Bucket arm structure and insulating bucket arm vehicle

Abstract

The utility model relates to the field of lifting devices used on vehicles, in particular to a bucket arm structure and an insulating bucket arm vehicle. The bucket arm structure and the insulated bucket arm vehicle are used for solving the problems that in an existing bucket arm structure, the direction of a load transmitted to a torque sensor is inconsistent with the connecting direction of the tail end of a cantilever and a working platform, and deflection torque is likely to be generated to influence the precision of the torque sensor. The bucket arm structure comprises a cantilever and a working bucket, the tail end of the cantilever and the side wall of the working bucket are provided with a switching support and provided with a torque sensor through the switching support, the torque sensor is connected with the switching support through the two opposite side faces of the torque sensor, one of the two opposite side faces faces the tail end of the cantilever, and the other one faces the working bucket. And the connecting direction of the torque sensor and the adapter bracket is consistent with the connecting line of the tail end of the cantilever and the working bucket. The load is transmitted to the torque sensor along the connecting line direction of the tail end of the cantilever and the working bucket, so that deflection torque is avoided, and the measurement precision and stability of the torque sensor are improved.

Description

Technical Field

[0001] The utility model relates to the field of a lifting device used on a vehicle, in particular to a bucket arm structure and an insulating bucket arm vehicle. Background Art

[0002] Insulated boom trucks are a common type of engineering machinery and equipment, mainly used for insulation operations at heights, such as the maintenance and installation of power lines. Insulated boom trucks are often equipped with a retractable boom covered with insulating material. An insulated work platform is provided at the end of the boom for operators to stand or carry materials. At the same time, the rated load weight must be specified during the design and manufacture of the insulated boom truck. When the platform is overloaded, emergencies are prone to occur, resulting in safety hazards. In this context, it is particularly important to accurately monitor its load status. For example, the Chinese invention patent with authorization announcement number CN107010576B discloses a crane mechanism with a load detection device, which has a working platform and a cantilever for moving the working platform. Force sensors are installed between the working platform and the cantilever to detect the torque between the two for load monitoring. A first flange is provided on the side of the working platform, and a second flange is provided at the end of the cantilever. The two flanges are configured through angle plates so that the flanges can be laterally connected to the force sensor from the side by bolts. Because the flanges at the working platform and the end of the cantilever are connected to the force sensor from the side, the load between the working platform and the end of the cantilever is transferred to the force sensor from the side. The direction of force transfer is perpendicular to the connection direction between the end of the cantilever and the working platform. In this way, a deflection torque is generated between the end of the cantilever and the working platform around the connecting line between the two, resulting in inaccurate detection of the force sensor, which affects the accuracy of the force sensor in load monitoring. Utility Model Content

[0003] The purpose of the present invention is to provide a boom structure to solve the problem that the load direction transmitted to the torque sensor in the boom structure of the prior art is inconsistent with the connection direction between the boom end and the work platform, which easily causes skew torque to affect the monitoring accuracy of the force sensor. The purpose of the present invention is also to provide an insulated boom vehicle to solve the problem that the load direction transmitted to the torque sensor in the boom structure of the prior art is inconsistent with the connection direction between the boom end and the work platform, which easily causes skew torque to affect the monitoring accuracy of the force sensor.

[0004] Based on the above technical problems, a bucket arm structure of the utility model includes a cantilever and a working bucket, a first adapter bracket is installed at the end of the cantilever, and a second adapter bracket is installed on the side wall of the working bucket. A torque sensor is installed between the end of the cantilever and the side wall of the working bucket through the first adapter bracket and the second adapter bracket to monitor the load of the working bucket. The torque sensor is respectively connected to the first adapter bracket and the second adapter bracket through its two opposite side surfaces, and one of the two opposite side surfaces faces the cantilever end and the other faces the working bucket, so that the connection direction of the torque sensor and the first adapter bracket and the second adapter bracket is consistent with the connecting line between the cantilever end and the working bucket.

[0005] The utility model improves the problem that the load direction transmitted to the torque sensor in the bucket arm structure of the prior art is inconsistent with the connection direction between the cantilever end and the working platform, which easily generates a skew torque that affects the monitoring accuracy of the force sensor. The utility model connects the adapter bracket at the cantilever end and the adapter bracket on the side wall of the working bucket with the two opposite side surfaces of the torque sensor. One of the two opposite side surfaces of the torque sensor faces the cantilever end, and the other faces the working bucket, so that the load is transmitted to the torque sensor along the connection direction of the cantilever end and the working bucket, avoiding the generation of skew torque and improving the measurement accuracy and stability of the torque sensor.

[0006] Furthermore, a pair of connecting ribs are provided on the side walls of the working bucket, and the second adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The two relatively parallel sides are respectively fitted and connected to the connecting ribs on the side walls of the working bucket, and the torque sensor is connected to the outer side of the bottom edge of the second adapter bracket.

[0007] Furthermore, the pair of connecting ribs extend in the up-down direction and are arranged opposite to each other in the left-right direction.

[0008] Furthermore, the first adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The torque sensor is connected to the bottom edge of the first adapter bracket and is located on the inner side of the U-shaped bracket. The outer side of the bottom edge of the first adapter bracket is provided with a cantilever connection structure for connecting to the cantilever.

[0009] The U-shaped bracket of the first adapter bracket extends in a vertical direction.

[0010] Correspondingly, the second aspect of the embodiment of the utility model provides an insulated bucket arm vehicle including a vehicle body, a power supply module and a control module, a bucket arm structure is installed on the vehicle body, the bucket arm structure includes a cantilever and a working bucket, a first adapter bracket is installed at the end of the cantilever, and a second adapter bracket is installed on the side wall of the working bucket, and a torque sensor is installed between the end of the cantilever and the side wall of the working bucket through the first adapter bracket and the second adapter bracket to monitor the load of the working bucket, the power supply module and the control module are both connected to the torque sensor, and the torque sensor is respectively connected to the first adapter bracket and the second adapter bracket through its two opposite side surfaces, and one of the two opposite side surfaces is facing the end of the cantilever and the other is facing the working bucket, so that the connection direction of the torque sensor and the first adapter bracket and the second adapter bracket is consistent with the connection line between the end of the cantilever and the working bucket.

[0011] The utility model improves the problem that the load direction transmitted to the torque sensor in the bucket arm structure of the prior art is inconsistent with the connection direction between the cantilever end and the working platform, which easily generates a skew torque that affects the monitoring accuracy of the force sensor. The utility model connects the adapter bracket at the cantilever end and the adapter bracket on the side wall of the working bucket with the two opposite side surfaces of the torque sensor. One of the two opposite side surfaces of the torque sensor faces the cantilever end, and the other faces the working bucket, so that the load is transmitted to the torque sensor along the connection direction of the cantilever end and the working bucket, avoiding the generation of skew torque and improving the measurement accuracy and stability of the torque sensor.

[0012] Furthermore, a pair of connecting ribs are provided on the side walls of the working bucket, and the second adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The two relatively parallel sides are respectively fitted and connected to the connecting ribs on the side walls of the working bucket, and the torque sensor is connected to the outer side of the bottom edge of the second adapter bracket.

[0013] Furthermore, the pair of connecting ribs extend in the up-down direction and are arranged opposite to each other in the left-right direction.

[0014] Furthermore, the first adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The torque sensor is connected to the bottom edge of the first adapter bracket and is located on the inner side of the U-shaped bracket. The outer side of the bottom edge of the first adapter bracket is provided with a cantilever connection structure for connecting to the cantilever.

[0015] Furthermore, the U-shaped bracket of the first adapter bracket extends in a vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional exploded view of the working bucket, second adapter bracket, torque sensor, and first adapter bracket of a bucket arm structure of the utility model;

[0017] Figure 2This is a structural diagram of the installation of a working bucket, a second adapter bracket, a torque sensor, and a first adapter bracket of a bucket arm structure of the utility model;

[0018] Figure 3 The utility model is a structural schematic diagram of a load display device of an insulated bucket arm truck.

[0019] In the figure: 1. Working bucket, 2. First adapter bracket, 3. Second adapter bracket, 4. Bolt, 5. Torque sensor, 6. Rib plate, 7. U-shaped bracket, 8. Cantilever connection structure, 9. Mounting hole, 10. Connection hole, 11. Load display device, 12. Load display panel, 13. Critical value adjustment button, 14. Normal green light, 15. Alarm red light, 16. Start button, 17 Shutdown button, 18. Current display panel. DETAILED DESCRIPTION

[0020] The prior art discloses a crane with a load detection device. The crane comprises a work platform and a boom for moving the work platform. Adapter brackets are provided on the side of the work platform and at the end of the boom. A force sensor is mounted between the adapter brackets for load monitoring. The adapter bracket is a flange configured via an angle plate, and the flange is laterally connected to the force sensor via bolts. Because the flanges of the work platform and the boom end are laterally connected to the force sensor, the load between the work platform and the boom end is laterally transferred to the force sensor in a direction perpendicular to the connection between the boom end and the work platform. This generates a deflection torque around the line connecting the boom end and the work platform, resulting in inaccurate force sensor detection and affecting the accuracy of the force sensor in load monitoring.

[0021] The present invention proposes an improved technical solution to the problems existing in the above-mentioned technical solution. The core concept of the present invention is: the adapter bracket at the end of the cantilever and the adapter bracket on the side wall of the working bucket are connected to the two opposite side surfaces of the torque sensor, one of the two opposite side surfaces of the torque sensor faces the end of the cantilever and the other faces the working bucket, so that the transmission direction of the load force is transmitted to the torque sensor along the connecting direction of the cantilever end and the working bucket, thereby avoiding the generation of deflection torque and improving the measurement accuracy and stability of the torque sensor.

[0022] Based on the above utility model concept, the utility model has an insulated bucket arm vehicle with a vehicle body, a power supply module and a control module. The bucket arm structure is installed on the vehicle body. The bucket arm structure has a cantilever and a Figure 1The working bucket 1 shown has a first adapter bracket 2 mounted on the end of the boom, and a second adapter bracket 3 mounted on the side wall of the working bucket 1. A torque sensor 5 is mounted between the boom and the side wall of the working bucket 1 via the first adapter bracket 2 and the second adapter bracket 3 to monitor the load of the working bucket 1. Because the torque sensor 5 has the advantages of high precision and strong anti-interference ability, monitoring the real-time torque through the torque sensor 5 can accurately monitor the load of the insulated boom truck, ensuring operational safety and efficiency. The torque sensor 5 is connected to the first adapter bracket 2 and the second adapter bracket 3 through its two opposing side surfaces, with one of the two opposing side surfaces facing the boom end and the other facing the working bucket 1. This ensures that the connection direction of the torque sensor to the first adapter bracket 2 and the second adapter bracket 3 is consistent with the connection line between the boom end and the working bucket, allowing the load force to be more directly transmitted to the torque sensor 5, improving the measurement accuracy and stability of the torque sensor 5. Among them, the power supply module is connected to the torque sensor 5 to power the torque sensor 5, and the control module is connected to the torque sensor 5 to achieve real-time monitoring and feedback of the working bucket load. The control module includes a signal converter connected to the torque sensor 5 to ensure that the analog signal output by the torque sensor 5 can be accurately read and processed. The analog signal output by the torque sensor 5 is converted into a signal by the following method: Figure 3 The current display panel 18 of the load display device 11 shown shows that the signal converter converts the analog signal into data within a certain load range, such as mass data of 0-550kg, and displays the data through the load display panel 12 of the load display device 11. The load display device 11 also has a critical value adjustment button 13, a start button 16, an off button 17, a normal green light 14, and an alarm red light 15. The critical value adjustment button 13 can be used to set the critical load. When the load of the working bucket 1 exceeds the critical value, the alarm red light 15 lights up. When the load of the working bucket 1 does not exceed the critical load, the normal green light 14 lights up. By using the load display device 11, the real-time load of the bucket arm structure can be monitored. The load display device 11 of this embodiment is placed on the body of the insulated bucket arm truck to facilitate reading the data of the load display panel 12 during work. In addition, in other embodiments, to meet needs, the load display device 11 can also be placed on the side wall of the working bucket or the boom. At the same time, the signal converter is connected to the monitoring system to ensure that the real-time monitoring data can be accurately transmitted and displayed. The monitoring system is connected to the control system of the insulated boom truck to realize real-time monitoring and feedback of the load status. This setting can ensure that the insulated boom truck operates within the rated load range, reduce equipment damage and personal injury risks caused by overloading, and help operators reasonably arrange work tasks and material handling weight.

[0023] In this embodiment, the side wall of the working bucket 1 is provided with Figure 2The pair of connecting ribs 6 shown, the second adapter bracket 3 is a U-shaped bracket including two relatively parallel sides and a bottom edge, the two relatively parallel sides are respectively fitted and connected to the connecting ribs 6 on the side wall of the working bucket, and the torque sensor 5 is connected to the outer side of the bottom edge of the second adapter bracket 3, that is, the end away from the parallel side of the U-shaped bracket. The connection of the connecting ribs 6 and the second adapter bracket 3 can enhance the bearing capacity and structural stability of the side wall of the working bucket 1, so that the working bucket 1 forms a stable whole when connected to the second adapter bracket 3, preventing the shaking of the bucket arm structure, and effectively preventing the deformation or damage of the side wall of the working bucket when bearing a large load. The second adapter bracket 3 is designed to include two relatively parallel sides and a bottom edge. Symmetrical mounting holes 9 are set on the bottom edge of the second adapter bracket 3. Bolts 4 are passed through the mounting holes 9 to connect to the torque sensor 5, ensuring the installation strength with the torque sensor 5. The two relatively parallel sides of the second adapter bracket 3 are fitted with the connecting rib 6 on the side wall of the working bucket. The connecting rib 6 is provided with a connecting hole 10. The bolt 4 passes through the connecting hole 10 of the connecting rib to connect to the second adapter bracket 3, thereby ensuring the connection strength. In addition, in other embodiments, the second adapter bracket can be a solid structure, such as a cubic adapter bracket. The cubic adapter bracket is adapted to the connecting rib and can be installed on the inner side of the connecting rib to fit the connecting rib. The bolt is connected to the cubic adapter bracket through the connecting hole of the rib. The cubic adapter bracket is provided with a mounting hole in the direction of the line connecting the working bucket and the end of the cantilever. The bolt is connected to the torque sensor through the mounting hole. Of course, the second adapter bracket can also be set as a connecting flange, which is directly installed on the side wall of the working bucket and connected to the torque sensor by bolts. It is only necessary to ensure that the connection direction between the torque sensor and the second adapter bracket is consistent with the line connecting the end of the cantilever and the working bucket.

[0024] In this embodiment, the pair of connecting ribs 6 extend vertically and are positioned opposite each other in the left-right direction. This arrangement creates a gap between the second adapter bracket 3 and the sidewall of the work bucket 1, allowing for easy tightening of the bolts 4 at the point where the second adapter bracket 1 and the torque sensor 5 are bolted together. This simplifies the assembly process, improves work efficiency, and enhances the flexibility and maintainability of the structure.

[0025] In this embodiment, the first adapter bracket 2 is a U-shaped bracket 7 comprising two relatively parallel sides and a bottom edge. The torque sensor 5 is connected to the bottom edge of the first adapter bracket 2. Symmetrical mounting holes 9 are provided on the bottom edge of the U-shaped bracket 7 of the first adapter bracket 3. Bolts 4 pass through the mounting holes 9 and connect to the torque sensor 5, ensuring strong mounting to the torque sensor 5. The torque sensor 5 is located on the inner side of the U-shaped bracket. The use of the U-shaped bracket 7 and the installation of the torque sensor on the inner side of the U-shaped bracket make the connection between the torque sensor 5 and the cantilever more compact, saving connection space, reducing the torque arm, and reducing the torque generated under the same load conditions. This improves the safety of the equipment and also enhances the sensitivity and accuracy of the torque sensor 5. A cantilever connection structure 8 for connecting to the cantilever is provided on the outer side of the bottom edge of the first adapter bracket 2. The cantilever connection structure 8 includes two parallel crank arm plates at the connection with the cantilever. The arrangement of the crank arm provides stronger support and stability, improving the strength of the connection between the first adapter bracket 2 and the cantilever. The middle part of the two parallel crank arm panels is hollow to form an avoidance structure for the cantilever to pass through. The two parallel crank arm panels are provided with arm connection holes. The crank arm connection part is connected to the cantilever through a pin shaft. By providing the avoidance structure, the cantilever can pass through the avoidance structure and connect to the crank arm connection part, ensuring a firm connection between the two. At the same time, it saves space, makes the structure more compact, is conducive to achieving efficient spatial layout, simplifies the assembly process, improves assembly efficiency, and makes the installation and disassembly of the two simple and efficient. In this embodiment, a hollow part is provided between the U-shaped bracket 7 of the first adapter bracket and the cantilever connection structure 8 to facilitate the bolt 4 to pass through the mounting hole 9 on the first adapter bracket 2 from the hollow part to connect with the torque sensor 5. By providing the hollow part, it is ensured that the bolt 4 can easily pass through the U-shaped connection part 7 to connect to the torque sensor 5, and provides sufficient space for tightening the bolt 4, which simplifies the assembly process, improves work efficiency, and enhances the flexibility and maintainability of the structure. In addition, in other embodiments, the first adapter bracket can be configured to be fixedly connected to a connecting flange at the end of the cantilever, and connected to the torque sensor through the connecting flange, and the cantilever is provided with an avoidance hole at a position corresponding to the connection between the connecting flange and the torque sensor, so that the bolts can be connected to the torque sensor through the mounting hole, thereby ensuring the installation strength and satisfying that the connection direction of the first adapter bracket and the torque sensor is consistent with the connection line between the cantilever end and the working bucket.

[0026] In this embodiment, the U-shaped bracket 7 of the first adapter bracket 2 extends vertically. This allows the first adapter bracket 2 to constrain deformation of the side of the torque sensor 5, limiting deformation to the direction of the load. This prevents deflection of the torque sensor relative to the connection between the boom end and the work platform, ensuring torque sensing accuracy. Furthermore, in other embodiments, the U-shaped bracket of the first adapter bracket can also extend horizontally to meet specific needs.

[0027] In addition, the second aspect of the embodiment of the utility model also provides a bucket arm structure. Since the bucket arm structure adopts the bucket arm structure described in the embodiment of the insulated bucket arm vehicle, it has all the beneficial effects of the bucket arm structure, which will not be described here one by one.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A bucket arm structure, comprising a cantilever and a working bucket, wherein a first adapter bracket is installed at the end of the cantilever, a second adapter bracket is installed on the side wall of the working bucket, and a torque sensor is installed between the end of the cantilever and the side wall of the working bucket through the first adapter bracket and the second adapter bracket to monitor the load of the working bucket, characterized in that: The torque sensor is connected to the first adapter bracket and the second adapter bracket respectively through its two opposite side surfaces, and one of the two opposite side surfaces faces the end of the cantilever and the other faces the working bucket, so that the connection direction of the torque sensor and the first adapter bracket and the second adapter bracket is consistent with the connecting line between the end of the cantilever and the working bucket.

2. The bucket arm structure according to claim 1, characterized in that: A pair of connecting ribs are arranged on the side wall of the working bucket. The second adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The two relatively parallel sides are respectively fitted and connected to the connecting ribs on the side wall of the working bucket. The torque sensor is connected to the outer side of the bottom edge of the second adapter bracket.

3. The bucket arm structure according to claim 2, characterized in that: The pair of connecting ribs extend in the up-down direction and are arranged opposite to each other in the left-right direction.

4. The bucket arm structure according to claim 3, characterized in that: The first adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The torque sensor is connected to the bottom edge of the first adapter bracket and is located on the inner side of the U-shaped bracket. A cantilever connection structure for connecting to the cantilever is provided on the outer side of the bottom edge of the first adapter bracket.

5. The bucket arm structure according to claim 4, characterized in that: The U-shaped bracket of the first adapter bracket extends in a vertical direction.

6. An insulated bucket arm vehicle, comprising a vehicle body, a power supply module and a control module, a bucket arm structure is installed on the vehicle body, the bucket arm structure comprises a cantilever and a working bucket, a first adapter bracket is installed at the end of the cantilever, a second adapter bracket is installed on the side wall of the working bucket, a torque sensor is installed between the end of the cantilever and the side wall of the working bucket through the first adapter bracket and the second adapter bracket to monitor the load of the working bucket, the power supply module and the control module are both connected to the torque sensor, characterized in that: The torque sensor is connected to the first adapter bracket and the second adapter bracket respectively through its two opposite side surfaces, and one of the two opposite side surfaces faces the end of the cantilever and the other faces the working bucket, so that the connection direction of the torque sensor and the first adapter bracket and the second adapter bracket is consistent with the connecting line between the end of the cantilever and the working bucket.

7. The insulated boom truck according to claim 6, characterized in that: A pair of connecting ribs are arranged on the side wall of the working bucket. The second adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The two relatively parallel sides are respectively fitted and connected to the connecting ribs on the side wall of the working bucket. The torque sensor is connected to the outer side of the bottom edge of the second adapter bracket.

8. The insulated bucket truck according to claim 7, characterized in that: The pair of connecting ribs extend in the up-down direction and are arranged opposite to each other in the left-right direction.

9. The insulated boom truck according to claim 8, characterized in that: The first adapter bracket is a U-shaped bracket including two relatively parallel sides and a bottom edge. The torque sensor is connected to the bottom edge of the first adapter bracket and is located on the inner side of the U-shaped bracket. A cantilever connection structure for connecting to the cantilever is provided on the outer side of the bottom edge of the first adapter bracket.

10. The insulated boom truck according to claim 9, characterized in that: The U-shaped bracket of the first adapter bracket extends in a vertical direction.

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