CN108869570B - Torque limiter used for building and based on centrifugal block control steel ball driving - Google Patents

Torque limiter used for building and based on centrifugal block control steel ball driving Download PDF

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Publication number
CN108869570B
CN108869570B CN201811099041.5A CN201811099041A CN108869570B CN 108869570 B CN108869570 B CN 108869570B CN 201811099041 A CN201811099041 A CN 201811099041A CN 108869570 B CN108869570 B CN 108869570B
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China
Prior art keywords
block
groove
driving
adjusting
spring
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CN201811099041.5A
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Chinese (zh)
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CN108869570A (en
Inventor
曹燕云
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Quanzhou Huian Jingming Furniture Co., Ltd
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Quanzhou Huian Jingming Furniture Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/005—Slip couplings, e.g. slipping on overload, for absorbing shock the torque being transmitted and limited by rolling friction, e.g. ball bearings axially loaded

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

The invention belongs to the technical field of torque limiters, and particularly relates to a torque limiter used for buildings and driven by steel balls based on centrifugal block control, which comprises an output sleeve, an output shell, a fixing ring, an adjusting mechanism, an input shaft, a vane mechanism, driving steel balls, an adjusting hole and an accommodating cavity, wherein the 6 vane mechanisms are uniformly arranged on the outer circular surface of the input shaft in the circumferential direction and have the functions of driving the driving steel balls in the output shell to move on one hand, so that the driving steel balls can drive the output shell to move, and increasing the number of the driving steel balls on the other hand; the inner circle surface of the fixing ring is arranged on the outer circle surface of the input shaft, so that the output shell is convenient to install; the output shell is provided with an accommodating cavity for accommodating the driving steel balls and the blade mechanism; the outer disc of output shell is gone up the even division of circumference and is had 6 regulation holes, and every regulation hole all communicates with each other with holding the chamber, and all opens the effect that has the internal thread on every regulation hole inner disc and be convenient for install the regulating block with the motion of the regulating block of being convenient for.

Description

Torque limiter used for building and based on centrifugal block control steel ball driving
Technical Field
The invention belongs to the technical field of torque limiters, and particularly relates to a torque limiter for a building, which is driven by a steel ball and controlled by a centrifugal block.
Background
The torque value of an output sleeve on the torque limiter is continuously increased along with the change of the rotating speed of an input shaft of the existing torque limiter driven by steel balls and used for buildings; when the torque limiter is used, if the input shaft rotates at a high speed, the bearing torque value of the output sleeve is increased; it is possible to cause damage to the output sleeve on the torque limiter; affect normal use of the torque limiter; therefore, the torque limiter for the building is designed based on the centrifugal block to control the steel ball driving.
The invention designs a torque limiter for buildings, which is driven by a steel ball based on centrifugal block control and solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a torque limiter for a building, which is driven by a steel ball based on centrifugal block control, and the torque limiter is realized by adopting the following technical scheme.
The utility model provides a torque limiter that steel ball driven building was used based on centrifugal block control which characterized in that: the device comprises an output sleeve, an output shell, a fixing ring, an adjusting mechanism, an input shaft, a blade mechanism, a driving steel ball, an adjusting hole and an accommodating cavity, wherein 6 blade mechanisms are uniformly arranged on the outer circular surface of the input shaft in the circumferential direction; the inner circular surface of the fixed ring is arranged on the outer circular surface of the input shaft; the output shell is provided with a containing cavity; the outer circular surface of the output shell is uniformly provided with 6 adjusting holes in the circumferential direction, each adjusting hole is communicated with the accommodating cavity, and the inner circular surface of each adjusting hole is provided with internal threads; the output shell is nested on the input shaft, one end of the output shell is arranged on the outer circular surface of the fixed ring, and the 6 blade mechanisms are all positioned in the accommodating cavity; a plurality of driving steel balls are arranged in the accommodating cavity; the output sleeve is nested on the input shaft, and one end of the output sleeve is arranged on the end face of the output shell; the 6 adjusting mechanisms are circumferentially and uniformly arranged on the outer circular surface of the output shell and are matched with the corresponding adjusting holes.
The adjusting mechanism comprises an adjusting block, a fixing ring, a first spring, a first centrifugal block, a first fixing column, a T-shaped ring, a driving rod, a first driving block, a second driving groove, a second round hole, a T-shaped ring groove, a first driving groove, a first round hole and a third round hole, wherein the end face of the first fixing column is provided with the third round hole, and the inner circular face, close to the inner end face, of the third round hole is provided with an internal thread; the first fixing column is arranged on the outer circular surface of the output shell, and the third circular hole is matched with the adjusting hole; the outer circular surface of the first centrifugal block is provided with an external thread; a second round hole is formed in the end face of the first centrifugal block; two second driving grooves are symmetrically formed in the inner circular surface of the second circular hole; the end surface of the first centrifugal block provided with the second round hole is provided with a T-shaped annular groove; the first centrifugal block is arranged in the third round hole in a matching way through an external thread formed on the first centrifugal block and an internal thread formed on the third round hole; the two second driving blocks are symmetrically arranged on the outer circular surface at one end of the driving rod; the two first driving blocks are symmetrically arranged on the outer circular surface at the other end of the driving rod; the driving rod is arranged in the third round hole through the fixing ring, and the second driving block is in sliding fit with the second driving groove; the outer circle surface of the adjusting block is provided with an external thread; a first round hole is formed in the end face of the adjusting block; two first driving grooves are symmetrically formed in the inner circular surface of the first circular hole; the adjusting block is arranged in the first fixing column in a matching way through an external thread formed on the adjusting block and an internal thread formed on the adjusting hole; the first driving groove is in sliding fit with the first driving block; the first spring is nested on the driving rod, one end of the first spring is installed on the fixing ring, the other end of the first spring is installed on the first centrifugal block through a T-shaped ring, and the T-shaped ring is matched with the T-shaped ring groove.
The blade mechanism comprises a second fixed column, a second spring, a T-shaped strip, a fourth spring, a first inclined block, a second inclined block, an adjusting steel ball, a third spring, a limiting block, a limiting groove, a moving groove, a fourth round hole, a first guide groove, a fifth spring, a first guide block, a second guide block, a connecting rod, a T-shaped groove, a sliding groove, a second guide groove, a square groove, a second centrifugal block, a second inclined plane, a first inclined plane and a third inclined plane, wherein the end surface of the first fixed column is provided with the fourth round hole; 4 limiting grooves are sequentially formed in the inner circular surface of the first circular hole; two sliding grooves are symmetrically formed in the inner circular surface of one end, close to the end face of the fourth round hole, of the first round hole; two first guide grooves are symmetrically formed in the two side faces of the sliding groove; the two first guide blocks are symmetrically arranged on two side surfaces of the limiting block; the limiting block is arranged in the sliding groove through the matching of the first guide block and the first guide groove; a third spring is arranged in the sliding groove, one end of the third spring is arranged on the end face of the sliding groove, and the other end of the third spring is arranged on the limiting block; the 3 adjusting steel balls are sequentially arranged in the fourth round hole, each adjusting steel ball is matched with a corresponding limiting groove in the 3 limiting grooves close to the limiting block, and the adjusting steel ball far away from the end face of the fourth round hole is matched with the limiting block; a square groove is formed on the end face of the second centrifugal block; two second guide grooves are symmetrically formed in the two side faces of the square groove; a moving groove is formed in the outer circular surface of the second centrifugal block and communicated with the square groove; a T-shaped groove is formed in the end face of the movable groove; the second centrifugal block is arranged in the fourth round hole; the second spring is positioned in the fourth round hole, one end of the second spring is installed on the end face of the fourth round hole, and the other end of the second spring is installed on the second centrifugal block; the second centrifugal block has magnetism; the two second guide blocks are symmetrically arranged on two side surfaces of the second inclined block, and the second inclined block is provided with a second inclined surface; the second inclined block is arranged in the square groove through the matching of the second guide block and the second guide groove; a fifth spring is arranged in the second guide groove, one end of the fifth spring is arranged on the end face of the second guide groove, and the other end of the fifth spring is arranged on the second guide block; the first inclined block is provided with a first inclined surface; the T-shaped block is arranged on the end face of the first inclined block; the first inclined block is arranged in the moving groove through the matching of the T-shaped block and the T-shaped groove, and the first inclined plane is matched with the second inclined plane; the fourth spring is positioned in the T-shaped groove, one end of the fourth spring is arranged on the end face of the T-shaped groove, and the other end of the fourth spring is arranged on the T-shaped block; one end of the connecting rod is arranged on the first inclined block; a third inclined plane is arranged on the end surface of the limiting block; one end of the limiting block is arranged on the connecting rod, and the other end of the limiting block is matched with the limiting groove.
The initial position of the limiting block is positioned in a limiting groove close to the inner end face of the fourth round hole.
As a further improvement of the technology, the fixing ring is welded in the third round hole.
As a further improvement of the technology, the driving rod is installed in the fixed ring through a bearing.
As a further improvement of the present technology, the inclination angles of the first inclined surface and the second inclined surface are the same.
As a further improvement of the technology, the diameter of the adjusting steel ball is equal to that of the driving steel ball.
As a further improvement of the present technique, the above-mentioned connecting rod has no elasticity.
Compared with the traditional torque limiter technology, the 6 vane mechanisms are uniformly arranged on the outer circular surface of the input shaft in the circumferential direction and have the functions of driving the driving steel balls in the output shell to move so as to drive the output shell to move on one hand, and increasing the number of the driving steel balls on the other hand; the inner circle surface of the fixing ring is arranged on the outer circle surface of the input shaft, so that the output shell is convenient to install; the output shell is provided with an accommodating cavity for accommodating the driving steel balls and the blade mechanism; the outer circular surface of the output shell is uniformly provided with 6 adjusting holes in the circumferential direction, each adjusting hole is communicated with the accommodating cavity, and the inner circular surface of each adjusting hole is provided with internal threads for facilitating the installation of an adjusting block; the output shell is nested on the input shaft, one end of the output shell is arranged on the outer circular surface of the fixed ring, and the 6 blade mechanisms are positioned in the accommodating cavity to facilitate the installation of the output sleeve; a plurality of driving steel balls are arranged in the accommodating cavity and are used for driving the output shell to move; the output sleeve is nested on the input shaft, and one end of the output sleeve is arranged on the end face of the output shell and is used for transmitting the motion on the driving shell to the output sleeve; the 6 adjusting mechanisms are circumferentially and uniformly arranged on the outer circular surface of the output shell, and the adjusting mechanisms are matched with the corresponding adjusting holes to adjust the contact area of the driving shell and the driving steel balls, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled.
The adjusting mechanism is used for adjusting the contact area of the driving shell and the driving steel ball, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled; a third round hole is formed in the end face of the first fixed column, and an internal thread is formed in the inner circular face, close to the inner end face, of the third round hole, so that the first centrifugal block can slide along the internal thread and can rotate; the first fixing column is arranged on the outer circular surface of the output shell, and the third circular hole is matched with the adjusting hole to facilitate the installation of the first centrifugal block, the adjusting block and the driving rod; the outer circle surface of the first centrifugal block is provided with an external thread which is matched with an internal thread arranged on the third round hole; the end face of the first centrifugal block is provided with a second round hole for accommodating the driving rod conveniently; the inner circular surface of the second round hole is symmetrically provided with two second driving grooves which are used for being matched with second driving blocks arranged on the driving rod, when the first centrifugal block rotates under the action of thread matching, the first centrifugal block can transmit the motion to the driving rod through the matching of the second driving blocks and the second driving grooves; the T-shaped ring groove is formed in the end face, provided with the second round hole, of the first centrifugal block, so that the first spring is convenient to mount and prevented from influencing the rotary motion of the first centrifugal block; the first centrifugal block is arranged in the third round hole in a matching way through an external thread formed on the first centrifugal block and an internal thread formed on the third round hole and has the function of identifying the movement speed of the output shell; the driving rod is arranged in the third round hole through the fixing ring, and the second driving block and the second driving groove are in sliding fit to transfer the motion on the first centrifugal block to the adjusting block; the outer circular surface of the adjusting block is provided with an external thread which is convenient for the adjusting block to rotate and enter the adjusting hole; the end face of the adjusting block is provided with a first round hole for facilitating installation of the driving rod; the inner circular surface of the first round hole is symmetrically provided with two first driving grooves for transmitting the motion of the driving rod to the adjusting block; the adjusting block is arranged in the first fixing column through the matching of external threads formed on the adjusting block and internal threads formed on the adjusting hole and has the function of adjusting the contact area between the inner wall of the output shell and the driving steel ball; the first spring is nested on the driving rod, one end of the first spring is installed on the fixing ring, the other end of the first spring is installed on the first centrifugal block through the T-shaped ring, and the T-shaped ring groove are matched to exert a restoring force on the first centrifugal block.
The blade mechanism has the functions that on one hand, the blade mechanism drives the driving steel balls in the output shell to move so that the driving steel balls can drive the output shell to move, and on the other hand, the blade mechanism increases the number of the driving steel balls so as to achieve the purpose of increasing the critical torque value of the torque limiter; the end face of the first fixed column is provided with a fourth round hole for accommodating an adjusting steel ball and a second centrifugal block conveniently; 4 limiting grooves are sequentially formed in the inner circular surface of the first circular hole and are used for limiting the movement of the limiting block, and 3 speed gears are formed to limit the movement of the limiting block; two sliding grooves are symmetrically formed in the inner circular surface of one end, close to the end face of the fourth round hole, of the first round hole, so that the limiting block can be conveniently accommodated; two first guide grooves are symmetrically formed in the two side faces of the sliding groove and are used for being matched with first guide blocks arranged on the limiting blocks, and the purpose of limiting the movement of the limiting blocks and guiding the movement of the limiting blocks is achieved; the limiting block is arranged in the sliding groove through the matching of the first guide block and the first guide groove and is used for limiting and adjusting the movement of the steel ball; a third spring is arranged in the sliding groove, one end of the third spring is arranged on the end face of the sliding groove, and the other end of the third spring is arranged on the limiting block to exert a restoring force on the limiting block; the 3 adjusting steel balls are sequentially arranged in the fourth round hole, each adjusting steel ball is matched with a corresponding limiting groove in the 3 limiting grooves close to the limiting block, and the matching effect of the adjusting steel balls far away from the end face of the fourth round hole and the limiting block is that the number of steel balls for driving in the output shell is increased, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled; the end face of the second centrifugal block is provided with a square groove for accommodating a second inclined block conveniently; two second guide grooves are symmetrically formed in the two side faces of the square groove and are in sliding fit with second guide blocks arranged on the second inclined blocks; a moving groove is formed in the outer circular surface of the second centrifugal block, and the moving groove is communicated with the square groove to facilitate movement of the first inclined block; the end face of the movable groove is provided with a T-shaped groove for limiting the movement of the second inclined block; the second centrifugal block is arranged in the fourth round hole and is used for identifying the rotating speed of the input shaft; the second spring is positioned in the fourth round hole, one end of the second spring is arranged on the end face of the fourth round hole, and the other end of the second spring is arranged on the second centrifugal block and is used for exerting a restoring force on the second centrifugal block; the second centrifugal block has magnetic function to facilitate the attraction and adjustment of the steel ball; the second inclined block is provided with a second inclined surface which is matched with the first inclined surface on the first inclined block in action, so that the motion on the second inclined block is transmitted to the first inclined block; the second inclined block is arranged in the square groove through the matching of the second guide block and the second guide groove and is used for driving the first inclined block to move conveniently; a fifth spring is arranged in the second guide groove, one end of the fifth spring is arranged on the end face of the second guide groove, and the other end of the fifth spring is arranged on the second guide block and is used for exerting a restoring force on the second guide block; the T-shaped block is arranged on the end surface of the first inclined block and is used for limiting the movement of the first inclined block; the first inclined block is arranged in the moving groove through the matching of the T-shaped block and the T-shaped groove, and the matching effect of the first inclined plane and the second inclined plane is convenient for installing the connecting rod; the fourth spring is positioned in the T-shaped groove, one end of the fourth spring is arranged on the end face of the T-shaped groove, and the other end of the fourth spring is arranged on the T-shaped block and is used for restoring force of the T-shaped block; one end of the connecting rod is arranged on the first inclined block and is used for connecting the first inclined block and the limiting block; the end face of the limiting block is provided with a third inclined surface which has the function that the limiting block can smoothly cross the limiting groove under the action of centrifugal force applied to the second centrifugal block; one end of the limiting block is arranged on the connecting rod, the other end of the limiting block is matched with the limiting groove to limit the movement of the connecting rod, and the effect of limiting the second centrifugal block is achieved through the first inclined block; the initial position of the limiting block is positioned in the limiting groove close to the inner end face of the fourth round hole, so that the centrifugal block can recognize a larger range of rotating speed conveniently; the same inclination angle of the first inclined plane and the second inclined plane has the function of facilitating the close fit of the first inclined block and the second inclined block; the diameter of the steel ball is adjusted to be equal to that of the driving steel ball, so that the output shell is stable in the motion process; the connecting rod has no elasticity and is used for successfully transmitting the motion of the limiting block to the first inclined block or transmitting the motion of the first inclined block to the limiting block.
In the use process, when the input shaft moves, the moving input shaft drives the second fixing column to move, the second fixing column drives the driving steel ball to move, the driving steel ball drives the output shell to move, and the moving output shell drives the output sleeve to move, so that the purpose that the input shaft drives the output sleeve to move is achieved; when the rotating speed of the input shaft is increased, the input shaft can drive the second fixed column to move at a high speed, the second fixed column moving at the high speed can drive the second centrifugal block to move, the limiting block at the moment can drive the third inclined surface to pass through the limiting groove successfully, the moving second centrifugal block can push the adjusting steel balls to move, so that the adjusting steel balls can come out of the fourth round hole and enter the output shell, the adjusting steel balls entering the output shell can increase the number of the steel balls for driving, the number of the steel balls for driving at the moment is equal to the number of the adjusting steel balls plus the number of the driving steel balls, the contact area between the steel balls for driving and the inner wall of the output shell is increased, the high-speed input shaft can still drive the output shell to move at the moment, and the purpose of increasing the critical torque value of the torque limiter is achieved; when the rotating speed of the input shaft is increased in sequence, the adjusting steel balls can be sequentially discharged, and the limiting blocks can sequentially enter the limiting grooves, so that the critical torque of the input shaft driving the output shell can be sequentially increased, and the critical torque value of the torque limiter can be increased along with the increase of the rotating speed of the input shaft; when the centrifugal force applied to the second centrifugal block reaches the maximum, the second centrifugal block is blocked at the fourth round hole, so that the steel balls in the output shell cannot enter the fourth round hole; when the rotating speed of the output shell is increased, the speed of the first fixing column is increased, so that the rotating speed of the first centrifugal block is increased, the first centrifugal block moves along the internal thread formed on the third round hole under the action of centrifugal force, the first centrifugal block rotates under the action of the internal thread, the rotating first centrifugal block drives the driving rod to move under the action of the second driving block, the driving rod drives the adjusting block to move under the action of the first driving block, the adjusting block moves towards the inner part of the output shell under the action of the internal thread formed on the adjusting hole, so that the area of the inner wall of the output shell is increased, the contact area between the output shell and the driving steel ball is increased, the critical torque value between the driving steel ball and the adjusting steel ball on the driving output shell is increased, and the rotating speed of the input shaft is increased, the purpose of the critical torque value on the output shell will become large; when the rotation speed of the input shaft is reduced, the adjusting steel balls can enter the fourth round hole under the action of the magnetic force of the second centrifugal block; when a second adjusting steel ball enters, the second inclined block is pushed to move along the second guide groove under the action of the magnetic force and the impact force of the second centrifugal block; the second inclined block can drive the first inclined block to move under the action of the second inclined surface, the first inclined block can drive the connecting rod to move towards the moving groove, the connecting rod can drive the limiting block to move, and therefore the second centrifugal block can be restored to the original position under the action of the second spring, and when the first inclined block and the second inclined block are not under the action of the adjusting steel balls, the first inclined block and the second inclined block can be restored to the original position under the action of the fourth spring and the fifth spring; the first centrifugal block can return under the action of the first spring, and the adjusting block can restore to the original position under the action of the rotation of the first centrifugal block.
Drawings
Fig. 1 is a schematic view of the overall component distribution.
FIG. 2 is a schematic view of a vane mechanism mounting arrangement.
Fig. 3 is a schematic view of an adjustment mechanism mounting structure.
Fig. 4 is a schematic view of an output jacket installation structure.
Fig. 5 is a schematic view of an output case mounting structure.
FIG. 6 is a schematic view of a vane mechanism distribution.
Fig. 7 is a schematic view of a first spring mounting structure.
Fig. 8 is a schematic view of a first drive block mounting arrangement.
Fig. 9 is a schematic view of a first centrifuge block configuration.
Fig. 10 is a schematic view of the structure of the regulating block.
Fig. 11 is a schematic view of a first fixing pillar structure.
Fig. 12 is a schematic view of an adjusting steel ball mounting structure.
Fig. 13 is a schematic view of a second fixing pillar structure.
Fig. 14 is a cross-sectional view of a second stationary post.
Fig. 15 is a schematic view of a second spring mounting structure.
Fig. 16 is a schematic view of a second guide block mounting structure.
FIG. 17 is a schematic diagram of a second centrifuge block configuration.
FIG. 18 is a cross-sectional view of a second centrifugal mass.
Fig. 19 is a schematic view of a fifth spring mounting structure.
Fig. 20 is a schematic view of a first guide block mounting structure.
Number designation in the figures: 1. an output sleeve; 2. an output housing; 3. a fixing ring; 4. an adjustment mechanism; 5. an input shaft; 6. a blade mechanism; 7. driving the steel ball; 9. an adjusting block; 12. an adjustment hole; 13. an accommodating chamber; 14. a first spring; 15. a first centrifugal mass; 16. a first fixed column; 17. a T-shaped ring; 18. a drive rod; 19. a first driving block; 20. a second driving block; 21. a second driving groove; 22. a second circular hole; 23. a T-shaped ring groove; 24. a first drive slot; 25. a first circular hole; 26. a third circular hole; 27. a second fixed column; 28. a second spring; 29. t-shaped strips; 30. a fourth spring; 31. a first swash block; 32. a second swash block; 33. adjusting the steel balls; 34. a third spring; 35. a limiting block; 36. a stopper block; 37. a limiting groove; 38. a sliding groove; 39. a fourth circular hole; 40. a first guide groove; 41. a fifth spring; 42. a first guide block; 43. a second guide block; 44. a connecting rod; 45. a T-shaped slot; 46. a moving groove; 47. a second guide groove; 48. a square groove; 49. a second centrifugal mass; 50. a second inclined plane; 51. a first inclined plane; 52. a third inclined plane; 53. and a fixing ring.
Detailed Description
As shown in fig. 1, 2 and 3, the device comprises an output sleeve 1, an output shell 2, a fixing ring 3, an adjusting mechanism 4, an input shaft 5, a vane mechanism 6, a driving steel ball 7, an adjusting hole 12 and an accommodating cavity 13, wherein as shown in fig. 3, the 6 vane mechanisms 6 are circumferentially and uniformly arranged on the outer circular surface of the input shaft 5; as shown in fig. 1 and 2, the inner circular surface of the fixed ring 3 is arranged on the outer circular surface of the input shaft 5; as shown in fig. 4 and 5, the output housing 2 has a receiving cavity 13; as shown in fig. 4, the outer circumferential surface of the output casing 2 is uniformly provided with 6 adjusting holes 12 in the circumferential direction, each adjusting hole 12 is communicated with the accommodating cavity 13, and the inner circumferential surface of each adjusting hole 12 is provided with internal threads; as shown in fig. 2, the output casing 2 is nested on the input shaft 5, one end of the output casing 2 is installed on the outer circular surface of the fixed ring 3, and the 6 vane mechanisms 6 are all located in the accommodating cavity 13; as shown in fig. 2, a plurality of driving steel balls 7 are arranged in the accommodating cavity 13; the output sleeve 1 is nested on the input shaft 5, and one end of the output sleeve 1 is arranged on the end surface of the output shell 2; as shown in fig. 6, 6 adjusting mechanisms 4 are circumferentially and uniformly installed on the outer circumferential surface of the output housing 2, and the adjusting mechanisms 4 are engaged with the corresponding adjusting holes 12.
As shown in fig. 7, the adjusting mechanism 4 includes an adjusting block 9, a fixing ring 53, a first spring 14, a first centrifugal block 15, a first fixing column 16, a T-shaped ring 17, a driving rod 18, a first driving block 19, a second driving block 20, a second driving groove 21, a second circular hole 22, a T-shaped ring groove 23, a first driving groove 24, a first circular hole 25, and a third circular hole 26, as shown in fig. 11, wherein a third circular hole 26 is formed on an end surface of the first fixing column 16, and an internal thread is formed on an internal circular surface of the third circular hole 26 close to the inner end surface; as shown in fig. 3, the first fixing column 16 is installed on the outer circumferential surface of the output casing 2, and the third circular hole 26 is engaged with the adjusting hole 12; the outer circular surface of the first centrifugal block 15 is provided with an external thread; as shown in fig. 9, a second round hole 22 is formed on the end surface of the first centrifugal block 15; as shown in fig. 9, two second driving grooves 21 are symmetrically formed on the inner circular surface of the second circular hole 22; as shown in fig. 9, a T-shaped ring groove 23 is formed on the end surface of the first centrifugal block 15, on which the second round hole 22 is formed; as shown in fig. 7, the first centrifugal block 15 is installed in the third round hole 26 by matching the external thread formed on the first centrifugal block with the internal thread formed on the third round hole 26; as shown in fig. 8, two second driving blocks 20 are symmetrically installed on the outer circumferential surface of one end of the driving rod 18; as shown in fig. 8, two first driving blocks 19 are symmetrically installed on the outer circumferential surface of the other end of the driving rod 18; as shown in fig. 8, the driving rod 18 is mounted in the third circular hole 26 through the fixing ring 53, and the second driving block 20 is slidably engaged with the second driving groove 21; the outer circular surface of the adjusting block 9 is provided with an external thread; as shown in fig. 10, a first round hole 25 is opened on the end surface of the adjusting block 9; as shown in fig. 10, two first driving grooves 24 are symmetrically formed on the inner circumferential surface of the first circular hole 25; as shown in fig. 7, the adjusting block 9 is mounted in the first fixing column 16 through the matching of the external thread formed on the adjusting block and the internal thread formed on the adjusting hole 12; as shown in fig. 8, the first drive slot 24 is slidably engaged with the first drive block 19; as shown in FIG. 8, the first spring 14 is nested on the driving rod 18, one end of the first spring 14 is mounted on the fixing ring 53, the other end is mounted on the first eccentric block 15 through the T-shaped ring 17, and the T-shaped ring 17 is matched with the T-shaped ring groove 23.
As shown in fig. 12 and 15, the vane mechanism 6 includes a second fixed column 27, a second spring 28, a T-shaped bar 29, a fourth spring 30, a first inclined block 31, a second inclined block 32, an adjusting steel ball 33, a third spring 34, a limit block 35, a limit block 36, a limit groove 37, a moving groove 46, a fourth round hole 39, a first guide groove 40, a fifth spring 41, a first guide block 42, a second guide block 43, a connecting rod 44, a T-shaped groove 45, a sliding groove 38, a second guide groove 47, a square groove 48, a second centrifugal block 49, a second inclined surface 50, a first inclined surface 51, and a third inclined surface 52, as shown in fig. 13 and 14, wherein the end surface of the first fixed column 16 is provided with the fourth round hole 39; as shown in fig. 14, 4 limiting grooves 37 are sequentially formed on the inner circular surface of the first circular hole 25; as shown in fig. 14, two sliding grooves 38 are symmetrically formed on the inner circular surface of the first circular hole 25 near the end surface of the fourth circular hole 39; as shown in fig. 14 and 20, two first guide grooves 40 are symmetrically formed on both side surfaces of the sliding groove 38; the two first guide blocks 42 are symmetrically arranged on two side surfaces of the limiting block 35; as shown in fig. 20, the limiting block 35 is mounted in the sliding groove 38 through the cooperation of the first guide block 42 and the first guide groove 40; as shown in fig. 20, a third spring 34 is installed in the sliding groove 38, one end of the third spring 34 is installed on the end surface of the sliding groove 38, and the other end is installed on the limiting block 35; as shown in fig. 12, 3 adjusting steel balls 33 are sequentially installed in the fourth circular hole 39, each adjusting steel ball 33 is matched with a corresponding limiting groove 37 in the 3 limiting grooves 37 close to the limiting block 35, and the adjusting steel ball 33 far away from the end face of the fourth circular hole 39 is matched with the limiting block 35; as shown in fig. 17 and 18, a square groove 48 is formed on the end surface of the second centrifugal block 49; two second guide grooves 47 are symmetrically formed in two side faces of the square groove 48; the outer circular surface of the second centrifugal block 49 is provided with a moving groove 46, and the moving groove 46 is communicated with the square groove 48; as shown in fig. 17, a T-shaped groove 45 is formed on the end surface of the moving groove 46; the second centrifugal block 49 is arranged in the fourth round hole 39; as shown in fig. 12, the second spring 28 is located in the fourth round hole 39, one end of the second spring 28 is installed on the end face of the fourth round hole 39, and the other end is installed on the second centrifugal block 49; second centrifugal mass 49 is magnetic; as shown in fig. 16 and 19, two second guide blocks 43 are symmetrically installed on two side surfaces of the second inclined block 32, and the second inclined block 32 is provided with a second inclined surface 50; as shown in fig. 12, the second inclined block 32 is installed in the square groove 48 by the cooperation of the second guide block 43 and the second guide groove 47; a fifth spring 41 is arranged in the second guide groove 47, one end of the fifth spring 41 is arranged on the end surface of the second guide groove 47, and the other end of the fifth spring 41 is arranged on the second guide block 43; as shown in fig. 16, the first inclined block 31 has a first inclined surface 51 thereon; the T-shaped block is arranged on the end surface of the first inclined block 31; as shown in fig. 12, the first inclined block 31 is installed in the moving groove 46 by the engagement of the T-shaped block with the T-shaped groove 45, and the first inclined surface 51 is engaged with the second inclined surface 50; as shown in fig. 12, the fourth spring 30 is located in the T-shaped groove 45, one end of the fourth spring 30 is mounted on the end surface of the T-shaped groove 45, and the other end is mounted on the T-shaped block; as shown in fig. 12 and 16, one end of the connecting rod 44 is mounted on the first inclined block 31; the end surface of the stop block 36 is provided with a third inclined surface 52; as shown in fig. 16, one end of the stopper 36 is mounted on the connecting rod 44, and the other end of the stopper 36 is fitted in the stopper groove 37.
The initial position of the stopper 36 is located in the stopper groove 37 near the inner end surface of the fourth circular hole 39.
The fixing ring 53 is welded in the third circular hole 26.
The drive rod 18 is mounted in a stationary ring 53 by means of bearings.
The first inclined surface 51 and the second inclined surface 50 have the same inclination angle.
The diameter of the adjusting ball 33 is equal to the diameter of the driving ball 7.
The connecting rod 44 has no elasticity.
In summary, the following steps:
the 6 vane mechanisms 6 are uniformly arranged on the outer circular surface of the input shaft 5 in the circumferential direction and have the functions of driving the driving steel balls 7 in the output shell 2 to move so that the driving steel balls 7 can drive the output shell 2 to move on one hand and increasing the number of the driving steel balls 7 on the other hand; the inner circle surface of the fixing ring 3 is arranged on the outer circle surface of the input shaft 5 for facilitating the installation of the output shell 2; the output shell 2 is provided with a containing cavity 13 for containing the driving steel balls 7 and the blade mechanism 6; the outer circular surface of the output shell 2 is uniformly provided with 6 adjusting holes 12 in the circumferential direction, each adjusting hole 12 is communicated with the containing cavity 13, and the inner circular surface of each adjusting hole 12 is provided with internal threads for facilitating the installation of the adjusting block 9; the output shell 2 is nested on the input shaft 5, one end of the output shell 2 is arranged on the outer circular surface of the fixing ring 3, and the 6 vane mechanisms 6 are all positioned in the accommodating cavity 13 to facilitate the installation of the output sleeve 1; a plurality of driving steel balls 7 are arranged in the accommodating cavity 13 and are used for driving the output shell 2 to move; the output sleeve 1 is nested on the input shaft 5, and one end of the output sleeve 1 is arranged on the end surface of the output shell 2 and is used for transmitting the motion on the driving shell to the output sleeve 1; the 6 adjusting mechanisms 4 are circumferentially and uniformly arranged on the outer circular surface of the output shell 2, and the adjusting mechanisms 4 and the corresponding adjusting holes 12 are matched to adjust the contact area of the driving shell and the driving steel balls 7, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled.
The adjusting mechanism 4 is used for adjusting the contact area of the driving shell and the driving steel ball 7, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled; a third round hole 26 is formed in the end face of the first fixing column 16, and an internal thread is formed in the inner circular face, close to the inner end face, of the third round hole 26, so that the first centrifugal block 15 can rotate while sliding along the internal thread; the first fixing column 16 is installed on the outer circular surface of the output shell 2, and the third circular hole 26 and the adjusting hole 12 are matched to facilitate installation of the first centrifugal block 15, the adjusting block 9 and the driving rod 18; the external thread arranged on the external circular surface of the first centrifugal block 15 is matched with the internal thread arranged on the third circular hole 26; the end face of the first centrifugal block 15 is provided with a second round hole 22 for accommodating the driving rod 18; the inner circular surface of the second circular hole 22 is symmetrically provided with two second driving grooves 21 for rotating with the second driving block 20 mounted on the driving rod 18, when the first centrifugal block 15 rotates under the action of screw-thread fit, the first centrifugal block 15 transmits the motion to the driving rod 18 through the fit of the second driving block 20 and the second driving grooves 21; the end surface of the first centrifugal block 15 provided with the second round hole 22 is provided with a T-shaped ring groove 23 for facilitating the installation of the first spring 14 and preventing the first spring 14 from influencing the rotary motion of the first centrifugal block 15; the first centrifugal block 15 is installed in the third round hole 26 through matching of an external thread formed on the first centrifugal block and an internal thread formed on the third round hole 26, and the function of recognizing the movement speed of the output shell 2 is realized; the driving rod 18 is installed in the third round hole 26 through the fixing ring 53, and the sliding fit between the second driving block 20 and the second driving groove 21 is used for transmitting the motion of the first centrifugal block 15 to the adjusting block 9; the outer circular surface of the adjusting block 9 is provided with an external thread, so that the adjusting block 9 can conveniently rotate to enter the adjusting hole 12; the end surface of the adjusting block 9 is provided with a first round hole 25 for facilitating the installation of the driving rod 18; the inner circular surface of the first circular hole 25 is symmetrically provided with two first driving grooves 24 for transmitting the motion of the driving rod 18 to the adjusting block 9; the adjusting block 9 is arranged in the first fixing column 16 through the matching of external threads formed on the adjusting block and internal threads formed on the adjusting hole 12 and has the function of adjusting the contact area between the inner wall of the output shell 2 and the driving steel ball 7; the first spring 14 is nested on the driving rod 18, one end of the first spring 14 is mounted on the fixing ring 53, the other end is mounted on the first centrifugal block 15 through the T-shaped ring 17, and the T-shaped ring 17 and the T-shaped ring groove 23 cooperate to apply a restoring force to the first centrifugal block 15.
The blade mechanism 6 has the functions that on one hand, the blade mechanism drives the driving steel balls 7 in the output shell 2 to move so that the driving steel balls 7 can drive the output shell 2 to move, and on the other hand, the blade mechanism increases the number of the driving steel balls 7 so as to increase the critical torque value of the torque limiter; the end surface of the first fixing column 16 is provided with a fourth round hole 39 for accommodating the adjusting steel ball 33 and the second centrifugal block 49; 4 limiting grooves 37 are sequentially formed in the inner circular surface of the first circular hole 25 and are used for limiting the movement of the limiting block 36, and 3 speed stops are formed to limit the movement of the limiting block 36; the inner circular surface of the end face of the first round hole 25 close to the end face of the fourth round hole 39 is symmetrically provided with two sliding grooves 38 for accommodating the limiting block 35; two first guide grooves 40 are symmetrically formed on two side surfaces of the sliding groove 38 and are used for being matched with a first guide block 42 arranged on the limiting block 35, so that the purposes of limiting the movement of the limiting block 35 and guiding the movement of the limiting block 35 are achieved; the limiting block 35 is arranged in the sliding groove 38 through the matching of the first guide block 42 and the first guide groove 40 and is used for limiting and adjusting the movement of the steel ball 33; a third spring 34 is arranged in the sliding groove 38, one end of the third spring 34 is arranged on the end face of the sliding groove 38, and the other end of the third spring is arranged on the limiting block 35 and acts on restoring force for the limiting block 35; the 3 adjusting steel balls 33 are sequentially arranged in the fourth round hole 39, each adjusting steel ball 33 is matched with a corresponding limiting groove 37 in the 3 limiting grooves 37 close to the limiting block 35, and the adjusting steel ball 33 far away from the end face of the fourth round hole 39 is matched with the limiting block 35 to increase the number of steel balls for driving in the output shell 2, so that the aim of adjusting the critical torque value of the torque limiter is fulfilled; the end face of the second centrifugal block 49 is provided with a square groove 48 for accommodating the second inclined block 32; two second guide grooves 47 are symmetrically formed on two side surfaces of the square groove 48 and are in sliding fit with the second guide blocks 43 arranged on the second inclined blocks 32; the outer circular surface of the second centrifugal block 49 is provided with a moving groove 46, and the moving groove 46 is communicated with the square groove 48 to facilitate the movement of the first inclined block 31; the end surface of the movable groove 46 is provided with a T-shaped groove 45 for limiting the movement of the second inclined block 32; the second centrifugal block 49 is arranged in the fourth round hole 39 and is used for identifying the rotating speed of the input shaft 5; the second spring 28 is positioned in the fourth round hole 39, one end of the second spring 28 is installed on the end surface of the fourth round hole 39, and the other end of the second spring 28 is installed on the second centrifugal block 49 and is used for providing restoring force for the second centrifugal block 49; the second centrifugal block 49 has magnetic function to facilitate the attraction and adjustment of the steel ball 33; the second ramp block 32 has a second ramp 50 which acts in cooperation with the first ramp 51 on the first ramp block 31 to transmit the motion on the second ramp block 32 to the first ramp block 31; the second inclined block 32 is arranged in the square groove 48 through the matching of the second guide block 43 and the second guide groove 47, and the function of the second inclined block is to facilitate the driving of the first inclined block 31; a fifth spring 41 is arranged in the second guide groove 47, one end of the fifth spring 41 is arranged on the end surface of the second guide groove 47, and the other end of the fifth spring 41 is arranged on the second guide block 43 and is used for applying restoring force to the second guide block 43; the T-shaped block is arranged on the end surface of the first inclined block 31 and is used for limiting the movement of the first inclined block 31; the first inclined block 31 is arranged in the moving groove 46 through the matching of the T-shaped block and the T-shaped groove 45, and the first inclined surface 51 and the second inclined surface 50 are matched to facilitate the installation of the connecting rod 44; the fourth spring 30 is positioned in the T-shaped groove 45, one end of the fourth spring 30 is arranged on the end surface of the T-shaped groove 45, and the other end of the fourth spring 30 is arranged on the T-shaped block and is used for restoring force of the T-shaped block; one end of the connecting rod 44 is arranged on the first inclined block 31 and is used for connecting the first inclined block 31 and the limiting block 36; the end face of the stopper 36 is provided with a third inclined surface 52, so that the stopper 36 can smoothly pass through the limiting groove 37 under the action of centrifugal force applied to the second centrifugal block 49; one end of the limiting block 36 is mounted on the connecting rod 44, and the other end of the limiting block 36 is matched with the limiting groove 37 to limit the movement of the connecting rod 44, so that the effect of limiting the second centrifugal block 49 is achieved through the first inclined block 31; the function of the limiting block 36 in the limiting groove 37 near the inner end face of the fourth round hole 39 is to facilitate the centrifugal block to recognize a wider range of rotation speed; the same inclination angle of the first inclined surface 51 and the second inclined surface 50 is used for facilitating the tight fit of the first inclined block 31 and the second inclined block 32; the diameter of the steel ball 33 is adjusted to be equal to that of the driving steel ball 7, so that the output shell 2 is stable in the motion process; the connecting rod 44 has no elastic function to successfully transmit the movement of the stopper block 36 to the first swash block 31 or to transmit the movement of the first swash block 31 to the stopper block 36.
In a specific embodiment, when the input shaft 5 moves, the moving input shaft 5 will drive the second fixing column 27 to move, the second fixing column 27 will drive the driving steel ball 7 to move, the driving steel ball 7 will drive the output shell 2 to move, and the moving output shell 2 will drive the output sleeve 1 to move, so that the purpose that the input shaft 5 drives the output sleeve 1 to move is achieved; when the rotation speed of the input shaft 5 is increased, the input shaft 5 will drive the second fixed column 27 to move at a high speed, the second fixed column 27 moving at a high speed will drive the second centrifugal block 49 to move, the stopper 36 at this time will have the third inclined surface 52 to pass through the limiting groove 37 successfully, the moving second centrifugal block 49 will push the adjusting steel ball 33 to move, so that the adjusting steel ball 33 comes out from the fourth round hole 39 and enters the output shell 2, the adjusting steel ball 33 entering the output shell 2 will increase the quantity of steel balls for driving, so that the quantity of the steel balls for driving at the moment is equal to the quantity of the adjusting steel balls 33 plus the quantity of the driving steel balls 7, the contact area between the steel balls for driving and the inner wall of the output shell 2 is increased, and the high-speed input shaft 5 can still drive the output shell 2 to move at the moment, so that the aim of improving the critical torque value of the torque limiter is fulfilled; when the rotating speed of the input shaft 5 is increased in sequence, the adjusting steel balls 33 will come out in sequence, and the limiting blocks 36 will enter the limiting grooves 37 in sequence, so that the critical torque of the input shaft 5 driving the output shell 2 will also be increased in sequence, and the critical torque value of the torque limiter will also be increased along with the increase of the rotating speed of the input shaft 5; when the centrifugal force applied to the second centrifugal block 49 reaches the maximum, the second centrifugal block 49 is blocked at the fourth round hole 39, so that the steel balls in the output shell 2 cannot enter the fourth round hole 39; when the rotating speed of the output housing 2 increases, the speed of the first fixing column 16 will increase, so that the rotating speed of the first centrifugal block 15 increases, at this time, the first centrifugal block 15 will move along the internal thread opened on the third circular hole 26 under the action of the centrifugal force, under the action of the internal thread, the first centrifugal block 15 will rotate, the rotating first centrifugal block 15 will drive the driving rod 18 to move under the action of the second driving block 20, the driving rod 18 will drive the adjusting block 9 to move under the action of the first driving block 19, the adjusting block 9 will move towards the inside of the output housing 2 under the action of the internal thread opened on the adjusting hole 12, so that the area of the inner wall of the output housing 2 becomes larger, at this time, the contact area between the output housing 2 and the driving steel ball 7 will become larger, at this time, the critical torque value of the driving steel ball 7 and the adjusting steel ball 33 driving the output housing 2 will become larger, therefore, the purpose that the critical torque value on the output shell 2 becomes larger along with the increase of the rotating speed of the input shaft 5 is achieved; when the rotation speed of the input shaft 5 is reduced, the adjusting steel ball 33 enters the fourth round hole 39 under the action of the magnetic force of the second centrifugal block 49; when the second adjusting steel ball 33 enters, the second inclined block 32 is pushed to move along the second guide groove 47 under the action of the magnetic force and the impact force of the second centrifugal block 49; the second inclined block 32 pushes the first inclined block 31 to move under the action of the second inclined surface 50, the first inclined block 31 drives the connecting rod 44 to move towards the moving groove 46, the connecting rod 44 drives the limiting block 36 to move, so that the second centrifugal block 49 can restore to the original position under the action of the second spring 28, and when the first inclined block 31 and the second inclined block 32 are not under the action of the adjusting steel ball 33, the first inclined block 31 and the second inclined block 32 can restore to the original position under the action of the fourth spring 30 and the fifth spring 41; the first centrifugal block 15 will return under the action of the first spring 14, and the adjusting block 9 will return to the original position under the action of the rotation of the first centrifugal block 15.

Claims (6)

1. The utility model provides a torque limiter that steel ball driven building was used based on centrifugal block control which characterized in that: the device comprises an output sleeve, an output shell, a fixing ring, an adjusting mechanism, an input shaft, a blade mechanism, a driving steel ball, an adjusting hole and an accommodating cavity, wherein 6 blade mechanisms are uniformly arranged on the outer circular surface of the input shaft in the circumferential direction; the inner circular surface of the fixed ring is arranged on the outer circular surface of the input shaft; the output shell is provided with a containing cavity; the outer circular surface of the output shell is uniformly provided with 6 adjusting holes in the circumferential direction, each adjusting hole is communicated with the accommodating cavity, and the inner circular surface of each adjusting hole is provided with internal threads; the output shell is nested on the input shaft, one end of the output shell is arranged on the outer circular surface of the fixed ring, and the 6 blade mechanisms are all positioned in the accommodating cavity; a plurality of driving steel balls are arranged in the accommodating cavity; the output sleeve is nested on the input shaft, and one end of the output sleeve is arranged on the end face of the output shell; the 6 adjusting mechanisms are uniformly arranged on the outer circular surface of the output shell in the circumferential direction and are matched with the corresponding adjusting holes;
the adjusting mechanism comprises an adjusting block, a fixing ring, a first spring, a first centrifugal block, a first fixing column, a T-shaped ring, a driving rod, a first driving block, a second driving groove, a second round hole, a T-shaped ring groove, a first driving groove, a first round hole and a third round hole, wherein the end face of the first fixing column is provided with the third round hole, and the inner circular face, close to the inner end face, of the third round hole is provided with an internal thread; the first fixing column is arranged on the outer circular surface of the output shell, and the third circular hole is matched with the adjusting hole; the outer circular surface of the first centrifugal block is provided with an external thread; a second round hole is formed in the end face of the first centrifugal block; two second driving grooves are symmetrically formed in the inner circular surface of the second circular hole; the end surface of the first centrifugal block provided with the second round hole is provided with a T-shaped annular groove; the first centrifugal block is arranged in the third round hole in a matching way through an external thread formed on the first centrifugal block and an internal thread formed on the third round hole; the two second driving blocks are symmetrically arranged on the outer circular surface at one end of the driving rod; the two first driving blocks are symmetrically arranged on the outer circular surface at the other end of the driving rod; the driving rod is arranged in the third round hole through the fixing ring, and the second driving block is in sliding fit with the second driving groove; the outer circle surface of the adjusting block is provided with an external thread; a first round hole is formed in the end face of the adjusting block; two first driving grooves are symmetrically formed in the inner circular surface of the first circular hole; the adjusting block is arranged in the first fixing column in a matching way through an external thread formed on the adjusting block and an internal thread formed on the adjusting hole; the first driving groove is in sliding fit with the first driving block; the first spring is nested on the driving rod, one end of the first spring is arranged on the fixed ring, the other end of the first spring is arranged on the first centrifugal block through a T-shaped ring, and the T-shaped ring is matched with the T-shaped ring groove;
the blade mechanism comprises a second fixed column, a second spring, a T-shaped strip, a fourth spring, a first inclined block, a second inclined block, an adjusting steel ball, a third spring, a limiting block, a limiting groove, a moving groove, a fourth round hole, a first guide groove, a fifth spring, a first guide block, a second guide block, a connecting rod, a T-shaped groove, a sliding groove, a second guide groove, a square groove, a second centrifugal block, a second inclined plane, a first inclined plane and a third inclined plane, wherein the end surface of the first fixed column is provided with the fourth round hole; 4 limiting grooves are sequentially formed in the inner circular surface of the first circular hole; two sliding grooves are symmetrically formed in the inner circular surface of one end, close to the end face of the fourth round hole, of the first round hole; two first guide grooves are symmetrically formed in the two side faces of the sliding groove; the two first guide blocks are symmetrically arranged on two side surfaces of the limiting block; the limiting block is arranged in the sliding groove through the matching of the first guide block and the first guide groove; a third spring is arranged in the sliding groove, one end of the third spring is arranged on the end face of the sliding groove, and the other end of the third spring is arranged on the limiting block; the 3 adjusting steel balls are sequentially arranged in the fourth round hole, each adjusting steel ball is matched with a corresponding limiting groove in the 3 limiting grooves close to the limiting block, and the adjusting steel ball far away from the end face of the fourth round hole is matched with the limiting block; a square groove is formed on the end face of the second centrifugal block; two second guide grooves are symmetrically formed in the two side faces of the square groove; a moving groove is formed in the outer circular surface of the second centrifugal block and communicated with the square groove; a T-shaped groove is formed in the end face of the movable groove; the second centrifugal block is arranged in the fourth round hole; the second spring is positioned in the fourth round hole, one end of the second spring is installed on the end face of the fourth round hole, and the other end of the second spring is installed on the second centrifugal block; the second centrifugal block has magnetism; the two second guide blocks are symmetrically arranged on two side surfaces of the second inclined block, and the second inclined block is provided with a second inclined surface; the second inclined block is arranged in the square groove through the matching of the second guide block and the second guide groove; a fifth spring is arranged in the second guide groove, one end of the fifth spring is arranged on the end face of the second guide groove, and the other end of the fifth spring is arranged on the second guide block; the first inclined block is provided with a first inclined surface; the T-shaped block is arranged on the end face of the first inclined block; the first inclined block is arranged in the moving groove through the matching of the T-shaped block and the T-shaped groove, and the first inclined plane is matched with the second inclined plane; the fourth spring is positioned in the T-shaped groove, one end of the fourth spring is arranged on the end face of the T-shaped groove, and the other end of the fourth spring is arranged on the T-shaped block; one end of the connecting rod is arranged on the first inclined block; a third inclined plane is arranged on the end surface of the limiting block; one end of the limiting block is arranged on the connecting rod, and the other end of the limiting block is matched with the limiting groove;
the initial position of the limiting block is positioned in a limiting groove close to the inner end face of the fourth round hole.
2. The torque limiter for building use based on centrifugal block control steel ball drive of claim 1, wherein: the fixing ring is welded in the third round hole.
3. The torque limiter for building use based on centrifugal block control steel ball drive of claim 1, wherein: the driving rod is arranged in the fixed ring through a bearing.
4. The torque limiter for building use based on centrifugal block control steel ball drive of claim 1, wherein: the inclination angles of the first inclined plane and the second inclined plane are the same.
5. The torque limiter for building use based on centrifugal block control steel ball drive of claim 1, wherein: the diameter of the adjusting steel ball is equal to that of the driving steel ball.
6. The torque limiter for building use based on centrifugal block control steel ball drive of claim 1, wherein: the connecting rod has no elasticity.
CN201811099041.5A 2017-12-05 2018-09-20 Torque limiter used for building and based on centrifugal block control steel ball driving Active CN108869570B (en)

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CN205823985U (en) * 2016-06-28 2016-12-21 徐工（辽宁）机械有限公司 Automatic-reset torque limiter
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