Pneumatic valve controller

Abstract

The utility model discloses a pneumatic valve controller, and relates to the technical field of valve control. Comprising a control box, a PLC is fixedly installed on the front face of the control box, two sliding grooves are symmetrically formed in one end of the upper surface of the control box, limiting plates are slidably installed on the inner walls of the two sliding grooves, inserting bolts are fixedly installed on the opposite sides of the two limiting plates, and the inserting bolts penetrate through the inner walls of the sliding grooves and are slidably installed with the sliding grooves. The two-way screw is driven to rotate through the knob, the two-way screw drives the limiting plates at the two ends to move towards the two ends respectively, the limiting plates drive the inserting bolts to move out of the inserting grooves, when the inserting bolts completely move out of the inserting grooves, the inserting bolts release fixing of the filtering boxes, and at the moment, the filtering boxes can be pulled out of the clamping grooves and maintained or replaced; the two-way screw is driven by the two-way screw to release the fixation of the filter box, so that the filter box can be conveniently and directly disassembled for repair or replacement, and the repair and maintenance process is simpler, more convenient and more efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of valve control, in particular to a pneumatic valve controller. Background Art

[0002] Pneumatic valves are devices that use pneumatic actuators to control the opening and closing of valves. They are widely used in industrial automation control systems to adjust the flow, pressure, temperature and other parameters of fluid media (such as liquids, gases, steam, etc.). Pneumatic valve controllers are devices used to control pneumatic valves. Their function is to control the airflow to make the opening, closing, adjusting and stopping of pneumatic valves more accurate, stable and reliable. An existing pneumatic valve controller (publication number: CN219933122U) has at least the following defects in use:

[0003] The filter assembly of the device is directly fixed together with the pneumatic valve and the control assembly. When parts of the filter assembly are damaged, it is necessary to perform a relatively cumbersome disassembly operation. It is not convenient to directly disassemble the filter assembly for repair or replacement, and even the entire device needs to be disassembled. The operation is relatively cumbersome and increases the downtime of the device. Utility Model Content

[0004] The main purpose of the utility model is to provide a pneumatic valve controller, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A pneumatic valve controller comprises a control box, a PLC controller is fixedly installed on the front of the control box, two slide grooves are symmetrically arranged at one end of the upper surface of the control box, limit plates are slidably installed on the inner walls of the two slide grooves, and plugs are fixedly installed on the opposite sides of the two limit plates, the plugs penetrate the inner walls of the slide grooves and are slidably installed therewith, a bidirectional screw is threadedly installed between the two limit plates, the bidirectional screw is arranged at one end of the limit plate close to the center of the control box, the two ends of the bidirectional screw respectively penetrate the outer surfaces of the two limit plates and are rotatably installed with the inner wall of the slide groove, the end of the bidirectional screw close to the PLC controller penetrates the inner wall of the slide groove and is fixedly installed with a knob, a card slot is arranged on the upper surface of the control box, the card slot is arranged between the two slide grooves, a filter box is slidably installed on the inner wall of the card slot, slots are arranged on both sides of the filter box, the plugs are inserted in the slots, a valve assembly is arranged at the bottom of the control box, a control assembly for controlling the opening and closing of the valve is arranged inside the control box, and a filter assembly for filtering gas is arranged in the filter box.

[0007] Preferably, the filter assembly includes a filter core plate, a filter groove is provided on the upper surface of the filter box, the outer surface of the filter core plate and the inner wall of the filter groove are slidably installed, limiting grooves are provided on the inner walls on opposite sides of the filter groove, limiting strips are fixedly installed on both sides of the filter core plate, and the outer surface of the limiting strip and the inner wall of the limiting groove are slidably installed.

[0008] Preferably, the control assembly includes a pneumatic pump, the lower surface of the pneumatic pump is fixedly mounted to the bottom wall of the control box, the front of the pneumatic pump is fixedly mounted to the back of the PLC controller, an air intake pipe is fixedly mounted on the upper surface of the pneumatic pump, the air intake pipe passes through the top wall of the control box and is fixedly mounted to the bottom of the filter box, a first conversion valve is fixedly mounted on the lower surface of the pneumatic pump, the first conversion valve passes through the bottom wall of the control box and is fixedly mounted thereto, an air supply pipe is fixedly mounted on the bottom joint and the side joint of the first conversion valve, and a threaded joint is rotatably mounted on the bottom outer surface of the air supply pipe.

[0009] Preferably, a solenoid valve is fixedly installed on one side of the bottom wall of the control box, the front side of the solenoid valve and the back side of the PLC controller are fixedly installed, an air outlet pipe is fixedly installed on the upper surface of the solenoid valve, the air outlet pipe passes through the top wall of the control box and is fixedly installed thereon, a second conversion connecting valve is fixedly installed on the lower surface of the solenoid valve, the second conversion connecting valve passes through the bottom wall of the control box and is fixedly installed thereon, the bottom joint and the side joint of the second conversion connecting valve are fixedly installed with an exhaust pipe, and a threaded joint is rotatably installed on the bottom outer surface of the exhaust pipe.

[0010] Preferably, the valve assembly includes a sealing box, a plurality of sealing joints are fixedly mounted on the upper surface of the sealing box, the sealing joints are threadedly mounted on the threaded joints, a rotating rod is rotatably mounted at the center of the bottom wall of the sealing box, a gear is fixedly mounted on the top outer surface of the rotating rod, the bottom of the rotating rod passes through the bottom wall of the sealing box and a ball valve is fixedly mounted thereon, a connecting pipe is fixedly mounted on the lower surface of the sealing box, the rotating rod is arranged in the connecting pipe and rotatably mounted thereon.

[0011] Preferably, a valve body is fixedly installed at the bottom of the connecting pipe, the ball valve is arranged in the valve body and rotatably installed therewith, flange joints are fixedly installed on the outer surfaces of both ends of the valve body, two movable plates are symmetrically and slidably installed on the inner wall of the sealing box, racks are fixedly installed on the opposite sides of the two movable plates, and the two racks are symmetrically arranged on both sides of the gear and meshed with it.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model drives the two-way screw to rotate by a knob, and the two-way screw drives the limit plates at both ends to move respectively to the two ends, and the limit plates drive the plug to move out of the slot. When the plug is completely moved out of the slot, the plug releases the fixation of the filter box. At this time, the filter box can be drawn out of the slot and repaired or replaced. The two-way screw drives the two-way screw to release the fixation of the filter box, which is convenient for directly disassembling the filter box for repair or replacement, making the repair and maintenance process simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 This is the top structural diagram of the control box of the utility model;

[0016] Figure 3 This is a structural diagram of the filter assembly of the utility model;

[0017] Figure 4 This is a structural diagram of the control component of the utility model;

[0018] Figure 5 This is a structural diagram of the valve assembly of the utility model;

[0019] Figure 6 This is a structural diagram of the gear and rack of the utility model.

[0020] In the figure: 1. control box; 2. PLC controller; 3. slide; 4. limit plate; 5. plug; 6. two-way screw; 7. knob; 8. slot; 9. filter box; 10. slot; 11. filter slot; 12. filter core plate; 13. limit slot; 14. limit strip; 15. pneumatic pump; 16. air inlet pipe; 17. first conversion valve; 18. air supply pipe; 19. threaded joint; 20. solenoid valve; 21. air outlet pipe; 22. exhaust pipe; 23. sealing box; 24. sealing joint; 25. connecting pipe; 26. rotating rod; 27. gear; 28. ball valve; 29. ​​valve body; 30. flange joint; 31. movable plate; 32. rack; 33. second conversion valve. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the process of using the pneumatic valve, a valve control device is required. The pneumatic valve controller provided by the utility model is specially used for the control operation of the pneumatic valve. Compared with the pneumatic valve controller with the publication number CN219933122U, the device fixes the filter box 9 through the limit plate 4. When in use, the limit plate 4 can be driven by the bidirectional screw 6 to release the fixation of the filter box 9, so that the filter box 9 is directly disassembled for repair or replacement, making the repair and maintenance process simpler and more efficient.

[0025] Example

[0026] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0027] A pneumatic valve controller comprises a control box 1, a PLC controller 2 is fixedly installed on the front of the control box 1, two slide grooves 3 are symmetrically provided at one end of the upper surface of the control box 1, and the inner walls of the two slide grooves 3 are slidably installed with limit plates 4, and the opposite sides of the two limit plates 4 are fixedly installed with plugs 5, which penetrate the inner wall of the slide groove 3 and are slidably installed therewith, and a bidirectional screw 6 is threadedly installed between the two limit plates 4, and the bidirectional screw 6 is arranged at one end of the limit plate 4 close to the center of the control box 1, and the two ends of the bidirectional screw 6 are respectively The outer surface of the two limit plates 4 is penetrated and rotatably installed with the inner wall of the slide groove 3. The end of the bidirectional screw 6 close to the PLC controller 2 penetrates the inner wall of the slide groove 3 and is fixedly installed with a knob 7. The upper surface of the control box 1 is provided with a card slot 8, and the card slot 8 is arranged between the two slide grooves 3. A filter box 9 is slidably installed on the inner wall of the card slot 8. Slots 10 are provided on both sides of the filter box 9. The plug 5 is inserted into the slot 10. A valve assembly is arranged at the bottom of the control box 1. A control assembly for controlling the opening and closing of the valve is arranged inside the control box 1. The filter A filter assembly for filtering gas is arranged in the box 9, and the filter assembly includes a filter core plate 12. A filter slot 11 is provided on the upper surface of the filter box 9. The outer surface of the filter core plate 12 and the inner wall of the filter slot 11 are slidably installed. The inner walls of the filter slot 11 on both sides are provided with limiting grooves 13. Limiting strips 14 are fixedly installed on both sides of the filter core plate 12. The outer surface of the limiting strip 14 and the inner wall of the limiting groove 13 are slidably installed. The control assembly includes an air pump 15. The lower surface of the air pump 15 and the bottom wall of the control box 1 are fixedly installed. The air The front of the pneumatic pump 15 and the back of the PLC controller 2 are fixedly installed, an air inlet pipe 16 is fixedly installed on the upper surface of the pneumatic pump 15, the air inlet pipe 16 passes through the top wall of the control box 1 and is fixedly installed with the bottom of the filter box 9, a first conversion valve 17 is fixedly installed on the lower surface of the pneumatic pump 15, the first conversion valve 17 passes through the bottom wall of the control box 1 and is fixedly installed therewith, an air pipe 18 is fixedly installed on the bottom joint and the side joint of the first conversion valve 17, and a threaded joint 19 is rotatably installed on the bottom outer surface of the air pipe 18.

[0028] In this embodiment, when it is necessary to inhale the gas, the pneumatic pump 15 is first controlled to be turned on through the PLC controller 2. The pneumatic pump 15 draws gas through the filter box 9. The gas passes through the filter core plate 12 on the filter box 9 to remove impurities contained in the gas. Then, the valve at the bottom of the first conversion valve 17 is controlled to be opened correspondingly through the PLC controller 2. The gas is transported to the corresponding gas supply pipe 18 through the pneumatic pump 15. When it is necessary to replace the filter core plate 12, the filter core plate 12 can be directly pulled out of the limit groove 13 for cleaning and replacement. When the parts in the filter box 9 are damaged, the knob 7 is twisted, and the knob 7 drives the two-way screw 6 to rotate. The two-way screw 6 drives the limit plates 4 at both ends to move toward their two ends respectively. The limit plate 4 drives the plug 5 to move out of the slot 10. When the plug 5 is completely moved out of the slot 10, the plug 5 releases the fixation of the filter box 9. At this time, the filter box 9 can be pulled out of the slot 8 and repaired or replaced.

[0029] Among them reference Figure 4-Figure 6 It can be seen that in the present application, a solenoid valve 20 is fixedly installed on one side of the bottom wall of the control box 1, the front of the solenoid valve 20 and the back of the PLC controller 2 are fixedly installed, an air outlet pipe 21 is fixedly installed on the upper surface of the solenoid valve 20, the air outlet pipe 21 passes through the top wall of the control box 1 and is fixedly installed therewith, a second conversion connecting valve 33 is fixedly installed on the lower surface of the solenoid valve 20, the second conversion connecting valve 33 passes through the bottom wall of the control box 1 and is fixedly installed therewith, the bottom joint and the side joint of the second conversion connecting valve 33 are fixedly installed with an exhaust pipe 22, a threaded joint 19 is rotatably installed on the bottom outer surface of the exhaust pipe 22, and the valve assembly includes a sealing box 23, a plurality of sealing joints 24 are fixedly installed on the upper surface of the sealing box 23, and the sealing joint 24 is threaded with the threaded joint 19 Installation, a rotating rod 26 is rotatably installed at the center of the bottom wall of the sealing box 23, a gear 27 is fixedly installed on the top outer surface of the rotating rod 26, the bottom of the rotating rod 26 penetrates the bottom wall of the sealing box 23 and is fixedly installed with a ball valve 28, a connecting pipe 25 is fixedly installed on the lower surface of the sealing box 23, the rotating rod 26 is arranged in the connecting pipe 25 and is rotatably installed therewith, a valve body 29 is fixedly installed at the bottom of the connecting pipe 25, the ball valve 28 is arranged in the valve body 29 and is rotatably installed therewith, flange joints 30 are fixedly installed on the outer surfaces of both ends of the valve body 29, two movable plates 31 are symmetrically slidably installed on the inner wall of the sealing box 23, racks 32 are fixedly installed on the opposite sides of the two movable plates 31, and the two racks 32 are symmetrically arranged on both sides of the gear 27 and meshed with it.

[0030] In this embodiment, when the pneumatic valve needs to be used, the pneumatic pump 15 is first controlled to open through the PLC controller 2, and the pneumatic pump 15 extracts gas through the filter box 9. The gas passes through the filter core plate 12 on the filter box 9 to remove impurities contained in the gas. At the same time, the PLC controller 2 controls the valve at the bottom of the first conversion valve 17 to open accordingly, so that the gas enters the sealing box 23 through the gas pipe 18 at the bottom of the first conversion valve 17. At this time, the valve on one side of the first conversion valve 17 is in a closed state, and the valve at the bottom of the second conversion valve 33 is in an open state, and the valve on one side is in a closed state. As the gas increases, the two movable plates 31 move toward the inner walls on both sides of the sealing box 23 respectively, and the movable plate 31 drives the rack 32 to move, and the rack 32 drives the gear 27 to rotate, and the gear 27 drives the rotating rod 26 rotates, the rotating rod 26 drives the ball valve 28 to rotate, so that the valve body 29 is in a closed state. When the valve body 29 needs to be in an open state, the PLC controller 2 controls the valve at the bottom of the first conversion connecting valve 17 to close, and the valve on one side of the first conversion connecting valve 17 to open. The gas is transported to the inner wall of one side of the sealing box 23 and the movable plate 31 through the gas supply pipe 18. As the gas increases, the movable plate 31 moves toward the rotating rod 26, and the rack 32 drives the gear 27 to rotate in the opposite direction. The rotating rod 26 drives the ball valve 28 to rotate to open the valve body 29. Synchronously, the PLC controller 2 controls the solenoid valve 20 to open, and opens the valve on one side of the second conversion connecting valve 33 and closes the valve at the bottom, so that the gas in the sealing box 23 is discharged into the exhaust pipe 22, and then the gas is discharged from the outlet pipe 21 through the solenoid valve 20.

[0031] It should be noted that the utility model is a pneumatic valve controller. When in use, the pneumatic pump 15 is first controlled to open by the PLC controller 2, and the pneumatic pump 15 extracts gas through the filter box 9. At the same time, the PLC controller 2 controls the valve at the bottom of the first conversion connecting valve 17 to open accordingly, so that the gas enters the sealing box 23 through the gas pipe 18 at the bottom of the first conversion connecting valve 17. At this time, the valve on one side of the first conversion connecting valve 17 is in a closed state, and the valve at the bottom of the second conversion connecting valve 33 is in an open state, and the valve on one side is in a closed state. As the gas increases, the two movable plates 31 move toward the inner walls on both sides of the sealing box 23 respectively, and the movable plate 31 drives the rack 32 to move, the rack 32 drives the gear 27 to rotate, and the gear 27 drives the rotating rod 26 to rotate, and the rotating rod 2 6 drives the ball valve 28 to rotate, so that the valve body 29 is in a closed state. When the valve body 29 needs to be opened, the PLC controller 2 controls the valve at the bottom of the first conversion connecting valve 17 to close, and the valve on one side of the first conversion connecting valve 17 to open. The gas is transported to the inner wall of one side of the sealing box 23 and the movable plate 31 through the gas pipe 18. As the gas increases, the movable plate 31 moves toward the rotating rod 26, and the rack 32 drives the gear 27 to rotate in the opposite direction. The rotating rod 26 drives the ball valve 28 to rotate to open the valve body 29. Synchronously, the PLC controller 2 controls the solenoid valve 20 to open, and opens the valve on one side of the second conversion connecting valve 33 and closes the bottom valve, so that the gas in the sealing box 23 is discharged into the exhaust pipe 22, and then the gas is discharged from the outlet pipe 21 through the solenoid valve 20.

[0032] The control box 1 is threadedly connected to the sealing joint 24 at the top of the sealing box 23 through the threaded joint 19 at its bottom. When the control component or valve component needs to be replaced, it can be directly disassembled through the threaded joint 19, which is convenient and quick. When the filter core plate 12 needs to be replaced, the filter core plate 12 can be directly pulled out from the limiting groove 13 for cleaning and replacement. When the parts in the filter box 9 are damaged, twist the knob 7, the knob 7 drives the two-way screw 6 to rotate, and the two-way screw 6 drives the limiting plates 4 at both ends to move toward their two ends respectively, and the limiting plate 4 drives the plug 5 to move out of the slot 10. When the plug 5 is completely moved out of the slot 10, the plug 5 releases the fixation of the filter box 9. At this time, the filter box 9 can be pulled out of the slot 8 and repaired or replaced, making the repair and maintenance process of the filter box 9 simpler and more efficient.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pneumatic valve controller, comprising a control box (1), a PLC controller (2) being fixedly mounted on the front of the control box (1), characterized in that: Two slide grooves (3) are symmetrically provided at one end of the upper surface of the control box (1), and the inner walls of the two slide grooves (3) are slidably mounted with limit plates (4), and the opposite sides of the two limit plates (4) are fixedly mounted with plugs (5), and the plugs (5) penetrate the inner walls of the slide grooves (3) and are slidably mounted therewith, and a bidirectional screw (6) is threadedly mounted between the two limit plates (4), and the bidirectional screw (6) is arranged at one end of the limit plate (4) close to the center of the control box (1), and the two ends of the bidirectional screw (6) respectively penetrate the outer surfaces of the two limit plates (4) and are rotatably mounted with the inner walls of the slide grooves (3), and the bidirectional screw (6) is threadedly mounted between the two limit plates (4). The end of the rod (6) close to the PLC controller (2) passes through the inner wall of the slide groove (3) and is fixedly installed with a knob (7); the upper surface of the control box (1) is provided with a slot (8), the slot (8) is arranged between two slide grooves (3), a filter box (9) is slidably installed on the inner wall of the slot (8), both sides of the filter box (9) are provided with slots (10), the plug (5) is inserted into the slots (10), the bottom of the control box (1) is provided with a valve assembly, the interior of the control box (1) is provided with a control assembly for controlling the opening and closing of the valve, and the filter box (9) is provided with a filter assembly for filtering gas.

2. A pneumatic valve controller according to claim 1, characterized in that: The filter assembly comprises a filter core plate (12), a filter groove (11) is provided on the upper surface of the filter box (9), the outer surface of the filter core plate (12) and the inner wall of the filter groove (11) are slidably mounted, the inner walls of the filter groove (11) on opposite sides are provided with limiting grooves (13), limiting strips (14) are fixedly mounted on both sides of the filter core plate (12), and the outer surface of the limiting strip (14) and the inner wall of the limiting groove (13) are slidably mounted.

3. A pneumatic valve controller according to claim 1, characterized in that: The control assembly comprises a pneumatic pump (15), the lower surface of the pneumatic pump (15) is fixedly mounted on the bottom wall of the control box (1), the front of the pneumatic pump (15) is fixedly mounted on the back of the PLC controller (2), an air intake pipe (16) is fixedly mounted on the upper surface of the pneumatic pump (15), the air intake pipe (16) passes through the top wall of the control box (1) and is fixedly mounted on the bottom of the filter box (9), a first conversion connecting valve (17) is fixedly mounted on the lower surface of the pneumatic pump (15), the first conversion connecting valve (17) passes through the bottom wall of the control box (1) and is fixedly mounted thereto, an air supply pipe (18) is fixedly mounted on the bottom joint and the side joint of the first conversion connecting valve (17), and a threaded joint (19) is rotatably mounted on the bottom outer surface of the air supply pipe (18).

4. A pneumatic valve controller according to claim 3, characterized in that: A solenoid valve (20) is fixedly mounted on one side of the bottom wall of the control box (1), the front side of the solenoid valve (20) is fixedly mounted on the back side of the PLC controller (2), an air outlet pipe (21) is fixedly mounted on the upper surface of the solenoid valve (20), the air outlet pipe (21) passes through the top wall of the control box (1) and is fixedly mounted thereto, a second conversion connecting valve (33) is fixedly mounted on the lower surface of the solenoid valve (20), the second conversion connecting valve (33) passes through the bottom wall of the control box (1) and is fixedly mounted thereto, an exhaust pipe (22) is fixedly mounted on the bottom joint and the side joint of the second conversion connecting valve (33), and a threaded joint (19) is rotatably mounted on the bottom outer surface of the exhaust pipe (22).

5. A pneumatic valve controller according to claim 4, characterized in that: The valve assembly comprises a sealing box (23), a plurality of sealing joints (24) are fixedly mounted on the upper surface of the sealing box (23), the sealing joints (24) are threadedly mounted on the threaded joint (19), a rotating rod (26) is rotatably mounted at the center of the bottom wall of the sealing box (23), a gear (27) is fixedly mounted on the top outer surface of the rotating rod (26), the bottom of the rotating rod (26) passes through the bottom wall of the sealing box (23) and is fixedly mounted with a ball valve (28), a connecting pipe (25) is fixedly mounted on the lower surface of the sealing box (23), and the rotating rod (26) is arranged in the connecting pipe (25) and is rotatably mounted therewith.

6. A pneumatic valve controller according to claim 5, characterized in that: A valve body (29) is fixedly mounted at the bottom of the connecting pipe (25), the ball valve (28) is arranged in the valve body (29) and is rotatably mounted therewith, flange joints (30) are fixedly mounted on the outer surfaces of both ends of the valve body (29), two movable plates (31) are symmetrically slidably mounted on the inner wall of the sealing box (23), racks (32) are fixedly mounted on opposite sides of the two movable plates (31), and the two racks (32) are symmetrically arranged on both sides of the gear (27) and meshed therewith.

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