Gearing, tensioner and method of controlling the gearing

Abstract

The application relates to the technical field of electric power construction equipment, and discloses a multiple pulley mechanism, a tensioner and a multiple pulley control method. The multiple pulley mechanism comprises a multiple pulley pin shaft, a first multiple pulley seat arranged on a first tension pulley and a second multiple pulley seat arranged on a second tension pulley; the first multiple pulley seat is provided with a first shaft hole; the second multiple pulley seat is provided with a second shaft hole; the multiple pulley pin shaft comprises a screw head, a threaded shaft section and a smooth shaft section in sequence along the axial direction of the multiple pulley pin shaft; the first shaft hole or the second shaft hole is provided with an internal thread; during multiple pulley operation, the first shaft hole is aligned with the second shaft hole, the multiple pulley pin shaft is used for penetrating through the first shaft hole and the second shaft hole, and the threaded shaft section is in threaded pair cooperation with the internal thread. The multiple pulley mechanism disclosed by the application is stable and reliable, the dismounting steps of positioning bolts are reduced, the structure is simple, the multiple pulley operation is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of power construction equipment technology, specifically relating to a parallel wheel mechanism, a tensioning machine, and a parallel wheel control method. Background Technology

[0002] Tensioners are typically used in the construction of overhead power lines to keep conductors, traction ropes, etc., under tension while they are laid out (or pulled).

[0003] The existing tension machine consists of two tension wheels arranged side by side, one on the left and one on the right, with a merging mechanism installed between them to achieve perfectly synchronized wire feeding. The existing merging mechanism uses positioning bolts to fix the merging pin to a merging seat on one side to prevent axial movement of the pin. Furthermore, during merging operation, the merging seats on both tension wheels need to be manually adjusted to keep them in the same position. Then, the positioning bolts of the merging pin are removed with a wrench; while adjusting the position of the right wheel, the merging pin is inserted from the left merging seat into the right merging seat; finally, the positioning bolts are used to tighten the merging pin to the merging seat on one side to prevent axial movement.

[0004] Therefore, the existing wheel pins need to be positioned and tightened by positioning bolts. Each time the wheel pins are inserted or removed during wheel-mounting operations, the positioning bolts need to be disassembled and reassembled, which is complicated, increases workload, and reduces work efficiency. Summary of the Invention

[0005] The purpose of this application is to provide a wheel-shaping mechanism, a tensioning machine, and a wheel-shaping control method to solve the problem that the existing wheel-shaping mechanism requires disassembly and assembly of the positioning bolts for each wheel-shaping operation, which is complicated, increases workload, and reduces work efficiency.

[0006] To achieve the above objectives, a first aspect of this application provides a parallel wheel mechanism applied to a tension machine, the tension machine including a first tension wheel and a second tension wheel arranged side by side; the parallel wheel mechanism includes: A first parallel wheel seat is disposed on the first tension wheel, and the first parallel wheel seat is provided with a first shaft hole; A second parallel wheel seat is disposed on the second tension wheel, and the second parallel wheel seat is provided with a second shaft hole; and The parallel pin shaft, along its own axis, includes a screwing head, a threaded shaft section, and a smooth shaft section in sequence; The first or second shaft hole is provided with an internal thread. During parallel wheel operation, the first shaft hole and the second shaft hole are aligned. The parallel wheel pin is used to connect the first shaft hole and the second shaft hole. The threaded shaft segment and the internal thread form a threaded pair.

[0007] As a further improvement to the above technical solution: In some embodiments, the first shaft hole includes a first smooth hole section and a threaded hole section along its own axial direction, wherein the threaded hole section forms the internal thread for mating with the threaded shaft section.

[0008] In some embodiments, the threaded hole section is located at the end of the first smooth hole section away from the second shaft hole; Wherein, the diameter of the threaded hole section is smaller than the diameter of the first smooth hole section, the maximum radial dimension of the screwing head is smaller than the diameter of the threaded shaft section, the diameter of the threaded shaft section is smaller than the diameter of the smooth shaft section, and the first smooth hole section and the smooth shaft section are clearance fitted.

[0009] In some embodiments, a first step is formed between the first aperture segment and the threaded hole segment; Wherein, the length of the optical axis segment is less than or equal to the length from the first step to the side of the first tension wheel near the second parallel wheel seat.

[0010] In some embodiments, the second shaft hole includes a second optical aperture segment and a third optical aperture segment along its own axial direction, wherein the third optical aperture segment is located at the end of the second optical aperture segment away from the first shaft hole; The aperture of the third optical aperture segment is smaller than that of the second optical aperture segment. A second step is formed between the second optical aperture segment and the third optical aperture segment to abut against the end face of the optical axis segment. The second optical aperture segment and the optical axis segment are in clearance fit.

[0011] In some implementations, the length from the end of the threaded shaft segment near the screw head to the end face of the optical shaft segment is defined as L, and the length from the end of the first shaft hole away from the second shaft hole to the second step is defined as L2, and L > L2.

[0012] In some embodiments, the end of the optical axis segment away from the threaded shaft segment is provided with a guide cone with a gradually decreasing diameter; And / or, the end of the second shaft hole facing the first shaft hole is provided with a guide cone with a gradually decreasing diameter.

[0013] To achieve the above objectives, a second aspect of this application provides a tension machine, including a first tension wheel, a second tension wheel, a first angle detection module, a second angle detection module, a control module, and a parallel wheel mechanism according to the first aspect. The first tension wheel and the second tension wheel are arranged side by side, the first tension wheel is provided with the first parallel wheel seat, and the second tension wheel is provided with the second parallel wheel seat; The first angle detection module is used to detect the first angle information of the first tension wheel; The second angle detection module is used to detect the second angle information of the second tension wheel; The control module is configured to, upon receiving a parallel wheel command, control the first tension wheel and the second tension wheel to return to the zero position based on the first angle information and the second angle information; The state when the first shaft hole and the second shaft hole are aligned is defined as the zero position state of the first tension wheel and the second tension wheel.

[0014] To achieve the above objectives, a third aspect of this application provides a parallel wheel control method for a tension machine, applied to the tension machine provided in the second aspect above, the parallel wheel control method comprising: S100: Confirmation that the parallel rotation command has been received; S200: Obtain the current first angle information and second angle information, and compare the first angle information and second angle information with 180°; S300: When the first angle information is greater than or equal to 180°, control the first tension wheel to reverse back to the zero position; S400: When the first angle information is less than 180°, control the first tension wheel to rotate clockwise back to the zero position; S500: When the second angle information is greater than or equal to 180°, control the second tension wheel to reverse back to the zero position; S600: When the second angle information is less than 180°, control the second tension wheel to rotate clockwise back to the zero position; S700: Completed the parallel operation.

[0015] As a further improvement to the above technical solution: Step S300 includes: If the first angle information is greater than or equal to 180°, determine whether the first angle information is greater than the first threshold Y; When the first angle information is less than or equal to the first threshold Y, the first tension wheel is controlled to reverse back to the zero position at a first speed until the first angle information is greater than the first threshold Y, and then the first tension wheel is controlled to reverse back to the zero position at a second speed, wherein the second speed is less than the first speed; Step S400 includes: If the first angle information is less than 180°, determine whether the first angle information is greater than the second threshold X; When the first angle information is greater than or equal to the second threshold X, control the first tension wheel to rotate clockwise back to zero at the first speed until the first angle information is less than the second threshold X, and control the first tension wheel to rotate clockwise back to zero at the second speed. Step S500 includes: If the second angle information is greater than or equal to 180°, determine whether the second angle information is greater than the first threshold Y; If the second angle information is less than or equal to the first threshold Y, control the second tension wheel to reverse back to the zero position at the third speed until the second angle information is greater than the first threshold Y, then control the second tension wheel to reverse back to the zero position at the fourth speed, wherein the fourth speed is less than the third speed; Step S600 includes: If the second angle information is less than 180°, determine whether the second angle information is greater than the second threshold X; If the second angle information is greater than or equal to the second threshold X, control the second tension wheel to rotate clockwise back to zero at the third speed until the second angle information is less than the second threshold X, then control the second tension wheel to rotate clockwise back to zero at the fourth speed.

[0016] Compared with the prior art, the parallel wheel mechanism, tension machine and parallel wheel control method provided in this application have at least the following technical advantages: The merging mechanism provided in this application ensures that the first and second shaft holes on the first and second merging wheel seats are aligned during merging operations. A merging wheel pin passes between the first and second shaft holes, and the threaded section on the merging wheel pin forms a threaded pair with the internal thread of the first or second shaft hole. Thus, by connecting the first and second merging wheel seats together via the merging wheel pin, the relative rotation between the first and second tension wheels is restricted, allowing them to rotate synchronously to complete the merging. The use of a threaded section to form a threaded pair with the internal thread of the first or second shaft hole utilizes the self-locking characteristic of the thread engagement to restrict axial movement of the merging wheel pin, ensuring stability and reliability. Furthermore, compared to existing structures, the merging wheel structure reduces the disassembly and assembly steps of the positioning bolts, making it structurally simpler, simplifying the merging operation, and improving work efficiency.

[0017] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] 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: Figure 1 This is a schematic diagram of a parallel wheel mechanism provided in an embodiment of this application; Figure 2 for Figure 1 A magnified view of a portion of point A in the middle; Figure 3 The front view and B-direction view of the parallel wheel pin shaft in the parallel wheel mechanism provided in the embodiments of this application; Figure 4 A schematic diagram of the structure of the first parallel wheel seat (a) and the second parallel wheel seat (b) in the parallel wheel mechanism provided in the embodiments of this application; Figure 5 This application provides another schematic diagram of the structure of the second parallel wheel seat; Figure 6 This is a schematic diagram of the structure of a tension machine provided in an embodiment of this application; Figure 7 A schematic diagram of the control section in a tension machine provided in an embodiment of this application; Figure 8 A flowchart illustrating a parallel wheel control method for a tension machine provided in an embodiment of this application; Figure 9 A schematic diagram of the tension wheel returning to zero (a) and the tension wheel returning to zero (b) in the parallel wheel control method for a tension machine provided in the embodiments of this application; Figure 10 This is a logic block diagram of the parallel wheel control method for a tension machine provided in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures 100. Parallel wheel mechanism; 110. Parallel wheel pin; 111. Twisting head; 112. Threaded shaft section; 113. Plain shaft section; 114. Guide cone; 120. First parallel wheel seat; 121. First shaft hole; 1210. First plain hole section; 1211. Threaded hole section; 1212. First step; 130. Second parallel wheel seat; 131. Second shaft hole; 1310. Second plain hole section; 1311. Third plain hole section; 1312. Second step; 1313. Guide cone opening; 200. Rack; 300. First tension wheel; 400. Second tension wheel; 500. First Angle Detection Module; 600. Second Angle Detection Module; 700. Control module. Detailed Implementation

[0020] 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.

[0021] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0022] Example 1 Please see Figure 1 and Figure 2 This embodiment provides a parallel wheel mechanism 100. The parallel wheel mechanism 100 is applied to a tension machine. The tension machine includes a first tension wheel 300 and a second tension wheel 400 arranged side by side. The first tension wheel 300 and the second tension wheel 400 are coaxially arranged.

[0023] In this embodiment, the parallel wheel mechanism 100 includes a parallel wheel pin 110, a first parallel wheel seat 120 disposed on the first tension wheel 300, and a second parallel wheel seat 130 disposed on the second tension wheel 400. The first parallel wheel seat 120 has a first shaft hole 121; the second parallel wheel seat 130 has a second shaft hole 131. The parallel wheel pin 110, along its own axial direction, sequentially includes a screwing head 111, a threaded shaft section 112, and a smooth shaft section 113. The screwing head 111 is used to cooperate with an external workpiece to screw the entire parallel wheel pin 110.

[0024] In some embodiments, the first shaft hole 121 is provided with an internal thread. During parallel wheel operation, the first shaft hole 121 is aligned with the second shaft hole 131, and the parallel wheel pin 110 is used to connect the first shaft hole 121 and the second shaft hole 131. The threaded shaft section 112 and the internal thread of the first shaft hole 121 form a threaded pair engagement. At this time, the smooth shaft section 113 is inserted into the second shaft hole 131.

[0025] In other embodiments, the second shaft hole 131 is provided with an internal thread. During parallel wheel operation, the first shaft hole 121 and the second shaft hole 131 are aligned, and the parallel wheel pin 110 is used to connect the first shaft hole 121 and the second shaft hole 131. The threaded shaft section 112 and the internal thread of the second shaft hole 131 form a threaded pair engagement. At this time, the smooth shaft section 113 is inserted into the first shaft hole 121.

[0026] Furthermore, the total length of the parallel wheel pin 110 is greater than the sum of the length of the first shaft hole 121, the length of the second shaft hole 131, and the width of the gap between the first shaft hole 121 and the second shaft hole 131. This ensures that the parallel wheel pin 110 has sufficient effective working length, and after the parallel wheel pin 110 is installed, ensures that the screw head 111 is exposed outside the first shaft hole 121 or the second shaft hole 131 for subsequent disassembly.

[0027] The parallel wheel mechanism 100 provided in this embodiment connects the first parallel wheel seat 120 and the second parallel wheel seat 130 together through the parallel wheel pin 110 when the tension machine needs to be paralleled, thereby restricting the relative rotation between the first tension wheel 300 and the second tension wheel 400, so that the first tension wheel 300 and the second tension wheel 400 rotate synchronously to complete the paralleling.

[0028] The threaded shaft section 112 is engaged with the internal thread of the first shaft hole 121 or the second shaft hole 131 to form a threaded pair. The self-locking characteristic of the thread engagement is used to limit the axial movement of the tandem pin shaft 110, which is stable and reliable.

[0029] Furthermore, compared to existing structures, the parallel wheel structure reduces the steps of disassembling and assembling positioning bolts, making it structurally simpler and simplifying the parallel wheel operation, thus improving work efficiency. It also avoids the safety hazards associated with disassembling and assembling pins in existing technologies.

[0030] Furthermore, this embodiment also provides a tension machine that utilizes the parallel wheel mechanism 100 provided in Embodiment 1. Thus, the tension machine also possesses the technical effects of the parallel wheel mechanism 100 described above.

[0031] Example 2 Please see Figure 1 and Figure 2 This embodiment provides a parallel wheel mechanism 100. The parallel wheel mechanism 100 is applied to a tension machine. This embodiment is an improvement on the technology of Embodiment 1 described above. Compared with Embodiment 1, the difference is as follows: In this embodiment, the first shaft hole 121 is provided with the internal thread. Specifically, the first shaft hole 121 includes a first smooth hole section 1210 and a threaded hole section 1211 along its own axial direction. The threaded hole section 1211 forms the internal thread for mating with the threaded shaft section 112. The threaded hole section 1211 is located at the end of the first smooth hole section 1210 away from the second shaft hole 131.

[0032] Please refer to the following: Figure 3 and Figure 4Furthermore, the diameter M2 of the threaded hole section 1211 is equal to the diameter M1 of the threaded shaft section 112, the diameter M2 of the threaded hole section 1211 is smaller than the diameter d1 of the first smooth hole section 1210, the maximum radial dimension e of the screwing head 111 is smaller than the diameter M1 of the threaded shaft section 112, the diameter M1 of the threaded shaft section 112 is smaller than the diameter d of the smooth shaft section 113, and the first smooth hole section 1210 and the smooth shaft section 113 are clearance-fitted.

[0033] Thus, in this embodiment, the first shaft hole 121 is a stepped hole, and the lateral pin 110 is a stepped shaft. During installation, the lateral pin 110 has a screw head 111 at one end inserted into the first smooth hole section 1210 of the first shaft hole 121, and then the entire lateral pin 110 is screwed until the screw head 111 exits through the threaded hole section 1211 of the first shaft hole 121. Furthermore, the first step 1212 formed by the stepped hole in the first shaft hole 121 can form a shoulder on the stepped shaft structure of the lateral pin 110 to achieve axial limiting engagement, preventing the lateral pin 110 from dislodging from the threaded hole section 1211.

[0034] Understandably, when not performing wheel merging operations, the merging pin 110 should be rotated so that it rests on the first merging seat 120. This avoids interference between the merging pin 110 and the second merging seat 130 as it rotates with the second tension wheel 400, allowing the first tension wheel 300 and the second tension wheel 400 to operate independently. When wheel merging is required, the second tension wheel 400 is adjusted so that the second shaft hole 131 aligns with the first shaft hole 121. By turning the merging pin 110, the smooth shaft section 113 of the merging pin 110 is fully inserted into the second shaft hole 131, completing the wheel merging process.

[0035] Please see Figure 2 and Figure 3 Furthermore, the length of the threaded shaft section 112 is greater than the length of the threaded hole section 1211, and the length L1 of the smooth shaft section 113 is less than or equal to the length L3 from the first step 1212 to the side of the first tension wheel 300 near the second parallel wheel seat 130. Thus, after the parallel wheel is released, the entire smooth shaft section 113 can be housed in the first tension wheel 300 by rotating the parallel wheel pin 110, thereby avoiding interference with the rotation of the second tension wheel 400.

[0036] Please refer to 2. Figure 3 and Figure 4The second shaft hole 131 includes a second optical aperture section 1310 and a third optical aperture section 1311 along its own axial direction. The third optical aperture section 1311 is located at the end of the second optical aperture section 1310 away from the first shaft hole 121. The aperture d3 of the third optical aperture section 1311 is smaller than the aperture d2 of the second optical aperture section 1310. A second step 1312 is formed between the second optical aperture section 1310 and the third optical aperture section 1311, which abuts against the end face of the optical axis section 113. The diameter d of the optical axis section 113 is larger than the aperture d3 of the third optical aperture section 1311 and has a clearance fit with the second optical aperture section 1310.

[0037] Thus, during the paralleling process, since the optical axis section 113 and the second optical hole section 1310 are in clearance fit, the optical axis section 113 can freely enter and exit the second optical hole section 1310. Furthermore, since the diameter d of the optical axis section 113 is larger than the aperture d3 of the third optical hole section 1311, after the optical axis section 113 is fully inserted into the second optical hole section 1310, the end face of the optical axis section 113 will abut against the second step 1312. At this time, the second step 1312 will exert a counterforce on the paralleling pin 110, which is beneficial for the axial locking of the paralleling pin 110 and better restricts its axial movement. In addition, the presence of the second step 1312 can also provide axial positioning for the paralleling pin 110 when it is inserted into the second shaft hole 131, preventing the paralleling pin 110 from passing through the second shaft hole 131 and falling out.

[0038] Please refer to 2. Figure 3 and Figure 4 In some embodiments, the length of the threaded shaft segment 112 from the end near the screwing head 111 to the end face of the smooth shaft segment 113 is defined as L, and the length of the first shaft hole 121 from the end away from the second shaft hole 131 to the second step 1312 is defined as L2, satisfying L > L2. This ensures that the tandem pin 110 has sufficient effective working length, and after the tandem pin 110 is installed, ensures that the screwing head 111 is exposed outside the first shaft hole 121 for subsequent installation and disassembly.

[0039] Please see Figure 3 and Figure 4 In some embodiments, the end of the optical shaft segment 113 away from the threaded shaft segment 112 is provided with a guide cone 114 with a gradually decreasing diameter. This facilitates the insertion of the tandem pin 110 into the second shaft hole 131.

[0040] Please see Figure 3 and Figure 5 In other examples, the end of the second shaft hole 131 facing the first shaft hole 121 is provided with a guide cone 1313 with a gradually decreasing diameter, thus forming a flared opening. This provides guidance for the insertion of the tandem pin 110 into the second shaft hole 131.

[0041] Please see Figures 1 to 6This embodiment also provides a parallel wheel mechanism. When the tension machine needs to be paralleled, the first parallel wheel seat 120 and the second parallel wheel seat 130 are connected together through the parallel wheel pin 110, thereby restricting the relative rotation between the first tension wheel 300 and the second tension wheel 400, so that the first tension wheel 300 and the second tension wheel 400 rotate synchronously to complete the paralleling.

[0042] The threaded shaft section 112 and the internal thread of the first shaft hole 121 form a threaded pair. The self-locking characteristic of the thread engagement is used to limit the axial movement of the tandem pin shaft 110, which is stable and reliable.

[0043] Furthermore, compared to existing structures, the parallel wheel structure reduces the steps of disassembling and assembling positioning bolts, making it structurally simpler and simplifying the parallel wheel operation, thus improving work efficiency. It also avoids the safety hazards associated with disassembling and assembling pins in existing technologies.

[0044] Furthermore, this embodiment also provides a tension machine that utilizes the parallel wheel mechanism 100 provided in Embodiment 1. Thus, the tension machine also possesses the technical effects of the parallel wheel mechanism 100 described above.

[0045] Example 3 Please see Figure 6 and Figure 7 This embodiment provides a tension machine. The tension machine includes a frame 200, a first tension wheel 300, a second tension wheel 400, a first angle detection module 500, a second angle detection module 600, a control module 700, and a parallel wheel mechanism 100 provided according to Embodiment 1 or Embodiment 2 above.

[0046] Please refer to the following: Figure 1 and Figure 2 The first tension wheel 300 and the second tension wheel 400 are arranged side by side and coaxially on the frame 200, and are driven to rotate by different rotary drive mechanisms. The inner ring of the first tension wheel 300 is provided with a first parallel wheel seat 120, and the inner ring of the second tension wheel 400 is provided with a second parallel wheel seat 130. The first parallel wheel seat 120 and the second parallel wheel seat 130 are close to each other.

[0047] Definitions: The length from the end face of the smooth shaft section 113 of the parallel wheel pin 110 to the end of the threaded shaft section 112 near the screw head 111 is L, and the length of the smooth shaft section 113 is L1; the distance from the end of the first shaft hole 121 away from the second parallel wheel seat 130 to the side of the first tension wheel 300 near the second tension wheel 400 is L3; the distance from the end of the first shaft hole 121 away from the second parallel wheel seat 130 to the end of the second smooth hole section 1310 away from the first parallel wheel seat 120 (second step 1312) is L2.

[0048] Where L1 < L3, this ensures that when the parallel pin 110 retracts into the first parallel seat 120, the optical shaft section 113 is entirely located within the first tension wheel 300, so that the first tension wheel 300 and the second tension wheel 400 are not interfered with by the parallel pin 110 when they work alone.

[0049] Furthermore, L≥L2, thus reserving sufficient working length for the parallel wheel pin 110, ensuring that the parallel wheel pin 110 can be inserted into the second shaft hole 131 during parallel wheel operation, thereby restricting the rotation of the second tension wheel 400 relative to the first tension wheel 300. Simultaneously, it ensures that the parallel wheel pin 110, after being inserted into the second shaft hole 131, abuts against the second step 1312, providing sufficient thread self-locking preload for the parallel wheel pin 110.

[0050] A first angle detection module 500 is disposed on the rotary drive end of the corresponding rotary drive mechanism, and is used to detect the first angle information of the first tension wheel 300. A second angle detection module 600 is disposed on the rotary drive end of the corresponding rotary drive mechanism, and is used to detect the second angle information of the second tension wheel 400.

[0051] The control module 700 is mounted on the frame 200 and configured to, upon receiving a wheel alignment command, control the first tension wheel 300 and the second tension wheel 400 to return to the zero position based on the first angle information and the second angle information.

[0052] In this embodiment, the state when the first shaft hole 121 and the second shaft hole 131 are aligned is defined as the zero position state of the first tension wheel 300 and the second tension wheel 400.

[0053] Optionally, the control module 700 includes a PLC controller.

[0054] Optionally, the first angle detection module 500 and the second angle detection module 600 can be selected as rotary encoders or angle encoders.

[0055] Please refer to the following: Figure 8 , Figure 9 and Figure 10 Furthermore, this embodiment also provides a parallel wheel control method for a tension machine, applied to the tension machine provided in Embodiment 3 above. The parallel wheel control method includes the following steps: S100: Confirmation that the parallel rotation command has been received; S200: Obtain the current first angle information and second angle information, and compare the first angle information and second angle information with 180° (i.e., determine the size relationship with 180°). S300: When the first angle information is greater than or equal to 180°, control the first tension wheel 300 to reverse back to the zero position; S400: When the first angle information is less than 180°, control the first tension wheel 300 to rotate clockwise back to the zero position; S500: When the second angle information is greater than or equal to 180°, control the second tension wheel 400 to reverse back to the zero position; S600: When the second angle information is less than 180°, control the second tension wheel 400 to rotate clockwise back to the zero position; S700: Complete the wheel merging operation. Finally, install the wheel merging pin 110.

[0056] As can be understood, the above description of clockwise rotation back to zero refers to rotating back to zero in a clockwise direction; similarly, counterclockwise rotation back to zero refers to rotating back to zero in a counterclockwise direction. Furthermore, there is no restriction on the order of steps S300 to S600.

[0057] In some embodiments, a positioning sensor can be provided on the corresponding second parallel wheel seat 130 to detect whether the parallel wheel pin 110 is installed in place, thereby improving the safety of the operation.

[0058] Optionally, the position sensor may be designed as a limit switch, contact switch, infrared sensor, laser sensor, proximity switch, or pressure sensor, etc. It should be understood that the above are merely illustrative examples and are not intended to limit the scope of protection of this application.

[0059] Please see Figure 9 and Figure 10 Furthermore, step S300 above includes: S310: If the first angle information is greater than or equal to 180°, determine whether the first angle information is greater than the first threshold Y; S320: When the first angle information is less than or equal to the first threshold Y, control the first tension wheel 300 to reverse back to the zero position at the first speed until the first angle information is greater than the first threshold Y, and control the first tension wheel 300 to reverse back to the zero position at the second speed, wherein the second speed is less than the first speed.

[0060] If, in step S320, the first angle information satisfies the condition of being greater than the first threshold Y, then the first tension wheel 300 is directly controlled to reverse back to the zero position at the second speed.

[0061] The above step S400 includes: S410: If the first angle information is less than 180°, determine whether the first angle information is greater than the second threshold X; S420: When the first angle information is greater than or equal to the second threshold X, control the first tension wheel 300 to rotate clockwise back to the zero position at the first speed until the first angle information is less than the second threshold X, and then control the first tension wheel 300 to rotate clockwise back to the zero position at the second speed.

[0062] If, in step S420, the first angle information satisfies the condition that it is less than the second threshold X, then the first tension wheel 300 is directly controlled to rotate clockwise back to the zero position at the second speed.

[0063] The above step S500 includes: S510: If the second angle information is greater than or equal to 180°, determine whether the second angle information is greater than the first threshold Y; S520: When the second angle information is less than or equal to the first threshold Y, control the second tension wheel 400 to reverse back to the zero position at the third speed until the second angle information is greater than the first threshold Y, and then control the second tension wheel 400 to reverse back to the zero position at the fourth speed, wherein the fourth speed is less than the third speed.

[0064] If, in step S520, the second angle information satisfies the condition of being greater than the first threshold Y, then the second tension wheel 400 is directly controlled to reverse back to the zero position at the fourth speed.

[0065] The above step S600 includes: S610: If the second angle information is less than 180°, determine whether the second angle information is greater than the second threshold X; S620: When the second angle information is greater than or equal to the second threshold X, control the second tension wheel 400 to rotate clockwise back to the zero position at the third speed until the second angle information is less than the second threshold X, then control the second tension wheel 400 to rotate clockwise back to the zero position at the fourth speed.

[0066] If the second angle information obtained in step 620 directly satisfies the condition of being less than the second threshold X, then the second tension wheel 400 is directly controlled to rotate clockwise back to the zero position at the fourth speed.

[0067] It should be noted that the first and third speeds mentioned above are full-speed return to zero, and the first and third speeds can be set to be the same or different. The second and fourth speeds mentioned above are slow return to zero, and the second and fourth speeds can be set to be the same or different.

[0068] The first threshold Y and the second threshold X mentioned above are both system settings. The setting range of the first threshold Y is 345°~355° (inclusive of the endpoint value), and the setting range of the second threshold X is 5°~15° (inclusive of the endpoint value).

[0069] In this embodiment, before performing the above step S100, the zero positions of the first tension wheel 300 and the second tension wheel 400 need to be calibrated. Specifically, the control module 700 receives the instruction for parallel wheel calibration, manually controls the first tension wheel 300 and the second tension wheel 400 to rotate so that the first shaft hole 121 and the second shaft hole 131 are aligned, then the parallel wheel pin 110 is connected to the first shaft hole 121 and the second shaft hole 131, and then the "Parallel Wheel Position Confirmation" button is clicked on the control interface to determine the current angle of the first angle detection module 500 and the second angle detection module 600 as the zero position of the parallel wheel.

[0070] The tension machine provided in this embodiment can achieve one-button parallel wheel control, improving the level of automation, reducing labor intensity, and increasing work efficiency and accuracy. Furthermore, it adopts the parallel wheel mechanism 100 provided in Embodiment 1 or Embodiment 2 above, simplifying the mechanism. On the one hand, it effectively prevents axial movement of the parallel wheel pin 110; on the other hand, it eliminates redundant structures in existing solutions, reduces operational steps, improves work efficiency, and eliminates safety hazards.

[0071] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "reverse," "forward," "axial," "radial," and "circumferential" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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 parallel wheel mechanism, characterized in that, Applied to a tension machine, the tension machine includes a first tension wheel (300) and a second tension wheel (400) arranged side by side; the parallel wheel mechanism (100) includes: A first parallel wheel seat (120) is disposed on the first tension wheel (300), and a first shaft hole (121) is provided on the first parallel wheel seat (120). A second parallel wheel seat (130) is disposed on the second tension wheel (400), and the second parallel wheel seat (130) is provided with a second shaft hole (131); and The parallel pin (110) includes, along its own axis, a screw head (111), a threaded shaft section (112), and a smooth shaft section (113). The first shaft hole (121) or the second shaft hole (131) is provided with an internal thread. During parallel wheel operation, the first shaft hole (121) and the second shaft hole (131) are aligned. The parallel wheel pin (110) is used to connect the first shaft hole (121) and the second shaft hole (131). The threaded shaft section (112) is engaged with the threaded pair of the internal thread. The first shaft hole (121) includes a first smooth hole section (1210) and a threaded hole section (1211) along its own axial direction. The threaded hole section (1211) forms the internal thread and is used to engage with the threaded pair of the threaded shaft section (112). The second shaft hole (131) includes a second smooth hole section (1310) and a third smooth hole section (1311) along its own axial direction. The third smooth hole section (1311) is located at the end of the second smooth hole section (1310) away from the first shaft hole (121). The aperture of the third aperture segment (1311) is smaller than that of the second aperture segment (1310). A second step (1312) is formed between the second aperture segment (1310) and the third aperture segment (1311) to abut against the end face of the optical axis segment (113). The second aperture segment (1310) and the optical axis segment (113) are in clearance fit.

2. The parallel wheel mechanism according to claim 1, characterized in that, The threaded hole section (1211) is located at the end of the first smooth hole section (1210) away from the second shaft hole (131); Wherein, the diameter of the threaded hole section (1211) is smaller than the diameter of the first smooth hole section (1210), the maximum radial dimension of the screw head (111) is smaller than the diameter of the threaded shaft section (112), the diameter of the threaded shaft section (112) is smaller than the diameter of the smooth shaft section (113), and the first smooth hole section (1210) and the smooth shaft section (113) are clearance-fitted.

3. The parallel wheel mechanism according to claim 2, characterized in that, A first step (1212) is formed between the first light hole section (1210) and the threaded hole section (1211). The length of the optical axis segment (113) is less than or equal to the length from the first step (1212) to the side of the first tension wheel (300) near the second parallel wheel seat (130).

4. The parallel wheel mechanism according to claim 1, characterized in that, The length of the threaded shaft segment (112) from the end near the screw head (111) to the end face of the optical shaft segment (113) is defined as L, and the length of the first shaft hole (121) from the end away from the second shaft hole (131) to the second step (1312) is defined as L2, and L > L2 is satisfied.

5. The parallel wheel mechanism according to any one of claims 1-4, characterized in that, The optical axis segment (113) is provided with a guide cone (114) with a gradually decreasing diameter at one end away from the threaded shaft segment (112). And / or, the second shaft hole (131) has a guide cone (1313) with a gradually decreasing diameter at one end facing the first shaft hole (121).

6. A tension machine, characterized in that, It includes a first tension wheel (300), a second tension wheel (400), a first angle detection module (500), a second angle detection module (600), a control module (700), and a parallel wheel mechanism (100) according to any one of claims 1-5; The first tension wheel (300) and the second tension wheel (400) are arranged side by side. The first tension wheel (300) is provided with a first parallel wheel seat (120), and the second tension wheel (400) is provided with a second parallel wheel seat (130). The first angle detection module (500) is used to detect the first angle information of the first tension wheel (300); The second angle detection module (600) is used to detect the second angle information of the second tension wheel (400); The control module (700) is configured to, upon receiving a parallel wheel command, control the first tension wheel (300) and the second tension wheel (400) to return to the zero position based on the first angle information and the second angle information; The state when the first shaft hole (121) and the second shaft hole (131) are aligned is defined as the zero position state of the first tension wheel (300) and the second tension wheel (400).

7. A method for controlling a parallel wheel in a tension machine, characterized in that, The parallel wheel control method, applied to the tension machine according to claim 6, comprises: S100: Confirmation that the parallel rotation command has been received; S200: Obtain the current first angle information and second angle information, and compare the first angle information and second angle information with 180°; S300: When the first angle information is greater than or equal to 180°, control the first tension wheel (300) to reverse back to the zero position; S400: When the first angle information is less than 180°, control the first tension wheel (300) to rotate clockwise back to zero; S500: When the second angle information is greater than or equal to 180°, control the second tension wheel (400) to reverse back to the zero position; S600: When the second angle information is less than 180°, control the second tension wheel (400) to rotate clockwise back to the zero position; S700: Completed the parallel operation.

8. The parallel wheel control method for a tension machine according to claim 7, characterized in that, Step S300 includes: If the first angle information is greater than or equal to 180°, determine whether the first angle information is greater than the first threshold Y; When the first angle information is less than or equal to the first threshold Y, the first tension wheel (300) is controlled to reverse back to the zero position at a first speed until the first angle information is greater than the first threshold Y, and then the first tension wheel (300) is controlled to reverse back to the zero position at a second speed, wherein the second speed is less than the first speed; Step S400 includes: If the first angle information is less than 180°, determine whether the first angle information is greater than the second threshold X; When the first angle information is greater than or equal to the second threshold X, the first tension wheel (300) is controlled to rotate clockwise back to zero at the first speed until the first angle information is less than the second threshold X, and then the first tension wheel (300) is controlled to rotate clockwise back to zero at the second speed. Step S500 includes: If the second angle information is greater than or equal to 180°, determine whether the second angle information is greater than the first threshold Y; When the second angle information is less than or equal to the first threshold Y, the second tension wheel (400) is controlled to reverse back to the zero position at a third speed until the second angle information is greater than the first threshold Y. Then, the second tension wheel (400) is controlled to reverse back to the zero position at a fourth speed, wherein the fourth speed is less than the third speed. Step S600 includes: If the second angle information is less than 180°, determine whether the second angle information is greater than the second threshold X; When the second angle information is greater than or equal to the second threshold X, the second tension wheel (400) is controlled to rotate clockwise back to zero at the third speed until the second angle information is less than the second threshold X, and then the second tension wheel (400) is controlled to rotate clockwise back to zero at the fourth speed.

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