CN106787413B - Electric putter convenient to maintain - Google Patents
Electric putter convenient to maintain Download PDFInfo
- Publication number
- CN106787413B CN106787413B CN201611240546.XA CN201611240546A CN106787413B CN 106787413 B CN106787413 B CN 106787413B CN 201611240546 A CN201611240546 A CN 201611240546A CN 106787413 B CN106787413 B CN 106787413B
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- Prior art keywords
- rod
- sealing
- side wall
- box body
- shaft cover
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- 238000007789 sealing Methods 0.000 claims abstract description 71
- 238000005461 lubrication Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides an electric push rod convenient to maintain, which comprises an outer rod, wherein an inner rod which moves back and forth along the axial direction of the outer rod is sleeved in the outer rod, and the outer end part of the inner rod is fixedly connected with an output end connecting rod in a sealing way; an outer oilless lubrication bearing is arranged between the outer rod and the inner rod, and a movable sealing ring propped against the outer side wall of the inner rod is arranged at the outer end part of the outer rod; one end of the screw rod is in transmission connection with the motor, and the other end of the screw rod is arranged in the inner rod and is propped against the inner side wall of the inner rod through the second bearing bush; the nut is fixedly connected to the inner end part of the inner rod and matched with the screw rod. The electric push rod convenient to maintain is compact in structure, and can work normally in a severe environment while ensuring a dustproof effect; the maintenance frequency of the lubricating system is greatly reduced, and the maintenance cost is saved. Through the transmission mode of matching the worm wheel and the worm, the invention has compact structure, stable transmission, reliable output, low noise and self-locking function.
Description
Technical Field
The invention belongs to the field of solar photo-thermal power generation, and particularly relates to an electric push rod.
Background
The solar photo-thermal power generation is divided into four types, namely a tower type, a groove type, a disc type and a Fresnel type according to a solar energy collection mode. The scheme is applied to a tower type photo-thermal power generation system. The tower type photo-thermal power generation is a power generation mode that a plurality of large heliostats are installed on a large-area field, sunlight is reflected to a receiver at the top of a high tower, received light energy heats working media to high temperature, high-temperature and high-pressure hot steam is generated through heat exchange, and a turbine set is driven to drive a generator to generate power. Because the sun moves from moment to moment relative to the earth, the heliostat needs to be adjusted in inclination angle in order to ensure that the sun light can be accurately collected on the solar energy collecting device for a long time.
The traditional heliostat adjusting device is driven by a large speed reducer, and is complex in equipment and high in manufacturing cost. And because solar photo-thermal power generation equipment is mostly placed in a dry area with long sunlight time, the use environment is worse, the tightness of a conventional electric push rod is poorer, and lubrication and maintenance are required to be frequently carried out, so that time and labor are wasted.
Disclosure of Invention
In view of the above, the invention aims to provide an electric push rod convenient to maintain, so as to solve the problems of high manufacturing cost of a speed reducer, complex equipment, poor tightness of a conventional push rod and frequent lubrication in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
an electric push rod convenient to maintain comprises an outer rod, wherein an inner rod which moves back and forth along the axial direction of the outer rod is sleeved in the outer rod, and the outer end part of the inner rod is fixedly connected with an output end connecting rod in a sealing way; an outer oilless lubrication bearing is arranged between the outer rod and the inner rod, and a movable sealing ring propped against the outer side wall of the inner rod is arranged at the outer end part of the outer rod; one end of the screw rod is in transmission connection with the motor, and the other end of the screw rod is arranged in the inner rod and is propped against the inner side wall of the inner rod through the second bearing bush; the nut is fixedly connected to the inner end part of the inner rod and matched with the screw rod.
Further, the motor also comprises a sealing box body, wherein the shell of the motor is fixedly connected with the outer side wall of the sealing box body through a motor seat; a worm and a worm wheel which are matched in a transmission way are arranged in the sealed box body; the worm is rotationally connected with two side walls deviating from the sealed box body through two first bearings, and one end of the worm penetrates through the sealed box body to be connected with a motor shaft key of the motor; the worm wheel is rotationally connected with two side walls deviating from the sealing box body through two second bearings, and the worm wheel is connected with the lead screw key.
Further, a sealing cover is inserted on the side wall of the sealing box body, the position of the sealing cover corresponds to the end part of the worm, which is away from the motor, and an O-shaped sealing ring is arranged on the side wall of the sealing cover, which is assembled with the sealing box body in a plugging way; the outer sides of the two side walls of the sealing box body corresponding to the worm wheel are fixedly connected with a first shaft cover and a second shaft cover respectively, and one second shaft cover is arranged on the inner side wall of the second shaft cover; the screw rod penetrates through the second shaft cover to be connected with the worm gear key; one end of the outer rod is fixedly connected with the outer side wall of the second shaft cover; o-shaped sealing rings are respectively arranged at the position where the second shaft cover is matched with the sealing box body and the position where the second shaft cover is matched with the outer rod.
Further, a shaft sleeve is sleeved on the part of the screw rod penetrating through the second shaft cover, an oil seal is arranged between the second shaft cover and the shaft sleeve, and the oil seal is close to the second bearing; an inner oil-free lubrication bearing is also arranged between the second shaft cover and the shaft sleeve.
Further, the nut is sleeved with a first bearing bush, the first bearing bush is made of polytetrafluoroethylene, and the second bearing bush is made of polyurethane.
Further, the nut is in threaded connection with the inner rod, a plurality of locking holes are formed in the outer side wall of the nut, and the locking holes are distributed in a spiral mode around the axis of the nut.
Further, the second bearing bush is sleeved on the outer side of the supporting sleeve, and the supporting sleeve is in interference connection with the screw rod through the connecting section at the end part of the screw rod.
Further, the end part of the outer rod is in threaded connection with a sealing sleeve, and an O-shaped sealing ring is arranged at the part of the sealing sleeve matched with the outer rod; the movable sealing rings are two in number and are arranged on the inner side wall of the sealing sleeve in parallel along the axis of the outer rod; the outer oilless lubrication bearing is arranged on the inner side wall of the sealing sleeve and is positioned on the inner side of the movable sealing ring.
Further, the output end connecting rod is connected to the end part of the inner rod in a threaded mode, and an O-shaped sealing ring is installed at the matched part of the output end connecting rod and the inner rod.
Compared with the prior art, the electric push rod convenient to maintain has the following advantages:
the electric push rod convenient to maintain has a compact structure and a design service life of up to 30 years. By arranging O-shaped sealing rings between the connecting parts, the invention can normally work in a severe environment of minus 28 ℃ to 50 ℃ while ensuring the dustproof effect. Through the inner oil-free lubrication bearing and the outer oil-free lubrication bearing, the maintenance frequency of the lubrication system can be greatly reduced, and the maintenance cost is saved. Through the transmission mode of matching the worm wheel and the worm, the invention has compact structure, stable transmission, reliable output, low noise and self-locking function.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a front view cross-section of an electric putter of an embodiment of the present invention for ease of maintenance;
FIG. 2 is a cross-sectional view taken along the A-A plane of FIG. 1;
FIG. 3 is an enlarged view of section I of FIG. 2;
fig. 4 is an isometric view of a nut of an electric putter with easy maintenance according to an embodiment of the present invention.
Reference numerals illustrate:
1-a motor; 2-a motor base; 3-worm; 31-a first bearing; 4-blank cap; 41-inserting and extracting the threaded holes; 5-worm wheel; 51-a second bearing; 6, sealing the box body; 61-a first shaft cover; 62-a second shaft cover; 7-circlips for holes; 8-adjusting pad; 9-a lead screw; 91-connecting segments; 92-nut; 93-locking a nut; 10-oil seal; 11-shaft sleeve; 12-inner oil-free lubrication bearing; 121-an outer oilless lubrication bearing; 13-a nut; 131-locking holes; 14-a first bearing shell; 15-an outer rod; 16-an inner rod; 17-a movable sealing ring; 18-sealing sleeve; 19-an output end connecting rod; 20-a second bush; 21-supporting sleeve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
1-3, the invention provides an electric push rod convenient to maintain, which comprises an outer rod 15, wherein an inner rod 16 which axially reciprocates along the outer rod 15 is sleeved in the outer rod 15, and an output end connecting rod 19 is fixedly connected at the outer end part of the inner rod 16 in a sealing way; an outer oilless lubrication bearing 121 is arranged between the outer rod 15 and the inner rod 16, and a movable sealing ring 17 propped against the outer side wall of the inner rod 16 is arranged at the outer end part of the outer rod 15; one end of the screw rod 9 is in transmission connection with the motor 1, and the other end of the screw rod is arranged in the inner rod 16 and is propped against the inner side wall of the inner rod 16 through the second bearing bush 20; and a nut 13 fixedly connected to the inner end of the inner rod 16 and matched with the screw 9.
The "inner end" is a side close to the motor 1, and the "outer end" is an output end of the inner rod 16 to the outside.
The motor also comprises a sealed box body 6, and the shell of the motor 1 is fixedly connected with the outer side wall of the sealed box body 6 through a motor seat 2; a worm 3 and a worm wheel 5 which are matched in a transmission way are arranged in the sealed box body 6; the worm 3 is rotationally connected with two side walls deviating from the sealed box body 6 through two first bearings 31, and one end of the worm 3 passes through the sealed box body 6 to be connected with a motor shaft key of the motor 1; the worm wheel 5 is rotatably connected with two side walls of the sealed box body 6, which are away from each other, through two second bearings 51, and the worm wheel 5 is in key connection with the lead screw 9.
The first bearing 31 is a tapered roller bearing, and the second bearing 51 is a thrust ball bearing.
The invention adopts the transmission mode of matching the worm wheel 5 and the worm 3, so that the invention has compact structure, stable transmission, low noise and self-locking function. At the same time, the transmission mode can also effectively enhance the thrust of the inner rod 16.
The sealing box body 6 is provided with a sealing cover 4 in a plugging manner, the position of the sealing cover 4 corresponds to the end part of the worm 3, which is away from the motor 1, and the sealing cover 4 and the sealing box body 6 are provided with O-shaped sealing rings on the plugging side wall; the outer sides of the two side walls of the sealing box body 6 corresponding to the worm wheel 5 are fixedly connected with a first shaft cover 61 and a second shaft cover 62 respectively, wherein one second shaft cover 51 is arranged on the inner side wall of the second shaft cover 62; the screw rod 9 passes through the second shaft cover 62 and is connected with the worm wheel 5 in a key way; one end of the outer rod 15 is fixedly connected with the outer side wall of the second shaft cover 62; o-rings are respectively installed at the position where the second shaft cover 62 is matched with the sealing box body 6 and the position where the second shaft cover 62 is matched with the outer rod 15. The second shaft cover 62 and the outer rod 15 are fixed in a threaded connection manner, and the second shaft cover 62 and the sealing box 6 are fixed in a flange connection manner.
The end of the screw rod 9, which is matched with the worm wheel 5, is provided with a nut 92, and the nut 92 is used for limiting the axial position between the screw rod 9 and the worm wheel 5; a locking nut 93 is further installed on the outer side of the nut 92, and is used for fixing the nut 92 to prevent loosening.
The cover 4 is used for disassembling and maintaining the first bearing 31 and the worm 3, the outer side wall of the cover 4 is provided with a plug threaded hole 41, and a threaded handle or screw is mounted on the cover 4 through the plug threaded hole 41 so as to facilitate disassembly of the cover 4. The depth to which the closure cap 4 is inserted into the side wall of the sealed housing 6 is defined by a circlip 7 for the hole mounted in the side wall of the insertion hole. The circlip 7 also serves to define the position of the first bearing 31 adjacent the cover 4, and an adjustment pad 8 is mounted between the circlip 7 and the first bearing 31.
A shaft sleeve 11 is sleeved on a part of the screw rod 9 penetrating through the second shaft cover 62, an oil seal 10 is arranged between the second shaft cover 62 and the shaft sleeve 11, and the oil seal 10 is close to the second bearing 51; an inner oilless bearing 12 is also mounted between the second shaft cover 62 and the sleeve 11. The inner oilless lubrication bearing 12 is located outside the oil seal 10.
The inner oilless bearing 12 is secured to the second shaft cover 62 by an interference fit.
The oil seal 10 has a skeleton structure for ensuring that lubricating grease between the worm 3, the worm wheel 5 and the second bearing 51 does not leak along the shaft sleeve 11.
The nut 13 is sleeved with a first bearing bush 14, the first bearing bush 14 is made of polytetrafluoroethylene, and the second bearing bush 20 is made of polyurethane. The first bearing shell 14 and the second bearing shell 20 are respectively provided with openings, so that the cross sections of the first bearing shell 14 and the second bearing shell are in a broken annular shape, and the structure facilitates the installation of the first bearing shell and the second bearing shell.
By adopting polytetrafluoroethylene and polyurethane materials, the first bearing bush 14 and the second bearing bush 20 can realize the supporting function, and simultaneously can effectively reduce friction and prolong the service life of the invention. The first bearing shell 14 and the second bearing shell 20 are respectively provided with two, and the structure can ensure the stability of the support.
Meanwhile, the polytetrafluoroethylene and polyurethane materials can reduce the surface roughness requirements of the inner side walls of the outer rod 15 and the inner rod 16.
The nut 13 is screwed with the inner rod 16, and a plurality of locking holes 131 are formed in the outer side wall of the nut 13, and the locking holes 131 are spirally distributed around the axis of the nut 13 (as shown in fig. 3). The locking hole 131 is used for completing connection and fixation of the nut 13 and the inner rod 16, and the influence of the locking hole 131 on the strength of the nut 13 can be reduced due to the spiral distribution structure.
The second bearing bush 20 is sleeved on the outer side of the supporting sleeve 21, and the supporting sleeve 21 is in interference connection with the screw rod 9 through a connecting section 91 at the end part of the screw rod 9.
The end part of the outer rod 15 is in threaded connection with a sealing sleeve 18, and an O-shaped sealing ring is arranged at the part of the sealing sleeve 18 matched with the outer rod 15; the two movable sealing rings 17 are arranged in parallel along the axis of the outer rod 15 on the inner side wall of the sealing sleeve 18; the outer oilless bearing 121 is mounted on the inner side wall of the seal housing 18 and is positioned on the inner side of the movable seal ring 17. The movable sealing ring 17 is a piston rod dustproof sealing ring.
The outer oilless lubrication bearing 121 is fixed to the sealing sleeve 18 by interference connection.
The output end connecting rod 19 is screwed to the end of the inner rod 16, and an O-ring is mounted to the portion of the output end connecting rod 19 that mates with the inner rod 16. The output link 19 is used for connection to an external device, and thus may be configured as a threaded rod, a pin-hole rod, or the like.
When the worm gear is used, the motor 1 drives the worm 3 to rotate, and the worm 3 drives the screw rod 9 to rotate through the worm wheel 5. The nut 13 drives the inner rod 16 to stretch and retract along the axial direction of the outer rod 15 under the action of the lead screw 9, and performs push-pull operation on external equipment through the output end connecting rod 19.
The electric push rod convenient to maintain is compact in structure and long in service life. By arranging O-shaped sealing rings between the connecting parts, the invention can normally work in a severe environment of minus 28 ℃ to 50 ℃ while ensuring the dustproof effect. By the inner oil-free lubrication bearing 12 and the outer oil-free lubrication bearing 121, the maintenance frequency of the lubrication system of the present invention can be greatly reduced, and the maintenance cost can be saved. Through the transmission mode of matching the worm wheel 5 and the worm 3, the invention has the advantages of compact structure, stable transmission, reliable output, low noise and self-locking function.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An electric putter convenient to maintain, characterized by comprising:
an outer rod (15), an inner rod (16) which axially reciprocates along the outer rod (15) is sleeved in the outer rod, and an output end connecting rod (19) is fixedly connected at the outer end part of the inner rod (16) in a sealing way; an outer oil-free lubrication bearing (121) is arranged between the outer rod (15) and the inner rod (16), and a movable sealing ring (17) propped against the outer side wall of the inner rod (16) is arranged at the outer end part of the outer rod (15);
one end of the screw rod (9) is in transmission connection with the motor (1), and the other end of the screw rod is arranged in the inner rod (16) and is propped against the inner side wall of the inner rod (16) through the second bearing bush (20);
the nut (13) is fixedly connected to the inner end part of the inner rod (16) and is matched with the screw rod (9);
the motor also comprises a sealing box body (6), wherein the shell of the motor (1) is fixedly connected with the outer side wall of the sealing box body (6) through a motor seat (2); a worm (3) and a worm wheel (5) which are matched in a transmission way are arranged in the sealing box body (6);
the worm (3) is rotationally connected with two side walls, which are away from the sealed box body (6), through two first bearings (31), and one end of the worm (3) penetrates through the sealed box body (6) to be connected with a motor shaft key of the motor (1);
the worm wheel (5) is rotationally connected with two side walls, which are away from the sealed box body (6), through two second bearings (51), and the worm wheel (5) is in key connection with the lead screw (9);
the sealing box is characterized in that a sealing cover (4) is inserted into the side wall of the sealing box body (6), the position of the sealing cover (4) corresponds to the end part of the worm (3) deviating from the motor (1), and an O-shaped sealing ring is arranged on the side wall of the sealing box body (6) in an inserting and assembling mode;
the outer sides of two side walls of the sealing box body (6) corresponding to the worm wheel (5) are fixedly connected with a first shaft cover (61) and a second shaft cover (62) respectively, and one second shaft cover (51) is arranged on the inner side wall of the second shaft cover (62); the screw rod (9) penetrates through the second shaft cover (62) and is connected with the worm wheel (5) in a key manner; one end of the outer rod (15) is fixedly connected with the outer side wall of the second shaft cover (62);
o-shaped sealing rings are respectively arranged at the position where the second shaft cover (62) is matched with the sealing box body (6) and the position where the second shaft cover (62) is matched with the outer rod (15).
2. The maintenance-friendly electric putter as set forth in claim 1, wherein: the part of the screw rod (9) penetrating through the second shaft cover (62) is sleeved with a shaft sleeve (11), an oil seal (10) is arranged between the second shaft cover (62) and the shaft sleeve (11), and the oil seal (10) is close to the second bearing (51); an inner oil-free lubrication bearing (12) is also arranged between the second shaft cover (62) and the shaft sleeve (11).
3. The maintenance-friendly electric putter as set forth in claim 1, wherein: the nut (13) is sleeved with a first bearing bush (14), the first bearing bush (14) is made of polytetrafluoroethylene, and the second bearing bush (20) is made of polyurethane.
4. The maintenance-friendly electric putter as set forth in claim 1, wherein: the nut (13) is in threaded connection with the inner rod (16), a plurality of locking holes (131) are formed in the outer side wall of the nut (13), and the locking holes (131) are distributed in a spiral mode around the axis of the nut (13).
5. The maintenance-friendly electric putter as set forth in claim 1, wherein: the second bearing bush (20) is sleeved on the outer side of the supporting sleeve (21), and the supporting sleeve (21) is in interference connection with the screw (9) through a connecting section (91) at the end part of the screw (9).
6. The maintenance-friendly electric putter as set forth in claim 1, wherein: the end part of the outer rod (15) is in threaded connection with a sealing sleeve (18), and an O-shaped sealing ring is arranged at the part of the sealing sleeve (18) matched with the outer rod (15); the number of the movable sealing rings (17) is two, and the movable sealing rings are arranged on the inner side wall of the sealing sleeve (18) in parallel along the axis of the outer rod (15); the outer oil-free lubrication bearing (121) is arranged on the inner side wall of the sealing sleeve (18) and is positioned on the inner side of the movable sealing ring (17).
7. The maintenance-friendly electric putter as set forth in claim 1, wherein: the output end connecting rod (19) is connected to the end part of the inner rod (16) in a threaded mode, and an O-shaped sealing ring is installed at the matched part of the output end connecting rod (19) and the inner rod (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611240546.XA CN106787413B (en) | 2016-12-29 | 2016-12-29 | Electric putter convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611240546.XA CN106787413B (en) | 2016-12-29 | 2016-12-29 | Electric putter convenient to maintain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106787413A CN106787413A (en) | 2017-05-31 |
| CN106787413B true CN106787413B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611240546.XA Active CN106787413B (en) | 2016-12-29 | 2016-12-29 | Electric putter convenient to maintain |
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| CN (1) | CN106787413B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107314090A (en) * | 2017-07-04 | 2017-11-03 | 浙江捷昌线性驱动科技股份有限公司 | It is a kind of can bidirectional self-locking electric pushrod |
| CN107366746A (en) * | 2017-07-04 | 2017-11-21 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod of multilayer proofing |
| CN109500562A (en) * | 2018-11-23 | 2019-03-22 | 徐州金港起重机制造有限公司 | A kind of washer feeding material component |
| CN109921337B (en) * | 2019-03-14 | 2023-08-25 | 青岛理工大学 | Mine underground passage or underground pipe gallery wiring device and wiring device |
| CN111342608B (en) * | 2020-04-03 | 2022-01-14 | 嵊州市宏诺机电有限公司 | Motor, motor driving system, electric push rod and electric speed reducer |
| CN112128452B (en) * | 2020-08-13 | 2022-03-29 | 未来天工(北京)科技有限责任公司 | Transmission mechanism for automatically opening and closing sewage suction truck sewage draining outlet |
| EP4369574A1 (en) * | 2021-08-10 | 2024-05-15 | Remacro Technology Co., Ltd. | Motor driving structure and motor driving device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997453A (en) * | 2009-08-24 | 2011-03-30 | 廖恒俊 | Two-axes solar tracking system and device for solar panels |
| WO2016061937A1 (en) * | 2014-10-24 | 2016-04-28 | 浙江恒丰泰减速机制造有限公司 | Precision rotational transmission mechanism |
| CN204633523U (en) * | 2015-05-20 | 2015-09-09 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN105119419A (en) * | 2015-09-25 | 2015-12-02 | 北京万阳天力新能源科技有限公司 | Open type electric push rod |
| CN105932947A (en) * | 2016-05-13 | 2016-09-07 | 洛阳斯特林智能传动科技有限公司 | Tower-type solar tracking system drive device |
| CN206294013U (en) * | 2016-12-29 | 2017-06-30 | 中能（天津）智能传动设备有限公司 | A kind of electric pushrod for being easy to safeguard |
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| CN106787413A (en) | 2017-05-31 |
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