Bolt type jigsaw lock shaft device

Abstract

The utility model discloses a bolt type barring lock shaft device which comprises a barring gear shaft rotatably installed in a box body and an output gear in transmission connection with the barring gear shaft, and further comprises a barring mechanism installed on the box body, and a connecting gear of the barring mechanism and the barring gear shaft can rotate synchronously or rotate independently; the lock shaft assembly comprises a lock shaft pin sleeve and a pin shaft, the lock shaft pin sleeve is arranged in the box body in a penetrating mode, the pin shaft is movably installed in the lock shaft pin sleeve, and the pin shaft can move in the axial direction of the lock shaft pin sleeve so as to clamp the vehicle gear shaft and limit rotation of the vehicle gear shaft. When the barring gear shaft is unlocked, the barring mechanism and the barring gear shaft can be controlled to be connected so that the barring mechanism and the barring gear shaft can rotate synchronously, force rotating in the opposite direction is applied to the barring gear shaft through the barring mechanism, pressure borne by the pin shaft is removed, and therefore the barring gear shaft can be unlocked rapidly and conveniently.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a pin-type turning gear shaft locking device. Background Technology

[0002] Marine gearbox turning gears are used for low-speed turning of the propeller shaft during static maintenance of the gearbox, while shaft locking devices are used to lock the shaft system during towing or when the ship is stationary. Domestic marine gearboxes achieve shaft locking either by integrating the device onto the gearbox or by designing a separate device that locks the stern shaft. Currently, the turning gears and shaft locking devices integrated into the gearbox use splined shift forks for locking the shaft or directly lock the output shaft system via pins. Both methods have limitations in practical applications. For example, when using splined shift forks, after the propeller is submerged in water, the stern shaft tends to rotate due to the propeller angle and the influence of water flow. This creates a large positive pressure on the spline meshing teeth in the locked state, making disengagement very difficult.

[0003] Therefore, how to provide a turning gear locking device that facilitates disengagement of the output shaft system is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a turning gear shaft locking device that facilitates disengagement of the output shaft system.

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

[0006] A pin-type turning gear locking device includes a turning gear shaft rotatably mounted in a housing, and an output gear that is drively connected to the turning gear shaft. The pin-type turning gear locking device further includes:

[0007] A turning mechanism is mounted on the housing, and the connecting gear of the turning mechanism can rotate synchronously with the turning gear shaft or the two can rotate independently.

[0008] The locking shaft assembly includes a locking shaft sleeve and a pin. The locking shaft sleeve passes through the housing, and the pin is movably installed inside the locking shaft sleeve. The pin can move axially along the locking shaft sleeve to engage the turning gear shaft and restrict its rotation.

[0009] Preferably, the connecting gear and the turning gear shaft are coaxially arranged, and a movable sliding gear ring is fitted on the connecting gear. The ends of the connecting gear and the turning gear shaft that are close to each other are provided with teeth that cooperate with the sliding gear ring. The sliding gear ring can connect the connecting gear and the turning gear shaft so that the two rotate synchronously.

[0010] Preferably, the turning mechanism also includes a rotary handwheel for facilitating the rotation of the connecting gear.

[0011] Preferably, the locking shaft assembly also includes:

[0012] The threaded rod is installed along the axis of the locking pin sleeve and is connected to the top of the locking pin sleeve through the end cover. The threaded rod can rotate relative to the end cover and is threadedly connected to the pin.

[0013] A locating pin is radially inserted into the locking pin sleeve, and its end engages with the pin to restrict the rotation of the pin.

[0014] Preferably, a slot extending axially is provided on the outer circumference of the pin, and the locating pin is engaged in the slot to restrict the axial movement of the pin.

[0015] Preferably, a rotating handle is installed on the top of the threaded rod, which is used to facilitate the rotation of the threaded rod.

[0016] Preferably, a ring-shaped locking disc is provided on the circumference of the rotating gear shaft, and a positioning blind hole is provided radially on the locking disc, which can be aligned with the pin shaft.

[0017] Preferably, the locking disc has six positioning blind holes evenly distributed along its circumference.

[0018] Preferably, the circumference of the rotating gear shaft is also provided with a scale corresponding to the position of the positioning blind hole, and the housing is provided with an observation hole for observing the scale to determine whether the positioning blind hole and the pin are aligned.

[0019] Preferably, the side wall of the locking pin sleeve is provided with a proximity switch in its axial direction for detecting whether the pin is inserted in place.

[0020] Compared to the aforementioned background technology, the present invention provides a pin-type turning gear locking device, including a turning gear shaft rotatably mounted in a housing, and an output gear that is drively connected to the turning gear shaft. The pin-type turning gear locking device further includes: a turning mechanism mounted on the housing, wherein the connecting gear of the turning mechanism can rotate synchronously with the turning gear shaft or the two can rotate independently; and a locking assembly including a locking pin sleeve and a pin, wherein the locking pin sleeve passes through the housing, and the pin is movably mounted in the locking pin sleeve, and the pin can move axially along the locking pin sleeve to engage the turning gear shaft and restrict its rotation.

[0021] Specifically, in the initial state, both the turning gear shaft and the output gear rotate to output power to the outside. At this time, the turning mechanism is separated from the turning gear shaft, and the two can rotate independently without affecting each other. When the output gear stops rotating, the turning gear shaft needs to be locked. At this time, the pin shaft can be moved downward to engage the turning gear shaft and stop it from rotating. When the turning gear shaft is unlocked, the propeller connected to the output gear is affected by the water flow and generates a rotational force. This force is transmitted to the turning gear shaft, thus generating a large positive pressure on the pin shaft. The turning mechanism can be controlled to connect with the turning gear shaft so that the two can rotate synchronously. Through the turning mechanism, a force in the opposite direction is applied to the turning gear shaft to relieve the pressure on the pin shaft, thereby achieving quick and convenient unlocking of the turning gear shaft. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the pin-type turning gear locking device provided in an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 Another perspective structural diagram;

[0025] Figure 3 This is a schematic diagram of the locking shaft assembly structure provided in an embodiment of the present utility model.

[0026] in:

[0027] 01-Box body, 02-Gear shaft, 03-Output gear, 04-Gear mechanism, 05-Connecting gear, 06-Locking pin sleeve, 07-Pin, 08-Sliding gear ring, 09-Rotating handwheel, 10-Threaded rod, 11-End cover, 12-Positioning pin, 13-Strip groove, 14-Rotating handle, 15-Locking disc, 16-Positioning blind hole, 17-Scale dial, 18-Proximity switch. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0031] The purpose of this invention is to provide a turning gear shaft locking device that facilitates disengagement of the output shaft system.

[0032] To achieve the above objectives, the present invention provides the following technical solution:

[0033] Please see Figures 1 to 3 This embodiment provides a pin-type turning gear locking device, including a turning gear shaft 02 rotatably mounted in a housing 01, and an output gear 03 that is drively connected to the turning gear shaft 02. The pin-type turning gear locking device also includes: a turning mechanism 04, mounted on the housing 01, and a connecting gear 05 of the turning mechanism 04 that can rotate synchronously with the turning gear shaft 02 or rotate independently; and a locking assembly, including a locking pin sleeve 06 and a pin 07. The locking pin sleeve 06 passes through the housing 01, and the pin 07 is movably mounted in the locking pin sleeve 06. The pin 07 can move axially along the locking pin sleeve 06 to engage the turning gear shaft 02 and restrict its rotation.

[0034] Specifically, such as Figure 1As shown, in this embodiment, a turning gear shaft 02 passes through the inside of the housing 01, and the turning gear shaft 02 meshes with an output gear 03. The output gear 03 is connected to an external propeller. The left end of the turning mechanism 04 has a rotatable connecting gear 05. This connecting gear 05 is separate from the turning gear shaft 02 so that they do not interfere with each other. The connecting gear 05 can also be connected to the turning gear shaft 02, allowing them to rotate synchronously. A locking pin sleeve 06 and a pin 07 that moves within the locking pin sleeve 06 are provided on the housing 01. The axis of the locking pin sleeve 06... The pin 07 is positioned perpendicular to the axis of the vertical turning gear shaft 02 and can move towards the turning gear shaft 02 until it engages with the turning gear shaft 02, thus preventing the turning gear shaft 02 from rotating. To prevent the pin 07 from wobbling during movement and failing to engage the turning gear shaft 02, the outer diameter of the pin 07 is set to be approximately the same as the inner diameter of the locking pin sleeve 06, with only a small gap between them to prevent the pin 07 from getting stuck in the locking pin sleeve 06. To ensure smooth movement of the pin 07, a small amount of lubricating oil can be filled into the tiny gap between them.

[0035] In other words, in the initial state of this embodiment, both the turning gear shaft 02 and the output gear 03 rotate to output power to the outside. At this time, the turning mechanism 04 is separated from the turning gear shaft 02, and the two can rotate independently without affecting each other. When the output gear 03 stops rotating, the turning gear shaft 02 needs to be locked. At this time, the pin 07 can be moved downward to engage the turning gear shaft 02 and prevent it from rotating. When the turning gear shaft 02 is unlocked, the propeller connected to the output gear 03 is affected by the water flow and generates a rotational force. This force is transmitted to the turning gear shaft 02, thus generating a large positive pressure on the pin 07. The turning mechanism 04 can be controlled to connect with the turning gear shaft 02 so that the two can rotate synchronously. Through the turning mechanism 04, a force in the opposite direction of rotation is applied to the turning gear shaft 02, relieving the pressure on the pin 07, thereby achieving quick and convenient unlocking of the turning gear shaft 02.

[0036] In this embodiment, the connecting gear 05 is coaxially arranged with the turning gear shaft 02. A movable sliding gear ring 08 is sleeved on the connecting gear 05. The ends of the connecting gear 05 and the turning gear shaft 02 that are close to each other are provided with teeth that cooperate with the sliding gear ring 08. The sliding gear ring 08 can connect the connecting gear 05 and the turning gear shaft 02 so that the two rotate synchronously.

[0037] like Figure 1As shown, in this embodiment, the turning gear shaft 02 and the connecting gear 05 are coaxially arranged and located on the same straight line. The right end of the turning gear shaft 02 has the same diameter as the connecting gear 05, meaning their approaching ends have the same diameter. Furthermore, both ends are provided with teeth extending axially. Correspondingly, a movable sliding gear ring 08 is fitted onto the connecting gear 05. This sliding gear ring 08 has an annular structure, and its inner diameter matches the diameter of the connecting gear 05. In this way, the sliding gear ring 08 can move squarely along the axis. The right end of the turning gear shaft 02, or the connection point between the turning gear shaft 02 and the connecting gear 05, is moved so that the sliding gear ring 08 can be simultaneously fitted onto the right end of the turning gear shaft 02 and the left end of the connecting gear 05. Since both outer rings are provided with teeth, the corresponding sliding gear ring 08 is also provided with teeth that mate with them. This achieves a fixed connection between the connecting gear 05 and the turning gear shaft 02, meaning that the two can rotate synchronously. The operator can then rotate the turning gear shaft 02 by rotating the connecting gear 05 of the turning mechanism 04.

[0038] Furthermore, the turning mechanism 04 also includes a rotary handwheel 09 for facilitating the rotation of the connecting gear 05.

[0039] like Figure 1 and Figure 2 As shown, a rotary handwheel 09 is also provided at the rightmost end of the trolley mechanism 04, and the connecting gear 05 can be rotated by rotating the rotary handwheel 09, which makes it convenient for operators to use.

[0040] Preferably, the locking shaft assembly further includes: a threaded rod 10 and a locating pin 12; the threaded rod 10 is installed along the axis of the locking shaft pin sleeve 06 and is connected to the top end of the locking shaft pin sleeve 06 through an end cap 11, the threaded rod 10 is rotatable relative to the end cap 11, and the threaded rod 10 is threadedly connected to the pin 07; the locating pin 12 is radially inserted into the locking shaft pin sleeve 06, and its end is engaged with the pin 07 to restrict the rotation of the pin 07.

[0041] Specifically, such as Figure 3As shown, the locking shaft assembly also includes a threaded rod 10 and a positioning pin 12. In this embodiment, the up-and-down movement of the pin 07 along the inner wall of the locking shaft pin sleeve 06 is achieved by the rotation of the threaded rod 10. Specifically, an end cap 11 is installed on the top of the locking shaft pin sleeve 06, and a threaded rod 10 is inserted through the center of the end cap 11. The threaded rod 10 can rotate in the end cap 11. A nut is fitted on the top of the threaded rod 10 to prevent the threaded rod 10 from moving axially. The lower half of the threaded rod 10 is provided with an external thread, and this part is inserted into the threaded hole at the axis of the pin 07. At the same time, a positioning pin 12 is radially inserted through the cylindrical wall of the locking shaft pin sleeve 06 so that the pin 07 can only move axially and cannot rotate. In this way, when the threaded rod 10 is rotated, the pin 07 will convert its rotation into linear motion, thereby realizing the insertion and removal of the pin 07.

[0042] Furthermore, a strip groove 13 extending axially is provided on the outer circumference of the pin 07, and the positioning pin 12 is engaged in the strip groove 13 to restrict the axial movement of the pin 07.

[0043] In this embodiment, a slot 13 is provided at the top of the pin 07 along its axial direction, i.e., the direction in which the pin 07 moves. The positioning pin 12 extends into the slot 13. Thus, under the constraint of the positioning pin 12, the pin 07 can only move up and down, but cannot rotate. Furthermore, as... Figure 3 As shown, the length of the strip groove 13 is the travel range that the pin 07 can move. Therefore, the length of the strip groove 13 needs to be adjusted according to the actual situation to ensure that the pin 07 can complete the engagement with the turntable gear shaft 02.

[0044] Of course, the rotation of the pin 07 is restricted by setting the strip groove 13 in conjunction with the positioning pin 12. Alternatively, a snap-fit ​​protrusion or snap-fit ​​groove can be set on the circumferential surface of the pin 07 along its axial direction. However, the corresponding snap-fit ​​groove or snap-fit ​​protrusion needs to be set on the cylindrical wall of the locking pin sleeve 06 so that the pin 07 can only move axially and cannot rotate.

[0045] Furthermore, a rotating handle 14 is mounted on the top of the threaded rod 10, which is used to facilitate the rotation of the threaded rod 10.

[0046] In this embodiment, in order to facilitate the operator to rotate the threaded rod 10, a rotating handle 14 is provided at the top of the threaded rod 10. The operator can easily pull out or insert the pin 07 by rotating the handle 14.

[0047] Furthermore, a ring-shaped locking disc 15 is provided on the circumference of the rotating gear shaft 02. The locking disc 15 is radially provided with a positioning blind hole 16, which can be aligned with the pin shaft 07.

[0048] In this embodiment, to facilitate the engagement of the pin 07 with the turning gear shaft 02, a locking disc 15 is provided around the circumference of the turning gear shaft 02. A positioning blind hole 16 is radially provided on the locking disc 15. It is important to note that the plane containing the positioning blind hole 16 is precisely the plane on which the pin 07 moves. That is, by rotating the turning gear shaft 02, the positioning blind hole 16 can be aligned with the pin 07. At this point, the pin 07 can descend and be inserted into the positioning blind hole 16, thereby restricting the rotation of the turning gear shaft 02. Of course, the diameter of the positioning blind hole 16 needs to match the diameter of the pin 07 to prevent the pin 07 from colliding with the side wall of the positioning blind hole 16 each time it is inserted into the turning gear shaft 02, as the turning gear shaft 02 is still rotating. This extends the service life of the pin 07.

[0049] Preferably, the locking disc 15 has six positioning blind holes 16 evenly arranged along its circumference.

[0050] In this embodiment, to make locking the turning gear shaft 02 more convenient and quick, six positioning blind holes 16 are evenly arranged on the locking shaft disk 15. In this way, no matter which positioning blind hole 16 the pin 07 enters or exits, locking the turning gear shaft 02 can be completed.

[0051] Preferably, the circumference of the rotating gear shaft 02 is also provided with a dial 17 corresponding to the position of the positioning blind hole 16, and the housing 01 is provided with an observation hole for observing the dial 17 to determine whether the positioning blind hole 16 and the pin shaft 07 are aligned.

[0052] In this embodiment, a scale 17 is also provided on the circumference of the turning gear shaft 02, and a mark is provided at the position of the positioning blind hole 16 corresponding to the scale 17. In this way, the operator can determine the position of the positioning blind hole 16 by observing the position of the mark on the scale 17. Correspondingly, a pointer is fixedly provided near the scale 17, and the straight line formed by the pointer and the pin 07 is parallel to the axis of the turning gear shaft 02. That is, when the mark on the scale 17 corresponds to the pointer, it means that the pin 07 and the positioning blind hole 16 are in a straight line. At this time, the pin 07 can be inserted downward into the positioning blind hole 16 to lock the turning gear shaft 02. At the same time, an observation hole is also provided on the housing 01, which can just observe the scale 17 and the pointer.

[0053] Preferably, the cylinder wall of the locking pin sleeve 06 is provided with a proximity switch 18 in the axial direction for detecting whether the pin 07 is inserted in place.

[0054] In this embodiment, as Figure 3As shown, two proximity switches 18 are provided on the cylinder wall of the locking pin sleeve 06, and these two proximity switches 18 are on a straight line parallel to the axis. These two proximity switches 18 can determine the state of the pin 07, that is, whether the pin 07 is inserted or pulled out, so as to prevent the operator from making a misjudgment.

[0055] In summary, this utility model provides a pin-type wheel-locking device. Initially, the sliding gear and wheel-locking gear shaft 02 are not connected when the wheel-locking function is activated. The sliding gear ring 08 is moved via a shift fork and slider mechanism to connect the connecting gear 05 to the wheel-locking gear shaft 02, thus enabling the wheel-locking function. Specifically, the wheel-locking gear shaft 02 can be rotated via the wheel-locking mechanism 04. When locking the wheel-locking gear shaft 02 is required, the sliding gear ring 08 is moved via the shift fork and slider mechanism to connect the connecting gear 05 to the wheel-locking gear shaft 02, thereby rotating the wheel-locking gear shaft 02. This rotates the locking shaft disc 15 and the scale disc 17. Since the scale disc 17 and the locking shaft disc 15 have a corresponding positional relationship, the alignment of the scale disc 17 with the pointer can be observed through the observation hole to determine whether the positioning blind hole 16 on the locking shaft disc 15 is aligned with the pin 07. Once aligned, the pin 07 is lowered by manipulating the rotating handle 14, thus achieving the locking function. When the trolley gear shaft 02 is unlocked, the pin shaft 07 is raised by operating the rotating handle 14. If the positive pressure on the pin shaft 07 is too large due to the impact of water flow on the propeller, the trolley function described above can be used to rotate the trolley gear shaft 02 in the opposite direction. After removing some of the external force, the locking shaft can be easily disengaged from the positioning blind hole 16.

[0056] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A latch type turning lock shaft device, comprising a turning gear shaft (02) rotatably installed in a box (01), and an output gear (03) in driving connection with the turning gear shaft (02), characterized in that, The pin type disc wheel locking shaft device further comprises: a disc wheel mechanism (04) mounted on the box (01), and a connecting gear (05) of the disc wheel mechanism (04) capable of synchronous rotation or independent rotation with the disc wheel gear shaft (02); a locking shaft assembly comprising a locking shaft sleeve (06) and a pin shaft (07), the locking shaft sleeve (06) being arranged in the box (01), and the pin shaft (07) being movably arranged in the locking shaft sleeve (06), the pin shaft (07) being capable of moving axially along the locking shaft sleeve (06) to clamp the disc wheel gear shaft (02) and limit the rotation of the disc wheel gear shaft (02).

2. The latch wheel shaft device of claim 1, wherein The connecting gear (05) is coaxially arranged with the disc wheel gear shaft (02), a movable sliding gear ring (08) is arranged on the connecting gear (05), and the end of the connecting gear (05) and the end of the disc wheel gear shaft (02) close to each other are provided with gear teeth matched with the sliding gear ring (08), and the sliding gear ring (08) can connect the connecting gear (05) and the disc wheel gear shaft (02) to make them rotate synchronously.

3. The pin tumbler shaft turning lock device of claim 2, wherein, The disc wheel mechanism (04) further comprises a rotating handle (09) for facilitating the rotation of the connecting gear (05).

4. The pin tumbler shaft turning lock device of claim 2, wherein, The locking shaft assembly further comprises: a threaded rod (10) arranged along the axis of the locking shaft sleeve (06), and connected to the top end of the locking shaft sleeve (06) through an end cover (11), the threaded rod (10) being capable of rotating relative to the end cover (11), and the threaded rod (10) being threadedly connected with the pin shaft (07); a positioning pin (12) radially arranged in the locking shaft sleeve (06), and the end of the positioning pin (12) being clamped with the pin shaft (07) to limit the rotation of the pin shaft (07).

5. The pin tumbler key operated shaft turning lock device of claim 4, wherein, A strip-shaped groove (13) extending along the axial direction of the pin shaft (07) is arranged on the outer circumference of the pin shaft (07), and the positioning pin (12) is clamped in the strip-shaped groove (13) to limit the axial movement of the pin shaft (07).

6. The pin tumbler shaft turning lock device of claim 5, wherein, A rotating handle (14) is arranged on the top of the threaded rod (10), and the rotating handle (14) is used for facilitating the rotation of the threaded rod (10).

7. The pin tumbler shaft turning lock device of claim 5, wherein, An annular locking shaft disc (15) is arranged on the circumference of the disc wheel gear shaft (02), a positioning blind hole (16) is radially arranged on the locking shaft disc (15), and the positioning blind hole (16) is capable of being aligned with the pin shaft (07).

8. The pin tumbler shaft turning lock device of claim 7, wherein, Six positioning blind holes (16) are uniformly arranged on the circumference of the locking shaft disc (15).

9. The pin tumbler shaft turning lock device of claim 7, wherein, A scale disc (17) corresponding to the position of the positioning blind hole (16) is further arranged on the circumference of the disc wheel gear shaft (02), and an observation hole for observing the scale disc (17) is arranged on the box (01) to determine whether the positioning blind hole (16) is aligned with the pin shaft (07).

10. The pin tumblers lock shaft wheel apparatus of claim 9, wherein, A proximity switch (18) for detecting whether the pin shaft (07) is inserted in place is arranged on the side wall of the locking shaft sleeve (06) in the axial direction.

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