Guiding system protection device and working machine

Abstract

The utility model relates to the technical field of operation machinery, and provides a protection device of a guiding system and the operation machinery, the guiding system comprises a sensor and a wire harness, the sensor is connected to a machine arm of the operation machinery, the machine arm comprises arm sections capable of moving relative to each other, and the sensor is used for detecting the accessory postures at the end parts of the arm sections; the wire harness is laid along the arm, and a quick-wear section is formed between the two arm sections close to the accessory; the guide system protection device comprises an anti-collision shell, the anti-collision shell is arranged on the vehicle arm, and at least part of the vulnerable section is located in an inner cavity of the anti-collision shell. According to the arrangement, the damageable section is arranged in the inner cavity of the anti-collision shell, the anti-collision shell can protect the internal damageable section when the damageable section is collided by an external object, the problem that the damageable section is easily collided and damaged is effectively avoided, and reliable operation of the guide system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of operating machinery, and in particular to a protective device for a guidance system and operating machinery. Background Technology

[0002] In some underwater machinery such as bucket dredgers, the guidance system plays an important role. It is mainly used to accurately monitor the position, attitude and movement trajectory of the working attachments (such as buckets) to ensure that they can complete the predetermined excavation tasks efficiently and accurately.

[0003] Due to the long duration and depth of underwater operations, ordinary sensors' waterproof and pressure-resistant ratings are insufficient, leading to malfunctions or damage after water ingress. Sensors with built-in waterproofing are expensive, increasing costs, and are also susceptible to damage from impacts during operation. Therefore, protective enclosures are sometimes used to protect sensors in related technologies.

[0004] However, in practical applications, it has been found that the sensor wiring harness is easily damaged by collisions with external objects near the attachment, and during operation, the vulnerable parts are easily damaged, causing the entire guidance system to malfunction.

[0005] Therefore, how to effectively protect vulnerable parts and ensure the reliable operation of the guidance system is an important issue that urgently needs to be addressed. Utility Model Content

[0006] This utility model provides a protective device and operating machinery for a guidance system, which solves the problem that sensor harnesses are easily damaged by collisions with external objects in the prior art. It can effectively protect the vulnerable sections of the sensor harnesses and ensure the reliable operation of the guidance system.

[0007] This utility model provides a protective device for a guiding system. The guiding system includes a sensor and a wiring harness. The sensor is connected to the arm of a working machine. The arm includes arm segments that can move relative to each other. The sensor is used to detect the attitude of the attachment at the end of the arm segment. The wiring harness is laid along the arm and forms a vulnerable section between the two arm segments near the attachment. The protective device for the guiding system includes a collision protection shell, which is disposed on the arm. At least a portion of the vulnerable section is located in the inner cavity of the collision protection shell.

[0008] According to the protective device of the guidance system provided by this utility model, the anti-collision shell includes:

[0009] The first end is located at one end of the vulnerable section;

[0010] The second end is located at the other end of the vulnerable section;

[0011] The anti-collision plate is located at the bottom of the bending direction of the vulnerable section;

[0012] A protective plate is disposed opposite to the outer wall of the arm and is connected to the first end, the second end and the anti-collision plate to enclose and form the inner cavity of the anti-collision shell.

[0013] According to the present invention, a protective device for a guiding system is provided, wherein the first end and the second end are fixedly connected to the machine arm, and the two ends of the protective plate are detachably fixedly connected to the first end and the second end, respectively.

[0014] According to the present invention, a protective device for a guidance system is provided, wherein the anti-collision housing further includes a connecting plate, the connecting plate being disposed opposite to the outer wall of the arm and having its side connected to the anti-collision plate, and the protective plate being attached to and detachably connected to the connecting plate.

[0015] According to the protective device of the guidance system provided by the present invention, the anti-collision plate has a strip-shaped through hole extending along the length direction of the anti-collision plate on its plate surface.

[0016] According to the present invention, a protective device for a guidance system is provided, wherein the anti-collision housing includes a machine arm and a protective plate;

[0017] The arm is provided with a wire threading channel, and the vulnerable section includes a first part located inside the wire threading channel and a second part located outside the wire threading channel;

[0018] The protective plate is fixedly connected to the machine arm and located at the joint between the vulnerable section and the threading channel, and is used to protect the second part.

[0019] According to the present invention, a protective device for a guiding system is provided, wherein the protective plate includes at least a bottom and two sides;

[0020] The two sides of the protective plate are located on opposite sides of the second part, and the bottom of the protective plate is located at the bottom of the bending direction of the second part.

[0021] According to the present invention, a protective device for a guiding system is provided, wherein the wiring harness includes a short wiring harness and a long wiring harness; one end of the short wiring harness is connected to the sensor, and the other end is detachably connected to the long wiring harness through the wiring harness connector; the vulnerable section is formed in the short wiring harness.

[0022] It also includes a sealing box, the wire harness connector is located inside the sealing box, the sealing box has an inlet on one side for the short wire harness to pass through, and an outlet on the other side for the long wire harness to pass through.

[0023] According to the protective device of the guiding system provided by this utility model, the sealed box includes:

[0024] The sealed box shell has an open inner cavity;

[0025] The sealing box cover fits over the opening of the inner cavity of the sealing box housing.

[0026] According to the protective device of the guiding system provided by this utility model, a second sealing ring is provided between the sealing box shell and the sealing box cover.

[0027] According to the present invention, a protective device for a guiding system further includes a protective box, which is fixedly connected to the machine arm. The sensor is located in the inner cavity of the protective box, and the protective box is provided with a wire outlet for the sensor's wire harness to pass through.

[0028] According to the present invention, a protective device for a guidance system includes a protective box comprising:

[0029] The protective housing has an open inner cavity;

[0030] The protective box cover fits over the opening of the inner cavity of the protective box shell.

[0031] According to the present invention, a protective device for a guiding system is provided, wherein a first sealing ring is provided between the protective box shell and the protective box cover.

[0032] According to the protective device of the guiding system provided by this utility model, the short wire harness is covered with a protective hose; the protective hose forms a sealed wire harness channel between the protective box and the sealing box.

[0033] According to the present invention, a protective device for a guiding system is provided, wherein one end of the protective hose is detachably connected to the outlet of the protective box via a connector, and the other end is detachably connected to the inlet of the sealed box via a connector.

[0034] According to the present invention, a protective device for a guiding system is provided, wherein one end of the protective hose is detachably connected to the outlet of the protective box via a connector, and the other end is detachably connected to the machine arm via a connector and is connected to the wiring channel.

[0035] According to the present invention, a protective device for a guiding system further includes a pipe clamp, and the protective hose is connected to the machine arm through the pipe clamp.

[0036] According to the present invention, a protective device for a guiding system further includes at least one pair of baffles; two of the baffles in each pair are located on opposite sides of the extension direction of the wire harness.

[0037] This utility model also provides a working machine, including a machine arm and a guiding system disposed on the machine arm; the guiding system includes sensors and wiring harnesses;

[0038] It also includes a protective device for the guidance system as described in any one of the preceding claims for protecting the guidance system.

[0039] The protective device and operating machinery of the guidance system provided by this utility model have a problem: because the vulnerable section is closer to the attachment, the vulnerable section is more susceptible to collisions with external objects such as stones during the operation of the attachment, which can easily damage the vulnerable section and affect the normal operation of the entire guidance system. By placing the vulnerable section in the inner cavity of the anti-collision shell, the anti-collision shell can protect the vulnerable section inside when an external object hits it, effectively avoiding the problem of the vulnerable section being easily damaged by collisions and ensuring the reliable operation of the guidance system. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 This is one of the structural schematic diagrams of the protective device of the guidance system provided by this utility model.

[0042] Figure 2 This is the second schematic diagram of the protective device of the guidance system provided by this utility model.

[0043] Figure 3 This is the third schematic diagram of the protective device of the guidance system provided by this utility model.

[0044] Figure 4 This is one of the structural schematic diagrams of the anti-collision shell provided in one embodiment of this utility model.

[0045] Figure 5 This is the second structural schematic diagram of the anti-collision shell provided in one embodiment of this utility model.

[0046] Figure 6 This is one of the structural schematic diagrams of the anti-collision shell provided in another embodiment of this utility model.

[0047] Figure 7 This is the second structural schematic diagram of the anti-collision shell provided in another embodiment of this utility model.

[0048] Figure 8This is a structural schematic diagram of the protective box provided in an embodiment of the present utility model.

[0049] Figure 9 This is a structural schematic diagram of the sealing box body provided in an embodiment of the present utility model.

[0050] Figure 10 This is a schematic diagram of the structure of the protective device of the guidance system provided by this utility model in conjunction with the pile driving hammer.

[0051] Reference numerals:

[0052] 10. Sensor; 11. Wiring harness; 110. Short wiring harness; 111. Long wiring harness; 20. Stick; 21. Rocker arm; 22. Bucket cylinder; 30. First end; 31. Second end; 32. Anti-collision plate; 320. Through hole; 33. Protective plate; 34. Connecting plate; 35. Protective plate; 36. Conduit; 40. Protective box; 400. Protective box housing; 401. Protective box cover; 402. First sealing ring; 50. Baffle; 60. Wiring harness connector; 70. Sealing box; 700. Sealing box housing; 701. Sealing box cover; 702. Second sealing ring; 80. Protective hose; 800. Connector; 801. Pipe clamp; 90. Auxiliary arm; 91. Hammer. Detailed Implementation

[0053] 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 with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0054] To facilitate understanding of the protective device and operating machinery of the guidance system provided by this utility model, its application background is introduced first. In operating machinery such as bucket dredgers, pile hammers, breakers, and rippers, the guidance system can accurately monitor the position, attitude, and movement trajectory of the attachments to ensure that they can complete the predetermined work tasks efficiently and accurately.

[0055] To prevent damage to sensors in the guidance system, protective boxes are sometimes added to protect the sensors in related technologies.

[0056] However, in practical applications, it has been found that the sensor wiring harness is easily damaged by collisions with external objects near the attachment, and during operation, the vulnerable parts are easily damaged, causing the entire guidance system to malfunction.

[0057] To address the aforementioned problems, this utility model provides a protective device and operating machinery for a guidance system, which can effectively protect the vulnerable sections of the sensor wiring harness and ensure the reliable operation of the guidance system.

[0058] The following combination Figures 1 to 10 This invention describes the protective device and operating machinery of the guidance system.

[0059] A protective device for a guidance system is provided to protect the guidance system, which includes a sensor 10 and a wiring harness 11. The sensor 10 is connected to the arm of a working machine, the arm including boom segments capable of moving relative to each other, and the sensor 10 is used to detect the posture of an attachment at the end of the boom segment. The wiring harness 11 is laid along the arm and has a vulnerable section formed between two boom segments near the attachment. The protective device for the guidance system includes a crash shell disposed on the arm, at least a portion of the vulnerable section being located within the cavity of the crash shell.

[0060] In practical applications, because the vulnerable section is closer to the attachment, it is more susceptible to impacts from external objects such as stones during the attachment's operation. This can easily damage the vulnerable section and affect the normal operation of the entire guidance system. By placing the vulnerable section inside the cavity of the anti-collision housing, the anti-collision housing can protect the vulnerable section when an external object impacts it, effectively avoiding the problem of the vulnerable section being easily damaged by collisions and ensuring the reliable operation of the guidance system.

[0061] It is understood that the aforementioned operating machinery includes, but is not limited to, bucket dredgers, pile hammers, breakers, rippers, etc. Any operating machinery that has a multi-section boom and requires the use of a guidance system to monitor the attitude of the attachments can use the protective device of the guidance system provided in this utility model embodiment.

[0062] To facilitate explanation and understanding, the protective devices of the guidance system will be described in detail below using an excavator as an example.

[0063] Reference Figures 1 to 3 The working machinery includes a boom 20, a rocker arm 21, and a bucket cylinder 22. One end of the rocker arm 21 is hinged to the boom 20, and the other end is hinged to the bucket cylinder 22. The sensor 10 is connected to the rocker arm 21, and its wiring harness 11 is laid along the arm formed by the rocker arm 21 and the boom 20. The part from the rocker arm 21 to the side of the boom 20 is a vulnerable part. During operation, this part is easily hit by external objects such as stones. Therefore, the part of the wiring harness 11 of the sensor 10 from the rocker arm 21 to the side of the boom 20 is a vulnerable section. The anti-collision housing mainly protects this part of the wiring harness 11.

[0064] Reference Figures 1 to 5In one embodiment of the present invention, the anti-collision shell includes a first end 30, a second end 31, an anti-collision plate 32, and a protective plate 33; wherein, the first end 30 is located at one end of the vulnerable section, and the second end 31 is located at the other end of the vulnerable section; the anti-collision plate 32 is located at the bottom of the vulnerable section in the bending direction; the protective plate 33 is disposed opposite to the side of the arm and its end and side are respectively connected to the first end 30, the second end 31, and the anti-collision plate 32, thereby enclosing and forming the inner cavity of the anti-collision shell.

[0065] Specifically, the first end 30, the second end 31, the anti-collision plate 32, and the protective plate 35 are all connected to the stick 20 of the working machine. It should be noted that the specific shapes of the first end 30, the second end 31, the anti-collision plate 32, and the protective plate 35, as well as their specific connection positions on the stick 20, can be designed according to actual needs, as long as they do not interfere with the swing of the rocker arm 21.

[0066] The first end 30 and the second end 31 can form protection at the front and rear ends of the vulnerable section. The anti-collision plate 32 can form protection at the bottom of the vulnerable section. The protective plate 33 can form protection on the side of the vulnerable section, thereby effectively preventing external objects from impacting the vulnerable section from all directions and ensuring the protective effect.

[0067] In some alternative embodiments, the first end 30, the second end 31, the anti-collision plate 32, and the protective plate 33 can be integrally formed or separately formed. They can be fixedly connected to the boom 20 by welding or detachably connected to the boom 20 by bolts or other connecting components. The specific configuration can be flexibly made according to actual needs.

[0068] To ensure protective effectiveness and facilitate subsequent maintenance, in one embodiment of this invention, the first end 30, the second end 31, the anti-collision plate 32, and the protective plate 33 are separately configured. The first end 30, the second end 31, and the anti-collision plate 32 are fixedly connected to the boom 20, for example, by welding to improve anti-collision strength, or by bolts or other connecting components for easy replacement. The specific method can be selected according to actual needs. In this embodiment, the first end 30, the second end 31, and the anti-collision plate 32 are all welded to the boom 20. The protective plate 33 is detachably fixed to the first end 30 and the second end 31 by bolts or other connecting components.

[0069] When maintenance of the vulnerable section is required, the protection plate 33 can be removed, exposing the vulnerable section and facilitating maintenance work. When the protection plate 33 needs to be replaced, simply remove the protection plate 33 and replace it with a new one, improving the convenience of maintenance.

[0070] In one embodiment of the present invention, the anti-collision shell further includes a connecting plate 34, which is disposed opposite to the side of the arm and connected to the anti-collision plate 32 on the side. The protective plate 33 is fitted to the connecting plate 34 and is detachably connected.

[0071] The connecting plate 34 provides a connection point for the protective plate 33, enhancing the stability of the connection of the protective plate 33 and improving the anti-collision performance. In addition, the connecting plate 34 can connect the first end 30, the second end 31, the anti-collision plate 32 and the protective plate 33 into a whole, enhancing the overall structural strength of the anti-collision shell and improving the anti-collision performance.

[0072] Specifically, to improve structural strength, the connecting plate 34 and the anti-collision plate 32 are integrally formed. To facilitate the installation and removal of the protective plate 33, the protective plate 33 and the connecting plate 34 can be connected by bolts or other connecting components.

[0073] In one embodiment of this utility model, the anti-collision plate 32 has a strip-shaped through hole 320 extending along the length of the anti-collision plate 32 on its surface. With this arrangement, during the swinging of the rocker arm 21, the bottom of the vulnerable section can bend and pass through the through hole 320, effectively avoiding motion interference; in addition, the through hole 320 can also be used for drainage, preventing impurities from accumulating inside the anti-collision shell.

[0074] Reference Figure 6 and Figure 7 In another embodiment of the present invention, the anti-collision shell includes a machine arm and a protective plate 35; wherein, a wire threading channel is provided inside the machine arm, and the vulnerable section includes a first part located inside the wire threading channel and a second part located outside the wire threading channel; the protective plate 35 is fixedly connected to the machine arm and located at the joint 800 between the vulnerable section and the wire threading channel, and is used to protect the second part.

[0075] Through the above technical solution, the robotic arm can protect the first part in the threading channel, thereby reducing the length of the vulnerable section. The protective plate 35 can concentrate on protecting the second part. The robotic arm and the protective plate 35 work together to reduce the impact of external objects on the vulnerable section.

[0076] In one embodiment of this utility model, the protective plate 35 protrudes from the side of the arm and is used to form protection on the side of the second part; the protective plate 35 includes at least a bottom and two sides; the two sides of the protective plate 35 are respectively located at opposite ends of the second part and are used to form protection at the front and rear ends of the vulnerable section; the bottom of the protective plate 35 is located at the bottom of the bending direction of the second part and is used to form protection at the bottom of the second part, thereby effectively preventing external objects from impacting the second part from all directions and ensuring the protective effect.

[0077] Specifically, the protective plate 35 adopts an arc-shaped plate.

[0078] In one embodiment of this utility model, a conduit 36 ​​is fixedly connected inside the machine arm, thereby forming a wire-passing channel within the machine arm. The conduit 36 ​​can be made of metal or non-metal, depending on actual needs. In this embodiment, the conduit 36 ​​is a steel pipe, which is welded inside the machine arm.

[0079] By adopting the above technical solution, the vulnerable section of the sensor 10 harness 11 can be protected, effectively avoiding the problem that the vulnerable section is easily damaged by collision, and ensuring the reliable operation of the guidance system.

[0080] In one embodiment of this utility model, referring to Figure 6 and Figure 8 The protective device of the guidance system also includes a protective box 40, which is fixedly connected to the boom. The protective box 40 and the boom can be welded together to improve the connection strength and impact resistance. However, when the machinery is mainly used in low-risk conditions and the impact resistance of the protective box 40 is not critical, the protective box 40 and the boom can also be connected using bolts or other connecting components. The sensor 10 is located inside the protective box 40, which has a cable outlet for the sensor 10's wiring harness 11 to pass through. The protective box 40 effectively protects the sensor 10 from impacts by external objects and from water corrosion during underwater operations.

[0081] Specifically, the protective box 40 includes a protective box shell 400 and a protective box cover 401; wherein, the protective box shell 400 is provided with an open inner cavity; the protective box cover 40 closes onto the opening of the inner cavity of the protective box shell 400, so that the inner cavity of the protective box shell 400 is sealed.

[0082] To facilitate subsequent maintenance and replacement of the sensor 10, the cover of the protective box 40 and the housing 400 are detachably and fixedly connected by bolts or other connecting components. To ensure sealing performance, a first sealing ring 402 is provided between the housing 400 and the cover of the protective box 40.

[0083] In one embodiment of this utility model, at least one pair of baffles 50 are fixedly connected to the arm. Two of the baffles 50 in each pair are located on opposite sides of the sensor 10 adjacent to the extension direction of the wire harness 11. The baffles 50 can provide secondary protection for the sensor 10, effectively solving the problem of external objects hitting the sensor 10 from the side.

[0084] Specifically, the baffle 50 is fixedly connected to the rocker arm 21. The baffle 50 and the rocker arm 21 can be welded together to improve the connection strength of the baffle 50 and enhance its impact resistance. The baffle 50 and the rocker arm 21 can also be connected by bolts or other connecting components to facilitate subsequent maintenance and replacement. There can be one pair or more pairs of baffles 50. When there are two or more pairs of baffles 50, adjacent baffles 50 on the same side are arranged at intervals.

[0085] In practical applications, if the vulnerable section of wire harness 11 is damaged, the entire wire harness 11 needs to be replaced, making the repair and replacement of wire harness 11 difficult.

[0086] To solve the above problems, refer to Figure 9 In one embodiment of this utility model, the wiring harness 11 of the sensor 10 includes a short wiring harness 110 and a long wiring harness 111. One end of the short wiring harness 110 is connected to the sensor 10, and the other end is detachably connected to the long wiring harness 111 via a wiring harness connector 60. The vulnerable section is formed in the short wiring harness 110. The protective device of the guiding system also includes a sealing box 70, which is fixedly connected to the machine arm. The sealing box 70 and the machine arm can be fixed by welding to improve the connection strength of the sealing box 70 and enhance its impact resistance. When the operating machinery is mainly used in low-risk working conditions and the impact resistance requirements of the sealing box 70 are not high, the sealing box 70 and the machine arm can also be connected by bolts or other connecting components. The wiring harness connector 60 is located inside the sealing box 70. One side of the sealing box 70 is provided with an inlet for the short wiring harness 110 to pass through, and the other side is provided with an outlet for the long wiring harness 111 to pass through.

[0087] With the above technical solution, when the vulnerable section is damaged and needs to be replaced, the short wire harness 110 and the long wire harness 111 are disconnected from the wire harness connector 60, and then a new short wire harness 110 is replaced and connected to the long wire harness 111 through the wire harness connector 60. The replacement of the short wire harness 110 will not affect the other wire harnesses 11, making the maintenance of the wire harnesses 11 simpler and more convenient.

[0088] Specifically, the wire harness connector 60 can be a plug-in terminal.

[0089] Specifically, the sealing box 70 includes a sealing box housing 700 and a sealing box 70 cover; wherein, the sealing box housing 700 is provided with an open inner cavity; the sealing box 70 cover covers the opening of the inner cavity of the sealing box housing 700.

[0090] To facilitate subsequent maintenance and replacement of the sensor 10, the cover of the sealing box 70 and the housing 700 of the sealing box are detachably and fixedly connected by bolts or other connecting components. To ensure sealing performance, a second sealing ring 702 is provided between the housing 700 of the sealing box and the cover of the sealing box 70.

[0091] In one embodiment of this utility model, a protective hose 80 is provided over the short wire harness 110; the protective hose 80 forms a sealed channel for the wire harness 11 between the protective box 40 and the sealing box 70. The protective hose 80 can further protect the vulnerable section, prevent water from corroding the wire harness 11 during underwater operations, and extend the overall service life of the guidance system.

[0092] In one embodiment of this utility model, when a collision-resistant housing independent of the machine arm and located outside the machine arm is used to protect the vulnerable section, one end of the protective hose 80 is detachably connected to the outlet of the protective box 40 via a connector 800, and the other end is detachably connected to the inlet of the sealing box 70 via a connector 800. When the protective hose 80 is damaged, both ends of the protective hose 80 can be removed from the protective box 40 and the sealing box 70 respectively, and then a new protective hose 80 can be replaced, which improves the convenience of replacing the protective hose 80.

[0093] In another embodiment of this utility model, when the wiring channel inside the machine arm is used to protect the vulnerable section, one end of the protective hose 80 is detachably connected to the outlet of the protective box 40 via a connector 800, and the other end is detachably connected to the machine arm via a connector 800 and communicates with the wiring channel. The protective hose 80 and the wiring channel together form a sealed wiring harness 11 channel located between the protective box 40 and the sealing box 70. When the protective hose 80 is damaged, both ends of the protective hose 80 can be removed from the protective box 40 and the machine arm respectively, and then a new protective hose 80 can be replaced, which improves the convenience of replacing the protective hose 80.

[0094] Specifically, the aforementioned connector 800 can be a threaded connector 800.

[0095] In one embodiment of this utility model, the protective hose 80 is positioned between the protective box 40 and the sealing box 70 by a pipe clamp 801.

[0096] Specifically, at least two pipe clamps 801 are provided. One pipe clamp 801 is located at the outlet of the protective box 40, and the other pipe clamp 801 is located at the inlet of the sealing box 70. The pipe clamps 801 clamp and fix both ends of the protective hose 80 to the machine arm, thereby protecting the connector 800 of the protective hose 80.

[0097] In one embodiment of this utility model, a protective tube can also be fitted over the long wire harness 111 to prevent water from corroding the long wire harness 111 during underwater operations.

[0098] Specifically, the protective tube sleeved on the long wire harness 111 and the outlet of the sealed box 70 are detachably connected via connector 800.

[0099] Specifically, the protective tube fitted over the long wire harness 111 is positioned on the machine arm by a tube clamp 801 to provide protection for the long wire harness 111 and the connector 800 at the outlet of the sealing box 70.

[0100] Of course, the specific location of the vulnerable section of the sensor 10 harness 11 will vary depending on the type of machinery being operated. The specific design can be flexibly adapted to the actual needs.

[0101] In another embodiment of this utility model, referring to Figure 10 When the working machine is a pile driver, the auxiliary arm 90 and the hammer head 91 of the pile driver form a multi-arm structure that can move relative to each other. The sensor 10 is set on the hammer head 91 to detect the attitude of the hammer head 91. The pile driver can also adopt the above-mentioned protective device of the guidance system. The anti-collision shell can be set on the auxiliary arm 90 of the pile driver (not shown in the figure) to protect the vulnerable section of the sensor 10 wiring harness 11. The protective box 40 is fixedly connected to the hammer head 91 to protect the sensor 10. The sealing box 70 is fixedly connected to the auxiliary arm 90 to protect the wiring harness connector 60. The protective box 40 and the sealing box 70 are connected by a protective hose 80 to form a sealed channel for the wiring harness 11.

[0102] It is understandable that different types of operating machinery have different structures, so the specific shape and connection position of each component in the protective device can be adjusted according to actual needs to protect the guiding system while avoiding motion interference.

[0103] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0104] The working machinery provided by this utility model is described below. The working machinery described below and the protective device of the guidance system described above can be referred to in correspondence.

[0105] A working machine includes a boom and a guiding system disposed on the boom; the guiding system includes a sensor 10 and a wiring harness 11; it also includes a protective device for protecting the guiding system provided in any of the above embodiments.

[0106] Specifically, the operating machinery includes, but is not limited to, bucket dredgers, pile hammers, hydraulic breakers, rippers, and other equipment with multi-section booms that require a guidance system to monitor the attachment's posture.

[0107] The protective device and operating machinery of the guidance system provided by this utility model are designed to prevent damage to the vulnerable section from impacts by external objects such as stones during the operation of the attachments, as the vulnerable section is closer to the attachments. This can easily damage the vulnerable section and affect the normal operation of the entire guidance system. By placing the vulnerable section inside the cavity of the anti-collision shell, the anti-collision shell can protect the vulnerable section when an external object impacts it, effectively avoiding the problem of the vulnerable section being easily damaged by collisions and ensuring the reliable operation of the guidance system.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective device for a guidance system, characterized in that, The guidance system includes a sensor (10) and a wiring harness (11). The sensor (10) is connected to the arm of the working machine, the arm including arm segments that can move relative to each other. The sensor (10) is used to detect the attachment posture at the end of the arm segments. The wiring harness (11) is laid along the arm and forms a vulnerable section between the two arm segments near the attachment. The guidance system protection device includes a crash shell disposed on the arm, at least a portion of the vulnerable section being located in the inner cavity of the crash shell.

2. The protective device for the guidance system according to claim 1, characterized in that, The anti-collision housing includes: The first end (30) is located at one end of the vulnerable section; The second end (31) is located at the other end of the vulnerable section; The anti-collision plate (32) is located at the bottom of the bending direction of the vulnerable section; The protective plate (33) is disposed opposite to the outer wall of the arm and is connected to the first end (30), the second end (31) and the anti-collision plate (32) to enclose and form the inner cavity of the anti-collision shell.

3. The protective device for the guidance system according to claim 2, characterized in that, The first end (30) and the second end (31) are fixedly connected to the arm, and the two ends of the protective plate (33) are detachably fixedly connected to the first end (30) and the second end (31) respectively.

4. The protective device for the guidance system according to claim 3, characterized in that, The anti-collision housing also includes a connecting plate (34), which is disposed opposite to the outer wall of the arm and its side is connected to the anti-collision plate (32). The protective plate (33) is attached to the connecting plate (34) and is detachably connected.

5. The protective device for the guidance system according to claim 1, characterized in that, The anti-collision housing includes a boom and a protective plate (35); The arm is provided with a wire threading channel, and the vulnerable section includes a first part located inside the wire threading channel and a second part located outside the wire threading channel; The protective plate (35) is fixedly connected to the machine arm and located at the joint (800) between the vulnerable section and the threading channel, and is used to protect the second part.

6. The protective device for the guidance system according to any one of claims 1 to 5, characterized in that, The wiring harness (11) includes a short wiring harness (110) and a long wiring harness (111); one end of the short wiring harness (110) is connected to the sensor (10), and the other end is detachably connected to the long wiring harness (111) through a wiring harness connector (60); the vulnerable section is formed in the short wiring harness (110). It also includes a sealing box (70), the wire harness connector (60) is located inside the sealing box (70), the sealing box (70) has an inlet on one side for the short wire harness (110) to pass through, and an outlet on the other side for the long wire harness (111) to pass through.

7. The protective device for the guidance system according to claim 6, characterized in that, It also includes a protective box (40), which is fixedly connected to the machine arm. The sensor (10) is located in the inner cavity of the protective box (40). The protective box (40) is provided with a wire outlet for the wire harness (11) of the sensor (10) to pass through.

8. The protective device for the guidance system according to claim 7, characterized in that, The short wire harness (110) is covered with a protective hose (80); the protective hose (80) forms a sealed wire harness (11) channel between the protective box (40) and the sealing box (70).

9. The protective device for the guidance system according to claim 7, characterized in that, It also includes at least one pair of baffles (50); two of the baffles (50) in each pair are located on opposite sides of the extension direction of the wire harness (11).

10. A type of operating machinery, characterized in that, It includes a robotic arm and a guidance system disposed on the robotic arm; the guidance system includes a sensor (10) and a wiring harness (11); It also includes a protective device for the guidance system as described in any one of claims 1-9 for protecting the guidance system.

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