CN216959560U - Multistage straight rod type electric push rod convenient to install - Google Patents
Multistage straight rod type electric push rod convenient to install Download PDFInfo
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- CN216959560U CN216959560U CN202220590490.5U CN202220590490U CN216959560U CN 216959560 U CN216959560 U CN 216959560U CN 202220590490 U CN202220590490 U CN 202220590490U CN 216959560 U CN216959560 U CN 216959560U
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Abstract
The utility model relates to a multistage straight rod type electric push rod convenient to install, which comprises a shell, a motor, a transmission mechanism and a multistage push rod mechanism, wherein the shell is provided with a push rod body; the multistage push rod mechanism comprises a first screw rod, a second screw rod, a first-stage sleeve, a second-stage sleeve, a first pushing block and a second pushing block, and is characterized in that a third pushing block is arranged between the first pushing block and the second pushing block; one end of the third pushing block is in threaded connection with the first pushing block, the other end of the third pushing block is in threaded connection with the primary sleeve, and the end part of the secondary sleeve is in threaded connection with the end part of the second pushing block; the end part of the second screw rod extends towards the first pushing block, a first bearing is arranged between the second screw rod and the first pushing block, and a second bearing is arranged between the third pushing block and the second screw rod. The beneficial effects of the utility model are as follows: the utility model provides a multistage straight rod formula electric putter easy to assemble solves the difficult problem of equipment among the prior art.
Description
Technical Field
The utility model relates to the technical field of electric push rods, in particular to a multistage straight rod type electric push rod convenient to install.
Background
The electric push rod, also known as linear pusher, is a power driving device mainly composed of push rod and control device, can convert the rotary motion of motor into the linear reciprocating motion of push rod, and can be used as executing machine in various simple or complex technological processes to implement remote control, centralized control or automatic control.
The utility model discloses a utility model with publication number "CN 211089340U" discloses a multistage electric putter of one-way, this electric putter includes casing, motor, gear mechanism, multistage push rod mechanism 4, and wherein multistage push rod mechanism 4 comprises first pivot 41, first promotion piece 42, one-level sleeve 43, driving ring 44, second pivot 45, antifriction bearing 46, second promotion piece 47, second grade sleeve 48, spacing shell 49, and the structure is accomplished in the equipment of multistage push rod mechanism 4 as shown in figure 3. The utility model discloses a file provides one kind and pushes away the journey longer, the electric putter that transmission efficiency is higher.
However, the electric push rod has the following defects: the multistage push rod mechanism 4 is difficult to assemble, and the production efficiency is greatly influenced. During assembly, the first pushing block 42 and the first-stage sleeve 43 need to be screwed, and the first-stage sleeve 43 is tubular and has a closed outer wall, so that the second pushing block 47, the rolling bearing 46 and the second rotating shaft 45 need to be installed before the first pushing block 42 and the first-stage sleeve 43 are assembled, and then the first pushing block 42 and the first-stage sleeve 43 need to be screwed. The operation is complicated, and the requirement on the proficiency of operators is high; in the assembling process, the second pushing block 47 is difficult to be installed in place, and the whole body is easy to loosen, so that the motion stability of the electric push rod is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a multistage straight rod type electric push rod which is convenient to install and solves the problem of difficult assembly in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a multi-stage straight rod type electric push rod convenient to install comprises a shell and a motor arranged in the shell, wherein the motor is linked with a transmission mechanism, and the transmission mechanism is linked with a multi-stage push rod mechanism; the multistage push rod mechanism comprises a first screw rod, a second screw rod, a primary sleeve and a secondary sleeve; the second screw rod is sleeved on the periphery of the first screw rod, the secondary sleeve is sleeved on the periphery of the second screw rod, and the primary sleeve is sleeved on the periphery of the secondary sleeve; one end of the first screw rod is linked with the transmission mechanism, and the other end of the first screw rod is relatively fixedly connected with the end part of the second screw rod; the first screw rod is in thread linkage with a first pushing block at the periphery, and the second screw rod is in thread linkage with a second pushing block at the periphery; one end of the third pushing block is in threaded connection with the first pushing block, the other end of the third pushing block is in threaded connection with the primary sleeve, and the end part of the secondary sleeve is in threaded connection with the end part of the second pushing block; the end part of the second screw rod extends towards the first pushing block, a first bearing is arranged between the second screw rod and the first pushing block, and a second bearing is arranged between the third pushing block and the second screw rod; the multistage push rod mechanism further comprises an outer tube sleeved on the periphery of the first pushing block and the one-level sleeve, a straight sliding column is arranged on one side of the first pushing block, and a clamping position which can be in sliding fit with the straight sliding column is arranged on the inner wall of the outer tube.
By adopting the technical scheme, the multi-stage push rod mechanism is improved, the assembly is convenient, and the production efficiency is improved; mainly by additionally arranging a third pushing block which is respectively in threaded connection with the first pushing block and the primary sleeve, when assembling, the second pushing block and the first-stage sleeve do not need to be assembled firstly, and the installation can be sequentially carried out, for example, the first pushing block and the first screw rod can be assembled firstly, then the first bearing and the second screw rod are assembled, then the second bearing and the third pushing block are assembled with the first pushing block and the second screw rod respectively, then the second pushing block and the first-stage sleeve are assembled, finally the outer pipe is sleeved on the peripheries of the first pushing block and the first-stage sleeve, the whole process is well-ordered, the operation is simple, only the first pushing block needs to be installed and positioned, the subsequent parts can be assembled in a matching way according to the installation position of the first pushing block, the requirement on the proficiency of operators is low, and hands can be easily operated, so that the production efficiency is improved, and the problem that the assembly is difficult in the prior art is solved.
Foretell multistage straight rod formula electric putter easy to assemble can further set up to: the transmission mechanism comprises a coupler arranged in the shell, one end of the coupler is linked with the motor, the other end of the coupler is linked with the first lead screw, at least one group of bearing sleeves are arranged on the side portion of the coupler, the peripheries of the first lead screws are sleeved with the bearing sleeves, a third bearing is arranged between the coupler and the shell, and a fourth bearing is arranged between the bearing sleeves and the shell.
By adopting the technical scheme, the coupler is selected as a main transmission component to replace a gear transmission form in the prior art, the gear does not need to be processed, the production period is further shortened, the production efficiency is improved, the coupler can meet the requirement of the force transmission stability of the electric push rod, and the cost is low.
Foretell multistage straight rod formula electric putter easy to assemble can further set up to: the shell comprises an upper cover and a lower cover detachably connected with the upper cover.
By adopting the technical scheme, the shell is divided into the upper cover and the lower cover which are detachable, so that the motor and the transmission mechanism can be conveniently assembled, and the maintenance is convenient.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is an exploded view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of an assembled state of the outer tube and the first pushing block according to the embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a conventional power putter.
Notation of the reference numerals: the multi-stage push rod mechanism comprises a motor 1, a transmission mechanism 2, a multi-stage push rod mechanism 3, a first screw rod 31, a second screw rod 32, a first-stage sleeve 33, a second-stage sleeve 34, a first pushing block 35, a straight sliding column 351, a second pushing block 36, a third pushing block 37, an outer tube 38, a clamping position 381, a first bearing 4, a second bearing 5, a third bearing 6, a fourth bearing 7, an upper cover 8, a lower cover 9, a coupler 21 and a bearing sleeve 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the multistage straight rod type electric push rod convenient to mount comprises a shell and a motor 1 arranged in the shell, wherein the motor 1 is linked with a transmission mechanism 2, and the transmission mechanism 2 is linked with a multistage push rod mechanism 3; the multistage push rod mechanism 3 comprises a first screw rod 31, a second screw rod 32, a first-stage sleeve 33 and a second-stage sleeve 34; the second screw rod 32 is sleeved on the periphery of the first screw rod 31, the secondary sleeve 34 is sleeved on the periphery of the second screw rod 32, and the primary sleeve 33 is sleeved on the periphery of the secondary sleeve 34; one end of the first screw rod 31 is linked with the transmission mechanism 2, and the other end of the first screw rod is relatively and fixedly connected with the end part of the second screw rod 32; a first pushing block 35 is linked with the outer peripheral thread of the first screw rod 31, a second pushing block 36 is linked with the outer peripheral thread of the second screw rod 32, and a third pushing block 37 is arranged between the first pushing block 35 and the second pushing block 36; one end of the third pushing block 37 is in threaded connection with the first pushing block 35, the other end of the third pushing block is in threaded connection with the primary sleeve 33, and the end of the secondary sleeve 34 is in threaded connection with the end of the second pushing block 36; the end part of the second screw rod 32 extends towards the first pushing block 35, a first bearing 4 is arranged between the second screw rod 32 and the first pushing block 35, and a second bearing 5 is arranged between the third pushing block 37 and the second screw rod 32; the multistage push rod mechanism 3 further comprises an outer tube 38 sleeved on the periphery of the first pushing block 35 and the first-stage sleeve 33, a straight sliding column 351 is arranged on one side of the first pushing block 35, and a clamping position 381 which can be in sliding fit with the straight sliding column 351 is arranged on the inner wall of the outer tube 38. The multistage push rod mechanism 3 is improved, so that the assembly is convenient, and the production efficiency is improved; mainly by adding the third promotes piece 37 to respectively with first promotion piece 35, one-level sleeve 33 threaded connection.
The transmission mechanism 2 comprises a coupler 21 installed in the shell, one end of the coupler 21 is linked with the motor 1, the other end of the coupler 21 is linked with the first lead screw 31, at least one group of bearing sleeves 22 are arranged on the lateral portion of the coupler 21, the peripheries of the first lead screws 31 are sleeved with the bearing sleeves 22, a third bearing 6 is arranged between the coupler 21 and the shell, and a fourth bearing 7 is arranged between the bearing sleeves 22 and the shell. The coupler 21 is selected as a main transmission part to replace a gear transmission form in the prior art, gears do not need to be machined, the production period is further shortened, the production efficiency is improved, the coupler 21 can meet the requirement of the power transmission stability of the electric push rod, and the cost is low.
The shell comprises an upper cover 8 and a lower cover 9 detachably connected with the upper cover 8. The casing is divided into the upper cover 8 and the lower cover 9 which can be separated, so that the motor 1 and the transmission mechanism 2 can be assembled conveniently, and the maintenance is convenient.
When the above-mentioned embodiment is assembled, it is not necessary to assemble the second pushing block 36 and the first-stage sleeve 33 first, the installation can be sequentially carried out, for example, the first pushing block 35 and the first screw rod 31 can be assembled firstly, then the first bearing 4 and the second screw rod 32 are assembled, then the second bearing 5 and the third pushing block 37 are assembled with the first pushing block 35 and the second screw rod 32 respectively, then the second pushing rear-view sleeve 34 and the first-stage sleeve 33 are assembled, finally the outer tube 38 is sleeved on the peripheries of the first pushing block 35 and the first-stage sleeve 33, the whole process is well-ordered, the operation is simple, only the first pushing block 35 needs to be installed and positioned, the subsequent parts can be assembled in a matching way according to the installation position of the first pushing block 35, the requirement on the proficiency of operators is low, and hands can be easily operated, so that the production efficiency is improved, and the problem that the assembly is difficult in the prior art is solved.
The working principle of the specific embodiment is as follows: the motor 1 raises the transmission mechanism 2 to drive the first screw rod 31 to rotate, and the second screw rod 32 and the first screw rod 31 rotate synchronously because the end parts of the first screw rod 31 and the second screw rod 32 are relatively and fixedly connected; meanwhile, the first pushing block 35 can only do linear motion along the axis of the first screw rod 31 under the limitation of the position limit 381, so the first pushing block 35 drives the third pushing block 37 to do linear motion along the axis of the first screw rod 31, and the third pushing block 37 drives the first-stage sleeve 33 to push out; meanwhile, the second pushing block 36 is driven by the second lead screw 32 to move linearly along the axial direction of the second lead screw 32, so as to push the secondary sleeve 34 out.
Claims (3)
1. A multi-stage straight rod type electric push rod convenient to install comprises a shell and a motor arranged in the shell, wherein the motor is linked with a transmission mechanism, and the transmission mechanism is linked with a multi-stage push rod mechanism;
the multistage push rod mechanism comprises a first screw rod, a second screw rod, a primary sleeve and a secondary sleeve;
the second screw rod is sleeved on the periphery of the first screw rod, the secondary sleeve is sleeved on the periphery of the second screw rod, and the primary sleeve is sleeved on the periphery of the secondary sleeve;
one end of the first screw rod is linked with the transmission mechanism, and the other end of the first screw rod is relatively fixedly connected with the end part of the second screw rod;
first lead screw periphery screw thread linkage has first promotion piece, second lead screw periphery screw thread linkage has the second to promote piece, its characterized in that: a third pushing block is arranged between the first pushing block and the second pushing block;
one end of the third pushing block is in threaded connection with the first pushing block, the other end of the third pushing block is in threaded connection with the primary sleeve, and the end part of the secondary sleeve is in threaded connection with the end part of the second pushing block; the end part of the second screw rod extends towards the first pushing block, a first bearing is arranged between the second screw rod and the first pushing block, and a second bearing is arranged between the third pushing block and the second screw rod;
the multistage push rod mechanism further comprises an outer tube sleeved on the periphery of the first pushing block and the one-level sleeve, a straight sliding column is arranged on one side of the first pushing block, and a clamping position which can be in sliding fit with the straight sliding column is arranged on the inner wall of the outer tube.
2. The multi-stage straight rod type electric push rod convenient to install according to claim 1, is characterized in that: the transmission mechanism comprises a coupler arranged in the shell, one end of the coupler is linked with the motor, the other end of the coupler is linked with the first lead screw, at least one group of bearing sleeves are arranged on the side portion of the coupler, the peripheries of the first lead screws are sleeved with the bearing sleeves, a third bearing is arranged between the coupler and the shell, and a fourth bearing is arranged between the bearing sleeves and the shell.
3. The easy-to-install multistage straight rod type electric push rod according to claim 1 or 2, characterized in that: the shell comprises an upper cover and a lower cover detachably connected with the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590490.5U CN216959560U (en) | 2022-03-17 | 2022-03-17 | Multistage straight rod type electric push rod convenient to install |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590490.5U CN216959560U (en) | 2022-03-17 | 2022-03-17 | Multistage straight rod type electric push rod convenient to install |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216959560U true CN216959560U (en) | 2022-07-12 |
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ID=82297472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220590490.5U Active CN216959560U (en) | 2022-03-17 | 2022-03-17 | Multistage straight rod type electric push rod convenient to install |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216959560U (en) |
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2022
- 2022-03-17 CN CN202220590490.5U patent/CN216959560U/en active Active
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