CN109990024A - It is a kind of greater than positive and negative 180 ° of position-limit mechanism - Google Patents
It is a kind of greater than positive and negative 180 ° of position-limit mechanism Download PDFInfo
- Publication number
- CN109990024A CN109990024A CN201910372780.5A CN201910372780A CN109990024A CN 109990024 A CN109990024 A CN 109990024A CN 201910372780 A CN201910372780 A CN 201910372780A CN 109990024 A CN109990024 A CN 109990024A
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- Prior art keywords
- limited block
- rebound
- shaft
- pedestal
- block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D71/00—Mechanisms for bringing members to rest in a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D71/00—Mechanisms for bringing members to rest in a predetermined position
- F16D71/02—Mechanisms for bringing members to rest in a predetermined position comprising auxiliary means for producing the final movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of greater than positive and negative 180 ° of position-limit mechanism, it is related to turntable limit technical field, including pedestal, sliding turntable, shaft, spacing rotating disk, two microswitches and two rebound resetting apparatuses, shaft sequentially passes through pedestal and sliding turntable and rotatably connects, spacing rotating disk is fixedly attached in shaft, and two microswitches and two rebound resetting apparatuses are fixedly connected with the base and are symmetrically arranged；Fixed limited block a in spacing rotating disk slides fixed limited block b on turntable, and limited block a is adapted to limited block b, and limited block b is adapted to the contact of two microswitches, and rebound resetting apparatus is adapted to limited block b, and the contact of limited block a and microswitch not can contact.The mechanism structure is simple, rationally distributed, limit is reliable, can be adjusted by replacing the limited block a and limited block b of different angle to the limit angle of position-limit mechanism, meet the requirement of various operating conditions.
Description
Technical field
The present invention relates to turntables to limit technical field, specially a kind of greater than positive and negative 180 ° of position-limit mechanism.
Background technique
In some equipment for needing to turn round operation, due to being connected with cable, oil pipe etc. on turntable, when turntable is to a side
To will cause when excessive rotation these cables, oil pipe etc. twisted it is disconnected, therefore on these turntables, it usually needs install position-limit mechanism additional to turning
The angle of revolution of platform is limited, to prevent the excessive rotation of rotation stop platform.In the prior art, the position-limit mechanism of turntable, which generallys use, dials
The contact with limited block is pitched to realize the physics limit of turntable, but this kind of mechanism is only used for limit range and is less than positive and negative 180 °
Limit, and in practical application, this is said mechanism institute nothing it is often required that turntable can rotate in the range of being greater than positive and negative 180 °
What method was realized.When needing to limiting greater than positive and negative 180 ° of range, conventional way is the multiple limit switches of installation, is led to
The response logic of control limit switch is crossed to realize limit, but the control of this limit method is complex, reliability is poor, and one
Denier limit failure will result directly in turntable and excessively rotate, and cause the failure of equipment.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of greater than positive and negative 180 ° of position-limit mechanism, should
Mechanism structure is simple, rationally distributed, limit is reliable, can be adjusted by changing the angle of limited block to the limit angle of the mechanism
Section, meets the requirement of various operating conditions.
The purpose of the present invention is achieved through the following technical solutions:
It is a kind of greater than positive and negative 180 ° of position-limit mechanism, including pedestal, sliding turntable, shaft, spacing rotating disk, two microswitches and
Two rebound resetting apparatuses, the shaft sequentially pass through the pedestal and the sliding turntable, the shaft and the pedestal and
The sliding turntable is connected by bearing, and the spacing rotating disk is fixedly attached to the shaft close to the one of the sliding turntable
End, two microswitches and two rebound resetting apparatuses are fixedly connected with the pedestal；
Along the symmetry axis that has been formed radially of the shaft, turns microswitch described in two and be symmetrical arranged along the symmetry axis, two
The rebound resetting apparatus is symmetrical arranged along the symmetry axis；
It is fixedly installed limited block a in the spacing rotating disk, is fixedly installed limited block b, the limit on the sliding turntable
The setting that one end of block a and one end of limited block b can contact, the other end of the limited block a can connect with the other end of limited block b
The setting of touching, the limited block b are provided with lug boss far from the side of the shaft, and the lug boss is opened with two fine motions
The accessible setting in one end of the accessible setting in the contact of pass, the rebound resetting apparatus and the limited block b, the limit
The distance of the edge of position block a to the rotating shaft core is less than the contact of the microswitch to the distance of the rotating shaft core.
Further, the line between the contact of two microswitches intersects setting with the central axis of the shaft.
Further, the rebound resetting apparatus includes spring and rebound block, and the sliding slot of annular is provided on the pedestal,
The rebound block is slidably arranged in the sliding slot, and the spring is set in the sliding slot, one end of the spring with
The pedestal is fixedly connected, the other end with it is described rebound block one end be fixedly connected, it is described rebound block the other end with it is described
Limited block b is adapted.
It further, further include rebound capping, the rebound capping is set to the notch position of the sliding slot, the rebound
Capping is connected by screw to the pedestal, and the spring one end and rebound capping far from the rebound block are fixed and connected
It connects.
Further, the pedestal further includes ring flange, and the ring flange is sheathed on outside the shaft, the ring flange with
The pedestal is connected by screw to, and the sliding slot is set on the ring flange.
Further, baffling device is fixedly installed on the pedestal, the baffling device is for limiting the limited block b
The shaft is followed to rotate.
Further, the baffling device includes mounting box, limited block c and spring b, and the mounting box and the pedestal are solid
Fixed connection, the limited block c are slidably arranged in the mounting box, one end of the spring b and the fixed company of institute's mounting box
It connects, the other end is fixedly connected with the limited block c, the one end of the limited block c far from the spring b and the limited block b
Accessible setting.
Further, the limited block a and limited block b is sector structure.
Further, the limited block a is removably connect with the spacing rotating disk, the limited block b and the sliding
Turntable removably connects.
The beneficial effects of the present invention are:
1. the position-limit mechanism takes microswitch and springs back the form that resetting apparatus combines and limited, structure is simple, cloth
Office is rationally.When microswitch failure, rebound resetting apparatus plays the role of further limiting firmly, can effectively avoid turntable excessive
Equipment damage caused by rotation.Microswitch is used rebound resetting apparatus in actual use and is limited as main position-limit mechanism
The case where position, is less, and the impact being subject to is also less, and service life is longer.The position-limit mechanism will be by that will control limit and physics limit
The mode of position combines, compared with the prior art, more simple in control, and the reliability limited is stronger.
2. two microswitches are angle point in 180 ° of settings using spindle central, it may make the limit range of the position-limit mechanism big
In positive and negative 180 °.Fan-shaped structure is arranged in limited block a and limited block b, and dismountable with spacing rotating disk and sliding turntable respectively
Connection is carried out replacing the adjustment that limit angle can be realized, be operated extremely convenient by changing its angular dimension.
3. rebound resetting apparatus is made of rebound block, spring and rebound capping, sliding slot is processed on the base, rebound block is risen
To guiding role, rebound capping can effectively prevent rebound block and spring to collapse out, this makes the structure of the rebound resetting apparatus simple,
It is easy to use, stable and safe and reliable.
4. ring flange is arranged, only need processing mounting holes that can complete the assembly of the position-limit mechanism by ring flange on pedestal,
Its structure is simple, easy for installation, is suitable for various types of turntables and uses, applied widely.Once sliding slot or rebound are multiple simultaneously
Position device damages, and can carry out integral replacing to whole its of ring flange, it is easier to repair.
5. be arranged baffling device, can effectively avoid in practical application, limited block b and sliding turntable frictional force effect
Under rotate together with shaft, and be directly triggered to microswitch the mistake of equipment caused to limit and happen.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram greater than positive and negative 180 ° of position-limit mechanism of the present invention；
Fig. 2 is a kind of schematic cross-sectional view greater than positive and negative 180 ° of position-limit mechanism of the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1 and Figure 2, a kind of greater than positive and negative 180 ° of position-limit mechanism, including pedestal 1, sliding turntable 5, shaft 9, limit
Position 10, two microswitches 4 of turntable and two rebound resetting apparatuses 2.Shaft 9 sequentially passes through pedestal 1 and sliding turntable 5, shaft 9
It is connect by bearing with pedestal 1 and sliding turntable 5, so that shaft 9 can be freely rotated in pedestal 1.Spacing rotating disk 10 is fixed
Shaft 9 is socketed in close to one end of sliding turntable 5, rotates together it with the rotation of shaft 9.
Above-mentioned two microswitch 4 and two rebound resetting apparatuses 2 are fixedly connected with pedestal 1, two 4 Hes of microswitch
Two rebound resetting apparatuses 2 are respectively to be symmetrical arranged, and pair of the symmetry axis of two microswitches 4 and two rebound resetting apparatuses
Claim overlapping of axles.The symmetry axis is located at shaft 9 in the radial direction, intersects with the central axis of shaft 9.
It is fixedly installed limited block a11 in spacing rotating disk 10, slides and is fixedly installed limited block b12 on turntable 5.Limit
The setting that one end of block a11 and one end of limited block b12 can contact, the other end of limited block a11 and the other end of limited block b12
Accessible setting, limited block b12 are provided with lug boss, the contact of lug boss and two microswitches 4 far from the side of shaft 9
The accessible setting in one end of accessible setting, rebound resetting apparatus 2 and limited block b12.The edge of limited block a11 to turn
The distance in 9 axle center of axis is less than the contact of microswitch 4 to the distance in 9 axle center of shaft, so that limited block a11 is with spacing rotating disk 10
It will not be in contact with the contact of microswitch 4 when rotation.
When implementing, pedestal 1 is mountable to be set as pedestal 1 on turntable or directly by turntable.Direction as shown in Figure 1 is
Example drives limited block a11 rotation by spacing rotating disk 10, because of the edge of above-mentioned limited block a11 when shaft 9 is rotated clockwise
Distance to 9 axle center of shaft is less than the contact of microswitch 4 will not trigger bit to the distance in 9 axle center of shaft, in rotation process
Microswitch 4 in right side, behind the position for crossing the microswitch 4, as it is continued to rotate, be located at the one end in left side with
The right end of limited block b12 contacts, and limited block b12 and sliding turntable 5 will be driven to rotate together, when limited block b12 turns to left side
Microswitch 4 when, contacted with its contact, trigger the microswitch 4 response, realize limit.In the mistake for triggering the microswitch 4
The left end of Cheng Zhong, limited block b12 are contacted with the rebound resetting apparatus 2 in diagram left side.When shaft 9 rotates in an anti-clockwise direction,
It springs back under the action of resetting apparatus 2, limited block b12 and sliding turntable 5 rotate together an angle, so that the fine motion of itself and left side
The separation of 4 phase of switch, is detached from triggering state.As limited block a11 follows continuing to rotate for shaft 9, right side and a left side are crossed respectively
After the microswitch 4 of side, the right end of limited block a11 is contacted with the left end of limited block b12, drives limited block b12 and sliding turntable 5
It rotates counterclockwise together, when turning to the microswitch 4 on right side, triggers the microswitch 4 and realize limit, and time with right side
Resetting apparatus 2 is played to contact.
The position-limit mechanism takes microswitch 4 and springs back the form that resetting apparatus 2 combines and limited, structure letter
It is single, it is rationally distributed.When microswitch 4 fails, rebound resetting apparatus 2 plays the role of further limiting firmly, can effectively avoid
Equipment damage caused by turntable excessively rotates.Microswitch 4 is used as main position-limit mechanism, uses rebound in actual use and resets dress
Set that 2 the case where being limited are less, and the impact being subject to is also less, and service life is longer.The position-limit mechanism will be by that will control limit
The mode of position and physics limit combines, compared with the prior art, more simple in control, and the reliability limited is stronger.
When it is implemented, the line between the contact of two microswitches 4 intersects setting, i.e., two with the central axis of shaft 9
A microswitch 4 is angle point in 180 ° of settings using the center of shaft 9, then the limit range of the position-limit mechanism can be realized greater than positive and negative
180°。
Above-mentioned rebound resetting apparatus 2 includes spring 21 and rebound block 22.The sliding slot 24 of annular, rebound are provided on pedestal 1
Block 22 is slidably arranged in sliding slot 24, and 24 pairs of rebound blocks 22 of sliding slot play the role of limition orientation.Spring 21 is set to cunning
In slot 24, one end of spring 21 is fixedly connected with pedestal 1, and the other end is fixedly connected with one end of rebound block 22, springs back block 22
The other end be adapted with limited block b12.Specifically, rebound resetting apparatus further includes rebound capping 2, rebound capping 2 is set to
The notch position of sliding slot 24, rebound capping 2 are connected by screw to pedestal 1, spring 21 one end and rebound far from rebound block 22
Capping 2 is fixedly connected.Rebound block 22 and spring 21 are enclosed in sliding slot 24 by rebound capping 2, and apparatus structure is simple, and can have
Effect avoids spring 21 and rebound block 22 from collapsing out of sliding slot 24 out, and safety and reliability is strong.When limited block b12 is in limited block
The drive backspin of a11 go to it is above-mentioned with rebound resetting apparatus 2 contact when, i.e., itself and spring back block 22 end thereof contacts, spring back block 22
Displacement is generated under its drive, compresses the spring 21 of its other end, spring 21 stores elastic potential energy, when limited block a11 opposite direction
When being rotated away, spring 21 is sprung back, the potential energy release of storage, so that position of the limited block b12 far from microswitch 4.
When it is implemented, pedestal 1 further includes ring flange 3, ring flange 3 is sheathed on outside shaft 9, and ring flange 3 passes through with pedestal 1
Screw connection, above-mentioned sliding slot 24 and rebound resetting apparatus 2 are all set on ring flange 3.In practical application, pedestal 1 is usual
For the self structure of turret plant, itself simultaneously is inconvenient to carry out the processing of sliding slot etc..Ring flange 3 is added on pedestal 1 by upper
The limit needs of the position-limit mechanism can be met by stating set-up mode also, simple in construction, easy to disassemble and assemble；Once simultaneously sliding slot 24 or return
It plays resetting apparatus to damage, integral replacing can be carried out to it, it is easier to repair.
Because the sliding turntable 5 connecting with limited block b12 is connect with shaft 9 by bearing, in practical application, its frictional force
Though it is small but can not be zero, to prevent limited block b12 and sliding turntable 5 under the action of the frictional force as shaft 9 turns together
It is dynamic, it is completely in the end for springing back block 22 before the trigger point of microswitch 4, works as limit
When position block b12 turns to the rebound block position with axis, because the power driven by axis is smaller, it is not enough to compressed spring 21 and is triggered to
The microswitch 4.From the above process it is found that having higher requirement to the setting position of rebound block 22.Therefore, it is being embodied
When, baffling device is fixedly installed on pedestal 1, baffling device can effectively prevent limited block b12 and sliding turntable 5 in the frictional force
Under the action of rotate together with shaft 9, be triggered to microswitch 4 when limited block b12 is not limited block a11 contact, make
The mistake of forming apparatus limits situation.
In the specific implementation, which includes mounting box 61, limited block c62 and spring b, mounting box 61 and pedestal 1
It being fixedly connected, limited block c62 is slidably arranged in mounting box 61, and one end of spring b is fixedly connected with institute mounting box 61,
The other end is fixedly connected with limited block c62, the one end of limited block c62 far from spring b and the accessible setting of limited block b12.It is limiting
Position block b12 is under the drive of limited block a11 when moving, suffered by driving force it is larger, as limited block c62 and limited block b12
Contact, the meeting under the biggish driving force so that limited block b12 compressed spring b and retract, the baffling device will not be to limit at this time
Position block b12 causes to stop, and limited block b12 can be passed through, and after limited block b12 passes through, spring b is sprung back so that limited block c62
It resets；It, should because the driving force of the movement is the frictional force being present at bearing when limited block b12 is rotated and moved by shaft 9
Driving force is smaller, is not enough to that it is allowed to retract when limited block b12 is moved to limited block c62 at this time, limited block c62 is to limited block b12
It causes to stop, it is avoided to continue to move to.
Further, limited block a11 and limited block b12 is sector structure, and limited block a11 and spacing rotating disk 10 are detachable
Connection, limited block b12 with sliding turntable 5 removably connect.The limit angle to the mechanism is convenient to be adjusted.It is adjusted
Adjusting method is the limited block a11 and limited block b12 by replacing different fan angles, is adjusted to the limit angle of position-limit mechanism
It is whole, adjust the requirements that can simply meet various different limit angle operating conditions.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (9)
1. a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that including pedestal (1), sliding turntable (5), shaft (9),
Spacing rotating disk (10), two microswitches (4) and two rebound resetting apparatuses (2), the shaft (9) sequentially pass through the pedestal
(1) it is connect by bearing with the sliding turntable (5), the shaft (9) with the pedestal (1) and the sliding turntable (5),
The spacing rotating disk (10) is fixedly attached to the shaft (9) close to one end of sliding turntable (5), and two fine motions are opened
It closes (4) and two rebound resetting apparatuses (2) is fixedly connected with the pedestal (1)；
Along the symmetry axis that has been formed radially of the shaft (9), turns microswitch (4) described in two and set along the symmetrical axial symmetry
It sets, two rebound resetting apparatuses (2) are symmetrical arranged along the symmetry axis；
Limited block a(11 is fixedly installed on the spacing rotating disk (10)), limited block is fixedly installed on the sliding turntable (5)
B(12), the limited block a(11) one end and limited block b(12) the accessible setting in one end, the limited block a(11)
The other end setting accessible with the other end of limited block b(12), the limited block b(12) side far from the shaft (9)
It is provided with lug boss, the accessible setting in the contact of the lug boss and two microswitches (4), the rebound resets
Device (2) and the limited block b(12) the accessible setting in one end, the limited block a(11) edge to the shaft (9)
The distance in axle center is less than the contact of the microswitch (4) to the distance in the shaft (9) axle center.
2. according to claim 1 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that two fine motions are opened
The line closed between the contact of (4) intersects setting with the central axis of the shaft (9).
3. according to claim 2 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that the rebound resets dress
Setting (2) includes spring (21) and rebound block (22), and the sliding slot (24) of annular, the rebound block are provided on the pedestal (1)
(22) it is slidably arranged in the sliding slot (24), the spring (21) is set in the sliding slot (24), the spring
(21) one end is fixedly connected with the pedestal (1), and the other end is fixedly connected with one end of rebound block (22), and described time
The other end of bullet block (22) is adapted with the limited block b(12).
4. according to claim 3 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that further include rebound capping
(2), the rebound capping (2) is set to the notch position of the sliding slot (24), the rebound capping (2) and the pedestal (1)
It is connected by screw to, the spring (21) covers (2) with the rebound far from one end of rebound block (22) and is fixedly connected.
5. according to claim 4 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that the pedestal (1) is also
Including ring flange (3), the ring flange (3) is sheathed on the shaft (9) outside, and the ring flange (3) passes through with the pedestal (1)
Screw connection, the sliding slot (24) are set on the ring flange (3).
6. according to claim 2 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that on the pedestal (1)
It is fixedly installed baffling device, the baffling device is for limiting the limited block b(12) follow the shaft (9) to rotate.
7. according to claim 6 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that the baffling device packet
Include mounting box (61), limited block c(62) and spring b, the mounting box (61) be fixedly connected with the pedestal (1), the limit
Block c(62) it is slidably arranged in the mounting box (61), one end of the spring b is fixedly connected with institute's mounting box (61),
Its other end is fixedly connected with the limited block c(62), the limited block c(62) far from the spring b one end and the limit
Position block b(12) it can contact setting.
8. a kind of greater than positive and negative 180 ° of position-limit mechanism according to claim 2 to 7 any one, which is characterized in that institute
State limited block a(11) and limited block b(12) it is sector structure.
9. according to claim 8 a kind of greater than positive and negative 180 ° of position-limit mechanism, which is characterized in that the limited block a
(11) removably it is connect with the spacing rotating disk (10), the limited block b(12) removably connect with the sliding turntable (5)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372780.5A CN109990024B (en) | 2019-05-06 | 2019-05-06 | Limiting mechanism with angle larger than plus or minus 180 degrees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910372780.5A CN109990024B (en) | 2019-05-06 | 2019-05-06 | Limiting mechanism with angle larger than plus or minus 180 degrees |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109990024A true CN109990024A (en) | 2019-07-09 |
| CN109990024B CN109990024B (en) | 2020-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910372780.5A Active CN109990024B (en) | 2019-05-06 | 2019-05-06 | Limiting mechanism with angle larger than plus or minus 180 degrees |
Country Status (1)
| Country | Link |
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| CN (1) | CN109990024B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893521A (en) * | 2022-05-27 | 2022-08-12 | 中国船舶集团有限公司第七二三研究所 | Mechanical and electrical limiting mechanism with rotation angle range exceeding 360 degrees |
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| CN204312595U (en) * | 2014-11-30 | 2015-05-06 | 重庆泽田汽车部件有限责任公司 | Conveniently check the lockable mechanism of rotation angle |
| CN104503534A (en) * | 2014-12-08 | 2015-04-08 | 河北汉光重工有限责任公司 | Circular motion spacing device |
| DE102015200737A1 (en) * | 2015-01-19 | 2016-07-21 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | disc brake |
| CN208433334U (en) * | 2018-06-08 | 2019-01-25 | 歌尔智能科技有限公司 | A kind of resetting-mechanism and audio frequency apparatus |
| CN109469698A (en) * | 2018-12-12 | 2019-03-15 | 上海卫星装备研究所 | Single-point slewing limit mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893521A (en) * | 2022-05-27 | 2022-08-12 | 中国船舶集团有限公司第七二三研究所 | Mechanical and electrical limiting mechanism with rotation angle range exceeding 360 degrees |
| CN114893521B (en) * | 2022-05-27 | 2023-09-26 | 中国船舶集团有限公司第七二三研究所 | Mechanical and electrical limiting mechanism with rotation angle range exceeding 360 degrees |
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