Meshing handle for turning gear

Abstract

The utility model relates to a meshing handle for a turning gear. The meshing handle comprises a disc, a rotating shaft, a handle body, a photoelectric switch protection mechanism and a photoelectric switch. A first through hole is formed in the center of the disc, the rotating shaft is installed in the first through hole in a penetrating mode, one end of the rotating shaft is connected with the handle, and the end of the handle protrudes out of the outer circle face of the rotating shaft; the disc is provided with two photoelectric switch protection mechanisms, each photoelectric switch protection mechanism is internally provided with a photoelectric switch, and the two photoelectric switches are electrically connected with a start button and a stop button of the turning gear respectively. According to the device, the accuracy of meshing and throwing signal detection is greatly improved, the hidden danger of poor contact is effectively avoided, and the equipment reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of barring gears, in particular to an engaging handle for a barring gear device. Background Art

[0002] A cranking mechanism typically utilizes a traditional worm gear reduction mechanism and an oscillating gear clutch mechanism. The motor is positioned horizontally, and features an electrically operated hydraulic engagement mechanism driven by lubricating oil pressure. This allows for remote or local operation, continuous or intermittent cranking, and automatic disengagement from the rotor during a backflip. Before cranking begins, the engagement solenoid valve is energized to initiate oil flow into the hydraulic mechanism, pushing the handle from the disengaged position to engage the mechanism. Once the engagement signal is in place, the solenoid valve is de-energized, allowing the hydraulic mechanism to drain oil. This closes the oil supply channel, creating a pressure-retaining state that keeps the handle in the engaged position, allowing the cranking mechanism to be operational.

[0003] Currently, the position detection switch for the engagement handle is a microswitch. The operating principle of a microswitch is that external mechanical force acts on the actuating reed through a transmission element, causing the fixed contact at its end to quickly connect or disconnect with the moving contact, thereby achieving its function. Poor contact, deformed springs, and insufficient operating force are the most common types of failure for micro switches. When the turning device is put into operation, because the microswitch's own actuating point is the contact point and the contact surface is small, there is a problem of contact deviation with the engagement handle, resulting in insensitivity and inability to effectively guarantee normal signal output, delaying the turning device's start-up time. In severe cases, it can cause damage to the equipment or even scrap. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an engaging handle for a turning device to solve the above technical problems.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an engaging handle for a winching device, comprising: a disc, a rotating shaft, a handle, a photoelectric switch protection mechanism and a photoelectric switch; a first through hole is opened in the center of the disc, the rotating shaft is passed through the first through hole, one end of the rotating shaft is connected to the handle, and the end of the handle protrudes from the outer circumferential surface of the rotating shaft; two photoelectric switch protection mechanisms are installed on the disc, each of the photoelectric switch protection mechanisms is provided with a photoelectric switch, and the two photoelectric switches are respectively electrically connected to the start button and stop button of the winching device.

[0006] The beneficial effects of this utility model are as follows: the device utilizes a photoelectric switch detection method, which does not directly contact the handle, completely eliminating the problem of delayed cranking time due to poor contact in the prior art. Furthermore, a photoelectric switch protection mechanism is provided to protect the photoelectric switch, preventing dust and other contamination that could reduce detection accuracy. Therefore, this device significantly improves switch detection accuracy, effectively avoids the potential for poor contact, and enhances equipment reliability.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, each photoelectric switch protection mechanism includes a first mounting frame, a protective tube, a mounting piece, a glass sheet and a base plate; one end of the first mounting frame is connected to the disc, and the other end of the first mounting frame is connected to the protective tube; a mounting piece is connected inside the protective tube, and the mounting piece is connected to the photoelectric switch; a glass sheet is installed at one end of the protective tube close to the rotating shaft, and a base plate is installed at the other end of the protective tube away from the rotating shaft.

[0009] The beneficial effect of adopting the above further solution is that the photoelectric switch is installed in the space formed by the protective tube, the glass sheet and the bottom plate, which can effectively prevent the photoelectric switch from being contaminated.

[0010] Furthermore, each of the photoelectric switch protection mechanisms further includes a light-shielding sleeve, which is detachably connected to one end of the protection tube close to the rotating shaft.

[0011] The beneficial effect of adopting the above further solution is that in a strong light environment, installing the light-shielding sleeve on the protective tube can effectively reduce the impact of the strong light on the photoelectric switch and ensure the detection accuracy of the photoelectric switch.

[0012] Furthermore, a dust cover is provided at the end of the light-shielding sleeve.

[0013] The beneficial effect of adopting the above further solution is that when not in use, the dust cover can be closed to prevent dust from falling into the light-shielding sleeve and causing the glass sheet to be contaminated.

[0014] Furthermore, a second through hole is formed on the bottom plate, a sealing ring is connected in the second through hole, and a connecting line of the photoelectric switch is installed in the sealing ring.

[0015] The beneficial effect of adopting the above further solution is: a sealing ring is provided to prevent dust from entering the protective tube.

[0016] Furthermore, an opening is provided on the side wall of the protective tube, and a cover plate is installed on the opening.

[0017] The beneficial effect of adopting the above further solution is that the photoelectric switch can be taken out by opening the cover.

[0018] Furthermore, the mounting member includes a mounting platform and a second mounting bracket, the mounting platform is connected to the protective tube, one end of the second mounting bracket is connected to the mounting platform, and the other end of the second mounting bracket is connected to the photoelectric switch.

[0019] The beneficial effect of adopting the above further solution is that the mounting table is used to provide a platform for mounting the second mounting rack, and the second mounting rack is used to fix the photoelectric switch.

[0020] Furthermore, the first mounting frame includes a connecting plate and a bracket, the connecting plate is connected to the disc, one end of the bracket is connected to the connecting plate, and the other end of the bracket is connected to the protective tube.

[0021] The beneficial effect of adopting the above further solution is that the protective tube can be effectively fixed on the disc under the action of the connecting plate and the bracket.

[0022] Furthermore, it also includes a cam plate, one end of which is connected to the end of the rotating shaft, and the other end of the cam plate is provided with a mounting groove, the handle is embedded in the mounting groove, and the handle is fixedly connected to the cam plate.

[0023] Furthermore, a bearing is installed between the rotating shaft and the disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of an engagement handle for a turning device according to the present invention;

[0025] Figure 2 This is a cross-sectional view of an engagement handle for a turning device according to the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of a photoelectric switch protection mechanism for an engagement handle of a turning device according to the present invention;

[0027] Figure 4 This is a side view of a photoelectric switch protection mechanism for an engagement handle of a turning device according to the present invention;

[0028] Figure 5 The utility model is a top view of a photoelectric switch protection mechanism for an engagement handle of a turning device.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Disc; 2. Rotating shaft; 3. Handle; 4. Photoelectric switch protection mechanism; 5. Photoelectric switch; 6. Protective tube; 7. Glass sheet; 8. Bottom plate; 9. Light-shielding sleeve; 10. Dust cover; 11. Sealing ring; 12. Cover plate; 13. Mounting platform; 14. Second mounting bracket; 15. Connecting plate; 16. Bracket; 17. Cam plate; 18. Bearing. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] like Figure 1 As shown, this embodiment provides an engaging handle for a winching device, comprising: a disc 1, a rotating shaft 2, a handle 3, a photoelectric switch protection mechanism 4 and a photoelectric switch 5; a first through hole is opened in the center of the disc 1, the rotating shaft 2 is passed through the first through hole, one end of the rotating shaft 2 is connected to the handle 3, and the end of the handle 3 protrudes from the outer circumferential surface of the rotating shaft 2; two photoelectric switch protection mechanisms 4 are installed on the disc 1, each of the photoelectric switch protection mechanisms is provided with a photoelectric switch 5, and the two photoelectric switches 5 are respectively electrically connected to the start button and stop button of the winching device.

[0033] This device utilizes a photoelectric switch 5 for detection, which doesn't directly contact the handle 3. This eliminates the prior art issue of delayed cranking due to poor contact. Furthermore, a photoelectric switch protection mechanism 4 protects the switch 5, preventing dust and other contaminants that could reduce its detection accuracy. Consequently, this device significantly improves switch detection accuracy, effectively avoids potential poor contact, and enhances equipment reliability.

[0034] Optionally, in an embodiment, as Figure 2 As shown, it also includes a cam plate 17, one end of which is connected to the end of the rotating shaft 2, and the other end of the cam plate 17 is provided with a mounting groove, the handle 3 is embedded in the mounting groove, and the handle 3 is fixedly connected to the cam plate 17.

[0035] Optionally, in an embodiment, it is characterized in that a bearing 18 is installed between the rotating shaft 2 and the disc 1.

[0036] Disc 1 is fixedly connected to the turning mechanism. Both ends of shaft 2 extend from disc 1. One end of shaft 2 is fixedly connected to a gear in the turning mechanism, while the other end of shaft 2 is connected to one end of cam plate 17. The other end of the cam plate has a mounting slot. Handle 3 is fixedly connected to cam plate 17 by bolts or other means, with the end of handle 3 protruding from the outer surface of cam plate 17.

[0037] Optionally, in an embodiment, as Figure 3 As shown, each photoelectric switch protection mechanism 4 includes a first mounting frame, a protective tube 6, a mounting member, a glass sheet 7 and a base plate 8; one end of the first mounting frame is connected to the disc 1, and the other end of the first mounting frame is connected to the protective tube 6; a mounting member is connected inside the protective tube 6, and the mounting member is connected to the photoelectric switch 5; a glass sheet 7 is installed at one end of the protective tube 6 close to the rotating shaft 2, and a base plate 8 is installed at the other end of the protective tube 6 away from the rotating shaft 2.

[0038] The photoelectric switch 5 is installed in a space formed by the protective tube 6, the glass sheet 7 and the bottom plate 8, which can effectively prevent the photoelectric switch 5 from being contaminated.

[0039] Optionally, in an embodiment, each of the photoelectric switch protection mechanisms 4 further includes a light-shielding sleeve 9 , and the light-shielding sleeve 9 is detachably connected to one end of the protection tube 6 close to the rotating shaft 2 .

[0040] The light shielding sleeve 9 and the protective tube 6 can be connected by threaded connection, clamping, etc. In a strong light environment, installing the light shielding sleeve 9 on the protective tube 6 can effectively reduce the impact of the strong light on the photoelectric switch 5 and ensure the detection accuracy of the photoelectric switch 5.

[0041] Optionally, in an embodiment, a dust cover 10 is provided at the end of the light-shielding sleeve 9. When not in use, the dust cover 10 can be closed to prevent dust from falling into the light-shielding sleeve 9 and causing the glass sheet 7 to be contaminated.

[0042] Optionally, in an embodiment, as Figure 4 As shown, the bottom plate 8 is provided with a second through hole, in which a sealing ring 11 is connected, and the connecting wire of the photoelectric switch 5 is passed through the sealing ring 11. The sealing ring 11 is provided to prevent dust from entering the protective tube 6.

[0043] Optionally, in an embodiment, as Figure 5 As shown, an opening is provided on the side wall of the protective tube 6, and a cover plate 12 is installed on the opening. By opening the cover plate 12, the photoelectric switch 5 can be taken out.

[0044] Optionally, in an embodiment, the mounting member includes a mounting platform 13 and a second mounting bracket 14, the mounting platform 13 is connected to the protective tube 6, one end of the second mounting bracket 14 is connected to the mounting platform 13, and the other end of the second mounting bracket 14 is connected to the photoelectric switch 5.

[0045] The lower surface of the mounting platform 13 is an arc-shaped structure, and the curvature of the lower surface of the mounting platform 13 matches the curvature of the inner wall of the protective tube 6. The lower surface of the mounting platform 13 is connected to the inner wall of the protective tube 6. The upper surface of the mounting platform 13 is flat, and the mounting platform 13 is used to provide a platform for installing the second mounting bracket 14.

[0046] Second mounting bracket 14 is used to secure photoelectric switch 5. In this embodiment, second mounting bracket 14 comprises a first fixing plate and a second fixing plate. The first fixing plate is connected to mounting platform 13, and the second fixing plate is positioned perpendicular to the first fixing plate. Photoelectric switch 5 is mounted on the second fixing plate and secured to the second fixing plate using nuts or other means.

[0047] Optionally, in an embodiment, the first mounting frame includes a connecting plate 15 and a bracket 16 , the connecting plate 15 is connected to the disc 1 , one end of the bracket 16 is connected to the connecting plate 15 , and the other end of the bracket 16 is connected to the protective tube 6 .

[0048] The connecting plate 15 and bracket 16 effectively secure the protective tube 6 to the disc 1. The number of brackets 16 can be adjusted based on specific usage requirements. In this embodiment, two brackets 16 are provided. Bracket 16 consists of an arc-shaped support and a connecting rod. One end of the connecting rod is fixedly connected to the connecting plate 15, and the other end of the connecting rod is fixedly connected to the center of the arc-shaped support. The arc of the arc-shaped support matches the arc of the protective tube 6 and is used to support and secure the protective tube 6.

[0049] The device adopts a photoelectric switch 5 detection method. The photoelectric switch 5 does not directly contact the handle 3, which completely eliminates the problem of delayed turning time due to poor contact in the prior art and can ensure that the turning is put into operation in time.

[0050] The lens of the photoelectric switch 5 is susceptible to contamination by dust and oil. Once dirty, the lens not only scatters the light beam but also blocks some of the light, thereby affecting the detection effect. Therefore, in dusty environments or in environments with direct splashes of water, oil, or chemicals, the performance of the photoelectric switch 5 will be affected, and may even cause malfunction. Furthermore, in strong light environments, the photoelectric switch 5 will also be disturbed, which can easily lead to malfunction. Therefore, the present device is equipped with a photoelectric switch protection mechanism 4 to protect the photoelectric switch 5 and prevent the detection accuracy of the photoelectric switch 5 from being reduced due to contamination such as dust or interference from strong light.

[0051] In summary, this device greatly improves the accuracy of engagement and disengagement signal detection, effectively avoids the hidden dangers of poor contact, and improves equipment reliability.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An engaging handle for a turning device, characterized in that: include: A disc (1), a rotating shaft (2), a handle (3), a photoelectric switch protection mechanism (4) and a photoelectric switch (5); A first through hole is provided at the center of the disc (1), the rotating shaft (2) is passed through the first through hole, one end of the rotating shaft (2) is connected to the handle (3), and the end of the handle (3) protrudes from the outer circumferential surface of the rotating shaft (2); two photoelectric switch protection mechanisms (4) are installed on the disc (1), each of the photoelectric switch protection mechanisms (4) is provided with a photoelectric switch (5), and the two photoelectric switches (5) are respectively electrically connected to the start button and the stop button of the turning device.

2. The engaging handle for a barring device according to claim 1, characterized in that: Each of the photoelectric switch protection mechanisms (4) comprises a first mounting frame, a protective tube (6), a mounting member, a glass sheet (7) and a base plate (8); one end of the first mounting frame is connected to the disc (1), and the other end of the first mounting frame is connected to the protective tube (6); a mounting member is connected inside the protective tube (6), and the mounting member is connected to the photoelectric switch (5); a glass sheet (7) is installed at one end of the protective tube (6) close to the rotating shaft (2), and a base plate (8) is installed at the other end of the protective tube (6) away from the rotating shaft (2).

3. The engaging handle for a barring device according to claim 2, characterized in that: Each of the photoelectric switch protection mechanisms (4) further comprises a light-shielding sleeve (9), and the light-shielding sleeve (9) is detachably connected to one end of the protection tube (6) close to the rotating shaft (2).

4. The engaging handle for a barring device according to claim 3, characterized in that: A dust cover (10) is provided at the end of the light-shielding sleeve (9).

5. The engaging handle for a barring device according to claim 2, characterized in that: A second through hole is provided on the bottom plate (8), a sealing ring (11) is connected to the second through hole, and a connecting line of the photoelectric switch (5) is installed in the sealing ring (11).

6. The engaging handle for a barring device according to claim 2, characterized in that: An opening is provided on the side wall of the protective cylinder (6), and a cover plate (12) is installed on the opening.

7. The engaging handle for a barring device according to claim 2, characterized in that: The mounting member comprises a mounting platform (13) and a second mounting frame (14), wherein the mounting platform (13) is connected to the protective tube (6), one end of the second mounting frame (14) is connected to the mounting platform (13), and the other end of the second mounting frame (14) is connected to the photoelectric switch (5).

8. The engaging handle for a barring device according to claim 2, characterized in that: The first mounting frame comprises a connecting plate (15) and a bracket (16), wherein the connecting plate (15) is connected to the disc (1), one end of the bracket (16) is connected to the connecting plate (15), and the other end of the bracket (16) is connected to the protective tube (6).

9. The engaging handle for a barring device according to claim 1, characterized in that: It also includes a cam plate (17), one end of which is connected to the end of the rotating shaft (2), and the other end of which is provided with a mounting groove, the handle (3) being embedded in the mounting groove, and the handle (3) being fixedly connected to the cam plate (17).

10. The engagement handle for a barring device according to claim 1, characterized in that: A bearing (18) is installed between the rotating shaft (2) and the disc (1).

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