Separating device capable of arranging spacing of separating sheets

Abstract

The utility model provides a separating device capable of arranging the distance between separating pieces, and belongs to the technical field of metal processing. The technical problems that in the prior art, the separation adjusting mode is complex, and the winding efficiency is low are solved. The separating device capable of arranging the spacing of the separating pieces comprises a hydraulic expansion shaft frame, a hydraulic expansion shaft is arranged on the hydraulic expansion shaft frame, a plurality of separating piece units are arranged on the hydraulic expansion shaft, and a poking claw used for poking the separating piece units to move in the axial direction of the hydraulic expansion shaft is arranged on one side of the hydraulic expansion shaft. And the pusher dog is connected with a pusher dog driving mechanism capable of driving the pusher dog to move radially and axially along the hydraulic expansion shaft. The device has the advantages of high production efficiency, automatic interval setting, uniform pressure distribution, high reliability, long service life and the like.

Description

Technical Field

[0001] The utility model belongs to the field of metal processing, relates to a winding machine device, and in particular to a separating device capable of arranging the spacing between separating sheets. Background Art

[0002] A winder is a mechanical device used to neatly rewind processed steel strip layer by layer into coils, storing the coils as finished products or continuing them along the production line. Typically located at the end of a production line, a winder is equipped with a separator to stabilize and tighten the strip. However, with the increasing demand for production efficiency and product customization, existing technologies are unable to meet the demands of processing strips of varying widths or simultaneously processing multiple rolls. This has led to extensive research and the development of various solutions.

[0003] For example, a Chinese patent document discloses a coiler [Application No. 201220512295.7] that includes a drive motor, a coiler spindle, and a support frame. Specifically, the support frame is equipped with a separator comprising a roller with an adjustable separator. This separator maintains stability during operation, prevents coils from crossing, and can be configured to process steel strips of varying widths.

[0004] Although the above solution can be set to process steel strips of different widths, the separation adjustment method is cumbersome, and only one separator cannot separate multiple coils at the same time, which reduces the winding efficiency. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a separation device which has a simple separation adjustment method, high winding efficiency and can arrange the spacing between separation sheets.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: the separator device capable of arranging the spacing between separators includes a hydraulic expansion shaft frame, a hydraulic expansion shaft is provided on the hydraulic expansion shaft frame, a plurality of separator units are provided on the hydraulic expansion shaft, and a pusher claw for moving the separator unit axially along the hydraulic expansion shaft is provided on one side of the hydraulic expansion shaft, and the pusher claw is connected to a pusher claw driving mechanism capable of driving the pusher claw to move radially and axially along the hydraulic expansion shaft.

[0007] Initially, the hydraulic expansion shaft is unexpanded. The pusher mechanism drives the pusher claw to move the separator unit to the designated position. The pusher claw then moves the pusher claw away from the expansion shaft, causing the shaft to expand and secure the separator unit in place. The entire separator unit position setting process is manual and convenient, and multiple separator units can be secured in different locations, enabling simultaneous processing of multiple steel strips and improving processing efficiency.

[0008] In the above-mentioned separating device capable of arranging the spacing between the separating sheets, the hydraulic expansion shaft includes an inner shaft and an outer shaft tube sleeved on the inner shaft. Shaft journals are fixed at both ends of the inner shaft and the outer shaft tube. The outer diameter of the inner shaft is less than or equal to the inner diameter of the outer shaft tube. An annular expansion tube liquid storage cavity is provided between the inner shaft, the outer shaft tube and the two shaft journals, which can make the outer shaft tube expand radially when liquid enters. At least one end of the expansion tube liquid inlet cavity is connected to the rotary liquid supply assembly. By fixing the inner shaft and the outer shaft tube through the shaft journals, the overall hydraulic expansion shaft is more stable and can withstand greater pressure and torque. An annular expansion tube liquid storage cavity is arranged between the inner shaft, the outer shaft tube and the shaft journals. By controlling the liquid inlet and outlet through the rotary liquid supply assembly, the outer shaft tube can expand or contract radially, enabling the expansion and contraction of the expansion shaft to be realized.

[0009] In the above-mentioned separating device capable of arranging the spacing between the separating sheets, the rotary liquid supply assembly includes a rotary liquid supply device arranged at the outer end of the shaft journal. The shaft journal is provided with a first liquid passing channel axially penetrating through both ends thereof. The outer end of the first liquid passing channel is connected to the rotary liquid supply device, and the inner end of the first liquid passing channel is connected to the second liquid passing channel of the inner shaft. The first liquid passing channel and the second liquid passing channel are coaxially arranged. The second liquid passing channel is communicated with the annular expansion tube liquid storage cavity through N radial liquid distribution structures distributed along the axial direction of the second liquid passing channel, where N≥1. By connecting the rotary liquid supply device provided with the liquid passing channel on the shaft journal, it can ensure that the liquid enters the inner shaft stably and continuously, and then is supplied to the annular expansion tube liquid storage cavity, improving the liquid supply efficiency. The first liquid passing channel and the second liquid passing channel are coaxially arranged and are communicated with the annular expansion tube liquid storage cavity through N radial liquid distribution structures. Such a design can ensure that the liquid is evenly distributed in the annular expansion tube liquid storage cavity, avoiding excessive or too little local pressure.

[0010] In the above-mentioned separating device capable of arranging the spacing between the separating sheets, the radial liquid distribution structure includes M radial liquid distribution channels distributed along the circumferential direction of the second liquid passing channel, where M≥1. The inner end of the radial liquid distribution channel is communicated with the second liquid passing channel, and the outer end is communicated with the annular expansion tube liquid storage cavity. The radial liquid distribution structure ensures that the liquid entering from the second liquid passing channel can be evenly distributed to each part of the annular expansion tube liquid storage cavity through M radial liquid distribution channels distributed along the circumferential direction of the second liquid passing channel, avoiding the situation of too much or too little local liquid. Since the liquid can enter the annular expansion tube liquid storage cavity evenly and quickly, the outer shaft tube can expand radially more evenly, thereby improving the efficiency and effect of the expansion tube.

[0011] In the above-mentioned separating device capable of arranging the spacing of the separating sheets, the journal is connected to the hydraulic expansion shaft frame through a bearing housing. A plug is provided at the inner end of the journal. The outer wall of the plug is connected to the inner wall of the outer shaft tube, and a number of axially distributed sealing rings are provided between the plug and the outer shaft tube. A third liquid passage is axially penetrated through the plug. The first liquid passage is communicated with the second liquid passage through the third liquid passage. The plug and the journal are integrated. The journal is connected to the hydraulic expansion shaft frame through a bearing housing to disperse the load borne by the journal and ensure the stability and reliability of the hydraulic expansion shaft during operation. The outer wall of the plug is connected to the inner wall of the outer shaft tube, and a number of axially distributed sealing rings are provided between the plug and the outer shaft tube. This design can effectively prevent liquid leakage from the connection.

[0012] In the above-mentioned separating device capable of arranging the spacing of the separating sheets, the inner shaft is a hollow shaft, and the radial liquid distribution passage and the second liquid passage are formed by pipelines. The radial liquid distribution passage and the second liquid passage are formed by pipelines. The passages formed by pipelines have smooth inner walls, reducing the friction and eddy current of the liquid, ensuring that the liquid flows more smoothly, reducing the flow resistance and energy loss, and improving the flow efficiency of the liquid.

[0013] In the above-mentioned separating device capable of arranging the spacing of the separating sheets, the separating sheet unit includes a separating sheet annular seat. At least two arc-shaped separating sheets are provided on the outer wall of the separating sheet annular seat and are circumferentially adjacent to each other. All the arc-shaped separating sheets enclose a separating sheet ring. The inner ends of the arc-shaped separating sheets are embedded in the annular separating sheet installation groove of the separating sheet annular seat and are fixed by a detachable structure. The arc-shaped separating sheets enclose a separating sheet ring and are fixed on the separating sheet annular seat. This structure can disperse the pressure and enhance the stability of the installation of the separating sheet unit. And since the arc-shaped separating sheets are fixed by a detachable structure, when the separating sheets are worn or damaged, new separating sheets can be conveniently replaced, which is convenient for maintenance.

[0014] In the above-mentioned separating device capable of arranging the spacing of the separating sheets, the detachable structure includes a countersunk bolt axially penetrated through the separating sheet annular seat and the arc-shaped separating sheet and screwed thereto. The two ends of the countersunk bolt are flush with the separating sheet annular seat or do not exceed the two ends of the separating sheet annular seat. The thickness of the arc-shaped separating sheet gradually increases from the outer end to the middle, and an arc-shaped chamfer is provided at the outer end of the arc-shaped separating sheet. The design of the countersunk bolt makes the bolt head not protrude from the surface of the separating sheet annular seat, reducing the risk of collision or wear caused by the protrusion of the bolt.

[0015] In the aforementioned separator device capable of adjusting the spacing between separators, the pusher claw drive mechanism includes a slide rail mounted on a pusher claw drive frame, a slide seat mounted on the slide rail, a screw threaded through the slide seat capable of driving the pusher claw along the slide rail, one end of the screw being connected to the screw driver; an extension frame mounted on the slide seat, a linear driver mounted on the extension frame, the output end of the linear driver being connected to the pusher claw. The sliding cooperation between the slide rail and the slide seat provides the pusher claw drive mechanism with high stability during operation. The cooperation between the screw and the screw driver ensures precise movement of the slide seat on the slide rail, thereby enabling the pusher claw to move the separator units with high precision and ensuring accurate adjustment of the spacing between the separator units.

[0016] In the aforementioned separating device capable of arranging the spacing between the separators, the finger includes a finger base, which is fixed to the output end of the linear actuator via a plurality of bolts. A paddle is provided at the bottom of the finger base. The upper end of the paddle is integrally connected to the finger base, and a reinforcing rib is provided between the paddle and the finger base. A shaft clearance notch is provided at the lower end of the paddle. The reinforcing rib between the paddle and the finger base enhances the structural strength of the finger, enabling it to withstand greater workloads. The shaft clearance notch at the lower end of the paddle prevents interference and collision when the finger moves the separator unit, ensuring smooth movement of the finger.

[0017] Compared to existing technologies, the advantages of this separator device, which can adjust the spacing between separators, are: 1. It can simultaneously separate multiple coils with reliable positioning, effectively improving production efficiency. 2. It can automatically set the spacing without manual operation. 3. It features a multi-channel hydraulic supply structure, providing greater pressure while ensuring uniform pressure distribution. 4. It has a specialized leak-proof structure for high reliability. 5. The pusher claws have a reinforced structure and a special shape to avoid interference and accidental damage, ensuring a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a hydraulic expansion shaft provided by the utility model.

[0019] Figure 2 The utility model provides Figure 1 Enlarge the structural diagram at point A.

[0020] Figure 3 This is a schematic diagram of the structure of the separator unit provided by the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the pusher claw provided by the utility model.

[0022] Figure 5 It is a schematic diagram of the top structure of the pusher claw driving mechanism provided by the utility model.

[0023] Figure 6 This is a structural diagram of the pusher claw driving mechanism provided by the utility model.

[0024] In the figure, the hydraulic expansion shaft frame 1, the bearing seat 11, the hydraulic expansion shaft 2, the expansion tube liquid storage chamber 21, the radial liquid separation structure 211, the radial liquid separation channel 212, the inner shaft 22, the outer shaft tube 23, the shaft neck 24, the plug 241, the sealing ring 242, the rotary liquid supply assembly 25, the first liquid passage 251, the second liquid passage 252, the third liquid passage 253, the rotary liquid supply device 254, the separator unit 3, the separator annular seat 31, the arc-shaped separator 32, the separator ring 33, the separator mounting groove 34, the detachable structure 35, the countersunk bolt 351, the pusher claw 4, the pusher claw base 41, the pusher claw 42, the reinforcing rib 43, the shaft body yielding notch 44, the pusher claw drive mechanism 5, the pusher claw drive frame 51, the slide rail 52, the slide seat 53, the screw 54, the screw driver 55, the extension frame 56, and the linear driver 57. DETAILED DESCRIPTION

[0025] like Figures 1 to 5 As shown, a separator device capable of arranging the spacing between separators includes a hydraulic expansion shaft frame 1, a hydraulic expansion shaft 2 is provided on the hydraulic expansion shaft frame 1, a plurality of separator units 3 are provided on the hydraulic expansion shaft 2, and a pusher pawl 4 is provided on one side of the hydraulic expansion shaft 2 for moving the separator units 3 axially along the hydraulic expansion shaft 2. The pusher pawl 4 is connected to a pusher pawl driving mechanism 5 capable of driving the pusher pawl 4 to move radially and axially along the hydraulic expansion shaft 2.

[0026] In this embodiment, a hydraulic expansion shaft 2 is sleeved with multiple separator units 3. After the desired separator interval is input into the pusher-claw drive mechanism 5, the pusher-claw drive mechanism 5 drives the pusher claw 4 to extend between the separator units 3 and move the separator units 3 to the desired position. The expansion shaft 2 then expands to secure the separator units 3 in the desired position. This allows the entire separator interval setting process to be fully automated, eliminating the need for manual operation. Furthermore, the presence of multiple separator units 3 allows for multiple intervals to be set, enabling simultaneous processing of multiple rolls of material, improving efficiency.

[0027] More specifically, the hydraulic expansion shaft 2 includes an inner shaft 22 and an outer shaft tube 23 sleeved on the inner shaft 22. Shaft necks 24 are fixed at both ends of the inner shaft 22 and the outer shaft tube 23. The outer diameter of the inner shaft 22 is less than or equal to the inner diameter of the outer shaft tube 23. An annular expansion tube liquid storage chamber 21 is provided between the inner shaft 22, the outer shaft tube 23 and the two shaft necks 24, which can cause the outer shaft tube 23 to expand radially when liquid enters. At least one end of the expansion tube liquid storage chamber 21 is connected to the rotating liquid supply component 25.

[0028] In this embodiment, the rotating liquid supply assembly 25 inputs liquid into the expansion tube liquid storage cavity 21 to achieve the expansion and contraction of the hydraulic expansion shaft 2. When the liquid flows into and fills the expansion tube liquid storage cavity 21, the expansion tube liquid storage cavity 21 drives the outer shaft tube 23 to expand, which is the expansion state. At this time, the overall diameter of the hydraulic expansion shaft 2 becomes larger; when the liquid flows out of the expansion tube liquid storage cavity 21, the expansion tube liquid storage cavity 21 drives the outer shaft tube 23 to contract, which is the contraction state. At this time, the overall diameter of the hydraulic expansion shaft 2 becomes smaller.

[0029] As Figure 1 shown, the rotating liquid supply assembly 25 includes a rotating liquid supply device 254 provided at the outer end of the journal 24. The journal 24 is provided with a first liquid passing channel 251 axially penetrating through both ends thereof. The outer end of the first liquid passing channel 251 is connected to the rotating liquid supply device 254, and the inner end of the first liquid passing channel 251 is connected to the second liquid passing channel 252 of the inner shaft 22. The first liquid passing channel 251 and the second liquid passing channel 252 are coaxially arranged. The second liquid passing channel 252 is communicated with the annular expansion tube liquid storage cavity 21 through two radial liquid distribution structures 211 distributed axially along the second liquid passing channel 252.

[0030] More specifically, the radial liquid distribution structure 211 includes two radial liquid distribution channels 212 distributed circumferentially along the second liquid passing channel 252. The inner end of the radial liquid distribution channel 212 is communicated with the second liquid passing channel 252, and the outer end is communicated with the annular expansion tube liquid storage cavity 21.

[0031] More specifically, the journal 24 is connected to the hydraulic expansion shaft frame 1 through a bearing seat 11. A plug 241 is provided at the inner end of the journal 24. The outer wall of the plug 241 is connected to the inner wall of the outer shaft tube 23, and three sealing rings 242 are provided between the plug 241 and the outer shaft tube 23 and distributed axially. A third liquid passing channel 253 is axially penetrated through the plug 241. The first liquid passing channel 251 is communicated with the second liquid passing channel 252 through the third liquid passing channel 253. The plug 241 and the journal 24 are integrated. The inner shaft 22 is a hollow shaft, and the radial liquid distribution channel 212 and the second liquid passing channel 252 are formed by pipelines.

[0032] In this embodiment, the rotating liquid supply device 254 conveys liquid to the expansion tube liquid storage cavity 21 in sequence through the first liquid passing channel 251, the third liquid passing channel 253 and the second liquid passing channel 252. The first liquid passing channel 251, the third liquid passing channel 253 and the second liquid passing channel 252 are all coaxially designed. For this liquid supply function, the three are equivalent to the same liquid delivery pipeline.

[0033] And through the radial liquid distribution channels 212 of the radial liquid distribution structure 211 of the second liquid passing channel 252, the liquid can be efficiently and evenly conveyed to the expansion tube liquid storage cavity 21, so that the surface pressure distribution of the hydraulic expansion shaft 2 is uniform and the expansion time is short, which is more efficient.

[0034] The plug 241 is connected to the shaft neck 24 as a whole, the outer wall of the plug 241 is connected to the inner wall of the outer shaft tube 23, and three axially distributed sealing rings 242 are provided between the plug 241 and the outer shaft tube 23. This sealing structure can enable the hydraulic expansion shaft 2 to withstand greater pressure. The three sealing rings 242 can maintain the overall sealing even if some of the sealing rings 242 are damaged, thereby avoiding the outflow of liquid and causing pressure relief.

[0035] like Figure 2 As shown, the separator unit 3 includes a separator annular seat 31, and two arc-shaped separators 32 are distributed along the circumferential direction and tightly attached to each other in the circumferential direction on the outer wall of the separator annular seat 31. All the arc-shaped separators 32 are combined to form a separator ring 33, and the inner ends of the arc-shaped separators 32 are embedded in the annular separator mounting groove 34 of the separator annular seat 31 and fixed by a detachable structure 35.

[0036] More specifically, the detachable structure 35 includes a countersunk bolt 351 axially extending through the separator annular seat 31 and threadedly connected to the arcuate separator 32. Both ends of the countersunk bolt 351 are flush with the separator annular seat 31. The arcuate separator 32 gradually increases in thickness from the outer end to the middle, and has an arcuate chamfer on its outer end.

[0037] In this embodiment, the arc-shaped separators 32 are fixed together by a detachable structure 35, which facilitates convenient adjustment of the number of separator units 3 on the hydraulic expansion shaft 2, and the design of the countersunk bolts 351 can avoid additional interference that may cause damage to the structure.

[0038] like Figures 3 to 5 As shown, the pusher claw drive mechanism 5 includes a slide rail 52 arranged on a pusher claw drive frame 51, a slide seat 53 is provided on the slide rail 52, a lead screw 54 is passed through the slide seat 53 and can be driven to move along the slide rail 52, and one end of the lead screw 54 is connected to the lead screw driver 55; an extension frame 56 is provided on the slide seat 53, and a linear driver 57 is provided on the extension frame 56, and the output end of the linear driver 57 is connected to the pusher claw 4.

[0039] More specifically, the claw 4 includes a claw base 41, which is fixed to the output end of the linear actuator 57 by a number of bolts. A paddle 42 is provided at the bottom of the claw base 41. The upper end of the paddle 42 is connected to the claw base 41 as a whole, and a reinforcing rib 43 is provided between the paddle 42 and the claw base 41. A shaft clearance notch 44 is provided at the lower end of the paddle 42.

[0040] The working principle of this embodiment is that in the initial state, the separator unit 3 is sleeved on the hydraulic expansion shaft 2, the hydraulic expansion shaft 2 naturally contracts, the slide 53 of the pusher dog driving mechanism 5 is located at the initial position of the slide rail 52, and the pusher dog 4 does not contact the separator unit 3.

[0041] After the required tape size is input into the pawl driving mechanism 5, the lead screw driver 55 is activated to drive the lead screw 54 to rotate, causing the slide block 53 to move along the slide rail 52 to the required position. Then the linear driver 57 is activated to push the pawl base 41 and the paddle 42 to move, insert the paddle 42 between the separator units 3, and then the paddle 42 avoids obstacles such as the hydraulic expansion shaft 2 through the shaft body relief notch 44, and precisely moves the separator unit 3 to the required position.

[0042] After the separator unit 3 is in the set position, the rotating liquid supply device 254 is rotated to allow the liquid to enter the annular expansion tube liquid storage cavity 21 through the first liquid passage 251, the third liquid passage 253, and the second liquid passage 252 of the journal 24, providing liquid pressure for the hydraulic expansion shaft 2. The hydraulic expansion shaft 2 expands to clamp the separator unit 3 and fix it in the specified position. Then the tape can pass between the set separator units 3, and the winding machine processes and winds it.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0044] Although terms such as hydraulic expansion shaft frame, bearing seat, hydraulic expansion shaft, expansion tube liquid storage cavity, radial liquid distribution structure, radial liquid distribution channel, inner shaft, outer shaft tube, journal, plug, sealing ring, rotating liquid supply assembly, first liquid passage, second liquid passage, third liquid passage, rotating liquid supply device, separator unit, separator annular seat, arc-shaped separator, separator ring, separator installation groove, detachable structure, counterbore bolt, pawl, pawl base, paddle, reinforcing rib, shaft body relief notch, pawl driving mechanism, pawl driving frame, slide rail, slide block, lead screw, lead screw driver, extension frame, linear driver, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only to more conveniently describe and explain the essence of the present invention, and interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A separating device capable of arranging the spacing between separating sheets, characterized in that The invention comprises a hydraulic expansion shaft frame (1), wherein the hydraulic expansion shaft frame (1) is provided with a hydraulic expansion shaft (2), wherein the hydraulic expansion shaft (2) is provided with a plurality of separator units (3), and a pusher claw (4) for moving the separator unit (3) axially along the hydraulic expansion shaft (2) is provided on one side of the hydraulic expansion shaft (2), wherein the pusher claw (4) is connected to a pusher claw driving mechanism (5) capable of driving the pusher claw (4) to move radially and axially along the hydraulic expansion shaft (2).

2. The spacer device capable of arranging the spacing between spacers according to claim 1, characterized in that The hydraulic expansion shaft (2) includes an inner shaft (22) and an outer shaft tube (23) sleeved on the inner shaft (22), and shaft necks (24) are fixed at both ends of the inner shaft (22) and the outer shaft tube (23), and the outer diameter of the inner shaft (22) is less than or equal to the inner diameter of the outer shaft tube (23). An annular expansion tube liquid storage chamber (21) is provided between the inner shaft (22), the outer shaft tube (23) and the two shaft necks (24), and can cause the outer shaft tube (23) to expand radially when liquid enters. At least one end of the expansion tube liquid storage chamber (21) is connected to a rotating liquid supply component (25).

3. The spacer device capable of arranging the spacing between spacers according to claim 2, wherein The rotary liquid supply assembly (25) includes a rotary liquid supply device (254) arranged on the outer end of the shaft neck (24), and the shaft neck (24) is provided with a first liquid passage (251) axially passing through both ends thereof, the outer end of the first liquid passage (251) is connected to the rotary liquid supply device (254), and the inner end of the first liquid passage (251) is connected to the second liquid passage (252) of the inner shaft (22), the first liquid passage (251) and the second liquid passage (252) are coaxially arranged, and the second liquid passage (252) is connected to the annular expansion tube liquid storage chamber (21) through N radial liquid separation structures (211) distributed along the axial direction of the second liquid passage (252), and N ≥ 1.

4. The spacer device capable of arranging the spacing between spacers according to claim 3, wherein The radial liquid separation structure (211) includes M radial liquid separation channels (212) distributed circumferentially along the second liquid passage (252), where M≥1. The inner ends of the radial liquid separation channels (212) are connected to the second liquid passage (252), and the outer ends are connected to the annular expansion tube liquid storage chamber (21).

5. The spacer device capable of arranging the spacer pitch according to claim 4, characterized in that, The inner end of the shaft neck (24) is provided with a plug (241), the outer wall of the plug (241) is connected to the inner wall of the outer shaft tube (23), and a plurality of axially distributed sealing rings (242) are provided between the plug (241) and the outer shaft tube (23). A third liquid passage (253) is axially passed through the plug (241), and the first liquid passage (251) is connected to the second liquid passage (252) through the third liquid passage (253). The plug (241) and the shaft neck (24) are connected as a whole.

6. The spacer device capable of arranging the spacer spacing according to claim 5, characterized in that, The inner shaft (22) is a hollow shaft, and the radial liquid separation channel (212) and the second liquid passage channel (252) are formed as pipelines.

7. The spacer device capable of arranging the spacer pitch according to any one of claims 1-6, characterized in that, The described spacer unit (3) includes a spacer ring seat (31). At least two arc-shaped spacers (32) that are circumferentially distributed and closely adjacent to each other in the circumferential direction are provided on the outer wall of the spacer ring seat (31). All the arc-shaped spacers (32) enclose a spacer ring (33). The inner ends of the arc-shaped spacers (32) are embedded in the annular spacer mounting groove (34) of the spacer ring seat (31) and fixed by a detachable structure (35).

8. The spacer device capable of arranging the spacing between spacers according to claim 7, characterized in that, The described detachable structure (35) includes a countersunk bolt (351) axially passing through the spacer ring seat (31) and threadedly connected to the arc-shaped spacer (32). Both ends of the countersunk bolt (351) are flush with the spacer ring seat (31) or do not extend beyond both ends of the spacer ring seat (31).

9. The spacer device capable of arranging the spacer spacing according to any one of claims 1-6, characterized in that, The described pawl driving mechanism (5) includes a slide rail (52) provided on a pawl driving frame (51). A slide seat (53) is provided on the slide rail (52). A lead screw (54) capable of driving the slide seat (53) to move along the slide rail (52) is passed through the slide seat (53). One end of the lead screw (54) is connected to a lead screw driver (55). An extension frame (56) is provided on the slide seat (53). A linear driver (57) is provided on the extension frame (56). The output end of the linear driver (57) is connected to a pawl (4).

10. The spacer device capable of arranging the spacing between spacer sheets according to any one of claims 1-6, characterized in that, The described pawl (4) includes a pawl base (41). The pawl base (41) is fixed to the output end of the linear driver (57) by a plurality of bolts. A pawl piece (42) is provided at the bottom of the pawl base (41). The upper end of the pawl piece (42) is integrally connected to the pawl base (41). A reinforcing rib (43) is provided between the pawl piece (42) and the pawl base (41). An axial body relief notch (44) is provided at the lower end of the pawl piece (42).

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