CN218642302U - Device for forbidding reverse operation braking of large-scale traveling crane - Google Patents
Device for forbidding reverse operation braking of large-scale traveling crane Download PDFInfo
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- CN218642302U CN218642302U CN202222339982.XU CN202222339982U CN218642302U CN 218642302 U CN218642302 U CN 218642302U CN 202222339982 U CN202222339982 U CN 202222339982U CN 218642302 U CN218642302 U CN 218642302U
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- spline
- contact switch
- motor
- reverse operation
- shaft
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Abstract
The utility model relates to a device of reverse operation brake is forbidden in large-scale driving, spline slide mechanism is set to large-scale driving motor's one end, utilize the spline cover rotatory when static and the different characteristics of axial friction between the integral key shaft, and respectively be equipped with a reset spring and contact switch respectively at spline housing both sides face, make drive arrangement at the operation in-process, the last electric key to opposite direction operation control of operating handle is inefficacy, realize the unable reverse operation of large-scale driving operation in-process, the problem of damaging the driving part because of operation reverse operation face has been solved. The utility model has the advantages of design benefit, easy operation, operation stability and control effect are good.
Description
Technical Field
The utility model relates to a device of reverse operation brake is forbidden to large-scale driving belongs to mechatronic technical field.
Background
The travelling crane is commonly used in large-scale projects such as workshops, subways, viaducts and the like, and is widely applied. In modern heavy industrial production, large-scale driving is more popular, often sets up many driving in a workshop to satisfy the lift by crane and the transport of heavy object, this just requires that there are many driving operating personnel. In the actual production process, an operator is prone to error, particularly when the moving distance exceeds the actual required travel, the standard operation program is to move in the reverse direction after braking, however, some operators directly perform reverse operation, and although the traveling crane can return after emergency braking, the traveling crane brings great damage to various running parts of the traveling crane, especially when heavy objects are hung, the damage is more serious, and the failure rate of the traveling crane is very high.
Disclosure of Invention
The utility model provides a device of reverse operation brake is forbidden to large-scale driving adds the self-lock device of a switching-over operation on driving drive equipment, realizes the driving in the purpose of operation in-process reverse operation brake suddenly.
The utility model discloses a following technical scheme implements, a device that reverse operation brake is forbidden to large-scale driving, includes drive arrangement and driving, drive arrangement includes motor and brake valve lever, the one end drive of motor shaft the driving, the motor is the drive of positive reverse rotation the driving side-to-side movement, brake valve lever is last to be equipped with a plurality of not key of function, its characterized in that:
a spline shaft is arranged at the other end of the motor rotating shaft, a spline housing is arranged on the spline shaft, and the spline housing is meshed with the spline shaft and can slide on the spline shaft;
two side surfaces of the spline housing are respectively provided with a return spring which controls the position of the spline housing on the spline shaft;
two sides of the spline sleeve are respectively provided with an electromagnet, and the spline sleeve is driven to axially slide on the spline shaft;
the two side surfaces of the spline housing are respectively provided with a contact switch, the contact switch arranged on the left side surface is used for switching on or switching off a control circuit of the motor running rightwards, and the contact switch arranged on the right side surface is used for switching on or switching off the control circuit of the motor running leftwards.
Furthermore, the number of the electromagnets is one, and the spline is pulled to be sleeved on the spline shaft to slide leftwards or rightwards.
Further, the contact switch is a travel contact switch.
The utility model discloses set the one end of large-scale driving motor to spline slide mechanism, utilize the spline cover rotatory when static with the spline shaft between the different characteristics of axial friction to cooperation reset spring and control contact switch make drive arrangement in the operation process, the last key that moves to opposite direction of operating handle became invalid, realizes the purpose of the unable reverse operation of large-scale driving operation in-process.
The method has the advantages of ingenious design, simplicity in operation, stability in operation, good control effect and the like.
Drawings
FIG. 1 is a position state diagram of each component of the device in a running static state;
FIG. 2 is a position state diagram of each component of the control device when the traveling crane runs leftwards;
FIG. 3 is a position state diagram of each component of the control device in the process of braking when the vehicle runs leftwards.
In the attached drawing, 1 is a spline shaft, 2 is a spline sleeve, 3 is a return spring, A and B are electromagnets, D is a motor, and a and B are travel switch contact switches.
Detailed Description
The invention will be further explained with reference to the following drawings:
as shown in the attached figure 1, one end of a rotating shaft of a motor D is provided with a spline shaft 1, a spline housing 2 is sleeved on the spline shaft 1, the spline housing 2 is meshed with the spline shaft 1, two side surfaces of the spline housing 2 are respectively provided with a return spring 3, and the return springs 3 control the position of the spline housing 2 on the spline shaft 1; the left side face of the spline housing 2 is provided with an electromagnet A, the electromagnet A pulls the spline housing 2 to slide rightwards on the spline shaft 1, the right side face of the spline housing 2 is provided with an electromagnet B, and the electromagnet B pulls the spline housing 2 to slide leftwards on the spline shaft 1. The left side surface of the spline housing 2 is provided with a contact switch a, the right side surface of the spline housing 2 is provided with a contact switch b, the contact switch a is used for switching on or switching off a control circuit of the motor running rightwards, and the contact switch b is used for switching on or switching off a control circuit of the motor running leftwards.
As shown in the attached figure 2, a key for controlling the traveling crane to move leftwards is pressed down on the control handle, the motor D rotates forwards to drive the traveling crane to move leftwards, the electromagnet B on the right side of the spline housing 2 is electrified, the electromagnet B drives the spline housing 2 to slide leftwards on the spline shaft 1, the reset spring 3 on the left side of the spline housing 2 is compressed, the contact switch a on the left side of the spline housing 2 is disconnected, a control power supply for controlling the traveling crane to move rightwards is disconnected, and the key for controlling the traveling crane to move rightwards on the control handle is invalid.
As shown in the attached figure 3, when a key controlling leftward movement on the control handle is loosened, the electromagnet B on the right side is powered off and reset, the motor D is powered off and decelerates, the spline housing 2 rotates along with the motor D, the friction force between the spline housing 2 and the spline shaft 1 is larger than the elastic force of the reset spring 3 on the left side, and the spline housing 2 cannot be reset.
Along with the gradual deceleration of the motor D to the stop rotation, the elasticity of the left return spring 3 is greater than the friction force between the spline housing 2 and the spline shaft 1, and the spline housing 2 returns to the initial position shown in the attached drawing 1.
The motor D is driven to move to the right by reversing the electricity, and the process of preventing the reverse operation in the operation process is the same as the process of preventing the reverse operation in the left operation process by driving the traveling vehicle by forward rotation of the electricity, which is not described herein again.
Claims (3)
1. The utility model provides a device of reverse operation brake is forbidden in large-scale driving, includes drive arrangement and driving, drive arrangement includes motor and brake valve lever, the one end drive of motor shaft the driving, the motor is positive reverse rotation drive the driving side-to-side movement, the last key that is equipped with a plurality of different functions of brake valve lever, its characterized in that:
the other end of the motor rotating shaft is provided with a spline shaft, a spline sleeve is arranged on the spline shaft, and the spline sleeve is meshed with the spline shaft and can slide on the spline shaft;
the two side faces of the spline housing are provided with return springs which control the position of the spline housing on the spline shaft;
two side surfaces of the spline sleeve are respectively provided with an electromagnet, and the spline sleeve is driven to axially slide on the spline shaft;
the two side faces of the spline housing are respectively provided with a contact switch, the contact switch arranged on the left side face is used for switching on or off a control circuit of the motor running rightwards, and the contact switch arranged on the right side face is used for switching on or off a control circuit of the motor running leftwards.
2. The device for prohibiting reverse operation of a large traveling crane to brake according to claim 1, wherein: the number of the electromagnets is one, and the spline is shifted to be sleeved on the spline shaft to slide leftwards or rightwards.
3. The device for prohibiting reverse operation of a large traveling crane to brake according to claim 1, wherein: the contact switch is a travel contact switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222339982.XU CN218642302U (en) | 2022-09-03 | 2022-09-03 | Device for forbidding reverse operation braking of large-scale traveling crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222339982.XU CN218642302U (en) | 2022-09-03 | 2022-09-03 | Device for forbidding reverse operation braking of large-scale traveling crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218642302U true CN218642302U (en) | 2023-03-17 |
Family
ID=85490840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222339982.XU Active CN218642302U (en) | 2022-09-03 | 2022-09-03 | Device for forbidding reverse operation braking of large-scale traveling crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218642302U (en) |
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2022
- 2022-09-03 CN CN202222339982.XU patent/CN218642302U/en active Active
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