) Reduce the impact of operators on measurement results, ensure quality stability during mass production, and improve product quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the excavator boom stick lug plate verticality and span inspection fixture in an embodiment of this utility model.

[0024] Figure 2 This is a schematic diagram showing the usage state of the excavator boom stick lug plate verticality and spacing inspection tool in an embodiment of this utility model.

[0025] In the figure: 1. Rectangular toothed plate, 2. Reinforced plate, 31. First tooth, 32. Second tooth, 33. Third tooth, 41. First ear plate groove, 42. Second ear plate groove, 5. Through hole, 61. Hand-held hole, 62. Suspension hole, 7. Bucket rod. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may include different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] Example 1:

[0029] This embodiment provides a fixture for inspecting the verticality and spacing of the boom arm lugs of an excavator, such as... Figure 1As shown, it includes a rectangular toothed plate 1 and a reinforcing plate 2; the rectangular toothed plate 1 includes a first tooth 31, a second tooth 32 and a third tooth 33, a first ear plate groove 41 is formed between the first tooth 31 and the second tooth 32, and a second ear plate groove 42 is formed between the second tooth 32 and the third tooth 33. The first ear plate groove 41 and the second ear plate groove 42 are used to accommodate the ear plate when performing ear plate verticality and span inspection; the reinforcing plate 2 has an inverted U-shaped structure and is fixedly connected to the excavator boom stick ear plate verticality and span inspection fixture, which enhances the overall structural rigidity.

[0030] Furthermore, the width of the first tooth 31 is equal to that of the third tooth 33, and the width of the second tooth 32 is greater than that of the first tooth 31 and the third tooth 33; the width of the second tooth 32 is less than the maximum spacing specified between the ear plates on both sides of the excavator boom.

[0031] There are two reinforcing plates 2, which correspond to the positions of the first ear plate groove 41 and the second ear plate groove 42.

[0032] The second tooth 32 is a rectangular structure with the bottom corners cut off. The bottoms of the first tooth 31 and the third tooth 33 are bent outward to facilitate the insertion of the ear plates on both sides of the excavator stick into the first ear plate groove 41 and the second ear plate groove 42, respectively.

[0033] A through hole 5 is provided on the second tooth 32, and the through hole 5 is a rounded rectangle.

[0034] A handheld hole 6 is provided at the center of the top of the rectangular toothed plate 1. The handheld hole 6 is a rounded rectangle, and hanging holes 62 are provided on both sides of the handheld hole 61.

[0035] Example 2:

[0036] This embodiment provides a method for using the excavator boom stick lug verticality and span inspection fixture as described in Embodiment 1. Figure 2 As shown, the process includes: inserting the excavator boom stick ear plate verticality and spacing inspection fixture along the highest point of the boom stick ear plate arc perpendicular to the sealing plate, with the two ear plates located in the first ear plate groove 41 and the second ear plate groove 42 respectively; if the fixture can be smoothly inserted into the ear plate, the verticality and spacing of the ear plate are judged to be qualified; otherwise, they are unqualified and need to be reworked and measured again.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this utility model and for simplifying the description, and are not intended to 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 utility model.

[0038] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fixture for inspecting the verticality and spacing of the boom arm lugs of an excavator, characterized in that, Includes rectangular toothed plates and reinforcing plates; The rectangular toothed plate includes a first tooth, a second tooth, and a third tooth. A first ear plate groove is formed between the first tooth and the second tooth, and a second ear plate groove is formed between the second tooth and the third tooth. The first ear plate groove and the second ear plate groove are used to accommodate the ear plate when performing ear plate perpendicularity and spacing tests. The reinforcing plate has an inverted U-shaped structure and is fixedly connected to the excavator boom stick lug plate verticality and spacing inspection fixture to enhance the overall structural rigidity.

2. The excavator boom stick lug verticality and span inspection fixture according to claim 1, characterized in that, The width of the first tooth is equal to that of the third tooth, and the width of the second tooth is greater than that of the first and third teeth; the width of the second tooth is less than the maximum spacing specified between the lugs on both sides of the excavator boom.

3. The excavator boom stick lug verticality and span inspection fixture according to claim 1, characterized in that, There are two reinforcing plates, corresponding to the positions of the first ear plate groove and the second ear plate groove.

4. The excavator boom stick lug verticality and span inspection fixture according to claim 1, characterized in that, The bottoms of the first and third teeth are bent outwards to facilitate the insertion of the ear plates on both sides of the excavator stick into the first ear plate slot and the second ear plate slot, respectively.

5. The excavator boom stick lug verticality and span inspection fixture according to claim 1 or 4, characterized in that, The second tooth is a rectangular structure with the bottom corners cut off, which is used to facilitate the insertion of the ear plates on both sides of the excavator stick into the first ear plate slot and the second ear plate slot, respectively.

6. The excavator boom stick lug verticality and span inspection fixture according to claim 1, characterized in that, A through hole is formed on the second tooth. The through hole is a rounded rectangle to reduce the amount of material used in manufacturing.

7. The excavator boom stick lug verticality and span inspection fixture according to claim 1, characterized in that, The rectangular toothed plate has a hand-held hole at the top center. The hand-held hole is a rounded rectangle and is used to facilitate the inspection personnel to hold the tool for inspecting the verticality and spacing of the boom arm ear plate of this excavator.

8. The excavator boom stick lug verticality and span inspection fixture according to claim 7, characterized in that, The handheld hole has hanging holes on both sides for suspending the excavator boom stick lugs verticality and spacing inspection fixture, and reducing manufacturing material usage.