CN218152215U - Split type nut push rod structure of electronic jar - Google Patents
Split type nut push rod structure of electronic jar Download PDFInfo
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- CN218152215U CN218152215U CN202222066819.0U CN202222066819U CN218152215U CN 218152215 U CN218152215 U CN 218152215U CN 202222066819 U CN202222066819 U CN 202222066819U CN 218152215 U CN218152215 U CN 218152215U
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- push rod
- nut
- ball nut
- ball
- electronic jar
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Abstract
The utility model belongs to electronic jar field specifically discloses a split type nut push rod structure of electronic jar. Need the material many in order to solve current structure, the handling capacity is many, the problem that thermal treatment process is complicated, the utility model discloses a ball nut, push rod and location parallel key have outer location tang, connection external screw thread and keyway on the ball nut, have corresponding interior location tang, connection internal thread and keyway on the push rod, ball nut and push rod combination to threaded connection, location tang radial positioning, location parallel key can transmit the moment of torsion, prevent ball nut's push rod relative rotation. The required installation space of this structure is little, and ball nut and push rod can be different materials, different thermal treatment processes, and the equipment is assembled after processing alone, for integral type nut push rod, the work load in the reducible manufacturing process reduces the heat treatment degree of difficulty.
Description
Technical Field
The utility model relates to a split type nut push rod field of electronic jar, concretely relates to split type nut push rod structure of electronic jar.
Background
The electric cylinder is equipment for converting the rotary motion of the motor into linear motion, the motor drives the ball screw to rotate after speed reduction transmission, the ball nut converts the rotary motion of the ball screw into linear motion, and thrust and pulling force are output through the push rod.
Because the structural dimension and the installation space of the electric cylinder are smaller, the ball nut and the push rod are generally designed into a part, namely, the push rod nut is of an integrated structure. The integrated structure is compact, but has the following defects:
1 because the ball nut needs high hardness, the material of the integrated push rod nut is high-hardness bearing steel, the bearing steel only has solid bar stock and does not have a seamless pipe, and the push rod is in a thin-wall pipe structure, so the solid bar stock needs to be processed into the thin-wall pipe, the processing amount is large, and the material is wasted.
2 because ball nut hardness is high, wear-resisting, push rod hardness is moderate, shock resistance, so the integration push rod nut will adopt different heat treatment methods, carries out heat treatment in segments, will protect the push rod segment during nut segment heat treatment, and the heat treatment degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a split type nut push rod structure, the required installation space of this structure is little, and ball nut and push rod can be respectively with different materials, different thermal treatment processes, and the equipment is assembled after processing alone, and the work load in the reducible manufacturing process reduces the heat treatment degree of difficulty.
The technical scheme of the utility model is that, an electronic jar split type nut push rod structure, including ball nut, push rod, ball nut is last to be equipped with outer location tang, connection external screw thread and nut keyway, be equipped with interior location tang, connection internal thread and push rod keyway on the push rod, ball nut's outer location tang agrees with each other with the interior location tang on the push rod, the connection external screw thread on the ball nut is connected with the connection internal thread on the push rod;
the push rod key groove and the nut key groove are fixed through the positioning flat key;
and the ball nut is also provided with a steel ball reverser.
The positioning flat keys and the steel ball reverser are arranged on the circumference of the ball nut in a staggered way by 90 degrees.
The push rod is of a hollow thin-wall tube structure.
The ball nut and the push rod are designed in a separated mode.
The utility model discloses following beneficial effect has:
the utility model discloses an independent processing of ball nut and push rod and thermal treatment, ball nut's material is bearing steel bar, reaches very high surface hardness after the thermal treatment. The push rod is made of a medium carbon alloy steel seamless steel pipe, the processing amount is small, and the push rod has good impact toughness after heat treatment. Compared with an integrated nut push rod structure, the structure is less in material consumption, less in processing amount and simple in heat treatment process.
Drawings
Fig. 1 is the structural schematic diagram of the split nut push rod of the present invention.
Fig. 2 is a top view (in cross section) of fig. 1.
Fig. 3 is a plan view (profile) of fig. 1.
Fig. 4 is a schematic structural view of the utility model ball nut.
Fig. 5 is a schematic structural view of the utility model push rod.
Description of the reference numerals: 1-ball nut, 2-positioning flat key, 3-push rod, 4-steel ball reverser, 5-wear-resisting ring, 6-screw, 7-external positioning spigot, 8-connecting external thread, 9-nut keyway, 10-internal positioning spigot, 11-push rod keyway, 12-connecting internal thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below.
As shown in fig. 1-5: 1. a split nut push rod structure of an electric cylinder comprises a ball nut 1 and a push rod 3, wherein an outer positioning spigot 7, a connecting external thread 8 and a nut key groove 9 are arranged on the ball nut 1, an inner positioning spigot 10, a connecting internal thread 12 and a push rod key groove 11 are arranged on the push rod 3, the outer positioning spigot 7 of the ball nut 1 and the inner positioning spigot 10 on the push rod 3 are mutually matched, and the connecting external thread 8 on the ball nut 1 is connected with the connecting internal thread 12 on the push rod 3;
the push rod key groove 11 and the nut key groove 9 are fixed through the positioning flat key 2;
the ball nut 1 is also provided with a steel ball reverser 4.
The positioning flat key 2 and the steel ball reverser 4 are arranged on the circumference of the ball nut 1 in a staggered way by 90 degrees.
The push rod 3 is of a hollow thin-wall tube structure.
The ball nut 1 and the push rod 3 are designed in a separated mode.
The utility model relates to a split type nut push rod structure of electronic jar through improving integral type nut push rod structure, falls into ball nut 1 and push rod 3 to whole part, and the available different materials of two parts are processed alone and the thermal treatment back, through connecting thread and location tang equipment, and location flat key 2 prevents changeing, reaches the function the same with integral type nut push rod, and the work load in the reducible manufacturing process simultaneously, save material reduces the heat treatment degree of difficulty.
And (3) assembling: the utility model relates to a split type nut push rod structure of electronic jar comprises ball nut 1, push rod 3 and location parallel key 2. Wherein the ball nut 1 is provided with an external positioning spigot 7, a connecting external thread 8 and a nut key groove 9, as shown in fig. 4. Push rod 3 is opened has interior location tang 10, connects internal thread 12 and push rod keyway 11, and the correspondence is assembled the back, and the cooperation of the interior location tang 10 on outer location tang 7 on the ball nut 1 and the push rod 3 guarantees the axiality of subassembly, and the connection external screw thread 8 on the ball nut 1 is connected with the connection internal thread 12 on the push rod 3, but transmission thrust or pulling force. The positioning flat key 2 can bear torque and prevent the ball nut 1 and the push rod 3 from rotating relatively.
The positioning flat key 2 and the steel ball reverser 4 are arranged on the circumference of the ball nut 1 in a staggered 90-degree mode, so that the radial size is reduced, and the space is saved.
The positioning flat key 2 is fixed on the ball nut 1 through a screw 6, so that the positioning flat key 2 can be prevented from moving due to vibration and the like in the using process.
The ball nut 1 can be separately processed by bearing steel, and the surface hardness is high after surface quenching heat treatment. The push rod 3 is a hollow thin-wall pipe structure, is formed by processing seamless steel pipe materials, has small processing amount, saves materials, and has good impact toughness after quenching and tempering heat treatment.
The technical characteristics of the utility model:
1. the ball nut 1 is provided with an outer positioning spigot 7, a connecting external thread 8 and a nut key groove 9, and the push rod 3 is provided with a corresponding inner positioning spigot 10, a connecting internal thread 12 and a push rod key groove 11;
2. the ball nut 1 and the push rod 3 are combined and connected through threads, the positioning spigot is radially positioned, the coaxiality of the ball nut 1 and the push rod 3 can be ensured, the positioning flat key 2 can transmit torque, and the connecting threads can transmit thrust or pull force;
3. the ball nut 1 can be separately processed by bearing steel, and the surface hardness is high after surface quenching heat treatment. The push rod 3 is formed by processing seamless steel tube materials, the processing amount is small, the materials are saved, and the impact toughness is good after quenching and tempering heat treatment.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides a split type nut push rod structure of electronic jar, includes ball nut (1), push rod (3), its characterized in that: an outer positioning spigot (7), a connecting external thread (8) and a nut key groove (9) are arranged on the ball nut (1), an inner positioning spigot (10), a connecting internal thread (12) and a push rod key groove (11) are arranged on the push rod (3), the outer positioning spigot (7) of the ball nut (1) and the inner positioning spigot (10) on the push rod (3) are mutually matched, and the connecting external thread (8) on the ball nut (1) is connected with the connecting internal thread (12) on the push rod (3);
the push rod key groove (11) and the nut key groove (9) are fixed through the positioning flat key (2);
the ball nut (1) is also provided with a steel ball reverser (4).
2. The split nut push rod structure of the electric cylinder as claimed in claim 1, wherein: the positioning flat key (2) and the steel ball reverser (4) are arranged on the circumference of the ball nut (1) in a staggered 90-degree manner.
3. The split nut push rod structure of the electric cylinder as claimed in claim 1, wherein: the push rod (3) is of a hollow thin-wall tube structure.
4. The split nut push rod structure of the electric cylinder as claimed in claim 1, wherein: the ball nut (1) and the push rod (3) are designed in a separated mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066819.0U CN218152215U (en) | 2022-08-08 | 2022-08-08 | Split type nut push rod structure of electronic jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222066819.0U CN218152215U (en) | 2022-08-08 | 2022-08-08 | Split type nut push rod structure of electronic jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218152215U true CN218152215U (en) | 2022-12-27 |
Family
ID=84600683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222066819.0U Active CN218152215U (en) | 2022-08-08 | 2022-08-08 | Split type nut push rod structure of electronic jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218152215U (en) |
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2022
- 2022-08-08 CN CN202222066819.0U patent/CN218152215U/en active Active
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