CN218151984U - Anti-unbalance-loading heavy-load electric cylinder - Google Patents
Anti-unbalance-loading heavy-load electric cylinder Download PDFInfo
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- CN218151984U CN218151984U CN202222312395.1U CN202222312395U CN218151984U CN 218151984 U CN218151984 U CN 218151984U CN 202222312395 U CN202222312395 U CN 202222312395U CN 218151984 U CN218151984 U CN 218151984U
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Abstract
The utility model discloses an anti heavy load electric cylinder that partially carries, including piston rod (5), ball pivot axis (7.1) and ball pivot body (7.2), piston rod (5) top fixed connection ball pivot axis (7.1) one end, the inside interior sphere recess of offering cooperation ball pivot axis (7.1) of ball pivot body (7.2), the ball pivot axis (7.1) other end is located interior sphere, the biggest inner diameter of interior sphere recess is greater than the outer diameter of ball pivot axis (7.1), the opening part diameter of interior sphere recess is less than the outer diameter of ball pivot axis (7.1). The spherical hinge middle shaft (7.1) is spherical. The ball socket comprises an end cover (6), wherein a ball socket matched with the outer surface of a ball hinge body (7.2) is arranged in the end cover (6), and the ball hinge body (7.2) is rotatably arranged in the ball socket. The utility model can still keep the high working precision and normal work of the electric cylinder under the working condition that the arbitrary stroke of the piston rod bears larger unbalance loading; the utility model discloses can bear the unbalance loading at the arbitrary stroke homoenergetic of piston rod.
Description
Technical Field
The utility model relates to an anti electronic jar of heavy load of unbalance loading belongs to the anti electronic jar of heavy load of unbalance loading ball pivot technical field.
Background
With the development of science and technology, the performance of the motor is continuously improved, the production cost is continuously reduced, and the electric cylinder taking the motor as a driving element is more and more widely applied.
The electric cylinder drives the screw rod to rotate by the motor, the rotary motion is converted into linear motion of the piston rod through the screw rod nut, and the motor can accurately control the running speed, position and thrust of the electric cylinder to realize high-precision linear motion.
But current electronic jar product in the market is subject to the lead screw, and when the external load was too big and have the unbalance loading in the course of the work, the effort can direct action on the lead screw, causes the damage of lead screw thread to reduce electronic jar's work precision. An electric cylinder product solves the problem through a ball head connecting structure penetrating through a lead screw, but the electric cylinder product can only bear larger unbalance load during large stroke, is limited by the guidance of an end cover during small stroke of a piston rod and cannot bear larger unbalance load force, and further cannot realize a larger unbalance load angle; also there is electronic jar product to solve this problem through external ball pivot foot dish, but this structure is not convenient for install, and the axial installation size is long, and the structure is compact enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provide an anti-unbalance loading heavy-load electric cylinder, which can still keep the high working precision and normal work of the electric cylinder under the working condition that any stroke of a piston rod bears larger unbalance loading; the utility model discloses can bear the unbalance loading at the arbitrary stroke homoenergetic of piston rod.
In order to achieve the above object, the present invention provides an anti-unbalance loading heavy-duty electric cylinder, which comprises a piston rod, a spherical hinge center shaft and a spherical hinge body, wherein the top end of the piston rod is fixedly connected with one end of the spherical hinge center shaft, an inner spherical surface groove matched with the spherical hinge center shaft is arranged inside the spherical hinge body, the other end of the spherical hinge center shaft is arranged in the inner spherical surface, the maximum inner diameter of the inner spherical surface groove is larger than the outer diameter of the spherical hinge center shaft, and the diameter of the opening of the inner spherical surface groove is smaller than the outer diameter of the spherical hinge center shaft.
Preferably, the spherical hinge central shaft is spherical in shape.
Preferably, the end cover is included, a ball socket matched with the outer surface of the spherical hinge body is arranged in the end cover, and the spherical hinge body is rotatably arranged in the ball socket.
Preferentially, the oil cup is embedded in the spherical hinge body, a first channel is formed in the spherical hinge body, and the oil cup is communicated with the inner spherical surface groove through the first channel; the oil cup is filled with butter through the first channel to lubricate an inner spherical groove between the central shaft of the spherical hinge and the spherical hinge body.
Preferably, a second channel is formed in the spherical hinge body, the oil cup is communicated with a hole between the piston rod and the spherical hinge body through the second channel, and grease is injected into the oil cup through the second channel to lubricate the hole between the piston rod and the spherical hinge body.
Preferably, the third channel in the spherical hinge body, the oil cup is communicated with the ball socket through the third channel, the oil cup is filled with butter through the third channel, and the ball socket between the end cover and the spherical hinge body is lubricated.
Preferably, including motor and transmission and reduction gears, the output shaft fixed connection transmission of motor and reduction gears's input, transmission and reduction gears's output fixed connection piston rod bottom.
Preferably, the device comprises a cylinder bottom and a cylinder body, wherein the transmission and reduction mechanism is fixedly connected with the bottom end of the cylinder body through the cylinder bottom, the piston rod is positioned in the cylinder body, and the end cover is fixedly connected with the top end of the cylinder body.
The utility model discloses the beneficial effect who reaches:
the utility model provides a heavy-load electric cylinder which can bear larger unbalance loading, and can still keep the high working precision and normal work of the electric cylinder under the working condition that any stroke of a piston rod bears larger unbalance loading; the utility model discloses can bear the unbalance loading at the arbitrary stroke of piston rod all, because the spherical hinge mechanism is in the top of piston rod in the utility model, can bear the unbalance loading at the arbitrary stroke of piston rod, the spherical hinge body is two sphere structures simultaneously, sphere and spherical hinge axis cooperation in the spherical hinge, the outer sphere of spherical hinge body and the ball socket cooperation of piston rod, the spherical hinge body can realize the rotation of large angle between spherical hinge axis and the ball socket of piston rod, so can bear the size and the angle of off-set load and all great, with low costs, can use in the occasion of major push-pull power and unbalance loading;
the utility model discloses well spherical hinge body and spherical hinge axis are in the syntropy, compact structure, and the spherical hinge body in the ball socket, after injecting the butter in the ball socket, the spherical hinge body rocks negligible simple to operate.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a cross-sectional view of the middle ball-and-socket joint mechanism of the present invention.
Reference sign means, 1-motor; 2-a transmission and reduction mechanism; 3-cylinder bottom; 4-cylinder body; 5-a piston rod; 6-end cover; 7-a spherical hinge mechanism; 7.1-spherical hinge middle shaft, 7.2-spherical hinge body; 7.3-oil cup.
Detailed Description
The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, etc. in a certain specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if a description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the heavy-duty electric cylinder with offset load resistance comprises a piston rod 5, a spherical hinge central shaft 7.1 and a spherical hinge body 7.2, wherein the top end of the piston rod 5 is fixedly connected with one end of the spherical hinge central shaft 7.1, an inner spherical surface groove matched with the spherical hinge central shaft 7.1 is formed in the spherical hinge body 7.2, the other end of the spherical hinge central shaft 7.1 is positioned in the inner spherical surface, the maximum inner diameter of the inner spherical surface groove is larger than the outer diameter of the spherical hinge central shaft 7.1, and the diameter of the opening of the inner spherical surface groove is smaller than the outer diameter of the spherical hinge central shaft 7.1.
Further, as shown in fig. 2, the ball-hinge central axis 7.1 in this embodiment is a sphere.
Further, the end cover 6 is included in the present embodiment, a ball socket matching with the outer surface of the spherical hinge body 7.2 is arranged in the end cover 6, and the spherical hinge body 7.2 is rotatably arranged in the ball socket.
Further, the oil cup 7.3 is included in the embodiment, the oil cup 7.3 is embedded in the spherical hinge body 7.2, a first channel is formed in the spherical hinge body 7.2, and the oil cup 7.3 is communicated with the inner spherical groove through the first channel; grease is injected into the oil cup 7.3 through the first channel, and an inner spherical surface groove between the central shaft 7.1 of the spherical hinge and the spherical hinge body 7.2 is lubricated.
Further, in this embodiment, a second channel is opened in the spherical hinge body 7.2, the oil cup 7.3 is communicated with the gap between the piston rod 5 and the spherical hinge body 7.2 through the second channel, and grease is injected into the oil cup 7.3 through the second channel to lubricate the gap between the piston rod 5 and the spherical hinge body 7.2.
Further, in the third channel in the spherical hinge body 7.2, the oil cup 7.3 is communicated with the ball socket through the third channel, and the oil cup 7.3 is filled with grease through the third channel to lubricate the ball socket between the end cover 6 and the spherical hinge body 7.2.
Further, including motor 1 and transmission and reduction gears 2 in this embodiment, the output shaft fixed connection of motor 1 drives and reduction gears 2's input, and drive and reduction gears 2's output fixed connection piston rod 5 bottom.
Preferably, the transmission and reduction mechanism 2 comprises a cylinder bottom 3 and a cylinder body 4, the cylinder bottom 3 is fixedly connected with the bottom end of the cylinder body 4, the piston rod 5 is positioned in the cylinder body 4, and the end cover 6 is fixedly connected with the top end of the cylinder body 4.
The right end of the spherical hinge body 7.2 is a hemisphere, and the outer surface of the left end of the spherical hinge body 7.2 can be reformed into a proper shape according to actual requirements.
The motor 1, the transmission and speed reduction mechanism 2, the cylinder bottom 3, the cylinder body 4, the piston rod 5, the lubricating end cover 6 and the oil cup 7.3 are available in various types in the prior art, and those skilled in the art can select an appropriate type according to actual requirements, and the embodiments are not illustrated one by one.
The spherical hinge body 7.2 is of a double-spherical-surface structure, the inner spherical surface of the spherical hinge body 7.2 is matched with the spherical hinge central shaft 7.1, and the outer spherical surface of the spherical hinge body 7.2 is matched with a ball socket; the spherical hinge body 7.2 is rotatably arranged between the end cover 6 and the spherical hinge central shaft 7.1, the spherical hinge body 7.2 has a compact structure between the spherical hinge central shaft 7.1 and the ball socket, and large-angle rotation can be realized.
An oil cup 7.3 is arranged on the spherical hinge body 7.2, 3 oil passages are drilled from the oil cup 7.3, the first oil passage leads to the spherical surface rotating matching surface of the spherical hinge body 7.2 and the spherical hinge middle shaft 7.1, the second oil passage leads to a hole (an opening of an inner spherical groove) between the piston rod 5 and the spherical hinge body 7.2, the third oil passage is communicated with a ball socket, and oil is fed through the oil cup 7.3 to realize the omnibearing lubrication of the spherical hinge body 7.2.
When the piston rod 5 of the electric cylinder is in a fully-retracted state, the main spherical hinge body 7.2 of the spherical hinge structure 7 is positioned on the outer side of the cylinder body 4, namely, the electric cylinder still has side load resisting capacity during the stroke of the piston rod 0.
The utility model discloses in because spherical hinge mechanism 7 is in the top of piston rod, can bear the unbalance loading at the arbitrary stroke of piston rod, spherical hinge body 7.2 is two spherical structures simultaneously, sphere and the cooperation of spherical hinge axis 7.1 in the spherical hinge body 7.2, the cooperation of spherical hinge body 7.2 ectosphere and piston rod 5's ball socket, spherical hinge body 7.2 can realize the rotation of wide-angle between the ball socket of spherical hinge axis 7.1 and piston rod 5, so the size and the angle that can bear the biasing load are all great.
The utility model discloses well spherical hinge body 7.2 is in the syntropy with spherical hinge axis 7.1, compact structure, and spherical hinge body 7.2 between the ball socket of spherical hinge axis 7.1 and piston rod 5, pours into the butter back into, and spherical hinge body 7.2 rocks lessly, simple to operate.
The utility model discloses possess following characteristics: 1. the eccentric load can be borne at any stroke of the piston rod; 2. can bear bias load of large value and angle; 3. the structure is simple and reliable, and the cost is low; 4. can be applied to the occasions with heavy push-pull force and unbalance loading.
The utility model discloses in, also can adopt other alternative: 1. the central shaft 7.1 of the spherical hinge is connected with the end cover 6 by other connection forms; 2. the position and the angle of the oil cup hole are changed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (8)
1. An anti-unbalance-load heavy-load electric cylinder is characterized by comprising a piston rod (5), a spherical hinge middle shaft (7.1) and a spherical hinge body (7.2), wherein the top end of the piston rod (5) is fixedly connected with one end of the spherical hinge middle shaft (7.1), an inner spherical surface groove matched with the spherical hinge middle shaft (7.1) is formed in the spherical hinge body (7.2), the other end of the spherical hinge middle shaft (7.1) is located in an inner spherical surface, the maximum inner diameter of the inner spherical surface groove is larger than the outer diameter of the spherical hinge middle shaft (7.1), and the diameter of an opening of the inner spherical surface groove is smaller than the outer diameter of the spherical hinge middle shaft (7.1).
2. The electric cylinder with heavy load of claim 1,
the spherical hinge middle shaft (7.1) is spherical.
3. The electric cylinder with heavy load of claim 1,
the ball socket comprises an end cover (6), wherein a ball socket matched with the outer surface of a ball hinge body (7.2) is arranged in the end cover (6), and the ball hinge body (7.2) is rotatably arranged in the ball socket.
4. The electric cylinder for heavy load of claim 3,
the oil cup comprises an oil cup (7.3), wherein the oil cup (7.3) is embedded in a spherical hinge body (7.2), a first channel is arranged in the spherical hinge body (7.2), and the oil cup (7.3) is communicated with an inner spherical surface groove through the first channel; grease is injected into the oil cup (7.3) through the first channel, and an inner spherical groove between the central shaft (7.1) of the spherical hinge and the spherical hinge body (7.2) is lubricated.
5. The electric cylinder with heavy load of claim 4, wherein,
a second channel is arranged in the spherical hinge body (7.2), the oil cup (7.3) is communicated with a gap between the piston rod (5) and the spherical hinge body (7.2) through the second channel, and grease is injected into the oil cup (7.3) through the second channel to lubricate the gap between the piston rod (5) and the spherical hinge body (7.2).
6. The electric cylinder with heavy load of claim 4, wherein,
and a third channel in the spherical hinge body (7.2), the oil cup (7.3) is communicated with the ball socket through the third channel, and the oil cup (7.3) is filled with butter through the third channel to lubricate the ball socket between the end cover (6) and the spherical hinge body (7.2).
7. The electric cylinder with heavy load of claim 1,
the device comprises a motor (1) and a transmission and speed reduction mechanism (2), wherein an output shaft of the motor (1) is fixedly connected with an input end of the transmission and speed reduction mechanism (2), and an output end of the transmission and speed reduction mechanism (2) is fixedly connected with the bottom end of a piston rod (5).
8. The electric cylinder for heavy load of claim 7,
the cylinder comprises a cylinder bottom (3) and a cylinder body (4), wherein a transmission and speed reduction mechanism (2) is fixedly connected with the bottom end of the cylinder body (4) through the cylinder bottom (3), a piston rod (5) is positioned in the cylinder body (4), and an end cover (6) is fixedly connected with the top end of the cylinder body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222312395.1U CN218151984U (en) | 2022-08-30 | 2022-08-30 | Anti-unbalance-loading heavy-load electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222312395.1U CN218151984U (en) | 2022-08-30 | 2022-08-30 | Anti-unbalance-loading heavy-load electric cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218151984U true CN218151984U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222312395.1U Active CN218151984U (en) | 2022-08-30 | 2022-08-30 | Anti-unbalance-loading heavy-load electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218151984U (en) |
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2022
- 2022-08-30 CN CN202222312395.1U patent/CN218151984U/en active Active
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