CN210380507U

CN210380507U - Improved electric push rod

Info

Publication number: CN210380507U
Application number: CN201921845647.9U
Authority: CN
Inventors: 李家祥
Original assignee: Guangzhou Hezhicheng Metal Products Co Ltd
Current assignee: Guangzhou Hezhicheng Metal Products Co Ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-04-21
Anticipated expiration: 2029-10-30

Abstract

The utility model provides a modified electric putter relates to mechanical equipment technical field, including the cylinder, be provided with hollow push rod, nut and lead screw in the cylinder, the lead screw is installed in the hollow push rod, nut threaded connection is in on the lead screw, hollow push rod's lower extreme with the nut rigid coupling, the one end of cylinder is provided with the motor, the tip of lead screw with the motor is connected, hollow push rod's tip is provided with first joint bearing, the below of motor is provided with second joint bearing. The utility model discloses an useful part is, installs the external equipment after, enables the motion of external equipment and has a plurality of degrees of freedom, has better flexibility.

Description

Improved electric push rod

Technical Field

The utility model belongs to the technical field of mechanical equipment technique and specifically relates to a modified electric putter.

Background

The electric push rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control. The common electric push rod is in a worm gear transmission mode: the worm on the motor gear drives the worm wheel to rotate, so that the small screw rod in the worm wheel axially moves, the connecting plate drives the limiting rod to correspondingly axially move, when the required stroke is reached, the limiting block is adjusted to press down the travel switch to power off, and the motor stops running (positive and negative control is the same).

However, after the existing electric push rod is connected with external equipment, the external equipment can only be driven to move on a plane, and the movement of the external equipment cannot be realized, so that the electric push rod has multiple degrees of freedom and certain limitation.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the shortcoming among the prior art provides a modified electric putter, installs the external equipment after, enables the motion of external equipment and has a plurality of degrees of freedom, has better flexibility.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the improved electric push rod comprises a cylinder barrel, wherein a hollow push rod, a nut and a lead screw are arranged in the cylinder barrel, the lead screw is installed in the hollow push rod, the nut is in threaded connection with the lead screw, the lower end of the hollow push rod is fixedly connected with the nut, a motor is arranged at one end of the cylinder barrel, the end portion of the lead screw is connected with the motor, a first joint bearing is arranged at the end portion of the hollow push rod, and a second joint bearing is arranged below the motor.

Preferably, a motor barrel is further arranged outside the motor, an inner side plate and an outer side plate are respectively arranged on two sides of the motor barrel, the inner side plate is fixedly connected to the end portion of the cylinder barrel, bosses are arranged on opposite surfaces of the inner side plate and the outer side plate, the motor barrel is sleeved on the bosses, the inner side plate is provided with bolt holes, and through holes for bolts to penetrate through are reserved in positions, corresponding to the bolt holes, of the outer side plate.

Preferably, a threaded hole is provided in a middle portion of the outer panel, and the second joint bearing is coupled in the threaded hole.

Preferably, a reinforcing rod is arranged outside the cylinder barrel, and the arrangement direction of the reinforcing rod is consistent with the length direction of the cylinder barrel.

Preferably, the hollow push rod comprises an assembly head, the assembly head is fixedly connected with the nut, a channel is arranged on the assembly head and penetrates through the assembly head, and the extending direction of the channel is consistent with the moving direction of the hollow push rod.

Preferably, the boss is a circular boss, and the diameter size of the circular boss is matched with the aperture size of the inner wall of the motor barrel.

Preferably, a heat dissipation hole and a wiring hole are reserved on the motor barrel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a tip at hollow push rod is provided with first joint bearing, is provided with second joint bearing in the below of motor, and joint bearing is prior art, is a spherical sliding bearing, can be in arbitrary angle rotation swing during the motion, after this electric putter installs external equipment, enables external equipment's motion and has a plurality of degrees of freedom, after satisfying the most basic stretching out and retrieving the motion, can also satisfy the variety of multiple mechanical occasion motion at arbitrary angle rotation swing.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention, and do not constitute a limitation on the invention, in which:

FIG. 1 is a front elevational view of the present power putter;

FIG. 2 is a schematic view of the structure of the electric putter with the electric barrel removed;

FIG. 3 is a schematic view of a first structure of the electric putter with the cylinder removed;

FIG. 4 is a schematic view of a second structure of the electric putter removing the cylinder;

fig. 5 is an enlarged view of a circled portion a in fig. 4.

In the figure: 1-cylinder barrel, 2-hollow push rod, 3-nut, 4-motor, 5-first joint bearing, 6-second joint bearing, 7-motor barrel, 8-inner side plate, 9-outer side plate, 10-lug boss, 11-bolt hole, 12-perforation, 13-reinforcing rod, 14-assembly head, 15-channel, 16-heat dissipation hole and 17-wiring hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 4, an improved electric push rod comprises a cylinder 1, a hollow push rod 2, a nut 3 and a screw rod (not shown, but in the prior art, arranged in the hollow push rod 2) are arranged in the cylinder 1, the screw rod is installed in the hollow push rod 2, the nut 3 is connected to the screw rod by a thread, the lower end of the hollow push rod 2 can be fixed with the nut 3 into a whole by a screw or bolt connection, one end of the cylinder 1 is provided with a motor 4, the end of the screw rod is connected with the motor 4, further, the end of the screw rod can also be connected with a rotating shaft of the motor 4 by a coupler, the coupler has the functions of buffering, vibration damping and improving the dynamic performance of a shaft system, as can be known from the principle of the electric push rod, after the motor 4 rotates, the screw rod is driven to rotate, so as to drive the nut 3 and the hollow push rod, the motor 4 is a servo motor, and the servo motor has the advantages of high precision, good high-speed performance, strong overload resistance and the like. The electric push rod has the advantages that the end part of the hollow push rod 2 is provided with the first joint bearing 5, the second joint bearing 6 is arranged below the motor 4, the joint bearing is in the prior art and is a spherical sliding bearing, and the electric push rod can rotate and swing at any angle during movement. After the electric push rod is installed on external equipment, the motion of the external equipment can have multiple degrees of freedom (namely, the rotation can be realized on a plane), and the electric push rod can rotate and swing at any angle after the most basic stretching and retracting motion is met, so that the diversity of motion of various mechanical occasions is met.

The motor 4 is also provided with a motor barrel 7, the motor barrel 7 has a protection effect on the motor 4, the motor barrel 7 is reserved with a heat dissipation hole 16 and a wiring hole 17, the heat dissipation hole 16 is used for dissipating heat of the motor 4, the wiring hole 17 is used for installing a circuit, two sides of the motor barrel 7 are respectively provided with an inner side plate 8 and an outer side plate 9, the inner side plate 8 is fixedly connected to the end part of the cylinder barrel 1 through bolts, the opposite surfaces of the inner side plate 8 and the outer side plate 9 are both provided with a boss 10, the motor barrel 7 is sleeved on the boss 10, the boss 10 is a circular boss, the diameter size of the circular boss is matched with the inner wall aperture size of the motor barrel 7, the inner side plate 8, the outer side plate 9 and the motor barrel 7 are facilitated to be tightly assembled, the inner side plate 8 is provided with bolt holes 11, the outer side plate 9 is reserved with through holes 12 for bolts to penetrate through, screws of the bolts enter from, the inner plate 8, the outer plate 9 and the motor case 7 can be fixed. A threaded hole (not shown) is formed in the middle of the outer plate 9, and the second joint bearing 6 is screwed and fixed in the threaded hole in a threaded manner, in this embodiment, the first joint bearing 5 can be fixed at the end of the hollow push rod 2 in a welding manner, which is prior art and will not be described herein.

The reinforcing rods 13 are arranged outside the cylinder barrel 1, the arrangement direction of the reinforcing rods 13 is consistent with the length direction of the cylinder barrel 1, the number of the reinforcing rods 13 is 4, and the reinforcing rods are circumferentially distributed around the cylinder barrel 1 to play a role in supporting and reinforcing the structure.

The hollow push rod 2 comprises an assembly head 14, the assembly head 14 is fixedly connected with the nut 3 into a whole through screws or welding, the electric push rod is further characterized in that a channel 15 is arranged on the assembly head 14, the channel 15 penetrates through the assembly head 14, the extending direction of the channel 15 is consistent with the moving direction of the hollow push rod 2, as can be seen from fig. 5, the nut 3 does not block the channel 15, the channel 15 is kept unblocked, and the channel 15 has the effect that the assembly head 14 moves along with the hollow push rod 2 in the extending and recovering processes, at the moment, in the cylinder barrel 1, gas at two ends of the assembly head 14 can circulate through the channel 15, so that the high pressure caused by the extrusion of the assembly head 14 on the gas in the moving process is avoided, a large amount of heat is generated, and the service life is shortened; in addition, in the use process, the engine oil in the cylinder barrel 1 can flow to the bottom end of the cylinder barrel 1 under the action of gravity, and when the engine oil works, the engine oil positioned at the bottom of the inner wall of the cylinder barrel 1 can also flow back to the upper part of the hollow push rod 2 from the channel 15 in impact extrusion when the assembling head 14 moves, so that the hollow push rod 2 is kept lubricated, and the engine oil can flow in the extrusion process, thereby avoiding the oil leakage phenomenon like the traditional electric push rod, and because the engine oil can flow back to the upper part of the hollow push rod 2 for lubrication, the frequent oil filling like the traditional electric push rod is not needed, the additional maintenance is not needed, the use is easy, and the structure is good.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements and the like can be made in the technical solutions of the foregoing embodiments or in some technical features of the foregoing embodiments, but all modifications, equivalents, improvements and the like within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The improved electric push rod is characterized by comprising a cylinder barrel, wherein a hollow push rod, a nut and a lead screw are arranged in the cylinder barrel, the lead screw is installed in the hollow push rod, the nut is in threaded connection with the lead screw, the lower end of the hollow push rod is fixedly connected with the nut, a motor is arranged at one end of the cylinder barrel, the end of the lead screw is connected with the motor, a first joint bearing is arranged at the end of the hollow push rod, and a second joint bearing is arranged below the motor.

2. The improved electric push rod according to claim 1, wherein a motor barrel is further arranged outside the motor, an inner side plate and an outer side plate are respectively arranged on two sides of the motor barrel, the inner side plate is fixedly connected to the end portion of the cylinder barrel, bosses are arranged on opposite surfaces of the inner side plate and the outer side plate, the motor barrel is sleeved on the bosses, the inner side plate is provided with bolt holes, and through holes for bolts to penetrate through are reserved on the outer side plate at positions corresponding to the bolt holes.

3. An improved power putter as in claim 2, wherein said outer plate is provided with a threaded hole in the middle thereof, said second spherical plain bearing being attached in said threaded hole.

4. The improved electric push rod as claimed in claim 1, wherein a reinforcing rod is arranged outside the cylinder barrel, and the direction of the reinforcing rod is consistent with the length direction of the cylinder barrel.

5. The improved electric push rod as claimed in any one of claims 1 to 4, wherein the hollow push rod includes an assembly head, the assembly head is fixedly connected to the nut, a channel is disposed on the assembly head, the channel penetrates through the assembly head, and the extending direction of the channel is consistent with the moving direction of the hollow push rod.

6. An improved power putter as claimed in claim 2 wherein said boss is a circular boss having a diameter sized to match the diameter of the inner wall bore of said motor barrel.

7. The improved electric putter as claimed in claim 2, wherein heat dissipation holes and wiring holes are reserved on the motor barrel.