CN219686624U - Anti-falling driving device for lifting part of vulcanizing machine - Google Patents
Anti-falling driving device for lifting part of vulcanizing machine Download PDFInfo
- Publication number
- CN219686624U CN219686624U CN202321325982.2U CN202321325982U CN219686624U CN 219686624 U CN219686624 U CN 219686624U CN 202321325982 U CN202321325982 U CN 202321325982U CN 219686624 U CN219686624 U CN 219686624U
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- China
- Prior art keywords
- screw rod
- pawl
- rolling bearing
- connecting seat
- lifting
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- 238000005096 rolling process Methods 0.000 claims abstract description 36
- 210000004907 gland Anatomy 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model relates to an anti-falling driving device for a lifting part of a vulcanizing machine, wherein a driving mechanism comprises a motor, a connecting seat, a screw rod and a nut; the screw rod is provided with a first rolling bearing and is arranged and supported on the upper support through an upper gland; the connecting seat is provided with a second rolling bearing and is arranged and supported on the lower support through a lower gland; the screw rod and the output shaft of the motor are coaxially sleeved in the connecting seat up and down and are fixedly connected with the connecting seat through keys respectively, the motor drives the screw rod to convert the rotation motion of the motor into the up-down linear lifting motion of the lifting component through the nut; the anti-falling mechanism comprises an air cylinder, a pawl and a ratchet wheel which is formed on the outer wall of the connecting seat; the pawl is sleeved on the vertical pin shaft, the front end of the piston rod of the air cylinder is hinged with the rear end of the pawl, and the ratchet at the front end of the pawl is meshed with the ratchet wheel; the pawl is driven to rotate by controlling the extension and retraction of the piston rod of the air cylinder, so that the pawl brakes the ratchet wheel to form the anti-falling structure of the lifting component. Has the advantages of good reliability and high safety.
Description
Technical Field
The utility model relates to a falling-preventing driving device for a lifting part of a vulcanizing machine.
Background
The vulcanizing machine is tire production equipment in a tire factory, and along with the development trend of electric operation, the lifting action of a mold opening and closing manipulator of the vulcanizing machine is changed from original oil cylinder driving to motor driving screw rod rotating, the rotating motion of a motor is converted into screw rod nut linear motion, and a cross beam or a manipulator is pushed to do up-down linear lifting motion.
Because the lead screw adopts the ball bearing rolling lead screw mostly, the friction coefficient is small, so the self-locking is not possible, thereby easily generating falling accidents. In order to prevent unexpected falling accidents, when a motor stops rotating, a motor band-type brake device is generally adopted to brake a motor shaft, so that a beam or a manipulator stops at a control height, however, the band-type brake device has potential safety hazards in the driving mechanism, and when the motor band-type brake fails or the band-type brake gap is overlarge, the beam or the manipulator can fall, so that personal and equipment safety accidents are caused.
Disclosure of Invention
The utility model aims to solve the problems, and provides a falling-preventing driving device for a lifting part of a vulcanizing machine, which aims to solve the problem that in the prior art, a motor drives a screw rod to convert the rotation motion of a motor into the vertical linear lifting motion of the lifting part through a nut, so that falling accidents are easy to occur.
The utility model aims to realize that the anti-falling driving device for the lifting part of the vulcanizing machine comprises a driving mechanism and an anti-falling mechanism; the driving mechanism comprises a motor, a connecting seat, a screw rod and a nut which is arranged on the lifting part body and is in threaded connection with the screw rod; the screw rod is provided with a first rolling bearing in a tight fit manner and is supported on the upper support through an upper gland to rotate around a driving shaft of the screw rod; the connecting seat is provided with a second rolling bearing and is supported on the lower support through a lower gland to rotate around a driving shaft of the screw rod; the screw rod and the output shaft of the motor are coaxially sleeved in the connecting seat up and down and are fixedly connected with the connecting seat through keys respectively, the motor drives the screw rod to convert the rotation motion of the motor into the up-down linear lifting motion of the lifting component through the nut; the anti-falling mechanism comprises a cylinder, a cylinder support, a pawl, a vertical pin shaft and a ratchet wheel which is formed on the outer wall of the connecting seat and rotates around a driving shaft of the screw rod; the cylinder support is fixedly arranged on the lower support, the vertical pin shaft is fixed on the lower support, the rear end of the cylinder is hinged with the cylinder support, the front end of a piston rod of the cylinder is hinged with the rear end of a pawl through a connector, the front end of the pawl is provided with a ratchet meshed with a ratchet wheel, and the pawl is rotationally sleeved on the vertical pin shaft; the pawl is driven to rotate by controlling the extension and retraction of the piston rod of the air cylinder, so that the pawl brakes the ratchet wheel to form the anti-falling structure of the lifting component.
According to the utility model, the first rolling bearing forms a screw anti-falling structure; the second rolling bearing comprises an upper rolling bearing and a lower rolling bearing which are arranged on the upper side and the lower side of the ratchet wheel, and the connecting seat forms a screw rod driving balance mechanism through upper and lower erection support of the upper rolling bearing and the lower rolling bearing.
According to the utility model, after the first rolling bearing is tightly matched with the screw rod, the bearing support seat and the screw rod nut are used for pressing the inner ring of the first rolling bearing to limit the screw rod to move up and down linearly.
According to the utility model, the lower support is provided with the protective cover of the anti-falling mechanism.
The body of the lifting component is a vertical load component such as a cross beam or a manipulator.
According to the utility model, the pawl is driven to rotate by controlling the extension and retraction of the piston rod of the air cylinder, so that the pawl brakes the ratchet wheel to form the anti-falling structure of the lifting part, and the braking is synchronous to the motor shaft and the screw rod and is performed in one step, so that the braking reliability is good and the safety is high; the problem that in the prior art, the rotation motion of a motor is converted into the vertical linear lifting motion of a lifting part by a motor driving screw rod through a nut, so that falling accidents are easy to occur is well solved.
Drawings
FIG. 1 is a schematic diagram of the structure of one embodiment of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the embodiment of FIG. 1;
FIG. 3 is a schematic view of the fall arrest mechanism of the embodiment of FIG. 1, shown in an unbraked configuration;
fig. 4 is a schematic view of the fall arrest mechanism of the embodiment of fig. 1.
In the figure, A, a driving shaft of a screw rod; 1. a motor; 2. a connecting seat; 3. a screw rod; 4. a first rolling bearing; 5. a gland is arranged; 6. an upper support; 7. a lower gland; 8. a lower support; 9. an output shaft of the motor; 10. a cylinder; 11. a cylinder support; 12. a pawl; 13. a vertical pin shaft; 14. a ratchet wheel; 15. a connector; 16. a ratchet; 17. an upper rolling bearing; 18. a lower rolling bearing; 19. a bearing support; 20. a lead screw nut; 21. an inner ring of the first rolling bearing; 22. and a protective cover.
Detailed Description
Referring to fig. 1 to 4, the present embodiment is a falling prevention driving device for a lifting member of a vulcanizing machine, comprising a driving mechanism and a falling prevention mechanism; the driving mechanism comprises a motor 1, a connecting seat 2, a screw rod 3 and a nut which is arranged on the lifting part body and is in threaded connection with the screw rod; the screw rod is provided with a first rolling bearing 4 in a tight fit manner, is mounted and supported on an upper support 6 through an upper gland 5 and rotates around a driving shaft A of the screw rod, and the first rolling bearing forms a screw rod anti-falling structure; the connecting seat is provided with a second rolling bearing and is arranged and supported on the lower support 8 through the lower gland 7 to rotate around the driving shaft of the screw rod; the screw rod and an output shaft 9 of the motor are coaxially sleeved in the connecting seat up and down and are fixedly connected with the connecting seat through keys respectively, the motor drives the screw rod to convert the rotation motion of the motor into the up-down linear lifting motion of the lifting component through nuts; the anti-falling mechanism comprises an air cylinder 10, an air cylinder support 11, a pawl 12, a vertical pin shaft 13 and a ratchet wheel 14 which is formed on the outer wall of the connecting seat and rotates around the driving shaft of the screw rod; the cylinder support is fixedly arranged on the lower support, the vertical pin shaft is fixed on the lower support, the rear end of the cylinder is hinged with the cylinder support, the front end of a piston rod of the cylinder is hinged with the rear end of a pawl through a connector 15, the front end of the pawl is provided with a ratchet 16 meshed with a ratchet wheel, and the pawl is rotationally sleeved on the vertical pin shaft; the pawl is driven to rotate by controlling the extension and retraction of a piston rod of the air cylinder, so that the pawl brakes a ratchet wheel to form a lifting part anti-falling structure; the second rolling bearing comprises an upper rolling bearing 17 and a lower rolling bearing 18 which are arranged on the upper side and the lower side of the ratchet wheel, and the connecting seat forms a screw driving balance mechanism through the upper erection support of the upper rolling bearing and the lower erection support of the lower rolling bearing; after the first rolling bearing is tightly matched with the screw rod, the bearing support seat 19 and the screw rod nut 20 are used for pressing the inner ring 21 of the first rolling bearing to limit the screw rod to move up and down linearly; a protective cover 22 of the anti-falling mechanism is arranged on the lower support; the body of the lifting component is a cross beam or a manipulator.
The working process of the utility model is as follows: referring to fig. 3, when the beam or the manipulator needs to do lifting motion, the air inlet pipe of the air cylinder is in air inlet, the piston rod of the air cylinder extends out to push the pawl to swing anticlockwise and separate from the ratchet wheel, and the ratchet wheel can rotate freely; referring to fig. 4, when the cross beam or the manipulator hovers at any position, the piston rod of the control cylinder is contracted and reset, the pawl is pulled to swing clockwise and meshed with the ratchet wheel, the ratchet wheel is locked, the ratchet wheel is limited to be unable to rotate, and therefore the screw rod is limited to be unable to rotate, and the lifting component is safely locked.
Claims (5)
1. The utility model provides a vulcanizer lifting unit drive arrangement that falls that prevents which characterized in that: comprises a driving mechanism and a falling prevention mechanism;
the driving mechanism comprises a motor (1), a connecting seat (2), a screw rod (3) and a nut which is arranged on the lifting part body and is in threaded connection with the screw rod; the screw rod is provided with a first rolling bearing (4) in a tight fit manner and is mounted and supported on the upper support (6) through an upper gland (5) to rotate around a driving shaft (A) of the screw rod; the connecting seat is provided with a second rolling bearing and is supported on the lower support (8) through the lower gland (7) to rotate around the driving shaft of the screw rod; the screw rod and an output shaft (9) of the motor are coaxially sleeved in the connecting seat up and down and are fixedly connected with the connecting seat through keys respectively, the motor drives the screw rod to convert the rotary motion of the motor into the up-down linear lifting motion of the lifting component through nuts;
the anti-falling mechanism comprises an air cylinder (10), an air cylinder support (11), a pawl (12), a vertical pin shaft (13) and a ratchet wheel (14) which is formed on the outer wall of the connecting seat and rotates around a driving shaft of the screw rod; the cylinder support is fixedly arranged on the lower support, the vertical pin shaft is fixed on the lower support, the rear end of the cylinder is hinged with the cylinder support, the front end of a piston rod of the cylinder is hinged with the rear end of a pawl through a connector (15), the front end of the pawl is provided with a ratchet (16) meshed with a ratchet wheel, and the pawl is rotationally sleeved on the vertical pin shaft; the pawl is driven to rotate by controlling the extension and retraction of the piston rod of the air cylinder, so that the pawl brakes the ratchet wheel to form the anti-falling structure of the lifting component.
2. The vulcanizer lifting member fall protection driving device according to claim 1, wherein: the second rolling bearing comprises an upper rolling bearing (17) and a lower rolling bearing (18) which are arranged on the upper side and the lower side of the ratchet wheel, and the connecting seat forms a screw driving balance mechanism through the upper and lower erection support of the upper rolling bearing and the lower rolling bearing.
3. The vulcanizer lifting member fall protection driving device according to claim 1, wherein: the first rolling bearing is tightly matched with the screw rod, and the bearing support seat (19) and the screw rod nut (20) are used for pressing the inner ring (21) of the first rolling bearing to limit the screw rod to move up and down linearly.
4. A vulcanizer lifting member fall arrest driving device according to claim 1, 2 or 3, wherein: a protective cover (22) of the anti-falling mechanism is arranged on the lower support.
5. The vulcanizer lifting and lowering component fall protection driving device according to claim 4, wherein: the body of the lifting component is a cross beam or a manipulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321325982.2U CN219686624U (en) | 2023-05-29 | 2023-05-29 | Anti-falling driving device for lifting part of vulcanizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321325982.2U CN219686624U (en) | 2023-05-29 | 2023-05-29 | Anti-falling driving device for lifting part of vulcanizing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219686624U true CN219686624U (en) | 2023-09-15 |
Family
ID=87937948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321325982.2U Active CN219686624U (en) | 2023-05-29 | 2023-05-29 | Anti-falling driving device for lifting part of vulcanizing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219686624U (en) |
-
2023
- 2023-05-29 CN CN202321325982.2U patent/CN219686624U/en active Active
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