CN213393296U - Steering pump with built-in adjustable damping liquid resistance device - Google Patents
Steering pump with built-in adjustable damping liquid resistance device Download PDFInfo
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- CN213393296U CN213393296U CN202021841421.4U CN202021841421U CN213393296U CN 213393296 U CN213393296 U CN 213393296U CN 202021841421 U CN202021841421 U CN 202021841421U CN 213393296 U CN213393296 U CN 213393296U
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- steering pump
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Abstract
The utility model relates to a built-in adjustable damping liquid hinders steering pump of device belongs to hydraulic means pump technical field, and the purpose is that the damping hole is difficult for processing in solving the steering pump, the poor problem of processing uniformity, and it is adjustable to realize the damping, and technical scheme does, sets up adjustable damped liquid in the steering pump and hinders the device, and the liquid hinders the device and can dismantle with the oil pump shell and be connected, and the inside damping hole of seting up of liquid hinders the device, and the liquid that has the damping hole of different draw ratios through the change hinders the device and realizes that the damping of steering pump is adjustable, compares with prior art, the utility model discloses the device simple structure, processing is easy, workpiece surface is of high quality, production efficiency is high, be fit for mass production, has shortened the debugging cycle of sliding valve dynamic stability through the liquid that the quick replacement has different draw ratios damping.
Description
Technical Field
The utility model belongs to the technical field of hydraulic means, specifically be a built-in adjustable damping liquid hinders steering pump of device.
Background
The damping structure in the existing steering pump is that a damping hole is processed on a shell, and mostly is a cross hole at a deep hole, on one hand, the damping structure is not easy to measure, some shells need to be processed with a space hole, angle deviation easily occurs during processing, when oil pumps are produced in batches, the consistency of the shells is poor, unstable performance is caused by processing unstable factors, the quality of products is poor, and the reputation of enterprises is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a built-in adjustable damped liquid resistance device's steering pump, and the purpose is solved the difficult problem of processing, the processing uniformity difference of damping hole to it is adjustable to realize the damping.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
The utility model provides a built-in adjustable damping liquid hinders steering pump of device, includes the slide valve, is located the oil pump shell cavity of slide valve both sides and all is provided with fluid, is provided with the spring in one of them side oil pocket, the one end and the slide valve of spring are connected, and the other end is connected with the oil pump shell, be provided with adjustable damped liquid in the steering pump and hinder the device, the liquid hinders the device and can dismantle with the oil pump shell and be connected, the inside damping hole of seting up of liquid hinders the device, the one end of damping hole is linked together through the oil pump shell oil pocket at hydraulic fluid port and spring place in the steering pump, and the other end is linked together with the oil-out, and it is adjustable to.
Furthermore, the liquid resistance device is provided with an external thread, the liquid resistance device is installed in the oil pump shell through the external thread in a screwing mode, and a hole is formed in the liquid resistance device and used for tools during installation of the liquid resistance device.
Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses an adjustable damping liquid hinders device, simple structure, processing is easy, and workpiece surface is of high quality, and production efficiency is high, is fit for mass production, has shortened the debugging cycle of sliding valve dynamic stability, and the stability of test performance promotes greatly, has improved oil pump life, has improved noise phenomenon, reduces purchasing cost, promotes the performance of enterprises.
Drawings
FIG. 1 shows a damping-adjustable hydraulic resistance device of the present invention;
FIG. 2 is a schematic structural view in cross section of a prior art steering pump;
fig. 3 is a schematic structural view of a cross-sectional view of a steering pump having a fluid resistance device according to the present invention.
The hydraulic damping device comprises a hydraulic damping device 1, a damping hole 2, a mounting hole 3, an oil pump shell 4, a fixed damping device 5, a slide valve 6, a spring 7, an oil passing port 8 and an oil outlet 9.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the liquid resistance device with adjustable damping is a liquid resistance device with adjustable damping, wherein an external thread is arranged on the liquid resistance device 1 and is used for being fixedly connected with an oil pump shell, a damping hole 2 is formed at one end inside the liquid resistance device, a mounting hole 3 is formed at the other end of the liquid resistance device and is used for screwing the liquid resistance device 1 into the oil pump shell 4, and the liquid resistance device 1 with different length-diameter ratios can be manufactured according to damping requirements.
As shown in fig. 2, it is a prior art steering pump comprising a fixed damping device 5, formed by machining holes in the casing of the oil pump, whose damping is fixed, not adjustable and inconvenient to use.
As shown in fig. 3, be the utility model discloses built-in adjustable damping liquid hinders steering pump of device, including slide valve 6, spring 7, adjustable damping's liquid hinders device 1, be located the oil pump shell cavity of the 6 left and right sides of slide valve and all be provided with fluid, wherein be provided with spring 7 in the right side oil pocket, spring 7's one end is connected with slide valve 6, and the other end is connected with the oil pump shell, can place the liquid that has different draw ratio damping hole in the steering pump and hinder device 1, liquid hinders device 1 and passes through the external screw thread is twisted soon and is installed in the oil pump shell, liquid hinders device one end and is linked together through crossing hydraulic fluid port 8 and slide valve right side oil pocket in the steering pump, and the other end is linked together with oil-out 9 for produce the hydraulic pressure force of competing with slide valve left.
The utility model discloses adjustable damping is realized through following principle to built-in liquid resistance device: as shown in figure 1, the ratio (length-diameter ratio) of the diameter and the length of the damping hole is critical to the decompression effect of an oil cavity on one side of the slide valve, the pressure difference of the oil cavities on the two sides of the slide valve 6 plays a critical role in the dynamic response of the slide valve 6, the liquid resistance devices with different length-diameter ratios are manufactured, and when the hydraulic resistance device is used, a tool is placed into the mounting hole 3 to screw the liquid resistance device 1 into the oil pump shell through external threads, so that the quick replacement and the flow coefficient adjustment are realized, and the quick adjustment.
The flow and the pressure of the oil cavity on the left side of the slide valve 6 are controlled by the displacement and the rotating speed of the working part of the steering pump, when the pressure of the oil cavity on the left side of the slide valve 6 is increased, the unbalance of the stress state of the slide valve 6 starts to move rightwards, the opening degree of the slide valve 6 is increased, so that the compression amount of the spring 7 is increased, the hydraulic power and the spring force can be changed, in the debugging stage of the steering pump, the flow coefficient of the right end is changed by quickly replacing the damping device 1 with a smaller length-diameter ratio, the comprehensive pressure of the oil cavity on the left side of the slide valve and the oil cavity on the right side of the slide valve is changed, the debugging is carried out by continuously replacing the hydraulic resistance devices 1 with different length.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (2)
1. A steering pump with a built-in adjustable damping liquid resistance device comprises a slide valve (6), oil is arranged in the cavity of an oil pump shell positioned at the two sides of the slide valve (6), wherein a spring (7) is arranged in the oil cavity at one side, one end of the spring (7) is connected with the slide valve (6), the other end is connected with the oil pump shell, it is characterized in that a damping-adjustable liquid resistance device (1) is arranged in the steering pump, the liquid resistance device (1) is detachably connected with an oil pump shell (4), a damping hole (2) is formed in the liquid resistance device (1), one end of the damping hole (2) is communicated with an oil cavity of an oil pump shell (4) where the spring (7) is located through an oil passing hole (8) in the steering pump, the other end of the damping hole is communicated with an oil outlet (9), the adjustable damping is realized by replacing the liquid resistance device (1) with damping holes with different length-diameter ratios.
2. The steering pump with the built-in adjustable damping fluid resistance device is characterized in that the fluid resistance device (1) is provided with an external thread, the fluid resistance device (1) is installed in an oil pump shell (4) in a screwing mode through the external thread, and a hole (3) is installed inside the fluid resistance device (1) and used for tools when the fluid resistance device (1) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841421.4U CN213393296U (en) | 2020-08-28 | 2020-08-28 | Steering pump with built-in adjustable damping liquid resistance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841421.4U CN213393296U (en) | 2020-08-28 | 2020-08-28 | Steering pump with built-in adjustable damping liquid resistance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213393296U true CN213393296U (en) | 2021-06-08 |
Family
ID=76211991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021841421.4U Active CN213393296U (en) | 2020-08-28 | 2020-08-28 | Steering pump with built-in adjustable damping liquid resistance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213393296U (en) |
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2020
- 2020-08-28 CN CN202021841421.4U patent/CN213393296U/en active Active
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