CN112694026A - Winch stall self-locking structure utilizing electromagnetic variant principle - Google Patents
Winch stall self-locking structure utilizing electromagnetic variant principle Download PDFInfo
- Publication number
- CN112694026A CN112694026A CN202011520725.5A CN202011520725A CN112694026A CN 112694026 A CN112694026 A CN 112694026A CN 202011520725 A CN202011520725 A CN 202011520725A CN 112694026 A CN112694026 A CN 112694026A
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- Prior art keywords
- self
- locking
- fixed
- fixedly connected
- electromagnetic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/32—Detent devices
- B66D5/34—Detent devices having latches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/30—Rope, cable, or chain drums or barrels
- B66D1/34—Attachment of ropes or cables to drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
Abstract
The invention relates to the technical field of winches and discloses a winch stall self-locking structure utilizing an electromagnetic variant principle, which comprises an installation seat, wherein the front surface of the installation seat is fixedly connected with a shell, the front surface of the shell is fixedly connected with a winding disc, the side surface of the shell is movably connected with a fixed screw rod, the front surface of the shell is provided with a fixed box, and the inside of the fixed box is movably connected with a stranded rope; through the matched use of the self-locking block and the self-locking piece, when the winch is stalled during use, the winch automatically self-locks, so that the economic loss caused by secondary trapping of a vehicle and even damage of the vehicle due to over-high rotating speed and uncontrollable control is avoided, and the service life of parts in the winch is prolonged to a certain extent; simultaneously, the rope winding device is matched with the fixing box and the fixing screw rod, so that the twisted rope can be uniformly wound on the winding disc when the twisted rope is wound, and the rope end can be fixed after the winding is finished, so that the stability of the twisted rope is ensured.
Description
Technical Field
The invention relates to the technical field of winches, in particular to a winch stall self-locking structure utilizing an electromagnetic variant principle.
Background
The winch is a winch drum with a vertical installation, can wind machinery without storing a rope under the driving of power, also refers to a winch with a rotating axis vertical to a deck, is a self-protection and traction device of vehicles and ships, is manufactured by utilizing a wheel axle principle, rotates by power or manpower, is mostly used for enabling the vehicles to get rid of difficulties by common electric winches, when the winch pulls the vehicles, the rotating speed of the winch needs to be controlled, if the rotating speed of the winch is too fast or stalled, the vehicles can be secondarily trapped, the rotating speed of the electric winches on the market is difficult to control due to different traction force, the conditions of the too fast rotating speed or stalled frequently occur, the vehicles can be possibly injured, economic loss is brought, and the service lives of internal parts of the winch can be reduced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a winch stall self-locking structure utilizing an electromagnetic variant principle, which has the advantage of automatic self-locking when the rotation speed of a winch is too high or stalled, and solves the problem that the rotation speed is difficult to control due to different traction forces of a common winch, and the winch stall can be possibly caused.
(II) technical scheme
In order to achieve the purpose of automatic self-locking when the winch rotates too fast or stalls, the invention provides the following technical scheme: a winch stall self-locking structure utilizing an electromagnetic variation principle comprises an installation seat, wherein the front of the installation seat is fixedly connected with a shell, the front of the shell is fixedly connected with a winding disc, the side surface of the shell is movably connected with a fixed screw, the front of the shell is provided with a fixed box, the front of the shell is provided with a limiting groove, and the inside of the fixed box is movably connected with a stranded rope; a rotating disc is fixedly connected to the inside of the winding disc, a trigger mechanism is arranged inside the rotating disc, a limiting mechanism is arranged inside the rotating disc, a self-locking disc is movably connected to the inside of the rotating disc, a self-locking plate is fixedly connected to the front side of the self-locking disc, and a self-locking block is arranged inside the rotating disc;
the trigger mechanism comprises an electromagnetic box, a fixed column is fixedly connected inside the electromagnetic box, a reset spring is fixedly connected to the side face of the fixed column, one end, far away from the fixed column, of the reset spring is fixedly connected with a first movable contact, and a first fixed contact is fixedly connected inside the electromagnetic box;
the limiting mechanism comprises a packaging shell, a movable contact II is movably connected inside the packaging shell, a fixed contact II is fixedly connected inside the packaging shell, and an electrorheological fluid is arranged inside the packaging shell.
Preferably, the side surface of the fixed box is provided with a thread groove, and the thread groove is matched with the fixed screw; the size and the shape of the limiting groove are matched with the size of the stranded rope.
Preferably, the middle points of the winding disc, the rotating disc and the self-locking disc are on the same straight line, and the rotating disc and the self-locking disc are arranged in the shell.
Preferably, the triggering mechanism is provided with six groups, the fixed column is arranged in the middle of the electromagnetic box, two return springs are arranged and are respectively and fixedly connected to the left side and the right side of the fixed column, two movable contacts are arranged and are respectively and fixedly connected to one ends, far away from the fixed column, of the two return springs, and two fixed contacts are arranged and are respectively and fixedly connected to the left end and the right end in the electromagnetic box; the six groups of trigger mechanisms are symmetrically and uniformly distributed by taking the circle center of the rotary table as a midpoint, and the shapes and the sizes of the self-locking block and the self-locking plate are mutually matched.
Preferably, the main materials of the electrorheological fluid are gypsum, lime, carbon powder and olive oil, and the electrorheological fluid is solid in a power-on state and liquid in a non-power-on state.
Preferably, stop gear is provided with six groups, and every group contains two stop gear that the specification is the same, the piece is provided with six and dimensional specification is the same from the locking, and six from the locking correspond with six groups of stop gear, and the movable contact two that two stop gear of the same group include, respectively with the left and right sides both ends swing joint of the piece of the same group from the locking.
Preferably, the self-locking block is made of a magnetic material, the magnetic pole is an N pole, the N pole is displayed when the electromagnetic box is in an electrified state, and the polarity is not displayed when the electromagnetic box is not in an electrified state; the electromagnetic box is respectively and electrically connected with the first movable contact and the first fixed contact, and the second movable contact and the second fixed contact are respectively and electrically connected with the first movable contact and the first fixed contact.
Preferably, the first movable contact and the first fixed contact are both provided with a current passing part, the first fixed contact is an electromagnet, and the first movable contact is a conductive material capable of being attracted by a magnetic pole; and the second movable contact and the second fixed contact are electrically connected with the current transformer respectively.
(III) advantageous effects
Compared with the prior art, the invention provides a winch stall self-locking structure utilizing an electromagnetic variant principle, which has the following beneficial effects:
according to the winch stall self-locking mechanism utilizing the electromagnetic variant principle, through the matched use of the self-locking block and the self-locking piece, when the winch stalls during use, the winch stall self-locking mechanism automatically self-locks, so that the economic loss caused by secondary trapping of a vehicle and even damage of the vehicle due to the fact that the rotating speed is too high and the control is not available is avoided, and the service life of internal parts of the winch is prolonged to a certain extent; simultaneously, the rope winding device is matched with the fixing box and the fixing screw rod, so that the twisted rope can be uniformly wound on the winding disc when the twisted rope is wound, and the rope end can be fixed after the winding is finished, so that the stability of the twisted rope is ensured.
Drawings
FIG. 1 is a schematic view showing the connection of the structures of the present invention;
fig. 2 is a schematic view of the internal structure of fig. 1, in which the angles and distances between two adjacent self-locking blocks are the same and are respectively marked as θ 1, θ 2, θ 3, θ 4, θ 5 and θ 6;
FIG. 3 is a schematic view of the connection between the turntable and the self-locking plate of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the trigger mechanism of the present invention;
FIG. 5 is a schematic diagram of the movement traces of the structures shown in FIG. 4 according to the present invention;
FIG. 6 is an enlarged view taken at A of FIG. 3 according to the present invention.
In the figure: 1. a mounting seat; 2. a housing; 3. a winding disc; 4. fixing the screw rod; 5. a fixing box; 6. a limiting groove; 7. stranding a rope; 8. a turntable; 9. a trigger mechanism; 10. a limiting mechanism; 11. a self-locking disc; 12. a self-locking block; 13. a self-locking plate; 91. an electromagnetic box; 92. fixing a column; 93. a return spring; 94. a first movable contact; 95. a first fixed contact; 101. a package housing; 102. a second fixed contact; 103. a second movable contact; 104. an electrorheological fluid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a winch stall self-locking structure using an electromagnetic variant principle comprises a mounting seat 1, wherein a casing 2 is fixedly connected to the front of the mounting seat 1, a winding disc 3 is fixedly connected to the front of the casing 2, a fixing screw 4 is movably connected to the side of the casing 2, a fixing box 5 is arranged on the front of the casing 2, a thread groove is formed in the side of the fixing box 5 and is matched with the fixing screw 4, the fixing screw 4 penetrates through the fixing box 5, a limiting groove 6 is formed in the front of the casing 2, the size and the shape of the limiting groove 6 are matched with the size of a stranded rope 7, the stranded rope 7 is circular when passing through the limiting groove 6, and the stranded rope 7 is movably connected to the inside of the fixing box 5;
the inner part of the winding disc 3 is fixedly connected with a rotating disc 8, the inner part of the rotating disc 8 is provided with a trigger mechanism 9, six groups of the trigger mechanism 9 are arranged, the fixed column 92 is arranged in the middle of the electromagnetic box 91, two return springs 93 are arranged and are respectively and fixedly connected to the left side and the right side of the fixed column 92, two movable contacts 94 are arranged and are respectively and fixedly connected to one ends, far away from the fixed column 92, of the two return springs 93, and two fixed contacts 95 are arranged and are respectively and fixedly connected to the left end and the right end in the electromagnetic box 91; the six groups of trigger mechanisms 9 are symmetrical and uniformly distributed by taking the circle center of the turntable 8 as a midpoint;
the shapes and the sizes of the self-locking block 12 and the self-locking piece 13 are matched with each other, the limiting mechanism 10 is arranged in the rotary table 8, six groups of limiting mechanisms 10 are arranged in each group, each group comprises two limiting mechanisms 10 with the same specification, the self-locking block 12 is provided with six limiting mechanisms with the same specification, the six self-locking blocks 12 correspond to the six groups of limiting mechanisms 10, the two limiting mechanisms 10 in the same group comprise two movable contacts 103 which are respectively movably connected with the left end and the right end of the self-locking block 12 in the same group, and when the self-locking block 12 moves, the two movable contacts 103 connected with the left end and the right end of the self-locking block can be driven to synchronously move;
the inside of the rotary table 8 is movably connected with a self-locking disc 11, the middle points of the winding disc 3, the rotary table 8 and the self-locking disc 11 are on the same straight line, the rotary table 8 and the self-locking disc 11 are arranged inside the shell 2, the front side of the self-locking disc 11 is fixedly connected with a self-locking plate 13, a self-locking block 12 is arranged inside the rotary table 8, the self-locking block 12 is made of magnetic materials, the magnetic pole is an N pole, the N pole is displayed when the electromagnetic box 91 is in an electrified state, and the polarity is not displayed when the electromagnetic box is not; the electromagnetic box 91 is respectively and electrically connected with the first movable contact 94 and the first fixed contact 95, and the second movable contact 103 and the second fixed contact 102 are respectively and electrically connected with the first movable contact 94 and the first fixed contact 95;
the trigger mechanism 9 comprises an electromagnetic box 91, a fixed column 92 is fixedly connected inside the electromagnetic box 91, a return spring 93 is fixedly connected to the side face of the fixed column 92, one end, far away from the fixed column 92, of the return spring 93 is fixedly connected with a first movable contact 94, a first fixed contact 95 is fixedly connected inside the electromagnetic box 91, the first movable contact 94 and the first fixed contact 95 are both provided with electric currents to pass through, the first fixed contact 95 is arranged to be an electromagnet, and the first movable contact 94 is arranged to be a conductive material capable of being attracted by a magnetic pole; the second movable contact 103 and the second fixed contact 102 are respectively electrically connected with the electrorheological fluid 104;
the limiting mechanism 10 comprises a packaging shell 101, a movable contact II 103 is movably connected inside the packaging shell 101, a fixed contact II 102 is fixedly connected inside the packaging shell 101, an electrorheological body 104 is arranged inside the packaging shell 101, the electrorheological body 104 is mainly made of gypsum, lime, carbon powder and olive oil, and the electrorheological body 104 is in a solid state in an electrified state and in a liquid state in a non-electrified state;
when the rotating disc is used, the inner rotating disc 8 starts to rotate, the inner structure of the inner rotating disc synchronously rotates, when the rotating speed of the rotating disc 8 is normal and the rotating disc does not stall, the centrifugal force applied to the movable contact I94 and the reset spring 93 is small, so that the movable contact I94 cannot be contacted with the fixed contact I95, the circuit is not communicated, namely the electromagnetic box 91 electrically connected with the movable contact I94 is not magnetic, and the self-locking block 12 is not influenced by the repulsion force of like magnetic force, namely the movement of the self-locking plate 13 cannot be limited, and the normal rotation of the rotating disc 8 is not influenced;
please refer to fig. 2 for the above process;
when the rotating disk 8 suddenly accelerates or stalls, the internal structure thereof also accelerates, at this time, the centrifugal force applied to the first movable contact 94 and the return spring 93 increases, under the action of the centrifugal force, the first movable contact 94 starts to move towards the first fixed contact 95 until the first movable contact and the first fixed contact 95 are contacted with the first fixed contact, because the first movable contact 94 and the first fixed contact 95 are both provided with current, and the first fixed contact 95 is provided with an electromagnet, the first movable contact 94 is provided with a conductive material which can be attracted by a magnetic pole, the self-locking block 12 is made of a magnetic material, the magnetic pole is an N pole, the N pole is displayed when the electromagnetic box 91 is in an electrified state, the polarity is not displayed when the electromagnetic box 91 is in a non-electrified state, the electromagnetic box 91 is respectively and electrically connected with the first movable contact 94 and the first fixed contact 95, so that the electromagnetic box 91 displays the N pole, the self-locking block 12 is pushed away from the electromagnetic box 91, at, at this time, the rotating disc 8 stops rotating;
meanwhile, because the two movable contacts 103 included in the two limiting mechanisms 10 in the same group are respectively movably connected with the left end and the right end of the self-locking block 12 in the same group, when the self-locking block 12 moves, the two movable contacts 103 connected with the left end and the right end of the self-locking block can be driven to synchronously move in the same direction, at this time, the two movable contacts 103 are in contact with the two fixed contacts 102, because the two movable contacts 103 and the two fixed contacts 102 are respectively electrically connected with the first movable contact 94 and the first fixed contact 95, and the two movable contacts 103 and the two fixed contacts 102 are respectively electrically connected with the current variant 104, at this time, current passes through the inside of the current variant 104, because the current variant 104 is in a solid state in an electrified state and in a liquid state in a non-electrified state, at this time, the current variant 104 is in a solid state, the position of the self.
Please refer to fig. 4 and 5 for the above process;
because the rotary table 8 is fixedly connected inside the winding disc 3, when the rotary table 8 rotates, the winding disc 3 synchronously rotates in the same direction to start winding the stranded rope 7, and because the size and the shape of the limiting groove 6 are matched with the size of the stranded rope 7, the stranded rope 7 is uniformly wound on the outer side of the winding disc 3 through the limiting groove 6, after the winding is stopped, the rope head of the stranded rope 7 can be manually placed in the fixed box 5, the side surface of the fixed box 5 is provided with a thread groove, the thread groove is matched with the fixed screw rod 4, and at the moment, the stranded rope 7 can be fixed inside the fixed box 5 by rotating the fixed screw rod 4, so that the stability is improved;
the above process is shown in FIG. 1.
In conclusion, the winch stall self-locking mechanism utilizing the electromagnetic variant principle automatically self-locks under the condition of stall when the winch is used through the matched use of the self-locking block 12 and the self-locking piece 13, so that the economic loss caused by secondary vehicle distress and even vehicle damage due to over-high rotating speed and uncontrollable control is avoided, and the service life of internal parts of the winch is prolonged to a certain extent; simultaneously, the rope winding device is used by matching the fixing box 5 with the fixing screw rod 4, the twisted rope 7 can be uniformly wound on the winding disc 3 when the twisted rope 7 is wound, and after the winding is finished, the rope end can be fixed, so that the stability of the twisted rope 7 is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an utilize capstan winch stall self-locking structure of electromagnetic variant principle, includes mount pad (1), its characterized in that: the front side of the mounting seat (1) is fixedly connected with a shell (2), the front side of the shell (2) is fixedly connected with a winding disc (3), the side surface of the shell (2) is movably connected with a fixed screw (4), the front side of the shell (2) is provided with a fixed box (5), the front side of the shell (2) is provided with a limiting groove (6), and the inside of the fixed box (5) is movably connected with a stranded rope (7); a rotating disc (8) is fixedly connected to the inside of the winding disc (3), a trigger mechanism (9) is arranged inside the rotating disc (8), a limiting mechanism (10) is arranged inside the rotating disc (8), a self-locking disc (11) is movably connected to the inside of the rotating disc (8), a self-locking plate (13) is fixedly connected to the front side of the self-locking disc (11), and a self-locking block (12) is arranged inside the rotating disc (8);
the trigger mechanism (9) comprises an electromagnetic box (91), a fixed column (92) is fixedly connected inside the electromagnetic box (91), a return spring (93) is fixedly connected to the side surface of the fixed column (92), one end, far away from the fixed column (92), of the return spring (93) is fixedly connected with a first movable contact (94), and a first fixed contact (95) is fixedly connected inside the electromagnetic box (91);
the limiting mechanism (10) comprises a packaging shell (101), a movable contact II (103) is movably connected inside the packaging shell (101), a fixed contact II (102) is fixedly connected inside the packaging shell (101), and an electrorheological body (104) is arranged inside the packaging shell (101).
2. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the side surface of the fixed box (5) is provided with a thread groove, and the thread groove is matched with the fixed screw (4); the size and the shape of the limiting groove (6) are matched with the size of the stranded rope (7).
3. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the middle points of the winding disc (3), the rotating disc (8) and the self-locking disc (11) are on the same straight line, and the rotating disc (8) and the self-locking disc (11) are arranged in the shell (2).
4. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the trigger mechanism (9) is provided with six groups, the fixed column (92) is arranged in the middle of the electromagnetic box (91), two reset springs (93) are arranged and fixedly connected to the left side and the right side of the fixed column (92) respectively, two movable contacts I (94) are arranged and fixedly connected to one ends, far away from the fixed column (92), of the two reset springs (93) respectively, and two fixed contacts I (95) are arranged and fixedly connected to the left end and the right end inside the electromagnetic box (91) respectively; the six groups of trigger mechanisms (9) are symmetrically and uniformly distributed by taking the circle center of the rotary table (8) as the midpoint, and the shapes and the sizes of the self-locking blocks (12) and the self-locking pieces (13) are mutually matched.
5. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the main materials of the electrorheological fluid (104) are gypsum, lime, carbon powder and olive oil, and the electrorheological fluid (104) is in a solid state in a power-on state and in a liquid state in a non-power-on state.
6. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: stop gear (10) are provided with six groups, and every group contains two stop gear (10) that the specification is the same, from locking piece (12) be provided with six and dimensional specification the same, six from locking piece (12) correspond with six stop gear (10) of group, and movable contact two (103) that two stop gear (10) of the same group include are with both ends swing joint about same group of self-locking piece (12) respectively.
7. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the self-locking block (12) is made of magnetic materials, the magnetic pole is an N pole, the N pole is displayed when the electromagnetic box (91) is electrified, and the polarity is not displayed when the electromagnetic box is not electrified; the electromagnetic box (91) is respectively and electrically connected with the first movable contact (94) and the first fixed contact (95), and the second movable contact (103) and the second fixed contact (102) are respectively and electrically connected with the first movable contact (94) and the first fixed contact (95).
8. The winch stall self-locking structure based on the electromagnetic variant principle as claimed in claim 1, wherein: the first movable contact (94) and the first fixed contact (95) are both provided with current passing, the first fixed contact (95) is arranged to be an electromagnet, and the first movable contact (94) is arranged to be a conductive material capable of being attracted by a magnetic pole; the movable contact II (103) and the fixed contact II (102) are respectively electrically connected with the current transformer (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520725.5A CN112694026A (en) | 2020-12-21 | 2020-12-21 | Winch stall self-locking structure utilizing electromagnetic variant principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520725.5A CN112694026A (en) | 2020-12-21 | 2020-12-21 | Winch stall self-locking structure utilizing electromagnetic variant principle |
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| CN112694026A true CN112694026A (en) | 2021-04-23 |
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| CN202011520725.5A Pending CN112694026A (en) | 2020-12-21 | 2020-12-21 | Winch stall self-locking structure utilizing electromagnetic variant principle |
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| US5992582A (en) * | 1994-04-19 | 1999-11-30 | Lou; Zheng | Electrorheological rotary pure-shear damping devices |
| JP2012035967A (en) * | 2010-08-06 | 2012-02-23 | Mitsubishi Electric Corp | Brake device |
| CN204298007U (en) * | 2014-11-19 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of two-way controlled holdback |
| CN106999737A (en) * | 2014-12-04 | 2017-08-01 | 涡流有限合伙公司 | Locking activation between element |
| CN209702170U (en) * | 2019-03-20 | 2019-11-29 | 宝鸡巨菱钻采设备有限责任公司 | A kind of oil-well rig AC frequency modulation electric hoister |
| CN111483936A (en) * | 2020-04-17 | 2020-08-04 | 杭州操订科技有限公司 | Utilize architectural rolling equipment stall self-lock device of electrorheological fluids principle |
| CN111498721A (en) * | 2020-04-16 | 2020-08-07 | 杭州藏储科技有限公司 | Industrial winch assembly capable of stalling and self-locking by utilizing centrifugal action |
| CN112027789A (en) * | 2020-09-14 | 2020-12-04 | 南京广庆网络科技有限公司 | Net twine is winder at uniform velocity based on intelligence manufacturing technology |
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2020
- 2020-12-21 CN CN202011520725.5A patent/CN112694026A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5992582A (en) * | 1994-04-19 | 1999-11-30 | Lou; Zheng | Electrorheological rotary pure-shear damping devices |
| JP2012035967A (en) * | 2010-08-06 | 2012-02-23 | Mitsubishi Electric Corp | Brake device |
| CN204298007U (en) * | 2014-11-19 | 2015-04-29 | 武汉钢铁(集团)公司 | A kind of two-way controlled holdback |
| CN106999737A (en) * | 2014-12-04 | 2017-08-01 | 涡流有限合伙公司 | Locking activation between element |
| CN209702170U (en) * | 2019-03-20 | 2019-11-29 | 宝鸡巨菱钻采设备有限责任公司 | A kind of oil-well rig AC frequency modulation electric hoister |
| CN111498721A (en) * | 2020-04-16 | 2020-08-07 | 杭州藏储科技有限公司 | Industrial winch assembly capable of stalling and self-locking by utilizing centrifugal action |
| CN111483936A (en) * | 2020-04-17 | 2020-08-04 | 杭州操订科技有限公司 | Utilize architectural rolling equipment stall self-lock device of electrorheological fluids principle |
| CN112027789A (en) * | 2020-09-14 | 2020-12-04 | 南京广庆网络科技有限公司 | Net twine is winder at uniform velocity based on intelligence manufacturing technology |
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