CN217421930U - Jaw clutch of plate chain type elevator - Google Patents
Jaw clutch of plate chain type elevator Download PDFInfo
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- CN217421930U CN217421930U CN202221387979.9U CN202221387979U CN217421930U CN 217421930 U CN217421930 U CN 217421930U CN 202221387979 U CN202221387979 U CN 202221387979U CN 217421930 U CN217421930 U CN 217421930U
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- clutch
- connecting rod
- half clutch
- tooth
- plate chain
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Abstract
A jaw clutch of a plate chain type elevator belongs to the technical field of elevators. Including initiative half clutch (4), driven half clutch (3) and drive the shift fork that driven clutch (3) removed, its characterized in that: the saw teeth are inclined teeth; the automatic lifting device is characterized in that a connecting rod (2) hinged with the shifting fork is arranged, an air cylinder (1) is arranged on one side of the connecting rod (2), a piston rod of the air cylinder (1) is hinged with the connecting rod (2), a travel switch (5) is further arranged on the other side of the connecting rod (2), and a contact of the travel switch (5) is in sliding connection with the connecting rod (2). In the jaw clutch of the plate chain type hoister, the automatic clutching of the driving half clutch and the driven half clutch is realized, and the saw teeth are designed into the inclined teeth, so that the strength of each saw tooth is improved, the axial binding force between the driven half clutch and the driving half clutch can be ensured during working, and the disengagement caused by frequent starting and stopping is prevented.
Description
Technical Field
A jaw clutch of a plate chain type elevator belongs to the technical field of elevators.
Background
The plate chain type hoister is a common hoister in the market, a clutch is arranged in the plate chain type hoister, and the clutch in the traditional plate chain type hoister is generally realized by adopting a jaw clutch. The conventional plate chain type hoister generally has the following defects:
(1) the tooth profile of the internal clutch of the plate-chain type hoister is generally rectangular teeth, the clutch with the rectangular teeth has the advantages of large transmission torque, capability of realizing transmission of bidirectional torque and the like, but the engagement and disengagement between the driven half clutch and the driving half clutch are difficult, and the clutch is more suitable for manual engagement, so that the driven half clutch and the driving half clutch are engaged and disengaged at each time, the manual completion of workers is required, and when the position of the clutch is special, the switching efficiency is lower.
(2) Because the rectangular teeth can transmit bidirectional torque, the driven half clutch is easy to damage under the condition that the driving half clutch rotates reversely or is not completely disengaged due to misoperation, and meanwhile, the driving half clutch is also damaged due to the reaction force of the driving half clutch, so that equipment accidents are caused.
(3) The clutch with rectangular teeth is generally used in the transmission which is not frequently clutched, and can be engaged only at a static or extremely low rotating speed, and when the driven half clutch and the driving half clutch are required to be frequently engaged and disengaged, the abrasion of the saw teeth is easily caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the automatic clutch of the driving half clutch and the driven half clutch is realized, the saw teeth are designed into the inclined teeth, the strength of each saw tooth is improved, the axial binding force between the driven half clutch and the driving half clutch can be ensured during working, and the jaw clutch of the plate chain type hoister, which is disengaged due to frequent start and stop, is prevented.
The utility model provides a technical scheme that its technical problem adopted is: this jaw clutch of plate chain lifting machine, including the shift fork that initiative half clutch, driven half clutch and drive driven clutch removed, on the relative terminal surface of initiative half clutch and driven half clutch respectively the equipartition a plurality of sawtooth that have intermeshing, its characterized in that: the saw teeth are oblique teeth, the tooth top width of each oblique tooth is smaller than the tooth bottom width of each oblique tooth, and the tooth top width of each oblique tooth is smaller than the distance between two adjacent oblique teeth;
the automatic control device is characterized in that a connecting rod hinged with the shifting fork is arranged, an air cylinder is arranged on one side of the connecting rod, a piston rod of the air cylinder is hinged with the connecting rod, a travel switch is further arranged on the other side of the connecting rod, a contact of the travel switch is in sliding connection with the connecting rod, a contact of the travel switch is connected with an input end of a controller, and the controller controls the working state of the air cylinder.
Preferably, the air cylinder is provided with an electromagnetic valve, the output end of the controller is connected with the control signal input end of the electromagnetic valve, the air inlet end of the electromagnetic valve is connected with an external air source, and the two air outlet ends of the electromagnetic valve are respectively connected with the two air inlet ends of the air cylinder through pipelines.
Preferably, a base is arranged at the bottom of the connecting rod, the bottom of the connecting rod is hinged to the base, and the top of the connecting rod is located on the outer ring of the shifting fork and hinged to the shifting fork.
Preferably, the lower part of the connecting rod is provided with a sliding chute penetrating through the front end face and the rear end face of the connecting rod, and a pulley is arranged in the sliding chute; and one side of the connecting rod facing the travel switch is also provided with a through hole which is communicated with the sliding groove and has the same length with the sliding groove, and a contact of the travel switch penetrates through the through hole, enters the sliding groove and is rotatably connected with the pulley.
Preferably, two tooth surfaces of the inclined teeth arranged on the end surface of the driving half clutch or the driven half clutch and the corresponding end surface form an obtuse angle and an acute angle respectively, and the included angle between the acute angle tooth surface and the axis of the corresponding end surface is 10-15 degrees.
Preferably, the acute angled tooth face is angled at 12 ° to the corresponding end face axis.
Preferably, an indicator light connected to the output end of the controller and a human-computer interface connected to the input and output port of the controller are further provided.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
in this jaw clutch of board chain elevator, realized initiative half clutch, driven half clutch automatic clutch, designed the sawtooth into oblique tooth simultaneously, and the crest width of each oblique tooth is less than its tooth bottom width, has improved the intensity of each sawtooth, consequently can guarantee at during operation axial cohesion between driven half clutch and the initiative half clutch, prevents the disengagement that frequent start-stop leads to.
The crest width of each inclined tooth is smaller than the root width of each inclined tooth, and the included angle between the acute-angle end face of each inclined tooth and the axis of the driven half clutch (or the driving half clutch) is 10-15 degrees, so that the driven half clutch and the driving half clutch can be conveniently meshed. Although the inclined teeth adopted in the jaw clutch can only realize one-way transmission between the driven half clutch and the driving half clutch, when the driving half clutch is started due to reasons, the driven half clutch and the driving half clutch are forced to be separated, and the clutch is protected.
Through setting up travel switch, monitor the swing position of connecting rod, guaranteed that initiative half clutch, driven half clutch are hungry reliable separation and reunion.
Drawings
Fig. 1 is a schematic structural diagram of a jaw clutch of a plate chain type elevator.
Fig. 2 is a tooth-shaped section view of a jaw clutch of the plate chain type hoister.
Fig. 3 is a block diagram of a dog clutch control circuit for a plate chain hoist.
Wherein: 1. cylinder 2, connecting rod 3, driven half clutch 4, initiative half clutch 5, travel switch 6, base 7, solenoid valve.
Detailed Description
Fig. 1 to 3 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 3.
As shown in fig. 1, a dog clutch (hereinafter referred to as a dog clutch) of a plate-chain type elevator includes a driving half clutch 4 and a driven half clutch 3, the driving half clutch 4 and the driven half clutch 3 are disposed opposite to each other, and teeth engaged with each other are respectively disposed on opposite surfaces of the driving half clutch 4 and the driven half clutch 3. As in the prior art, the driving half clutch 4 is connected to a driving mechanism (e.g., a driving motor), and the driving half clutch 4 is driven by the driving motor to rotate. The driven half clutch 3 is connected with a shifting fork (not shown in the figure), when the shifting fork drives the driven half clutch 3 to be jointed with the driving half clutch 4, the driven half clutch 3 is meshed with the saw teeth on the opposite surface of the driving half clutch 4, and the driving half clutch 4 drives the driven half clutch 3 to rotate; when the shifting fork drives the driven half clutch 3 to be separated from the driving half clutch 4, the driven half clutch stops rotating.
Referring to fig. 2, in the jaw clutch of the present invention, the cross-section of the saw tooth provided on the opposite surface of the driven half clutch 3 and the driving half clutch 4 is an oblique tooth, two tooth surfaces of the oblique tooth and the surface of the driven half clutch 3 (or the driving half clutch 4) respectively form an obtuse angle and an acute angle, and the sum of the obtuse angle and the acute angle is greater than 180 ° (i.e. the crest width of each oblique tooth is smaller than the root width thereof), and the crest width of each oblique tooth is smaller than the interdental distance between two adjacent oblique teeth. The angle (angle shown in fig. 2) between the tooth surface in which the inclined teeth form an acute angle with the surface of the driven half-clutch 3 and the axis of the driven half-clutch 3 (or the driving half-clutch 4)α) Is 10 DEG to 15 DEG, preferably 12 deg.
As can be seen from the above, in the jaw clutch of the present invention, the inclined teeth shown in fig. 2 are used, and the crest width of each inclined tooth is smaller than the root width thereof, so that the strength of each tooth is increased, and therefore, the axial coupling force between the driven half clutch 3 and the driving half clutch 4 can be ensured during operation, and disengagement caused by frequent start and stop can be prevented. Meanwhile, the crest width of each inclined tooth is smaller than the root width of each inclined tooth, and the included angle between the acute-angle end face of each inclined tooth and the axis of the driven half clutch 3 (or the driving half clutch 4) is 10-15 degrees, so that the driven half clutch 3 and the driving half clutch 4 can be meshed conveniently. Although the inclined teeth adopted in the jaw clutch can only realize one-way transmission between the driven half clutch 3 and the driving half clutch 4, when the driving half clutch 4 rotates reversely due to reasons, the driven half clutch 3 and the driving half clutch 4 are forced to be separated, and the clutch is protected.
In this jaw clutch, be provided with connecting rod 2, 2 tops of connecting rod are located the outer lane of shift fork and are articulated with the shift fork, the bottom and the base 6 of connecting rod 2 are articulated, be provided with cylinder 1 in one side of connecting rod 2, the piston shaft of cylinder 1 articulates on the upper portion of connecting rod 2, be provided with solenoid valve 7 in one side of cylinder 1, the inlet end of solenoid valve 7 passes through the pipeline and links to each other with outside air supply (not drawn in the figure), two ends of giving vent to anger of solenoid valve 7 link to each other with two inlet ends of cylinder 1 through the pipeline respectively, when solenoid valve 7 circular telegram switches over, outside air supply inserts in the different inlet ends in front and back of cylinder 1, realize the action of cylinder 1 piston rod.
The lower part of the connecting rod 2 is provided with a chute penetrating through the front end face and the rear end face of the connecting rod 2, the left side (or the right side) of the connecting rod 2 is also provided with a through hole which is communicated with the chute and has the same length with the chute, and a pulley is arranged in the chute. One side of the connecting rod 2 is also connected with a travel switch 5, and a contact of the travel switch 5 penetrates through the through hole of the connecting rod 2, then enters the sliding groove and is rotationally connected with the pulley in the sliding groove.
As shown in fig. 3, the signal output end of the travel switch 5 is connected to the signal input end of a controller (such as a PLC or a single chip), the input/output port of the controller is bidirectionally connected to the human-computer interface, and the output port of the controller is respectively connected to the indicator light and the solenoid valve 7.
The specific working process and working principle are as follows:
when the driven half clutch 3 is required to be connected with the driving half clutch 4, a worker inputs an instruction through a human-computer interface, the controller controls the action of the electromagnetic valve 7, the piston shaft of the cylinder 1 is output through the switching of the gas circuit, the connecting rod 2 is driven to rotate by taking the base 6 as a shaft, and meanwhile the driven half clutch 3 is driven to be gradually close to the driving half clutch 4 through the connecting rod 2 and the shifting fork. When the connecting rod 2 rotates, a contact of the travel switch 5 is pushed to act through a pulley in a chute in the connecting rod, after the driven half clutch 3 is jointed with the driving half clutch 4, the travel switch 5 sends a signal to the controller, the controller controls the electromagnetic valve 7 to act, the air cylinder 1 stops outputting, the controller simultaneously sends a signal to a human-machine interface or/and an indicator lamp, and the human-machine interface or/and the indicator lamp are controlled to indicate the clutch state of the driven half clutch 3 and the driving half clutch 4.
When the driven half clutch 3 needs to be separated from the driving half clutch 4, a worker inputs an instruction through a human-computer interface, the controller controls the electromagnetic valve 7 to act, the piston shaft of the air cylinder 1 retracts through the switching of the air circuit, and the connecting rod 2 drives the driven half clutch 3 to gradually start the driving half clutch 4. When the driven half clutch 3 is completely separated from the driving half clutch 4, the state of a signal sent by the travel switch 5 to the controller is changed, the controller controls the electromagnetic valve 7 to act, the air cylinder 1 stops retracting, the controller simultaneously sends a signal to the human-computer interface or/and the indicator light, and the human-computer interface or/and the indicator light are controlled to indicate the clutch state of the driven half clutch 3 and the driving half clutch 4.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a jaw clutch of plate chain lifting machine, includes the shift fork that initiative half clutch (4), driven half clutch (3) and driven half clutch (3) removed, on the relative terminal surface of initiative half clutch (4) and driven half clutch (3) respectively the equipartition a plurality of sawtooth that have intermeshing, its characterized in that: the saw teeth are oblique teeth, the tooth top width of each oblique tooth is smaller than the tooth bottom width of each oblique tooth, and the tooth top width of each oblique tooth is smaller than the distance between two adjacent oblique teeth;
the automatic control device is characterized in that a connecting rod (2) is hinged to the shifting fork, an air cylinder (1) is arranged on one side of the connecting rod (2), a piston rod of the air cylinder (1) is hinged to the connecting rod (2), a travel switch (5) is further arranged on the other side of the connecting rod (2), a contact of the travel switch (5) is connected with the connecting rod (2) in a sliding mode, a contact of the travel switch (5) is connected with an input end of a controller, and the controller controls the working state of the air cylinder (1).
2. The jaw clutch of the plate chain hoist of claim 1, wherein: the air cylinder is provided with an electromagnetic valve (7), the output end of the controller is connected with the control signal input end of the electromagnetic valve (7), the air inlet end of the electromagnetic valve (7) is connected with an external air source, and the two air outlet ends of the electromagnetic valve (7) are connected with the two air inlet ends of the air cylinder (1) through pipelines respectively.
3. The jaw clutch of the plate chain hoist of claim 1, wherein: the bottom of the connecting rod (2) is provided with a base (6), the bottom of the connecting rod (2) is hinged to the base (6), and the top of the connecting rod (2) is located on the outer ring of the shifting fork and hinged to the shifting fork.
4. The jaw clutch of the plate chain hoist of claim 1, wherein: the lower part of the connecting rod (2) is provided with a chute which penetrates through the front end face and the rear end face of the connecting rod (2), and a pulley is arranged in the chute; one side of the connecting rod (2) facing the travel switch (5) is also provided with a through hole which is communicated with the sliding groove and has the same length with the sliding groove, and a contact of the travel switch (5) penetrates through the through hole, enters the sliding groove and is rotatably connected with the pulley.
5. The jaw clutch of the plate chain hoist of claim 1, wherein: two tooth surfaces of the inclined teeth arranged on the end surface of the driving half clutch (4) or the driven half clutch (3) form an obtuse angle and an acute angle with the corresponding end surface respectively, and the included angle between the acute angle tooth surface and the axis of the corresponding end surface is 10-15 degrees.
6. The jaw clutch of the plate chain hoist of claim 5, wherein: the included angle between the acute angle tooth surface and the axis of the corresponding end surface is 12 degrees.
7. The jaw clutch of the plate chain hoist as claimed in claim 1 or 2, wherein: and the system is also provided with an indicator light connected with the output end of the controller and a human-computer interface connected with the input and output port of the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221387979.9U CN217421930U (en) | 2022-06-06 | 2022-06-06 | Jaw clutch of plate chain type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221387979.9U CN217421930U (en) | 2022-06-06 | 2022-06-06 | Jaw clutch of plate chain type elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421930U true CN217421930U (en) | 2022-09-13 |
Family
ID=83171959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221387979.9U Active CN217421930U (en) | 2022-06-06 | 2022-06-06 | Jaw clutch of plate chain type elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421930U (en) |
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2022
- 2022-06-06 CN CN202221387979.9U patent/CN217421930U/en active Active
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