CN214092513U - Hydraulic motor with oil flushing device - Google Patents

Abstract

A hydraulic motor with oil flushing device is improved on the basis of existent shell body, crankshaft, oil-flushing disk and regulating component and flushing hole mounted in the oil-flushing channel, i.e. the oil-flushing channel is deviated from oil-discharging channel, and on the channel disk an auxiliary channel for communicating the described oil-returning cavity and oil-flushing channel is cut, and the external end opening of said auxiliary channel is positioned on the bottom surface of oil-flushing disk, and is blocked by means of plug. After adopting above-mentioned structure, when processing this towards oil passageway, be solid processing on logical food tray, can ensure the concentricity of whole section towards oil passageway to ensure that the towards oil device after the assembly can accurate regulation flushing flow, also avoid the emergence of oil leak phenomenon. Therefore, the utility model not only facilitates the processing, but also ensures the quality of the product.

Description

Hydraulic motor with oil flushing device

Technical Field

The utility model relates to a hydraulic motor specifically indicates a hydraulic motor with towards oily device.

Background

In order to timely flush impurities in a hydraulic motor shell and cool a friction part in the motor shell so as to ensure that the friction part can normally work for a long time, an oil flushing device is usually configured on the existing hydraulic motor. At present, the structure of the flushing device is diversified, but the common structure is to introduce the hydraulic oil from the low pressure side of the hydraulic motor into the housing to achieve the above flushing purpose. Such as that disclosed in the patent document CN209212685U, which is a chinese patent granted number, it includes a casing, a crankshaft, and an oil passing pan installed on the casing, the oil passing pan has an oil inlet channel and an oil outlet channel, the oil passing pan also has an oil flushing channel communicated with the oil outlet channel and an adjustable throttle valve installed therein for controlling the opening and closing degree of the oil flushing channel, the casing has an oil drain opening communicated with the inner cavity of the casing, the casing has oil flushing holes communicating the oil flushing channel with the inner cavity of the casing, the oil flushing channel is distributed along the axial direction of the crankshaft, the outer end opening of the oil flushing channel is located on the outer end surface of the oil passing pan, the inner end opening is located on the inner end surface of the oil passing pan, the adjustable throttle valve is inserted into the oil flushing channel from the outer end opening of the oil flushing channel, the oil passing pan also has an inclined channel inclined towards the center side of the oil passing pan, one end opening of the inclined channel is communicated with the oil flushing channel, the other port is positioned on the inner end surface of the oil passing disc, and the other port of the inclined channel can be butted with the oil flushing hole.

Adopt above-mentioned towards oil structure, though can realize the purpose of washing the interior impurity of hydraulic motor shell, nevertheless discover when actual production: because the oil flushing channel in the oil communicating disc is communicated with the oil outlet channel, and the oil outlet channel is formed when the oil communicating disc is cast, when the oil flushing channel on the inner side of the oil outlet channel is processed, the positioning point is not easy to find, the concentricity of the two sections of oil flushing channels (separated by the oil outlet channel) cannot be ensured, the oil leakage of the opening part of the oil flushing channel after the oil flushing channel is assembled with the adjustable throttle valve is further facilitated, and the flushing flow cannot be accurately adjusted. Secondly, adjustable throttle protrusion is in the surface of logical oil dish, causes the damage of colliding with easily. Moreover, in order to match with the oil flushing channel, the adjustable throttle valve is a non-standard part, so that the processing is inconvenient and the cost is high. Therefore, there is a need for further improvement of the existing hydraulic motor with oil flushing structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hydraulic motor who has towards oil installation convenient to processing and can avoid the oil leak is provided to above-mentioned prior art current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a hydraulic motor with towards oil device, including casing, bent axle and the logical food tray of installing on the casing, lead to the oil and have the oil feed passageway in the dish and lead to the oil outlet passageway that the oil return chamber in the food tray is linked together, still open the towards oil passageway that has the axial distribution along the bent axle in the logical food tray and install the regulating part that can control towards the control mouth opening and closing degree of oil passageway, towards the outer port of oil passageway and be located the outer terminal surface that leads to the food tray, towards the inner port of oil passageway and be located the interior terminal surface that leads to the food tray, it has the communicating draining port of the inner chamber with the casing to open on the casing, still open the towards oilhole that has intercommunication towards oil passageway and casing inner chamber on the casing, its characterized in that: the oil outlet channel is deviated from the oil outlet channel, the oil passing disc is provided with an auxiliary channel communicated with the oil return cavity and the oil passing channel, and an outer port of the auxiliary channel is positioned on the bottom surface of the oil passing disc and is blocked by a plug.

In the above solution, it is further improved that the adjusting member is a set screw with a tapered end, which is screwed into the oil flushing channel, and the tapered end of the set screw can abut against the control port of the oil flushing channel. The set screw can be made of standard parts, so that the cost can be reduced.

In the above further improvement, it is further improved that a plug is connected to the outer port of the oil flushing channel by a screw thread, the tail of the plug is exposed out of the outer port of the oil flushing channel and has a flange on the peripheral surface, and the plug is further sleeved with a sealing gasket clamped between the flange and the oil through disc, so as to effectively prevent oil leakage.

In each of the above schemes, preferably, the outer end surface of the oil passing disc is designed into a concave structure in the area where the outer port of the oil flushing channel is located, so as to avoid the outer port of the oil flushing channel from being collided with by foreign objects.

In each of the above solutions, it is still further improved that a check valve is installed in the auxiliary passage to allow only oil to flow from the oil return chamber to the oil flushing passage, so as to prevent the oil from being sucked back.

In each scheme, the oil flushing hole is level with the oil flushing channel, a sunk groove is designed at the port of the oil flushing hole, and a sealing ring matched with the inner end face of the oil passing disc is installed in the sunk groove, so that the universal distribution of the shell is strong.

Compared with the prior art, the utility model has the advantages of: because the oil flushing channel deviates from the oil outlet channel, when the oil flushing channel is machined, the oil passing disc is machined in a solid mode, the concentricity of the whole oil flushing channel can be guaranteed, the oil flushing device after assembly can accurately adjust flushing flow, and oil leakage is avoided. Therefore, the utility model not only facilitates the processing, but also ensures the quality of the product.

Drawings

Fig. 1 is a structural sectional view (a-a direction sectional view in fig. 2) of an embodiment of the present invention;

FIG. 2 is a left side half-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of section I of FIG. 1;

FIG. 4 is a schematic left side elevational view of the oil pan of FIG. 1;

fig. 5 is a sectional view taken along line B-B in fig. 4.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, it is a specific embodiment of the present invention.

The hydraulic motor with the oil flushing device comprises a shell 1, a crankshaft 2 and an oil passing disc 3 installed on the shell 1, wherein the oil passing disc 3 is fixed on the shell 1 through bolts, an oil inlet channel 31 and an oil outlet channel 32 communicated with an oil return cavity 34 in the oil passing disc 3 are arranged in the oil passing disc 3, the hydraulic motor further comprises an oil distribution disc 4, a plunger sleeve 5 connected with the shell in a sealing mode, a sealing cover 6 and a plurality of plunger-connecting rod assemblies 7, the oil distribution disc 4 is located between the oil passing disc 3 and the shell 1, one end of the oil distribution disc is opposite to the oil passing disc 3, the other end of the oil distribution disc is connected with one end of the crankshaft 2 through a double-headed key, and the oil distribution disc 4 and the crankshaft 2 rotate synchronously. These are prior art and will not be described further herein.

The improvement point of the embodiment lies in the oil flushing structure on the oil through disc 3, namely, an oil flushing channel 33 deviating from the oil outlet channel 32 is arranged in the oil through disc 3, the oil flushing channel 33 is distributed along the axial direction of the crankshaft 2, the outer port of the oil flushing channel 33 is positioned on the outer end surface of the oil through disc 3, and the inner port is positioned on the inner end surface of the oil through disc 3, so that the design is that when the oil flushing channel 33 is processed, the oil flushing channel 33 cannot be separated by the oil outlet channel 32, complete processing can be carried out at one time, and the concentricity of the whole section of the oil flushing channel 33 can be ensured. At this time, in order to communicate with the oil outlet channel 32, an auxiliary channel 35 communicating the oil return cavity 34 and the oil flushing channel 33 is opened on the oil passing plate 3, an outer port of the auxiliary channel 35 is positioned on the bottom surface of the oil passing plate 3, the auxiliary channel 35 is drilled after the oil flushing channel 33 is machined, and the auxiliary channel 35 can be sealed by installing a plug 8 on the outer port of the auxiliary channel 35.

In order to conveniently control the flushing flow, an adjusting piece capable of controlling the opening and closing degree of the control port of the flushing oil channel 33 is installed in the flushing oil channel 33, specifically, the adjusting piece is a set screw 9 which is connected in the flushing oil channel 33 in a threaded manner and is provided with a conical end, the conical end of the set screw 9 can abut against the control port of the flushing oil channel 33, at the moment, the set screw 9 is a standard piece and can be directly purchased and obtained without additional processing, and therefore the cost is lower. When adjustment is required, a special tool (such as a screwdriver) is inserted into the slot at the tail of the set screw 9 to rotate. In order to prevent the oil leakage phenomenon at the outer port of the oil flushing channel 33, a plug 10 is further screwed in the outer port of the oil flushing channel 33, the tail part of the plug 10 is exposed out of the outer port of the oil flushing channel 33 and is provided with a flange on the peripheral surface, a sealing gasket 20 clamped between the flange and the oil through disc 3 is further sleeved on the plug 10, and the oil leakage of the outer port of the oil flushing channel 33 can be effectively prevented by the combination of the plug 10 and the sealing gasket 20. Meanwhile, in order to ensure the unidirectional flow of the oil in the oil return chamber 34, a one-way valve 30 which only allows the oil to flow from the oil return chamber 34 to the oil flushing passage 33 is installed in the auxiliary passage 35, so that the phenomenon of sucking back the oil by the hydraulic motor is prevented.

In this embodiment, the outer end surface of the oil pan 3 is designed into a recessed structure 36 in the area of the outer port of the oil flushing channel 33, so as to prevent the plug 10 therein from being knocked by foreign objects, and ensure that the plug 10 can reliably press the gasket 20 at the outer port of the oil flushing channel 33, thereby avoiding oil leakage.

For the oil flushing channel 33, the casing 1 is provided with an oil drain port 12 communicated with the inner cavity 11 of the casing, the casing 1 is further provided with an oil flushing hole 13 communicated with the inner cavity 11 of the casing and the oil flushing channel 33, and the inner end port of the oil flushing channel 33 can be butted with the oil flushing hole 13, namely the oil flushing hole 13 is butted with the inner end port of the oil flushing channel 33 in a flush manner to realize communication. In order to ensure the sealing performance of the joint of the oil flushing hole 13 and the oil flushing channel 33, a sunk groove is designed at the port of the oil flushing hole 13, and a sealing ring 40 matched with the inner end surface of the oil through disc 3 is installed in the sunk groove to increase the matching performance with the shell.

The utility model discloses a theory of operation and process are as follows:

when needing towards oil, unscrew end cap 10, dismantle end cap 10 promptly, rotatory holding screw 9, the size of the control mouth of towards oil passageway 33 can be adjusted, in this embodiment, screw up holding screw, two rings of backward rotation again, towards oil passageway 33's control mouth for the maximize, adjust suitable back, screw end cap 10 again, at this moment, some hydraulic oil in the oil return chamber 34 gets into the inner chamber 11 of casing 1 behind towards oil passageway 33 and towards oilhole 13, for the impurity in the washing fluid pressure motor casing, keep clean in the casing, and lower the temperature for the friction part in the casing, guarantee friction part's normal work, the hydraulic oil after the washing is discharged from draining port 12.

Claims (6)

1. A hydraulic motor with an oil flushing device comprises a shell (1), a crankshaft (2) and an oil communicating disc (3) installed on the shell (1), wherein an oil inlet channel (31) and an oil outlet channel (32) communicated with an oil return cavity (34) in the oil communicating disc (3) are arranged in the oil communicating disc (3), the oil flushing channel (33) distributed along the axial direction of the crankshaft (2) and an adjusting piece capable of controlling the opening and closing degree of a control opening of the oil flushing channel (33) are further arranged in the oil communicating disc (3), an outer end opening of the oil flushing channel (33) is located on the outer end face of the oil communicating disc (3), an inner end opening of the oil flushing channel (33) is located on the inner end face of the oil communicating disc (3), an oil draining opening (12) communicated with an inner cavity (11) of the shell is formed in the shell (1), and an oil flushing hole (13) communicated with the oil flushing channel (33) and the inner cavity (11) of the shell is further formed in the shell (1), the method is characterized in that: the oil flushing channel (33) deviates from the oil outlet channel (32), an auxiliary channel (35) which is communicated with the oil return cavity (34) and the oil flushing channel (33) is arranged on the oil passing disc (3), and an outer port of the auxiliary channel (35) is positioned on the bottom surface of the oil passing disc (3) and is blocked by a plug (8).

2. The hydraulic motor with the oil flushing device according to claim 1, characterized in that: the adjusting piece is a set screw (9) which is connected with the oil flushing channel (33) in a threaded mode and is provided with a conical end, and the conical end of the set screw (9) can abut against the control opening of the oil flushing channel (33).

3. The hydraulic motor with the oil flushing device according to claim 2, characterized in that: a plug (10) is connected in the outer port of the oil filling channel (33) in a threaded manner, the tail part of the plug (10) is exposed out of the outer port of the oil filling channel (33) and is provided with a flange on the peripheral surface, and a sealing gasket (20) clamped between the flange and the oil passing disc (3) is also sleeved on the plug (10).

4. The hydraulic motor with an oil flushing device according to claim 1, 2 or 3, characterized in that: the outer end face of the oil passing disc (3) is designed into a concave structure (36) in the area of the outer end opening of the oil flushing channel (33).

5. The hydraulic motor with an oil flushing device according to claim 1, 2 or 3, characterized in that: a check valve (30) which only allows oil to flow from the oil return chamber (34) to the oil flushing passage (33) is installed in the auxiliary passage (35).

6. The hydraulic motor with an oil flushing device according to claim 1, 2 or 3, characterized in that: the oil flushing hole (13) and the oil flushing channel (33) are level, a sunk groove is designed at the port of the oil flushing hole (13), and a sealing ring (40) matched with the inner end face of the oil passing disc (3) is installed in the sunk groove.

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