CN213350655U - Screw press transmission mechanism with overload protection function - Google Patents
Screw press transmission mechanism with overload protection function Download PDFInfo
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- CN213350655U CN213350655U CN202021886806.2U CN202021886806U CN213350655U CN 213350655 U CN213350655 U CN 213350655U CN 202021886806 U CN202021886806 U CN 202021886806U CN 213350655 U CN213350655 U CN 213350655U
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- transmission shaft
- protection function
- overload protection
- screw press
- motor
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Abstract
The utility model relates to a screw press drive mechanism with overload protection function, including motor, transmission shaft, pinion, gear wheel, its technical essential is: the lower portion of the transmission shaft is provided with a hollow cavity matched with the motor output shaft, the peripheral face of the lower portion of the transmission shaft is provided with a horizontal supporting plate, a lower friction plate is arranged between the lower end face of the small gear and the upper surface of the horizontal supporting plate, the upper portion of the transmission shaft is provided with a pressing seat and an upper friction plate between the lower end face of the pressing seat and the upper end face of the small gear, the pressing seat is evenly provided with a plurality of guide posts and guide posts, the guide posts are sequentially sleeved with lower positioning seats, butterfly springs and upper positioning seats, the top ends of the guide posts are connected with positioning sleeves in a threaded mode, the upper portion of the. The mechanism solves the problem that the motor side of the existing transmission mechanism is damaged due to the abnormity of the load end, timely deals with the sudden situation, and saves the damaged maintenance cost of the motor.
Description
Technical Field
The utility model relates to an electronic screw press, concretely relates to screw press drive mechanism with overload protection function.
Background
The electric screw press is forging and pressing equipment with extremely strong process applicability, and has the characteristics of simple structure, convenience in adjustment and maintenance, no bottom dead point of a sliding block, convenience in die design, high forging precision and the like. The working principle is as follows: a motor is adopted to drive a pinion to rotate, a bull gear which is meshed with the pinion and coaxial with a screw is driven to rotate, the bull gear drives the screw to synchronously rotate and drives a nut fixed in a sliding block to vertically reciprocate along the screw through a screw pair, and forging and forming are achieved.
However, during the power transmission process, when the load end, i.e. the large gear end, has a special condition such as abnormal locking or the load is increased, the small gear side is blocked from rotating and transmits overload load to the output shaft of the motor, so that the motor and related structures such as the gear are damaged.
Disclosure of Invention
The utility model aims at providing a compact structure, use reliable screw press drive mechanism who has overload protection function, solve current drive mechanism and cause the impaired problem of motor side because of the load end is unusual, in time deal with proruption situation, practiced thrift the impaired maintenance cost of motor.
The technical scheme of the utility model is that:
the utility model provides a screw press drive mechanism with overload protection function, includes the motor, with motor output shaft's transmission shaft, locate the epaxial pinion of transmission, with the coaxial and pinion engagement's of press screw gear wheel, its technical essential is: the lower portion of the transmission shaft is provided with a hollow cavity matched with a motor output shaft, the peripheral face of the lower portion of the transmission shaft is provided with a horizontal supporting plate, a lower friction plate is arranged between the lower end face of the small gear and the upper surface of the horizontal supporting plate, the upper portion of the transmission shaft is sleeved with a pressing seat, an upper friction plate is arranged between the lower surface of the pressing seat and the upper end face of the small gear, a plurality of guide posts and upper positioning seats are uniformly arranged on the pressing seat, the guide posts are sequentially sleeved with lower positioning seats, disc springs and upper positioning seats, the top ends of the guide posts are in threaded connection with positioning sleeves, the upper portion of the transmission shaft is additionally provided with.
Foretell screw press drive mechanism with overload protection function, the transmission shaft outside is equipped with the safety cover, safety cover lower extreme and motor cabinet body fixed connection, transmission shaft upper end cover is equipped with the bearing, and the safety cover top surface is equipped with the mounting groove that corresponds with the bearing, and the mounting groove lower part is equipped with the oil blanket, and the mounting groove top is fixed with the gland, and the safety cover top surface evenly is equipped with in addition in a plurality of screw holes and the screw hole and has twisted soon adjusting bolt, adjusting bolt's the directional pressure plate edge in inner is equipped with lock nut II on adjusting bolt's the section that exposes.
In the screw press transmission mechanism with the overload protection function, the protection cover is provided with the avoidance port towards the large gear.
According to the screw press transmission mechanism with the overload protection function, the locking nut I is a profiling nut, a section of horizontal notch is formed in the outer peripheral wall of the profiling nut, and the locking screw is arranged at the position where the horizontal notch is formed so as to enhance the locking effect.
According to the screw press transmission mechanism with the overload protection function, the longitudinal section of the pressing seat is inverted T-shaped and comprises the straight cylinder part in contact with the transmission shaft and the annular supporting part arranged at the lower part of the straight cylinder part, the guide column is vertically arranged above the annular supporting part and is in a bolt shape, and the annular supporting part is provided with the U-shaped clamping groove corresponding to the nut of the guide column, so that the screw press transmission mechanism is convenient to install.
In the screw press transmission mechanism with the overload protection function, the upper positioning seat and the lower positioning seat are respectively provided with the horizontal skirt edges, the butterfly spring abuts against the space between the horizontal skirt edges of the upper positioning seat and the lower positioning seat, and the upper surface of the upper positioning seat is in contact with the lower surface of the pressing plate.
According to the screw press transmission mechanism with the overload protection function, the through hole in the pressing plate is a stepped hole, and the outer peripheral surface of the positioning sleeve is in a stepped shape matched with the through hole, so that the axial limiting effect is achieved, and the phenomenon that the pre-tightening force is excessive during adjustment is avoided.
In the screw press transmission mechanism with the overload protection function, the inner peripheral surface of the pinion is fixed with the shaft sleeve and is fixed with the transmission shaft through the shaft sleeve.
In the screw press transmission mechanism with overload protection function, the upper end surface and the lower end surface of the pinion are respectively provided with the grooves corresponding to the upper friction plate and the lower friction plate.
In the screw press transmission mechanism with the overload protection function, the motor frame of the screw press for fixing the motor is provided with the adjusting screw for adjusting the position of the motor so as to adjust the distance between the large gear and the small gear and realize meshing transmission.
The utility model has the advantages that:
before the work, through I adjusting pressure strip of lock nut position on the transmission shaft, the pressure strip compresses tightly the pinion through compressing tightly the seat when epaxial production displacement, and the pinion is extruded together to the upper and lower friction disc of pinion upper and lower terminal surface, forms the pretightning force, and the output torque of motor passes through the pretightning force and transmits. Due to the arrangement of the belleville spring and peripheral parts thereof, when special conditions such as abnormal locking and the like occur at a load end (a large gear side) or the load is increased, the upper end surface and the lower end surface of the upper friction plate, the lower friction plate and the pinion gear move relatively to realize unloading and overload protection. The magnitude of the unloading force can be set through the magnitude of the deformation of the compression disc spring, so that the damage to the motor side caused by the abnormal load end is avoided, and the damaged maintenance cost of the motor is saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged view of a portion B in fig. 3.
In the figure: 1. the novel hydraulic press comprises a protective cover, 2 parts of a large gear, 3 parts of a screw press, 4 parts of a motor frame, 5 parts of an adjusting screw, 6 parts of a motor, 7 parts of an output shaft, 8 parts of a transmission shaft, 9 parts of a small gear, 10 parts of a flat key, 11 parts of a lower friction plate, 12 parts of a shaft sleeve, 13 parts of a guide post, 14 parts of an upper friction plate, 15 parts of a belleville spring, 16 parts of a positioning sleeve, 17 parts of an adjusting bolt, 18 parts of a locking nut II, 19 parts of a gland bush, 20 parts of a bearing, 21 parts of an oil seal, 22 parts of a locking screw, 23 parts of a locking nut I, 24 parts of a compression plate, 25 parts.
Detailed Description
As shown in fig. 1-4, the screw press transmission mechanism with overload protection function includes a motor 6, a transmission shaft 8 connected with a motor output shaft 7 by a flat key 10, a pinion 9 arranged on the transmission shaft 8, and a bull gear 2 coaxial with the press screw and meshed with the pinion 9.
The lower portion of the transmission shaft 8 is provided with a hollow cavity matched with the motor output shaft 7, the peripheral face of the lower portion of the transmission shaft 8 is provided with a horizontal supporting plate, a lower friction plate 11 is arranged between the lower end face of the pinion 9 and the upper surface of the horizontal supporting plate, the upper portion of the transmission shaft 8 is sleeved with a pressing seat 27, an upper friction plate 14 is arranged between the lower surface of the pressing seat 27 and the upper end face of the pinion 9, the pressing seat 27 is evenly provided with a plurality of guide columns 13, the guide columns 13 are sequentially sleeved with a lower positioning seat 26, a disc spring 15 and an upper positioning seat 25, the top ends of the guide columns 13 are in threaded connection with positioning sleeves 16, the upper portion of the transmission shaft 8 is additionally provided with a pressing plate 24 and a locking nut I.
In this embodiment, 8 outsides of transmission shaft are equipped with safety cover 1, 1 lower extremes of safety cover and motor cabinet body fixed connection, 8 upper end covers of transmission shaft are equipped with bearing 20, and 1 top surfaces of safety cover are equipped with the mounting groove that corresponds with bearing 20, and the mounting groove lower part is equipped with oil blanket 21, and the mounting groove top is fixed with gland 19, and 1 top surfaces of safety cover evenly is equipped with in addition that a plurality of screw holes and screw hole are twisted soon there is adjusting bolt 17, the directional pressure strip 24 edge in adjusting bolt 17's the inner is equipped with lock nut II 18 on the section that exposes of adjusting bolt 17. The protective cover 1 is provided with an avoidance opening towards the side of the large gear 2. Locking nut I23 is the profile modeling nut, the periphery wall of profile modeling nut is equipped with one section horizontal incision, and the position that is equipped with horizontal incision is equipped with locking screw 22 to reinforcing locking effect. The longitudinal section of the pressing seat 27 is in an inverted T shape and comprises a straight cylinder part in contact with the transmission shaft 8 and an annular supporting part arranged at the lower part of the straight cylinder part, the guide post 13 is vertically arranged above the annular supporting part, the guide post 13 is in a bolt shape, and a U-shaped clamping groove is formed in the position, corresponding to the nut of the guide post, of the annular supporting part, so that the installation is convenient. The upper positioning seat 25 and the lower positioning seat 26 are respectively provided with a horizontal skirt, the belleville spring 15 abuts against the horizontal skirt of the upper positioning seat 25 and the horizontal skirt of the lower positioning seat 26, and the upper surface of the upper positioning seat 25 is in contact with the lower surface of the pressing plate 24. The through hole on the pressure strip 24 is a stepped hole, and the outer peripheral surface of the positioning sleeve 16 is in a step shape matched with the through hole, so that the axial limiting effect is achieved, and excessive pre-tightening force is avoided being adjusted. A sleeve 12 is fixed on the inner peripheral surface of the pinion 9, and is fixed with the transmission shaft 8 through the sleeve 12. The upper end surface and the lower end surface of the pinion 9 are respectively provided with a groove corresponding to the upper friction plate 14 and the lower friction plate 11. The motor frame 4 of the screw press 3 for fixing the motor is provided with an adjusting screw 5 for adjusting the position of the motor so as to adjust the distance between the large gear 2 and the small gear 9 and realize meshing transmission.
In this embodiment, 4 motors 6 are adopted to drive 4 small gears 9 to rotate, and 4 small gears 9 are uniformly distributed around the large gear 2 to drive the large gear 2 to rotate together, so that the driving capability and the operation stability are enhanced.
Before work, when the pretightening force is adjusted, the adjusting bolts 17 on the top surface of the protective cover 1 are used for extruding the edge of the pressing plate 24 to enable the pressing plate 24 to descend to a set position, the locking nut II 18 is used for locking, and then the locking nut I23 is adjusted downwards to be connected with the pressing plate 24 and locked by the locking screw 22. Then, the adjusting bolts 17 are adjusted back to leave a gap between the lower ends of the adjusting bolts and the pressing plate 24, so that interference is avoided.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (10)
1. The utility model provides a screw press drive mechanism with overload protection function, includes the motor, with motor output shaft's transmission shaft, locate the epaxial pinion of transmission, with the coaxial and pinion engagement's of press screw gear wheel, its characterized in that: the lower portion of the transmission shaft is provided with a hollow cavity matched with a motor output shaft, the peripheral face of the lower portion of the transmission shaft is provided with a horizontal supporting plate, a lower friction plate is arranged between the lower end face of the small gear and the upper surface of the horizontal supporting plate, the upper portion of the transmission shaft is sleeved with a pressing seat, an upper friction plate is arranged between the lower surface of the pressing seat and the upper end face of the small gear, a plurality of guide posts and upper positioning seats are uniformly arranged on the pressing seat, the guide posts are sequentially sleeved with lower positioning seats, disc springs and upper positioning seats, the top ends of the guide posts are in threaded connection with positioning sleeves, the upper portion of the transmission shaft is additionally provided with.
2. The screw press transmission mechanism with overload protection function according to claim 1, wherein: the utility model discloses a motor, including transmission shaft, safety cover, mounting groove top, adjusting bolt, the inside of transmission shaft, the outside safety cover that is equipped with of transmission shaft, safety cover lower extreme and motor cabinet body fixed connection, transmission shaft upper end cover is equipped with the bearing, and the safety cover top surface is equipped with the mounting groove that corresponds with the bearing, and the mounting groove lower part is equipped with the oil blanket, and the mounting groove top is fixed with the gland, and the safety cover top surface evenly is equipped with a plurality of screw holes in addition and the screw hole and twists soon has.
3. The screw press transmission mechanism with overload protection function according to claim 2, wherein: the safety cover is provided with an avoidance opening towards the large gear.
4. The screw press transmission mechanism with overload protection function according to claim 1, wherein: locking nut I is the profile modeling nut, the periphery wall of profile modeling nut is equipped with one section horizontal incision, and the position that is equipped with horizontal incision is equipped with locking screw.
5. The screw press transmission mechanism with overload protection function according to claim 1, wherein: the longitudinal section of the pressing seat is in an inverted T shape and comprises a straight cylinder part in contact with the transmission shaft and an annular supporting part arranged at the lower part of the straight cylinder part, the guide post is vertically arranged above the annular supporting part and is in a bolt shape, and a U-shaped clamping groove is formed in the nut position of the annular supporting part corresponding to the guide post.
6. The screw press transmission mechanism with overload protection function according to claim 1, wherein: the upper positioning seat and the lower positioning seat are respectively provided with a horizontal skirt edge, the butterfly spring abuts against the position between the horizontal skirt edges of the upper positioning seat and the lower positioning seat, and the upper surface of the upper positioning seat is in contact with the lower surface of the pressing plate.
7. The screw press transmission mechanism with overload protection function according to claim 1, wherein: the through hole on the pressure strip is a stepped hole, and the peripheral surface of the positioning sleeve is in a stepped shape matched with the through hole.
8. The screw press transmission mechanism with overload protection function according to claim 1, wherein: and a shaft sleeve is fixed on the inner peripheral surface of the pinion and is fixed with the transmission shaft through the shaft sleeve.
9. The screw press transmission mechanism with overload protection function according to claim 1, wherein: the upper end surface and the lower end surface of the pinion are respectively provided with a groove corresponding to the upper friction plate and the lower friction plate.
10. The screw press transmission mechanism with overload protection function according to claim 1, wherein: and an adjusting screw for adjusting the position of the motor is arranged on a motor frame of the screw press for fixing the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021886806.2U CN213350655U (en) | 2020-09-02 | 2020-09-02 | Screw press transmission mechanism with overload protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021886806.2U CN213350655U (en) | 2020-09-02 | 2020-09-02 | Screw press transmission mechanism with overload protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213350655U true CN213350655U (en) | 2021-06-04 |
Family
ID=76148570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021886806.2U Expired - Fee Related CN213350655U (en) | 2020-09-02 | 2020-09-02 | Screw press transmission mechanism with overload protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213350655U (en) |
-
2020
- 2020-09-02 CN CN202021886806.2U patent/CN213350655U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210604 Termination date: 20210902 |