CN208669923U - A kind of hydraulic damper - Google Patents
A kind of hydraulic damper Download PDFInfo
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- CN208669923U CN208669923U CN201821348123.4U CN201821348123U CN208669923U CN 208669923 U CN208669923 U CN 208669923U CN 201821348123 U CN201821348123 U CN 201821348123U CN 208669923 U CN208669923 U CN 208669923U
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- oil cylinder
- hydraulic damper
- scribing
- detecting device
- position detecting
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Abstract
The utility model provides a kind of hydraulic damper, comprising: piston barrel, oil cylinder, scribing and position detecting device, oil cylinder are sheathed in piston barrel, and can be moved back and forth in piston barrel, and the bottom wall of oil cylinder is the one end stretched out outside piston barrel；Scribing is set on piston barrel；Position detecting device is set on oil cylinder, and it can be with oil cylinder movement, instruction device is connected on position detecting device, scribing is contacted with position detecting device, it the surface of position detecting device can be mobile relative to scribing, when the first position of position detecting device or the second position and scribing contact, instruction device issues corresponding indication signal.In the utility model embodiment, when the normal thermal expansion or compression displacement for detecting pipeline and equipment are more than the carrying range of hydraulic damper, instruction device issues corresponding indication signal, so that the thermal expansion of production equipment or compression displacement can be found by staff quickly when being more than the carrying range of hydraulic damper.
Description
Technical field
The utility model relates to damper technique field, in particular to a kind of hydraulic damper.
Background technique
In actual production, in order to protect production equipment, damper mechanism can be generally installed in production equipment, can avoid
The vibration that production equipment generates is damaged caused by production equipment.Such as: the main pipe in nuclear power station, in nuclear island factory building
With hydraulic damper is generally fitted on important equipment, the normal thermal expansion or compressed-bit of pipeline and equipment can be compensated
It moves.In practice, if the normal thermal expansion or compression displacement of pipeline and equipment are more than the carrying range of hydraulic damper,
Then easily lead to hydraulic damper damage, and due in nuclear power station hydraulic damper it is large number of, cause production equipment heat it is swollen
Swollen or compression displacement is not easy to be found when being more than the carrying range of hydraulic damper.
Utility model content
The utility model embodiment is designed to provide a kind of hydraulic damper, solve production equipment thermal expansion or
Person's compression displacement is not easy the problem of being found when being more than the carrying range of hydraulic damper.
In order to achieve the above object, the utility model embodiment provides a kind of hydraulic damper, comprising:
Piston barrel；
Oil cylinder is sheathed in the piston barrel, and can be moved back and forth in the piston barrel, the bottom of the oil cylinder
Wall is the one end stretched out outside the piston barrel；
Scribing, the scribing are set on the piston barrel；
And position detecting device, the position detecting device are set on the oil cylinder, and can be moved with the oil cylinder
It is dynamic, instruction device is connected on the position detecting device, the scribing is contacted with the position detecting device, the position inspection
The surface for surveying device can be mobile relative to the scribing, when the first position of the position detecting device or the second position and institute
When stating scribing contact, the instruction device issues corresponding indication signal；
Wherein, the first position at a distance from the bottom wall of the oil cylinder be the first pre-determined distance, the second position with
The distance of the bottom wall of the oil cylinder is the second pre-determined distance, and first pre-determined distance is less than second pre-determined distance.
Optionally, control display device is also connected on the position detecting device, the control display device is for showing
Show the state of the hydraulic damper.
Optionally, the position detecting device includes that the first on-off type touch-control limit switch and the second on-off type touch-control limit
Switch, the scribing between the first on-off type touch-control limit switch and the second on-off type touch-control limit switch,
The first on-off type touch-control limit switch is set to the first position, and the second on-off type touch-control limit switch is set to
The second position.
Optionally, the position detecting device is resistance sensor, and the scribing is resistance scribing.
Optionally, the hydraulic damper further include:
Regulating part, one end of the regulating part are fixedly installed on the bottom wall of the oil cylinder, the other end of the regulating part
Surface be provided with external screw thread；
Connector is provided with internal screw thread on the connector；
And locking nut, the locking nut are set between the regulating part and the connector, the locking screw
Internal screw thread and external screw thread, the external thread bolt connection of the internal screw thread of the locking nut and the regulating part, the lock are provided on mother
The tight external screw thread of nut and the internal screw thread of connector are spirally connected.
Optionally, the oil cylinder surface is provided with bar shaped graduated scale, includes zero graduation line on the bar shaped graduated scale, and institute
State the middle position that zero graduation line is set to the bar shaped graduated scale.
Optionally, the bar shaped graduated scale is in arrowhead form.
Optionally, at least one locking device is removably provided on the hydraulic damper, the locking device is used
In the fixation oil cylinder and the piston barrel.
Optionally, locating slot is provided on the oil cylinder, the locking device includes: clamping screw, the clamping screw
Across the piston barrel, and it is embedded in the locating slot.
Optionally, the locating slot and the zero graduation line are respectively positioned on preset direction, the preset direction and the oil
The direction of motion of cylinder is vertical.
A technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
Hydraulic damper provided by the embodiment of the utility model includes: piston barrel, oil cylinder, scribing and position detection dress
It sets, position detecting device is set on oil cylinder, and can be connected with instruction device on position detecting device with oil cylinder movement, is drawn
Piece is contacted with position detecting device, and the surface of position detecting device can be mobile relative to scribing, when the of position detecting device
When one position or the second position and scribing contact, instruction device issues corresponding indication signal, in this way, when detecting pipeline and setting
Standby normal thermal expansion or compression displacement is more than the carrying range of hydraulic damper, the i.e. first position or the second position of oil cylinder
When contacting with scribing, instruction device issues corresponding indication signal, so that the thermal expansion or compression displacement of production equipment
More than hydraulic damper carrying range when can be found quickly by staff.
Detailed description of the invention
Fig. 1 is a kind of one of structure chart of hydraulic damper provided by the embodiment of the utility model；
Fig. 2 is the two of a kind of structure chart of hydraulic damper provided by the embodiment of the utility model；
Fig. 3 is the three of a kind of structure chart of hydraulic damper provided by the embodiment of the utility model；
Fig. 4 is the structure chart of the bar shaped graduated scale in a kind of hydraulic damper provided by the embodiment of the utility model；
Fig. 5 is clamping screw, piston barrel and the oil cylinder in a kind of hydraulic damper provided by the embodiment of the utility model
Installation diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figs. 1-5, the utility model embodiment provides a kind of hydraulic damper, comprising:
Piston barrel 1；
Oil cylinder 2 is sheathed in the piston barrel 1, and can be moved back and forth in the piston barrel 1, the oil cylinder 2
Bottom wall 201 be the one end stretched out outside the piston barrel 1；
Scribing 3, the scribing 3 are set on the piston barrel 1；
And position detecting device 4, the position detecting device 4 are set on the oil cylinder 2, and can be with the oil
Cylinder 2 is mobile, is connected with instruction device 5 on the position detecting device 4, and the scribing 3 is contacted with the position detecting device 4,
The surface of the position detecting device 4 can be mobile relative to the scribing 3, when the first position of the position detecting device 4
401 or the second position 402 and the scribing 3 when contacting, the instruction device 5 issues corresponding indication signal；
Wherein, the first position 401 is the first pre-determined distance at a distance from the bottom wall 201 of the oil cylinder 2, described second
Position 402 is the second pre-determined distance at a distance from the bottom wall 201 of the oil cylinder 2, and first pre-determined distance is less than described second
Pre-determined distance.
The working principle of the utility model embodiment can be such that because being provided with the hydraulic of the present embodiment in production equipment
Damper can push oil cylinder 2 in work when production equipment such as pipeline or equipment generate displacement due to thermally expanding or compressing
Movement in plug tube body 1, to drive position detecting device 4 mobile, when the first position of position detecting device 4 401 or second
Set 402 with scribing 3 contact when, indicate at this time production equipment generate displacement be more than hydraulic damper carrying range, instruction dress
Corresponding indication signal can be issued by setting 5, so that staff can have found the thermal expansion or pressure of production equipment in time
Condense the carrying range moved and already exceed the hydraulic damper.After finding above-mentioned phenomenon, pass hull closure can choose, or give
Equipment carries out the subsequent operations such as cooling or heating treatment.
Wherein, instruction device 5 issues the concrete type of corresponding indication signal it is not limited here.Such as: when position is examined
When the first position 401 or the second position 402 for surveying device 4 are contacted with scribing 3, instruction device 5 can sound the alarm or dodge
Bright light signal etc..Certainly, when the other positions of position detecting device 4 and scribing 3 contact, instruction device 5 can also be issued
Corresponding indication signal, such as: can issue indicates the normal green light of hydraulic damper state.
Wherein, referring to Fig. 1, hydraulic damper is also provided with piston 6 and piston rod 7, and piston 6 is set in oil cylinder 2,
Piston 6 can be contacted with the side wall of oil cylinder 2, and one end of piston rod 7 is fixedly installed on piston 6, and the other end of piston rod 7 stretches out
It outside piston barrel 1, and is fixedly connected with piston barrel 1, in this way, piston 6 is fixedly connected on piston barrel 1 by piston rod 7.
When oil cylinder 2 moves back and forth in piston barrel 1, since 1 position of piston barrel is fixed, then 6 position of piston is also fixed, then oil cylinder
2 inner wall can also be moved back and forth along piston 6.In this way, piston 6 can divide oil cylinder 2 for first part 202 and second part
203, and liquid medium such as oil can be set in first part 202 and second part 203, in addition, can also be set on piston 6
It is equipped with the through-hole 601 of connection first part 202 and second part 203, which can be for liquid medium from first part
202 flow to second part 203, first part 202 can also be flowed to from second part 203 for liquid medium, in this way, making oil cylinder
2 in piston barrel 1 when moving back and forth, and the liquid medium that can be convenient between first part 202 and second part 203 is handed over
It changes.It should be noted that when being moved back and forth in piston barrel 1 with oil cylinder 2, the body of first part 202 and second part 203
Product also changes therewith.
Certainly, due to movement be it is opposite, the motion mode in the present embodiment is it is also believed that be: oil cylinder 2 and
The position detecting device 4 being set on oil cylinder 2 is motionless, and the inner wall of piston barrel 1 is moved back and forth along oil cylinder 2, to drive work
Plug 6 and scribing 3 move, when scribing 3 along the apparent motion of position detecting device 4 to the first position of detection device 4 401 or
When the second position 402, instruction device 5 issues corresponding indication signal.
In addition, the liquid medium leakage in oil cylinder 2 in order to prevent, it can also 201 phase of bottom wall on oil cylinder 2, with oil cylinder 2
Pair one end be provided with baffle 8, be also equipped with the through-hole passed through for piston rod 7 on baffle 8, and the liquid in oil cylinder 2 in order to prevent
Gap leakage of the body medium between the through-hole on baffle 8 and piston rod 7, can be between the through-hole and piston rod 7 on baffle 8
It is provided with filler.It certainly, is dismountable connection type between baffle 8 and oil cylinder 2.
Wherein, the material of scribing 3 it is not limited here, such as: scribing 3 can be sheet metal or plastic sheet, it is preferred that
Scribing 3 is sheet metal, in this way, the service life is longer.In addition, scribing 3 can be connected on piston barrel 1 by glue.
Wherein, first position 401 and the second position 402 can respectively indicate production equipment compression displacement more than hydraulic damping
The carrying range of device, and, production equipment expansion displacement is more than the carrying range of hydraulic damper.
Wherein, the specific value of the first pre-determined distance and the second pre-determined distance it is not limited here, such as: first it is default away from
From 1/5th length that can be entire piston barrel 1, and the second pre-determined distance can be 4/5ths of entire piston barrel 1
It is long.
Hydraulic damper provided by the embodiment of the utility model includes: piston barrel, oil cylinder, scribing and position detection dress
It sets, position detecting device is set on oil cylinder, and can be connected with instruction device on position detecting device with oil cylinder movement, is drawn
Piece is contacted with position detecting device, and the surface of position detecting device can be mobile relative to scribing, when the of position detecting device
When one position or the second position and scribing contact, instruction device issues corresponding indication signal, in this way, when detecting pipeline and setting
Standby normal thermal expansion or compression displacement is more than the carrying range of hydraulic damper, the i.e. first position or the second position of oil cylinder
When contacting with scribing, instruction device issues corresponding indication signal, so that the thermal expansion or compression displacement of production equipment
More than hydraulic damper carrying range when can be found quickly by staff.
Optionally, control display device (not marking in figure) is also connected on the position detecting device 4, the control is aobvious
Showing device is used to show the state of the hydraulic damper.
Wherein it is possible to which the hydraulic damper to all installations in Workplace carries out label, and each hydraulic damping
Device has unique number, and control display device can be set in the control room of entire Workplace, in this way, which liquid worked as
When the instruction device of damper being pressed to issue indication signal, the number of the hydraulic damper can be shown in control display device, and
And can show that the number is in abnormality simultaneously, and the displacement that abnormality can generate for production equipment is more than that this is hydraulic
The state of the carrying range of damper.
In the utility model embodiment, control display device can show the state of the hydraulic damper in Workplace,
When some hydraulic damper is when in an abnormal state, that is, the displacement for production equipment generation occur is more than the carrying of the hydraulic damper
When range phenomenon, staff can directly obtain the number signal of the hydraulic damper from control display device, facilitate work
Make personnel to handle in time, improve work efficiency.
Optionally, as shown in Figure 1, the position detecting device 4 includes the first on-off type touch-control limit switch 403 and second
On-off type touch-control limit switch 404, the scribing 3 are located at the first on-off type touch-control limit switch 403 and described second and lead to
Between disconnected formula touch-control limit switch 404, the first on-off type touch-control limit switch 403 is set to the first position 401, institute
It states the second on-off type touch-control limit switch 404 and is set to the second position 402.
Wherein, the first on-off type touch-control limit switch 403 and the second on-off type touch-control limit switch 404 it can be appreciated that
Mechanical limit switch or contact limit switch.
Wherein, the first on-off type touch-control limit switch 403 and the second on-off type touch-control limit switch 404 are filled with instruction respectively
5 electrical connections are set, when scribing 3 is contacted with the first on-off type touch-control limit switch 403 or the second on-off type touch-control limit switch 404
When, instruction device 5 can issue corresponding indication signal.
In addition, scribing 3 connects with the first on-off type touch-control limit switch 403 or the second on-off type touch-control limit switch 404
When touching, instruction device 5 issue indication signal can be it is the same, be also possible to it is different, such as: scribing 3 with first lead to
When disconnected formula touch-control limit switch contact 403, instruction device 5 can issue red light, and scribing 3 and the second on-off type touch-control limit
When switch contact 404, instruction device 5 can issue the light of yellow.
In the utility model embodiment, position detecting device includes the first on-off type touch-control limit switch and the second on-off type
Touch-control limit switch, in this way, can be opened according to the first on-off type touch-control limit switch of detection or the limit of the second on-off type touch-control
Close whether contacted with scribing, judge production equipment generate displacement whether more than the hydraulic damper carrying range, in this way, making
Obtain examination criteria definitely, testing result is more accurate.
Optionally, the position detecting device 4 is resistance sensor, and the scribing 3 is resistance scribing.
Wherein, when the different location of resistance sensor and resistance scribing contact, the resistance of resistance sensor is also always
Changing, be also constantly in variation so as to cause the signal of output, so as to be sentenced by the situation of change of observation signal
The displacement that disconnected production equipment generates whether be more than the hydraulic damper carrying range.
Specifically, for example: when the first position of resistance sensor and resistance scribing contact, resistance sensor output
Resistance signal be 5 ohm, when the second position of resistance sensor and resistance scribing contact, resistance sensor output
Resistance signal is 50 ohm, in this way, illustrating that production is set when the resistance signal of resistance sensor output is between 5-50 ohm
The standby displacement generated is less than the carrying range of the hydraulic damper, so that whether the displacement for judging that production equipment generates surpasses
It is more convenient when crossing the carrying range of the hydraulic damper.
In the utility model embodiment, position detecting device is resistance sensor, and scribing is resistance scribing, due to resistance
Formula sensor and resistance scribing are conventional components, and use cost is lower.
Optionally, as shown in Figure 1-3, the hydraulic damper further include:
Regulating part 9, one end of the regulating part 9 are fixedly installed on the bottom wall 201 of the oil cylinder 2, the regulating part 9
The surface of the other end is provided with external screw thread；
Connector 10 is provided with internal screw thread on the connector 10；
And locking nut 11, the locking nut 11 are set between the regulating part 9 and the connector 10, institute
It states and is provided with internal screw thread and external screw thread on locking nut 11, the outer spiral shell of the internal screw thread of the locking nut 11 and the regulating part 9
Line is spirally connected, and the internal screw thread of the external screw thread and connector 10 of the locking nut 11 is spirally connected.
Wherein, since there are rigging errors or production error to need to adjust when assembling hydraulic damper for production equipment
The length of hydraulic damper rotates 11 relative adjustment part 9 of locking nut in this way, rotation locking nut 11 can be first passed through, from
And extend the length of entire hydraulic damper, later, can also by rotary connector 10, allow connector 10 relative to
Locking nut 9 rotates, to further extend the length of entire hydraulic damper, facilitates installation hydraulic damper.
In addition, connector 11 can be lifting lug.
In the utility model embodiment, hydraulic damper further include: regulating part, connector and locking nut can pass through
The position between regulating part, connector and locking nut is adjusted, so as to extend the length of entire hydraulic damper, into
And facilitate the installation of hydraulic damper, overcoming production equipment, there are the influences of rigging error or production error.
Optionally, as in Figure 2-4,2 surface of oil cylinder is provided with bar shaped graduated scale 12, on the bar shaped graduated scale 12
Including zero graduation line 1201, and the zero graduation line 1201 is set to the middle position of the bar shaped graduated scale 12.
Wherein, when hydraulic damper is mounted in production equipment, the end of piston barrel 1 is located just at bar shaped graduated scale 12
In 1201 position of zero graduation line, i.e., a part of bar shaped graduated scale 1201 is covered in by piston barrel 1 at this time.Such as: as schemed
Shown in 2-4, the bar shaped graduated scale 12 on 1201 left side of zero graduation line can be covered in by piston barrel 1, as oil cylinder 2 is along piston
Cylinder 1 moves back and forth, and the bar shaped graduated scale 12 being hidden may occur in which.In this way, user can be covered by viewing piston barrel 1
Be the bar shaped graduated scale 12 on 1201 left side of zero graduation line or the bar shaped graduated scale 12 on the right of zero graduation line 1201, so as to
To judge the direction of motion of the oil cylinder 2 in hydraulic damper at this time relative to piston barrel 1, and then judge that the hydraulic resistance is installed
The production equipment of Buddhist nun's device is in elongation or compressive state.
In the utility model embodiment, by the way that bar shaped graduated scale is arranged on the surface of oil cylinder, so as to pass through viewing item
Graduation mark on shape graduated scale, so as to intuitively judge the distance length of cylinder movement.
Optionally, as in Figure 2-4, the bar shaped graduated scale 12 is in arrowhead form.
Wherein, when bar shaped graduated scale 12 be in arrowhead form, such as: as in Figure 2-4, zero graduation line 1201 is located in arrow
Between position so as to cover the quantity of graduation mark by detection piston barrel 1 intuitively judge the direction of motion of oil cylinder 2.Example
Such as: the graduation mark that piston barrel 1 covers in can then be sentenced more than the half of the graduation mark of entire bar shaped graduated scale 12
Oil-break cylinder 1 moves downward, if the graduation mark that covers in of piston barrel 1 less than entire bar shaped graduated scale 12 graduation mark two/
One, then it may determine that oil cylinder 2 moves right.Since graduation mark constitutes arrow, so as to intuitively by judging arrow
Size, to judge the direction of motion of oil cylinder 2.
In the utility model embodiment, bar shaped graduated scale is in arrowhead form, is judged as arrowhead form so as to basis
The size of bar shaped graduated scale, to judge the direction of motion of oil cylinder.
Optionally, at least one locking device 13, the locking device are removably provided on the hydraulic damper
13 for fixing the oil cylinder 2 and the piston barrel 1.
Wherein, hydraulic damper during transportation, since oil cylinder 2 can be moved back and forth relative to piston barrel 1, thus
So that hydraulic damper is easily damaged.In this way, at least one locking device 13 is removably provided on hydraulic damper, from
And oil cylinder 2 and piston barrel 1 can be fixed, and it can avoid during transportation, relative motion occurs for oil cylinder 2 and piston barrel 1,
So as to preferably protect hydraulic damper, extend the service life of hydraulic damper.
In the utility model embodiment, it is removably provided at least one locking device on hydraulic damper, can avoid
During transportation, relative motion occurs for oil cylinder and piston barrel, so as to preferably protect hydraulic damper, extends liquid
Press the service life of damper.
Optionally, as shown in Figure 2 and Figure 5, locating slot 204 is provided on the oil cylinder 2, the locking device 13 includes:
Clamping screw 1301, the clamping screw 1301 passes through the piston barrel 1, and is embedded in the locating slot 204.
Wherein, when the fixed oil cylinder 2 of locking device 13 is with piston barrel 1, clamping screw 1301 passes through piston barrel 1, and
It is embedded in locating slot 204, so as to avoid oil cylinder 2 and piston barrel 1 that relative motion occurs；When installing hydraulic damper
Afterwards, clamping screw 1301 is back-outed from locating slot 204, so that oil cylinder 2 can move back and forth in piston barrel 1.
Wherein, in hydraulic damper in use, can not have to lock when i.e. oil cylinder 2 moves back and forth in piston barrel 1
Bolt 1301 is removed from hydraulic damper, in this way, can also play the role of sealing, dust and other impurities is avoided to pass through installation lock
The position of tight bolt 1301 enters in oil cylinder 2, pollutes oil cylinder.
In the utility model embodiment, locking device includes: clamping screw, and clamping screw passes through piston barrel, and is embedded
In locating slot, in this way, locking effect on the one hand can be played, on the other hand, due to the letter of the structure of clamping screw and locating slot
It is single, use cost is reduced, and failure rate is low.
Optionally, described as shown in figure 5, the locating slot 204 and the zero graduation line 1201 are respectively positioned on preset direction
Preset direction is vertical with the direction of motion of the oil cylinder 2.
Wherein, when the fixed oil cylinder 2 of clamping screw 1301 is with piston barrel 1, clamping screw 1301 passes through the end of piston barrel 1
Portion is embedded in locating slot 204, wherein when oil cylinder 2 and piston barrel 1 are in predeterminated position, that is, refers to the end of piston barrel 1
Portion is located on zero graduation line 1201.
In the utility model embodiment, locating slot and zero graduation line are respectively positioned on preset direction, in this way, in the process of transport
In, oil cylinder and piston barrel are adjusted to predeterminated position, to can avoid when installing hydraulic damper, it is also necessary to adjust
The relative position of oil cylinder and piston barrel, and then improve the installation effectiveness of hydraulic damper.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of hydraulic damper characterized by comprising
Piston barrel；
Oil cylinder is sheathed in the piston barrel, and can be moved back and forth in the piston barrel, and the bottom wall of the oil cylinder is
Stretch out one end outside the piston barrel；
Scribing, the scribing are set on the piston barrel；
And position detecting device, the position detecting device are set on the oil cylinder, and can with the oil cylinder movement,
Instruction device is connected on the position detecting device, the scribing is contacted with the position detecting device, the position detection
The surface of device can be mobile relative to the scribing, when the position detecting device first position or the second position with it is described
When scribing contacts, the instruction device issues corresponding indication signal；
Wherein, the first position at a distance from the bottom wall of the oil cylinder be the first pre-determined distance, the second position with it is described
The distance of the bottom wall of oil cylinder is the second pre-determined distance, and first pre-determined distance is less than second pre-determined distance.
2. hydraulic damper according to claim 1, which is characterized in that be also connected with control on the position detecting device
Display device, the control display device are used to show the state of the hydraulic damper.
3. hydraulic damper according to claim 1, which is characterized in that the position detecting device includes the first on-off type
Touch-control limit switch and the second on-off type touch-control limit switch, the scribing be located at the first on-off type touch-control limit switch and
Between the second on-off type touch-control limit switch, the first on-off type touch-control limit switch is set to the first position,
The second on-off type touch-control limit switch is set to the second position.
4. hydraulic damper according to claim 1, which is characterized in that the position detecting device is resistance-type sensing
Device, the scribing are resistance scribing.
5. hydraulic damper according to claim 1, which is characterized in that the hydraulic damper further include:
Regulating part, one end of the regulating part are fixedly installed on the bottom wall of the oil cylinder, the table of the other end of the regulating part
Face is provided with external screw thread；
Connector is provided with internal screw thread on the connector；
And locking nut, the locking nut are set between the regulating part and the connector, on the locking nut
It is provided with internal screw thread and external screw thread, the external thread bolt connection of the internal screw thread of the locking nut and the regulating part, the locking screw
The internal screw thread of female external screw thread and connector is spirally connected.
6. hydraulic damper according to claim 1, which is characterized in that the oil cylinder surface is provided with bar shaped graduated scale,
It include zero graduation line on the bar shaped graduated scale, and the zero graduation line is set to the middle position of the bar shaped graduated scale.
7. hydraulic damper according to claim 6, which is characterized in that the bar shaped graduated scale is in arrowhead form.
8. hydraulic damper according to claim 6, which is characterized in that be removably provided on the hydraulic damper
At least one locking device, the locking device is for fixing the oil cylinder and the piston barrel.
9. hydraulic damper according to claim 8, which is characterized in that be provided with locating slot, the lock on the oil cylinder
Tight device includes: clamping screw, and the clamping screw passes through the piston barrel, and is embedded in the locating slot.
10. hydraulic damper according to claim 9, which is characterized in that the locating slot and the equal position of zero graduation line
In on preset direction, the preset direction is vertical with the direction of motion of the oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821348123.4U CN208669923U (en) | 2018-08-21 | 2018-08-21 | A kind of hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821348123.4U CN208669923U (en) | 2018-08-21 | 2018-08-21 | A kind of hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669923U true CN208669923U (en) | 2019-03-29 |
Family
ID=65839080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821348123.4U Active CN208669923U (en) | 2018-08-21 | 2018-08-21 | A kind of hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669923U (en) |
-
2018
- 2018-08-21 CN CN201821348123.4U patent/CN208669923U/en active Active
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