CN110240079A - A kind of speed reducer security device and the speed reducer with the device - Google Patents
A kind of speed reducer security device and the speed reducer with the device Download PDFInfo
- Publication number
- CN110240079A CN110240079A CN201910662541.3A CN201910662541A CN110240079A CN 110240079 A CN110240079 A CN 110240079A CN 201910662541 A CN201910662541 A CN 201910662541A CN 110240079 A CN110240079 A CN 110240079A
- Authority
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- China
- Prior art keywords
- speed reducer
- piston rod
- cylinder
- gas
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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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
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
-
- 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
- B66D1/54—Safety gear
-
- 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
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
-
- 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
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/006—Positive locking brakes
-
- 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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/08—Seals, e.g. piston seals
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/16—Devices for bleeding or filling
Abstract
The invention discloses a kind of speed reducer security device and with the speed reducer of the device, multiple brackets are equipped at intervals in the roller axial face of speed reducer；Cylinder is provided below in the worm type of reduction gearing of speed reducer, and the cylinder is connected by gas-guide tube with air accumulator, and solenoid valve is serially connected in gas-guide tube；Encoder is installed on the output shaft of speed reducer, when value of the encoder beyond setting, the signal of roller stall is passed to host computer by encoder, host computer is instructed to solenoid valve, solenoid valve is opened rapidly, air accumulator mesohigh gas is input in cylinder, the piston rod of pusher cylinder moves withstand on the bracket of roller outward, to achieve the purpose that roller is prevented to rotate.Present invention effect is speed reducer in transmission device failure, and the moment that can effectively prevent weight falls.
Description
Technical field
The present invention relates to speed reducer fields, and in particular to a kind of speed reducer security device.
Background technique
Worm-gear speed reducer have it is compact-sized, transmission ratio is big, and the tooth logarithm of engagement is more, and registration is big, stable drive,
Noise is small, and when the lead angle of worm screw is less than the equivalent friction angle of mesh tooth face, worm-drive has self-locking performance.So worm gear snail
Bar transmission has been widely used in each type games and actuating unit.
But there is also disadvantages for Worm Wheel System: flank of tooth sliding speed is big when transmission, and fretting wear is serious, transmission efficiency
Low, when transmission has self-locking performance, efficiency is lower than 0.5, therefore should not be used in powerful transmission.Worm gear is lubricating unsmooth feelings
Condition can accelerate its tooth surface abrasion, reduce its service life.
Worm screw worm-drive, worm gear is as output end, once worm gear goes wrong, it will lead to entire deceleration less loss speed,
So as to cause the generation of accident.Present speed reducer is all largely to increase brake apparatus in motor output end.But for one
Require relatively high occasion a bit, for example nuclear power station takes off lid, charging crane, manned cable car and elevator etc., needs to carry out end
End braking, also makes slow-speed shaft brake.Low speed shaft brake device is mainly hydraulic jaw type braking at present, and there are also a small amount of hydraulic belts
Braking.But the two brake apparatus volume itself is bigger, and if the no other hydraulic devices of vehicle, it is also necessary to match
Standby hydraulic power unit.
Long using the hydraulic reaction time, from feedback is detected again to execution, only hydraulic system establishes enough pressures
Power requires the several seconds.And weight does the movement of falling object under stall condition, each second, about 5 meters of dropping distance, the pressure such as did not had also
It sets up, the weight of lifting just lands.The shorter operating condition of this unsuitable lifting distance.
Summary of the invention
Insufficient according to prior art, the present invention provides a kind of speed reducer security device, and what is mainly solved is exactly limited
Space in (especially vehicle-mounted gantry etc), not external hydraulic power unit situation carries out slow-speed shaft fast braking
Problem.
The present invention is realized by following technical scheme:
A kind of speed reducer security device is equipped at intervals with multiple brackets in the roller axial face of speed reducer；In the worm gear of speed reducer
Cylinder is provided below in worm reducer, and the cylinder is connected by gas-guide tube with air accumulator, and electromagnetism is serially connected in gas-guide tube
Valve；Encoder is installed on the output shaft of speed reducer, when value of the encoder beyond setting, encoder is by the signal of roller stall
Host computer is passed to, host computer is instructed to solenoid valve, and solenoid valve is opened rapidly, and air accumulator mesohigh gas is input to cylinder
Interior, the piston rod of pusher cylinder moves withstand on the bracket of roller outward, to achieve the purpose that roller is prevented to rotate.
Further, the quantity of cylinder is at least two, and each cylinder passes through gas-guide tube and is connected with air accumulator, every
Solenoid valve is serially connected in one gas-guide tube.
Further, the cylinder includes cylinder barrel, piston rod I and piston rod II；In two axis of the cylinder barrel
An end cap is respectively provided on face, the piston rod I and piston rod II are mounted in cylinder barrel, and piston rod I and piston rod
II can be pierced by from end cap；Inlet suction port, II inoperative of piston rod I and piston rod are equipped at the middle part of the cylinder barrel
When, there are scheduled spaces between the two, can smoothly enter into cylinder convenient for high pressure gas；The end of the piston rod I and piston rod II
A boss is stretched out in portion to be prevented from popping up from cylinder barrel to be against at end cap.
Further, the boss of the piston rod I and piston rod II is equipped with a circle groove, and sealing is equipped in the groove
Circle.
Further, the end cap is equipped with multiple gas vents, to reduce exhaust resistance, improves piston rod movement speed.
Further, the end cap is equipped with piston rod baffle, which uses fragile material, in pushing away for piston rod
Under dynamic, flash disruption falls.
Further, piston rod baffle there are two being all provided on each end cap, and two piston rod baffles are distributed at 180 °.
Further, the bracket on the roller is set as the circular shape more bigger than the diameter of piston rod, so that the two is connecing
When touching, contact stress is much smaller than the contact stress of cylinder and plane.
It further, further include battery, the battery is connected by passive switch with pneumatic circuit, passive when power-off
Switch closes automatically, and battery starts to power；The host computer is powered by ups power, and under power blackout situation, host computer still is able to send out
Signal realizes the connection of gas circuit to solenoid valve.
A kind of speed reducer, including worm type of reduction gearing and two double little tooth difference speed reducers, further include above-mentioned speed reducer
Safety device, in speed reducer when transmission device fails, the moment that can effectively prevent weight falls.
It is speed reducer in transmission device failure the invention has the advantages that: present invention effect, can effectively prevent the wink of weight
Between fall.From feedback is detected again to execution, speed will be fastly；Space hold is smaller；Pipeline cabling is flexible, and will not influence it
Its component.
Detailed description of the invention
Fig. 1 is speed reducer security device structure chart of the invention；
Fig. 2 is leaf stomatal resistance figure of the invention；
Fig. 3 is cylinder cross-sectional view of the invention；
Fig. 4 is cylinder side view of the invention；
Fig. 5 is roller frame figure of the invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
As shown in Figure 1, the present invention is mainly based upon this worm type of reduction gearing and two little tooth difference speed reducers, (planet subtracts
Fast device) composition lose-lose rope stretching speed reducer on the basis of, increase a set of safety device.When worm gear failure, driving force becomes
At the sum of the self weight of weight and its inertia force, at this time weight is similar to the movement of falling object.The revolving speed of roller 4 is increased, and
By certain ratio that drives up, it is transmitted on the output shaft of former worm gear, the encoder 8 on output shaft detects that its revolving speed exceeds
Setting value will issue the instruction of alarm to host computer, after host computer is connected to instruction, issue a command to the electromagnetism in gas circuit rapidly
Valve, solenoid valve moment open, and the high pressure gas in air accumulator 7 is discharged into cylinder 5, piston rod is pushed to move outward, thus
Achieve the purpose that roller 4 is prevented to rotate.Specific embodiment is as follows:
Multiple brackets 3 are equipped at intervals in 4 axial face of roller of speed reducer；It is set below the worm type of reduction gearing 2 of speed reducer
It is equipped with cylinder 5, and the cylinder 5 is connected by gas-guide tube 6 with air accumulator 7, is serially connected with solenoid valve in gas-guide tube 6；In speed reducer
Output shaft on encoder 8 is installed, when value of the encoder 8 beyond setting, encoder 8 passes to the signal of 4 stall of roller
Host computer, host computer are instructed to solenoid valve, and solenoid valve is opened rapidly, 7 mesohigh gas of air accumulator is input in cylinder 5, is pushed away
The piston rod of cylinder 5 of taking offence moves withstand on the bracket 3 of roller 4 outward, to achieve the purpose that roller 4 is prevented to rotate.
As shown in Figure 2, it is contemplated that a cylinder piston rod is possible on the bracket 3 directly pushed up to roller 4 in action process,
It is (i.e. cylinder I, cylinder II in Fig. 2) in parallel using two groups of cylinders to lose the effect for preventing roller 4 from rotating, i.e., in roller 4
In the case where stall, centainly there is the piston rod of one group of cylinder 5 that can prevent the rotation of roller 4, to effectively contain hoisting object
Whereabouts.Each cylinder 5 is connected with a solenoid valve, and the on-off of the gas circuit is controlled by solenoid valve, realizes gas with this
Cylinder 5 stretches.
It should be noted that cylinder 5 is single-acting cylinder, only in stall, gas push piston rod movement is to two sides
Movement, the in this way air-tightness without being concerned about cylinder.
Above-mentioned one preferred embodiment of cylinder is given below:
As shown in Figure 3, Figure 4, cylinder 5 includes cylinder barrel 5.1, piston rod I 5.2 and piston rod II 5.4；In cylinder barrel 5.1
Two axial faces on be respectively provided with an end cap 5.5, piston rod I 5.2 and piston rod II 5.4 are mounted in cylinder barrel 5.1, and
Piston rod I 5.2 and piston rod II 5.4 can be pierced by from end cap 5.5；Inlet suction port is equipped at the middle part of cylinder barrel 5.1
5.7, when II 5.4 inoperative of piston rod I 5.2 and piston rod, between the two there are scheduled space, convenient for high pressure gas smoothly into
Enter cylinder 5；A boss is stretched out in the end of piston rod I 5.2 and piston rod II 5.4 to be prevented to be against at end cap 5.5 from gas
It is popped up in cylinder cylinder barrel 5.1.
It should be noted that end cap 5.5 is fixed on cylinder barrel 5.1 by multiple head bolts 5.6.
End cap 5.5 is equipped with multiple gas vents 5.10, to reduce exhaust resistance, improves piston rod movement speed.
The boss of piston rod I 5.2 and piston rod II 5.4 is equipped with a circle groove, and sealing ring 5.3 is equipped in the groove.
End cap 5.5 is equipped with piston rod baffle 5.8, which is fixed on by piston rod parting of baffle bolt 5.9
On end cap 5.5, which uses fragile material, and under the promotion of piston rod, flash disruption falls.
Further scheme: piston rod baffle 5.8 there are two being all provided on each end cap 5.5, and two piston rod baffles
5.8 are distributed at 180 °.
As shown in figure 5, to improve the local pressure of structure, when 4 stall of roller, cannot because of itself intensity it is insufficient, and
Secondary destruction occurs, the bracket 3 of roller 4 is made into the circular shape more bigger than the diameter of cylinder piston rod, so that the two is connecing
When touching, contact stress is much smaller than the contact stress of cylinder and plane.
The further preferred embodiment of above-described embodiment is given below:
When worm gear fails in order to prevent, entire electric-control system power-off, Pneumatic control circuit is additionally arranged battery.Battery setting
Undervoltage protection device, startup self-detection, brownout, system power supply system are responsible for charging to it.In addition in entire pneumatic circuit
Provided with passive switch, when power-off, passive switch closes automatically, and battery starts to power.Host computer is powered by ups power, is broken
In electric situation, host computer can still signal to solenoid valve, realize the connection of gas circuit.It is simultaneously the reliability for ensuring gas circuit, matches
It for two solenoid electric valves, is connected in parallel in pipeline, it is ensured that in the case where obtaining electric, at least one valve can be beaten solenoid electric valve
It opens.Same encoder is also provided with two, one of them is also used as Safety Redundancy to design.
To sum up, in the case where worm gear damages, output shaft can be held tightly, roller can also be held tightly to prevent, directly held tightly
The advantage of output shaft is that torque is small, but it is most direct for directly preventing roller.Holding output shaft tightly has electromagnetic brake, but accounts for
Space is bigger, so not being able to satisfy requirement spatially.
Common executing agency have it is electronic, hydraulic, three kinds of air pressure.What this technical solution was mainly examined is reaction and executes
Speed.So this overall evaluation of a technical project considers that selection is pneumatic.Electronic and hydraulic operation is not enough rapidly.To improve medium
Stability, we select the inert gas as nitrogen.It is additionally contemplates that pneumatic the space occupied is small simultaneously, pipeline cabling spirit
It is living, and will not influence other components.
There are also many safeguard measures for this technical solution, such as: just rolling stand is arrived on top for system cut-off, piston rod pop-up
Upper, solenoid valve crucial moment does not open, encoder fails etc..It is backed up in system.
The present invention also provides a kind of speed reducers, including the double few teeth of the worm type of reduction gearing 2 being mounted on support 9 and two
Difference speed reducer 1 further includes above-mentioned speed reducer security device, in speed reducer when transmission device fails, can effectively prevent weight
Moment fall.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of speed reducer security device, it is characterised in that: be equipped at intervals with multiple brackets in the roller axial face of speed reducer；
Cylinder is provided below in the worm type of reduction gearing of speed reducer, and the cylinder is connected by gas-guide tube with air accumulator,
Solenoid valve is serially connected in gas-guide tube；
Encoder is installed on the output shaft of speed reducer, when value of the encoder beyond setting, encoder is by the letter of roller stall
Host computer number is passed to, host computer gives solenoid valve instruction, and solenoid valve is opened rapidly, and air accumulator mesohigh gas is input to cylinder
Interior, the piston rod of pusher cylinder moves withstand on the bracket of roller outward, to achieve the purpose that roller is prevented to rotate.
2. a kind of speed reducer security device according to claim 1, it is characterised in that: the quantity of cylinder is at least two,
And each cylinder passes through gas-guide tube and is connected with air accumulator, is serially connected with solenoid valve in each gas-guide tube.
3. a kind of speed reducer security device according to claim 1, it is characterised in that: the cylinder include cylinder barrel,
Piston rod I and piston rod II；
An end cap is respectively provided in two axial faces of the cylinder barrel, the piston rod I and piston rod II are mounted on gas
In cylinder cylinder barrel, and piston rod I and piston rod II can be pierced by from end cap；
It is equipped with inlet suction port at the middle part of the cylinder barrel, when II inoperative of piston rod I and piston rod, there are pre- between the two
Fixed space can smoothly enter into cylinder convenient for high pressure gas；
A boss is stretched out in the end of the piston rod I and piston rod II to be prevented from being hit by a bullet from cylinder barrel to be against at end cap
Out.
4. a kind of speed reducer security device according to claim 3, it is characterised in that: the piston rod I and piston rod II
Boss be equipped with one circle groove, in the groove be equipped with sealing ring.
5. a kind of speed reducer security device according to claim 3, it is characterised in that: the end cap is equipped with multiple exhausts
Piston rod movement speed is improved to reduce exhaust resistance in hole.
6. a kind of speed reducer security device according to claim 3, it is characterised in that: the end cap is equipped with piston pole spacing
Plate, the piston rod baffle use fragile material, and under the promotion of piston rod, flash disruption falls.
7. a kind of speed reducer security device according to claim 6, it is characterised in that: there are two being all provided on each end cap
Piston rod baffle, and two piston rod baffles are distributed at 180 °.
8. a kind of speed reducer security device according to claim 1, it is characterised in that: the bracket on the roller is set as comparing
The bigger circular shape of the diameter of piston rod, so that the two is at the time of contact, contact stress is answered much smaller than contact of the cylinder with plane
Power.
9. a kind of speed reducer security device according to claim 1, it is characterised in that: it further include battery, the electric power storage
Pond is connected by passive switch with pneumatic circuit, and when power-off, passive switch closes automatically, and battery starts to power；
The host computer is powered by ups power, and under power blackout situation, host computer still is able to signal to solenoid valve, realizes gas circuit
Connection.
10. a kind of speed reducer, including worm type of reduction gearing and two double little tooth difference speed reducers, it is characterised in that: further include power
Benefit requires 1 to 9 described in any item speed reducer security devices, in speed reducer when transmission device fails, can effectively prevent weight
Moment fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662541.3A CN110240079A (en) | 2019-07-22 | 2019-07-22 | A kind of speed reducer security device and the speed reducer with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662541.3A CN110240079A (en) | 2019-07-22 | 2019-07-22 | A kind of speed reducer security device and the speed reducer with the device |
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| Publication Number | Publication Date |
|---|---|
| CN110240079A true CN110240079A (en) | 2019-09-17 |
Family
ID=67893129
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|---|---|---|---|
| CN201910662541.3A Pending CN110240079A (en) | 2019-07-22 | 2019-07-22 | A kind of speed reducer security device and the speed reducer with the device |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8302434A (en) * | 1983-05-06 | 1984-12-11 | Equipamentos Villares S A | HYDRAULIC WINCH |
| CN102874707A (en) * | 2012-09-27 | 2013-01-16 | 太原重工股份有限公司 | Hoisting mechanism and inactive safety braking system |
| CN205820760U (en) * | 2015-11-25 | 2016-12-21 | 宁波华翔东方电力机具有限公司 | A kind of steel wire rope winder |
| CN206336956U (en) * | 2016-12-30 | 2017-07-18 | 青岛港国际股份有限公司 | A kind of crane amplitude variation emergency braking system and crane |
| CN107777600A (en) * | 2017-10-12 | 2018-03-09 | 无锡凹凸自动化科技有限公司 | A kind of safe hauling machine |
| CN207451487U (en) * | 2017-10-27 | 2018-06-05 | 河南宾康重工机械有限公司 | Setting machine hanger device |
| CN208120650U (en) * | 2018-02-27 | 2018-11-20 | 中石化石油工程技术服务有限公司 | A kind of petroleum, which is repaired, bores working rig emergency braking system |
| CN210236952U (en) * | 2019-07-22 | 2020-04-03 | 徐州川一工程机械有限公司 | Speed reducer safety device and speed reducer with same |
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