Manual damping control circuit for movable arm of loading machine
By designing a manual shock absorption control circuit for loading motor arm, using components such as boom shock absorption switch, relay, solenoid valve, etc., the loader shaking problem is solved, and smoother driving and lower costs are achieved.
Patent Information
- Application Number
- CN202420732155.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The loader shakes due to rigid connections during driving, resulting in poor driving comfort. The existing boom shock absorbing system circuit is complex and costly, making it difficult to manufacture and install.
A manual shock absorption control circuit for loading motor arm is designed, using boom shock absorption switch, boom shock absorption relay, shock absorption solenoid valve, hydraulic oil circuit and pressure switch, etc., to control the circuit through boom shock absorption relay, simplify the circuit structure and reduce costs.
It realizes the stability of the loader during driving, reduces shaking, and has a smoother driving, simple and reliable circuit, and reduces the cost of use.
Smart Images
Figure CN222594989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loader shock absorption, in particular to a manual shock absorption control circuit for a loader boom. Background Art
[0002] The wheel support of the loader is rigidly connected to the frame. When the loader is driving on an uneven road, the whole vehicle will shake with the front axle as the center, sometimes causing the rear axle to leave the ground. At this time, the driver's body swings with the whole vehicle, and the driving comfort is very poor. In order to reduce the shaking of the loader, most loaders are equipped with a boom shock absorption system. This boom shock absorption system is mostly controlled by a controller. The large chamber of the boom cylinder is connected to the hydraulic accumulator through a hydraulic oil circuit, and the force of the boom cylinder during driving is transmitted to the accumulator to reduce the shaking of the whole vehicle. However, the circuit of this control system is relatively complex and the cost is high, making it difficult to manufacture and install. Summary of the invention
[0003] The utility model aims to provide a manual shock absorbing control circuit for a loader boom which can make the loader run more smoothly and has low cost, simple circuit and high reliability in view of the above problems.
[0004] In order to achieve the above-mentioned purpose, the utility model discloses a manual shock absorption control circuit for a loader boom, which includes a boom shock absorption switch, a boom shock absorption relay, a shock absorption solenoid valve, and a hydraulic oil circuit. The boom shock absorption switch input end is connected to a power supply, and the output end is grounded through the boom shock absorption relay signal end. The shock absorption solenoid valve input end is connected to a power supply through the boom shock absorption relay switch input end, and the output end is grounded. The shock absorption solenoid valve is installed on the hydraulic oil circuit, and a pressure switch is also connected to the hydraulic oil circuit. The pressure switch input end is connected to a power supply, and the output end is connected to a feedback component. The manual shock absorption control circuit for a loader boom improves the stability of the loader during operation, and uses the boom shock absorption relay to control the circuit, making the circuit simpler, more reliable, and reducing the use cost.
[0005] Preferably, the feedback component includes an instrument panel, the signal input end of the instrument panel is connected to the output end of the pressure switch, the input end of the instrument panel is connected to the power supply, and the output end is grounded. The feedback component feeds back the shock absorption signal, and displays the shock absorption symbol on the instrument panel to remind the driver, which is more convenient to use.
[0006] Preferably, the feedback component further includes a feedback relay, the instrument panel signal input end is connected to the pressure switch through the switch end of the feedback relay, the input end of the feedback relay signal end is connected to the pressure switch, and the output end is grounded. The existence of the feedback relay makes the connection between the oil circuit and the instrument panel more convenient.
[0007] Preferably, the hydraulic oil circuit is provided with an oil circuit tee, the hydraulic oil circuit passes through two passages of the oil circuit tee, and the other passage of the oil circuit tee is connected to the pressure switch. The setting of the oil circuit tee facilitates the connection between the hydraulic oil circuit and the pressure switch.
[0008] Preferably, the power source is a battery, which provides electrical energy to the circuit.
[0009] Preferably, an instrument fuse is connected between the battery output terminal and the instrument panel input terminal to ensure the safety of the circuit.
[0010] To sum up, the beneficial effect of the utility model is that the manual shock absorption control circuit of the loader boom can reduce the shaking of the loader during driving and make the driving more stable, and the circuit uses a boom shock absorption relay for control, which makes the circuit simpler, thereby reducing costs and improving the reliability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall circuit of the utility model.
[0012] In the figure, 1, power supply; 2, boom shock absorption switch; 3, boom shock absorption relay; 4, feedback relay; 5, shock absorption solenoid valve; 6, hydraulic oil circuit; 7, pressure switch; 8, oil circuit tee; 9, instrument panel; 10, instrument fuse. DETAILED DESCRIPTION
[0013] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0014] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0015] See attached Figure 1A manual shock absorption control circuit for a loader boom includes a boom shock absorption switch 2, a boom shock absorption relay 3, a shock absorption solenoid valve 5, and a hydraulic oil circuit 6. The boom shock absorption switch 2 has an input end connected to a power supply 1, and an output end grounded through the boom shock absorption relay 3 signal end. The shock absorption solenoid valve 5 has an input end connected to a power supply 1 through the boom shock absorption relay 3 switch end, and an output end grounded. The shock absorption solenoid valve 5 is installed on the hydraulic oil circuit 6, and a pressure switch 7 is also connected to the hydraulic oil circuit 6. The pressure switch 7 has an input end connected to the power supply 1, and an output end connected to a feedback component. When the loader travels to a bumpy section, the boom shock absorption switch 2 is manually opened, and the shock absorption solenoid valve 5 is opened and the pressure switch 7 is closed through the control of the boom shock absorption relay 3. At the same time, the large chamber of the boom oil cylinder is connected to the hydraulic accumulator through the hydraulic oil circuit 6, and the force of the boom oil cylinder during driving is transmitted to the accumulator to reduce the shaking of the whole vehicle. After the pressure switch 7 is closed, the feedback component starts to work; after the pressure switch 7 is opened, the feedback component ends.
[0016] See attached Figure 1 The feedback component includes an instrument panel 9, the signal input end of the instrument panel 9 is connected to the output end of the pressure switch 7, the input end of the instrument panel 9 is connected to the power supply 1, and the output end is grounded. The feedback component also includes a feedback relay 4, the signal input end of the instrument panel 9 is connected to the pressure switch 7 through the switch end of the feedback relay 4, the input end of the signal end of the feedback relay 4 is connected to the pressure switch 7, and the output end is grounded. The power supply 1 supplies power to the instrument panel 9. When the boom shock absorption switch 2 is turned off, the signal end of the boom shock absorption relay 3 is energized, so that the switch end of the boom shock absorption relay 3 is closed, the shock absorption solenoid valve 5 is energized, the hydraulic oil circuit 6 is opened, and the pressure switch 7 is closed when the pressure value is reached, and then the signal end of the feedback relay 4 is energized, the switch end of the feedback relay 4 is closed, and a signal is transmitted, which is transmitted to the instrument panel 9 through the signal input end of the instrument panel 9. The instrument panel 9 displays the boom shock absorption symbol to remind the driver.
[0017] See attached Figure 1 , an oil circuit tee 8 is provided on the hydraulic oil circuit 6, the hydraulic oil circuit 6 passes through two passages of the oil circuit tee 8, and the other passage of the oil circuit tee 8 is connected to the pressure switch 7. The hydraulic oil circuit 6 passes through the two opening passages of the oil circuit tee 8 facing each other, and the other opening is threadedly connected to the pressure switch 7. The pressure switch 7 detects the pressure of the hydraulic oil circuit 6, and the pressure switch 7 is closed when the pressure reaches the threshold.
[0018] See attached Figure 1 The power source 1 is a battery. An instrument fuse 10 is connected between the output end of the battery and the input end of the instrument panel 9. The setting of the instrument fuse 10 can ensure that the circuit is safer.
[0019] See attached Figure 1When the vehicle is traveling on a bumpy road, the boom shock absorber switch 2 is manually closed so that the boom shock absorber relay 3 signal end circuit is energized, the boom shock absorber relay 3 switch end is closed, the shock absorber solenoid valve 5 is energized to open the hydraulic oil circuit 6, so that the large chamber of the boom cylinder and the hydraulic accumulator oil circuit are connected, and the shock absorber function is turned on. The pressure switch 7 detects the oil pressure behind the shock absorber solenoid valve 5. After reaching the pressure threshold, the pressure switch 7 is closed, the feedback relay 4 signal end circuit is energized, so that the feedback relay 4 switch end is closed, the instrument panel 9 receives a signal, and the instrument panel 9 displays the boom shock absorber symbol, and the reminder function is turned on. After the boom shock absorber switch 2 is turned on, the shock absorber work is completed.
[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A manual damping control circuit for a loader boom, comprising a boom damping switch (2), characterized in that: It also includes a boom shock-absorbing relay (3), a shock-absorbing solenoid valve (5), and a hydraulic oil circuit (6); the boom shock-absorbing switch (2) has an input end connected to a power supply (1), and an output end connected to ground via a boom shock-absorbing relay (3) signal end; the shock-absorbing solenoid valve (5) has an input end connected to a power supply (1) via a boom shock-absorbing relay (3) switch input end, and an output end connected to ground; the shock-absorbing solenoid valve (5) is installed on the hydraulic oil circuit (6); a pressure switch (7) is also connected to the hydraulic oil circuit (6); the pressure switch (7) has an input end connected to a power supply (1), and an output end connected to a feedback component.
2. The manual shock absorption control circuit of the loader boom according to claim 1, characterized in that: The feedback component comprises an instrument panel (9), a signal input end of the instrument panel (9) is connected to an output end of the pressure switch (7), the input end of the instrument panel (9) is connected to a power supply (1), and the output end is grounded.
3. The manual shock absorption control circuit of the loader boom according to claim 2, characterized in that: The feedback component further comprises a feedback relay (4); the signal input end of the instrument panel (9) is connected to the pressure switch (7) via the switch end of the feedback relay (4); the input end of the signal end of the feedback relay (4) is connected to the pressure switch (7) and the output end is grounded.
4. The manual shock absorption control circuit of the loader boom according to claim 1, characterized in that: The hydraulic oil circuit (6) is provided with an oil circuit tee (8), the hydraulic oil circuit (6) passes through two passages of the oil circuit tee (8), and the other passage of the oil circuit tee (8) is connected to a pressure switch (7).
5. The manual shock absorption control circuit of the loader boom according to claim 1, characterized in that: The power source (1) is a battery.
6. The manual shock absorption control circuit of the loader boom according to claim 5, characterized in that: An instrument fuse (10) is connected between the output end of the battery and the input end of the instrument panel (9).