阅读说明：本技术 换挡手柄、换挡手柄档位标定方法及作业机械 (Gear shifting handle, gear shifting handle gear calibration method and operation machine ) 是由 王现青 黄玉松 张明磊 梁明 王资法 于 2021-07-23 设计创作，主要内容包括：本发明实施例提供一种换挡手柄、换挡手柄档位标定方法及作业机械。换挡手柄包括换挡杆、主轴及软轴,所述主轴与所述软轴传动连接,所述主轴固定安装有霍尔元件,所述换挡杆通过连接件可转动安装在所述主轴上,所述连接件上固定安装磁性件。本发明实施例提供的换挡手柄及作业机械,固定安装在转接件上的磁性件随着换挡杆一并旋转,固定安装在主轴上的霍尔元件可以检测到变化的磁通量以输出模拟信号,根据霍尔元件检测的模拟信号即可确定当前的档位,相比于传统多个接收传感器检测档位的方式,成本低。(The embodiment of the invention provides a gear shifting handle, a gear calibration method of the gear shifting handle and an operating machine. The gear shifting handle comprises a gear shifting rod, a main shaft and a flexible shaft, the main shaft is in transmission connection with the flexible shaft, a Hall element is fixedly mounted on the main shaft, the gear shifting rod is rotatably mounted on the main shaft through a connecting piece, and a magnetic piece is fixedly mounted on the connecting piece. According to the gear shifting handle and the operation machine provided by the embodiment of the invention, the magnetic part fixedly arranged on the adapter rotates along with the gear shifting rod, the Hall element fixedly arranged on the main shaft can detect the changed magnetic flux to output the analog signal, the current gear can be determined according to the analog signal detected by the Hall element, and compared with the traditional mode that a plurality of receiving sensors detect the gear, the cost is low.)

1. The gear shifting handle is characterized by comprising a gear shifting rod, a main shaft and a flexible shaft, wherein the main shaft is in transmission connection with the flexible shaft, a Hall element is fixedly mounted on the main shaft, the gear shifting rod is rotatably mounted on the main shaft through a connecting piece, and a magnetic piece is fixedly mounted on the connecting piece.

2. The shift handle of claim 1 wherein the coupling member is a bolt and the magnetic member is mounted on a nut of the bolt, the magnetic member being located in the center of the nut.

3. The shift handle of claim 1, wherein the magnetic member is magnetic steel.

4. The shift handle of claim 1, further comprising a controller coupled to the hall element, the controller configured to control activation of a start relay in the case of the shift handle being in neutral.

5. A gear shift handle gear calibration method is characterized by comprising the following steps:

acquiring a voltage signal detected by a Hall element, and determining a current gear based on the voltage signal and preset gear information;

the preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shift handle is the gear shift handle according to any one of claims 1 to 4.

6. The shift handle gear calibration method according to claim 5, wherein the lower and upper voltage limits are floated by 15% to 25% compared to the corresponding gear voltage.

7. The shift handle gear calibration method according to claim 6, wherein the lower and upper voltage limits are 20% floating compared to the corresponding gear voltage.

8. The method for calibrating the gear position of the shift lever according to claim 5, wherein the voltage lower limit and the voltage upper limit are increased by a voltage floating percentage compared with the corresponding gear position when the absolute value of the relative error between the voltage signal and the voltage upper limit of the gear position is smaller than a preset percentage or the relative error between the voltage signal and the voltage lower limit of the gear position is smaller than a preset percentage.

9. A work machine, characterized in that it comprises a gear shift handle according to any of claims 1-4.

10. The work machine of claim 9, further comprising a communication module for communicatively coupling with an external cloud platform.

Technical Field

The invention relates to the technical field of operating machinery, in particular to a gear shifting handle, a gear calibration method of the gear shifting handle and the operating machinery.

Background

Most of the conventional gear shifting mechanisms are used for shifting gears through flexible shafts, the flexible shafts are connected with racks and machines, gears and the racks are matched, clamping grooves are formed behind the racks, steel balls and springs are arranged below the racks, and the gear shifting function is achieved through the matching of the steel balls and the clamping grooves behind the racks.

When the gear shifting handle is used for shifting gears, gears are required to be displayed at present so that drivers can conveniently view current gear information. However, in the existing detection structure, a plurality of detection elements are arranged correspondingly according to the number of gears, and each detection element corresponds to one gear, so that the detection cost is high, and the arrangement of the detection elements is complex.

Disclosure of Invention

The embodiment of the invention provides a gear shifting handle, a gear calibration method of the gear shifting handle and an operating machine, which are used for solving the defects of complex gear detection structure and high cost of the gear shifting handle in the prior art.

The embodiment of the invention provides a gear shifting handle which comprises a gear shifting rod, a main shaft and a flexible shaft, wherein the main shaft is in transmission connection with the flexible shaft, a Hall element is fixedly installed on the main shaft, the gear shifting rod is rotatably installed on the main shaft through a connecting piece, and a magnetic piece is fixedly installed on the connecting piece.

According to the gear shifting handle provided by the embodiment of the invention, the connecting piece is a bolt, the magnetic piece is arranged on a nut of the bolt, and the magnetic piece is positioned in the center of the nut.

According to the gear shifting handle provided by the embodiment of the invention, the magnetic part is magnetic steel.

According to the gear shifting handle provided by the embodiment of the invention, the gear shifting handle further comprises a controller, the controller is connected with the Hall element, and the controller is used for controlling the starting relay to start under the condition that the gear shifting handle is in a neutral gear.

The embodiment of the invention also provides a gear shift handle gear calibration method, which comprises the following steps:

acquiring a voltage signal detected by a Hall element, and determining a current gear based on the voltage signal and preset gear information;

the preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shifting handle is the gear shifting handle.

According to the gear position calibration method of the gear shifting handle provided by the embodiment of the invention, the voltage lower limit and the voltage upper limit float 15% -25% compared with the corresponding gear voltage.

According to the gear position calibration method for the gear shifting handle provided by the embodiment of the invention, the lower voltage limit and the upper voltage limit are floated by 20% compared with the corresponding gear voltage.

According to the gear shift handle gear calibration method provided by the embodiment of the invention, under the condition that the absolute value of the relative error between the voltage signal and the voltage upper limit of the gear at which the voltage signal is located is smaller than the preset percentage or the relative error between the voltage signal and the voltage lower limit of the gear at which the voltage signal is located is smaller than the preset percentage, the voltage floating percentage of the voltage lower limit and the voltage upper limit of the gear at which the voltage signal is located is increased compared with the corresponding gear.

An embodiment of the invention further provides a working machine, which comprises the gear shifting handle.

According to the working machine provided by the embodiment of the invention, the working machine further comprises a communication module, and the communication module is used for being in communication connection with an external cloud platform.

According to the gear shifting handle, the gear shifting handle gear calibration method and the operation machine provided by the embodiment of the invention, the magnetic part fixedly arranged on the adapter rotates along with the gear shifting rod, the Hall element fixedly arranged on the main shaft can detect the changed magnetic flux to output the analog signal, the current gear can be determined according to the analog signal detected by the Hall element, and compared with the traditional mode that a plurality of receiving sensors detect the gear, the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a shift handle provided by an embodiment of the present invention;

FIG. 2 is a flow chart of a shift handle gear calibration method provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Reference numerals:

1: a shift lever; 2: a main shaft; 3: a flexible shaft; 4: a Hall element; 5: a connecting member; 6: a magnetic member; 7: a rack box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The structure of the shift handle and the working machine according to the embodiment of the present invention will be described with reference to fig. 1.

The embodiment of the invention provides a gear shifting handle, which comprises a gear shifting rod 1, a main shaft 2 and a flexible shaft 3 as shown in figure 1. The main shaft 2 is in transmission connection with the flexible shaft 3, the main shaft 2 is fixedly provided with a Hall element 4, the gear shift lever 1 is rotatably arranged on the main shaft 2 through a connecting piece 5, and the connecting piece 5 is fixedly provided with a magnetic piece 6.

In the gear shifting process of the gear shifting rod 1, the adaptor 5 and the gear shifting rod 1 move around the main shaft 2 together, and then the flexible shaft 3 is pulled to realize gear shifting. The magnetic member 6 is fixedly mounted on the connecting member 5 and rotates along with the rotation of the shift lever 1, and the hall element 4 is fixedly mounted on the main shaft 2, so that along with the rotation of the shift lever 1, the magnetic member 6 rotates along with the rotation of the shift lever to change the magnetic flux of the hall element, and a changed analog signal is output.

When the gear shift lever 1 is in different positions, analog signals measured by the Hall element 4 are different, and the elongation of the flexible shaft 3 is different. That is, when the shift lever 1 is at different positions, the shift knob corresponds to different gears.

According to the gear shifting handle provided by the embodiment of the invention, the magnetic part 6 fixedly arranged on the adapter 5 rotates along with the gear shifting lever 1, the Hall element 4 fixedly arranged on the main shaft 2 can detect the changed magnetic flux to output an analog signal, the current gear can be determined according to the analog signal detected by the Hall element 4, and compared with the traditional mode that a plurality of receiving sensors detect the gear, the cost is low.

Specifically, as shown in fig. 1, the connecting member 5 is a bolt, and the magnetic member 6 is mounted on a nut of the bolt. Besides, the link 5 may be another transfer structure for mounting the shift lever 1 on the main shaft 2, as long as it can connect the shift lever 1 and the main shaft 2 and can move together with the shift lever 1. The magnetic member 6 is mounted on the nut of the bolt, and when it rotates with the shift lever 1, the magnetic field of the magnetic member 6 changes, and the magnetic flux detected by the hall element 4 changes, thereby outputting a changing analog signal.

Optionally, the magnetic element 5 is located in the center of the nut. Along with the rotation of gear level 1, magnetism piece 6 rotates and leads to the magnetic field direction to change, if magnetism piece 5 installs at the nut side, when rotating to the symmetric position, the analog signal that detects divides the degree less, easily takes place to mix up. In contrast, in the shift handle provided by the embodiment of the invention, the magnetic member 5 is installed in the center of the nut, so that confusion can be effectively avoided.

Specifically, the magnetic member 5 is magnetic steel. In addition, the magnetic member 5 may be a magnet, and the embodiment of the present invention is not particularly limited.

Specifically, the connecting piece 5 is provided with a groove, and the magnetic piece 6 is fixedly arranged in the groove in a bonding or clamping manner and the like.

As shown in fig. 1, the shift handle provided by the embodiment of the present invention further includes a rack box 7, the main shaft 2 is connected to an input end of the rack box 7, and the flexible shaft 3 is connected to an output end of the rack box 7.

Wherein, the rack box 7 adopts the existing transmission box structure, and the internal structure thereof is not repeated. The input end of the rack box 7 is connected with the main shaft 2, and the output end of the rack box 7 is connected with the flexible shaft 3.

On the basis of any one of the above embodiments, the shift handle provided by the embodiment of the invention further comprises a controller, the controller is connected with the hall element 4, and the controller is used for controlling the start of the start relay under the condition that the shift handle is in a neutral gear.

The controller is in communication connection with the Hall element 4, and analog signals that the Hall element 4 detected are transmitted to the controller, and the controller judges the gear that the shift handle is located according to the above, just can control the start relay to start under the condition that the shift handle is in neutral gear to realize neutral gear protect function.

Optionally, the controller is a display and control integrated machine, the display and control integrated machine includes a processor and a display, the display is used for displaying the gear signal, and the processor is used for determining the gear of the working machine according to the measured value of the hall element 4.

The processor is a data processing center for processing the Hall element 4, the current gear is determined by comparing the calibration range corresponding to each gear in the processing process, and the display displays the current gear information. It is to be understood that the processor and the display may be separate, and the embodiment of the present invention is not limited thereto.

The embodiment of the invention also provides a gear shift handle gear calibration method, which comprises the following steps:

step S210, acquiring a voltage signal detected by the hall element 4;

in step S220, the current gear is determined based on the voltage signal and the preset gear information.

The preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shifting handle is the gear shifting handle.

It should be noted that, during the rotation of the shift lever 1, the hall element 4 outputs a continuous voltage signal as the shift lever 1 changes. That is, the shift lever 1 has a different position and a different corresponding voltage signal. The gear position of each gear corresponding to the gear shift lever 1 corresponds to a certain gear voltage, but in actual use, due to different operation habits of operators and manufacturing errors of different gear shift handles, the gear voltage cannot be accurately set when the gear is adjusted.

Specifically, the lower and upper voltage limits float by 15% to 25% compared to the corresponding notch voltage.

For example, the gear voltage is 1V, the upper and lower levels are floated by 15%, and the corresponding lower voltage limit and upper voltage limit are 0.85V and 1.15V, respectively. For another example, the gear voltage is 1V, which fluctuates up and down by 20%, and the corresponding lower voltage limit and upper voltage limit are 0.8V and 1.2V, respectively. For another example, the gear voltage is 1V, the upper and lower levels float by 25%, and the corresponding lower and upper voltage limits are 0.75V and 1.25V, respectively.

Specifically, taking four gears as an example, if the voltage signal output by the hall element 4 is 0.5 ± 0.1V, the shift lever is in the reverse gear; if the voltage signal output by the Hall element 4 is 1.7 +/-0.34V, the gear shifting handle is in neutral; if the voltage signal output by the Hall element 4 is 3.2 +/-0.64V, the gear shifting handle is in the first gear; if the voltage signal output by the Hall element 4 is 4.5 +/-0.9V, the gear shifting handle is in the second gear.

Optionally, the lower and upper voltage limits are 20% floating compared to the corresponding notch voltage.

On the basis of any one of the above embodiments, when the absolute value of the relative error between the voltage signal and the voltage upper limit of the gear at which the voltage signal is located is smaller than the preset percentage or the relative error between the voltage signal and the voltage lower limit of the gear at which the voltage signal is located is smaller than the preset percentage, the voltage lower limit and the voltage upper limit are increased by the floating percentage compared with the corresponding gear voltage.

If the voltage signal output by the hall element 4 exceeds the upper voltage limit or the lower voltage limit, the corresponding shift operation cannot be executed after the shift adjustment, and therefore, the lower voltage limit and the upper voltage limit need to be adjusted according to the use condition.

Specifically, under the condition that the absolute value of the relative error between the voltage signal and the voltage upper limit of the gear at which the voltage signal is located is smaller than the preset percentage or the relative error between the voltage signal and the voltage lower limit of the gear at which the voltage signal is located is smaller than the preset percentage, it is indicated that the voltage signal output by the hall element 4 is close to the upper and lower limits of the preset gear information, at this time, the voltage lower limit and the voltage upper limit are increased by comparison with the corresponding gear voltage floating percentage, that is, the coverage area of the preset gear information is expanded, and it is ensured that the detected voltage signal can still fall within the corresponding preset gear information.

The preset percentage is determined according to experience or historical data, and may be 5% or 4%, and the like. Taking 5% as a preset percentage, taking the shift voltage as 1V, and taking the corresponding lower voltage limit and upper voltage limit as 0.8V and 1.2V, respectively, as an example, the voltage signal output by the hall element 4 is 1.15V, the relative error between the voltage signal and the upper voltage limit 1.2V is (1.15-1.2)/1.15-4.3%, the corresponding absolute value is 4.3%, and is less than 5% of the preset percentage, at this time, the upper voltage limit and the lower voltage limit are adjusted, and the voltage signal cannot fall into the interval corresponding to the preset shift information in the using process is avoided. Similarly, if the voltage signal output by the hall element is 0.85, the relative error between the voltage signal and the lower voltage limit is (0.83-0.8)/0.83 is 3.6%, which is less than 5% of the preset percentage, and at this time, the upper voltage limit and the lower voltage limit corresponding to the gear information also need to be adjusted. For example, the floating percentage can be adjusted from 20% to 30%, and the corresponding upper and lower voltage limits are 0.7V and 1.3V, respectively, so as to ensure that the voltage signal detected in the subsequent use process can still fall within the corresponding gear range.

According to the calibration method provided by the embodiment of the invention, in the use process, the preset gear information is adjusted according to the actual condition of current gear shifting, so that the gear adjustment fault is avoided.

In addition, the preset gear information can be adjusted after the gear shifting handle is used for a preset time. The preset time is set by people according to experience or determined according to the use degree of the gear shifting handle. The preset time is based on the time required for the gear shifting handle to be used cumulatively until the voltage signal which can affect the output of the hall element 4 can not fall into the preset gear information which is originally set. After the gear shifting handle is used for a long time, the gear voltage can deviate, and therefore, the preset gear information is adjusted through self-learning after the gear shifting handle is used for the preset time, so that the current gear can be accurately identified.

As shown in fig. 3, on the basis of the above embodiment, an embodiment of the present invention provides an electronic device, including: a processor (processor)301, a memory (memory)302, a communication Interface (Communications Interface)303, and a communication bus 304; wherein the content of the first and second substances,

the processor 301, the memory 302 and the communication interface 303 complete communication with each other through the communication bus 304. The memory 302 stores program instructions executable by the processor 301, and the processor 301 is configured to call the program instructions in the memory 302 to perform the methods provided by the above-mentioned method embodiments, for example, including: acquiring a voltage signal detected by the Hall element 4; and determining the current gear based on the voltage signal and the preset gear information. The preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shifting handle is the gear shifting handle.

It should be noted that, when being implemented specifically, the electronic device in this embodiment may be a server, a PC, or another device, as long as the structure includes the processor 301, the communication interface 303, the memory 302, and the communication bus 304 shown in fig. 3, where the processor 301, the communication interface 303, and the memory 302 complete mutual communication through the communication bus 304, and the processor 301 may call a logic instruction in the memory 302 to execute the above method. The embodiment does not limit the specific implementation form of the electronic device.

The logic instructions in memory 302 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone article of manufacture. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Further, embodiments of the present invention disclose a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, the computer is capable of performing the methods provided by the above-mentioned method embodiments, for example, comprising: acquiring a voltage signal detected by the Hall element 4; and determining the current gear based on the voltage signal and the preset gear information. The preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shifting handle is the gear shifting handle.

On the basis of the foregoing embodiments, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented to perform the transmission method provided by the foregoing embodiments when executed by a processor, and the method includes: acquiring a voltage signal detected by the Hall element 4; and determining the current gear based on the voltage signal and the preset gear information. The preset gear information comprises an upper voltage limit and a lower voltage limit corresponding to each gear, and the gear shifting handle is the gear shifting handle.

Besides, the embodiment of the invention also provides a working machine, which comprises the gear shifting handle. This operation machinery can detect the analog signal voltage that current gear corresponds through using as above the handle of shifting gears, fixed mounting is in main shaft 2 on hall element 4 and the magnetic part 5 of installing on connecting piece 3 mutually support, need not to set up the same too much sensor of the same number with the gear and can confirm current gear information, simple structure, it is with low costs.

In addition to this, the work machine is also provided with a communication module for communicative connection with an external cloud platform.

By means of the communication module, the operation machine sends relevant information such as the use duration and the use frequency of each gear to the external cloud platform, the external cloud platform collects a large amount of information of the operation machine, and the use condition of the operation machine is determined through statistical analysis.

Specifically, the working machine may be a mechanical device such as an excavator, a road roller, a crane, and the like, and the embodiment of the present invention is not particularly limited.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.