Yunyan Dedicated Line Tobacco Processing Equipment: Re-drying Leaf Tobacco Flexible Slicing Tobacco Processing Technology

Abstract

This invention discloses a flexible slicing process for re-dried tobacco leaves in the cigarette manufacturing process of a dedicated tobacco processing line in Yunnan. Belonging to the field of cigarette processing technology, it includes a feeding slicing frame with a tobacco conveyor belt embedded on its inner side. An upstream observation port is provided on the front end of the feeding slicing frame corresponding to the tobacco conveyor belt, and a first transparent window is embedded on the inner side of the upstream observation port. A feeding slicing box is provided on the side end of the feeding slicing frame corresponding to the tobacco conveyor belt. In this invention, when the re-dried tobacco pack is cut at the tail end, the overall mass of the re-dried tobacco pack is significantly reduced, and the contact area between the bottom of the re-dried tobacco pack and the tobacco conveyor belt is reduced, resulting in decreased stability. At this time, the two pushers will apply a pushing force to the re-dried tobacco pack, thereby triggering a contact baffle between the re-dried tobacco pack and the contact baffle, effectively ensuring the slicing quality is maintained even at the tail end of the re-dried tobacco pack slicing blade.

Description

Technical Field

[0001] This invention belongs to the field of cigarette processing technology, and relates to a flexible slicing and tobacco processing equipment for re-dried tobacco leaves, particularly to a flexible slicing and tobacco processing equipment for the re-dried tobacco leaves in the Yunnan Tobacco dedicated line tobacco processing process. Background Technology

[0002] The existing tobacco processing equipment for flexible slicing of re-dried tobacco leaves still has some shortcomings in use. The main problem is that in the later stages of slicing after re-drying, the length of the tobacco pack is greatly reduced, and the support surface at the bottom is small. This makes it easy for the pack to tilt when it comes into contact with the slicing blade, which in turn affects the slicing quality.

[0003] Therefore, there is an urgent need to provide new equipment for the flexible slicing and tobacco processing of re-dried tobacco leaves to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the flexible slicing and tobacco processing equipment for re-dried tobacco leaves during the later stages of slicing, where the length of the re-dried tobacco bag is significantly reduced, resulting in a smaller support surface at the bottom and making it prone to tilting when in contact with the slicing blade, thus affecting the slicing quality. This invention provides a flexible slicing and tobacco processing equipment for re-dried tobacco leaves in the Yunyan dedicated line tobacco processing process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The equipment for making flexible slicing tobacco leaves in the special production line of Yunnan tobacco includes a feeding slicing frame, a tobacco leaf conveyor belt is embedded on the inner side of the feeding slicing frame, and an upstream observation port is opened on the front end of the feeding slicing frame corresponding to the position of the tobacco leaf conveyor belt. A first transparent window is embedded on the inner side of the upstream observation port.

[0007] The side end of the feeding slicing machine frame is provided with a feeding slicing box corresponding to the position of the tobacco conveyor belt, and a tobacco slicing component is provided on the feeding slicing box corresponding to the position of the tobacco conveyor belt.

[0008] The side of the feeding slicing box opposite to the feeding slicing machine frame is fixedly connected to a second transparent window.

[0009] As a further description of the above technical solution:

[0010] An upstream conveyor frame is fixedly installed on the side end face of the feeding slicing machine frame. The inner side of one end of the tobacco conveyor belt is rotatably connected to the inner wall of the upstream conveyor frame through an upstream transmission roller, a rotating shaft, and a bearing.

[0011] As a further description of the above technical solution:

[0012] A downstream conveyor frame is fixedly installed on the side end face of the feeding slicing machine frame, and the inner side of the other end of the tobacco conveyor belt is rotatably connected to the inner wall of the downstream conveyor frame through a downstream transmission roller in conjunction with a rotating shaft and bearing.

[0013] As a further description of the above technical solution:

[0014] The tobacco leaf slicing assembly includes a blade lifting frame, a slitting blade is embedded on the inner side of the feeding slicing frame corresponding to the position of the blade lifting frame, and a threaded connecting shaft is provided on the front end face of the feeding slicing box.

[0015] As a further description of the above technical solution:

[0016] The threaded connecting shaft is fixedly connected to the slitting blade via a threaded connecting sleeve and a lifting blade holder. The bottom end of the threaded connecting shaft is fixedly connected to the output shaft of the industrial motor via a gearbox. The surface of the industrial motor body is fixedly connected to the front end face of the feeding slicing box.

[0017] As a further description of the above technical solution:

[0018] A dust collection hood is fixedly connected to the side end of the feeding slice box corresponding to the position of the second transparent window. A dust collection pipe is connected to the top of the dust collection hood, and a vacuum cleaner is connected to the other end of the dust collection pipe.

[0019] As a further description of the above technical solution:

[0020] The downstream guardrail has a sensor port on its end face, and a cigarette pack height and length measurement component is embedded inside the sensor port.

[0021] As a further description of the above technical solution:

[0022] The cigarette pack height and length data measurement component includes an adapter frame. The bottom of the adapter frame is fixedly connected to the bottom of the inner side of the sensing port. An adapter threaded shaft is embedded in the inner side of the adapter frame. A swing shaft is fixedly sleeved on the outer surface of the threaded shaft. A cigarette pack height and length data sensor is fixedly installed at the other end of the swing shaft. A locking nut is threadedly connected to the outer surface of the adapter threaded shaft.

[0023] As a further description of the above technical solution:

[0024] The inner side of the feeding slicing box is equipped with a tobacco pack width and length measuring device.

[0025] As a further description of the above technical solution:

[0026] A contact baffle is provided on the inner side of the feeding slicing box corresponding to the position of the slitting blade;

[0027] Two symmetrically arranged push plates are embedded on the inner side of the feeding slicing box, corresponding to the position of the slitting blade.

[0028] As a further description of the above technical solution:

[0029] A cleaning component is provided on the inner side of the feeding slicer frame corresponding to the position of the slitting blade. The cleaning component includes a fixing frame, which is fixedly connected to the inner side wall of the feeding slicer frame. A lever sleeve is hinged to the side of the fixing frame near the slitting blade. A first lever arm is sleeved inside one end of the lever sleeve. A passive trigger block is fixedly connected to the other end of the first lever arm. An active trigger block is fixedly connected to the side end of the slitting blade corresponding to the position of the passive trigger block.

[0030] A second lever arm is fitted inside the port at the other end of the lever sleeve. A first rear support plate is hinged to the other end of the second lever arm. A first cleaning brush is fixedly connected to the side of the first rear support plate near the slitting blade. A telescopic outer cylinder is fixedly connected to the top of the first rear support plate. A telescopic inner shaft is fitted inside the telescopic outer cylinder. The other end of the telescopic inner shaft is fixedly connected to the bottom of the fixed frame.

[0031] The end face of the first rear support plate is fixedly connected to the second rear support plate via a bridge-type connecting frame, and the side end face of the second rear support plate is fixedly connected to the second cleaning brush at the position corresponding to the other side of the slitting blade.

[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0033] 1. In this invention, when the tobacco pack is cut at the tail end after re-drying, the overall mass of the tobacco pack is greatly reduced, and the contact area between the bottom of the tobacco pack and the tobacco conveyor belt is reduced, resulting in decreased stability. At this time, the two push plates will apply a pushing force to the tobacco pack, thereby triggering the contact baffle between the tobacco pack and the contact baffle, effectively ensuring that the cutting quality can still be guaranteed at the tail end of the tobacco pack cutting blade after re-drying.

[0034] 2. In this invention, during the process of slitting and re-drying the tobacco bales, the operation of the vacuum cleaner is controlled. The vacuum cleaner will remove the tobacco leaf debris generated during slitting through the suction pipe and suction hood. This not only prevents the tobacco leaf debris from contaminating the tobacco leaf conveyor belt, but also ensures the surface quality of the slitting tobacco bales. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the re-drying leaf tobacco flexible slicing tobacco processing equipment proposed in this invention.

[0036] Figure 2This is a schematic diagram of the tobacco leaf slicing component in the flexible slicing tobacco leaf processing equipment for the re-drying process of Yunnan tobacco special production line proposed in this invention.

[0037] Figure 3 This is a schematic diagram of the tobacco pack width and length measuring device in the flexible slicing tobacco cutting process equipment for the re-drying leaf tobacco processing step proposed in this invention.

[0038] Figure 4 The present invention provides a process and equipment for re-drying tobacco leaves and producing flexible slicing tobacco in a dedicated tobacco processing line. Figure 1 Enlarged structural diagram at point A in the middle.

[0039] Figure 5 This is a schematic diagram of the cleaning component proposed in this invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Feeding and slicing frame; 2. Tobacco leaf conveyor belt; 3. Upstream conveyor frame; 4. Upstream guardrail; 5. First transparent window; 6. Tobacco leaf slicing assembly; 601. Blade lifting frame; 602. Industrial motor; 603. Threaded connecting shaft; 7. Feeding and slicing box; 8. Second transparent window; 9. Dust suction hood; 10. Downstream conveyor frame; 11. Dust suction pipe; 12. Tobacco bale width and length measuring device; 13. Sensor port; 14. Tobacco bale height and length measuring assembly; 141. Adapter frame; 142. Swing shaft ; 143. Adapter threaded shaft; 144. Locking nut; 145. Cigarette pack height measurement data sensor; 15. Downstream guardrail; 16. Cleaning assembly; 161. Fixing frame; 162. Lever sleeve; 163. First lever arm; 164. Passive trigger block; 165. Second lever arm; 166. First rear support plate; 167. First cleaning brush; 168. Telescopic inner shaft; 169. Telescopic outer cylinder; 1610. Bridge-type connecting frame; 1611. Second rear support plate; 1612. Second cleaning brush. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-5This invention provides a technical solution: a flexible slicing and shredding process equipment for re-dried tobacco leaves in the tobacco processing line of Yunnan tobacco, including a feeding and slicing frame 1, a tobacco leaf conveyor belt 2 embedded in the inner side of the feeding and slicing frame 1, an upstream observation port corresponding to the position of the tobacco leaf conveyor belt 2 on the front end face of the feeding and slicing frame 1, and a first transparent window 5 embedded in the inner side of the upstream observation port; an upstream guardrail 4 and a downstream guardrail 15 are respectively fixedly connected to the two end faces of the feeding and slicing frame 1;

[0044] A feeding slicing box 7 is provided on the side end of the feeding slicing machine frame 1 at the position corresponding to the tobacco conveyor belt 2, and a tobacco slicing assembly 6 is provided on the feeding slicing box 7 at the position corresponding to the position of the tobacco conveyor belt 2.

[0045] The side of the feeding slice box 7 facing away from the feeding slicer frame 1 is fixedly connected to a second transparent window 8.

[0046] Specifically, an upstream transmission frame 3 is fixedly installed on the side end face of the feeding slicing frame 1. The inner side of one end of the tobacco conveyor belt 2 is rotatably connected to the inner wall of the upstream transmission frame 3 through an upstream transmission roller in conjunction with a rotating shaft and bearing. A downstream transmission frame 10 is fixedly installed on the side end face of the feeding slicing frame 1. The inner side of the other end of the tobacco conveyor belt 2 is rotatably connected to the inner wall of the downstream transmission frame 10 through a downstream transmission roller in conjunction with a rotating shaft and bearing. The tobacco slicing assembly 6 includes a blade lifting frame 601. A slitting blade is embedded in the inner side of the feeding slicing frame 1 at the position corresponding to the blade lifting frame 601. A threaded connecting shaft 603 is provided on the front end face of the feeding slicing box 7. The threaded connecting shaft 603 is fixedly connected to the slitting blade through a threaded connecting sleeve in conjunction with a lifting blade holder. The bottom end of the threaded connecting shaft 603 is fixedly connected to the output shaft of the industrial motor 602 through a gearbox. The surface of the industrial motor 602 body is fixedly connected to the front end face of the feeding slicing box 7.

[0047] The specific implementation method is as follows: After the cigarette pack is fed into the inner side of the feeding slicing machine frame 1 by the conveyor belt, it will collide with the contact baffle and generate an induction trigger effect. At this time, the system will control the industrial motor 602 to run. The operation of the industrial motor 602 will apply torque to the threaded connecting shaft 603 through the gearbox. The threaded connecting shaft 603 rotates under the action of torque. Under the combined effect of torque and thread engagement force, the lifting blade will move downward on the outer surface of the threaded connecting shaft 603 through the threaded connecting cylinder. When the slitting blade comes into contact with the re-dried cigarette pack, the slitting work of the slitting blade on the re-dried cigarette pack can be realized.

[0048] Specifically, a dust collection hood 9 is fixedly connected to the side end of the feeding slice box 7 at the position corresponding to the second transparent window 8. A dust collection pipe 11 is connected to the top of the dust collection hood 9, and a vacuum cleaner is connected to the other end of the dust collection pipe 11.

[0049] The specific implementation method is as follows: during the process of cutting and re-drying the tobacco packs, the vacuum cleaner is controlled to operate, and the vacuum cleaner will export the tobacco leaf debris generated during cutting through the vacuum pipe 11 and the vacuum hood 9.

[0050] Specifically, a sensor port 13 is provided on the end face of the downstream guardrail 15. A cigarette pack height and length measurement component 14 is embedded inside the sensor port 13. The cigarette pack height and length measurement component 14 includes an adapter frame 141. The bottom of the adapter frame 141 is fixedly connected to the bottom inside the sensor port 13. An adapter threaded shaft 143 is embedded inside the adapter frame 141. A swing shaft 142 is fixedly sleeved on the outer surface of the threaded connection shaft 603. A cigarette pack height and length measurement sensor 145 is fixedly installed at the other end of the swing shaft 142. A locking nut 144 is threadedly connected to the outer surface of the adapter threaded shaft 143. A cigarette pack width and length measurement device 12 is embedded inside the feed slice box 7.

[0051] The specific implementation method is as follows: after the tobacco pack is re-dried and then cut, the tobacco pack width and length measuring device 12 can measure the width of the tobacco pack slices, and the tobacco pack height and length measuring sensor 145 can detect the length of the cut tobacco pack.

[0052] Specifically, a contact baffle is provided on the inner side of the feeding slicing box 7 at the position corresponding to the slitting blade;

[0053] Two symmetrically arranged push plates are embedded on the inner side of the feeding slicing box 7, corresponding to the position of the slitting blade.

[0054] The specific implementation method is as follows: After the cigarette pack is fed into the inner side of the feeding slicing machine frame 1 by the conveyor belt, it will collide with the contact baffle and generate an induction trigger effect. At this time, the system will control the industrial motor 602 to run. The operation of the industrial motor 602 will apply torque to the threaded connecting shaft 603 through the gearbox. The threaded connecting shaft 603 rotates under the action of torque. Under the combined effect of torque and thread engagement force, the lifting blade will move downward on the outer surface of the threaded connecting shaft 603 through the threaded connecting cylinder. When the slitting blade comes into contact with the re-dried cigarette pack, the slitting work of the slitting blade on the re-dried cigarette pack can be realized.

[0055] Specifically, a cleaning component 16 is provided on the inner side of the feeding slicer frame 1 corresponding to the position of the slitting blade. The cleaning component 16 includes a fixing frame 161, which is fixedly connected to the inner wall of the feeding slicer frame 1. A lever sleeve 162 is hinged to the side of the fixing frame 161 near the slitting blade. A first lever arm 163 is sleeved inside one end of the lever sleeve 162. A passive trigger block 164 is fixedly connected to the other end of the first lever arm 163. An active trigger block is fixedly connected to the side end of the slitting blade corresponding to the position of the passive trigger block 164.

[0056] A second lever arm 165 is sleeved inside the port of the other end of the lever sleeve 162. The other end of the second lever arm 165 is hinged to a first rear support plate 166. A first cleaning brush 167 is fixedly connected to the side of the first rear support plate 166 near the slitting blade. A telescopic outer cylinder 169 is fixedly connected to the top of the first rear support plate 166. A telescopic inner shaft 168 is sleeved inside the telescopic outer cylinder 169. The other end of the telescopic inner shaft 168 is fixedly connected to the bottom of the fixing frame 161.

[0057] The end face of the first rear support plate 166 is fixedly connected to the second rear support plate 1611 via the bridge-type connecting bracket 1610, and the side end face of the second rear support plate 1611 is fixedly connected to the second cleaning brush 1612 at the position corresponding to the other side of the slitting blade.

[0058] Working principle introduction:

[0059] When in use, the tobacco leaf conveyor belt 2 is used for the transport of tobacco bales after re-drying. The sorted tobacco bales are placed on the transport surface of the tobacco leaf conveyor belt 2 at the position corresponding to the upstream transport frame 3.

[0060] After the cigarette pack is fed into the inner side of the feeding slicing machine frame 1 by the conveyor belt, it will collide with the contact baffle and generate an induction trigger effect. At this time, the system will control the industrial motor 602 to run. The operation of the industrial motor 602 will apply torque to the threaded connecting shaft 603 through the gearbox. The threaded connecting shaft 603 rotates under the action of torque. Under the combined effect of torque and thread engagement force, the lifting blade will move downward on the outer surface of the threaded connecting shaft 603 through the threaded connecting cylinder. When the slitting blade comes into contact with the re-dried cigarette pack, the slitting work of the slitting blade on the re-dried cigarette pack can be realized.

[0061] When the tobacco pack is cut at the tail end after re-drying, the overall mass of the tobacco pack is greatly reduced, and the contact area between the bottom of the tobacco pack and the tobacco conveyor belt 2 is reduced, resulting in decreased stability. At this time, the two push plates will apply a pushing force to the tobacco pack, which can trigger the contact baffle between the tobacco pack and the contact baffle, effectively ensuring that the cutting quality can still be guaranteed at the tail end of the tobacco pack cutting blade after re-drying.

[0062] After the tobacco pack is re-dried and then cut, the tobacco pack width and length measuring device 12 can measure the width of the tobacco pack slices, and the tobacco pack height and length measuring sensor 145 will detect the length of the cut tobacco pack.

[0063] During the process of slitting and re-drying tobacco bales, the operation of the vacuum cleaner is controlled. The vacuum cleaner will use the vacuum pipe 11 and the vacuum hood 9 to remove the tobacco leaf debris generated during slitting. This not only prevents the tobacco leaf debris from contaminating the tobacco leaf conveyor belt 2, but also ensures the surface quality of the slitting tobacco bale pieces.

[0064] The first transparent window 5 and the second transparent window 8 are designed to facilitate staff observation of the slitting process of the tobacco packs after re-drying.

[0065] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A process equipment for re-drying tobacco leaves into flexible slicing tobacco chips for a dedicated tobacco processing line, comprising a feeding and slicing frame (1), characterized in that, The inner side of the feeding slicing frame (1) is provided with a tobacco leaf conveyor belt (2), and the front end of the feeding slicing frame (1) is provided with an upstream observation port corresponding to the position of the tobacco leaf conveyor belt (2). The inner side of the upstream observation port is provided with a first transparent window (5). The feeding slicing frame (1) has a feeding slicing box (7) on its side end corresponding to the position of the tobacco conveyor belt (2), and a tobacco slicing assembly (6) is provided on the feeding slicing box (7) corresponding to the position of the tobacco conveyor belt (2). The side of the feeding slice box (7) facing away from the feeding slicer frame (1) is fixedly connected to a second transparent window (8); The feed slicer frame (1) is fixedly connected to the upstream guardrail (4) and the downstream guardrail (15) on both sides. The tobacco leaf slicing assembly (6) includes a blade lifting frame (601), and a slitting blade is embedded on the inner side of the feeding slicing frame (1) at a position corresponding to the blade lifting frame (601); The inner side of the feeding slicing box (7) is provided with a contact baffle corresponding to the position of the slitting blade; The inner side of the feeding slicing box (7) is fitted with two symmetrically arranged push plates corresponding to the position of the slitting knife. When the tobacco pack is cut to the end after re-drying, the two symmetrically arranged push plates apply a pushing force to the re-dryed tobacco pack. A cleaning component (16) is provided on the inner side of the feeding slicer frame (1) corresponding to the position of the slitting blade. The cleaning component (16) includes a fixing frame (161). The fixing frame (161) is fixedly connected to the inner wall of the feeding slicer frame (1). A lever sleeve (162) is hinged to the side of the fixing frame (161) near the slitting blade. A first lever arm (163) is sleeved inside the port of one end of the lever sleeve (162). A passive trigger block (164) is fixedly connected to the other end of the first lever arm (163). An active trigger block is fixedly connected to the side end of the slitting blade corresponding to the position of the passive trigger block (164). A second lever arm (165) is sleeved inside the port of the other end of the lever sleeve (162). The other end of the second lever arm (165) is hinged to a first rear support plate (166). A first cleaning brush (167) is fixedly connected to the side of the first rear support plate (166) near the slitting blade. A telescopic outer cylinder (169) is fixedly connected to the top of the first rear support plate (166). A telescopic inner shaft (168) is sleeved inside the telescopic outer cylinder (169). The other end of the telescopic inner shaft (168) is fixedly connected to the bottom of the fixing frame (161). The end face of the first rear support plate (166) is fixedly connected to the second rear support plate (1611) via a bridge-type connecting frame (1610), and the side end face of the second rear support plate (1611) is fixedly connected to the second cleaning brush (1612) at the position corresponding to the other side of the slitting blade.

2. The equipment for the re-drying of tobacco leaves into flexible slicing tobacco as described in claim 1, characterized in that, An upstream transmission frame (3) is fixedly installed on the side end face of the feeding slicer frame (1). The inner side of one end of the tobacco leaf conveyor belt (2) is rotatably connected to the inner wall of the upstream transmission frame (3) through the upstream transmission roller, the rotating shaft and the bearing.

3. The equipment for the re-drying of tobacco leaves into flexible slicing tobacco sheets in the dedicated tobacco processing line according to claim 1, characterized in that, The feed slicer frame (1) is fixedly installed with a downstream transmission frame (10) on its side end face. The inner side of the other end of the tobacco leaf conveyor belt (2) is rotatably connected to the inner wall of the downstream transmission frame (10) through a downstream transmission roller in conjunction with a rotating shaft and bearing.

4. The equipment for re-drying tobacco leaves and producing flexible slicing tobacco as described in claim 1, characterized in that, The front end face of the feeding slice box (7) is provided with a threaded connecting shaft (603).

5. The equipment for re-drying tobacco leaves and producing flexible slicing tobacco as described in claim 4, characterized in that, The threaded connecting shaft (603) is fixedly connected to the slitting blade through the threaded connecting sleeve and the lifting blade holder. The bottom end of the threaded connecting shaft (603) is fixedly connected to the output shaft of the industrial motor (602) through the gearbox. The surface of the industrial motor (602) body is fixedly connected to the front end face of the feeding slicing box (7).

6. The equipment for re-drying tobacco leaves and producing flexible slicing tobacco as described in claim 1, characterized in that, A dust collection hood (9) is fixedly connected to the side end of the feeding slice box (7) at the position corresponding to the second transparent window (8). A dust collection pipe (11) is connected to the top of the dust collection hood (9), and a vacuum cleaner is connected to the other end of the dust collection pipe (11).

7. The equipment for re-drying tobacco leaves and producing flexible slicing tobacco as described in claim 4, characterized in that, The downstream guardrail (15) has a sensor port (13) on its end face, and a cigarette pack height measurement data measuring component (14) is embedded inside the sensor port (13).

8. The equipment for re-drying tobacco leaves and producing flexible slicing tobacco as described in claim 7, characterized in that, The cigarette pack height and length data measurement component (14) includes an adapter frame (141). The bottom of the adapter frame (141) is fixedly connected to the bottom of the inner side of the sensing port (13). An adapter threaded shaft (143) is embedded in the inner side of the adapter frame (141). A swing shaft (142) is fixedly sleeved on the outer surface of the threaded connecting shaft (603). A cigarette pack height and length data sensor (145) is fixedly installed at the other end of the swing shaft (142). A locking nut (144) is threadedly connected to the outer surface of the adapter threaded shaft (143).

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