Crawler tension adjusting device, adjusting method, crawler wheel and working machine

Abstract

The application relates to the technical field of engineering machinery, and provides a track tension adjusting device, an adjusting method, a track wheel and a working machine. The track tension adjusting device comprises a tensioning device, a detection element and a control device. The tensioning device is arranged on a track frame in an extendable and retractable mode and is used for adjusting the tension of the track. The detection element detects the sag value of the track. The control device is in communication connection with the tensioning device and the detection element. The control device controls the extension and retraction of the tensioning device according to the detection signal of the detection element. The control device is configured to control the extension of the tensioning device when the detection element detects that the sag value is greater than or equal to a first standard sag value; control the retraction of the tensioning device when the detection element detects that the sag value is less than or equal to a second standard sag value; and the first standard sag value is greater than the second standard sag value. The automatic adjustment of the track tension can be realized, the adjusting precision is improved, and the cost is reduced. The track tension can be avoided from being excessively high.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a track tension adjustment device, adjustment method, track wheel, and working machinery. Background Technology

[0002] Tracked construction machinery, such as tracked cranes and tracked excavators, is a widely used and important piece of equipment in various construction projects. The track is a crucial component of this type of machinery, a key device ensuring the normal and stable movement of the equipment. If the track tension is insufficient, vibrations and jumping may occur during movement (this phenomenon is more pronounced at higher speeds), causing the track pads to jump off the track rollers. If movement continues in this state, the track pads will disengage from the tensioner. Furthermore, track engagement is similar to a flexible transmission; if not tensioned, the track pads will sag and hang between the drive wheel and the track rollers, easily causing the track pads to arch or lift, all of which will affect the normal movement of the construction machinery.

[0003] Currently, in the technology of using tensioning devices as track tension adjustment mechanisms, the track tension must first be manually observed and judged before adjustment, and then the tensioning device must be manually adjusted. However, this method requires manual judgment to determine whether the track tension adjustment meets the usage standards, and each operation requires manual intervention and at least two people to complete. This increases labor costs and cannot guarantee adjustment accuracy. Summary of the Invention

[0004] This invention provides a track tension adjustment device, adjustment method, track wheel, and working machinery to solve the defects of existing technologies that require manual detection and adjustment of track tension, resulting in high labor costs and low adjustment accuracy.

[0005] This invention provides a track tension adjustment device, comprising:

[0006] The tensioning device is telescopically mounted on the track frame and is used to adjust the tension of the track.

[0007] A detection element for detecting the sag value of the track;

[0008] A control device, communicatively connected to the tensioning device and the detection element, is used to control the extension and retraction of the tensioning device based on the detection signal from the detection element. The control device is configured as follows:

[0009] When the detection element detects that the sag value of the track is greater than or equal to the first standard sag value, the tensioning device is controlled to extend.

[0010] When the detection element detects that the sag value of the track is less than or equal to the second standard sag value, the tensioning device is controlled to contract.

[0011] The first standard overhang value is greater than the second standard overhang value.

[0012] According to the present invention, a track tension adjusting device is provided, wherein the tensioning device is a telescopic cylinder, the track tension adjusting device further includes a control valve, the first working port of the control valve is connected to the rodless chamber of the tensioning device, the second working port of the control valve is connected to the rod chamber of the tensioning device, and the control device is used to control the reversing of the control valve, wherein the control device is configured as follows:

[0013] When the detection element detects that the overhang value of the track is greater than or equal to the first standard overhang value, it controls the valve core of the control valve to move to the first working position so that the inlet of the control valve is connected to the first working port.

[0014] When the detection element detects that the sag value of the track is less than or equal to the second standard sag value, it controls the valve core of the control valve to move to the second working position so that the inlet of the control valve is connected to the second working port.

[0015] According to the present invention, the track tension adjustment device is provided in which the track sag value is the maximum distance between the bottom plate of the track frame and the track plate located below the track frame.

[0016] According to the present invention, a track tension adjustment device is provided, wherein at least one detection element is provided on both sides of the track frame.

[0017] The present invention also provides a method for adjusting track tension, based on the track tension adjusting device described in any one of the above claims, comprising:

[0018] The sag value of the track is detected, and the sag value of the track is compared with the first standard sag value and the second standard sag value respectively;

[0019] When the sag value of the track is greater than or equal to the first standard sag value, the tensioning device is controlled to extend.

[0020] When the sag value of the track is less than or equal to the second standard sag value, the tensioning device is controlled to contract.

[0021] The track tension adjustment method provided by the present invention further includes:

[0022] Before detecting the sag value of the track, the support device of the control machine raises the track wheels.

[0023] The track tension adjustment method provided by the present invention further includes:

[0024] Before the support device of the controlled working machine raises the track wheels, it is checked whether the working device is installed on the support device.

[0025] The track tension adjustment method provided by the present invention further includes:

[0026] Before detecting the sag value of the track, the track is controlled to reverse half a turn.

[0027] The present invention also provides a track wheel, including the track tension adjustment device as described in any one of the above claims.

[0028] The present invention also provides a working machine, including a track tension adjustment device as described in any one of the above claims, or a track wheel as described in the above claims, or performing a track tension adjustment method as described in any one of the above claims.

[0029] This invention provides a track tension adjustment device, adjustment method, track wheel, and working machinery. The track tension adjustment device includes a tensioning device, a detection element, and a control device. The tensioning device is telescopically mounted on the track frame and can be used to adjust the track tension. The detection element detects the track sag value to determine the track tension. The control device is communicatively connected to both the tensioning device and the detection element, and controls the extension and retraction of the tensioning device based on the detection signal from the detection element. The control device is configured to: extend the tensioning device to tension the track when the detection element detects a track sag value greater than or equal to a first standard sag value; and retract the tensioning device to prevent over-tensioning of the track when the detection element detects a track sag value less than or equal to a second standard sag value.

[0030] With this setup, the control device controls the extension and retraction of the tensioning device based on the detection signal from the detection element, thereby adjusting the track tension. This enables automatic adjustment of track tension, reducing errors caused by human judgment and operation, minimizing personnel involvement, and lowering maintenance and after-sales costs. Furthermore, it can detect whether the track is over-tensioned, thus preventing excessive tension that could reduce its service life. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the track wheel provided by the present invention;

[0033] Figure 2 This is a hydraulic control diagram of the tensioning device provided by the present invention;

[0034] Figure 3 This is a flowchart of the track tension adjustment method provided by the present invention;

[0035] Figure 4 This is a flowchart of the method for adjusting the track tension of a rotary drilling rig provided by the present invention.

[0036] Figure label:

[0037] 1. Track frame; 2. Drive wheel; 3. Guide wheel;

[0038] 4. Track assembly; 5. Tensioner; 6. Track rollers;

[0039] 7. Carrier roller; 8. Control valve; 9. Oil pump;

[0040] 10. Oil storage device; 11. Overflow valve; 51. Cylinder block;

[0041] 52. Piston rod; 53. Rodless chamber; 54. Rod chamber;

[0042] 55. First oil passage; 56. Second oil passage. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0045] The following is combined with Figures 1 to 4 The present invention describes the track tension adjustment device, adjustment method, track wheel, and working machinery.

[0046] The present invention provides a track tension adjustment device, which may include a tensioning device 5, a detection element and a control device.

[0047] The tensioning device 5 is telescopically mounted on the track frame 1, and the tensioning device 5 can be used to adjust the tension of the track so that the tension of the track meets the usage requirements.

[0048] The detection element can be used to detect the sag of the track, and the track tension can be determined based on the sag value.

[0049] Here, the track sag value refers to the maximum distance between the bottom plate of track frame 1 and the track plate below it.

[0050] In addition, the control device can be communicatively connected to the tensioning device 5 and the detection element respectively, and the control device can be used to control the tensioning device 5 to extend or retract according to the detection signal of the detection element.

[0051] Specifically, the control device can be configured to extend the tensioning device 5 to tension the track when the detection element detects that the track sag value is greater than or equal to the first standard sag value.

[0052] The control device can be configured to control the tensioning device 5 to contract when the detection element detects that the track sag value is less than or equal to the second standard sag value, so as to avoid excessive tension of the track.

[0053] It should be noted that when the detection element detects that the track sag value is between the first standard sag value and the second standard sag value, the control device controls the tensioning device 5 to stop extending or contracting so that the track tension meets the usage requirements.

[0054] The track tension adjustment device is used to adjust the track tension of the track wheel when it is suspended in the air.

[0055] With this setup, the control device controls the tensioning device 5 to extend and retract based on the detection signal from the detection element, thereby adjusting the track tension. This allows for automatic adjustment of track tension, reducing errors caused by human judgment and operation, minimizing personnel involvement, and lowering maintenance and after-sales costs. Furthermore, it can detect whether the track is over-tensioned, thus preventing over-tensioning that could reduce its service life.

[0056] In an optional embodiment, the detection element can be a distance detection element, specifically a distance sensor. The distance detection element can detect the distance between the track plate located below the track frame 1 and the bottom end of the track frame 1. In this way, by detecting the sag value of the track plate below the track frame 1, the detection accuracy is high compared to detecting the sag of the track plate above the track frame 1, which can improve the adjustment accuracy of the track tension.

[0057] It should be noted that, due to the influence of gravity, the track plates above the track frame 1 will sag to a certain extent. Therefore, judging the track tension by detecting the sag of the track plates above the track frame 1 will result in low accuracy of the detected track tension and relatively low accuracy of track tension adjustment.

[0058] In this embodiment, the distance detection element can be a distance sensor.

[0059] In an optional embodiment, the distance detection element may include a first distance sensor and a second distance sensor. The first distance sensor and the second distance sensor may be arranged horizontally side by side. The first distance sensor may be used to detect the distance B from its installation position to the bottom end of the track frame 1, and the second distance sensor may be used to detect the distance C from its installation position to the track plate below the track frame 1. The difference between the distance value detected by the first distance sensor and the distance value detected by the second distance sensor is the track sag value A.

[0060] In an optional embodiment of the present invention, the tensioning device 5 can be a telescopic cylinder. Specifically, the cylinder body 51 of the tensioning device 5 can be connected to the track frame 1, and the piston rod 52 of the tensioning device 5 can abut against the track. In this way, the tension of the track can be adjusted by extending and retracting the telescopic cylinder.

[0061] In an optional embodiment, the track tension adjustment device may further include a control valve 8. The first working port I of the control valve 8 may be connected to the rodless chamber 53 of the tensioning device 5, and the second working port II of the control valve 8 may be connected to the rod chamber 54 of the tensioning device 5. The control device may be used to control the reversal of the control valve 8 to achieve control of the tensioning device 5.

[0062] Specifically, the control device can be configured such that when the detection element detects that the track sag value is greater than or equal to the first standard sag value, the valve core of the control valve 8 is moved to the first working position, so that the inlet of the control valve 8 is connected to the first working port I. In this way, the driving medium can enter the rodless chamber 53 of the tensioning device 5 through the first working port I, so that the pressure in the rodless chamber 53 increases, thereby driving the piston rod 52 of the tensioning device 5 to extend and tension the track.

[0063] The control device can be configured such that when the detection element detects that the track sag value is less than or equal to the first standard sag value, the valve core of the control valve 8 is moved to the second working position, so that the inlet of the control valve 8 is connected to the second working port II. In this way, the driving medium can enter the rod chamber 54 of the tensioning device 5 through the second working port II, so that the pressure in the rod chamber 54 increases, thereby driving the piston rod 52 of the tensioning device 5 to contract, so that the track sag value is between the first standard sag value and the second standard sag value, thereby avoiding over-tensioning of the track.

[0064] In an optional embodiment, the piston rod 52 may be provided with a first oil passage 55, which communicates with the rodless chamber 53, and the cylinder body 51 may have a second oil passage 56 communicating with the rod chamber 54. The first working port I of the control valve 8 may communicate with the first oil passage 55, and the second working port II of the control valve 8 may communicate with the second oil passage 56.

[0065] In an optional embodiment, the track tension adjustment device may further include an oil storage device 10 and an oil pump 9. The oil storage device 10 is used to store the driving medium. The oil inlet of the oil pump 9 may be connected to the oil outlet of the oil storage device 10. The oil outlet of the oil pump 9 may be connected to the inlet of the control valve 8 for supplying the driving medium to the tensioning device 5. The oil return port of the control valve 8 may be connected to the oil inlet of the oil storage device 10.

[0066] Here, the driving medium can be butter.

[0067] In an optional embodiment, an overflow valve 11 is connected to the oil outlet of the oil pump 9 to keep the pressure at the outlet of the oil pump 9 constant.

[0068] In an optional embodiment of the present invention, at least two detection elements may be provided, and at least one detection element may be provided on each side of the track frame 1. The detection elements on both sides of the track frame 1 can detect the track sag value respectively, and both detection elements on both sides of the track frame 1 can be communicatively connected to the control device. When both detection elements on both sides of the track frame 1 detect that the track sag value is less than the first standard sag value and greater than the second standard sag value, it indicates that the track tension meets the usage requirements. This is beneficial for further improving the adjustment accuracy of the track.

[0069] Here, the two sides of track frame 1 can be the left and right sides of track frame 1, respectively.

[0070] In an optional embodiment of the present invention, in order to prevent the tensioning device 5 from stretching or contracting during operation, the track tension adjustment device may further include a fixing device for locking or fixing the tensioning device 5.

[0071] The fixing device can be a hydraulic lock, so that when the control valve 8 moves to the neutral position, the tensioning device 5 can be stationary under the action of the hydraulic lock.

[0072] In an optional embodiment, the tensioning device 5 can be located at the rear end of the track frame 1 to adjust the track tension from the side of the track. This can prevent the track wheels from being affected by the weight of the work machinery and the squeezing action of the ground during the movement of the track wheels.

[0073] In an optional embodiment, the control device may further include a storage module, and the detection element may be communicatively connected to the storage module to transmit the detected track sag value to the storage module for storage. This allows data on changes in track tension to be recorded and retrieved by the operator.

[0074] Furthermore, the control device can also communicate with the display screen of the operating machinery to transmit the stored information to the display screen for easy observation by the operator.

[0075] The track tension adjustment method provided by the present invention is described below. The track tension adjustment method described below can be referred to in correspondence with the track tension adjustment device described above.

[0076] The present invention provides a track tension adjustment method, based on the track tension adjustment device described in any of the above embodiments, which may include the following steps:

[0077] The track sag value is detected and compared with the first standard sag value and the second standard sag value respectively.

[0078] When the track sag is greater than or equal to the first standard sag, the tensioning device 5 is extended.

[0079] When the track sag is less than or equal to the second standard sag, the tensioning device 5 is controlled to contract.

[0080] Here, the first standard overhang value is greater than the second standard overhang value.

[0081] With this setup, the tensioning device 5 is controlled to extend and retract based on the detection signal from the detection element, thereby adjusting the track tension. This allows for automatic adjustment of track tension, reducing errors caused by human judgment and operation, minimizing personnel involvement, and lowering maintenance and after-sales costs. Furthermore, it can detect whether the track is over-tensioned, thus preventing excessive tension that could reduce its service life.

[0082] In an optional embodiment of the present invention, when the sag value of the track is greater than or equal to the first standard sag value, the tensioning device 5 is controlled to extend, specifically as follows:

[0083] When the track sag is greater than or equal to the first standard sag, the valve core of the control valve 8 moves to the first working position, so that the inlet of the control valve 8 is connected to the first working port, and the driving medium enters the rodless chamber 53 of the tensioning device 5, so that the tensioning device 5 extends.

[0084] When the track sag is less than or equal to the second standard sag, the tensioning device 5 is controlled to contract, specifically as follows:

[0085] When the track sag is less than or equal to the second standard sag, the valve core of the control valve 8 moves to the second working position, so that the inlet of the control valve 8 is connected to the second working port, and the driving medium enters the rodless chamber 53 of the tensioning device 5, so that the tensioning device 5 contracts.

[0086] In an optional embodiment of the present invention, the track tension adjustment method may further include:

[0087] Before testing the track sag value, the support device of the control machine raises the track wheels.

[0088] This allows the track wheels to be suspended in the air, enabling the detection of track wheel tension in this suspended state. This improves the accuracy of track wheel tension detection, which in turn enhances the adjustment accuracy of the tensioning device 5 on the track, ensuring that the track tension meets usage requirements.

[0089] In an optional embodiment of the present invention, the track tension adjustment method may further include:

[0090] Before the support device of the control machine raises the track wheels, check whether the support device is equipped with a working device.

[0091] When it is detected that there is no working device on the support device, the support device of the working machine can be directly controlled to raise the track wheels;

[0092] When a working device is detected on the support device, the working device is removed first, and then the support device of the working machine is controlled to raise the track wheels.

[0093] This avoids the support device carrying the working device to support the track rollers, thus preventing the working device from supporting the track rollers and thus avoiding damage to the working device.

[0094] In an optional embodiment of the present invention, the track tension adjustment method may further include:

[0095] Before checking the track sag, control the track to reverse half a turn.

[0096] In this way, the track plate located above the track frame 1 can be moved to the bottom of the track frame 1. On the one hand, this can reduce the amount of dirt and other attachments on the track plate. On the other hand, it can make the track fit more closely with the drive wheel 2 and the guide wheel 3, which is conducive to improving the detection accuracy of the track sag value. This can improve the adjustment accuracy of the tensioning device 5 and prevent the track from being adjusted too tight or too loose.

[0097] In a first alternative embodiment, such as Figure 4 As shown, the operating machinery can be a rotary drilling rig, and the supporting device can be the upper mast of the rotary drilling rig. The method for adjusting the track tension of the rotary drilling rig may include:

[0098] Obtain the trigger signal for track tension adjustment;

[0099] Check whether drilling tools are installed on the upper mast of the rotary drilling rig;

[0100] When it is detected that no drilling tools are installed on the upper mast of the rotary drilling rig, control the upper mast to rotate to the side of the left track wheel, and control the upper mast to continue to rotate downward to support the left track wheel;

[0101] Control the left track wheel to rotate the track backward half a turn;

[0102] The overhang value of the track on the left track wheel is detected, and the overhang value of the track is compared with the first standard overhang value and the second standard overhang value respectively.

[0103] When the track sag is greater than or equal to the first standard sag, the tensioning device 5 is extended; when the track sag is less than or equal to the second standard sag, the tensioning device 5 is contracted to ensure that the track tension of the left track wheel meets the usage requirements.

[0104] When the detected overhang value of the left track wheel is less than the first standard overhang value but greater than the second standard overhang value, the upper mast is controlled to rotate upward so that the left track wheel contacts the ground; the upper mast is controlled to rotate to the side of the right track wheel and then the upper mast is controlled to continue rotating downward to support the right track wheel.

[0105] Control the right track wheel to rotate the track backward half a turn;

[0106] The overhang value of the track on the right track wheel is detected, and the overhang value of the track is compared with the first standard overhang value and the second standard overhang value respectively.

[0107] When the track sag is greater than or equal to the first standard sag, the tensioning device 5 is extended; when the track sag is less than or equal to the second standard sag, the tensioning device 5 is contracted to ensure that the track tension of the right track wheel meets the usage requirements.

[0108] In an optional embodiment, the method for adjusting the track tension of a rotary drilling rig may further include:

[0109] When it is detected that the drilling tool is installed on the upper mast of the rotary drilling rig, the upper mast is lowered so that the drilling tool touches the ground, and the system sends a "Remove drilling tool" message.

[0110] This makes it easier to remind operators to remove the drill string.

[0111] In a second optional embodiment, the working machinery can be a tracked excavator, wherein the method for adjusting the track tension of the tracked excavator may include:

[0112] Obtain the trigger signal for track tension adjustment;

[0113] Control the working arm of the tracked excavator to rotate downwards, so that the bucket of the tracked excavator contacts the ground and supports the track wheels of the tracked excavator;

[0114] Control the left and right track wheels of the tracked excavator to rotate backward half a turn;

[0115] The overhang values ​​of the tracks of the left and right track wheels were measured separately, and the overhang values ​​of the tracks of the left and right track wheels were compared with the first standard overhang value and the second standard overhang value, respectively.

[0116] Based on the comparison results, the tensioning device 5 on the left track wheel and the tensioning device 5 on the right track wheel are controlled to extend and retract respectively, so that the track tension of both the left and right track wheels meets the usage requirements.

[0117] The track wheel provided by the present invention is described below. The track wheel described below and the track tension adjustment device described above can be referred to in correspondence.

[0118] The present invention provides a track wheel that may include a track tension adjustment device as described in any of the above embodiments.

[0119] The beneficial effects achieved by the track wheel provided by this invention are consistent with the beneficial effects achieved by the track tension adjustment device provided by this invention. It can realize automatic adjustment of track tension, reduce errors caused by human judgment and operation, reduce personnel involvement, and reduce maintenance and after-sales costs. It can also detect whether the track is over-tensioned, so as to avoid excessive track tension and reduce its service life.

[0120] In an optional embodiment, the track roller may include a track frame 1, guide rollers 3, track rollers 7, tensioning device 5, support rollers 6, track assembly 4, and drive sprockets 2. The track rollers 7 may be mounted on the top of the track frame 1, the support rollers 6 may be mounted on the bottom of the track frame 1, the drive sprockets 2 may be located at the front end of the track frame 1, the guide rollers 3 may be located at the rear end of the track frame 1, the track assembly 4 may be fitted over the track frame 1, the drive sprockets 2, and the guide rollers 3, and the track rollers 7 may support the track assembly 4; the support rollers 6 may contact the track assembly 4; the tensioning device 5 may be mounted on the track frame 1 and located near the rear end of the track frame 1.

[0121] The working machinery provided by the present invention is described below. The working machinery described below can be referred to in correspondence with the track tension adjustment device, track wheel, or track tension adjustment method described above.

[0122] The present invention provides a working machine that may include a track tension adjustment device as described in any of the above embodiments, or a track wheel as described above, or perform a track tension adjustment method as described in any of the above embodiments.

[0123] The beneficial effects achieved by the working machinery provided by this invention are consistent with the beneficial effects achieved by the track tension adjustment device, track wheel, or track tension adjustment method provided by this invention, and therefore will not be repeated here.

[0124] It should be noted that the aforementioned operating machinery can be tracked rotary drilling rigs, tracked excavators, tracked cranes, or other tracked construction machinery.

[0125] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A track tension adjustment device, characterized in that, include: The tensioning device is telescopically mounted on the track frame of the operating machinery and is used to adjust the tension of the track. A detection element for detecting the sag value of the track; A control device, communicatively connected to the tensioning device and the detection element, is used to control the extension and retraction of the tensioning device based on the detection signal from the detection element. The control device is configured as follows: Before detecting the sag value of the track, the support device of the working machine is controlled to raise the track wheel and the track is controlled to reverse half a turn; When the detection element detects that the sag value of the track is greater than or equal to the first standard sag value, the tensioning device is controlled to extend. When the detection element detects that the sag value of the track is less than or equal to the second standard sag value, the tensioning device is controlled to contract. The first standard overhang value is greater than the second standard overhang value; Before controlling the support device of the working machine to support the track wheel, it is detected whether the support device is equipped with a working device. If the working device is not detected on the support device, the support device of the working machine is directly controlled to support the track wheel. If the working device is detected on the support device, the working device is removed first and then the support device of the working machine is controlled to support the track wheel. The operating machinery includes a rotary drilling rig, the supporting device is the upper mast of the rotary drilling rig, the operating device is a drilling tool, and the drilling tool can be installed on the upper mast; When it is detected that the drilling tool is not installed on the upper mast of the rotary drilling rig, the upper mast is controlled to rotate to the side of the left track wheel, and the upper mast is controlled to continue to rotate downward to support the left track wheel; After tensioning the track of the left track wheel, control the upper mast to rotate to the side of the right track wheel, and control the upper mast to continue rotating downward to support the right track wheel.

2. The track tension adjusting device according to claim 1, characterized in that, The tensioning device is a telescopic cylinder. The track tension adjustment device further includes a control valve. The first working port of the control valve is connected to the rodless chamber of the tensioning device, and the second working port of the control valve is connected to the rod chamber of the tensioning device. The control device is used to control the reversing of the control valve. The control device is configured as follows: When the detection element detects that the overhang value of the track is greater than or equal to the first standard overhang value, it controls the valve core of the control valve to move to the first working position so that the inlet of the control valve is connected to the first working port. When the detection element detects that the sag value of the track is less than or equal to the second standard sag value, it controls the valve core of the control valve to move to the second working position so that the inlet of the control valve is connected to the second working port.

3. The track tension adjusting device according to claim 1, characterized in that, The sag value of the track is the maximum distance between the bottom plate of the track frame and the track plate located below the track frame.

4. The track tension adjusting device according to claim 3, characterized in that, At least one detection element is provided on both sides of the track frame.

5. A method for adjusting track tension, characterized in that, The track tension adjustment device according to any one of claims 1-4 includes: Before detecting the track sag value, the support device of the operating machinery is controlled to lift the track wheels and control the track to rotate half a turn. The sag value of the track is detected, and the sag value of the track is compared with the first standard sag value and the second standard sag value respectively; When the sag value of the track is greater than or equal to the first standard sag value, the tensioning device is controlled to extend. When the sag value of the track is less than or equal to the second standard sag value, the tensioning device is controlled to contract. Before the support device of the operating machinery raises the track wheel, it is detected whether the support device is equipped with an operating device. If the operating device is not detected on the support device, the support device of the operating machinery is directly controlled to raise the track wheel. If the operating device is detected on the support device, the operating device is removed first and then the support device of the operating machinery is controlled to raise the track wheel. The operating machinery includes a rotary drilling rig, the supporting device is the upper mast of the rotary drilling rig, the operating device is a drilling tool, and the drilling tool can be installed on the upper mast; When it is detected that the drilling tool is not installed on the upper mast of the rotary drilling rig, the upper mast is controlled to rotate to the side of the left track wheel, and the upper mast is controlled to continue to rotate downward to support the left track wheel; After tensioning the track of the left track wheel, control the upper mast to rotate to the side of the right track wheel, and control the upper mast to continue rotating downward to support the right track wheel.

6. A track wheel, characterized in that, Includes the track tension adjustment device as described in any one of claims 1-4.

7. A type of operating machinery, characterized in that, Includes the track tension adjustment device as described in any one of claims 1-4, or the track wheel as described in claim 6, or performs the track tension adjustment method as described in claim 5.

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