CN214616864U - Oil passing disc of hydraulic motor - Google Patents
Oil passing disc of hydraulic motor Download PDFInfo
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- CN214616864U CN214616864U CN202120365542.4U CN202120365542U CN214616864U CN 214616864 U CN214616864 U CN 214616864U CN 202120365542 U CN202120365542 U CN 202120365542U CN 214616864 U CN214616864 U CN 214616864U
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Abstract
The utility model provides a hydraulic motor's logical oil pan, includes the main part that leads to the food tray, is equipped with first, second oil duct and the inner chamber that is used for installing the food tray in this main part, and a port of this first, second oil duct all link up with the inner chamber mutually, and another port of first, second oil duct all exposes in the surface of main part and forms first hydraulic fluid port and second hydraulic fluid port, and its characterized in that first, second hydraulic fluid port all is located the terminal surface of main part, and first oil duct is close to the center distribution of main part. After adopting above-mentioned structure, outside oil pipe can be arranged along hydraulic motor's bent axle direction and can be connected with first, second hydraulic fluid port smoothly, need not to turn again to the side of logical food tray promptly on, therefore greatly made things convenient for first, second hydraulic fluid port and outside oil pipe's connection. Simultaneously with first, the second hydraulic fluid port design into the screw thread mouth to set corresponding installation screw on the terminal surface of main part, both can screw thread direct mount when making with outside oil pipe connection, the accessible flange is installed again, thereby can further improve the convenience of installation.
Description
Technical Field
The utility model relates to a hydraulic motor especially indicates a hydraulic motor's logical food tray.
Background
The existing hydraulic motors have oil distribution modes of shaft oil distribution and end surface oil distribution, wherein the end surface oil distribution mode has been applied to various types of hydraulic motors for decades and tends to replace the shaft oil distribution mode. The end-face oil distribution mainly comprises an oil passing disc and an oil distribution disc, wherein a first oil channel and a second oil channel and an inner cavity for installing the oil distribution disc are arranged in a main body of the oil passing disc, one ports of the first oil channel and the second oil channel are communicated with the inner cavity, the other ports of the first oil channel and the second oil channel are exposed out of the side face of the main body of the oil passing disc to form a first oil port and a second oil port, namely the first oil port and the second oil port are radially distributed, as disclosed in the document with the Chinese patent No. CN2195655Y, a pressure oil conveying hole (namely a brake oil port) is formed in the end face (namely the front face) of the main body of the oil passing disc, a step-shaped through hole (namely a brake oil channel) which is communicated with the brake oil port and the first oil channel and the second oil channel is formed in the main body of the oil passing disc, a screw plug and a steel ball are arranged in the brake oil channel, when the hydraulic motor is started, hydraulic oil can enter the brake from the first oil duct or the second oil duct, and the hydraulic-hydraulic walking brake starting system is realized.
Although the oil-through disc can be matched with the oil-distributing disc to realize end-face oil distribution, the following defects are found in the use process: (1) because first hydraulic fluid port and second hydraulic fluid port all are located the side of logical food tray, this kind of distribution makes hydraulic motor when connecting outside pipeline, forms certain interference in the space, and under certain circumstances promptly, the hydraulic motor is not convenient for with outside high pressure fuel pipe and return oil pipe's being connected. (2) The steel ball directly rolls in the brake oil duct in the main body of the oil passing disc, the oil passing disc is directly abraded, and the abraded brake oil duct influences the control of the steel ball after the steel ball is used for a period of time due to the fact that the steel ball moves frequently, and therefore the whole oil passing disc needs to be replaced, and use cost is improved. (3) Because the brake oil duct is arranged between the oil inlet channel and the oil outlet channel, the installation of the screw plug and the steel ball is inconvenient, and the subsequent daily maintenance is inconvenient.
Further improvements are needed to address the existing oil pan structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art's current situation, provide a convenient hydraulic motor's that is connected and long service life with outside oil pipe oil pan that leads to.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a hydraulic motor's logical food tray, is equipped with first oil duct and second oil duct and is used for installing the inner chamber of joining in marriage the food tray including the main part that leads to the food tray in this main part that leads to the food tray, a port of this first, second oil duct all link up with the inner chamber mutually, another port of first, second oil duct all exposes in the surface of the main part that leads to the food tray and forms first hydraulic fluid port and second hydraulic fluid port, its characterized in that: the first oil port and the second oil port are both located on the end face of the main body of the oil passing disc, and the first oil duct is distributed near the center of the main body of the oil passing disc.
In order to further improve the convenience of being connected with an external oil pipe, the first oil port and the second oil port are threaded ports, and a plurality of first mounting screw holes distributed around the first oil port and a plurality of second mounting screw holes distributed around the second oil port are formed in the end face of the main body of the oil passing disc.
In order to supply oil to the brake, it is preferable that a brake oil port is further disposed on an end surface of the main body of the oil pan, a brake oil duct penetrating through the brake oil port is disposed in the main body of the oil pan, one end port of the brake oil duct is located on a side surface of the main body of the oil pan, the other end port of the brake oil duct is penetrated through the first oil duct, a middle portion of the brake oil duct is penetrated through the inner cavity through an inclined passage located in the main body of the oil pan, and a check valve which allows only high-pressure oil in the first oil duct or the second oil duct to flow to the brake oil port is disposed in the brake oil duct. One port of the brake oil duct is exposed on the side surface of the main body, so that the brake oil duct is convenient to process, install the one-way valve core and maintain in the future.
In a further improvement, the one-way valve comprises a one-way valve core positioned in the brake oil duct, a steel ball positioned in a control channel in the one-way valve core and a limiting piece for positioning the one-way valve core in the brake oil duct, the limiting piece is provided with a through hole extending along the axial direction of the brake oil duct, the control channel is communicated with the one-way valve core along the brake oil duct, the control channel is provided with a first control port close to the first oil duct and a second control port far away from the first oil duct, the one-way valve core is also provided with an oil outlet channel with one end communicated with the brake oil port, the other end of the oil outlet channel is communicated with a control channel between the first control port and the second control port, when the steel ball is pressed against the first control port, the brake oil port is communicated with the second oil duct, when the steel ball is pressed against the second control port, the brake oil port is communicated with the first oil duct. The one-way valve core that adds, when the wearing and tearing appear in the steel ball cooperation, only can change this one-way valve core to can protect logical food tray, make its damage that can not be too fast.
In order to be convenient to install, the brake oil duct is composed of a small-diameter section connected with the first oil duct, a middle-diameter section accommodating the one-way valve core and a thread section in threaded connection with the limiting part, the middle-diameter section is arranged corresponding to the brake oil port, and the inner diameter of the middle-diameter section is smaller than or equal to that of the thread section.
Preferably, the joints of the one-way valve core, the small-diameter section and the thread section are respectively provided with a sealing gasket so as to improve the sealing performance of the assembled one-way valve core.
Preferably, the number of the limiting parts is two, and the two limiting parts are all screws with the through holes, so that the limiting reliability can be improved.
In order to further improve the service life of the oil distribution disc, a copper wear-resistant layer is brazed on the surface of the inner cavity, which is used for contacting the oil distribution disc.
Compared with the prior art, because the utility model discloses in with first, the second hydraulic fluid port setting on the terminal surface of logical oil pan main part, can arrange and can be connected with first, the second hydraulic fluid port smoothly because of the bent axle direction that can outside oil pipe can follow hydraulic motor, need not promptly to turn again to the side of logical oil pan on, and then greatly made things convenient for first, the second hydraulic fluid port and outside oil pipe to be connected. Simultaneously with first, the second hydraulic fluid port design into the screw thread mouth to set corresponding installation screw on the terminal surface of the main part of logical oil dish, when making with outside oil pipe connection, both can install by the screw thread directness, can install through the flange again, with the convenience of further improvement installation.
Drawings
FIG. 1 is a schematic front view of an oil pan according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A in FIG. 1;
fig. 3 is an enlarged schematic view of a portion I in fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 3, the oil pan of the present invention is preferred, and the oil pan of the hydraulic motor includes a main body 1 of the oil pan, in this embodiment, the main body 1 of the oil pan is made of steel, and compared with a casting, the internal structure is more compact, and the oil mixing phenomenon between high pressure and low pressure does not occur, and simultaneously, the following oil ducts are conveniently processed in the oil pan. Specifically, a first oil channel 11 and a second oil channel 12 and an inner cavity 13 for installing an oil distribution disc (not shown in the figure) are arranged in the main body 1 of the oil distribution disc, one end ports of the first oil channel 11 and the second oil channel 12 are communicated with the inner cavity 13, and after the oil distribution disc is assembled in the inner cavity 13, the first oil channel 11 and the second oil channel 12 are not communicated with each other according to the prior art. The other ports of the first oil duct 11 and the second oil duct 12 are exposed on the end surface of the main body 1 of the oil pan to form a first oil port 111 and a second oil port 121, the first oil duct 11 is distributed near the center of the main body 1 of the oil pan, and meanwhile, for convenience in installation, the first oil port 111 and the second oil port 121 are both threaded ports, and the end surface of the main body 1 of the oil pan is provided with a plurality of first installation screw holes 14 distributed around the first oil port 111 and a plurality of second installation screw holes 15 distributed around the second oil port 121, and the number of the installation screw holes is specifically set as required, and is four as shown in fig. 1.
In order to conveniently provide hydraulic oil for the brake in the system, a brake oil port 16 is further arranged on the end surface of the main body 1 of the oil pan, a brake oil channel 17 penetrating through the brake oil port 16 is formed in the main body 1 of the oil pan, one end of the brake oil channel 17 is located on the side surface of the main body 1 of the oil pan, the other end of the brake oil channel 17 is communicated with the first oil channel 11, the middle of the brake oil channel 17 is communicated with the inner cavity 13 through an inclined channel 18 located in the main body 1 of the oil pan, and a check valve which only allows high-pressure oil in the first oil channel 11 or the second oil channel 12 to flow to the brake oil port 16 is arranged in the brake oil channel 17. One port of the brake oil gallery 17 is exposed on the side surface of the main body 1 of the oil-passing pan, which facilitates assembly and later maintenance of the check valve, and also facilitates machining of the brake oil gallery 17.
In order to prevent the below-mentioned steel ball in the check valve from wearing the main body 1 of the oil pan too fast, in the present embodiment, the check valve is further improved, the check valve includes a check valve core 2 located in the brake oil gallery 17, a steel ball 3 located in the control passage 21 in the check valve core 2, and a stopper 4 for positioning the check valve core 2 in the brake oil gallery 17, that is, the check valve core 2 is added, and in view of the convenience of assembly, the brake oil gallery 17 is composed of a small diameter section 171 connected to the first oil gallery 11, a middle diameter section 172 accommodating the check valve core 2, and a threaded section 173 threadedly connected to the stopper, the middle diameter section 172 is arranged corresponding to the brake oil port 16, and the inner diameter of the middle diameter section 172 is smaller than or equal to the inner diameter of the threaded section 173. The limiting members 4 are two screws, so that the limiting is more reliable, each screw is provided with a through hole 41 extending along the axial direction of the brake oil duct, the control channel 21 penetrates through the one-way valve element 2 along the brake oil duct 17, the control channel 21 is provided with a first control port 22 adjacent to the first oil duct 11 and a second control port 23 far away from the first oil duct 11, the one-way valve element 2 is further provided with an oil outlet channel 24 with one end communicated with the brake oil port 16, the other end of the oil outlet channel 24 is communicated with the control channel 21 between the first control port 22 and the second control port 23, when the steel ball 3 is pressed against the first control port 22, the brake oil port 16 is communicated with the second oil duct 12, and when the steel ball 3 is pressed against the second control port 23, the brake oil port 16 is communicated with the first oil duct 11.
In order to prevent the cross flow phenomenon at the position of the check valve core, sealing gaskets 5 are respectively arranged at the joints of the check valve core 2, the small diameter section 171 and the threaded section 173.
After the oil through disc and the oil distribution disc are assembled, in order to improve the self wear resistance, a copper wear-resistant layer 6 is brazed on the surface, which is in contact with the oil distribution disc, in the inner cavity 13 of the oil through disc, so that the service life of the oil through disc is prolonged.
After the assembly is completed, a first plug 7 may be screwed to one end of the brake oil duct 17. When the brake oil port is not needed, a second plug 8 is connected to the brake oil port in a threaded manner.
When the hydraulic motor is used, the first oil port 111 and the second oil port 121 are connected with an external oil pipe, and when the first oil port 111 is connected with high-pressure oil, the high-pressure oil distributes the oil for the hydraulic motor through the oil distribution disc and pushes the steel ball 3 to move upwards so that the steel ball is abutted to the second control port 23. When the second oil port 121 is connected with high-pressure oil, the high-pressure oil is input to the hydraulic motor after being distributed through the oil distribution disc, and simultaneously, the pressure oil enters the brake oil duct 17 through the oil distribution disc and the inclined channel 18, and pushes the steel ball 3 to move downwards, so that the steel ball is abutted to the first control port 22. Obviously, with such a check valve, high pressure oil can be always available at the brake port 16, thereby achieving the purpose of providing high pressure oil for the brake in the system.
Claims (8)
1. The oil passing disc of the hydraulic motor comprises a main body (1) of the oil passing disc, wherein a first oil channel (11), a second oil channel (12) and an inner cavity (13) used for installing an oil distribution disc are arranged in the main body (1) of the oil passing disc, one ports of the first oil channel and the second oil channel are communicated with the inner cavity, the other ports of the first oil channel and the second oil channel are exposed out of the surface of the main body (1) of the oil passing disc to form a first oil port (111) and a second oil port (121), and the oil passing disc is characterized in that: the first oil port (111) and the second oil port (121) are both located on the end face of the main body (1) of the oil through disc, and the first oil passage (11) is distributed adjacent to the center of the main body (1) of the oil through disc.
2. The oil pan of a hydraulic motor according to claim 1, wherein: the oil pan is characterized in that the first oil port (111) and the second oil port (121) are threaded, and a plurality of first mounting screw holes (14) distributed around the first oil port and a plurality of second mounting screw holes (15) distributed around the second oil port are formed in the end face of the main body (1) of the oil pan.
3. The oil pan of a hydraulic motor according to claim 1 or 2, characterized in that: the oil passing disc is characterized in that a brake oil port (16) is further arranged on the end face of the main body (1) of the oil passing disc, a brake oil channel (17) penetrating through the brake oil port is formed in the main body (1) of the oil passing disc, one end port of the brake oil channel (17) is located on the side face of the main body (1) of the oil passing disc, the other end port of the brake oil channel (17) is communicated with the first oil channel (11), the middle part of the brake oil channel (17) is communicated with the inner cavity (13) through an inclined channel (18) located in the main body (1) of the oil passing disc, and a one-way valve only allowing high-pressure oil in the first oil channel (11) or the second oil channel (12) to flow to the brake oil port (16) is arranged in the brake oil channel (17).
4. An oil pan for a hydraulic motor according to claim 3, wherein: the check valve comprises a check valve core (2) positioned in a brake oil duct (17), a steel ball (3) positioned in a control channel (21) in the check valve core and a limiting piece (4) for positioning the check valve core in the brake oil duct, wherein a through hole (41) extending along the axial direction of the brake oil duct (17) is formed in the limiting piece (4), the control channel (21) penetrates through the check valve core (2) along the brake oil duct (17), a first control port (22) close to a first oil duct (11) and a second control port (23) far away from the first oil duct are formed in the control channel (21), an oil outlet channel (24) with one end communicated with the brake oil port (16) is further formed in the check valve core (2), the other end of the oil outlet channel (24) is communicated with the control channel (21) between the first control port and the second control port, and when the steel ball (3) is pressed against the first control port (22), the brake oil port (16) is communicated with the second oil duct (12), and when the steel ball (3) is pressed against the second control port (23), the brake oil port (16) is communicated with the first oil duct.
5. The oil pan of a hydraulic motor according to claim 4, wherein: the brake oil duct (17) is composed of a small-diameter section (171) connected with the first oil duct, a middle-diameter section (172) containing the one-way valve core and a thread section (173) in threaded connection with the limiting piece, the middle-diameter section (172) is arranged corresponding to the brake oil port (16), and the inner diameter of the middle-diameter section (172) is smaller than or equal to that of the thread section (173).
6. The oil pan of a hydraulic motor according to claim 5, wherein: and the joints of the one-way valve core (2) and the small diameter section (171) and the threaded section (173) are respectively provided with a sealing gasket (5).
7. The oil pan of a hydraulic motor according to claim 5, wherein: the number of the limiting pieces (4) is two, and the limiting pieces are all screws with the through holes (41).
8. The oil pan of a hydraulic motor according to claim 1 or 2, characterized in that: the surface of the inner cavity (13) which is used for contacting with the oil distribution disc is brazed with a copper wear-resistant layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120365542.4U CN214616864U (en) | 2021-02-09 | 2021-02-09 | Oil passing disc of hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120365542.4U CN214616864U (en) | 2021-02-09 | 2021-02-09 | Oil passing disc of hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214616864U true CN214616864U (en) | 2021-11-05 |
Family
ID=78442076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120365542.4U Active CN214616864U (en) | 2021-02-09 | 2021-02-09 | Oil passing disc of hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214616864U (en) |
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2021
- 2021-02-09 CN CN202120365542.4U patent/CN214616864U/en active Active
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