CN201916111U - Oil distribution device of hydraulic motor - Google Patents
Oil distribution device of hydraulic motor Download PDFInfo
- Publication number
- CN201916111U CN201916111U CN2010206775699U CN201020677569U CN201916111U CN 201916111 U CN201916111 U CN 201916111U CN 2010206775699 U CN2010206775699 U CN 2010206775699U CN 201020677569 U CN201020677569 U CN 201020677569U CN 201916111 U CN201916111 U CN 201916111U
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- disc
- seal disc
- oil
- rod
- food tray
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Abstract
The utility model relates to an oil distribution device of a hydraulic motor, which comprises an oil flowing disc and an oil distribution disc. A rear inner cavity is arranged in the rear of the oil flowing disc. The oil distribution device is characterized in that the rear of the oil flowing disc is successively provided with a front sealing disc and a rear sealing disc, the rear sealing disc, the front sealing disc and the oil flowing disc are fastened together, a cavity is formed between the front sealing disc and the rear sealing disc, a speed measuring rod is connected with the rear of the oil distribution disc after successively penetrating through the rear sealing disc and the front sealing disc, and the outer end of the speed measuring rod is exposed to the rear end surface of the rear sealing disc so as to be connected with a speed measuring component. The front sealing disc and the oil flowing disc are sealed excellently, the front sealing disc and the rear sealing disc are firmly fixed with the oil flowing disc, accordingly oil does not leak easily and rotation of the speed measuring rod cannot be affected even if the high-pressure oil flows in the rear inner cavity of the oil flowing disc, low-pressure oil can more smoothly flow in the rear inner cavity of the oil flowing disc, and rotation speed of the oil distribution disc can be measured regardless of positive rotation and negative rotation of the oil distribution disc, thereby realizing bidirectional speed measurement.
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 positive and negative rotating speed of hydraulic motor output shaft under a lot of situations, yet existing crankshaft connecting rod type oil hydraulic motor all do not have the function of the positive and negative rotating speed of test output shaft.
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 positive and negative 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, has rear interior cavity in the logical food tray rear portion, it is characterized in that: seal disc and back seal disc before described logical food tray rear portion is provided with successively, described back seal disc, preceding seal disc and logical food tray tighten together, be liquid sealing between preceding seal disc and the logical food tray and between back seal disc and the preceding seal disc, and form cavity between preceding seal disc and the back seal disc, be connected with the rear portion of oil distribution casing after having the rod member that tests the speed to pass back seal disc and preceding seal disc successively, rod member can rotate with oil distribution casing so that test the speed, the outer end of the described rod member that tests the speed expose the back seal disc ear end face and in order to the connection parts that test the speed.
As improvement, the above-mentioned rod member that tests the speed is made up of preceding velocity rod and back velocity rod, velocity rod is positioned at the rear interior cavity of logical food tray before described, described back velocity rod is installed in the cavity by thrust-bearing, before the front end of velocity rod connect with the rear portion of oil distribution casing and rotate with oil distribution casing, before the rear end of velocity rod connect with the back velocity rod behind the seal disc before passing and after driving velocity rod rotate the ear end face of seal disc after expose the outer end of back velocity rod and in order to the connection parts that test the speed.The rod member that will test the speed is provided with by preceding velocity rod and back velocity rod structure dimerous, have easy to assembly, and velocity rod and back velocity rod before being easy to process.Certainly the rod member that the rod member that tests the speed also can be structure as a whole.
Be provided with plunger ring and seal ring sealing between the front end outer circumferential face of above-mentioned back velocity rod and the inwall of cavity, be provided with oil sealing between the rear end outer circumferential face of back velocity rod and the inwall of cavity and seal.
The front end of velocity rod has the preceding insertion part that the cross section is rectangle before above-mentioned, and the rear end of preceding velocity rod has the back insertion part that the cross section is rectangle; The ear end face of described oil distribution casing has the preceding slot that profile and preceding insertion part match, and the interior edge face of described back velocity rod has the back slot that profile and insertion part, back match; In the slot, back insertion part was plugged in the slot of back before described preceding insertion part was plugged in.This structure is convenient to be connected preceding velocity rod with oil distribution casing and back velocity rod, before can also guaranteeing velocity rod and after velocity rod can rotate with oil distribution casing, the profile of certain insertion part and slot also can be polygonal, semicircle or other is non-circular.
The above-mentioned back velocity rod perisporium that exposes logical food tray is provided with the keyway that connects for the parts that test the speed.
Further improve, have the drainback passage that is communicated with described cavity on above-mentioned logical food tray and the preceding seal disc.In use for some time, inevitably have in a small amount of hydraulic oil enters cavity between back seal disc and the preceding seal disc from the rear interior cavity of logical food tray, and after drainback passage is set, can be drained into and carry out second use in the motor casing entering hydraulic oil in the cavity, simultaneously can also guarantee not oil-collecting in the inner chamber, guarantee that the back velocity rod rotates smooth and easy.
Compared with prior art, advantage of the present utility model is: its rear portion at logical food tray is equipped with the rod member that tests the speed 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; Form good sealing between preceding in addition seal disc and the logical food tray, and preceding seal disc is in the same place with back seal disc and logical food tray firm fixation, even so in the rear interior cavity of logical food tray, lead to high pressure oil, also not easy oil leakage, also can not influence simultaneously the rotation of the rod member that tests the speed, and logical low pressure oil is just more no problem in the rear interior cavity of logical food tray, and therefore no matter oil distribution casing is just changeing the rotating speed that still counter-rotating all can be measured oil distribution casing, realizes two-way range rate measurement.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to sectional view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2, 3, 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, has rear interior cavity 11 in logical food tray 1 rear portion, in general rear interior cavity 11 uses as low-pressure cavity, 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 discloses 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).
The aforesaid rod member that tests the speed is made up of preceding velocity rod 6 and back velocity rod 7, preceding velocity rod 6 is positioned at the rear interior cavity 11 of logical food tray, back velocity rod 7 is installed in the cavity 31 by thrust-bearing 8, be provided with plunger ring 9 and seal ring 10 sealings between the front end outer circumferential face of back velocity rod 7 and the inwall of cavity 31, be provided with oil sealing 12 between the rear end outer circumferential face of back velocity rod 7 and the inwall of cavity 31 and seal, back velocity rod 7 perisporiums that expose logical food tray 1 are provided with the keyway 72 that connects for the parts that test the speed.
The front end of preceding velocity rod 6 has the preceding insertion part 61 that the cross section is rectangle, and the rear end of preceding velocity rod 6 has the back insertion part 62 that the cross section is rectangle; The ear end face of oil distribution casing 2 has the preceding slot 21 that profile and preceding insertion part 61 match, and the interior edge face of back velocity rod 7 has the back slot 71 that profile and insertion part 62, back match; In the slot 21, back insertion part 62 was plugged in the slot 71 of back before preceding insertion part 61 was plugged in; Therefore velocity rod 6 and back velocity rod 7 rotated together before the energy of rotation of oil distribution casing 2 drove simultaneously.
Preceding velocity rod 6 and back velocity rod 7 are synchronously with oil distribution casing 2 rotations, drive the test component rotation on the velocity rod 7 of back, finishing the detection to oil distribution casing 2 rotating speeds, and the rotating speed of oil distribution casing 2 is identical with speed of crankshaft in the oil hydraulic motor, and final the realization detected the rotating speed of oil hydraulic motor; Form good sealing between preceding in addition seal disc 3 and the logical food tray 1, and preceding seal disc 3 is in the same place with logical food tray 1 firm fixation with back seal disc 4, even so in the rear interior cavity 11 of logical food tray, lead to high pressure oil, not easy oil leakage, also can not influence simultaneously the rotation of the rod member that tests the speed, and logical low pressure oil is just more no problem in the rear interior cavity of logical food tray, and therefore no matter oil distribution casing is just changeing the rotating speed that still counter-rotating all can be measured oil distribution casing, realizes two-way range rate measurement.
Claims (6)
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, has rear interior cavity (11) in logical food tray (1) rear portion, it is characterized in that: described logical food tray (1) rear portion is provided with preceding seal disc (3) and back seal disc (4) successively, described back seal disc (4), preceding seal disc (3) and logical food tray (1) tighten together, be liquid sealing between preceding seal disc (3) and the logical food tray (1) and between back seal disc (4) and the preceding seal disc (3), and form cavity (31) between preceding seal disc (3) and the back seal disc (4), having the rod member that tests the speed to pass back seal disc (4) successively is connected with the rear portion of oil distribution casing (2) with preceding seal disc (3) back, rod member can be with oil distribution casing (2) rotation so that test the speed, the outer end of the described rod member that tests the speed expose back seal disc (4) ear end face and in order to the connection parts that test the speed.
2. the distributing device of oil hydraulic motor according to claim 1, it is characterized in that: the described rod member that tests the speed is made up of preceding velocity rod (6) and back velocity rod (7), velocity rod (6) is positioned at the rear interior cavity (11) of logical food tray before described, described back velocity rod (7) is installed in the cavity (31) by thrust-bearing (8), before the front end of velocity rod (6) with the connection of the rear portion of oil distribution casing (2) and rotate with oil distribution casing (2), before the rear end of velocity rod (6) pass preceding seal disc (3) back connect with back velocity rod (7) and can drive after velocity rod (7) rotate the ear end face of seal disc (4) after expose the outer end of back velocity rod (7) and in order to the connection parts that test the speed.
3. the distributing device of oil hydraulic motor according to claim 2, it is characterized in that: be provided with plunger ring (9) and seal ring (10) sealing between the front end outer circumferential face of described back velocity rod (7) and the inwall of cavity (31), be provided with oil sealing (12) between the inwall of the rear end outer circumferential face of back velocity rod (7) and cavity (31) and seal.
4. the distributing device of oil hydraulic motor according to claim 2 is characterized in that: the front end of velocity rod (6) has the preceding insertion part (61) that the cross section is rectangle before described, and the rear end of preceding velocity rod (6) has the back insertion part (62) that the cross section is rectangle; The ear end face of described oil distribution casing (2) has the preceding slot (21) that profile and preceding insertion part (61) match, and the interior edge face of described back velocity rod (7) has the back slot (71) that profile and insertion part, back (62) match; Described preceding insertion part (61) is plugged in the preceding slot (21), and back insertion part (62) are plugged in the back slot (71).
5. the distributing device of oil hydraulic motor according to claim 2 is characterized in that: described back velocity rod (7) perisporium that exposes logical food tray (1) is provided with the keyway (72) that connects for the parts that test the speed.
6. according to the distributing device of the described oil hydraulic motor of arbitrary claim in the claim 1～5, it is characterized in that: have the drainback passage (5) that is communicated with described cavity (31) on described logical food tray (1) and the preceding seal disc (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206775699U CN201916111U (en) | 2010-12-13 | 2010-12-13 | Oil distribution device of hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206775699U CN201916111U (en) | 2010-12-13 | 2010-12-13 | Oil distribution device of hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916111U true CN201916111U (en) | 2011-08-03 |
Family
ID=44415910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206775699U Expired - Fee Related CN201916111U (en) | 2010-12-13 | 2010-12-13 | Oil distribution device of hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916111U (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 CN2010206775699U patent/CN201916111U/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: 20110803 Termination date: 20171213 |