Excavator head rod deformation detection device

By designing an excavator headstock deformation detection device, which utilizes a hydraulic rod and pressure sensor in conjunction with indicator lights, the problem of large errors in manual detection is solved, enabling rapid and accurate detection of excavator headstock deformation and ensuring safety.

CN224080969UActive Publication Date: 2026-04-03SHANDONG HANDONG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Current methods for detecting headstock deformation in excavators rely on manual handheld leveling, which introduces significant errors and makes it impossible to accurately determine the degree of deformation, leading to safety hazards.

Method used

A device for detecting the deformation of an excavator headstock was designed. It uses a hydraulic rod to drive a detection plate to contact the surface of the excavator headstock. Combined with a pressure sensor and an indicator light, the device can quickly determine the deformation and ensure detection accuracy.

Benefits of technology

It enables rapid and accurate determination of whether the excavator headstock has deformed, avoiding the risk of breakage due to errors and improving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an excavator head rod deformation detection device which comprises a machine body, an adjusting plate is connected to the machine body in a sliding mode, a fixing block is fixedly connected to the adjusting plate, a hydraulic rod is fixedly connected to one side of the adjusting plate, a side detection plate is fixedly connected to the movable end of the hydraulic rod, and a detection assembly is arranged on the side detection plate. The excavator head rod detection device has the advantages that the excavator head rod is detected through the detection assembly, the detection precision is ensured, and the situation that the excavator head rod is broken due to the fact that the detection result has large errors is avoided; and dangers are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of deformation detection technology, and more specifically, to a device for detecting deformation of an excavator headstock. Background Technology

[0002] The excavator head boom is the main component that carries the bucket during excavator operation. It connects the bucket to the excavator head for digging, loading, and unloading operations. After prolonged use, the excavator head boom needs to be subjected to deformation testing to ensure it can be used normally and to prevent breakage that could cause danger.

[0003] However, existing technologies have some problems: the current excavator deformation detection is carried out by manually placing a spirit level on the headstock surface for observation. However, manual detection has a large error and cannot accurately determine the degree of excavator headstock deformation. As a result, it cannot guarantee whether the excavator headstock will break during operation, which poses a certain safety hazard. Therefore, we propose an excavator headstock deformation detection device. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for an excavator headstock deformation detection device.

[0005] According to a first aspect of the present invention, an excavator headstock deformation detection device is provided, comprising a body, an adjusting plate slidably connected to the body, a fixing block fixedly connected to the adjusting plate, a hydraulic rod fixedly connected to one side of the adjusting plate, a side detection plate fixedly connected to the movable end of the hydraulic rod, a detection component provided on the side detection plate, an upper detection plate movably connected to the adjusting plate, a detection component provided on the upper detection plate, and a control console fixedly connected to one side of the body.

[0006] Optionally, the machine body is provided with a slide groove, the adjusting plate is slidably connected in the slide groove, a bidirectional lead screw is rotatably connected in the slide groove, the bidirectional lead screw is threadedly connected to the adjusting plate, a first motor is fixedly connected to the machine body, and the bidirectional lead screw is fixedly connected to the output end of the first motor.

[0007] Optionally, the detection assembly includes a detection head, a groove is provided on one side of the side detection plate, the detection head is slidably connected in the groove, and a transmission rod is fixedly connected to the detection head.

[0008] Optionally, the detection assembly further includes a spring, which is sleeved on the transmission rod, with one end of the spring fixedly connected to the inner wall of the groove and the other end of the spring fixedly connected to the detection head.

[0009] Optionally, a pressure sensor is fixedly connected to the inner wall of the groove of the side detection plate, and two sets of indicator lights are fixedly connected to the other side of the side detection plate. Both sets of indicator lights are electrically connected to the pressure sensor.

[0010] Optionally, the adjusting plate is provided with a slide rail, the upper detection plate is slidably connected in the slide rail, a threaded rod is rotatably connected in the slide rail, the threaded rod is threadedly connected to the upper detection plate, a second motor is fixedly connected to the adjusting plate, and the threaded rod is fixedly connected to the output end of the second motor.

[0011] According to one embodiment of this disclosure, the present invention uses a detection component to detect the excavator headstock. After the excavator headstock is fixed by a fixing block, the hydraulic rod extends and retracts, causing the side detection plate to move. This allows the detection head on the side detection plate to contact the surface of the excavator headstock. The detection head is then compressed by the spring, causing the transmission rod to move into the groove. The pressure of the hydraulic rod is constant, resulting in a constant movement distance of the transmission rod. When the excavator headstock is not deformed, the transmission rod applies pressure to the pressure sensor, causing one set of indicator lights to illuminate. When the excavator headstock deforms and bulges outward, the pressure on the pressure sensor increases, illuminating the other set of indicator lights. If it bulges inward, the detection head cannot contact the excavator headstock, and neither set of indicator lights illuminates. The indicator lights allow operators to quickly determine whether the excavator headstock has deformed. Furthermore, feedback from the pressure sensor ensures detection accuracy and prevents large errors in the detection results from causing the excavator headstock to break and resulting in danger.

[0012] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0014] Figure 1 This is a schematic diagram of the overall structure of an excavator headstock deformation detection device in one embodiment;

[0015] Figure 2 This is a cross-sectional view of the excavator headstock deformation detection device in one embodiment;

[0016] Figure 3 This is a cross-sectional view of the adjustment plate of an excavator headstock deformation detection device in one embodiment;

[0017] Figure 4 This is a cross-sectional view of the side detection plate of an excavator headstock deformation detection device in one embodiment.

[0018] The following components are marked in the diagram: 1. Machine body; 2. Adjustment plate; 3. Side detection plate; 4. Detection assembly; 41. Detection head; 42. Transmission rod; 43. Spring; 44. Pressure sensor; 45. Indicator light; 5. Upper detection plate; 6. Control console; 7. Two-way lead screw; 8. First motor; 9. Threaded rod; 10. Second motor; 11. Fixing block; 12. Hydraulic rod. Detailed Implementation

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0020] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0021] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0022] In all the 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 have different values.

[0023] like Figure 1-4 As shown, an excavator headstock deformation detection device includes a body 1, which is rectangular and made of multiple sets of stainless steel plates welded together. The main function of the body 1 is to support the entire device and ensure its stable operation.

[0024] Furthermore, an adjusting plate 2 is slidably connected to the machine body 1, and a fixing block 11 is fixedly connected to the adjusting plate 2. A sliding groove is provided on the machine body 1, and the adjusting plate 2 is slidably connected in the sliding groove. A bidirectional lead screw 7 is rotatably connected in the sliding groove and threadedly connected to the adjusting plate 2. A first motor 8 is fixedly connected to the machine body 1, and the bidirectional lead screw 7 is fixedly connected to the output end of the first motor 8.

[0025] Specifically, the first motor 8 starts and drives the double-acting lead screw 7 to rotate. After the double-acting lead screw 7 rotates, it drives the adjusting plate 2 to move, thereby moving the adjusting plate 2 and then driving the fixing block 11 on the adjusting plate 2 to move, thereby fixing the excavator head rod with the fixing block 11.

[0026] Furthermore, a hydraulic rod 12 is fixedly connected to one side of the adjusting plate 2, and a side detection plate 3 is fixedly connected to the movable end of the hydraulic rod 12. A detection component 4 is provided on the side detection plate 3. The detection component 4 includes a detection head 41. A groove is opened on one side of the side detection plate 3, and the detection head 41 is slidably connected in the groove. A transmission rod 42 is fixedly connected to the detection head 41.

[0027] Furthermore, the detection assembly 4 also includes a spring 43, which is sleeved on the transmission rod 42. One end of the spring 43 is fixedly connected to the inner wall of the groove, and the other end of the spring 43 is fixedly connected to the detection head 41.

[0028] Furthermore, a pressure sensor 44 is fixedly connected to the inner wall of the groove of the side detection plate 3, and two sets of indicator lights 45 are fixedly connected to the other side of the side detection plate 3. Both sets of indicator lights 45 are electrically connected to the pressure sensor 44.

[0029] Specifically, after the fixing block 11 fixes the excavator head rod, the hydraulic rod 12 extends and retracts, causing the side detection plate 3 to move. This allows the detection head 41 on the side detection plate 3 to contact the surface of the excavator head rod. The detection head 41 is then compressed by the spring 43, causing the transmission rod 42 to move into the groove. The pressure of the hydraulic rod 12 is constant, thus ensuring that the transmission rod 42 moves a constant distance. When the excavator head rod is not deformed, the transmission rod 42 applies a certain pressure to the pressure sensor 44, causing one set of indicator lights 45 to light up. When the excavator head rod deforms and protrudes outward, the pressure on the pressure sensor 44 increases, causing the other set of indicator lights 45 to light up. If it is recessed inward, the detection head 41 cannot contact the excavator head rod, and neither set of indicator lights 45 lights up. The indicator lights 45 allow the operator to quickly determine whether the excavator head rod has deformed.

[0030] Furthermore, as a sensing element, the pressure sensor 44 undergoes internal physical changes when subjected to external pressure. These changes are converted into electrical signals. The electrical signals output by the pressure sensor 44 typically pass through a signal processing circuit, which amplifies, filters, or converts them into a signal format suitable for subsequent circuit processing. The processed signal is then compared with a preset threshold. This threshold is set according to actual application requirements and is used to determine whether the current pressure has reached the trigger condition. When the output signal of the pressure sensor 44 reaches or exceeds the preset threshold, the circuit control system triggers a switching action. This switching action typically controls the on / off state of an indicator light 45. The coordination between the pressure sensor 44 and the indicator light 45 is a mature existing technology, which is well understood by those skilled in the art and will not be elaborated upon here.

[0031] Furthermore, an upper detection plate 5 is movably connected to the adjusting plate 2. A slide rail is provided on the adjusting plate 2. The upper detection plate 5 is slidably connected in the slide rail. A threaded rod 9 is rotatably connected in the slide rail. The threaded rod 9 is threadedly connected to the upper detection plate 5. A second motor 10 is fixedly connected to the adjusting plate 2. The threaded rod 9 is fixedly connected to the output end of the second motor 10.

[0032] Specifically, the second motor 10 starts and drives the threaded rod 9 to rotate. After the threaded rod 9 rotates, it will drive the upper detection plate 5, which is threaded to it, to slide in the slide on the adjusting plate 2, so that the device can detect the deformation of excavator head rods of different sizes.

[0033] Furthermore, the upper detection plate 5 is provided with a detection component 4, which is the same as that on the side detection plate 3, and its working principle is also the same.

[0034] A control console 6 is fixedly connected to one side of the main body 1. The control console 6 is equipped with a display screen, control buttons, etc. The main function of the control console 6 is to control the operation of the entire device.

[0035] The aforementioned excavator headstock deformation detection device detects the excavator headstock through the detection component 4. After the fixing block 11 fixes the excavator headstock, the hydraulic rod 12 extends and retracts, causing the side detection plate 3 to move. This allows the detection head 41 on the side detection plate 3 to contact the surface of the excavator headstock. The detection head 41 then compresses the spring 43, causing the transmission rod 42 to move into the groove. The pressure of the hydraulic rod 12 is constant, thus ensuring a constant movement distance of the transmission rod 42. When the excavator headstock is not deformed, the transmission rod 42 provides pressure to the pressure sensor 44. A certain pressure causes one set of indicator lights 45 to light up. When the excavator headstock deforms and bulges outward, the pressure on the pressure sensor 44 increases, causing the other set of indicator lights 45 to light up. If it bulges inward, the detection head 41 cannot contact the excavator headstock, and neither set of indicator lights 45 lights up. The indicator lights 45 allow the operator to quickly determine whether the excavator headstock has deformed. The feedback from the pressure sensor 44 ensures the accuracy of the detection and prevents the excavator headstock from breaking due to increased error in the detection results, which could lead to danger.

[0036] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A device for detecting deformation of a head rod of an excavator, comprising a body (1), characterized in that: The body (1) is slidably connected with an adjusting plate (2), the adjusting plate (2) is fixedly connected with a fixed block (11), one side of the adjusting plate (2) is fixedly connected with a hydraulic rod (12), the movable end of the hydraulic rod (12) is fixedly connected with a side detection plate (3), the side detection plate (3) is provided with a detection assembly (4), the adjusting plate (2) is movably connected with an upper detection plate (5), the upper detection plate (5) is provided with a detection assembly (4), and the body (1) is fixedly connected with a control console (6).

2. The stick shape change detecting device for a head of an excavator according to claim 1, characterized in that: The body (1) is slidably connected with an adjusting plate (2), the adjusting plate (2) is fixedly connected with a fixed block (11), one side of the adjusting plate (2) is fixedly connected with a hydraulic rod (12), the movable end of the hydraulic rod (12) is fixedly connected with a side detection plate (3), the side detection plate (3) is provided with a detection assembly (4), the adjusting plate (2) is movably connected with an upper detection plate (5), the upper detection plate (5) is provided with a detection assembly (4), and the body (1) is fixedly connected with a control console (6).

3. The stick shape change detecting device for a head of an excavator according to claim 1, characterized in that: The detection assembly (4) comprises a detection head (41), one side of the side detection plate (3) is provided with a groove, the detection head (41) is slidably connected in the groove, and the detection head (41) is fixedly connected with a transmission rod (42).

4. A stick shape change detecting device for a head of an excavator according to claim 3, characterized in that: The detection assembly (4) further comprises a spring (43), the spring (43) is sleeved on the transmission rod (42), one end of the spring (43) is fixedly connected with the inner wall of the groove, and the other end of the spring (43) is fixedly connected with the detection head (41).

5. The stick shape change detecting device of the excavator head according to claim 3, characterized in that: The side detection plate (3) is fixedly connected with a pressure sensor (44) on the inner wall of the groove, and the other side of the side detection plate (3) is fixedly connected with two groups of indicator lights (45), and the two groups of indicator lights (45) are electrically connected with the pressure sensor (44).

6. The stick shape change detecting device of the excavator head according to claim 1, characterized in that: The adjusting plate (2) is provided with a slide, the upper detection plate (5) is slidably connected in the slide, the slide is rotatably connected with a threaded rod (9), the threaded rod (9) is threadedly connected with the upper detection plate (5), the adjusting plate (2) is fixedly connected with a second motor (10), and the threaded rod (9) is fixedly connected with the output end of the second motor (10).