CN202833919U - Bi-power electric drive pusher - Google Patents
Bi-power electric drive pusher Download PDFInfo
- Publication number
- CN202833919U CN202833919U CN 201220422472 CN201220422472U CN202833919U CN 202833919 U CN202833919 U CN 202833919U CN 201220422472 CN201220422472 CN 201220422472 CN 201220422472 U CN201220422472 U CN 201220422472U CN 202833919 U CN202833919 U CN 202833919U
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- Prior art keywords
- cylinder barrel
- lead screw
- screw pair
- guide sleeve
- supporting base
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Abstract
The utility model discloses a bi-power electric drive pusher which consists of a cylinder barrel, a carrying device and an electric actuating device. The carrying device is arranged inside the cylinder barrel, the electric actuating device is arranged on one end of the cylinder barrel and the two are fixedly connected with each other to drive the carrying device to move up and down along the axis of the cylinder barrel. A sealed cavity is further arranged inside the cylinder barrel, and the carrying device, the electric actuating device and the cylinder barrel surround the sealed cavity, and connect to form the sealed cavity. An air inlet connected with a pneumatic/ hydraulic power supply is formed on the cylinder barrel, and the pneumatic/hydraulic power supply is communicated with the sealed cavity. With a sealed cavity for letting air/liquid in being arranged on the electric drive pusher, the bi-power electric drive pusher can linear drive by using the two drives as major power. The bi-power electric drive pusher further has the advantages of high-speed and high-precision in drive control of the electric drive pusher, high capacity, low noise and the like.
Description
Technical field
The utility model relates to the electric pushrod technical field, particularly a kind of hybrid electrical push rod for heavy duty.
Background technique
Existing electric pushrod is as linear drive commonly used, with the space of top prominence that it can be realized at a high speed, the characteristics such as quiet, highi degree of accuracy occupy linear drive gradually.Because it is the characteristic of property of electric pushrod that electric linear drives structure, the structure of whole pure machinery is when realizing heavy duty, and leading screw and lead screw pair will be born larger power, and behind the long-play, leading screw and lead screw pair can be damaged, and its load-carrying properties reduce; In addition, for the leading screw of same structure size or lead screw pair when bearing heavy duty, its maximum load of bearing is certain, if use for a long time or under overburdening, use, especially in unconventional back off procedure, can produce directly apart under the collision situation, the leading screw of electric pushrod and lead screw pair meeting rapid wearing or damage, in such cases, driving the required Motor torque of leading screw rotation certainly will increase greatly, in case the moment of torsion of demarcating above motor can burn out motor, directly affects the working life of electric pushrod.If the situation that heavy duty increases occurs, need to enable the larger leading screw of ability to bear and lead screw pair structure and than the motor of high pulling torque, to guarantee safe bearing load.Therefore, improve from machinery merely the main bearing capacity of electric pushrod, namely increase the diameter of central support means and the moment of torsion of drive motor, will certainly increase substantially the manufacture cost of electric pushrod.
The model utility content
In order to solve the problem of prior art, in the situation that do not change the bearing capacity that the electric pushrod physical dimension improves electric pushrod, prolong the working life of electric pushrod, reduce fabricating cost, the utility model provides a kind of hybrid electrical push rod.
Described technological scheme is as follows:
A kind of hybrid electrical push rod comprises: cylinder barrel;
Bearing device is arranged in the described cylinder barrel; And
Electric driver is arranged at an end of described cylinder barrel, and the two is fixedly connected with, and is used for driving described bearing device and moves up and down along the axis of described cylinder barrel;
One airtight chamber also is set in the described cylinder barrel, described airtight chamber is enclosed to connect by described bearing device, electric driver and cylinder barrel and forms, form on the described cylinder barrel be connected with the pneumatic/hydraulic power source enter the gas/liquid hole, describedly enter the gas/liquid hole and be connected with described airtight chamber, described bearing device is connected/liquid-tight be connected airtight with described cylinder barrel with electric driver.
Described bearing device comprises:
Piston rod is arranged in the described cylinder barrel, and it is hollow structure, and the one end stretches out described cylinder barrel end, and forms closed end;
Lead screw pair is fixed the lower end with described piston rod;
Guide sleeve is fixedly connected with described lead screw pair, and its periphery is provided with sealing gland/fluid-tight, and/liquid-tight be connected airtight with described inner wall of cylinder.
Described electric driver comprises:
Drive motor, leading screw and supporting base, one end of described supporting base is fixedly connected with described drive motor, its the other end is airtight with an end of described cylinder barrel/liquid-tight the connection, one end of described leading screw is connected with described drive motor, and form rotary seal with described supporting base, the other end of described leading screw runs through described lead screw pair and extends in the cavity of described piston rod, and described leading screw and described lead screw pair form transmission and support; Described airtight chamber is enclosed to connect by described supporting base, lead screw pair, guide sleeve and cylinder barrel and forms.
Preferably, described leading screw is ball screw, and described lead screw pair is ball screw pair.Its degree of regulation is higher, makes the bearing capacity of electric pushrod stronger.
Described guide sleeve is fixed in the connecting end of described lead screw pair and described piston rod, and described guide sleeve and described lead screw pair are one-body molded.
Or preferred, described guide sleeve is fixed in described lead screw pair near an end of described supporting base, and described guide sleeve and described lead screw pair are one-body molded.
Or preferred, described guide sleeve is placed on the middle part of described lead screw pair, and described guide sleeve is connected by thread seal with described lead screw pair.
The beneficial effect that technological scheme provided by the utility model is brought is:
A; by an airtight chamber is set in electric pushrod; in airtight chamber, send into pressed gas or hydraulic pressure by entering the gas/liquid hole; when electric pushrod is in work stationary support state; rely on the supporting effect between leading screw and the lead screw pair that heavy duty is supported; the larger active force of load-bearing between leading screw and the lead screw pair; by sending into pneumatic/hydraulic to airtight chamber; pneumatic/hydraulic acts on guide sleeve and the lead screw pair; produce effect upwards; lead screw pair is produced a supplemental support power; thereby further slacken the active force between leading screw and the lead screw pair, leading screw and lead screw pair are played certain protective role, prolong its working life.
B, when leading screw drives its rotation by drive motor, the piston rod elongation, owing to being under local function, need to overcome between leading screw and the lead screw pair because the frictional force that produces of pressure, therefore need to could drive than the drive motor of high pulling torque the leading screw rotation, the utility model produces auxiliary support force by pneumatic/hydraulic to lead screw pair, the effect that produces between leading screw and lead screw pair is greatly reduced, therefore, needed power also just greatly reduces when starting the drive motor rotation, and lower of equal conditions needs the drive motor of selection of small moment of torsion can satisfy the driving requirement.Because pneumatic/hydraulic plays the supplemental support effect to heavy duty, subdued the active force between leading screw and the lead screw pair, therefore also can further subdue for the physical dimension of lead screw pair and leading screw, greatly reduced the fabricating cost of electric pushrod, also made simultaneously electric pushrod reach equal enabling capabilities.
C, occur in the unconventional operation at electric and software, the reverse support of pneumatic/hydraulic and load can guarantee that mechanical structure does not produce direct distance collision in unconventional back off procedure, guarantee that directly mechanical structure can not be damaged by collision, and plays buffer function.
D, the preferred working pressure gas of the utility model are as auxiliary power, because the pressed gas ratio is easier to obtain, with low cost, and pressed gas pollutes the environment unlike hydraulic oil to surrounding environment, repair also and very clean, can directly pressure be laid down and get final product, also can not exert an influence and the side effect such as corrosion to the miscellaneous part in the electric cylinder.
E, be combined with cylinder/liquid cylinder entity by making electric cylinder, can greatly improve old complete machine structure, reduced the cost that complete machine supports from new outfit, make the complete machine structure profile become succinct.
Description of drawings
In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is hybrid electrical pusher structure schematic diagram provided by the utility model;
Fig. 2 is the another kind of means of fixation of guide sleeve provided by the utility model and lead screw pair.
Among the figure: 1-electric driver, 11-drive motor, 12-leading screw, 13-supporting base; The 2-bearing device, 21-lead screw pair, 22-guide sleeve, 23-piston rod; The 3-cylinder barrel, the 31-cylinder head; 4-sealing gland/fluid-tight; 5-enters the gas/liquid hole; 6-airtight chamber; The 7-bearing; The 8-coupling; 9-pitches ear; 10-rotary seal.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing the utility model mode of execution is described in further detail.
As shown in Figure 1, the utility model provides a kind of hybrid electrical push rod, comprising: cylinder barrel 3, bearing device 2 and electric driver 1; Bearing device 2 wherein is arranged in the cylinder barrel 3; Electric driver 1 is arranged at an end of cylinder barrel 3, and the two is fixedly connected with, and is used for driving bearing device 2 and moves up and down along the axis of cylinder barrel 3; One airtight chamber 6 also is set in the cylinder barrel 3, and airtight chamber 6 is enclosed to connect by bearing device 2, electric driver 1 and cylinder barrel 3 and forms, form on the cylinder barrel 3 be connected with the pneumatic/hydraulic power source enter gas/liquid hole 5, enter gas/liquid hole 5 and be connected with airtight chamber 6; Bearing device 2 is connected with electric driver respectively and 3 airtight/liquid-tight connections of cylinder barrel.
Described bearing device 2 wherein comprises:
Piston rod 23 is arranged in the cylinder barrel 3, and it is hollow structure, and the one end stretches out cylinder barrel 3 ends, and forms closed end;
Described electric driver 1 comprises: drive motor 11, leading screw 12 and supporting base 13, one end of supporting base 13 is connected with drive motor 11, one end of its other end and cylinder barrel 3 is tightly connected, one end of leading screw 12 is connected by coupling 8 with drive motor 11, the upper-end surface of supporting base 13 is provided with a groove, rotary seal 10 is set in groove, on supporting base 13, also be provided with simultaneously bearing 7, leading screw 12 runs through supporting base 13 successively, bearing 7, lead screw pair 21 also extends in the cavity of piston rod 23, form motive sealing by rotary seal 10 between leading screw 12 and the supporting base 13 secondary, leading screw 12 forms transmission with lead screw pair 22 and supports; Airtight chamber 6 is enclosed to connect by supporting base 13, lead screw pair 21, guide sleeve 22 and cylinder barrel 3 and forms.
The preferred leading screw 12 of the utility model is ball screw, and lead screw pair 21 is the ball screw pair that is complementary with leading screw 12.
Also can adopt guide sleeve 22 to be fixed in lead screw pair 21 near an end of supporting base 13, guide sleeve 22 is one-body molded with lead screw pair 21.
Can also adopt guide sleeve 22 to be placed on the middle part of lead screw pair 21, guide sleeve 22 and lead screw pair 21 are connected by thread seal, or the two is fixed together, and as shown in Figure 2, guide sleeve 22 is fixed in the middle part of lead screw pair 21.
It below is concrete working principle.
The driving principle of electric pushrod part is consistent with traditional electric pushrod, provide moment of torsion to pass to ball screw 12 by coupling 8 by drive motor 11, thereby drive piston rod 23 and carry out straight reciprocating motion, mechanical property because of ball screw 12, in inlet hole 5 positions air inlet/liquid feed valve is set, pressed gas/liquid enters among the cylinder barrel 3 from here, form between sealing gland/fluid-tight 4 and the rotary seal 10 can dynamic operation the pneumatic/hydraulic Seal cage, therefore after passing into pressed gas/liquid, the active force and the electric torque that act on the whole push rod carry out combined support, opposite with load direction owing to pressed gas/flow direction after supporting, can significantly reduce the axial carrying of ball screw 12, thereby promote the performance of whole mechanical structure.
Above-mentioned the utility model embodiment sequence number does not represent embodiment's quality just to description.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. a hybrid electrical push rod comprises: cylinder barrel (3);
Bearing device (2) is arranged in the described cylinder barrel (3); And
Electric driver (1) is arranged at an end of described cylinder barrel (3), and the two is fixedly connected with, and is used for driving described bearing device (2) and moves up and down along the axis of described cylinder barrel (3);
It is characterized in that, one airtight chamber (6) also is set in the described cylinder barrel (3), described airtight chamber (6) is enclosed to connect by described bearing device (2), electric driver (1) and cylinder barrel (3) and forms, form on the described cylinder barrel (3) be connected with the pneumatic/hydraulic power source enter gas/liquid hole (5), describedly enter gas/liquid hole (5) and be connected with described airtight chamber (6), described bearing device (2) is connected 1 with electric driver)/liquid-tight be connected airtight with described cylinder barrel (3) respectively.
2. hybrid electrical push rod according to claim 1 is characterized in that,
Described bearing device (2) comprising:
Piston rod (23) is arranged in the described cylinder barrel (3), and it is hollow structure, and the one end stretches out described cylinder barrel (3) end, and forms closed end;
Lead screw pair (21) is fixed the lower end with described piston rod (23);
Guide sleeve (22) is fixedly connected with described lead screw pair (21), and its periphery is provided with sealing gland/fluid-tight (4), and/liquid-tight be connected airtight with described cylinder barrel (3) inwall.
3. hybrid electrical push rod according to claim 2 is characterized in that,
Described electric driver (1) comprising:
Drive motor (11), leading screw (12) and supporting base (13), one end of described supporting base (13) is fixedly connected with described drive motor (11), its the other end is airtight with an end of described cylinder barrel (3)/liquid-tight the connection, one end of described leading screw (12) is connected with described drive motor (11), and form rotary seal with described supporting base (13), the other end of described leading screw (12) runs through described lead screw pair (21) and extends in the cavity of described piston rod (23), and described leading screw (12) forms transmission with described lead screw pair (21) and supports; Described airtight chamber (6) is enclosed to connect by described supporting base (13), lead screw pair (21), guide sleeve (22) and cylinder barrel (3) and forms.
4. according to claim 2 or 3 described hybrid electrical push rods, it is characterized in that,
Described leading screw (12) is ball screw, and described lead screw pair (21) is ball screw pair.
5. hybrid electrical push rod according to claim 4 is characterized in that,
Described guide sleeve (22) is fixed in the connecting end of described lead screw pair (21) and described piston rod (23), and described guide sleeve (22) is one-body molded with described lead screw pair (21).
6. hybrid electrical push rod according to claim 4 is characterized in that,
Described guide sleeve (22) is fixed in described lead screw pair (21) near an end of described supporting base (13), and described guide sleeve (22) is one-body molded with described lead screw pair (21).
7. hybrid electrical push rod according to claim 4 is characterized in that,
Described guide sleeve (22) is placed on the middle part of described lead screw pair (21), and described guide sleeve (22) is connected by thread seal with described lead screw pair (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422472 CN202833919U (en) | 2012-08-23 | 2012-08-23 | Bi-power electric drive pusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422472 CN202833919U (en) | 2012-08-23 | 2012-08-23 | Bi-power electric drive pusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833919U true CN202833919U (en) | 2013-03-27 |
Family
ID=47945628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220422472 Withdrawn - After Issue CN202833919U (en) | 2012-08-23 | 2012-08-23 | Bi-power electric drive pusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832737A (en) * | 2012-08-23 | 2012-12-19 | 北京摩诘创新科技有限公司 | Dual-power electric push rod |
| CN106195023A (en) * | 2016-07-27 | 2016-12-07 | 张晓春 | Clearance sealing structure and bearing |
-
2012
- 2012-08-23 CN CN 201220422472 patent/CN202833919U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832737A (en) * | 2012-08-23 | 2012-12-19 | 北京摩诘创新科技有限公司 | Dual-power electric push rod |
| CN102832737B (en) * | 2012-08-23 | 2014-08-13 | 北京摩诘创新科技股份有限公司 | Dual-power electric push rod |
| CN106195023A (en) * | 2016-07-27 | 2016-12-07 | 张晓春 | Clearance sealing structure and bearing |
| CN106195023B (en) * | 2016-07-27 | 2019-04-19 | 张晓春 | Clearance sealing structure and bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20140813 |
|
| RGAV | Abandon patent right to avoid regrant |