阅读说明：本技术 一种高速液压马达 (High-speed hydraulic motor ) 是由 陈立文 周哲 付秀丽 于 2019-10-12 设计创作，主要内容包括：一种高速液压马达,所述前端盖与后壳体通过固定螺栓连接,后壳体后端分别设置有进油口和回油口,前端盖中心位置开设有通孔,所述通孔一侧开设有轴孔,后壳体上分别开设有槽孔A与槽孔B,所述槽孔A与槽孔B相交,其相交重叠处连通,槽孔A内旋转设置有输出齿轮轴,输出齿轮轴另一端与前端盖旋转连接,槽孔B内旋转设置有主动齿轮轴,主动齿轮轴另一端旋转连接轴孔,且输出齿轮轴与主动齿轮轴啮合,主动齿轮轴和输出齿轮轴的齿槽内分别开设有泄油节流孔。本发明的有益效果在于：齿槽内开设油节流孔,有效控制高速旋转齿间啮合产生的积压；前端盖内顶端面上卸荷槽的泄油首先防止了壳体内的积压,有效减少摩擦并带走热量,保证了齿轮的高速旋转。(The utility model provides a high-speed hydraulic motor, the front end housing passes through fixing bolt with the back casing and is connected, and back casing rear end is provided with oil inlet and oil return opening respectively, and the through-hole has been seted up to front end housing central point, the shaft hole has been seted up to through-hole one side, has seted up slotted hole A and slotted hole B on the back casing respectively, slotted hole A intersects with slotted hole B, and the crossing department of overlapping intercommunication thereof, and slotted hole A internal rotation is provided with the output gear axle, and the output gear axle other end and front end housing swivelling joint, and slotted hole B internal rotation are provided with driving gear axle, and driving gear axle other end swivelling joint shaft hole, and output gear axle and driving gear shaft meshing have seted up. The invention has the beneficial effects that: an oil throttling hole is formed in the tooth socket, so that backlog generated by meshing between the high-speed rotating teeth is effectively controlled; the oil drainage of the unloading groove on the top end face in the front end cover firstly prevents the overstock in the shell, effectively reduces friction and takes away heat, and ensures the high-speed rotation of the gear.)

1. A high speed hydraulic motor characterized by: comprises a front end cover (1), a rear shell (2), a fixing bolt (3), an output gear shaft (4), a driving gear shaft (5), an oil inlet (6) and an oil return port (7), wherein the front end cover (1) is connected with the rear shell (2) through the fixing bolt (3), the rear end of the rear shell (2) is respectively provided with the oil inlet (6) and the oil return port (7), the center of the front end cover (1) is provided with a through hole (8), one side of the through hole (8) is provided with an axle hole (9), the rear shell (2) is respectively provided with a slotted hole A (10) and a slotted hole B (11), the slotted hole A (10) is intersected with the slotted hole B (11) and communicated with the intersected overlapped part, the slotted hole A (10) is rotatably provided with the output gear shaft (4), the other end of the output gear shaft (4) is rotatably connected with the front end cover (1), and the top end of the output gear shaft (4) passes through the, slotted hole B (11) internal rotation is provided with driving gear axle (5), driving gear axle (5) other end swivelling joint shaft hole (9), and output gear axle (4) and driving gear axle (5) meshing, draining orifice (12) have been seted up respectively in the tooth's socket of driving gear axle (5) and output gear axle (4).

2. A high speed hydraulic motor as recited in claim 1, wherein: an unloading groove (13) is arranged on the inner top wall of the front end cover (1), namely between the through hole (8) and the shaft hole (9).

3. A high speed hydraulic motor as recited in claim 1, wherein: the front end cover (1) is provided with a through positioning hole (14), the rear shell (2) is correspondingly provided with a positioning groove (15), and the positioning hole (14) is connected with the positioning groove (15) through a positioning pin (16).

4. A high speed hydraulic motor as claimed in claim 3, wherein: and a sealing plug (17) is arranged at an outer opening of the positioning hole (14).

5. A high speed hydraulic motor as recited in claim 1, wherein: and a sealing combined gasket (18) is arranged between the fixing bolt (3) and the front end cover (1).

6. A high speed hydraulic motor as recited in claim 1, wherein: and mounting bolts (19) which extend outwards are embedded in the front end cover (1).

7. A high speed hydraulic motor as recited in claim 1, wherein: the side wall of the rear shell (2) is provided with a yielding annular groove (20), and an oil plug (21) is arranged at an outer opening of the yielding annular groove (20).

8. A high speed hydraulic motor as claimed in any one of claims 1 to 7, wherein: the inner circumferential wall of the through hole (8), namely the output gear shaft (4), is sleeved with a high-pressure oil seal (22), and the outer circumferential wall of the high-pressure oil seal (22) is provided with a sealing ring (2201).

Technical Field

The invention relates to the technical field of hydraulic transmission, in particular to a high-speed hydraulic motor.

Background

The hydraulic motor is a hydraulic actuating element which does continuous rotary motion and outputs torque in hydraulic transmission, the gear hydraulic motor widely used by the hydraulic motor at present is mostly a medium-low speed motor, two ends of a gear of the gear hydraulic motor are supported by bearings, so that the whole volume of the motor is larger, the gear hydraulic motor is not suitable for being used in occasions with harsh space requirements, the service life of a common bearing is short under the conditions of high temperature, high speed, high load and high frequency vibration, the service life of the whole hydraulic motor is further influenced, a tooth root closed cavity can be formed in the process of meshing two gears when the gear hydraulic motor operates, so that closed high pressure is formed, and the gear is meshed with a certain gap, so that the closed high pressure can be released from the gap when the gear rotates at low speed, but the high pressure of the gear cannot be released in time when the gear rotates at high speed.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a high-speed hydraulic motor, includes front end housing, back casing, fixing bolt, output gear axle, driving gear axle, oil inlet and oil return opening, the front end housing passes through fixing bolt with the back casing and is connected, back casing rear end is provided with oil inlet and oil return opening respectively, oil inlet and oil return opening connect oil feed passageway and oil return passageway in the back casing respectively, its characterized in that: the oil drainage device is characterized in that a through hole is formed in the center of the front end cover, a slotted hole A and a slotted hole B are formed in the rear shell respectively, the slotted hole A is intersected with the slotted hole B, the intersected overlapped part of the slotted hole A is communicated with the inner rotation part, an output gear shaft is arranged in the slotted hole A, the other end of the output gear shaft is rotatably connected with the front end cover, the top end of the output gear shaft penetrates through the through hole and extends to the outer side of the front end cover, a driving gear shaft is arranged in the slotted hole B in a rotating mode, the output gear shaft is meshed with the driving gear shaft, and.

Furthermore, a shaft hole is formed in one side of the through hole, the driving gear shaft is rotatably arranged in the shaft hole, and an unloading groove is formed in the inner top wall of the front end cover, namely between the through hole and the shaft hole, so that oil accumulation on end faces between teeth is prevented.

Furthermore, an oil storage tank is respectively arranged on the through hole and the shaft hole on the inner top wall of the front end cover. The driving gear shaft and the output gear shaft can be lubricated better, so that an oil film is formed to keep sufficient lubricating and heat dissipating effects.

Furthermore, the front end cover is provided with a through positioning hole, the rear shell is correspondingly provided with a positioning groove, and the positioning hole is connected with the positioning groove through a positioning pin.

Furthermore, the outer opening of the positioning hole is provided with a plug.

Furthermore, a sealing combination gasket is arranged between the fixing bolt and the front end cover.

Furthermore, a fixed connecting device for installing and fixing the motor is arranged on the front end face of the front end cover.

Furthermore, a yielding annular groove is formed in the outer circumferential wall of the rear shell, an oil duct communicated with the inner cavity of the rear shell is formed in the yielding annular groove, and an oil plug is arranged at an outer opening of the oil duct.

Furthermore, a high-pressure oil seal is sleeved on the inner circumferential wall of the through hole, namely the output gear shaft, and a sealing ring is arranged on the outer circumferential wall of the high-pressure oil seal.

The working principle of the invention is as follows: high-pressure oil enters one side of the two gear shafts in the rear shell through the oil inlet joint, the high-pressure driving gear rotates, the oil flows to the other side through the gear meshing part and is discharged through the oil return joint, and the gear rotates to output power through the output gear shaft.

The invention has the beneficial effects that: 1. the invention provides a high-speed hydraulic motor which is suitable for field operation, has small volume and is matched with a hydraulic source of engineering machinery. 2. Oil throttle holes are formed in the grooves of the output gear shaft and the driving gear shaft, so that the backlog generated by meshing between high-speed rotating teeth is effectively controlled; on the terminal surface in the front end housing, be provided with the off-load groove between output gear axle and the driving gear axle promptly, high-pressure oil permeates the off-load groove through gear shaft and casing clearance, then joins the flow direction oil return joint through inside oil duct, discharges the motor, and the draining of off-load groove has at first prevented the overstock in the casing, guarantees to be full of fluid all the time moreover between gear shaft and the casing, effectively reduces the friction and takes away the heat, has guaranteed the high-speed rotation of gear.

Drawings

Fig. 1 is a schematic longitudinal sectional structure of the present invention.

Fig. 2 is a schematic diagram of the transverse cross-sectional structure of the present invention.

Fig. 3 is a schematic view of the front end cap structure of the present invention.

Fig. 4 is a structural diagram of the rear case of the present invention.

Fig. 5 is a schematic view of the output gear shaft and the driving gear shaft structure of the present invention.

Fig. 6 is a rear view of the rear housing of the present invention.

Fig. 7 is a front view of the rear housing of the present invention.

The oil-water separation device comprises a front end cover 1, a rear shell 2, a fixing bolt 3, an output gear shaft 4, a driving gear shaft 5, an oil inlet 6, an oil return opening 7, a through hole 8, a shaft hole 9, a slotted hole A10, a slotted hole B11, an oil drainage throttling hole 12, an unloading groove 13, a positioning hole 14, a positioning groove 15, a positioning pin 16, a plug 17, a sealing combined pad 18, a mounting bolt 19, a abdicating annular groove 20, an oil plug 21, a high-pressure oil seal 22, a sealing ring 2201 and an oil storage groove 23.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

Referring to fig. 1, the high-speed hydraulic motor according to this embodiment includes a front end cover 1, a rear housing 2, a fixing bolt 3, an output gear shaft 4, a driving gear shaft 5, an oil inlet 6, and an oil return port 7, where the front end cover 1 is connected to the rear housing 2 via the fixing bolt 3, the rear end of the rear housing 2 is provided with the oil inlet 6 and the oil return port 7, the front end cover 1 is provided with a through hole 8 at a center position, one side of the through hole 8 is provided with an axle hole 9, the rear housing 2 is provided with a slot a10 and a slot B11, the slot a10 is intersected with the slot B11, an intersection and overlapping portion of the intersection is communicated, the slot a10 is rotatably provided with the output gear shaft 4, the other end of the output gear shaft 4 is rotatably connected to the front end cover 1, and a top end of the output gear shaft 4 extends to an outer side of the front end cover 1 through the through, the other end of the driving gear shaft 5 is rotatably connected with the shaft hole 9, the output gear shaft 4 is meshed with the driving gear shaft 5, and oil drainage orifices 12 are respectively formed in tooth grooves of the driving gear shaft 5 and the output gear shaft 4. An unloading groove 13 is arranged on the inner top wall of the front end cover 1, namely between the through hole 8 and the shaft hole 9, so that oil accumulation on end faces between teeth is prevented. And an oil storage tank 23 is respectively arranged on the through hole and the shaft hole on the inner top wall of the front end cover. The front end cover 1 is provided with a through positioning hole 14, the rear shell 2 is correspondingly provided with a positioning groove 15, the positioning hole 14 is connected with the positioning groove 15 through a positioning pin 16, and the front end cover 1 and the rear shell 2 are conveniently and accurately positioned and guaranteed. The opening outside the positioning hole 14 is provided with a plug 17. And a sealing combined gasket 18 is arranged between the fixing bolt 3 and the front end cover 1. The inner circumferential wall of the through hole 8, namely the output gear shaft 4, is sleeved with a high-pressure oil seal 22, and the outer circumferential wall of the high-pressure oil seal 22 is provided with a sealing ring 2201. The front end cover 1 is embedded with a mounting bolt 19 which extends outwards. Offer on the outer periphery wall of back casing 2 and step down ring channel 20, set up the oil duct with 2 inner chambers of back casing intercommunication in the ring channel 20 of stepping down, and the outer opening of oil duct is provided with oil blanket 21, the shutoff oil duct of being convenient for, the ring channel of stepping down is a indent cell body of motor surface to guarantee oil blanket's outer end is level and smooth with back casing surface.

The working principle of the specific embodiment is as follows: high-pressure oil enters one side of the two gear shafts in the rear shell through the oil inlet joint, the high-pressure driving gear rotates, the oil flows to the other side through the gear meshing part and is discharged through the oil return joint, and the gear rotates to output power through the output gear shaft.

The beneficial effects of the embodiment are as follows: 1. the invention provides a high-speed hydraulic motor which is suitable for field operation, has small volume and is matched with a hydraulic source of engineering machinery. 2. Oil throttle holes are formed in the grooves of the output gear shaft and the driving gear shaft, so that the backlog generated by meshing between high-speed rotating teeth is effectively controlled; on the terminal surface in the front end housing, be provided with the off-load groove between output gear axle and the driving gear axle promptly, high-pressure oil permeates the off-load groove through gear shaft and casing clearance, then joins the flow direction oil return joint through inside oil duct, discharges the motor, and the draining of off-load groove has at first prevented the overstock in the casing, guarantees to be full of fluid all the time moreover between gear shaft and the casing, effectively reduces the friction and takes away the heat, has guaranteed the high-speed rotation of gear.

The specific embodiments of the present invention should not be construed as limiting the invention, and all similar constructions and modifications utilizing the same are intended to be included within the scope of the present invention.