Self-adaptive guide

Abstract

The invention discloses a self-adaptive guide and relates to the technical field of rolling guides. A self-adaptive guide and guard device comprises a base, a box body is installed on the base, and the box body comprises a flow channel with the middle communicated. The box body is connected with a pipe body communicated with the flow channel, a spline shaft and a spline housing are arranged on the outer wall of the pipe body, the spline shaft is rotationally connected with the pipe body, the spline housing is fixedly connected with the pipe body, and the spline shaft is in transmission connection with the spline housing; the spline shaft is connected with a transmission mechanism, the transmission mechanism is connected with two connecting arms, and each connecting arm is rotationally connected with a guide roller; a movable gap is formed between the spline shaft and the spline housing, and the spline shaft is configured to rotate relative to the spline housing; and an elastic mechanism connected to the spline shaft is mounted on the spline sleeve. By means of the clamping device, profile steel with small size changes can be clamped in an ideal state all the time.

Description

Technical Field

[0001] The present application relates to the technical field of rolling guides, and in particular to an adaptive guide. Background Art

[0002] During the rolling process, steel sections need to pass through the rolling rollers one by one. Since there is an installation distance between the front and rear rollers that affects the flow stability of the steel sections, guides are generally installed between the front and rear rollers. Specifically, guides refer to devices installed before and after the roller pass during the steel section rolling process to help the rolled piece enter and exit the roller pass accurately and stably in a predetermined direction and state. On the one hand, guides facilitate the stable and accurate flow of the steel sections, and on the other hand, guides can also ensure stable deformation of the steel sections in the pass.

[0003] A rolling guide is disclosed, which includes a base, a box body is fixedly connected to the base, the box body includes a flow channel in the middle, two mounting shafts are rotatably mounted on the box body, and a guide roller for guiding the flow of the profiled steel is mounted on each mounting shaft. The cylindrical profiled steel enters from one end of the flow channel and is discharged from the other end of the flow channel under the clamping and guidance of the two guide rollers.

[0004] In order for the guide to successfully complete the above actions, the installation of the guide must meet the following standards: the two guide rollers must be consistent with the center line of the guide, i.e. the rolling center line; the two guide rollers must not be installed tilted; the difference between the gap between the two guide rollers and the diameter of the guided steel section must be controlled within a certain size to present an ideal state in which the guide rollers can easily rotate with the steel section, such as plus or minus 10 wires.

[0005] The ideal rotation state of the guide roller cannot always be guaranteed: the installed guide roller usually cannot change its position during operation. If the structural dimensions of the guided profile change slightly due to factors such as cooling problems and quality problems, the steel section may be clamped loosely or tightly, which will cause the guide roller to be deformed or the steel section to move unsteadily.

[0006] Therefore, how to ensure that the two guide rollers always maintain an ideal clamping state for the steel section with slight size changes is an urgent problem to be solved. Summary of the invention

[0007] In order to always keep the clamping of steel sections with slight dimensional changes in an ideal state, the present application provides an adaptive guide.

[0008] The present application provides an adaptive guide adopting the following technical solution: An adaptive guide, comprising a base, a box body is mounted on the base, the box body comprises a flow channel running through the middle; the box body is connected to a tube body communicating with the flow channel, a spline shaft and a spline sleeve are arranged on the outer wall of the tube body, the spline shaft is rotatably connected to the tube body, and the spline sleeve is fixedly connected to the tube body; the spline shaft is connected to a transmission mechanism, the transmission mechanism is connected to two connecting arms, and each of the connecting arms is rotatably connected to a guide roller; There is an active gap between the spline shaft and the spline sleeve, and the spline shaft is configured to be able to rotate relative to the spline sleeve; an elastic mechanism connected to the spline shaft is installed on the spline sleeve; The spline shaft has a first limit position and a second limit position relative to the spline sleeve. Under normal conditions, the spline shaft is in the first limit position; when the two guide rollers move away from each other, the spline shaft moves from the first limit position to the second limit position; when the two guide rollers approach each other, the spline shaft moves from the second limit position to the first limit position; when the spline shaft is at any position within the motion range from the first limit position to the second limit position, the elastic mechanism will always provide the spline shaft with a force to move from the second limit position to the first limit position.

[0009] By adopting the above technical solution, it is first necessary to preset the distance between the two guide rollers to be slightly smaller than the diameter of the cylindrical steel section. When the steel section passes between the two guide rollers, the two guide rollers will be stretched to clamp and guide the steel section. No matter how slightly the outer diameter of the steel section changes, when the steel section enters between the two guide rollers, the two guide rollers will move away from each other, the spline shaft will move from the first extreme position to the second extreme position, and the elastic mechanism will provide the two guide rollers with a clamping force toward the steel section.

[0010] In the present application, the movable gap provides the two guide rollers with the ability to slightly move, and the elastic mechanism provides the two guide rollers with a force to stably clamp the steel section so that the steel section is clamped and maintained in an ideal state.

[0011] Preferably, the transmission mechanism comprises a bevel gear 1, which is connected to the spline shaft and can rotate with the spline shaft; a transmission assembly is installed on the tube body corresponding to each connecting arm, each of the transmission assemblies is in transmission connection with the bevel gear 1, and each of the transmission assemblies is connected to the corresponding connecting arm; When the two guide rollers move away from each other synchronously, thereby driving the two connecting arms to move away from each other synchronously, the two transmission components will drive the bevel gears to rotate, thereby driving the spline shaft to rotate from the first extreme position to the second extreme position.

[0012] By adopting the above technical solution, the two guide rollers move away from each other synchronously, which will drive the two connecting arms to move away from each other synchronously. At this time, driven by the two transmission components, the bevel gear will rotate and drive the spline shaft to rotate from the first extreme position to the second extreme position. In this application, the movement of the two guide rollers is synchronous, so the steel section can be guaranteed to be centered when being clamped and guided.

[0013] Preferably, the transmission assembly includes bevel gear two, bevel gear three, a transmission gear and a transmission rack, the tube body is provided with a receiving ring groove one and a receiving ring groove two, the bevel gear two and bevel gear three are both rotatably connected to the receiving ring groove one, the transmission gear is rotatably connected to the receiving ring groove two, the transmission rack is slidably connected to the receiving ring groove two, the bevel gear two is transmission connected to the bevel gear one, the bevel gear three is transmission connected to the bevel gear two, the transmission gear is connected to the bevel gear three and the transmission gear and the bevel gear three can rotate at the same time, the transmission rack is transmission connected to the transmission gear, the connecting arm is connected to the transmission rack and the connecting arm and the transmission rack can move simultaneously.

[0014] By adopting the above technical solution, the movement of the guide roller will drive the connecting arm to move and thus drive the transmission gear to rotate. The rotation of the transmission gear will drive the transmission rack to move and drive bevel gear three, bevel gear two and bevel gear one to rotate.

[0015] Preferably, the second receiving ring groove is provided with a slide groove, the transmission rack is provided with a slider, and the slider is slidably connected to the slide groove.

[0016] Preferably, the elastic mechanism includes a spring, an installation ring groove is opened on the inner wall of the spline sleeve, a force adjustment component is installed on the spline sleeve, the spring is arranged in the installation ring groove, one end of the spring is connected to the spline shaft, and the other end is connected to the force adjustment component, and the force adjustment component is configured to be able to adjust the compression force of the spring.

[0017] By adopting the above technical solution, the spring can provide a force for the spline shaft to always move in the direction of the first limit position, and this force can provide the two guide rollers with a force to clamp the profile steel. The force adjustment component can be used to adjust the compression force of the spring to adjust the size of the force of the two guide rollers clamping the profile steel.

[0018] Preferably, the force adjustment component includes a rotating ring rotatably connected to the mounting ring groove, and the spring is fixedly connected to the rotating ring; the spline sleeve is provided with an arc-shaped waist groove, the rotating ring is connected with a linkage plate, the linkage plate is inserted into the arc-shaped waist groove, and the end of the linkage plate away from the rotating ring is connected with an operating rod; the operating rod is provided with a docking hole 1, and the spline sleeve is provided with a plurality of docking holes 2, the docking hole 1 is docked with one of the docking holes 2 and are jointly connected with a locking piece, and each of the docking holes 2 can dock with the docking hole 1.

[0019] By adopting the above technical solution, the operating rod can be used to drive the linkage plate to rotate, thereby driving one end of the spring to rotate to adjust the compression force of the spring. After the operating rod is rotated to the position where the docking hole one and the docking hole two are docked, the locking piece can be used to lock the operating rod to ensure that the spring does not move.

[0020] Preferably, the spline shaft is a rectangular spline shaft, and the spline sleeve is a rectangular spline sleeve.

[0021] Preferably, a trumpet feed pipe communicating with the flow channel is installed on the box body.

[0022] By adopting the above technical solution, the trumpet feed pipe can facilitate the transportation of steel sections from the outside to the flow channel.

[0023] In summary, the present invention includes at least one of the following beneficial technical effects: 1. First, it is necessary to preset the distance between the two guide rollers to be slightly smaller than the diameter of the cylindrical steel section. When the steel section passes between the two guide rollers, the two guide rollers will be stretched to clamp and guide the steel section. No matter how slightly the outer diameter of the steel section changes, when the steel section enters between the two guide rollers, the two guide rollers will move away from each other, the spline shaft will move from the first extreme position to the second extreme position, and the elastic mechanism will provide the two guide rollers with a clamping force toward the steel section. In this application, the movable gap provides the two guide rollers with the ability to micro-move, and the elastic mechanism provides the two guide rollers with a stable clamping force for the steel section so that the steel section is clamped and maintained in an ideal state; 2. The two guide rollers move away from each other synchronously, which will drive the two connecting arms to move away from each other synchronously. At this time, driven by the two transmission components, the bevel gear will rotate and drive the spline shaft to rotate from the first extreme position to the second extreme position. In this application, the movement of the two guide rollers is synchronous, so the steel section can be guaranteed to be centered when it is clamped and guided; 3. The operating rod can be used to drive the linkage plate to rotate, thereby driving one end of the spring to rotate to adjust the compression force of the spring. After the operating rod is rotated to the position where the docking hole 1 and the docking hole 2 are docked, the locking piece can be used to lock the operating rod to ensure that the spring does not move. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an adaptive guide in an embodiment of the present application; Figure 2 is a cross-sectional view of an adaptive guide; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 It is a structural diagram used to reflect the activity gap; Figure 5 It is a schematic diagram of the cross-sectional structure used to reflect the force adjustment component.

[0025] Markings in the accompanying drawings: 1. base; 2. box body; 21. flow channel; 22. horn feed pipe; 3. tube body; 31. receiving ring groove one; 32. receiving ring groove two; 321. slide groove; 4. spline shaft; 5. spline sleeve; 51. movable gap; 52. mounting ring groove; 53. arc waist groove; 54. docking hole two; 6. transmission mechanism; 61. bevel gear one; 62. transmission assembly; 621. bevel gear two; 622. bevel gear three; 623. transmission gear; 624. transmission rack; 7. connecting arm; 71. guide roller; 8. elastic mechanism; 81. spring; 82. force adjustment assembly; 821. rotating ring; 822. linkage plate; 823. operating lever; 8231. docking hole one; 824. locking piece. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The embodiment of the present application discloses an adaptive guide, which is used to stably guide cylindrical steel sections with slight size changes.

[0029] Reference Figure 1 and Figure 2 An adaptive guide includes a base 1, a box body 2 is installed on the base 1, the box body 2 includes a flow channel 21 running through the middle, the flow channel 21 is arranged horizontally, a trumpet feed pipe 22 connected to the flow channel 21 is installed at the left end of the box body 2, and a pipe body 3 connected to the flow channel 21 is installed at the left end of the box body 2.

[0030] The steel section enters the flow channel 21 from the right end trumpet feed pipe 22 and flows out from the left side pipe body 3.

[0031] Reference Figure 1 and Figure 3 The outer wall of the tube body 3 is provided with a spline shaft 4 and a spline sleeve 5. The spline shaft 4 includes a through hole running through the middle. In the present application, the spline shaft 4 is specifically a rectangular spline shaft, and the spline sleeve 5 is specifically a rectangular spline sleeve. The spline shaft 4 is rotatably connected to the tube body 3 through a bearing, and the spline sleeve 5 is fixedly connected to the tube body 3. The spline shaft 4 and the spline sleeve 5 are coaxially arranged; the spline shaft 4 is connected to a transmission mechanism 6, and the transmission mechanism 6 is connected to two connecting arms 7, and each connecting arm 7 is rotatably connected to a guide roller 71. Combined Figure 4There is an active gap 51 between the spline shaft 4 and the spline sleeve 5, and the spline shaft 4 can rotate relative to the spline sleeve 5; an elastic mechanism 8 connected to the spline shaft 4 is installed on the spline sleeve 5.

[0032] Due to the existence of the active gap 51, the spline shaft 4 has a first limit position and a second limit position relative to the spline sleeve 5. Under normal conditions, the spline shaft 4 is in the first limit position; when the two guide rollers 71 move away from each other, the spline shaft 4 moves from the first limit position to the second limit position; when the two guide rollers 71 approach each other, the spline shaft 4 moves from the second limit position to the first limit position; when the spline shaft 4 is in any position within the range of motion from the first limit position to the second limit position, the elastic mechanism 8 will always provide the spline shaft 4 with a force to move from the second limit position to the first limit position.

[0033] Before use, it is first necessary to preset the distance between the two guide rollers 71 to be slightly smaller than the diameter of the cylindrical steel section. Then, when the steel section passes between the two guide rollers 71, the two guide rollers 71 will be spread apart to clamp and guide the steel section.

[0034] In the present application, no matter how slightly the outer diameter of the steel section changes, when the steel section enters between the two guide rollers 71, the two guide rollers 71 will move away from each other, the spline shaft 4 will move from the first limit position to the second limit position, and the movable gap 51 provides the two guide rollers 71 with the ability to slightly move. The elastic mechanism 8 will provide the spline shaft 4 with a force to move from the second limit position to the first limit position, thereby providing the two guide rollers 71 with a clamping force toward the steel section, and this clamping force can ensure that the steel section moves stably, that is, the steel section is clamped and guided to maintain an ideal state.

[0035] Reference Figure 3 The transmission mechanism 6 includes a bevel gear 61, which is coaxially arranged with the spline shaft 4. The bevel gear 61 is connected to the spline shaft 4 and can rotate with the spline shaft 4. A transmission component 62 is installed on the tube body 3 corresponding to each connecting arm 7, and each transmission component 62 is transmission-connected to the bevel gear 61, and each transmission component 62 is connected to the corresponding connecting arm 7.

[0036] When the two guide rollers 71 move away from each other synchronously, thereby driving the two connecting arms 7 to move away from each other synchronously, the two transmission components 62 will drive the bevel gear 1 61 to rotate, thereby driving the spline shaft 4 to rotate from the first extreme position to the second extreme position.

[0037] Reference Figure 3The two transmission components 62 have the same structure. Take the upper transmission component 62 as an example: the transmission component 62 includes a bevel gear 2 621, a bevel gear 3 622, a transmission gear 623 and a transmission rack 624. The tube body 3 is provided with a receiving ring groove 1 31 and a receiving ring groove 2 32. The receiving ring groove 1 31 is located on the left side of the receiving ring groove 2 32. The bevel gear 2 621 and the bevel gear 3 622 are both rotatably connected to the receiving ring groove 1 31 through a bearing. The bevel gear 2 621 is arranged horizontally, and the bevel gear 3 622 is arranged vertically. The bevel gear 1 61, the bevel gear 2 621 and the bevel gear 3 622 are arranged from left to right in sequence. The transmission The gear 623 is rotatably connected to the receiving ring groove 2 32, the transmission gear 623 is arranged horizontally, the transmission rack 624 is slidably connected to the receiving ring groove 2 32, the transmission rack 624 can move up and down, the bevel gear 2 621 is transmission-connected to the bevel gear 1 61, the bevel gear 3 622 is transmission-connected to the bevel gear 2 621, the transmission gear 623 is connected to the bevel gear 3 622 and the transmission gear 623 and the bevel gear 3 622 can rotate together, the transmission rack 624 is transmission-connected to the transmission gear 623, the connecting arm 7 is connected to the transmission rack 624 and the connecting arm 7 and the transmission rack 624 can move up and down at the same time. It should be noted that: in order to ensure the rationality of the transmission, that is, when the two guide rollers 71 are moved away from each other, the two bevel gears 2 621 can move in the same direction to drive the bevel gear 1 61 to rotate, the upper transmission gear 623 is arranged in front of the transmission rack 624, and the lower transmission gear 623 is arranged behind the transmission rack 624.

[0038] When the two guide rollers 71 and the two connecting arms 7 move away from each other synchronously, the two transmission racks 624 move away from each other, and then driven by the two bevel gears three 622 and the two bevel gears two 621, in the right view, the bevel gear one 61 will rotate clockwise, and the spline shaft 4 will rotate clockwise. At this time, the spline shaft 4 moves from the first extreme position to the second extreme position.

[0039] Reference Figure 3 In order to guide the movement of the transmission rack 624 and prevent the transmission rack 624 from moving too far, the receiving ring groove 32 is provided with a dovetail type slide groove 321, which is arranged vertically and does not penetrate. The transmission rack 624 is provided with a dovetail type slider, which is slidably connected to the slide groove 321.

[0040] Reference Figure 3 The elastic mechanism 8 includes a spring 81, a mounting ring groove 52 is opened on the inner wall of the spline sleeve 5, a force adjustment component 82 is installed on the spline sleeve 5, the spring 81 is transversely arranged in the mounting ring groove 52, the left end of the spring 81 is connected to the spline shaft 4, and the right end of the spring 81 is connected to the force adjustment component 82. The force adjustment component 82 can adjust the compression force of the spring 81.

[0041] The spring 81 can provide a force for the spline shaft 4 to always move in the direction of the first limit position. This force can provide the two guide rollers 71 with a force to clamp the steel. Specifically, no matter the spline shaft 4 is located at the first limit position, the second limit position, or any position between the first limit position and the second limit position, the spring 81 is in a compressed state. The force adjustment component 82 can be used to adjust the compression force of the spring 81 to adjust the size of the force of the two guide rollers 71 clamping the steel. It should be noted that when installing the spring 81, it is necessary to pay attention to the rotation direction of the spring 81. In this solution, when viewed from the right, the spring 81 is a right-handed spring.

[0042] Reference Figure 3 and Figure 5 The force adjustment assembly 82 includes a rotating ring 821 rotatably connected to the mounting ring groove 52, and the right end of the spring 81 is fixedly connected to the rotating ring 821; the right end of the spline sleeve 5 is provided with an arc-shaped waist groove 53, and the rotating ring 821 is connected with a linkage plate 822, which is inserted into the arc-shaped waist groove 53, and the linkage plate 822 can rotate along the circumferential direction of the spline sleeve 5 in the arc-shaped waist groove 53, and the right end of the linkage plate 822 is connected with an operating rod 823. The operating rod 823 is provided with a docking hole 1 8231, and the spline sleeve 5 is provided with a plurality of docking holes 2 54 along its own circumferential direction. The docking hole 1 8231 is docked with one of the docking holes 2 54 and is commonly connected with a locking member 824, and the locking member 824 is preferably a detachable pin, and each docking hole 2 54 can dock with the docking hole 1 8231.

[0043] The action of adjusting the compression force of the spring 81 is to tighten the spring 81 as an example: remove the locking piece 824, use the operating rod 823 to drive the linkage plate 822 to rotate clockwise, thereby driving one end of the spring 81 to rotate to tighten the spring 81, after the operating rod 823 is rotated to the position where the docking hole 8231 and the docking hole 54 are docked, use the locking piece 824 to lock the operating rod 823 again to ensure that the spring 81 does not move.

[0044] An implementation principle of an adaptive guide in the embodiment of the present application is: Before use, it is first necessary to preset the distance between the two guide rollers 71 to be slightly smaller than the diameter of the cylindrical steel section, place the steel section into the trumpet feed pipe 22 and subsequently enter the flow channel 21, and then the steel section will reach between the two guide rollers 71. At this time, the two guide rollers 71 will be stretched open to clamp and guide the steel section. When the two guide rollers 71 are stretched open, the spline shaft 4 rotates from the first extreme position to the second extreme position, and the spring 81 provides the spline shaft 4 with a force that always moves in the direction of the first extreme position. This force can provide the two guide rollers 71 with a force to clamp the steel section.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive guide, characterized in that: The invention comprises a base (1), a box body (2) is mounted on the base (1), the box body (2) comprises a flow channel (21) running through the middle; the box body (2) is connected to a tube body (3) communicating with the flow channel (21), a spline shaft (4) and a spline sleeve (5) are provided on the outer wall of the tube body (3), the spline shaft (4) and the tube body (3) are rotatably connected, and the spline sleeve (5) and the tube body (3) are fixedly connected; the spline shaft (4) is connected to a transmission mechanism (6), the transmission mechanism (6) is connected to two connecting arms (7), and each of the connecting arms (7) is rotatably connected to a guide roller (71); There is a movable gap (51) between the spline shaft (4) and the spline sleeve (5), and the spline shaft (4) is configured to be rotatable relative to the spline sleeve (5); an elastic mechanism (8) connected to the spline shaft (4) is installed on the spline sleeve (5); The spline shaft (4) has a first limit position and a second limit position relative to the spline sleeve (5). Under normal conditions, the spline shaft (4) is in the first limit position; when the two guide rollers (71) move away from each other, the spline shaft (4) moves from the first limit position to the second limit position; when the two guide rollers (71) move toward each other, the spline shaft (4) moves from the second limit position to the first limit position; when the spline shaft (4) is in any position within the range of motion from the first limit position to the second limit position, the elastic mechanism (8) will always provide the spline shaft (4) with a force to move from the second limit position to the first limit position.

2. The adaptive guide according to claim 1, characterized in that: The transmission mechanism (6) comprises a bevel gear (61), the bevel gear (61) being connected to the spline shaft (4) and the bevel gear (61) and the spline shaft (4) being capable of rotating together; a transmission assembly (62) is mounted on the tube body (3) corresponding to each connecting arm (7), each of the transmission assemblies (62) is in transmission connection with the bevel gear (61), and each of the transmission assemblies (62) is connected to the corresponding connecting arm (7); When the two guide rollers (71) move away from each other synchronously, thereby driving the two connecting arms (7) to move away from each other synchronously, the two transmission components (62) drive the bevel gear 1 (61) to rotate, thereby driving the spline shaft (4) to rotate from the first extreme position to the second extreme position.

3. The adaptive guide according to claim 2, characterized in that: The transmission assembly (62) comprises a second bevel gear (621), a third bevel gear (622), a transmission gear (623) and a transmission rack (624); the tube body (3) is provided with a first receiving ring groove (31) and a second receiving ring groove (32); the second bevel gear (621) and the third bevel gear (622) are both rotatably connected to the first receiving ring groove (31); the transmission gear (623) is rotatably connected to the second receiving ring groove (32); and the transmission rack (624) is slidably connected to the second receiving ring groove (32). The bevel gear 2 (621) is transmission-connected to the bevel gear 1 (61), the bevel gear 3 (622) is transmission-connected to the bevel gear 2 (621), the transmission gear (623) is connected to the bevel gear 3 (622), and the transmission gear (623) and the bevel gear 3 (622) can rotate together, the transmission rack (624) is transmission-connected to the transmission gear (623), and the connecting arm (7) is connected to the transmission rack (624), and the connecting arm (7) and the transmission rack (624) can move simultaneously.

4. The adaptive guide according to claim 3, characterized in that: The second receiving ring groove (32) is provided with a slide groove (321), and the transmission rack (624) is provided with a slider, and the slider is slidably connected to the slide groove (321).

5. The adaptive guide according to claim 1, characterized in that: The elastic mechanism (8) comprises a spring (81), an inner wall of the spline sleeve (5) is provided with a mounting ring groove (52), a force adjustment component (82) is installed on the spline sleeve (5), the spring (81) is arranged in the mounting ring groove (52), one end of the spring (81) is connected to the spline shaft (4), and the other end is connected to the force adjustment component (82), and the force adjustment component (82) is configured to be able to adjust the compression force of the spring (81).

6. The adaptive guide according to claim 5, characterized in that: The force adjustment component (82) comprises a rotating ring (821) rotatably connected to the mounting ring groove (52), and the spring (81) is fixedly connected to the rotating ring (821); the spline sleeve (5) is provided with an arc-shaped waist groove (53), the rotating ring (821) is connected with a linkage plate (822), the linkage plate (822) is inserted into the arc-shaped waist groove (53), and the end of the linkage plate (822) away from the rotating ring (821) is connected with an operating rod (823); the operating rod (823) is provided with a docking hole 1 (8231), and the spline sleeve (5) is provided with a plurality of docking holes 2 (54), the docking hole 1 (8231) is docked with one of the docking holes 2 (54) and is commonly connected with a locking piece (824), and each of the docking holes 2 (54) can be docked with the docking hole 1 (8231).

7. The adaptive guide according to claim 1, characterized in that: The spline shaft (4) is a rectangular spline shaft, and the spline sleeve (5) is a rectangular spline sleeve.

8. The adaptive guide according to claim 1, characterized in that: The box body (2) is provided with a trumpet feed pipe (22) which is in communication with the flow channel (21).

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