CN211296454U - Push rod electric cylinder - Google Patents
Push rod electric cylinder Download PDFInfo
- Publication number
- CN211296454U CN211296454U CN202020204263.5U CN202020204263U CN211296454U CN 211296454 U CN211296454 U CN 211296454U CN 202020204263 U CN202020204263 U CN 202020204263U CN 211296454 U CN211296454 U CN 211296454U
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- push rod
- cover plate
- gear
- rotating shaft
- box body
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- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a push rod electric cylinder, which comprises a base, a push rod mechanism, a first driving mechanism and a second driving mechanism, wherein the first driving mechanism and the second driving mechanism drive the push rod mechanism; the base comprises a box body with an upper opening and a first cover plate for plugging the upper opening of the box body, the lower end of the screw rod penetrates through the first cover plate and is pressed on a bottom plate of the box body, the lower end of the sleeve is fixed on the upper surface of the first cover plate, the upper end of the sleeve is plugged with a second cover plate, and the second cover plate is provided with a guide hole for the push rod to penetrate through; the second actuating mechanism includes brake motor and can dismantle the pivot of being connected with brake motor, the pivot is connected with the screw rod transmission, the pivot is installed on first apron. The utility model discloses can reach the release distance of manual adjustment push rod, have the function of switching single motor drive and bi-motor drive again.
Description
Technical Field
The utility model belongs to the technical field of electric putter equipment, especially, relate to a but manual regulation's bi-motor push rod electricity jar.
Background
The push rod electric cylinder is a commonly used electric push rod device, and mainly uses a motor to drive a lead screw to rotate through a transmission mechanism, so that a nut makes linear motion along the lead screw, and further drives a sleeve connected with the nut to move, thereby realizing the function of a push rod.
The existing push rod electric cylinder is only driven by one motor, and the applicable thrust range is limited.
The existing push rod electric cylinder lacks the function of manually adjusting the push-out distance of the push rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, provide a push rod electric cylinder, can reach the release distance of manual adjustment push rod, have again and switch single motor drive and bi-motor drive's function.
In order to solve the technical problem, the utility model discloses a technical scheme is: a push rod electric cylinder comprises a base, a push rod mechanism, a first driving mechanism and a second driving mechanism, wherein the first driving mechanism and the second driving mechanism drive the push rod mechanism; the base comprises a box body with an upper opening and a first cover plate for plugging the upper opening of the box body, the lower end of the screw rod penetrates through the first cover plate and is pressed on a bottom plate of the box body, the lower end of the sleeve is fixed on the upper surface of the first cover plate, the upper end of the sleeve is plugged with a second cover plate, and the second cover plate is provided with a guide hole for the push rod to penetrate through; the first driving mechanism comprises a non-braking motor, and the non-braking motor is in transmission connection with the screw; the second actuating mechanism includes brake motor and can dismantle the pivot of being connected with brake motor, the pivot is connected with the screw rod transmission, the pivot is installed on first apron.
Above-mentioned push rod electric cylinder, non-brake motor lays in the box, lay first gear on non-brake motor's the output shaft, the screw rod is installed the second gear on being located the inside part of box, first gear and second gear meshing.
In the push rod electric cylinder, the brake motor is arranged in the box body, the lower end of the rotating shaft is positioned in the box body and is right above the output shaft of the brake motor, the lower end of the rotating shaft is detachably connected with the upper end of the brake motor, the upper end of the rotating shaft penetrates through the first cover plate and extends out of the box body, a second gear is arranged on the part of the screw rod positioned in the box body, a third gear is arranged on the part of the rotating shaft positioned in the box body, and the third gear is meshed with the second gear; and a supporting mechanism for supporting the rotating shaft is arranged on the first cover plate.
In the push rod electric cylinder, the lower end of the rotating shaft is in threaded connection with the upper end of the brake motor; the supporting mechanism comprises a first thrust bearing and a mounting seat, the mounting seat and the first thrust bearing are coaxially sleeved on a rotating shaft, a shaft shoulder is arranged on the rotating shaft and pressed at the upper end of the first thrust bearing, the lower end of the first thrust bearing is mounted on the mounting seat, guide rods are vertically distributed on two sides of the rotating shaft respectively, the lower end of each guide rod is fixed on a first cover plate, a guide hole for the guide rod to penetrate through is formed in the mounting seat, and the guide rod penetrates through the guide hole; a spring is supported between the mounting seat and the upper surface of the first cover plate; the height difference between the upper surface of the third gear and the upper surface of the second gear is larger than the clear distance between the bottom surface of the mounting seat and the upper surface of the first cover plate; the third gear upper surface is higher than the second gear upper surface.
In the push rod electric cylinder, the number of the springs is the same as that of the guide rods, and one spring is sleeved on one guide rod.
Above-mentioned push rod electric cylinder, install ball bearing on the mount pad, ball bearing cover is established on the pivot.
Above-mentioned push rod electric cylinder, install the second footstep bearing on the mount pad, the second footstep bearing cover is established in the pivot and is pressed on the shaft shoulder.
Above-mentioned push rod electric cylinder, the upper end of guide arm stretches out to the hole upside from the guiding hole on the mount pad, the stopper is installed to the part that the guide arm stretches out to the guiding hole upside, the stopper is pressed on the mount pad.
Above-mentioned push rod electric cylinder, stretch out to the mount pad upper end outside from the mount pad in the upper end of pivot, the handle is installed to the upper end of pivot.
Above-mentioned push rod electric cylinder, lay the protective housing that protects supporting mechanism and pivot upper end on the first apron, the upper portion of protective housing is detachable third apron.
Compared with the prior art, the utility model has the following advantage: the utility model discloses be single motor drive state when pivot and brake motor output shaft are in the off-state, only through non-brake motor drive to when non-brake motor outage, the rotatory pivot drive screw of accessible rotates. When the rotating shaft and the output shaft of the brake motor are in a connected state, the rotating shaft and the output shaft of the brake motor are in a double-motor driving state, the brake motor and the non-brake motor are started simultaneously, the two motors can drive the screw rod to rotate simultaneously, and the push rod is further pushed.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is an enlarged view of fig. 1 at B.
Fig. 4 is an enlarged view of fig. 1 at C.
Fig. 5 is an enlarged view of fig. 1 at D.
Description of reference numerals:
1-screw rod; 2, a nut; 3, a push rod;
4, sleeving a sleeve; 5-a first cover plate; 6, a box body;
7-a second cover plate; 8-linear bearings; 9-non-braking motor;
10-brake motor; 11-a rotating shaft; 12 — a first gear;
13 — a second gear; 14-third gear; 15 — a first thrust bearing;
16-a mounting seat; 17-shaft shoulder; 18-a guide rod;
19-a spring; 20-a ball bearing; 21 — a second thrust bearing;
22-a limiting block; 23-a handle; 24-protective shell;
25-a third cover plate; 26 — third thrust bearing.
Detailed Description
As shown in fig. 1 to 5, a push rod electric cylinder comprises a base, a push rod mechanism, a first driving mechanism and a second driving mechanism, wherein the first driving mechanism and the second driving mechanism drive the push rod mechanism, the push rod mechanism comprises a screw rod 1 vertically arranged, a nut 2 in threaded fit with the screw rod 1, push rods 3 vertically arranged on the nut 2, and a sleeve 4 sleeved on the outer ring of the screw rod 1, the number of the push rods 3 is two, the two push rods 3 are symmetrically arranged on two sides of the screw rod 1, the lower ends of the two push rods 3 are both fixed on the upper end surface of the nut 2, and the upper ends of the two push rods 3 jointly support a bearing block; the thread on the screw rod 1 is a self-locking thread, preferably a trapezoidal thread, and the included angle between the slope surface of the trapezoidal thread and the horizontal plane is 20-40 degrees; the base comprises a box body 6 with an upper opening and a first cover plate 5 for plugging the upper opening of the box body 6, the lower end of the screw rod 1 penetrates through the first cover plate 5 and is pressed on a bottom plate of the box body 6, the lower end of the sleeve 4 is fixed on the upper surface of the first cover plate 5, the upper end of the sleeve 4 is plugged with a second cover plate 7, a guide hole for the push rod 3 to penetrate through is formed in the second cover plate 7, and a linear bearing 8 is installed at the guide hole; the upper end of the screw rod 1 is sleeved with a cylindrical roller bearing, and the cylindrical roller bearing is arranged on the second cover plate 7; the first driving mechanism comprises a non-brake motor 9, and the non-brake motor 9 is in transmission connection with the screw rod 1; the second actuating mechanism includes brake motor 10, can dismantle the pivot 11 of being connected with brake motor 10, pivot 11 is connected with 1 transmission of screw rod, pivot 11 is installed on first apron 5.
The brake motor 10 refers to a motor whose output shaft cannot rotate after power failure, and the non-brake motor 9 refers to a motor whose output shaft can rotate after power failure.
A third thrust bearing 26 is supported between the lower end of the screw rod 1 and the bottom plate of the box body 6.
The non-brake motor 9 is arranged in the box body 6, a first gear 12 is arranged on an output shaft of the non-brake motor 9, a second gear 13 is arranged on a part, located inside the box body 6, of the screw rod 1, and the first gear 12 is meshed with the second gear 13.
The brake motor 10 is arranged in the box body 6, the lower end of the rotating shaft 11 is positioned in the box body 6 and is right above an output shaft of the brake motor 10, the lower end of the rotating shaft 11 is detachably connected with the upper end of the brake motor 10, the upper end of the rotating shaft 11 penetrates through the first cover plate 5 and extends out of the box body 6, a third gear 14 is arranged on the part of the rotating shaft 11 positioned in the box body 6, and the third gear 14 is meshed with the second gear 13; and a supporting mechanism for supporting the rotating shaft 11 is distributed on the first cover plate 5.
The lower end of the rotating shaft 11 is in threaded connection with the upper end of the brake motor 10; the supporting mechanism comprises a first thrust bearing 15 and a mounting seat 16, the mounting seat 16 and the first thrust bearing 15 are coaxially sleeved on a rotating shaft 11, a shaft shoulder 17 is arranged on the rotating shaft 11, the shaft shoulder 17 is pressed at the upper end of the first thrust bearing 15, the lower end of the first thrust bearing 15 is mounted on the mounting seat 16, guide rods 18 are vertically distributed on two sides of the rotating shaft 11 respectively, the lower end of each guide rod 18 is fixed on the first cover plate 5, a guide hole for the guide rod 18 to penetrate through is formed in the mounting seat 16, and the guide rods 18 penetrate through the guide holes; a spring 19 is supported between the mounting seat 16 and the upper surface of the first cover plate 5; the height difference between the upper surface of the third gear 14 and the upper surface of the second gear 13 is greater than the clear distance between the bottom surface of the mounting seat 16 and the upper surface of the first cover plate 5; the upper surface of the third gear 14 is higher than the upper surface of the second gear 13. When the mounting 16 is pressed down into engagement with the first cover plate 5, the third gear 14 and the second gear 13 remain engaged.
The number of the springs 19 is the same as that of the guide rods 18, and one spring 19 is sleeved on one guide rod 18.
The mounting seat 16 is provided with a ball bearing 20, and the ball bearing 20 is sleeved on the rotating shaft 11.
And a second thrust bearing 21 is arranged on the mounting seat 16, and the second thrust bearing 21 is sleeved on the rotating shaft 11 and pressed on the shaft shoulder 17.
The upper end of the guide rod 18 extends out of the guide hole on the mounting seat 16 to the upper side of the hole, the part of the guide rod 18 extending out of the upper side of the guide hole is provided with a limiting block 22, and the limiting block 22 is pressed on the mounting seat 16.
The upper end of pivot 11 stretches out to the mount pad 16 upper end outside from mount pad 16, handle 23 is installed to the upper end of pivot 11.
A protective shell 24 for protecting the upper ends of the supporting mechanism and the rotating shaft 11 is arranged on the first cover plate 5, and a detachable third cover plate 25 is arranged on the upper portion of the protective shell 24.
The utility model discloses during the use, when pushing away the light load, the lower extreme of pivot 11 is in non-connection state with the upper end of brake motor 10 output shaft, open first actuating mechanism's non-brake motor 9 this moment, first gear 12 drives second gear 13 and rotates, further first gear 12 drives screw rod 1 and rotates, drive nut 2 is linear motion along screw rod 1, make push rod 3 stretch out from sleeve 4 and push away the light load, after the top is pushed away and is accomplished, because of the screw thread on the screw rod 1 is self-locking thread, make nut 2 can not follow screw rod 1 downstream when receiving pressure. When the extension length of the push rod 3 needs to be finely adjusted, the rotating shaft 11 can be rotated through the handle 23, and the third gear 14 further drives the second gear 13 to rotate, so that the screw rod 1 rotates, and the fine adjustment of the extension length of the push rod 3 is realized.
When pushing a large load, the handle 23 is pressed down to connect the lower end of the rotating shaft 11 with the output shaft of the brake motor 10, then the rotating shaft 11 is rotated reversely to connect the rotating shaft 11 with the output shaft of the brake motor 10 in a threaded manner, when the rotating shaft 11 is rotated reversely, the push rod 3 moves downwards and the mounting seat 16 compresses the spring 19 to move downwards, after the rotating shaft 11 is connected with the output shaft of the brake motor 10 in a threaded manner, the non-brake motor 9 and the brake motor 10 are started simultaneously, the second gear 13 on the screw rod 1 is driven by the first gear 12 and the third gear 14 to rotate simultaneously, the third gear 14 is driven by the brake motor 10 to rotate forwards, so that the two motors push the large load, after pushing is completed, when power is off, the output shaft of the brake motor 10 stops rotating, the first gear 12, the second gear 13 and the third gear 14 continue to rotate under inertia, because the third gear 14 rotates forwards under inertia, the lower end of the rotating shaft 11 is in threaded connection with the output shaft of the brake motor 10 and begins to lose efficacy, after the rotating shaft 11 rotates for a certain number of turns, the lower end of the rotating shaft 11 is in connection failure with the output shaft of the brake motor 10, the rotating shaft 11 moves upwards under the action of the spring 19 and is disconnected with the output shaft of the brake motor 10, and the rotating shaft 11 resets.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (10)
1. A push rod electric cylinder is characterized in that: the push rod mechanism comprises a screw rod vertically arranged, a nut in threaded fit with the screw rod, a push rod vertically arranged on the nut and a sleeve sleeved on the outer ring of the screw rod, wherein the screw thread on the screw rod is a self-locking screw thread; the base comprises a box body with an upper opening and a first cover plate for plugging the upper opening of the box body, the lower end of the screw rod penetrates through the first cover plate and is pressed on a bottom plate of the box body, the lower end of the sleeve is fixed on the upper surface of the first cover plate, the upper end of the sleeve is plugged with a second cover plate, and the second cover plate is provided with a guide hole for the push rod to penetrate through; the first driving mechanism comprises a non-braking motor, and the non-braking motor is in transmission connection with the screw; the second actuating mechanism includes brake motor and can dismantle the pivot of being connected with brake motor, the pivot is connected with the screw rod transmission, the pivot is installed on first apron.
2. A push rod electric cylinder according to claim 1, characterized in that: the non-brake motor is arranged in the box body, a first gear is arranged on an output shaft of the non-brake motor, a second gear is arranged on a part, located inside the box body, of the screw rod, and the first gear is meshed with the second gear.
3. A push rod electric cylinder according to claim 1, characterized in that: the brake motor is arranged in the box body, the lower end of the rotating shaft is positioned in the box body and is right above an output shaft of the brake motor, the lower end of the rotating shaft is detachably connected with the upper end of the brake motor, the upper end of the rotating shaft penetrates through the first cover plate and extends out of the box body, a second gear is arranged on the part of the screw rod positioned in the box body, a third gear is arranged on the part of the rotating shaft positioned in the box body, and the third gear is meshed with the second gear; and a supporting mechanism for supporting the rotating shaft is arranged on the first cover plate.
4. A push rod electric cylinder according to claim 3, characterized in that: the lower end of the rotating shaft is in threaded connection with the upper end of the brake motor; the supporting mechanism comprises a first thrust bearing and a mounting seat, the mounting seat and the first thrust bearing are coaxially sleeved on a rotating shaft, a shaft shoulder is arranged on the rotating shaft and pressed at the upper end of the first thrust bearing, the lower end of the first thrust bearing is mounted on the mounting seat, guide rods are vertically distributed on two sides of the rotating shaft respectively, the lower end of each guide rod is fixed on a first cover plate, a guide hole for the guide rod to penetrate through is formed in the mounting seat, and the guide rod penetrates through the guide hole; a spring is supported between the mounting seat and the upper surface of the first cover plate; the height difference between the upper surface of the third gear and the upper surface of the second gear is larger than the clear distance between the bottom surface of the mounting seat and the upper surface of the first cover plate; the third gear upper surface is higher than the second gear upper surface.
5. A push rod electric cylinder according to claim 4, characterized in that: the number of the springs is the same as that of the guide rods, and one spring is sleeved on one guide rod.
6. A push rod electric cylinder according to claim 4, characterized in that: and the mounting seat is provided with a ball bearing, and the ball bearing is sleeved on the rotating shaft.
7. A push rod electric cylinder according to claim 4, characterized in that: and a second thrust bearing is arranged on the mounting seat, sleeved on the rotating shaft and pressed on the shaft shoulder.
8. A push rod electric cylinder according to claim 4, characterized in that: the upper end of the guide rod extends out of the upper side of the hole from the guide hole in the mounting seat, a limiting block is mounted on the part, extending out of the upper side of the guide hole, of the guide rod, and the limiting block is pressed on the mounting seat.
9. A push rod electric cylinder according to claim 4, characterized in that: the upper end of pivot stretches out to the mount pad upper end outside from the mount pad, the handle is installed to the upper end of pivot.
10. A push rod electric cylinder according to claim 4, characterized in that: the first cover plate is provided with a protective shell for protecting the upper ends of the supporting mechanism and the rotating shaft, and the upper portion of the protective shell is a detachable third cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204263.5U CN211296454U (en) | 2020-02-25 | 2020-02-25 | Push rod electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204263.5U CN211296454U (en) | 2020-02-25 | 2020-02-25 | Push rod electric cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211296454U true CN211296454U (en) | 2020-08-18 |
Family
ID=72020086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020204263.5U Expired - Fee Related CN211296454U (en) | 2020-02-25 | 2020-02-25 | Push rod electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211296454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541390A (en) * | 2021-07-01 | 2021-10-22 | 脉冲电子（东莞）有限公司 | Speed-reducing linear synchronous motor |
| CN115683529A (en) * | 2023-01-03 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
-
2020
- 2020-02-25 CN CN202020204263.5U patent/CN211296454U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113541390A (en) * | 2021-07-01 | 2021-10-22 | 脉冲电子（东莞）有限公司 | Speed-reducing linear synchronous motor |
| CN115683529A (en) * | 2023-01-03 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
| CN115683529B (en) * | 2023-01-03 | 2023-08-25 | 中国空气动力研究与发展中心低速空气动力研究所 | Pantograph contact force test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |