Hydraulic clutch mechanism for swash plate type plunger motor

Abstract

The utility model relates to a hydraulic clutch mechanism for a swash plate type plunger motor, which comprises an end cover shell and a clutch gasket embedded in the end cover shell, and a clutch pin is arranged on one side of the clutch gasket. A clutch assembly used for pushing the clutch pin to push the clutch gasket out of the end cover shell is arranged on one side of the clutch pin and comprises a clutch rod, one side of the lower end of the clutch rod is an arc face, and the other side of the lower end of the clutch rod is a vertical flat face. An operating handle used for controlling the brake pin to rotate is arranged on the top of the clutch rod, and a reset assembly is further arranged on the clutch rod. The hydraulic clutch is matched with mechanical braking, compared with pure mechanical zero-position cut-off output, the hydraulic clutch is small in rotation inertia and fast in response, and the safety coefficient in walking driving application is high. Compared with hydraulic zero-position cut-off output, the hydraulic clutch is simple in structure and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic braking, and relates to a hydraulic clutch mechanism for a swash plate type plunger motor. BACKGROUND

[0002] A conventional hydraulic cut-off output mode controls the swash plate angle of a pump to be at a middle position, so that the output flow of the pump is zero, and the motor is indirectly stopped from rotating. The braking response time of this braking mode is relatively long, and the sudden stop of the motor core under the inertia condition can cause the hydraulic system to be impacted and be in a vacuum state, which can cause oil film friction and damage to the flow distribution surface. SUMMARY

[0003] The utility model discloses a hydraulic clutch mechanism for a swash plate type plunger motor, which can realize the hydraulic clutch of a hydrostatic drive device and the no-speed output of the motor.

[0004] The utility model discloses a hydraulic clutch mechanism for a swash plate type plunger motor, which can realize the hydraulic clutch of a hydrostatic drive device and the no-speed output of the motor.

[0005] In the hydraulic clutch mechanism for a swash plate type plunger motor, the reset assembly includes a check ring arranged on the clutch rod and a spring sleeved on the clutch rod, and the two ends of the spring are fixedly connected with the check ring and the clutch rod, respectively.

[0006] In the hydraulic clutch mechanism for a swash plate type plunger motor, a through hole is formed in the operating handle for the insertion of the clutch rod, a horizontal positioning hole is formed in the clutch rod, a mounting groove is formed in the top of the operating handle and communicates with the through hole, and a fixing pin is arranged in the mounting groove.

[0007] In the hydraulic clutch mechanism for a swash plate type plunger motor, a ring groove is formed in the clutch rod for clamping the check ring.

[0008] In the hydraulic clutch mechanism for the swash plate type plunger motor, the operating handle and the clutch rod are connected and fixed by the split pin.

[0009] Compared with the prior art, the hydraulic clutch mechanism has the advantages of:

[0010] 1. Compared with the pure mechanical control in the pump, the hydraulic clutch mechanism can improve the safety of walking braking;

[0011] 2. Compared with the valve hydraulic zero position control in the pump, the hydraulic clutch mechanism has a simple structure and low manufacturing cost;

[0012] 3. In special scenarios, when the walking device needs to be towed, the mechanism in the clutch working position can protect the hydraulic motor from damage. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the schematic diagram of the explosion of the utility model;

[0014] Figure 2 is the schematic diagram of the installation of the utility model;

[0015] Figure 3 is the schematic diagram of the shell installation with the end cover of the utility model;

[0016] Figure 4 is the schematic diagram of the shell installation structure with the transmission of the utility model.

[0017] In the figure, 1, end cover shell; 2, clutch gasket; 3, clutch pin; 4, clutch rod; 5, operating handle; 6, check ring; 7, spring; 8, motor cylinder; 9, through hole; 10, positioning hole; 11, split pin; 12, installation groove; 13, transmission shell. DETAILED DESCRIPTION

[0018] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments. EMBODIMENT

[0019] As Figures 1 to 4 shown, a hydraulic clutch mechanism for a swash plate type plunger motor, comprising an end cover shell 1 and a clutch gasket 2 embedded in the end cover shell 1, one side of the clutch gasket 2 is provided with a clutch pin 3, one side of the clutch pin 3 is provided with a clutch assembly for pushing the clutch pin 3 to push the clutch gasket 2 out of the end cover shell 1, the clutch assembly comprises a clutch rod 4, one side of the lower end of the clutch rod 4 is a circular arc surface, the other side is a vertical plane, the top of the clutch rod 4 is provided with an operating handle 5 for controlling the rotation of the clutch pin 3, and the operating handle 5 is in interference fit with the clutch rod 4.

[0020] As Figure 4 shown, the hydraulic clutch mechanism is installed behind the transmission housing 13, the operating handle 5 is located on the transmission housing 13, and the remaining components are installed inside the transmission housing 13, a through hole 9 is formed in the operating handle 5 for inserting the clutch lever 4, a horizontal positioning hole 10 is formed in the clutch lever 4, an installation slot 12 is formed in the top of the operating handle 5 and communicates with the through hole 9, a fixing pin 11 is arranged in the installation slot 12, and when the clutch lever 4 is inserted into the through hole 9, the fixing pin 11 is inserted from one side of the installation slot 12 and passes through the positioning hole 10 in the brake lever 4 to limit the brake lever 4 longitudinally.

[0021] A reset assembly is further arranged on the brake lever 4, the reset assembly comprises a check ring 6 arranged on the clutch lever 4 and a spring 7 sleeved on the brake lever 4, and the two ends of the spring 7 are fixedly connected with the check ring 6 and the clutch lever 4, respectively.

[0022] An annular groove for clamping the check ring 6 is formed in the clutch lever 4.

[0023] Working principle: when the hydraulic clutch mechanism is in a non-working mode, the flat surface of the clutch lever 4 is in a working position, the clutch washer 2 and the clutch pin 3 are reset to the right under the action of the spring 7, and the clutch pin 3 abuts against the flat surface of the clutch lever 4. At this time, the flow matching surface of the motor cylinder 8 and the flow matching surface of the end cover are in contact, the motor is driven by the working flow of the pump to work normally and output torque.

[0024] When the hydraulic clutch mechanism is in a working mode, the rotating operating handle 5 drives the clutch lever 4 to make the convex round of the clutch lever 4 in a working position, and pushes the clutch pin 3 to open the clutch washer 2 and the motor cylinder 8 to the left, so that the flow matching surface of the motor cylinder 8 and the flow matching surface of the end cover are separated, the high-pressure oil in the motor window of the end cover is completely discharged into the housing, and the motor stops rotating quickly because of no flow input.

[0025] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A hydraulic clutch mechanism for a swash plate type piston motor, characterized by, The utility model provides a kind of end cap shell (1) and the clutch washer (2) embedded in end cap shell (1), the clutch washer (2) is provided with clutch pin (3) on one side, the clutch pin (3) is provided with clutch assembly for pushing clutch pin (3) and pushing clutch washer (2) out of end cap shell (1) on one side, the clutch assembly includes clutch lever (4), the lower end of the clutch lever (4) is arc surface on one side, the other side is vertical flat surface, the top of the clutch lever (4) is provided with operating handle (5) for controlling the rotation of clutch pin (3), and reset assembly is further provided on the clutch lever (4).

2. A hydraulic clutch mechanism for a swash plate type piston motor according to claim 1, characterized by: The reset assembly includes retaining ring (6) arranged on clutch lever (4) and spring (7) sleeved on clutch lever (4), and the two ends of the spring (7) are fixedly connected with retaining ring (6) and clutch lever (4) respectively.

3. A hydraulic clutch mechanism for a swash plate type piston motor according to claim 2, characterized by: Operating handle (5) is provided with through hole (9) for inserting clutch lever (4), and the clutch lever (4) is further provided with horizontal positioning hole (10) penetrating through, and the top of the operating handle (5) is further provided with mounting groove (12) communicated with through hole (9), and open pin (11) is arranged in mounting groove (12), when the clutch lever (4) is inserted into through hole (9), open pin (11) is inserted from one side of mounting groove (12) and passes through positioning hole (10) on the clutch lever (4) to limit the clutch lever (4).

4. A hydraulic clutch mechanism for a swash plate type piston motor according to claim 3, characterized by: Clutch lever (4) is provided with ring groove for clamping retaining ring (6).

5. A hydraulic clutch mechanism for a swash plate type piston motor according to claim 4, characterized by: Operating handle (5) and clutch lever (4) are fixed by open pin through interference fit.

Images