CN201934252U - Oil distributing device of hydraulic motor - Google Patents
Oil distributing device of hydraulic motor Download PDFInfo
- Publication number
- CN201934252U CN201934252U CN2010206775773U CN201020677577U CN201934252U CN 201934252 U CN201934252 U CN 201934252U CN 2010206775773 U CN2010206775773 U CN 2010206775773U CN 201020677577 U CN201020677577 U CN 201020677577U CN 201934252 U CN201934252 U CN 201934252U
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- CN
- China
- Prior art keywords
- oil
- hydraulic motor
- food tray
- velocity rod
- distributing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an oil distributing device of a hydraulic motor, which comprises an oil communicating tray (1) and an oil distributing tray (2) which is arranged in the oil communicating tray (1) and driven to rotate by a crankshaft. The oil distributing device is characterized in that a velocity rod (3) capable of rotating relative to the oil communicating tray (1) is arranged on the back of the oil communicating tray (1) in a penetrating manner, and is connected with the back of the oil distributing tray (2) after passing through a low-pressure cavity (11) of the oil communicating tray so as to be capable of rotating along with the oil distributing tray (2), and the outer end of the velocity rod (3) is exposed from the oil communicating tray (1) to be connected with a velocity testing component. The velocity rod synchronously rotates along with the oil distributing tray, and the velocity testing component at the outer end of the velocity rod is driven to rotate, so that test for the rotational velocity of the oil distributing tray is completed. The rotational velocity of the oil distributing tray is the same with that of the crankshaft in the hydraulic motor, and test for the rotational velocity of the hydraulic motor is realized finally.
Description
Technical field
The utility model relates to a kind of distributing device of oil hydraulic motor.
Background technique
Existing crankshaft connecting rod type oil hydraulic motor has generally included housing, logical food tray, oil distribution casing, plunger case and crankshaft group, wherein, crankshaft group is made up of bent axle, bearing housing and many rows roller of being positioned at bearing housing, plunger case is an odd number, be evenly distributed on the circumference of bent axle respectively radially, plunger in the plunger case and connection rod sphere ball-joint connection mutually, the cylndrical surface of connecting rod bottom contacts with bearing housing, bent axle is bearing in housing and the capping by bearing, one end of bent axle links to each other with oil distribution casing by the double end key, and the other end then is used for driving load.During use, when pressure oil by logical food tray through oil distribution casing, when housing enters into plunger case, the action of hydraulic force that pressure oil produces is in plunger head, this hydraulic coupling resolves into along the power at the crank throw center of connecting rod center line sensing bent axle and the lateral force that the plunger case inwall is produced, the former tangential force produces moment of torsion to the rotating center of bent axle, make bent axle around the rotation of crankshaft rotating center, thereby realize hydraulic pressure can be converted into mechanical energy, be the purpose of working machine output speed and moment of torsion.
As a patent No. is the Chinese utility model patent " crankshaft connecting rod type oil hydraulic motor " of ZL03231170.2 (notification number is CN2622454Y), and a patent No. is that the Chinese utility model patent " end-face compensate is joined oily crankshaft connecting rod type oil hydraulic motor " of ZL98224223.9 (notification number is CN2336123Y) has just disclosed a kind of so similar hydraulic motor structure.
According to the needs that reality is used, need to measure the rotating speed of oil hydraulic motor under a lot of situations, yet existing crankshaft connecting rod type oil hydraulic motor all do not have the function of test speed of crankshaft.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of distributing device with oil hydraulic motor of speed measuring function at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of distributing device of oil hydraulic motor, include logical food tray and be arranged on the interior oil distribution casing of logical food tray by the bent axle driven rotary, it is characterized in that: described logical food tray rear portion is equipped with the velocity rod that can lead to the food tray rotation relatively, be connected with the rear portion of oil distribution casing after the low-pressure cavity of this velocity rod by logical food tray, so that velocity rod can rotate with oil distribution casing, logical food tray is exposed in order to the connection parts that test the speed in the outer end of described velocity rod.
Above-mentioned logical food tray rear portion has the tapped hole that is communicated with the low-pressure cavity of leading to food tray, and this tapped hole internal thread is connected with the location swivel nut, and described velocity rod is connected with oil distribution casing after passing the location swivel nut, and velocity rod is spacing vertically in the swivel nut of location.This structure is convenient to velocity rod is installed on the logical food tray, velocity rod is installed on the swivel nut of location earlier during installation, will locate swivel nut then and be threaded in the tapped hole, and velocity rod is connected with oil distribution casing, just finishes installation.Certainly velocity rod also can adopt alternate manner to install.
Swivel nut outer end, above-mentioned location has outer blocking shoulder, is provided with seal ring between the ear end face of this outer blocking shoulder and logical food tray and carries out liquid sealing.This structure can prevent effectively that the hydraulic oil in the low-pressure cavity from leaking outside by the gap between location swivel nut and the tapped hole.
Being provided with oil sealing between the inner hole wall of the rear end outer circumferential face of above-mentioned velocity rod and location swivel nut seals.This structure prevents that effectively the hydraulic oil in the low-pressure cavity from leaking outside by the gap between location swivel nut and the velocity rod.
Be provided with the location axle sleeve between the inner hole wall of above-mentioned velocity rod outer circumferential face and location swivel nut.The location axle sleeve can adopt the higher metal of hardness to make, and as Cuprum alloy, the friction factor between velocity rod and the location axle sleeve is little, and velocity rod rotates more smooth and easy.
The inner of above-mentioned velocity rod has the insertion part that the cross section is rectangle, and the ear end face of described oil distribution casing has the slot that profile and insertion part match, and described insertion part is plugged in this slot.This structure is convenient to be connected velocity rod with oil distribution casing, can also guarantee that velocity rod can rotate with oil distribution casing, and the profile of certain insertion part and slot also can be polygonal, semicircle or other is non-circular.
Above-mentioned velocity rod middle part has annular shoulder block, and axially the back is spacing in the swivel nut of location with velocity rod for annular shoulder block.Owing to have certain pressure in the low-pressure cavity of logical food tray, annular shoulder block can be pressed to the interior edge face of location swivel nut, so be provided with cushion block between this annular shoulder block and the location swivel nut interior edge face, also be provided with pad between described annular shoulder block and the cushion block.Pad can adopt the higher metal of hardness to make like this, and as Cuprum alloy, the friction factor between annular shoulder block and the pad is little, and velocity rod rotates more smooth and easy.
The outer end of above-mentioned velocity rod is fixed with a connecting sleeve after exposing logical food tray, and this connecting sleeve perisporium is provided with the keyway that connects for the parts that test the speed.Connecting sleeve is set comes the positioning-speed-measuring parts can reduce the difficulty of processing of velocity rod, also the parts that test the speed directly can be positioned at the outer end of velocity rod certainly.
Compared with prior art, advantage of the present utility model is: its rear portion at logical food tray is equipped with the velocity rod that can rotate with oil distribution casing, so just, the parts that test the speed can be installed on velocity rod, parts just can detect the rotating speed of oil distribution casing by testing the speed, and the rotating speed of oil distribution casing is identical with speed of crankshaft in the oil hydraulic motor, and final the realization detected the rotating speed of oil hydraulic motor.
Description of drawings
Fig. 1 is the utility model embodiment's a structure sectional view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, be a preferred embodiment of the present utility model.
A kind of distributing device of oil hydraulic motor, include logical food tray 1 and be arranged on logical food tray 1 interior oil distribution casing 2 by the bent axle driven rotary, the structure of oil distribution casing 2, and the mode that oil distribution casing 2 is installed in the logical food tray 1 can be with reference to prior art, as the patent No. is the Chinese utility model patent " crankshaft connecting rod type oil hydraulic motor " of ZL03231170.2 (notification number is CN2622454Y), or the patent No. is the hydraulic motor structure that has disclosed in the Chinese utility model patent " end-face compensate is joined oily crankshaft connecting rod type oil hydraulic motor " of ZL98224223.9 (notification number is CN2336123Y).
Logical food tray 1 rear portion is equipped with the velocity rod 3 that can lead to food tray 1 rotation relatively, this velocity rod 3 is connected with the rear portion of oil distribution casing 2 by low-pressure cavity 11 backs of logical food tray, so that velocity rod 3 can be with oil distribution casing 2 rotation, logical food tray 1 is exposed in order to the connection parts that test the speed in the outer end of velocity rod 3; The outer end of velocity rod 3 fixes with a connecting sleeve 9 after exposing logical food tray 1 in the present embodiment, and these connecting sleeve 9 perisporiums are provided with the keyway 91 that connects for the parts that test the speed.The parts that test the speed generally adopt the detecting element of magnetic induction, and it is the routine mode that tests the speed.
Claims (8)
1. the distributing device of an oil hydraulic motor, include logical food tray (1) and be arranged on the interior oil distribution casing (2) of logical food tray (1) by the bent axle driven rotary, it is characterized in that: described logical food tray (1) rear portion is equipped with the velocity rod (3) that can lead to food tray (1) rotation relatively, this velocity rod (3) is connected with the rear portion of oil distribution casing (2) by low-pressure cavity (11) back of logical food tray, so that velocity rod (3) can be with oil distribution casing (2) rotation, logical food tray (1) is exposed in order to the connection parts that test the speed in the outer end of described velocity rod (3).
2. the distributing device of oil hydraulic motor according to claim 1, it is characterized in that: described logical food tray (1) rear portion has the tapped hole (12) that is communicated with the low-pressure cavity (11) of described logical food tray, this tapped hole (12) internal thread is connected with location swivel nut (4), described velocity rod (3) passes this location swivel nut (4) back and is connected with described oil distribution casing (2), and velocity rod (3) is spacing vertically in location swivel nut (4).
3. the distributing device of oil hydraulic motor according to claim 2, it is characterized in that: described location swivel nut (4) outer end has outer blocking shoulder (41), is provided with seal ring (5) between the ear end face of this outer blocking shoulder (41) and logical food tray (1) and carries out liquid sealing.
4. the distributing device of oil hydraulic motor according to claim 3 is characterized in that: be provided with oil sealing (10) between the inner hole wall of the rear end outer circumferential face of described velocity rod (3) and location swivel nut (4) and seal.
5. the distributing device of oil hydraulic motor according to claim 2 is characterized in that: be provided with location axle sleeve (6) between the inner hole wall of described velocity rod (3) outer circumferential face and location swivel nut (4).
6. the distributing device of oil hydraulic motor according to claim 5, it is characterized in that: the inner of described velocity rod (3) has the insertion part (31) that the cross section is rectangle, the ear end face of described oil distribution casing (2) has the slot (21) that profile and insertion part (31) match, and described insertion part (31) are plugged in this slot (21).
7. the distributing device of oil hydraulic motor according to claim 5, it is characterized in that: described velocity rod (3) middle part has annular shoulder block (32), be provided with cushion block (7) between this annular shoulder block (32) and location swivel nut (4) interior edge face, also be provided with pad (8) between described annular shoulder block (32) and the cushion block (7).
8. according to the distributing device of the described oil hydraulic motor of arbitrary claim in the claim 1～7, it is characterized in that: it is fixing with a connecting sleeve (9) that logical food tray (1) back is exposed in the outer end of described velocity rod (3), and this connecting sleeve (9) perisporium is provided with the keyway (91) that connects for the parts that test the speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206775773U CN201934252U (en) | 2010-12-13 | 2010-12-13 | Oil distributing device of hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206775773U CN201934252U (en) | 2010-12-13 | 2010-12-13 | Oil distributing device of hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934252U true CN201934252U (en) | 2011-08-17 |
Family
ID=44445771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206775773U Expired - Fee Related CN201934252U (en) | 2010-12-13 | 2010-12-13 | Oil distributing device of hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661235A (en) * | 2012-03-26 | 2012-09-12 | 宁波新宏液压有限公司 | Speedometer for radial piston hydraulic motor |
-
2010
- 2010-12-13 CN CN2010206775773U patent/CN201934252U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661235A (en) * | 2012-03-26 | 2012-09-12 | 宁波新宏液压有限公司 | Speedometer for radial piston hydraulic motor |
| CN102661235B (en) * | 2012-03-26 | 2015-08-19 | 宁波新宏液压有限公司 | A kind of speedometer for radial piston hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20171213 |