CN208150847U - A kind of retarder with load limitation device - Google Patents
A kind of retarder with load limitation device Download PDFInfo
- Publication number
- CN208150847U CN208150847U CN201820496889.0U CN201820496889U CN208150847U CN 208150847 U CN208150847 U CN 208150847U CN 201820496889 U CN201820496889 U CN 201820496889U CN 208150847 U CN208150847 U CN 208150847U
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- support base
- load limitation
- spring leaf
- primary
- limitation device
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Abstract
The utility model discloses a kind of retarder with load limitation device, including shell, deceleration device and load limitation device, shell is fixedly connected with the flange at both ends, and deceleration device and load limitation device are located in shell；Deceleration device is three stage planetary reduction device, and input shaft is engaged with primary planet wheel, and output shaft is structure as a whole with final stage planet carrier；Load limitation device includes spring leaf and friction plate, spring leaf is located in the groove on support base, spacer is provided between the bottom end and support base of spring leaf, the bolt pair of adjustment spacer is provided on support base, platen is connected with by pin in the groove of support base, friction plate is provided between platen and the side of primary annulus, on the side that friction plate is pressed on primary annulus under the action of spring leaf elastic force by platen.The retarder with load limitation device of the utility model using the above structure is able to solve unlimited load hydraulic cucurbit due to the bring security risk that overloads, can substantially reduce the incidence of safety accident.
Description
Technical field
The utility model relates to hydraulic hoist retarder technical fields, more particularly, to a kind of deceleration with load limitation device
Device.
Background technique
Hoist crane is the important component in lifting equipment, and wherein cucurbit includes chain block, electric block, air hoist
And hydraulic hoist.Hydraulic hoist is driven by oil motor, and ship, coal mine, metallurgy, engineering machinery, ocean are widely used in
Engineering etc..Load limitation device promoted cucurbit in play an important role, load limitation device can prevent hydraulic hoist overload when still
It can so work, hydraulic hoist overloads work in the presence of very big security risk, not only shortens the service life of equipment, Er Qieyi
Cause safety accident.It is in present hydraulic hoist to be not provided with load limitation device more, there is very big security risk.It is adopted on electric block
Load limit protective device is overload-release clutch, and it is low that clutch configuration size is big, limit for tonnage is worth unstable and service life.
Utility model content
The purpose of the utility model is to provide a kind of retarders with load limitation device, solve unlimited load hydraulic cucurbit and exist
Larger security risk easily causes the problem of safety accident.
To achieve the above object, the utility model provides a kind of retarder with load limitation device, including shell, deceleration
Device and load limitation device, the shell are fixedly connected with the flange at both ends, and the deceleration device and the load limitation device are located at institute
It states in shell；The deceleration device is Multi-stage planetary speed reducing device, and input shaft is engaged with primary planet wheel, output shaft and final stage row
Carrier is structure as a whole, and is rotatablely connected between final stage planet carrier and flange by bearing；The load limitation device include spring leaf and
Friction plate, the spring leaf are located in the groove on support base, are provided between the bottom end of the spring leaf and the support base
Spacer is provided with the bolt pair of adjustment spacer on the support base, is connected in the groove of the support base by pin
Platen, the spring leaf are located in the space that the platen and the support base are formed, and one end of the spring leaf is resisted against pressure
On disk, the friction plate is provided between the platen and the side of primary annulus, the two sides of primary annulus are provided with described
Friction plate, on the side that friction plate is pressed on primary annulus under the action of spring leaf elastic force by platen, primary annulus and shell
Between be arranged rack gear set.
Preferably, it is stifled that nylon is provided between the support base and the input shaft, the nylon blocks up as step type, nylon
Stifled one end is between support base and primary planet wheel.
Preferably, it is fixedly connected between the support base and the shell by flat key, is set between the flat key and flange
It is equipped with retaining ring.
Preferably, the spring leaf is disc spring, and 4 disc springs are provided in the support base, and 4 disc springs use concatenated side
Formula connection.
Preferably, the primary planet wheel shaft of the deceleration device is fixed on primary planet carrier, and primary planet carrier is as two
The sun gear of grade deceleration part, is connected between primary planet carrier and input shaft and shell by bearing；Secondary planet wheel shaft is fixed
On secondary planet frame, sun gear of the secondary planet frame as final reduction part, between secondary planet frame and primary planet carrier
It is connected by bearing；Final stage planet wheel spindle is fixed on final stage planet carrier, and final stage planet carrier and secondary planet frame are connected by bearing
It connects.
A kind of retarder with load limitation device described in the utility model, retarder are multistage planet retarder, are slowed down
Than big, it is capable of increasing the torque of motor, improves bearing capacity.Primary speed-down part is provided with load limitation device, platen is in spring
Friction plate is pressed on primary annulus under the pressure of piece, primary annulus skids when overload, and retarder cannot normally transmit torque,
Play the role of overload protection.The pretightning force of primary annulus can be adjusted by bolt pair.With the hydraulic of overload protection
Cucurbit can prevent its work that overloads, and improve the safety of hydraulic hoist work.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the retarder embodiment with load limitation device of the utility model；
Appended drawing reference
1, input shaft；2, flange；3, shell；4, primary planet wheel shaft；5, secondary planet wheel shaft；6, final stage planet wheel spindle；
7, support base；8, platen；9, flat key；10, spring leaf；11, gear ring set；12, primary annulus；13, friction plate；14, spacer；
15, bolt pair；16, pin；17, nylon is stifled；18, screw；19, bearing；20, final stage planet carrier；21, output shaft.
Specific embodiment
Embodiment
Fig. 1 is a kind of structural schematic diagram of the retarder embodiment with load limitation device of the utility model.As shown in Figure 1,
A kind of retarder with load limitation device, including shell 3, deceleration device and load limitation device, shell 3 and the flange 2 at both ends pass through
Screw 18 is fixedly connected, and deceleration device and load limitation device are located in shell 3.
Deceleration device is three stage planetary reduction device, and the input shaft 1 for connecting motor is engaged with primary planet wheel, by motor
Torque passes to deceleration device through input shaft 1.Primary planet wheel is between input shaft 1 and primary annulus 12, primary annulus 12
Rack gear is set between shell 3 and covers 11.Primary planet wheel shaft 4 is fixed on primary planet carrier, primary planet carrier conduct simultaneously
The sun gear of double reduction part uses, and is connected by bearing 19 between primary planet carrier and input shaft 1 and shell 3.Second level
Planet wheel spindle 5 is fixed on secondary planet frame, sun gear of the secondary planet frame as final reduction part, secondary planet frame and one
It is connected between grade planet carrier by bearing 19.Final stage planet wheel spindle 6 is fixed on final stage planet carrier 20, final stage planet carrier 20 and two
Grade planet carrier and flange 2 are connected by bearing 19.It is connected by bearing 19 between planetary gear and planet wheel spindle.Final stage planet
Frame 20 is structure as a whole with output shaft 21, and the torque of motor exports after three-stage planetary gear slows down and passes to executing agency.
Using compact-sized third-level planetary reduction gear, divides three-level to slow down and increase the torque of motor, reduction ratio 1:83, it can be improved and hold
Loading capability.
Load limitation device includes spring leaf 10 and friction plate 13, and spring leaf 10 is located in the groove on support base 7.Spring leaf 10
7 groove of bottom end and support base bottom surface between be provided with spacer 14, be provided on support base 7 adjustment spacer 14 bolt
Pair 15.The height of the adjustable spacer 14 of bolt pair 15 is rotated, so as to adjust the pressure of spring leaf 10.Spring leaf 10 selects dish
Spring, 4 disc springs are connected using concatenated mode and are placed in the groove of support base 7.One end of platen 8 is also plugged on support base 7
Groove in, and connected between platen 8 and support base 7 by pin 16.Platen 8 is slidably connected with support base 7, and pin 16 is right
The movement of platen 8 has guiding role.Spring leaf 10 is located at platen 8 and the groove of support base 7 is formed in space, spring leaf 10
Top is resisted against on platen 8.Friction plate 13, the two sides of primary annulus 12 are provided between platen 8 and the side of primary annulus 12
It is each provided with a friction plate 13, friction plate 13 is copper-base friction plate, and platen 8 is under the action of 10 pressure of spring leaf by friction plate
13 are pressed on the side of primary annulus 12.Under rated load, primary annulus 12 rubs copper based powder metallurgy friction wafer 13
Wiping can be fixed under power, uses as fixed tooth circle.When load is more than setting load, the carrying torsion of primary annulus 12 is greater than
Setting value, primary annulus 12 can overcome frictional force to move, and primary annulus 12 starts to skid, and retarder cannot normally transmit torsion
Square, so that whole equipment system be made to play the role of overload protection.Disc spring can ensure that the pretightning force of primary annulus 12 is always
In elastic range.
Nylon stifled 17 is provided between support base 7 and input shaft 1, nylon stifled 17 is step type, one end position of nylon stifled 17
Between support base 7 and primary planet wheel.Be fixedly connected between support base 7 and shell 3 by flat key 9, flat key 9 and flange 2 it
Between be provided with retaining ring.Sealing ring is additionally provided between support base 7 and shell 3.
Deceleration device in the present embodiment may be level-one or other Multi-stage planetary speed reducing devices.
Therefore, the retarder with load limitation device of the utility model using the above structure, is able to solve unlimited load hydraulic
There is larger security risk, easily cause safety accident in cucurbit.
It is specific embodiment of the present utility model above, but the protection scope of the utility model should not be limited to thoses mentioned above.Appoint
What those skilled in the art is in the technical scope disclosed by the utility model, and any changes or substitutions that can be easily thought of,
It should be covered within the scope of the utility model, therefore the protection scope of the utility model should be limited with claims
Subject to fixed protection scope.
Claims (5)
1. a kind of retarder with load limitation device, it is characterised in that：Including shell, deceleration device and load limitation device, the shell
Body is fixedly connected with the flange at both ends, and the deceleration device and the load limitation device are located in the shell；The deceleration device
For Multi-stage planetary speed reducing device, input shaft is engaged with primary planet wheel, and output shaft is structure as a whole with final stage planet carrier, final stage row
It is rotatablely connected between carrier and flange by bearing；The load limitation device includes spring leaf and friction plate, and the spring leaf is located at
In groove on support base, it is provided with spacer between the bottom end of the spring leaf and the support base, is set on the support base
It is equipped with the bolt pair of adjustment spacer, the groove of the support base is interior to be connected with platen by pin, and the spring leaf is located at institute
It states in the space that platen and the support base are formed, one end of the spring leaf is resisted against on platen, the platen and level-one tooth
The friction plate is provided between the side of circle, the two sides of primary annulus are provided with the friction plate, and platen is in spring leaf bullet
Friction plate is pressed on the two sides of primary annulus under the action of power, rack gear set is set between primary annulus and shell.
2. a kind of retarder with load limitation device according to claim 1, it is characterised in that：The support base with it is described
It is stifled that nylon is provided between input shaft, the nylon blocks up as step type, and one end that nylon blocks up is located at support base and primary planet wheel
Between.
3. a kind of retarder with load limitation device according to claim 1, it is characterised in that：The support base with it is described
It is fixedly connected between shell by flat key, is provided with retaining ring between the flat key and flange.
4. a kind of retarder with load limitation device according to claim 1, it is characterised in that：The spring leaf is dish
Spring, 4 disc springs are provided in the support base, and 4 disc springs are connected using concatenated mode.
5. a kind of retarder with load limitation device according to claim 1, it is characterised in that：The one of the deceleration device
Grade planet wheel spindle be fixed on primary planet carrier, sun gear of the primary planet carrier as double reduction part, primary planet carrier and
It is connected between input shaft and shell by bearing；Secondary planet wheel shaft is fixed on secondary planet frame, and secondary planet frame is as end
The sun gear of grade deceleration part, is connected between secondary planet frame and primary planet carrier by bearing；Final stage planet wheel spindle is fixed on
On final stage planet carrier, final stage planet carrier is connect with secondary planet frame by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820496889.0U CN208150847U (en) | 2018-04-09 | 2018-04-09 | A kind of retarder with load limitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820496889.0U CN208150847U (en) | 2018-04-09 | 2018-04-09 | A kind of retarder with load limitation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208150847U true CN208150847U (en) | 2018-11-27 |
Family
ID=64381683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820496889.0U Active CN208150847U (en) | 2018-04-09 | 2018-04-09 | A kind of retarder with load limitation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208150847U (en) |
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2018
- 2018-04-09 CN CN201820496889.0U patent/CN208150847U/en active Active
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