CN211288589U - Hydraulic buffering electric push rod - Google Patents
Hydraulic buffering electric push rod Download PDFInfo
- Publication number
- CN211288589U CN211288589U CN201921926725.8U CN201921926725U CN211288589U CN 211288589 U CN211288589 U CN 211288589U CN 201921926725 U CN201921926725 U CN 201921926725U CN 211288589 U CN211288589 U CN 211288589U
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- hydraulic
- push rod
- electric push
- hydraulic buffer
- box body
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Abstract
The utility model discloses a hydraulic buffer electric push rod, including box, driving motor and reduction gears, install the lead screw in the box, driving motor passes through reduction gears drives the lead screw is rotatory, threaded connection has the nut on the lead screw, just nut fixedly connected with push pipe, the nut drives the push pipe along reciprocating motion is to the lead screw, still including hydraulic buffer, hydraulic buffer with box fixed connection. The utility model discloses add hydraulic buffer on electric putter, rely on hydraulic damping to push pipe vibrations and impact load that probably bear cushion, make electric putter each mechanical structure not destroyed when bearing big impact to reinforcing electric putter's buffer capacity, noise abatement, extension electric putter life-span.
Description
Technical Field
The utility model relates to an electric putter, in particular to hydraulic buffer electric putter.
Background
The electric push rod is also called a linear driver, and is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control. The existing electric push rod has the defects of weak buffer capacity, high running noise and short service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exist among the prior art, provide a hydraulic cushion electric putter.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a hydraulic buffer electric push rod comprises a box body, a driving motor and a speed reducing mechanism, wherein a screw rod is arranged in the box body, the driving motor drives the screw rod to rotate through the speed reducing mechanism,
the screw rod is connected with a nut in a threaded manner, the nut is fixedly connected with a top pipe, the nut drives the top pipe to do reciprocating motion along the screw rod,
the hydraulic buffer is fixedly connected with the box body.
The utility model discloses a theory of operation is: the driving motor drives the screw rod to rotate through the speed reducing mechanism, so that the nut makes linear reciprocating motion on the screw rod to drive the jacking pipe to be pushed out or retracted. When the push pipe is vibrated or impacted, impact force is transmitted to the nut, the screw rod and the box body in sequence through the push pipe, and is transmitted to the hydraulic buffer through the box body, vibration and impact load are buffered by means of hydraulic damping, so that all mechanical structures of the electric push rod are not damaged when the electric push rod bears large impact, the buffering capacity of the electric push rod is enhanced, noise is reduced, and the service life of the electric push rod is prolonged. The utility model discloses can adopt any hydraulic buffer structure that can realize hydraulic buffer function, be not limited to the utility model discloses in hydraulic buffer structure.
Preferably, a guide pipe is further fixed on the box body, one end of the top pipe is fixedly connected to the nut, and the other end of the top pipe penetrates through the guide pipe. The guide pipe is used for limiting the movement direction of the jacking pipe and ensuring that the jacking pipe does not deviate.
Preferably, the screw rod is connected with the box body through a first bearing.
Preferably, the hydraulic buffer pass through the fastener with the box is detachable to be connected, the fastener can include bolt, screw rod, nut etc. and can set up locking gasket for hydraulic buffer and box still closely laminate when receiving vibrations and impact, do not become flexible and break away from.
Preferably, the hydraulic buffer comprises a hydraulic cylinder, a piston and a piston rod, wherein the piston rod drives the piston to reciprocate in the hydraulic cylinder to squeeze hydraulic oil in the hydraulic cylinder, so that hydraulic buffering is realized.
Preferably, the hydraulic cylinder is internally sleeved with an inner pipe, the size of the inner pipe is matched with that of the piston, a spring and hydraulic oil are arranged in the inner pipe, and the pipe wall of the inner pipe is provided with a plurality of oil discharge holes and oil return holes.
When bearing vibrations and impact load, the piston rod drives hydraulic oil and the spring of piston extrusion inner tube the inside, and hydraulic oil discharges from the oil drain hole of inner tube after the pressurized, and the inner tube is also flowed back to the inner tube through the oil gallery to the hydraulic oil of inner tube discharge simultaneously, and along with the piston continues the motion, the oil drain hole is less and less, and the piston resistance constantly increases promptly, and the resistance is stabilized at the maximum value until the oil drain hole is zero.
When the vibration and impact load disappears, the spring quickly resets the piston rod, the hydraulic oil quickly flows back into the inner pipe, and the hydraulic buffer is restored to the initial state to wait for the next action.
Preferably, the oil return hole and the oil discharge hole are arranged along the axial direction of the inner pipe, the oil return hole is located at one end close to the box body, and the oil discharge hole is located at one end far away from the box body.
Preferably, a pressure storage sponge is arranged between the hydraulic cylinder and the inner pipe.
Preferably, a check valve is installed in the inner tube.
Preferably, a sealing element and a second bearing for supporting the piston rod are arranged in the hydraulic cylinder, and the sealing element comprises a dustproof ring, an oil seal and the like.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses add hydraulic buffer on electric putter, rely on hydraulic damping to push pipe vibrations and impact load that probably bear cushion, make electric putter each mechanical structure not destroyed when bearing big impact to reinforcing electric putter's buffer capacity, noise abatement, extension electric putter life-span.
Description of the drawings:
fig. 1 is a schematic diagram of a three-dimensional structure of a hydraulic buffering electric push rod of the present invention.
Fig. 2 is a cross-sectional view of the hydraulic buffer electric push rod of the present invention.
Fig. 3 is an exploded view of a part of the hydraulic buffer electric push rod of the present invention.
Fig. 4 is a schematic diagram of the main transmission of the hydraulic buffer electric push rod of the present invention.
Fig. 5 is a sectional view of a hydraulic shock absorber according to the present invention.
Fig. 6 is a schematic three-dimensional structure of the hydraulic shock absorber according to the present invention.
Fig. 7 is a schematic three-dimensional structure diagram of the inner tube according to the present invention.
Fig. 8 is a first usage state diagram of the hydraulic shock absorber according to the present invention.
Fig. 9 is a second usage state diagram of the hydraulic shock absorber according to the present invention.
Fig. 10 is a third diagram illustrating a state of use of the hydraulic shock absorber according to the present invention.
The labels in the figure are: 101-driving motor, 102-speed reducing mechanism, 103-screw rod, 104-nut, 105-top pipe, 106-guide pipe, 107-box, 108-first bearing, 2-hydraulic buffer, 201-piston rod, 202-dust ring, 203-oil seal, 204-second bearing, 205-pressure accumulation sponge, 206-hydraulic cylinder, 207-piston, 208-check valve, 209-spring, 210-inner pipe, 210 a-oil drain hole, 210 b-oil return hole, 211-hydraulic oil, 3-bolt and 4-gasket.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-3, the hydraulic buffer electric push rod comprises a box 107, a driving motor 101, a speed reducing mechanism 102, and a hydraulic buffer 2 fixedly connected with the box 107.
Specifically, as shown in fig. 4, a lead screw 103 is installed in the box body 107, the lead screw 103 is connected to the box body 107 through a first bearing 108, a nut 104 is connected to the lead screw 103 in a threaded manner, the nut 104 is fixedly connected to one end of a top pipe 105, the other end of the top pipe 105 penetrates through a guide pipe 106 and penetrates out of the box body 107, and the guide pipe 106 is fixed to the box body 107.
When the push pipe pushing device works, the driving motor 101 drives the screw rod 103 to rotate through the speed reducing mechanism 102, so that the nut 104 makes linear reciprocating motion on the screw rod 103, and the push pipe 105 is driven to make linear reciprocating motion along the screw rod 103, and the push pipe 105 is pushed out and retracted.
Specifically, as shown in fig. 5 to 7, the hydraulic buffer 2 includes a hydraulic cylinder 206, a piston 207, and a piston rod 201, the piston rod 201 is connected to the hydraulic cylinder 206 through a second bearing 204, one end of the piston rod 201 is fixedly connected to the piston 207, and the other end of the piston rod 201 is provided with a bolt hole and is connected to the box 107 through a bolt 3 and a lock washer 4.
An inner pipe 210 is sleeved in the hydraulic cylinder 206, the size of the inner pipe 210 is matched with that of the piston 207, a spring 209 is arranged in the inner pipe 210 and filled with hydraulic oil 211, a plurality of oil discharge holes 210a and oil return holes 210b are axially arranged on the pipe wall of the inner pipe 210 along the inner pipe, the oil return holes 210b are located at one end close to the box body 107, and the oil discharge holes 210a are located at one end far away from the box body 107. A check valve 208 is arranged in the inner pipe 210, the check valve 208 can be arranged on the piston 207, a pressure accumulation sponge 205 is arranged between the hydraulic cylinder 206 and the inner pipe 210, and a dustproof ring 202 and an oil seal 203 are arranged at the joint of the hydraulic cylinder 206 and the piston rod 201.
When the top pipe 105 is vibrated or impacted, the impact force is sequentially transmitted to the nut 104, the screw rod 103 and the box body 107 through the top pipe 105, and is transmitted to the piston rod 201 through the box body 107, the piston rod drives the piston 207 to extrude hydraulic oil 211 and the spring 209 in the inner pipe 210, the hydraulic oil 211 is discharged from the oil discharge hole 210a of the inner pipe 210 after being pressed, meanwhile, the hydraulic oil 211 discharged from the inner pipe 210 also flows back to the inner pipe 210 through the oil return hole 210b, the oil discharge hole 210a is less and less as the piston 207 continues to move, as shown in fig. 8-9, namely, the resistance of the piston 207 is continuously increased until the oil discharge hole 210a is zero, and the resistance is stabilized at the maximum value as shown.
When the shock and impact load disappears, the spring 209 rapidly returns the piston rod 201, the hydraulic oil 211 rapidly returns to the inner tube 210 through the opened check valve 208, and the hydraulic shock absorber 2 is restored to the initial state to wait for the next operation.
The utility model discloses rely on hydraulic damping to shake and impact load and cushion, make electric putter each mechanical structure not destroyed when bearing big impact to reinforcing electric putter's buffer capacity, noise abatement, extension electric putter life-span. The utility model discloses can adopt any hydraulic buffer structure that can realize hydraulic buffer function, be not limited to hydraulic buffer structure.
The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement may be made to the present invention; all technical solutions and modifications without departing from the spirit and scope of the present invention should be covered by the claims of the present invention.
Claims (10)
1. A hydraulic buffer electric push rod is characterized by comprising a box body, a driving motor and a speed reducing mechanism, wherein a screw rod is arranged in the box body, the driving motor drives the screw rod to rotate through the speed reducing mechanism,
the screw rod is connected with a nut in a threaded manner, the nut is fixedly connected with a top pipe, the nut drives the top pipe to do reciprocating motion along the screw rod,
the hydraulic buffer is fixedly connected with the box body.
2. The hydraulic buffering electric push rod of claim 1, wherein a guide pipe is further fixed on the box body, one end of the top pipe is fixedly connected to the nut, and the other end of the top pipe penetrates through the guide pipe.
3. The hydraulic buffer electric push rod as claimed in claim 1, wherein the lead screw is connected with the box body through a first bearing.
4. The hydraulic buffer electric push rod as claimed in any one of claims 1 to 3, wherein the hydraulic buffer is detachably connected to the housing by a fastener.
5. The hydraulic buffer electric push rod as claimed in claim 1, wherein the hydraulic buffer comprises a hydraulic cylinder, a piston and a piston rod, and the piston rod drives the piston to reciprocate in the hydraulic cylinder.
6. The hydraulic buffering electric push rod according to claim 5, wherein an inner tube is sleeved in the hydraulic cylinder, the inner tube is matched with the piston in size, a spring and hydraulic oil are arranged in the inner tube, and a plurality of oil discharge holes and oil return holes are formed in the tube wall of the inner tube.
7. The hydraulic buffering electric push rod according to claim 6, wherein the oil return hole and the oil discharge hole are arranged along an axial direction of the inner tube, the oil return hole is located at one end close to the box body, and the oil discharge hole is located at one end far away from the box body.
8. The hydraulic buffer electric push rod as claimed in claim 6, wherein a pressure-accumulating sponge is arranged between the hydraulic cylinder and the inner tube.
9. The hydraulic buffer electric push rod as claimed in claim 6, wherein a check valve is installed in the inner tube.
10. A hydraulically damped electric push rod according to any one of claims 5 to 9 wherein a sealing element is provided within said hydraulic cylinder and a second bearing is provided for supporting said piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926725.8U CN211288589U (en) | 2019-11-08 | 2019-11-08 | Hydraulic buffering electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921926725.8U CN211288589U (en) | 2019-11-08 | 2019-11-08 | Hydraulic buffering electric push rod |
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| Publication Number | Publication Date |
|---|---|
| CN211288589U true CN211288589U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921926725.8U Active CN211288589U (en) | 2019-11-08 | 2019-11-08 | Hydraulic buffering electric push rod |
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| CN (1) | CN211288589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686041A (en) * | 2019-11-08 | 2020-01-14 | 四川宏华石油设备有限公司 | Hydraulic buffering electric push rod |
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2019
- 2019-11-08 CN CN201921926725.8U patent/CN211288589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686041A (en) * | 2019-11-08 | 2020-01-14 | 四川宏华石油设备有限公司 | Hydraulic buffering electric push rod |
| CN110686041B (en) * | 2019-11-08 | 2024-04-09 | 四川宏华石油设备有限公司 | Hydraulic buffering electric push rod |
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