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CN-224229130-U - High-speed jaw one-way clutch

CN224229130UCN 224229130 UCN224229130 UCN 224229130UCN-224229130-U

Abstract

A high-speed jaw one-way clutch comprises an outer sleeve, an L-shaped bushing, a clutch disc, a tightly fixed handle, a lower shaft sleeve, a jaw disc and an elastic cylindrical pin, wherein an outer thread of the lower shaft sleeve is sleeved on a screw hole of the outer sleeve, a stepped hole at the upper end of the lower shaft sleeve is sleeved on the lower end of the jaw disc, the elastic cylindrical pin is connected, a jaw clutch tooth is attached to a roller frame of the clutch disc, the upper end of the clutch disc is sleeved on an inner hole of the L-shaped bushing, the upper side of the large end of the clutch disc is attached to the lower side of the large end of the L-shaped bushing, the small end of the L-shaped bushing is sleeved on an inner hole at the upper side of the outer sleeve, the upper side of the large end of the L-shaped bushing is attached to a step at the upper side of the outer sleeve, and the tightly fixed handle is sleeved on a screw hole A of the lower shaft sleeve and a screw hole B of the outer sleeve. The utility model has the advantages that the roller and the clutch teeth are rolling pairs, the friction force is small, the required axial component force is small, the abrasion is greatly reduced, the rigid collision between the roller and the jaw disc is avoided by nylon materials, the impact load can be effectively absorbed by the pressure spring and the elastic cylindrical pin, the clutch frequency and the separation reliability can be considered, the running speed is effectively improved, and the utility model also has the functions of a safety clutch and an elastic coupling.

Inventors

  • Li Feimu

Assignees

  • 四川禅通科技有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (10)

  1. 1. A high-speed jaw unidirectional clutch comprises an outer sleeve, an L-shaped bushing, a clutch disc, a tightening handle, a lower shaft sleeve, a jaw disc and an elastic cylindrical pin, wherein an external thread at the upper end of the lower shaft sleeve is sleeved on a screw hole at the lower end of the outer sleeve, a stepped hole at the upper end of the lower shaft sleeve is sleeved on the lower end of the jaw disc, the upper end of the large end of the clutch disc is sleeved on an inner hole of the L-shaped bushing, the upper side of the large end of the clutch disc is attached to the lower side of the large end of the L-shaped bushing, the small end of the L-shaped bushing is sleeved on the inner hole of the upper side of the outer sleeve, the upper side of the large end of the L-shaped bushing is attached to a step at the upper side of the outer sleeve, and the high-speed unidirectional clutch is characterized in that the elastic cylindrical pin penetrates through a jaw disc through hole F and a lower shaft sleeve through hole G, a clutch tooth at the upper end of the jaw disc is attached to a roller frame at the lower end of the clutch disc, and the tightening handle is sleeved on the screw hole A of the lower shaft sleeve and the screw hole B respectively.
  2. 2. The high-speed jaw one-way clutch of claim 1, wherein the inner thread section of the outer sleeve is provided with screw holes B which are annularly and uniformly distributed.
  3. 3. The high-speed dog one-way clutch according to claim 1 or 2, wherein the left end of the tightening handle is a cone, the left small section is a screw, and the surface of the right large section is knurled.
  4. 4. The high-speed jaw one-way clutch according to claim 3, wherein the annular uniform through holes G are formed in the step holes at the upper end of the lower shaft sleeve, and the annular uniform screw holes A are formed in the outer circle of the lower step cylinder.
  5. 5. The high-speed jaw one-way clutch of claim 4, wherein the middle section of the jaw plate is provided with annular uniformly distributed through holes F, one side of the upper clutch teeth is provided with an inclined step with a pressure angle beta, the other side is provided with a semicircular step r, and the radius and the height of the semicircular step r are consistent with the radius of the outer edge of the roller.
  6. 6. The high-speed jaw one-way clutch of claim 5, wherein the clutch disc comprises an upper shaft sleeve, a cone end set screw, a pressure spring, an opening sleeve, a cylinder end set screw and a roller frame, wherein the upper side of the roller frame is sleeved on the inner side of the opening sleeve, the opening sleeve is sleeved on the lower side of a spring seat hole C of the upper shaft sleeve, a straight notch of the opening sleeve is aligned with a key groove of the roller frame, the key groove of the roller frame is aligned with a screw hole D of the upper shaft sleeve, the threaded end of the cylinder end set screw is sleeved on the screw hole D of the upper shaft sleeve, the cylinder end is positioned in the key groove of the roller frame, the pressure spring is positioned on the inner side of the spring seat hole C, the lower end of the pressure spring is abutted against the upper end of the roller frame, the inner side of the upper end is sleeved with a cone end set screw, and the cone end set screw is sleeved on the upper side of the spring seat hole C of the upper shaft sleeve.
  7. 7. The high-speed dog clutch as set forth in claim 6 wherein the split sleeve is a cylindrical sleeve having a lateral cut-out adapted to mate with the roller frame keyway and the cylindrical end of the cylindrical end set screw.
  8. 8. The high-speed jaw one-way clutch of claim 7, wherein the roller frame comprises a shifting fork, a bolt for a reaming hole, a gasket, a sleeve, a roller and a locking nut, the roller is positioned between two side plates at the lower side of the shifting fork, a middle hole of the roller is aligned with a pin hole E of two side plates of the shifting fork, the gasket is positioned at the inner side of the two side plates of the shifting fork, two side surfaces of the roller, the middle hole of the gasket is aligned with the middle hole of the roller and the pin hole E of the two side plates of the shifting fork, a polished rod section of the bolt for the reaming hole is sleeved on the middle hole of the gasket and the sleeve, the middle hole of the roller and the pin hole E of the two side plates of the shifting fork, and the threaded end is sleeved with the locking nut.
  9. 9. The high-speed jaw one-way clutch of claim 8, wherein the upper side of the shifting fork is a cylinder, the side surface of the cylinder is provided with a straight key groove matched with the cylinder end of the cylinder end set screw, the lower side of the shifting fork is a rectangular flat plate, two sides of the rectangular flat plate are respectively provided with a side plate, the upper sides of the two side plates are rectangular, the lower sides of the two side plates are semicircular, the center of the semicircle is a pin hole E, the left view center line of the pin hole E is mutually overlapped with the left view center line of the straight key groove, and the pin holes E of the two side plates are in mirror symmetry.
  10. 10. The high-speed jaw one-way clutch according to claim 9, wherein the outer edge of the upper shaft sleeve is a cylinder with a large lower part and a small upper part, spring seat holes C which are annularly distributed according to a virtual circle phi are formed in the upper end of the lower side step, screw holes D are annularly distributed along the outer edge of the lower side step and aligned with the spring seat holes C one by one, and the center line of the screw holes D is collinearly coincident with the normal line of the virtual circle phi.

Description

High-speed jaw one-way clutch Technical Field The utility model belongs to the field of clutches, and particularly relates to a jaw clutch. Background The jaw clutch generally comprises a pair of jaw discs, two end shaft sleeves, a pressure spring and other components, wherein the two end shaft sleeves are in mechanical engagement for transmitting power, the two end shaft sleeves are respectively connected with a driving shaft and a driven shaft, the function of transmitting power is realized through the jaw discs, clutch teeth on the jaw discs are mutually embedded or separated to achieve the clutch of the driving shaft and the driven shaft, and the saw-tooth clutch teeth have larger axial component force when reversing, push away the jaw discs and skid, so that the jaw clutch is commonly used for a jaw unidirectional clutch. Compared with a roller type one-way clutch, the jaw type one-way clutch can bear higher torque and rotating speed, can realize faster slipping and unloading and higher slipping frequency, and has the advantages that axial component force of clutch teeth is correspondingly increased when in overload, so that a jaw disc is pushed open to slip, and the function of a safety clutch is realized. The clutch teeth of the two jaw plates are in surface contact, the friction pair is low, the friction force is large, the contact surface of the clutch teeth has moderate pressure angle, the pressure angle is large, the axial component force is large, the power transmission performance is reduced, the pressure angle is small, the axial component force is small, the friction force is difficult to overcome, the sliding difficulty is reduced, the separation reliability is reduced, the power transmission performance and the separation reliability are contradicted, overload slip can play a role in overload protection on parts to be protected, but ‌ transmission failure and other parts are possibly damaged, the starting load and the starting frequency of the overload slip are limited, the structure also has the advantages that the pressure spring is difficult to provide uniform pressure for each tooth due to the fact that the friction force between each tooth is uneven, the load caused by the uneven and the local component force is reduced, the defects seriously limit the running speed of the jaw type one-way clutch, the friction force cannot be matched with the corresponding friction pliers, and the friction pliers are also required to be assembled and disassembled by a corresponding pipe wrench, and the friction pliers are also required to be assembled and disassembled by a corresponding friction wrench. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide the high-speed jaw one-way clutch which can realize reliable power transmission and separation and can effectively buffer. The technical scheme is that the high-speed jaw unidirectional clutch comprises an outer sleeve, an L-shaped bushing, a clutch disc, a fastening handle, a lower shaft sleeve, a jaw disc and an elastic cylindrical pin, wherein external threads at the upper end of the lower shaft sleeve are sleeved on a screw hole at the lower end of the outer sleeve, a step hole at the upper end of the lower shaft sleeve is sleeved on the lower end of the jaw disc, the elastic cylindrical pin penetrates through a jaw disc through hole F and a lower shaft sleeve through hole G to elastically connect the jaw disc and the lower shaft sleeve, the upper end of the clutch disc is sleeved on a roller frame at the lower end of the clutch disc, the upper end of the clutch disc is sleeved on an inner hole of the L-shaped bushing, the upper side of the large end of the clutch disc is sleeved on the lower side of the large end of the L-shaped bushing, the small end of the L-shaped bushing is sleeved on an inner hole at the upper side of the outer sleeve, the upper side of the large end of the L-shaped bushing is sleeved on a step at the upper side of the outer sleeve, and the fastening handle is sleeved on a screw hole A of the lower shaft sleeve and a screw hole B of the outer sleeve respectively. The inner hole of the outer sleeve is a step hole, the inner hole at the lower side is large, and the inner hole at the upper side is small; the lower end of the lower inner hole is provided with an internal thread, the upper end is provided with a straight hole, and the internal thread section is provided with screw holes B which are uniformly distributed in a ring shape. The upper end of the L-shaped bushing is a small end, the lower end is a large end, and the cross section is L-shaped; the material is phenolic cloth clamping plate. The clutch disc comprises an upper shaft sleeve, a cone end set screw, a pressure spring, an opening sleeve, a cylinder end set screw and a roller frame, wherein the upper side of the roller frame is sleeved on the inner side of the opening sleeve, the opening sleeve is sleeved on the