CN210087799U - Electric connecting bolt - Google Patents
Electric connecting bolt Download PDFInfo
- Publication number
- CN210087799U CN210087799U CN201920863976.XU CN201920863976U CN210087799U CN 210087799 U CN210087799 U CN 210087799U CN 201920863976 U CN201920863976 U CN 201920863976U CN 210087799 U CN210087799 U CN 210087799U
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- China
- Prior art keywords
- fixing sleeve
- spline
- connecting screw
- screw rod
- motor
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Abstract
The utility model discloses an electronic connecting bolt is provided with the internal thread that matches with connecting screw's external screw thread in first fixed sleeve, second fixed sleeve, and motor fixed mounting leans on rear end position department in first fixed sleeve, and the front end of connecting axle is provided with spline shape arch, is provided with the bar groove that the cross section is the spline form in the connecting screw, and spline shape arch stretches into the bar inslot and realizes connecting axle and connecting screw's splined connection, and the rear end of connecting axle links to each other with the motor. The spline-shaped protrusion and the strip-shaped groove are skillfully utilized to drive the connecting screw rod to rotate, so that the purpose of screwing the first fixing sleeve and the second fixing sleeve is achieved; the hidden fixed installation of the motor in the first fixed sleeve can be realized, and the external space is not occupied; the bolt does not need to be screwed manually, the bolt is particularly suitable for fastening the part with larger stress, the reliability is high, and the problem that the existing bolt is lost is effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of mechanical structure, concretely relates to electric bolt for connecting fastening.
Background
Bolts are widely used as common fasteners for connecting various parts. However, for some occasions with larger stress, the existing bolt connection has insufficient reliability. In particular, for some parts which are frequently assembled and disassembled, the disassembled bolt is easy to lose, and troubles are brought to installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric connecting bolt which is especially suitable for fastening the part with larger stress and has high reliability; meanwhile, the bolt does not need to be screwed manually, and the problem that the existing bolt is lost can be effectively avoided.
Therefore, the utility model discloses the technical scheme who adopts does: an electric connecting bolt comprises a first fixing sleeve, a second fixing sleeve, a motor, a connecting shaft and a connecting screw rod, wherein internal threads matched with external threads of the connecting screw rod are arranged in the first fixing sleeve and the second fixing sleeve; after the end of the first fixing sleeve and the end of the second fixing sleeve are attached and the axes of the first fixing sleeve and the second fixing sleeve are overlapped, the motor drives the connecting shaft to rotate, the connecting shaft drives the connecting screw to synchronously rotate, and meanwhile, the connecting screw moves axially until the connecting screw extends into the second fixing sleeve, so that the first fixing sleeve and the second fixing sleeve are tensioned together, and the spline-shaped protrusions move in the strip-shaped grooves in the process of moving axially.
Preferably, the front end and the rear end of the connecting screw rod are respectively provided with a baffle, and the baffle at the rear end is provided with an opening for the rod part of the connecting shaft to pass through.
Preferably, when the connecting screw rod is screwed in place, the thread screwing sections of the connecting screw rod and the first fixing sleeve are equal to those of the second fixing sleeve, so that the first fixing sleeve and the second fixing sleeve are balanced in stress.
Preferably, the second fixing sleeve is provided with an in-place sensor, and when the electric connecting bolt is loosened in the using process, the motor is automatically started until the electric connecting bolt is screwed in place; further improving the reliability of the connection.
Preferably, the spline-shaped protrusions are uniformly distributed at the front end of the connecting shaft in a circumferential manner, and the spline-shaped cross section of the strip-shaped groove is matched with the spline-shaped protrusions. The number of the spline-shaped protrusions is increased, and higher torque transmission efficiency is ensured.
Further preferably, the first fixing sleeve is welded in the first connecting body, the second fixing sleeve is welded in the second connecting body, and when the ends of the first fixing sleeve and the second fixing sleeve are attached and the axes of the first fixing sleeve and the second fixing sleeve are coincident, the end faces of the first connecting body and the second connecting body are attached together. Seamless hard connection of the two connecting bodies is realized.
The utility model has the advantages that: the spline-shaped protrusion and the strip-shaped groove are skillfully utilized to drive the connecting screw rod to rotate, so that the purpose of screwing the first fixing sleeve and the second fixing sleeve is achieved; the hidden fixed installation of the motor in the first fixed sleeve can be realized, and the external space is not occupied; the bolt does not need to be screwed manually, the bolt is particularly suitable for fastening the part with larger stress, the reliability is high, and the problem that the existing bolt is lost is effectively avoided.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 shows the state of the utility model before screwing.
Fig. 3 shows the state of the utility model after being screwed.
FIG. 4 is a cross-sectional view of a spline-shaped protrusion in a strip groove.
Fig. 5 shows the state of the first connecting body and the second connecting body connected by the present invention.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
referring to fig. 1-3, an electric connecting bolt is mainly composed of a first fixing sleeve 1, a second fixing sleeve 2, a motor 3, a connecting shaft 4 and a connecting screw rod 5.
Internal threads are arranged in the first fixing sleeve 1 and the second fixing sleeve 2, and the internal threads are matched with the external threads of the connecting screw rod 5.
The motor 3 is fixedly arranged in the first fixing sleeve 1 and is close to the rear end position. The front end of the connecting shaft 4 is provided with a spline-shaped bulge 4a, and the rod part of the connecting shaft 4 is a round rod. A strip-shaped groove 5a with a spline-shaped cross section is arranged in the connecting screw rod 5, and the length of the strip-shaped groove 5a is determined according to the axial movement stroke of the connecting screw rod 5. Spline-shaped protrusion 4a extends into strip-shaped groove 5a to realize spline connection between connecting shaft 4 and connecting screw rod 5, and spline connection realizes torque transmission, and spline-shaped protrusion can move in the strip simultaneously for connecting screw rod can move axially relative to the connecting shaft. The rear end of the connecting shaft 4 is connected with the motor 3.
After the end of first fixed sleeve 1 and second fixed sleeve 2 is laminated and the axis coincides (as shown in fig. 2 state), motor 3 drive connecting axle 4 rotates, and connecting axle 4 drives connecting screw 5 synchronous rotation simultaneously, and connecting screw 5 axial displacement is until stretching into in the second fixed sleeve 2 to take up first fixed sleeve 1, second fixed sleeve 2 together (as shown in fig. 3 state), connecting screw 5 axial displacement's in-process, the protruding 4a of spline shape removes in bar groove 5 a.
Preferably, the front and rear ends of the connecting screw 5 are respectively provided with a baffle 5b, and the baffle 5b at the rear end is provided with a hole for the rod part of the connecting shaft 4 to pass through.
When the connecting screw rod 5 is screwed in place, the screwing sections of the connecting screw rod 5 and the first fixing sleeve 1 and the second fixing sleeve 2 are preferably equal.
For further preventing that the vibration in the use from causing the connection not hard up, be provided with the sensor that targets in place on the second fixed sleeve 2, when electronic connecting bolt produced not hard up in the use, motor 3 automatic start targets in place until screwing up. The in-place sensor can be a laser displacement sensor or an infrared sensor, and when the electric connecting bolt is not screwed in place in the installation process, the motor 3 can be started again until the electric connecting bolt is screwed in place.
As shown in fig. 4, preferably, the spline-shaped protrusions 4a are circumferentially and uniformly distributed at the front end of the connecting shaft 4, and the spline-shaped cross section of the strip-shaped groove 5a is matched therewith.
As shown in fig. 5, the first fixing sleeve 1 is welded in the first connecting body 6, the second fixing sleeve 2 is welded in the second connecting body 7, and when the ends of the first fixing sleeve 1 and the second fixing sleeve 2 are fitted and the axes are coincident, the end faces of the first connecting body 6 and the second connecting body 7 are fitted together.
Claims (6)
1. An electronic connecting bolt which characterized in that: the connecting device comprises a first fixing sleeve (1), a second fixing sleeve (2), a motor (3), a connecting shaft (4) and a connecting screw rod (5), wherein an internal thread matched with an external thread of the connecting screw rod (5) is arranged in the first fixing sleeve (1) and the second fixing sleeve (2), the motor (3) is fixedly arranged in the first fixing sleeve (1) and close to the rear end, a spline-shaped bulge (4a) is arranged at the front end of the connecting shaft (4), a strip-shaped groove (5a) with a spline-shaped cross section is arranged in the connecting screw rod (5), the spline-shaped bulge (4a) extends into the strip-shaped groove (5a) to realize the spline connection between the connecting shaft (4) and the connecting screw rod (5), and the rear end of the connecting shaft (4) is connected with the motor (3); after the end laminating and the axis coincidence of first fixed sleeve (1) and second fixed sleeve (2), motor (3) drive connecting axle (4) rotate, connecting axle (4) drive connecting screw (5) synchronous rotation in the time, connecting screw (5) axial displacement until stretching into in second fixed sleeve (2), thereby with first fixed sleeve (1), second fixed sleeve (2) are taut together, and connecting screw (5) axial displacement's in-process, the protruding (4a) of spline shape removes in bar groove (5 a).
2. The electric coupling bolt according to claim 1, wherein: the front end and the rear end of the connecting screw rod (5) are respectively provided with a baffle (5b), and the baffle (5b) at the rear end is provided with a hole for the rod part of the connecting shaft (4) to pass through.
3. The electric coupling bolt according to claim 1, wherein: when the connecting screw rod (5) is screwed in place, the thread screwing sections of the connecting screw rod (5) and the first fixing sleeve (1) and the second fixing sleeve (2) are equal.
4. The electric coupling bolt according to claim 1, wherein: the spline-shaped bulges (4a) are uniformly distributed at the front end of the connecting shaft (4) in a circumferential manner, and the spline-shaped cross section of the strip-shaped groove (5a) is matched with the spline-shaped bulges.
5. The electric coupling bolt according to claim 1, wherein: the second fixing sleeve (2) is provided with an in-place sensor, and when the electric connecting bolt is loosened in the using process, the motor (3) is automatically started until the electric connecting bolt is screwed in place.
6. An electric coupling bolt according to any one of claims 1 to 5, wherein: the first fixing sleeve (1) is welded in the first connecting body (6), the second fixing sleeve (2) is welded in the second connecting body (7), and when the end of the first fixing sleeve (1) and the end of the second fixing sleeve (2) are attached and the axes of the first fixing sleeve and the second fixing sleeve coincide, the end faces of the first connecting body (6) and the second connecting body (7) are attached together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863976.XU CN210087799U (en) | 2019-06-10 | 2019-06-10 | Electric connecting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863976.XU CN210087799U (en) | 2019-06-10 | 2019-06-10 | Electric connecting bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087799U true CN210087799U (en) | 2020-02-18 |
Family
ID=69482204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863976.XU Active CN210087799U (en) | 2019-06-10 | 2019-06-10 | Electric connecting bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145529A (en) * | 2019-06-10 | 2019-08-20 | 龙奎 | A kind of electronic connection bolt |
-
2019
- 2019-06-10 CN CN201920863976.XU patent/CN210087799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145529A (en) * | 2019-06-10 | 2019-08-20 | 龙奎 | A kind of electronic connection bolt |
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