CN114485565A - Mechanical swash plate inclination angle indicator for hydraulic pump motor and hydraulic pump motor - Google Patents
Mechanical swash plate inclination angle indicator for hydraulic pump motor and hydraulic pump motor Download PDFInfo
- Publication number
- CN114485565A CN114485565A CN202111678282.7A CN202111678282A CN114485565A CN 114485565 A CN114485565 A CN 114485565A CN 202111678282 A CN202111678282 A CN 202111678282A CN 114485565 A CN114485565 A CN 114485565A
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- Prior art keywords
- swash plate
- connecting block
- block
- hydraulic pump
- pump motor
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- 238000007789 sealing Methods 0.000 claims description 27
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0602—Component parts, details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a mechanical swash plate inclination angle indicator for a hydraulic pump motor and a hydraulic pump motor with the same, wherein the mechanical swash plate inclination angle indicator comprises: the bottom end of the connecting slide block is connected with the swash plate; the bottom end of the first connecting block is connected with the top end of the connecting sliding block; the bottom end of the second connecting block is connected with the top end of the first connecting block; an indication arrow is arranged on the surface of the second connecting block, and when the swash plate rotates, the second connecting block is driven by the connecting sliding block and the first connecting block to correspondingly rotate; the scale cover is sleeved on the second connecting block, and the surface of the scale cover is provided with corner scale lines; the scale cover is fixed on the shell. When the sloping cam plate rotates, through the drive of connecting slider and first connecting block for the second connecting block rotates along with the sloping cam plate, thereby makes the instruction arrow point of second connecting block rotate round the scale lid, and directional different corner scale marks to monitor the corner of sloping cam plate, has directly perceived real-time characteristics.
Description
Technical Field
The invention belongs to the technical field of hydraulic pumps, and particularly relates to a mechanical swash plate inclination angle indicator for a hydraulic pump motor and the hydraulic pump motor.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The hydraulic pump motor needs to realize the variable through the motion of sloping cam plate in the use, carries out system debugging and troubleshooting in, can only monitor the corner of sloping cam plate through electronic sensor, lacks audio-visual real-time indicating device, when signal failure and distortion appear in electronic sensor, looks for the mistake difficulty, causes the debugging cost to increase.
Disclosure of Invention
The object of the present invention is to at least solve the problem of the prior art of lacking an intuitive real-time indication device. The purpose is realized by the following technical scheme:
a first aspect of the present invention provides a mechanical swashplate tilt indicator for a hydraulic pump motor, the hydraulic pump motor including a housing and a swashplate, comprising:
the bottom end of the connecting sliding block is connected with the swash plate;
the bottom end of the first connecting block is connected with the top end of the connecting sliding block;
the bottom end of the second connecting block is connected with the top end of the first connecting block, an indicating arrow is arranged on the surface of the second connecting block, and when the swash plate rotates, the second connecting block is driven by the connecting sliding block and the first connecting block to correspondingly rotate; and
the scale cover is sleeved on the second connecting block, and the surface of the scale cover is provided with corner scale marks; the scale cover is fixed on the shell of the hydraulic pump motor.
According to the mechanical swash plate inclination angle indicator for the hydraulic pump motor, the connecting slide block is connected with the swash plate and the first connecting block, the top end of the first connecting block is connected with the second connecting block, when the swash plate rotates, the second connecting block rotates along with the swash plate under the driving of the connecting slide block and the first connecting block, so that the indicating arrow of the second connecting block rotates around the scale cover to point to different rotation angle scale marks, the rotation angle of the swash plate is monitored, and the mechanical swash plate inclination angle indicator has the characteristics of intuition and real time performance.
In addition, the mechanical swash plate inclination angle indicator for the hydraulic pump motor according to the present invention may further have the following additional technical features:
in some embodiments of the present invention, the mechanical swash plate inclination indicator for a hydraulic pump motor further includes a guide block, a part of an outer circumferential surface of the guide block is provided with an external thread, a corresponding position of an inner circumferential surface of the housing is provided with an internal thread, the guide block is screwed with the housing, and the connection slider, the first connection block, and the second connection block are provided inside the guide block.
In some embodiments of the present invention, a first sealing ring is disposed between the guide block and the housing, and the first sealing ring is in contact with a bottom surface of the scale cover.
In some embodiments of the present invention, a second sealing ring is disposed between the inner surface of the guide block and the second connection block.
In some embodiments of the invention, the mechanical swash plate angle indicator for the hydraulic pump motor further comprises an electronic sensor, an input shaft of the electronic sensor being connected to the second connection block.
In some embodiments of the invention, the electronic sensor is fixed to the second connection block by a bolt.
In some embodiments of the present invention, a third sealing ring is disposed between the first connecting block and the guide block.
In some embodiments of the present invention, a fourth sealing ring is further disposed between the guide block and the housing, and the fourth sealing ring is disposed near a top end of the external thread of the guide block.
In some embodiments of the invention, the first and second connection blocks are connected by a pin.
A second aspect of the present invention provides a hydraulic pump motor including a housing, a swash plate, and the mechanical swash plate inclination indicator for a hydraulic pump motor as described above, the mechanical swash plate inclination indicator for a hydraulic pump motor being mounted on the housing, and a bottom end of the connecting slider being connected to the swash plate.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a sectional view schematically showing a mechanical swash plate inclination indicator for a hydraulic pump motor according to an embodiment of the present invention in a use state;
FIG. 2 schematically illustrates a schematic diagram of a mechanical swash plate angle indicator for a hydraulic pump motor in use, according to an embodiment of the present invention;
fig. 3 is a perspective view (with a housing removed) schematically showing a mechanical swash plate inclination indicator for a hydraulic pump motor according to an embodiment of the present invention in a use state.
The reference numbers are as follows:
1-a shell;
2-a scale cover; 21-corner scale mark;
3-a first sealing ring;
4-a second sealing ring;
5-an electronic sensor;
6-bolt;
7-a first connection block;
8-a guide block;
9-a second connecting block; 91-indicates an arrow;
10-connecting a slider;
11-a swash plate;
12-a third sealing ring;
13-fourth seal ring.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 3, fig. 1 is a sectional view taken along the a-a plane in fig. 2. According to an embodiment of the present invention, there is provided a mechanical swash plate inclination indicator for a hydraulic pump motor including a housing 1 and a swash plate 11, the mechanical swash plate inclination indicator for a hydraulic pump motor including:
the connecting slide block 10, the bottom end of the connecting slide block 10 is connected with the swash plate 11;
the bottom end of the first connecting block 7 is connected with the top end of the connecting slide block 10;
the bottom end of the second connecting block 9 is connected with the top end of the first connecting block 7; an indication arrow 91 is arranged on the surface of the second connecting block 9, and when the swash plate 11 rotates, the second connecting block 9 is driven by the connecting slide block 10 and the first connecting block 7 to rotate correspondingly; and
the scale cover 2 is sleeved on the second connecting block 9, and the surface of the scale cover 2 is provided with corner scale marks 21; the scale cover 2 is fixed to the housing 1 of the hydraulic pump motor.
According to the mechanical swash plate inclination angle indicator for the hydraulic pump motor, the connecting slide block 10 is connected with the swash plate 11 and the first connecting block 7, the top end of the first connecting block 7 is connected with the second connecting block 9, when the swash plate 11 rotates, the second connecting block 9 rotates along with the swash plate 11 under the driving of the connecting slide block 10 and the first connecting block 7, so that the indicating arrow 91 of the second connecting block 9 rotates around the scale cover 2 and points to different corner scale marks 21, the corner of the swash plate 11 is monitored, and the mechanical swash plate inclination angle indicator has the characteristics of intuition and real time performance. The connecting sliding block 10 may be a rectangular block with a protrusion, the protrusion is accommodated inside the first connecting block 7, the rectangular block is partially located in the first connecting block 7, and the rest is located in the swash plate 11. Specifically, the groove is arranged at the center of the swash plate 11 and the first connecting block 7, the groove with the rectangular cross section is arranged on the swash plate 11, the groove with the rectangular cross section is arranged on the first connecting block 7, and another groove matched with the protrusion is arranged in the groove. The connecting slide block 10 is free in the limited space, so that compared with a fixed block, the requirement on the coaxiality of the first connecting block 7, the second connecting block 9 and the connecting slide block 10 can be reduced, and the processing and the installation are convenient.
The first connecting block 7 and the second connecting block 9 are coaxially arranged and are connected in a connecting mode such as a pin or a spline.
The scale cover 2 can be in a circular ring disk shape, the surface of the scale cover is provided with corner scale marks 21 along the circumferential direction, the corner scale marks 21 can be partially or completely arranged on the surface of the scale cover 2 and set according to the rotation angle of the swash plate 11, and in a preferred embodiment, the scale marks 21 are partially arranged on the scale cover 2 to meet the rotation requirement of the swash plate 11.
The mechanical swash plate inclination angle indicator for the hydraulic pump motor further comprises a guide block 8, wherein part of the outer peripheral surface of the guide block 8 is provided with an external thread, the corresponding position of the inner peripheral surface of the shell 1 is provided with an internal thread, and the guide block 8 is in threaded connection with the shell 1; the guide block 8 is internally provided with a connecting slide block 10, a first connecting block 7 and a second connecting block 9.
By providing the guide block 8, it is possible to receive the connecting slider 10, the first connecting block 7 and the second connecting block 9, to mount these components and to limit them to rotate inside the guide block 8, and to mount the entire hydraulic pump motor mechanical swash plate inclination indicator on the hydraulic pump motor housing 1 by connecting them to the housing 1.
A first sealing ring 3 is arranged between the guide block 8 and the shell 1, and the first sealing ring 3 is contacted with the bottom surface of the scale cover 2. Wherein, first sealing washer 3 sets up on the upper portion of guide block 8, and its surface sets up to the stairstepping, can realize better sealed effect through first sealing washer 3, because first sealing washer 3 is close to the surface setting of casing 1, consequently, first sealing washer 3's sealed effect is crucial, through this kind of mode of setting, can realize good sealed, prevents that the oil body from revealing.
A fourth sealing ring 13 is further arranged between the guide block 8 and the shell 1, and the fourth sealing ring 13 is arranged close to the top end of the external thread of the guide block 8. At this time, the guide block 8 is provided with a groove along the circumferential direction thereof, and the fourth seal ring 13 is placed in the groove, so that the seal between the guide block 8 and the housing 1 is realized, and a double seal effect can be formed with the first seal ring 3.
A second sealing ring 4 is arranged between the inner surface of the guide block 8 and the second connecting block 9. Wherein, the second sealing ring 4 between the second connecting block 9 and the guide block 8 can prevent oil from leaking from the contact surface between the two. A third sealing ring 12 is arranged between the first connecting block 7 and the guide block 8. Wherein, the third sealing washer 12 can realize further sealed, prevents that the oil body that leads to after the second sealing washer 4 became invalid from leaking outward, and when normal use, accessible second sealing washer 4 and third sealing washer 12 realize the double seal to the contact surface between first connecting block 7 and the guide block 8.
The mechanical swash plate inclination angle indicator for the hydraulic pump motor further comprises an electronic sensor 5, and an input shaft of the electronic sensor 5 is connected with the second connecting block 9. The electronic sensor 5 obtains the rotation angle of the second connecting block 9 through the input shaft, so that the rotation angle of the swash plate 11 is obtained, the electronic sensor 5 outputs an electric signal, and the rotation angle of the swash plate 11 is tested through the output of the electric signal. The specific test process can be controlled by using a controller, and the scheme in the prior art is adopted, so that the detailed description is omitted.
The electronic sensor 5 is fixed on the second connecting block 9 by bolts 6. Wherein, electronic sensor 5 is installed in the central point of second connecting block 9 and puts, realizes electronic sensor 5's detachable connection through bolt 6, when not needing, can remove electronic sensor 5.
The first connecting block 7 and the second connecting block 9 are connected by a pin. The first connecting block 7 and the second connecting block 9 are in transmission connection through sliding pins, and the connecting structure is simple and convenient to connect, and certainly, the movement transmission can also be performed through connecting modes such as splines.
The present invention also provides a hydraulic pump motor including a housing 1, a swash plate 11, and a mechanical swash plate inclination indicator for a hydraulic pump motor as mentioned above, the mechanical swash plate inclination indicator for a hydraulic pump motor being mounted on the housing 1, and a bottom end of a connecting slider 10 being connected to the swash plate 11. In particular, the connection to the swash plate 11 is realized by the connecting slide 10 being partially accommodated in the swash plate 11.
When the swash plate is used, when the swash plate 11 rotates, the connecting slide block 10 drives the first connecting block 7 to rotate, the first connecting block 7 drives the second connecting block 9 to rotate, the electronic sensor 5 outputs an electric signal by rotating the second connecting block 9, and the electric signal is monitored in an electric signal mode. At the same time, the indication arrow 91 on the second connecting block 9 will rotate around the rotation angle scale line 21 of the scale cover 2, so as to visually monitor the rotation condition of the swash plate 11.
The hydraulic pump motor has two modes of mechanical indication and electric signal output to test the rotation angle of the swash plate 11, and is safer and more reliable. In addition, the mechanical indication mode and the electric signal output mode can be mutually corrected, so that the signals are not distorted, and the safety performance is improved. In addition, when the signal of the electronic sensor 5 is failed and distorted, the rotation angle of the swash plate 11 can be monitored through a mechanical swash plate inclination angle indicator, and the debugging cost is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A mechanical swashplate tilt indicator for a hydraulic pump motor, the hydraulic pump motor including a housing and a swashplate, comprising:
the bottom end of the connecting sliding block is connected with the swash plate;
the bottom end of the first connecting block is connected with the top end of the connecting sliding block;
the bottom end of the second connecting block is connected with the top end of the first connecting block, an indicating arrow is arranged on the surface of the second connecting block, and when the swash plate rotates, the second connecting block is driven by the connecting sliding block and the first connecting block to correspondingly rotate; and
the scale cover is sleeved on the second connecting block, corner scale marks are arranged on the surface of the scale cover, and the scale cover is fixed on the shell.
2. The mechanical swash plate angle indicator for hydraulic pump motor according to claim 1, further comprising a guide block, wherein a part of the outer circumferential surface of the guide block is provided with an external thread, a corresponding position of the inner circumferential surface of the housing is provided with an internal thread, the guide block is screw-coupled with the housing, and the connection block, the first connection block and the second connection block are provided inside the guide block.
3. The mechanical swash plate angle indicator for hydraulic pump motor as claimed in claim 2, wherein a first sealing ring is provided between the guide block and the housing, the first sealing ring contacting with a bottom surface of the scale cover.
4. The mechanical swash plate angle indicator for hydraulic pump motor as claimed in claim 2, wherein a second sealing ring is provided between the inner surface of the guide block and the second connecting block.
5. The mechanical swash plate angle indicator for a hydraulic pump motor as claimed in claim 1, further comprising an electronic sensor, an input shaft of the electronic sensor being connected to the second connection block.
6. The mechanical swash plate angle indicator for hydraulic pump motor as claimed in claim 5, wherein the electronic sensor is fixed to the second connecting block by bolts.
7. The mechanical swash plate angle indicator for hydraulic pump motor as claimed in claim 2, wherein a third seal ring is provided between the first connecting block and the guide block.
8. The mechanical swash plate angle indicator for hydraulic pump motor as claimed in claim 2, wherein a fourth seal ring is further provided between the guide block and the housing, the fourth seal ring being provided near the top end of the external thread of the guide block.
9. The mechanical swash plate angle indicator for a hydraulic pump motor as claimed in claim 1, wherein the first connecting block and the second connecting block are connected by a pin.
10. A hydraulic pump motor comprising a housing, a swash plate, and the mechanical swash plate inclination indicator for a hydraulic pump motor according to any one of claims 1 to 9, wherein the mechanical swash plate inclination indicator for a hydraulic pump motor is mounted on the housing, and the bottom end of the connecting block is connected to the swash plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678282.7A CN114485565B (en) | 2021-12-31 | 2021-12-31 | Mechanical sloping cam plate inclination indicator for hydraulic pump motor and hydraulic pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678282.7A CN114485565B (en) | 2021-12-31 | 2021-12-31 | Mechanical sloping cam plate inclination indicator for hydraulic pump motor and hydraulic pump motor |
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| Publication Number | Publication Date |
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| CN114485565A true CN114485565A (en) | 2022-05-13 |
| CN114485565B CN114485565B (en) | 2024-05-17 |
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