An excavator for harsh working conditions with auxiliary control structure

Abstract

The present invention relates to the technical field of excavators, and specifically to an excavator for harsh working conditions with an auxiliary control structure, comprising a cab, wherein two joysticks are installed in the cab; further comprising a first control device and a fixing device, wherein the first control device comprises two auxiliary control components, and the fixing device comprises a first support frame, a second support frame, and more than one support rod components, wherein the first support frame and the second support frame are detachably installed in the cab, and the first support frame and the second support frame are slidably matched and enclosed to form a receiving space for installing the auxiliary control components; the two auxiliary control components are detachably installed in the receiving space and are located at two joysticks in a one-to-one correspondence; the support rod components are respectively connected to the first support frame and the second support frame, and suction cups are respectively connected to the two ends of the support rod components, and the support rod components abut against the inner wall of the cab through the suction cups; the present invention has the advantages of quick installation and precise driving of the joystick.

Description

Technical Field

[0001] The present invention relates to the technical field of excavators, and in particular to an excavator for harsh working conditions with an auxiliary control structure. Background Art

[0002] An excavator, also known as an excavation machine or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into a transport vehicle or unload them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of engineering machinery in recent years, the development of excavators has been relatively fast, and excavators have become one of the most important engineering machinery in engineering construction. When working in some muddy, wetland, mine and other harsh working conditions, there are often vibrations, high temperatures, dust and other working conditions, which pose some dangers to operators.

[0003] To this end, Chinese patent CN202121466108.1 discloses an auxiliary controller and an excavator with the auxiliary controller, which are provided with a push rod drive, an operating lever drive and a pedal drive; the push rod is driven by the push rod drive, the operating lever drive operates the push rod, and the pedal drive drives the breaker pedal to realize the construction control of the excavator, thereby replacing the construction personnel in the cab to control the excavator operation, realizing unmanned driving, and ensuring the life safety of the construction personnel. Summary of the invention

[0004] Purpose of the invention: The applicant has found that the auxiliary controller disclosed in Chinese patent CN202121466108.1 and the excavator with the auxiliary controller are relatively complicated to install, and two electric push rods are required to cooperate to drive the joystick to swing. There are high requirements for the driving stroke and telescopic speed of the electric push rods, and the calculation of the driving stroke is complex and the driving accuracy is poor. The problem to be solved by the present invention is to provide an excavator for harsh working conditions with an auxiliary control structure in view of the deficiencies in the prior art, which can realize the functions of quick installation and precise driving of the joystick.

[0005] In order to solve the above technical problems, the present invention provides an excavator for harsh working conditions with an auxiliary control structure, including a cab, and two joysticks are installed in the cab; it is characterized in that it also includes a first control device and a fixing device, the first control device includes two auxiliary control components, the fixing device includes a first support frame, a second support frame, and one or more support rod components, the first support frame and the second support frame are detachably installed in the cab, the first support frame and the second support frame are slidably matched and enclosed to form a accommodating space for installing the auxiliary control components; the two auxiliary control components are detachably installed in the accommodating space and are located at the two joysticks one by one; the support rod components are respectively connected to the first support frame and the second support frame, and the two ends of the support rod components are respectively connected to suction cups, and the support rod components are abutted against the inner wall of the cab through the suction cups.

[0006] Preferably, the auxiliary control component includes a first mounting frame, a second mounting frame, a slider and a positioning pin mounted on the outside of the joystick, the first mounting frame is slidably mounted on the first support frame, the second mounting frame is slidably mounted on the first mounting frame, the slider is slidably mounted on the second mounting frame, the positioning pin is detachably mounted on the first support frame, and the positioning pin slides with the first mounting frame; the auxiliary control component also includes a first driving component, the first driving component includes a first electromagnetic element for driving the second mounting frame to slide along the first mounting frame and a second electromagnetic element for driving the slider to slide along the second mounting frame, the first electromagnetic element is fixedly mounted on the first mounting frame, and the second electromagnetic element is fixedly mounted on the second mounting frame.

[0007] Preferably, the auxiliary control component also includes a reset component, which includes one or more first elastic members arranged opposite to each other and one or more second elastic members arranged opposite to each other, wherein the two ends of the first elastic member are respectively fixedly connected to the first mounting frame and the second mounting frame, and the two ends of the second elastic member are respectively fixedly connected to the second mounting frame and the slider.

[0008] Preferably, the second mounting frame includes two first matching pieces connected by head-to-tail buckles, an arc-shaped clamping block, a third elastic piece and a pressing piece, the arc-shaped clamping block is slidably mounted on the first matching piece, the two ends of the third elastic piece are respectively fixedly connected to the first matching piece and the arc-shaped clamping block, and the pressing piece is slidably mounted on the first matching piece. The two first matching pieces are respectively connected to the first mounting frame along the length direction of the first mounting frame through the first elastic piece, and at least one first matching piece is connected to the slider along another direction perpendicular to the length direction of the first mounting frame through the second elastic piece.

[0009] Preferably, the slider includes a second mating piece and a third mating piece spliced ​​end to end with the second mating piece, a connecting pin and a socket adapted to the connecting pin are provided on the splicing surface, and the second mating piece and the third mating piece are spliced ​​by the connecting pin and the socket; the second mating piece is slidably connected to one first mating piece, and the third mating piece is slidably connected to another first mating piece.

[0010] Preferably, the support rod assembly includes a first main rod, a second main rod, a first threaded sleeve, a first limiting rod and a second limiting rod, the first support frame is connected to the side wall of the first main rod, and the second support frame is connected to the side wall of the second main rod; the first main rod and the second main rod are both provided with threads, one end of the first main rod and one end of the second main rod are respectively fixedly connected to corresponding suction cups, and the other end of the first main rod is threadedly connected to one end of the first threaded sleeve; the other end of the second main rod is threadedly connected to the other end of the first threaded sleeve; one end of the first limiting rod is fixedly connected to the other end of the first main rod, one end of the second limiting rod is fixedly connected to the other end of the second main rod, and the other end of the first limiting rod and the other end of the second limiting rod are slidably matched.

[0011] Preferably, the fixing device also includes a second adjustment component whose number is adapted to the number of the support rod components, and the second adjustment component includes a first sub-rod, a second sub-rod and two second threaded sleeves, the first sub-rod is slidably matched with the first main rod, and the second sub-rod is slidably matched with the second main rod, one end of the first sub-rod and one end of the second sub-rod are respectively fixedly connected to corresponding suction cups, and the other end of the first sub-rod and the other end of the second sub-rod are respectively sleeved in a second threaded sleeve; the first main rod is threadedly connected to one of the second threaded sleeves, and the second main rod is threadedly connected to the other second threaded sleeve.

[0012] Preferably, the fixing device also includes a second connecting assembly, which includes a first connecting rod and a second connecting rod, wherein both ends of the first connecting rod are respectively hinged to the first main rod and the first support frame, and both ends of the second connecting rod are respectively hinged to the second main rod and the second support frame.

[0013] Preferably, it also includes a second control device and a travel pedal, the travel pedal is fixedly installed inside the cab, the second control device includes a third mounting frame, a rotating shaft, an adjustment block located above the travel pedal and a second drive assembly, the third mounting frame is fixedly installed inside the cab, the rotating shaft is rotatably sleeved on the third mounting frame, the adjustment block is fixedly connected to the rotating shaft, and the driving end of the second drive assembly is transmission-connected to the rotating shaft.

[0014] Preferably, the second drive assembly includes a worm wheel, a worm and a rotary driver, the worm wheel is fixedly sleeved on the rotary shaft, the rotary driver is fixedly installed on the cab, and the driving end of the rotary driver is fixedly connected to the worm.

[0015] Beneficial effects:

[0016] 1. Compared with the traditional excavator with the auxiliary controller, the present application realizes the function of quickly installing the auxiliary control structure through the cab, the first control device and the fixing device, which solves the defects of the auxiliary control structure of the traditional excavator that the installation is complicated and the space occupied is large.

[0017] 2. Compared with the traditional excavator with the auxiliary controller which drives the joystick to swing through two electric push rods, the auxiliary control component of the present application forms an electromagnetic drive mechanism between the first electromagnetic element and the second mounting frame and between the second electromagnetic element and the slider, thereby realizing the function of quickly driving the joystick, thereby solving the defects of the traditional auxiliary control component with complex calculation of the driving stroke and poor driving accuracy.

[0018] 3. The present application realizes the function of automatically resetting the driving slider through the first elastic member and the second elastic member, thereby solving the defect that the first driving component needs to be powered on to maintain the position of the joystick.

[0019] 4. The present application realizes the function of fast and portable installation of the auxiliary control component through the first matching piece, the arc-shaped clamping block, the third elastic piece and the pressing piece, which solves the problem that when the operator installs the auxiliary control component, it takes a long time to adjust the position of the second mounting frame and the slider, and once the position of the slider is greatly offset, it is easy to cause damage to the joystick.

[0020] 5. The present application realizes the function of easy installation of the slider through the second matching piece, the third matching piece and the connecting nail, thereby solving the defect that the slider needs to be reinstalled every time the second mounting frame is separated.

[0021] 6. The present application realizes the function of making the support rod adapt to the distance between the first mounting frames through the first main rod, the second main rod, the first threaded sleeve, the first limit rod and the second limit rod, thereby solving the defect that the distance between the first support frame and the second support frame is adjusted with the distance between the two operating rods, while multiple support rods are fixedly installed on the first support frame and the second support frame and cannot adapt to the distance between the first support frame and the second support frame.

[0022] 7. The present application realizes the function of adjusting the length of the support rod through the first auxiliary rod, the second auxiliary rod and the second threaded sleeve, thereby solving the defect that the support rod cannot adapt to the internal size of the cab of different excavators due to different internal sizes of the cab.

[0023] 8. The present application realizes the function of adjusting the installation position of the support rod through the first connecting rod and the second connecting rod, thereby solving the defect that the installation position of the support rod is difficult to select, resulting in difficulty in installing the auxiliary control component.

[0024] 9. The present application realizes the function of remotely driving the excavator to move through the travel pedal, the third mounting frame, the rotating shaft and the adjusting block, thereby solving the defect that the excavator cannot be remotely driven to move.

[0025] 10. The present application realizes the function of driving the adjustment block to rotate through a worm gear, a worm and a rotary driver, and solves the technical problem of how the second drive component drives the adjustment block to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0027] Figure 1 is a three-dimensional schematic diagram of the present application;

[0028] Figure 2 It is a three-dimensional schematic diagram of the cab of the present application;

[0029] Figure 3 It is a top view of the cab of the present application;

[0030] Figure 4 is a three-dimensional schematic diagram of the first control device of the present application;

[0031] Figure 5 is a three-dimensional schematic diagram of the auxiliary control component of the present application;

[0032] Figure 6 is a perspective exploded schematic diagram of the second mounting frame of the present application;

[0033] Figure 7 This application Figure 6 A local enlarged schematic diagram of the middle A;

[0034] Figure 8 It is a three-dimensional schematic diagram of the fixing device of the present application;

[0035] Fig. 9 is a three-dimensional schematic diagram of the support rod assembly of the present application;

[0036] Fig.10 It is a three-dimensional exploded schematic diagram of the support rod assembly of the present application;

[0037] Fig.11 is a three-dimensional schematic diagram of the second connection component of the present application;

[0038] Fig.12 is a three-dimensional schematic diagram of the second control device of the present application;

[0039] Fig.13 It is a three-dimensional schematic diagram of the second control device of the present application in the operation of the adjustment block. DETAILED DESCRIPTION

[0040] The reference numerals of the present invention are as follows: cab 100; joystick 110; travel pedal 120; first control device 200; auxiliary control assembly 210; first mounting frame 211; second mounting frame 212; slider 213; positioning nail 214; first drive assembly 220; first electromagnetic element 221; second electromagnetic element 222; reset assembly 230; first elastic member 231; second elastic member 232; first matching member 241; arc-shaped block 242; third elastic member 243; pressing member 244; second matching member 245; third matching member 246; connecting nail 247; first Support frame 310; second support frame 320; support rod assembly 330; suction cup 340; first main rod 331; second main rod 332; first threaded sleeve 333; first limit rod 334; second limit rod 335; second adjustment assembly 350; first sub-rod 351; second sub-rod 352; second threaded sleeve 353; second connecting assembly 360; first connecting rod 361; second connecting rod 362; second control device 400; third mounting frame 410; rotating shaft 420; adjusting block 430; second drive assembly 440; worm gear 441; worm 442; rotating driver 443.

[0041] See also Figure 1 to Figure 2 The present application provides an excavator for harsh working conditions with an auxiliary control structure, the excavator for harsh working conditions comprising a cab 100, in which two joysticks 110 are installed; it is characterized in that it also comprises a first control device 200 and a fixing device, the first control device 200 comprises two auxiliary control components 210, the fixing device comprises a first support frame 310, a second support frame 320, and one or more support rod components 330, the first support frame 310 and the second support frame 320 are detachably installed in the cab 100, the first support frame 310 and the second support frame 320 are slidably matched and enclosed to form a receiving space for installing the auxiliary control components 210; the two auxiliary control components 210 are detachably installed in the receiving space and are located at the two joysticks 110 in a one-to-one correspondence; the support rod components 330 are respectively connected to the first support frame 310 and the second support frame 320, and the two ends of the support rod components 330 are respectively connected to suction cups 340, and the support rod components 330 abut against the inner wall of the cab 100 through the suction cups 340.

[0042] The support rod assembly 330 may be a support rod adapted to a certain size of the cab 100, or may be an adjustable support assembly adapted to different sizes of cabs 100. In some embodiments of the present invention, the support rod assembly 330 is a support rod adapted to a certain size of the cab 100.

[0043] Based on the above embodiments, the technical problem that the present application intends to solve is how to quickly and stably install the first control device 200. To this end, the present application realizes the function of quickly installing the auxiliary control structure through the cab 100, the first control device 200 and the fixing device, and solves the defects of the auxiliary control structure of the traditional excavator being complicated to install and occupying a large space; the operator first adjusts the position between the first support frame 310 and the second support frame 320, and installs the first support frame 310 and the second support frame 320 to the two joysticks 110 respectively, and then fixes the first support frame 310 and the second support frame 320 through the support rod assembly 330, and then fixes the support rod assembly 330 to the inside of the cab 100 through the suction cups 340 at both ends of the support rod assembly 330, and uses the support rod assembly 330 to fix the first support frame 310 and the second support frame 320, and finally drives the joystick 110 through the auxiliary control assembly 210, so as to realize the remote control of the excavator.

[0044] Furthermore, the present application still has the defect that the control of the auxiliary control component 210 is still delayed, resulting in low working efficiency or even working errors. In order to solve this problem, Figure 3-5 As shown:

[0045] The auxiliary control component 210 includes a first mounting frame 211, a second mounting frame 212, a slider 213 and a positioning pin 214 which are sleeved on the outside of the joystick 110. The first mounting frame 211 is slidably mounted on the first support frame 310, the second mounting frame 212 is slidably mounted on the first mounting frame 211, the slider 213 is slidably mounted on the second mounting frame 212, the positioning pin 214 is detachably mounted on the first support frame 310, and the positioning pin 214 is slidably matched with the first mounting frame 211; the auxiliary control component 210 also includes a first driving component 220, the first driving component 220 includes a first electromagnetic element 221 for driving the second mounting frame 212 to slide along the first mounting frame 211 and a second electromagnetic element 222 for driving the slider 213 to slide along the second mounting frame 212, the first electromagnetic element 221 is fixedly mounted on the first mounting frame 211, and the second electromagnetic element 222 is fixedly mounted on the second mounting frame 212.

[0046] Based on the above embodiments, the technical problem that the present application wants to solve is how to quickly respond to the operator's instructions. To this end, the present application realizes the function of quickly driving the joystick 110 through the auxiliary control component 210 and the first drive component 220. The first electromagnetic element 221 and the second electromagnetic element 222 are electrically connected to the controller; the operator first adjusts the position between the first support frame 310 and the second support frame 320, installs the two auxiliary control components 210 to the two joysticks 110 respectively, and then fixes the first support frame 310 and the second support frame 320 through the support rod assembly 330, and then fixes the support rod assembly 330 to the interior of the cab 100 through the suction cups 340 at both ends of the support rod assembly 330, and uses the support rod assembly 330 to fix the first support frame 310 and the second support frame 320. Then, a signal is sent to the first electromagnetic element 221 and the second electromagnetic element 222 through the controller. After receiving the signal, the first electromagnetic element 221 drives the second mounting frame 212 to slide along the length direction of the first mounting frame 211, and the second mounting frame 212 drives the slider 213 and the joystick 110 to move along the Y-axis, thereby realizing the remote control of the joystick 110 to swing forward and backward; after receiving the signal, the second electromagnetic element 222 drives the slider 213 to slide along the length direction of the second mounting frame 212, thereby driving the joystick 110 to move along the X-axis, thereby realizing the remote control of the joystick 110 to swing left and right; the present application drives the slider 213 through the first electromagnetic element 221 and the second electromagnetic element 222; once the first electromagnetic element 221 and the second electromagnetic element 222 are energized, they can quickly drive the slider 213, thereby improving the response speed of the operation command.

[0047] For details, see Figure 5 , the first electromagnetic element 221 can be more than one pair of first electromagnets, and each pair of first electromagnets is relatively arranged along the Y axis, the second electromagnetic element 222 can be more than one pair of second electromagnets, and each pair of second electromagnets is relatively arranged along the X axis, and the slider 213 is preferably made of a magnetic material with a magnetic moment, such as iron, nickel, cobalt and alloys thereof. In order to ensure that when the excavator is working in a harsh working condition, the slider 213 and the second mounting frame 212 are affected by the bumps of the excavator and shake, the first electromagnetic element 221 and the second electromagnetic element 222 are configured to be magnetic when powered on, and the slider 213 and the second mounting frame 212 are respectively maintained at the reset position of the joystick 110 under a pair of mutually balanced forces.

[0048] In this application, see Figure 5 The Y axis is arranged along the length direction of the first mounting frame 211, and the X axis is arranged along the length direction of the second mounting frame 212. The length direction of the first mounting frame 211 is arranged perpendicular to the length direction of the second mounting frame 212.

[0049] Furthermore, after the joystick 110 is driven to swing, the joystick 110 needs to be reset. Since the slider 213 is slidably mounted on the second mounting frame 212 and has no other limit, the first electromagnetic element 221 and the second electromagnetic element 222 need to be energized all the time to generate a repulsive force on the slider 213 from two opposite directions so that the slider 213 is stably in the reset position. Therefore, in order to keep the joystick 110 in a stable reset state and not be affected by external forces, the present application still has the defect of needing to keep the first drive component 220 energized to maintain the position of the joystick 110. In order to solve this problem, Figure 3-5 As shown:

[0050] The auxiliary control component 210 also includes a reset component 230, which includes one or more first elastic members 231 that are relatively arranged opposite to each other and one or more second elastic members 232 that are relatively arranged opposite to each other, wherein the two ends of the first elastic member 231 are respectively fixedly connected to the first mounting frame 211 and the second mounting frame 212, and the two ends of the second elastic member 232 are respectively fixedly connected to the second mounting frame 212 and the slider 213.

[0051] Based on the above embodiments, the technical problem that the present application wants to solve is how to stabilize the position of the slider 213. To this end, the present application realizes the function of driving the slider 213 to automatically reset through the first elastic member 231 and the second elastic member 232. During installation, the operator first adjusts the position between the first support frame 310 and the second support frame 320, installs the two auxiliary control components 210 to the two joysticks 110 respectively, and then fixes the first support frame 310 and the second support frame 320 through the support rod assembly 330, and then fixes the support rod assembly 330 to the interior of the cab 100 through the suction cups 340 at both ends of the support rod assembly 330, and uses the support rod assembly 330 to fix the first support frame 310 and the second support frame 320. Then, the controller sends a signal to the first electromagnetic element 221 and the second electromagnetic element 222. After receiving the signal, the first electromagnetic element 221 drives the second mounting frame 212 to slide along the first mounting frame 211, and the second mounting frame 212 drives the slider 213 and the joystick 110 to move along the X-axis. When the first electromagnetic element 221 stops driving, the elastic force generated by the first elastic member 231 drives the second mounting frame 212 to return to the middle position; after receiving the signal, the second electromagnetic element 222 drives the slider 213 to slide along the second mounting frame 212, thereby driving the joystick 110 to move along the Y-axis. After the second electromagnetic element 222 stops driving, the elastic force generated by the second elastic member 232 drives the slider 213 to return to the middle position, thereby realizing remote control of the excavator; when the first electromagnetic element 221 and the second electromagnetic element 222 stop driving, the elastic force generated by the first elastic member 231 and the second elastic member 232 keeps the slider 213 at the original position of the joystick and reduces the influence of the bumps of the excavator on the position of the slider 213.

[0052] Furthermore, the present application still has the problem that when the operator installs the auxiliary control assembly 210, the slider 213 needs to be put on the joystick 110, so the position of the second mounting bracket 212 needs to be adjusted accordingly, and the slider 213 needs to be adapted to the position of the joystick 110. However, this process is time-consuming, and once the position of the slider 213 is greatly offset, it is easy to cause damage to the joystick 110. In order to solve this problem, Figure 3 , Figure 6 and Figure 7 As shown:

[0053] The second mounting frame 212 includes two first matching pieces 241 connected by head-to-tail buckles, an arc-shaped clamping block 242, a third elastic piece 243 and a pressing piece 244. The arc-shaped clamping block 242 is slidably mounted on the first matching piece 241. The two ends of the third elastic piece 243 are respectively fixedly connected to the first matching piece 241 and the arc-shaped clamping block 242. The pressing piece 244 is slidably mounted on the first matching piece 241. The two first matching pieces 241 are respectively connected to the first mounting frame 211 along the length direction of the first mounting frame 211 through the first elastic piece 231. At least one first matching piece 241 is connected to the slider 213 along another direction perpendicular to the length direction of the first mounting frame 211 through the second elastic piece 232.

[0054] Based on the above embodiments, the technical problem that the present application intends to solve is how to further facilitate the operator to install the auxiliary control assembly 210. To this end, the present application realizes the function of quickly and portablely installing the auxiliary control assembly 210 through the first matching piece 241, the arc-shaped block 242, the third elastic piece 243 and the pressing piece 244. The operator first presses the arc-shaped block 242 with the pressing piece 244, and the arc-shaped block 242 compresses the third elastic piece 243, thereby pressing the arc-shaped block 242 into the first matching piece 241, and then slides the first matching piece 241 to separate the two first matching pieces 241, and then passes the slider 213 through the joystick 110. At least one first matching piece 241 is connected to the slider 213 by the second elastic piece 232 arranged perpendicular to the length direction of the first mounting frame 211. Then squeeze the two first fittings 241. When the two first fittings 241 are in contact, the arc block 242 is squeezed and pressed into the first fitting 241. When the two first fittings 241 are pressed tightly, the arc block 242 enters the other first fitting 241. The elastic force provided by the third elastic member 243 presses the arc block 242 out of the first fitting 241 again, so that the two first fittings 241 are fixedly matched with each other. The inner side walls of the two first fittings 241 are connected to the first mounting frame 211 through the first elastic member 231 arranged along the length direction of the first fitting 241, respectively, to form the auxiliary control assembly 210. Compared with the conventional technology of fixing the joystick 110 by sleeve connection, the present application can quickly match the slider 213 with the joystick 110 by designing the first fitting 241 as a split type, thereby improving the installation portability of the auxiliary control assembly 210.

[0055] Furthermore, the present application still has the problem that each time the auxiliary control assembly 210 is installed, the position of the slider 213 still needs to be accurately adjusted to fit it onto the joystick 110. In order to solve this problem, Figure 6 As shown:

[0056] The slider 213 includes a second fitting piece 245 and a third fitting piece 246 spliced ​​with the second fitting piece 245 end to end, and a connecting pin 247 and a socket adapted to the connecting pin 247 are provided on the splicing surface, and the second fitting piece 245 and the third fitting piece 246 are spliced ​​with the connecting pin 247 and the socket; the second fitting piece 245 is slidably connected to a first fitting piece 241 and is connected to the first fitting piece 241 through a pair of second elastic pieces 232 arranged opposite to each other, and the third fitting piece 246 is slidably connected to another first fitting piece 241.

[0057] Specifically, the two ends of the second fitting piece 245 are respectively connected to the inner side wall of a first fitting piece 241 through a pair of second elastic pieces 232 arranged opposite to each other along the Y-axis direction; the two ends of the third fitting piece 246 are respectively connected to the inner side wall of another first fitting piece 241 through a pair of second elastic pieces 232 arranged opposite to each other along the Y-axis direction, so as to reset the slider formed by the second fitting piece 245 and the third fitting piece 246 to the original position of the operating lever.

[0058] Based on the above embodiments, the technical problem that the present application intends to solve is how to facilitate the installation of the slider 213. To this end, the present application realizes the function of facilitating the installation of the slider 213 through the second matching piece 245, the third matching piece 246 and the connecting pin 247. The operator first presses the pressing piece 244, and the pressing piece 244 squeezes the arc-shaped block 242, and the arc-shaped block 242 compresses the third elastic piece 243, thereby pressing the arc-shaped block 242 into the first matching piece 241, and then slides the first matching piece 241 to separate the two first matching pieces 241, and the two first matching pieces 241 respectively drive the second matching piece 245 and the third matching piece 246 to separate. Next, the second matching piece 245 and the third matching piece 246 are enclosed on the outer periphery of the joystick 110, and the connecting pin 247 on the third matching piece 246 is matched with the socket of the second matching piece 245. Next, the two first mating pieces 241 are squeezed, and when the two first mating pieces 241 are in contact, the arc-shaped block 242 is squeezed and pressed into the first mating piece 241. When the two first mating pieces 241 are pressed tightly, the arc-shaped block 242 enters the other first mating piece 241, and the elastic force provided by the third elastic piece 243 presses the arc-shaped block 242 out of the first mating piece 241 again, so that the two first mating pieces 241 are fixedly matched with each other. Then, the inner side walls of the two first mating pieces 241 are connected to the first mounting frame 211 through the first elastic pieces 231 arranged along the length direction of the first mating pieces 241, so as to form the auxiliary control assembly 210.

[0059] Furthermore, the present application still has the defect that the spacing between the first support frame 310 and the second support frame 320 is adjusted with the spacing between the two joysticks 110, and the plurality of support rod assemblies 330 are fixedly mounted on the first support frame 310 and the second support frame 320, and cannot adapt to the spacing between the first support frame 310 and the second support frame 320. In order to solve this problem, as Figure 8-9 As shown:

[0060] The support rod assembly 330 includes a first main rod 331, a second main rod 332, a first threaded sleeve 333, a first limiting rod 334 and a second limiting rod 335. The first support frame 310 is connected to the side wall of the first main rod 331, and the second support frame 320 is connected to the side wall of the second main rod 332; the first main rod 331 and the second main rod 332 are both provided with threads, one end of the first main rod 331 and one end of the second main rod 332 are respectively fixedly connected to the corresponding suction cup 340, and the other end of the first main rod 331 is threadedly connected to one end of the first threaded sleeve 333; the other end of the second main rod 332 is threadedly connected to the other end of the first threaded sleeve 333; one end of the first limiting rod 334 is fixedly connected to the other end of the first main rod 331, one end of the second limiting rod 335 is fixedly connected to the other end of the second main rod 332, and the other end of the first limiting rod 334 and the other end of the second limiting rod 335 are slidably matched.

[0061] Based on the above embodiments, the technical problem that the present application intends to solve is how to make the support rod assembly 330 adapt to the two first mounting frames 211. To this end, the present application realizes the function of making the support rod assembly 330 adapt to the spacing between the first mounting frames 211 through the first main rod 331, the second main rod 332, the first threaded sleeve 333, the first limiting rod 334 and the second limiting rod 335. The operator first installs the two auxiliary control assemblies 210 to the two joysticks 110 respectively, then holds the first main rod 331 with one hand, and then rotates the first threaded sleeve 333. Since the first main rod 331 and the second main rod 332 are limited by the first limit rod 334 and the second limit rod 335 to maintain circumferential synchronization, and the first main rod 331 and the second main rod 332 are both threadedly matched with the first threaded sleeve 333, the rotation of the first threaded sleeve 333 will drive the first main rod 331 and the second main rod 332 to move synchronously in opposite directions respectively, so that the distance between the two first mounting frames 211 is matched with the distance between the two joysticks 110, and finally the support rod assembly 330 is fixedly installed inside the cab 100 through the suction cups 340 at both ends of the support rod assembly 330.

[0062] Furthermore, the present application still has the defect that the inner dimensions of the cab 100 of different excavators are different, and the support rod assembly 330 cannot adapt to the inner dimensions of the cab 100. In order to solve this problem, Figure 8-9 As shown:

[0063] The fixing device also includes a second adjustment assembly 350 whose number is adapted to the number of the support rod assemblies 330. The second adjustment assembly 350 includes a first sub-rod 351, a second sub-rod 352 and two second threaded sleeves 353. The first sub-rod 351 is slidably matched with the first main rod 331, and the second sub-rod 352 is slidably matched with the second main rod 332. One end of the first sub-rod 351 and one end of the second sub-rod 352 are respectively fixedly connected to the corresponding suction cup 340, and the other end of the first sub-rod 351 and the other end of the second sub-rod 352 are respectively sleeved in a second threaded sleeve 353; the first main rod 331 is threadedly connected to one of the second threaded sleeves 353, and the second main rod 332 is threadedly connected to the other second threaded sleeve 353.

[0064] Based on the above embodiments, the technical problem that the present application intends to solve is how to make the support rod assembly 330 adapt to the size of the cab 100. To this end, the present application realizes the function of adjusting the length of the support rod assembly 330 through the first auxiliary rod 351, the second auxiliary rod 352 and the second threaded sleeve 353. The operator first adjusts the length between the first main rod 331 and the second main rod 332 so that the spacing between the two first mounting frames 211 adapts to the spacing between the joysticks 110, first holds the first main rod 331 with one hand, and then rotates the first threaded sleeve 333. Since the first main rod 331 and the second main rod 332 are kept synchronous in the circumferential direction by the first limiting rod 334 and the second limiting rod 335, and the first main rod 331 and the second main rod 332 are both threadedly matched with the first threaded sleeve 333, the rotation of the first threaded sleeve 333 will drive the first main rod 331 and the second main rod 332 to rotate. 332 move synchronously in opposite directions respectively, so that the spacing between the two first mounting frames 211 matches the spacing between the two joysticks 110; then the operator rotates the second threaded sleeve 353. Since the two second threaded sleeves 353 are threadedly matched with the first main rod 331 and the second main rod 332, the two second threaded sleeves 353 will respectively drive the first sub-rod 351 and the second sub-rod 352 to slide, thereby extending the support rod assembly 330, so that the suction cups 340 at both ends of the support rod assembly 330 are tightly connected to the inner wall of the cab 100, fixing the position of the auxiliary control assembly 210.

[0065] Furthermore, since other objects such as seats are also arranged in the cab 100, the operator needs to avoid other objects when installing the support rod assembly 330, which wastes a lot of time. The present application still has the defect that it is not convenient to select the installation position of the support rod assembly 330, which makes it difficult to install the auxiliary control assembly 210. In order to solve this problem, Fig.11 As shown:

[0066] The fixing device also includes a second connecting assembly 360, which includes a first connecting rod 361 and a second connecting rod 362. The two ends of the first connecting rod 361 are respectively hinged to the first main rod 331 and the first support frame 310, and the two ends of the second connecting rod 362 are respectively hinged to the second main rod 332 and the second support frame 320.

[0067] Based on the above embodiments, the technical problem that the present application intends to solve is how to facilitate the operator to rotate the installation position of the support rod assembly 330. To this end, the present application realizes the function of adjustable installation position of the support rod assembly 330 through the first connecting rod 361 and the second connecting rod 362. The present application sets a second connecting assembly 360, and the two sides of the first support frame 310 are fixedly supported by two support rod assemblies 330 respectively, and the first connecting rod 361 and the second connecting rod 362 cooperate with the first support frame 310 and the second support frame 320 to form a stable triangular support structure, thereby further facilitating the operator to quickly install the first control device 200.

[0068] Furthermore, the present application still has the defect that the excavator cannot be remotely driven to move. In order to solve this problem, Figure 2 , Figure 3 , Fig.12 and Fig.13 As shown:

[0069] It also includes a second control device 400 and a travel pedal 120, the travel pedal 120 is fixedly installed inside the cab 100, the second control device 400 includes a third mounting frame 410, a rotating shaft 420, an adjustment block 430 located above the travel pedal 120, and a second drive assembly 440, the third mounting frame 410 is fixedly installed inside the cab 100, the rotating shaft 420 is rotatably sleeved on the third mounting frame 410, the adjustment block 430 is fixedly connected to the rotating shaft 420, and the driving end of the second drive assembly 440 is transmission-connected to the rotating shaft 420.

[0070] Based on the above embodiments, the technical problem that the present application wants to solve is how to further improve the portability of the excavator. To this end, the present application realizes the function of remotely driving the excavator to move through the travel pedal 120, the third mounting frame 410, the rotating shaft 420 and the adjusting block 430. The adjusting block 430 is electrically connected to the controller; the operator installs the third mounting frame 410 inside the cab 100, and then fixes the auxiliary control assembly 210 through the fixing device, and then sends a signal to the second driving assembly 440 through the controller, and the second driving assembly 440 drives the rotating shaft 420 to rotate, and the rotating shaft 420 drives the adjusting block 430 to rotate, and then the adjusting block 430 presses the travel pedal 120, thereby remotely controlling the excavator to move.

[0071] Further, in order to solve the technical problem of how the second driving assembly 440 drives the adjusting block 430 to rotate, as Fig.12 As shown:

[0072] The second driving assembly 440 includes a worm wheel 441 , a worm 442 and a rotary driver 443 . The worm wheel 441 is fixedly sleeved on the rotary shaft 420 . The rotary driver 443 is fixedly installed on the cab 100 . The driving end of the rotary driver 443 is fixedly connected to the worm 442 .

[0073] Based on the above embodiments, the technical problem that the present application intends to solve is how to drive the adjustment block 430 to rotate. To this end, the present application realizes the function of driving the adjustment block 430 to rotate through a worm wheel 441, a worm 442 and a rotation driver 443. The rotation driver 443 is preferably a servo motor, which is electrically connected to the controller; the operator installs the third mounting frame 410 inside the cab 100, and then fixes and installs the auxiliary control assembly 210 through a fixing device, and then sends a signal to the servo motor through the controller, and the servo motor drives the worm 442 to rotate, and the worm 442 drives the worm wheel 441 connected thereto to rotate, and the worm wheel 441 drives the rotating shaft 420 to rotate, and the rotating shaft 420 drives the adjustment block 430 to rotate, and then the adjustment block 430 presses the travel pedal 120, thereby remotely controlling the excavator to travel.

[0074] The present invention provides a concept and method for a harsh working condition excavator with an auxiliary control structure. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A harsh working condition excavator with an auxiliary control structure, comprising a cab (100), wherein two joysticks (110) are installed in the cab (100); characterized in that: It also includes a first control device (200) and a fixing device, wherein the first control device (200) includes two auxiliary control components (210), and the fixing device includes a first support frame (310), a second support frame (320), and one or more support rod components (330), wherein the first support frame (310) and the second support frame (320) are detachably mounted in the cab (100), and the first support frame (310) and the second support frame (320) are slidably matched and enclosed to form a receiving space for installing the auxiliary control components (210); the two auxiliary control components (210) are detachably mounted in the receiving space and are located at the two joysticks (110) in a one-to-one correspondence; the support rod components (330) are respectively connected to the first support frame (310) and the second support frame (320), and suction cups (340) are respectively connected to the two ends of the support rod components (330), and the support rod components (330) are abutted against the inner wall of the cab (100) through the suction cups (340); The auxiliary control assembly (210) comprises a first mounting frame (211), a second mounting frame (212), a slider (213) sleeved on the outside of the joystick (110), and a positioning pin (214); the first mounting frame (211) is slidably mounted on the first support frame (310); the second mounting frame (212) is slidably mounted on the first mounting frame (211); the slider (213) is slidably mounted on the second mounting frame (212); the positioning pin (214) is detachably mounted on the first support frame (310); and the positioning pin (214) is detachably mounted on the first support frame (310). The auxiliary control assembly (210) further comprises a first drive assembly (220), the first drive assembly (220) comprising a first electromagnetic element (221) for driving the second mounting frame (212) to slide along the first mounting frame (211) and a second electromagnetic element (222) for driving the slider (213) to slide along the second mounting frame (212), the first electromagnetic element (221) being fixedly mounted on the first mounting frame (211), and the second electromagnetic element (222) being fixedly mounted on the second mounting frame (212); The auxiliary control component (210) further comprises a reset component (230), the reset component (230) comprising one or more first elastic members (231) arranged opposite to each other and one or more second elastic members (232) arranged opposite to each other, the two ends of the first elastic member (231) being fixedly connected to the first mounting frame (211) and the second mounting frame (212) respectively, and the two ends of the second elastic member (232) being fixedly connected to the second mounting frame (212) and the slider (213) respectively; The second mounting frame (212) comprises two first matching pieces (241) connected by head-to-tail buckles, an arc-shaped clamping block (242), a third elastic piece (243) and a pressing piece (244); the arc-shaped clamping block (242) is slidably mounted on the first matching piece (241); two ends of the third elastic piece (243) are respectively fixedly connected to the first matching piece (241) and the arc-shaped clamping block (242); and the pressing piece (244) is slidably mounted on the first matching piece (241); the two first matching pieces (241) are respectively connected to the first mounting frame (211) along the length direction of the first mounting frame (211) through the first elastic piece (231); and at least one first matching piece (241) is connected to the slider (213) along another direction perpendicular to the length direction of the first mounting frame (211) through the second elastic piece (232).

2. The severe working condition excavator with auxiliary control structure according to claim 1, characterized in that: The slider (213) comprises a second matching piece (245) and a third matching piece (246) connected end to end with the second matching piece (245); a connecting pin (247) and a socket matched with the connecting pin (247) are provided on the joint surface; the second matching piece (245) and the third matching piece (246) are connected via the connecting pin (247) and the socket; the second matching piece (245) is slidably connected to one first matching piece (241), and the third matching piece (246) is slidably connected to another first matching piece (241).

3. The severe working condition excavator with auxiliary control structure according to claim 1, characterized in that: The support rod assembly (330) comprises a first main rod (331), a second main rod (332), a first threaded sleeve (333), a first limiting rod (334) and a second limiting rod (335); the first support frame (310) is connected to the side wall of the first main rod (331), and the second support frame (320) is connected to the side wall of the second main rod (332); the first main rod (331) and the second main rod (332) are both provided with threads, and one end of the first main rod (331) and one end of the second main rod (332) are respectively connected to the corresponding The suction cup (340) is fixedly connected to the first main rod (331), the other end of the first main rod (331) is threadedly connected to one end of the first threaded sleeve (333); the other end of the second main rod (332) is threadedly connected to the other end of the first threaded sleeve (333); one end of the first limiting rod (334) is fixedly connected to the other end of the first main rod (331), one end of the second limiting rod (335) is fixedly connected to the other end of the second main rod (332), and the other end of the first limiting rod (334) and the other end of the second limiting rod (335) are slidably matched.

4. The severe working condition excavator with auxiliary control structure according to claim 3, characterized in that: The fixing device further comprises second adjustment assemblies (350) whose number matches the number of the support rod assemblies (330); the second adjustment assemblies (350) comprise a first auxiliary rod (351), a second auxiliary rod (352) and two second threaded sleeves (353); the first auxiliary rod (351) is slidably matched with the first main rod (331); the second auxiliary rod (352) is slidably matched with the second main rod (332); one end of the first auxiliary rod (351) and one end of the second auxiliary rod (352) are respectively fixedly connected to corresponding suction cups (340); the other end of the first auxiliary rod (351) and the other end of the second auxiliary rod (352) are respectively sleeved in one of the second threaded sleeves (353); the first main rod (331) is threadedly connected to one of the second threaded sleeves (353); the second main rod (332) is threadedly connected to the other second threaded sleeve (353).

5. The severe working condition excavator with auxiliary control structure according to claim 3, characterized in that: The fixing device also includes a second connecting assembly (360), the second connecting assembly (360) including a first connecting rod (361) and a second connecting rod (362), the two ends of the first connecting rod (361) being respectively hinged to the first main rod (331) and the first support frame (310), and the two ends of the second connecting rod (362) being respectively hinged to the second main rod (332) and the second support frame (320).

6. The severe working condition excavator with auxiliary control structure according to claim 1, characterized in that: The invention also comprises a second control device (400) and a travel pedal (120), wherein the travel pedal (120) is fixedly mounted inside the cab (100), the second control device (400) comprises a third mounting frame (410), a rotating shaft (420), an adjustment block (430) located above the travel pedal (120), and a second drive assembly (440), wherein the third mounting frame (410) is fixedly mounted inside the cab (100), the rotating shaft (420) is rotatably sleeved on the third mounting frame (410), the adjustment block (430) is fixedly connected to the rotating shaft (420), and the driving end of the second drive assembly (440) is drivingly connected to the rotating shaft (420).

7. The severe working condition excavator with auxiliary control structure according to claim 6, characterized in that: The second driving assembly (440) comprises a worm wheel (441), a worm (442) and a rotary driver (443); the worm wheel (441) is fixedly sleeved on the rotary shaft (420); the rotary driver (443) is fixedly mounted on the cab (100); and a driving end of the rotary driver (443) is fixedly connected to the worm (442).

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