Differential lock locking device for mechanical equipment and mechanical equipment

Abstract

The utility model discloses a differential lock locking device for mechanical equipment and the mechanical equipment, and the differential lock locking device comprises a differential lock locking shaft assembly which comprises a differential lock locking shaft and a connecting plate arranged on the differential lock locking shaft; the stay wire transmission mechanism is connected with one end of the connecting plate and used for driving the end, connected with the stay wire transmission mechanism, of the connecting plate to deflect in the first preset direction so as to lock the differential lock; the rotary driving part is in driving connection with the stay wire transmission mechanism; the pedal is connected with the other end of the connecting plate and used for driving the end, connected with the pedal, of the connecting plate to deflect in the second preset direction so as to lock the differential lock, and the second preset direction is opposite to the first preset direction. The differential lock locking device for the mechanical equipment is simple in structure and beneficial to improving the use reliability of the mechanical equipment.

Description

Technical Field

[0001] This application belongs to the field of mechanical equipment technology, and specifically relates to a differential lock locking device and mechanical equipment for use in mechanical equipment. Background Technology

[0002] In modern agriculture and / or engineering, large-scale mechanized production has become the norm. In existing technologies, most mechanical equipment uses a foot pedal to lock the differential lock. However, this method of locking the differential lock has a problem: in the case of autonomous driving, when the rice transplanter recognizes that the vehicle is stuck in a mud pit, it cannot automatically lock the differential lock to get out of trouble. Utility Model Content

[0003] The purpose of this application is to provide a differential lock locking device and mechanical equipment for use in machinery. The differential lock locking device for machinery has a simple structure and is conducive to improving the reliability of the mechanical equipment.

[0004] To achieve the above objectives, the first aspect of this application provides a differential lock locking device for mechanical equipment, the differential lock locking device comprising:

[0005] A differential lock locking shaft assembly includes a differential lock locking shaft and a connecting plate disposed on the differential lock locking shaft;

[0006] A cable drive mechanism is connected to one end of a connecting plate and is used to drive the end of the connecting plate connected to the cable drive mechanism to deflect in a first preset direction to lock the differential lock.

[0007] A rotary drive component, connected to the wire drive mechanism for driving;

[0008] The pedal is connected to the other end of the connecting plate and is used to drive the end of the connecting plate connected to the pedal to deflect in a second preset direction to lock the differential lock, wherein the second preset direction is opposite to the first preset direction.

[0009] In embodiments of this application, the wire drive mechanism includes:

[0010] Transmission assembly, a rotary drive component drives the transmission assembly to rotate;

[0011] A connecting column is installed on the transmission assembly, and the central axis of the connecting column is spaced apart from the rotation center of the transmission assembly;

[0012] The cable has one end connected to the connecting post and the other end connected to the end of the connecting plate furthest from the pedal.

[0013] In the embodiments of this application, the transmission assembly includes a mounting plate and a transmission plate. A rotary drive component is disposed on the mounting plate, and the transmission plate is rotatably disposed on the mounting plate and drivenly connected to the rotary drive component. A connecting post is disposed on the transmission plate, and a pull wire is connected to the end of the connecting post away from the transmission plate.

[0014] In embodiments of this application, the differential lock locking device further includes a reset member disposed on the differential lock locking shaft and used to reset the differential lock locking shaft.

[0015] In the embodiments of this application, the differential lock locking device further includes a first limit switch disposed on the mounting plate and located on one side of the transmission plate. The first limit switch is used to limit the rotation angle of the transmission plate in a third preset direction. When the transmission plate is in contact with the first limit switch, the differential lock is in an unlocked state.

[0016] In the embodiments of this application, the differential lock locking device further includes a second limit switch disposed on the mounting plate and located on the side of the transmission plate away from the first limit switch. The second limit switch is used to limit the rotation angle of the transmission plate in a fourth preset direction. When the transmission plate is in contact with the second limit switch, the differential lock is in a locked state. The fourth preset direction is opposite to the third preset direction.

[0017] In the embodiments of this application, the wire is made of a flexible material.

[0018] In embodiments of this application, the cable drive mechanism further includes a protective tube assembly disposed on the mounting plate and used to protect the cable.

[0019] In embodiments of this application, the protective tube assembly includes:

[0020] Mounting bases are provided on the mounting plate and distributed at intervals with the connecting columns;

[0021] The protective tube is installed on the mounting base and extends away from the connecting post. One end of the pull wire is connected to the connecting post, and the other end of the pull wire passes through the protective tube and is connected to the connecting plate.

[0022] A second aspect of this application provides a mechanical device that includes the aforementioned differential lock locking device for mechanical devices.

[0023] As can be seen from the above technical solution, the differential lock locking device includes a differential lock locking shaft assembly, a cable drive mechanism, a rotary drive component, and a pedal. The differential lock locking shaft assembly includes a differential lock locking shaft and a connecting plate disposed on the differential lock locking shaft. One end of the cable drive mechanism is connected to the connecting plate and is used to drive the end of the connecting plate connected to the cable drive mechanism to deflect in a first preset direction to lock the differential lock. The rotary drive component is driven to connect to the cable drive mechanism. The other end of the pedal is connected to the connecting plate and is used to drive the end of the connecting plate connected to the pedal to deflect in a second preset direction to lock the differential lock, wherein the second preset direction is opposite to the first preset direction. This differential lock locking device has a simple structure. By incorporating a rotary drive component, a cable transmission mechanism, and a pedal, it can automatically drive the differential lock locking shaft to lock the differential lock, reducing labor intensity and improving the ease of use of the differential lock locking device and mechanical equipment. Furthermore, it can be manually driven to lock the differential lock shaft in case of malfunction of the rotary drive component and / or the cable transmission mechanism, thus improving the reliability of the differential lock locking device and the engineering machinery.

[0024] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0026] Figure 1 This is a first-view structural schematic diagram of the differential lock locking device in an embodiment of this application;

[0027] Figure 2 This is a second-view structural schematic diagram of the differential lock locking device in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures

[0029] 1-Differential lock locking shaft assembly; 101-Differential lock locking shaft; 102-Connecting plate; 2-Wire-operated transmission mechanism; 201-Transmission assembly; 2011-Mounting plate; 2012-Transmission plate; 2013-Meshing teeth; 2014-Arc-shaped hole; 202-Connecting column; 203-Wire; 204-Protective tube assembly; 2041-Mounting base; 2042-Protective tube; 2043-First plug; 2044-Second plug; 3-Rotary drive component; 4-Pedal; 401-Pedal part; 402-Connecting rod part; 5-First limit switch; 6-Second limit switch; 7-Reset component. Detailed Implementation

[0030] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0031] Embodiments of this application provide a differential lock locking device for mechanical equipment, such as... Figures 1-2 As shown, the differential lock locking device includes:

[0032] The differential lock locking shaft assembly 1 includes a differential lock locking shaft 101 and a connecting plate 102 disposed on the differential lock locking shaft 101;

[0033] The cable drive mechanism 2 is connected to one end of the connecting plate 102 and is used to drive the end of the connecting plate 102 connected to the cable drive mechanism 2 to deflect in a first preset direction to lock the differential lock.

[0034] The rotary drive component 3 is driven by the wire transmission mechanism 2.

[0035] The pedal 4 is connected to the other end of the connecting plate 102 and is used to drive the end of the connecting plate 102 connected to the pedal 4 to deflect in a second preset direction to lock the differential lock, wherein the second preset direction is opposite to the first preset direction.

[0036] Specifically, the mechanical device in this embodiment can be selected as agricultural machinery (such as a rice transplanter) and includes a differential lock. The differential lock locking shaft 101 can lock the differential lock of the mechanical device. The differential lock locking shaft 101 can lock the differential lock after rotating around the central axis in a fifth preset direction (such as clockwise). The setting direction of the connecting plate 102 is perpendicular to the axial direction of the differential lock locking shaft 101, and the middle position of the connecting plate 102 in the length direction is connected to the differential lock locking shaft 101. The differential lock locking device also includes a controller that is communicatively connected to the rotary drive 3. The rotary drive 3 can be a motor. If the mechanical device is stuck in a mud pit, the rotary drive 3 can drive the pull wire transmission mechanism 2 to move under the control of the controller. The pull wire transmission mechanism 2 can drive the end of the connecting plate 102 connected to the pull wire transmission mechanism 2 to deflect in a first preset direction (such as upward), thereby locking the differential lock. When the differential lock is locked, the mechanical device's ability to pass through the mud pit can be increased, and it can quickly get out of the mud pit.

[0037] In this embodiment, the pedal 4 includes a pedal portion 401 and a connecting rod portion 402. One end of the connecting rod portion 402 is connected to the pedal portion 401, and the other end of the connecting rod portion 402 is connected to the end of the connecting plate 102 near the cable transmission mechanism 2. The operator can apply force to one end of the connecting plate 102 through the pedal 4 to rotate the end of the connecting plate 102 connected to the pedal 4 in a second preset direction (e.g., downward) (at this time, the end of the connecting plate 102 connected to the cable transmission mechanism 2 is in a first preset direction). Similarly, it can also drive the differential lock locking shaft 101 to rotate around its own central axis to achieve differential lock locking. The pedal 4 is designed so that the operator can still achieve the differential lock locking function when the rotary drive component 3 and / or the cable transmission mechanism 2 malfunctions, further improving the reliability of the differential lock locking device and the engineering machinery.

[0038] The differential lock locking device in this embodiment has a simple structure. By setting up a rotary drive component 3, a cable transmission mechanism 2, and a pedal 4, it can automatically drive the differential lock locking shaft 101 to move, so that the differential lock is automatically locked, reducing labor intensity and improving the ease of use of the differential lock locking device and mechanical equipment. At the same time, it can also manually drive the differential lock locking shaft 101 to move when the rotary drive component 3 and / or the cable transmission mechanism 2 fails, so that the differential lock is manually driven to lock, thus improving the reliability of the differential lock locking device and engineering machinery.

[0039] Furthermore, in this embodiment, after the controller controls the rotary drive 3 to rotate in the sixth preset direction (e.g., the forward direction), the differential lock locking shaft 101 can pivot in the fifth preset direction (e.g., the clockwise direction) and lock the differential lock. Conversely, if the controller controls the rotary drive 3 to rotate in the seventh preset direction (which is opposite to the sixth preset direction, e.g., the reverse direction), the differential lock locking shaft 101 can rotate in the eighth preset direction (which is opposite to the fifth preset direction, e.g., the counterclockwise direction) and release the differential lock from its locking state.

[0040] In one embodiment of this application, such as Figure 1 As shown, the cable drive mechanism 2 includes:

[0041] Transmission assembly 201, the rotary drive component 3 drives transmission assembly 201 to rotate;

[0042] A connecting column 202 is disposed on the transmission assembly 201, and the central axis of the connecting column 202 is spaced apart from the rotation center of the transmission assembly 201.

[0043] Pull cable 203, one end of pull cable 203 is connected to connecting post 202, and the other end of pull cable 203 is connected to the end of connecting plate 102 away from pedal 4.

[0044] Specifically, in this embodiment, the transmission component 201 is the power input end of the cable transmission mechanism 2 and is spaced apart from the differential lock locking shaft 101. The transmission component 201 is driven by the rotary drive component 3. After the rotary drive component 3 performs the driving operation (i.e., the rotation operation), the transmission component 201 also rotates around the rotation center at any time. When the transmission component 201 rotates, the connecting post 202 set on the transmission component 201 also moves accordingly (the connecting post 202 rotates around the rotation center of the transmission component 201, and the connecting post 202 itself does not rotate). The cable 203 is arranged in a linear shape and connects the connecting plate 102 and the connecting post 202. When the connecting post 202 moves, it can drive the cable 203 to move along the setting direction of the cable 203. Under the pulling action of the cable 203, the connecting plate 102 and the differential lock locking shaft 101 can rotate around the central axis of the differential lock locking shaft 101 to lock the differential lock.

[0045] In one embodiment of this application, such as Figure 2 As shown, the transmission assembly 201 includes a mounting plate 2011 and a transmission plate 2012 (in this embodiment, the transmission plate 2012 is a sector gear). The rotary drive 3 is disposed on the mounting plate 2011, and the transmission plate 2012 is rotatably disposed on the mounting plate 2011 and drivenly connected to the rotary drive 3. The connecting post 202 is fixed on the transmission plate 2012, and the pull wire 203 is connected to the end of the connecting post 202 away from the transmission plate 2012.

[0046] Specifically, the rotary drive component 3 is positioned below and connected to the mounting plate 2011. The transmission plate 2012 is mounted on the mounting plate 2011 via a rotating shaft and can rotate relative to the mounting plate 2011. Further, the transmission plate 2012 rotates around the axial center of the rotating shaft, with the rotating shaft and connecting columns 202 spaced radially along the transmission plate 2012. The connecting columns 202 are perpendicular to the direction of the transmission plate 2012. Under the driving action of the rotary drive component 3, the transmission plate 2012 can rotate relative to the mounting plate 2011. The connecting columns 202, fixed on the transmission plate 2012, move along an arc-shaped trajectory. After the connecting columns 202 move, the differential lock locking shaft 101 can be pulled around its central axis by the pull cable 203 to lock the differential lock.

[0047] Furthermore, in this embodiment, the transmission plate 2012 and the rotary drive 3 are located on the same side of the mounting plate 2011, and the pull cable 203 is located on the side of the mounting plate 2011 away from the transmission plate 2012. A through arc-shaped hole 2014 is also formed on the mounting plate 2011. One end of the connecting post 202 is fixed to the transmission plate 2012, and the other end of the connecting post 202 passes through the arc-shaped hole 2014 and connects to the pull cable 203. The connecting post 202 can move within the arc-shaped hole 2014. When it is necessary to lock the differential lock, the connecting post 202 moves in the arc-shaped hole 2014 away from the differential lock locking shaft 101; when it is necessary to unlock the differential lock, the connecting post 202 moves in the arc-shaped hole 2014 towards the differential lock locking shaft 101.

[0048] In one embodiment of this application, the drive end of the rotary drive member 3 is formed with a rotatable gear portion, and the arc-shaped edge of the transmission plate 2012 is formed with a meshing tooth portion 2013 for meshing with the gear portion.

[0049] Specifically, in this embodiment, the rotary drive 3 can be further selected as an electric window lifting motor. When the rotary drive 3 performs the driving operation, the gear part (not shown in the figure) rotates and engages with the meshing tooth part 2013, so that the transmission plate 2012 rotates relative to the mounting plate 2011. The above structure can realize the power transmission between the rotary drive 3 and the transmission plate 2012, and can also drive the transmission plate 2012 to rotate. The structure is simple and helps to reduce the difficulty and cost of production and manufacturing.

[0050] In one embodiment of this application, the differential lock locking device further includes a reset member 7 disposed on the differential lock locking shaft 101 and used to reset the differential lock locking shaft 101.

[0051] Specifically, in this embodiment, the reset component 7 is a rotary spring installed on the differential lock locking shaft 101. After the controller determines that the construction machinery has escaped the road condition to be extricated, the controller controls the rotary drive component 3 to rotate in the seventh preset direction (such as the reverse direction). The cable 203 of the cable transmission mechanism 2 gradually reduces the tension applied to the differential lock locking shaft 101, so that the differential lock locking shaft 101 rotates in the eighth preset direction (such as the counterclockwise direction) under the action of the rotary spring. Alternatively, after the operator determines that the construction machinery has escaped the road condition to be extricated, the force applied to the pedal 4 is released, and the pedal 4 no longer applies pressure to the connecting plate 102. The differential lock locking shaft 101 rotates in the eighth preset direction (such as the counterclockwise direction) under the action of the rotary spring, so as to release the locking state of the differential lock.

[0052] In one embodiment of this application, the differential lock locking device further includes:

[0053] Lock-up detector, which communicates with the controller and is used to detect whether the differential lock is locked;

[0054] The road condition detector communicates with the controller and is used to detect whether the construction machinery is in a road condition that needs to be extricated.

[0055] The controller is configured to perform the following steps:

[0056] Step S101: Determine that the construction machinery is in a road condition requiring extrication;

[0057] Step S102: Control the rotary drive 3 to perform the first drive operation so that the cable transmission mechanism 2 drives the differential lock locking shaft 101 to rotate in the fifth preset direction;

[0058] Step S103: Determine that the differential lock is in the locked state;

[0059] Step S104: Control the rotary drive 3 to stop performing the first drive operation.

[0060] Specifically, in this embodiment, the road condition to be extricated can be a mud pit. The road condition detector includes a wheel speed detection module and a positioning module, both of which are communicatively connected to the controller. There are multiple wheel speed detection modules (such as wheel speed sensors), each used to detect the rotational speed of each wheel of the mechanical equipment. The positioning module can be a Beidou satellite guidance system and is used to detect the geographical location of the construction machinery. The wheel speed detection module and the positioning module send their respective detection results to the controller. If the controller determines, based on the detection results of each wheel speed detection module, that the difference between the rotational speed of one wheel of the mechanical equipment and the rotational speed of other wheels exceeds a preset speed range, it indicates that the rotational speed of one wheel significantly exceeds that of other wheels. On this basis, based on the detection results of the positioning module, it is determined that the position of the mechanical equipment is within a preset position range (such as a circular range with a radius of 2 meters) within a preset time period (such as 1 minute), indicating that the position of the mechanical equipment has not changed significantly within the preset time period. Combining the above two situations, it can be further determined that the construction machinery is in a road condition to be extricated.

[0061] After determining that the construction machinery is in a road condition that needs to be extricated, the controller controls the rotary drive 3 to perform the first drive operation. During the first drive operation, the drive end of the rotary drive 3 rotates in the sixth preset direction, and the cable transmission mechanism 2 transmits power between the rotary drive 3 and the differential lock locking shaft 101 so that the differential lock locking shaft 101 rotates in the fifth preset direction.

[0062] Furthermore, in this embodiment, after the locking detector detects that the differential lock is in a locked state, it sends a signal to the controller. Upon receiving the signal, the controller determines that the differential lock locking shaft 101 has rotated in the fifth preset direction to an angle that allows the differential lock to be locked, thus confirming that the differential lock is in a locked state. The controller then controls the rotary drive 3 to stop rotating. The above steps enable the differential lock locking device to automatically detect whether the construction machinery is in a difficult road condition and automatically lock the differential lock when the machinery is in such a condition, thereby improving the construction machinery's ability to extricate itself from difficult road conditions. The control is simple and easy to implement.

[0063] In one embodiment of this application, the differential lock locking device further includes:

[0064] The unlock detector communicates with the controller to detect whether the differential lock is in the unlocked state.

[0065] The controller is also configured to perform the following steps:

[0066] Step S201: Confirm that the construction machinery has been freed from the road conditions that require it to be removed;

[0067] Step S202: Control the rotary drive 3 to perform a second drive operation so that the differential lock locking shaft 101 rotates in the eighth preset direction, wherein the eighth preset direction is opposite to the fifth preset direction;

[0068] Step S203: Determine that the differential lock is in the unlocked state;

[0069] Step S204: Control the rotary drive 3 to stop performing the second drive operation.

[0070] Furthermore, after step S104 is completed, the controller controls the road condition detector to continue road condition detection. If the controller determines that the rotation speed of any two wheels of the mechanical equipment is the same based on the detection results of each wheel speed detection module in the road condition detector, it indicates that the rotation speed of each wheel is the same. On this basis, based on the detection results of the positioning module, it is determined that the position of the mechanical equipment exceeds the preset position range (such as a circular range with a radius of 2 meters) within a preset time period (such as 1 minute), indicating that the position of the mechanical equipment has changed significantly within the preset time period. Combining the above two situations, it can be further determined that the construction machinery has escaped the road condition that needs to be extricated.

[0071] After the controller determines that the engineering machinery has escaped the road conditions to be extricated, it controls the rotary drive 3 to perform the second drive operation. During the second drive operation, the drive end of the rotary drive 3 (i.e., the gear part on the rotary drive 3) rotates in the seventh preset direction (such as the reverse direction). The cable 203 of the cable transmission mechanism 2 gradually reduces the tension applied to the differential lock locking shaft 101 so that the differential lock locking shaft 101 rotates in the eighth preset direction (such as the counterclockwise direction) under the action of the rotary spring.

[0072] Furthermore, in this embodiment, after the unlocking detector detects that the differential lock is in the unlocked state, it sends a signal to the controller. Upon receiving the signal, the controller determines that the pull cable 203 no longer applies tension to the differential lock locking shaft 101 (or the tension is less than the reset force applied by the rotary spring to the differential lock locking shaft 101). Under the action of the rotary spring, the differential lock locking shaft 101 rotates to its original position in the eighth preset direction (such as counterclockwise). Then, the controller controls the rotary drive 3 to stop rotating. The above steps enable the differential lock locking device to automatically detect when the construction machinery is out of the road condition to be extricated, and automatically release the differential lock's locking state when the construction machinery is out of the road condition to avoid affecting the subsequent movement of the construction machinery.

[0073] In one embodiment of this application, the differential lock locking device further includes a first limit switch 5 disposed on the mounting plate 2011 and located on one side of the transmission plate 2012. The first limit switch 5 is used to limit the rotation angle of the transmission plate 2012 in a third preset direction. When the transmission plate 2012 is in contact with the first limit switch 5, the differential lock is in an unlocked state.

[0074] Specifically, when the transmission plate 2012 is driven by the rotary drive 3 to rotate a first preset angle in the third preset direction (in this embodiment, the third preset direction refers to the direction on the movement path of the transmission plate 2012 that is close to the differential lock locking shaft 101), it can contact the first limit switch 5. The first limit switch 5 is triggered and sends a signal to the controller. After receiving the above signal, the controller can determine that the pull cable 203 no longer applies a pulling force to the differential lock locking shaft 101 (or the pulling force is less than the reset force applied by the rotary spring). The differential lock locking shaft 101 has rotated to its original position in the eighth preset direction under the action of the rotary spring, and the differential lock has been unlocked. That is, the first limit switch 5 is the unlocking detector in this embodiment.

[0075] In one embodiment of this application, the differential lock locking device further includes a second limit switch 6 disposed on the mounting plate 2011 and located on the side of the transmission plate 2012 away from the first limit switch 5. The second limit switch 6 is used to limit the rotation angle of the transmission plate 2012 in a fourth preset direction. When the transmission plate 2012 is in contact with the second limit switch 6, the differential lock is in a locked state, wherein the fourth preset direction is opposite to the third preset direction.

[0076] Specifically, when the transmission plate 2012 is driven by the rotary drive 3 to rotate a second preset angle in the fourth preset direction (in this embodiment, the fourth preset direction refers to the direction away from the differential lock locking shaft 101 on the movement path of the transmission plate 2012) it can contact the second limit switch 6. The second limit switch 6 is triggered and sends a signal to the controller. After receiving the above signal, the controller can determine that the differential lock locking shaft 101 has rotated to the fifth preset direction by an angle that can lock the differential lock, and thus determine that the differential lock is in the locked state. That is, the second limit switch 6 is the locking detector in this embodiment.

[0077] In one embodiment of this application, the wire 203 is made of a flexible material.

[0078] Specifically, in this embodiment, the flexible material component refers to a component made of a material that does not break under bending conditions. Further, the pull cable 203 can be selected as a steel wire rope or a nylon rope. The pull cable 203 of the above form not only enables good linear motion but also has the advantages of low cost and ease of manufacturing. Furthermore, when it is necessary to unlock the differential lock, the tension on the differential lock locking shaft 101 can be gradually reduced until it is eliminated, thus unlocking the differential lock. Further, in this embodiment, the pull cable 203 can also be selected as other types of flexible material components besides steel wire rope and nylon rope.

[0079] In one embodiment of this application, the cable drive mechanism 2 further includes a protective tube assembly 204 disposed on the mounting plate 2011 for protecting the cable 203, wherein the protective tube assembly 204 includes:

[0080] Mounting base 2041 is disposed on mounting plate 2011 and distributed at intervals with connecting posts 202;

[0081] The protective tube 2042 is mounted on the mounting base 2041 and extends away from the connecting post 202. One end of the pull wire 203 is connected to the connecting post 202, and the other end of the pull wire 203 passes through the protective tube 2042 and is connected to the connecting plate 102.

[0082] Specifically, the protective tube 2042 is oriented in the same direction as the pull cable 203, and its length is less than that of the pull cable 203. The protective tube 2042 protects the pull cable 203, extending its service life and enhancing the reliability of the pull cable transmission mechanism 2. Furthermore, when the pull cable 203 is a steel wire rope, the protective tube 2042 effectively prevents it from rusting due to water or dust. In addition, the protective tube 2042 prevents interference between the bottom of the pedal 4 or the mounting plate 2011 and the pull cable 203, thus preventing the pull cable 203 from functioning properly and further improving the practicality of the pull cable transmission mechanism 2.

[0083] In one embodiment of this application, the protective tube assembly 204 further includes a first plug 2043 and a second plug 2044 for blocking the two ends of the protective tube 2042, respectively. The pull wire 203 passes through the first plug 2043 and the second plug 2044. The first plug 2043 and the second plug 2044 can further prevent dust and / or water from entering the interior of the protective tube 2042 and causing corrosion to the pull wire 203.

[0084] Another embodiment of this application provides a mechanical device that includes the differential lock locking device for mechanical devices described in the above embodiments.

[0085] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0087] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, 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 different embodiments or examples.

[0088] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A differential lock locking device for a mechanical device, characterized in that, The differential lock locking device includes: The differential lock locking shaft assembly (1) includes a differential lock locking shaft (101) and a connecting plate (102) disposed on the differential lock locking shaft (101); A cable drive mechanism (2) is connected to one end of the connecting plate (102) and is used to drive the end of the connecting plate (102) connected to the cable drive mechanism (2) to deflect in a first preset direction to lock the differential lock. The rotary drive component (3) is driven to connect with the wire pull transmission mechanism (2); The pedal (4) is connected to the other end of the connecting plate (102) and is used to drive the end of the connecting plate (102) connected to the pedal (4) to deflect in a second preset direction to lock the differential lock, wherein the second preset direction is opposite to the first preset direction.

2. The differential lock device for a mechanical device according to claim 1, characterized in that The wire pull transmission mechanism (2) includes: The transmission assembly (201) is driven to rotate by the rotary drive (3); A connecting column (202) is disposed on the transmission assembly (201), and the central axis of the connecting column (202) is spaced apart from the rotation center of the transmission assembly (201); A pull wire (203) is provided, one end of which is connected to the connecting post (202), and the other end of which is connected to the end of the connecting plate (102) away from the pedal (4).

3. The differential lock device for a mechanical device according to claim 2, characterized in that The transmission assembly (201) includes a mounting plate (2011) and a transmission plate (2012). The rotary drive (3) is disposed on the mounting plate (2011). The transmission plate (2012) is rotatably disposed on the mounting plate (2011) and drivenly connected to the rotary drive (3). The connecting column (202) is disposed on the transmission plate (2012).

4. The differential lock device for a mechanical device according to claim 3, characterized in that The differential lock locking device further includes a reset member (7) disposed on the differential lock locking shaft (101) and used to reset the differential lock locking shaft (101).

5. The differential lock device for a mechanical device according to claim 3, characterized in that The differential lock locking device further includes a first limit switch (5) disposed on the mounting plate (2011) and located on one side of the transmission plate (2012). The first limit switch (5) is used to limit the rotation angle of the transmission plate (2012) in a third preset direction. When the transmission plate (2012) is in contact with the first limit switch (5), the differential lock is in the unlocked state.

6. The differential lock device for a mechanical device according to claim 5, characterized in that The differential lock locking device further includes a second limit switch (6) disposed on the mounting plate (2011) and located on the side of the transmission plate (2012) away from the first limit switch (5). The second limit switch (6) is used to limit the rotation angle of the transmission plate (2012) in a fourth preset direction. When the transmission plate (2012) is in contact with the second limit switch (6), the differential lock is in a locked state, wherein the fourth preset direction is opposite to the third preset direction.

7. The differential lock device for a mechanical device according to claim 2, characterized in that The pull wire (203) is made of flexible material.

8. The differential lock device for a mechanical device according to claim 3, characterized in that, The wire drive mechanism (2) further includes a protective tube assembly (204) disposed on the mounting plate (2011) and used to protect the wire (203).

9. The differential lock device for a mechanical device according to claim 8, characterized in that The protective tube assembly (204) includes: Mounting base (2041) is disposed on the mounting plate (2011) and spaced apart from the connecting post (202); A protective tube (2042) is disposed on the mounting base (2041) and extends away from the connecting post (202). One end of the pull wire (203) is connected to the connecting post (202), and the other end of the pull wire (203) passes through the protective tube (2042) and is connected to the connecting plate (102).

10. A mechanical device, characterized by The mechanical equipment includes a differential lock locking device for mechanical equipment according to any one of claims 1-9.

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