CN215038708U - Overload protection device for opening and closing shaft of light wallboard mold trolley - Google Patents
Overload protection device for opening and closing shaft of light wallboard mold trolley Download PDFInfo
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- CN215038708U CN215038708U CN202023244784.2U CN202023244784U CN215038708U CN 215038708 U CN215038708 U CN 215038708U CN 202023244784 U CN202023244784 U CN 202023244784U CN 215038708 U CN215038708 U CN 215038708U
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- transmission screw
- fixing base
- fixed seat
- nut
- screw nut
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Abstract
The utility model discloses a light wallboard mould car switching shaft overload protection device, including transmission screw and fixing base, the fixing base has the hole, transmission screw one end threaded connection has stop nut, and the other end inserts in the hole of fixing base and is connected with the fixing base is slided, the transmission screw is located outward and is equipped with the spring between fixing base and the stop nut, be provided with the shoulder hole in the fixing base, transmission screw tip is provided with the spacing step of being connected with the shoulder hole cooperation, and spacing step and stop nut block the spring between stop nut and fixing base, transmission screw lateral wall is provided with spacing plane and is connected with the hole cooperation of fixing base, and spacing plane makes the fixing base can rotate with the transmission screw is coaxial; the transmission screw nut is in transmission connection with the opening and closing shaft bolt. The utility model discloses can realize the overload protection to the switching axle to simple structure, installation and easy maintenance.
Description
Technical Field
The utility model belongs to light wallboard processing field especially relates to a light wallboard mould car switching shaft overload protection device.
Background
The fixing base of the opening and closing shaft of the light wallboard mold car rotates through the thread matching of the transmission screw and the opening and closing shaft to realize axial movement, and because the opening and closing shaft rotates at a high speed and has factors such as inertia, huge damage to equipment can be caused when the load is too large or the equipment cannot be stopped in time, and therefore a protection device needs to be additionally arranged.
At present, the overload protection devices manufactured according to various common clutch principles on the market are complex in mechanism and large in size during large torque, and cannot be applied to the condition of limited installation space.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough to the background art provides a light wallboard mould car switching shaft overload protection device, can realize the overload protection to the switching shaft to simple structure, installation and easy maintenance.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:
an overload protection device for an opening and closing shaft of a light wallboard mould car comprises a transmission screw and a fixed seat, wherein the fixed seat is provided with an inner hole, one end of the transmission screw is connected with a limit nut in a threaded manner, the other end of the transmission screw is inserted into the inner hole of the fixed seat and is connected with the fixed seat in a sliding manner, a spring is sleeved outside the transmission screw and between the fixed seat and the limit nut, a stepped hole is formed in the fixed seat, a limit step matched and connected with the stepped hole is arranged at the end part of the transmission screw, the spring is clamped between the limit nut and the fixed seat through the limit step and the limit nut, a limit plane is arranged on the side wall of the transmission screw and is matched and connected with the inner hole of the fixed seat, and the limit plane enables the fixed seat to rotate coaxially with the transmission screw; the transmission screw nut is in transmission connection with the opening and closing shaft bolt.
Furthermore, the number of the limiting nuts is two, and a spring gasket is arranged between the two limiting nuts.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
when giving the axle input moment of torsion that opens and shuts, the axle rotation that opens and shuts drives transmission screw and fixing base and makes axial motion, when the load was too big on the fixing base and can not remove, the axle that opens and shuts still is continuing to rotate this moment, and the transmission screw can continue to move a short distance left to the spring is compressed, utilizes the elasticity of spring to give transmission screw a reverse resistance, offsets the inertia revolving force of the axle that opens and shuts, has played the safety function.
Drawings
Fig. 1 is a schematic overall structure diagram of the present embodiment.
In the figure, 1, a transmission screw; 11. a limit nut; 111. a spring washer; 12. a limiting step; 121. a limiting plane; 2. a fixed seat; 21. an inner bore; 3. a spring; 4. the opening and closing shaft.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
an overload protection device for an opening and closing shaft of a light wallboard mould car is shown in figure 1 and comprises a transmission screw nut 1 and a fixed seat 2, wherein the fixed seat 2 is provided with an inner hole 21, one end of the transmission screw nut 1 is connected with a limit nut 11 in a threaded manner, the other end of the transmission screw nut 1 is inserted into the inner hole 21 of the fixed seat 2 and is in sliding connection with the fixed seat 2, a spring 3 is sleeved outside the transmission screw nut 1 and between the fixed seat 2 and the limit nut 11, a stepped hole is formed in the fixed seat 2, a limit step 12 in matched connection with the stepped hole is arranged at the end part of the transmission screw nut 1, the spring 3 is clamped between the limit nut 11 and the fixed seat 2 through the limit step 12 and the limit nut 11, a limit plane 121 is arranged on the side wall of the transmission screw nut 1 and is in matched connection with the inner hole 21 of the fixed seat 2, and the limit plane 121 enables the fixed seat 2 to rotate coaxially with the transmission screw nut 1; the transmission screw nut 1 is in bolt transmission connection with the opening and closing shaft 4. The two limiting nuts 11 are arranged, and a spring gasket 111 is arranged between the two limiting nuts 11.
The technical points of the utility model lie in that:
the opening and closing shaft 4 is provided with an independent supporting seat and is coaxial with the fixed seat 2; the opening and closing shaft 4 can only rotate to output torque and cannot axially move; the transmission nut 1, the limiting nut 11 and the spring 3 are coaxial; the outer circle of the end part of the transmission screw 1 is provided with a limiting step 12, the limiting step 12 is milled and matched with an inner hole 21 of the fixed seat 2, so that the transmission screw 1 can axially move in the fixed seat 2, and the transmission screw 1 can drive the fixed seat 2 to rotate together; the transmission screw nut 1 is in threaded connection with the opening and closing shaft 4, and the opening and closing shaft 4 drives the transmission screw nut 1 to axially move; the fixing seat 2 is provided with a threaded hole to be connected with other related parts, and the fixing seat 2 drives the related parts to move.
During operation, when giving the input moment of torsion of switching axle 4, switching axle 4 is rotatory to drive transmission screw 1 and fixing base 2 and make axial motion, when the load was too big and can not remove on fixing base 2, switching axle 4 is still continuing to rotate this moment, and transmission screw 1 can continue to move a small distance left to spring 3 is compressed, utilizes the elasticity of spring 3 to give transmission screw 1 a reverse resistance, offsets the inertia revolving force of switching axle 4, has played the safety function.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope. Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (2)
1. The utility model provides a light wallboard mould car switching shaft overload protection device which characterized in that: comprises a transmission screw nut (1) and a fixed seat (2), the fixed seat (2) is provided with an inner hole (21), one end of the transmission screw nut (1) is connected with a limit nut (11) in a threaded manner, the other end of the transmission screw nut is inserted into an inner hole (21) of the fixed seat (2) and is connected with the fixed seat (2) in a sliding manner, a spring (3) is sleeved between the fixed seat (2) and the limit nut (11) outside the transmission screw nut (1), a stepped hole is arranged in the fixed seat (2), a limit step (12) which is matched and connected with the stepped hole is arranged at the end part of the transmission screw nut (1), the limit step (12) and the limit nut (11) clamp the spring (3) between the limit nut (11) and the fixed seat (2), the side wall of the transmission screw nut (1) is provided with a limiting plane (121) and is matched and connected with an inner hole (21) of the fixing seat (2), and the limiting plane (121) enables the fixing seat (2) to rotate coaxially with the transmission screw nut (1); the transmission screw nut (1) is in bolt transmission connection with the opening and closing shaft (4).
2. The overload protection device for the opening and closing shaft of the light wallboard mold trolley according to claim 1, is characterized in that: the number of the limiting nuts (11) is two, and a spring gasket (111) is arranged between the two limiting nuts (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023244784.2U CN215038708U (en) | 2020-12-29 | 2020-12-29 | Overload protection device for opening and closing shaft of light wallboard mold trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023244784.2U CN215038708U (en) | 2020-12-29 | 2020-12-29 | Overload protection device for opening and closing shaft of light wallboard mold trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215038708U true CN215038708U (en) | 2021-12-07 |
Family
ID=79223469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023244784.2U Active CN215038708U (en) | 2020-12-29 | 2020-12-29 | Overload protection device for opening and closing shaft of light wallboard mold trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215038708U (en) |
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2020
- 2020-12-29 CN CN202023244784.2U patent/CN215038708U/en active Active
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