CN202833600U - Connecting rod of hydraulic motor - Google Patents
Connecting rod of hydraulic motor Download PDFInfo
- Publication number
- CN202833600U CN202833600U CN 201220398869 CN201220398869U CN202833600U CN 202833600 U CN202833600 U CN 202833600U CN 201220398869 CN201220398869 CN 201220398869 CN 201220398869 U CN201220398869 U CN 201220398869U CN 202833600 U CN202833600 U CN 202833600U
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- connecting rod
- hydraulic motor
- rod
- face
- oil
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Abstract
The utility model relates to a connecting rod of a hydraulic motor. The connecting rod of the hydraulic motor comprises a rod body (1), a spherical head portion (2) is located at the upper end of the rod body (1), an oil passage (3) penetrating axially is located at the axis position of the rod body (1), and the end face of the bottom of the rod body (1) contacts a bearing sleeve of the hydraulic motor. The connecting rod of the hydraulic motor is characterized in that the end face of the bottom of the rod body (1) is an inward-concave ball socket surface (4). When the ball socket surface is machined, no special fixture is required for locating the connecting rod for further machining, a fixture of a general machine tool is required for locating the connecting rod, then the ball socket surface is machined, the machining is convenient, and cost is low. In addition, spherical contact can be formed between the end face of the bottom of the connecting rod and the bearing sleeve, stress uniformity of the connecting rod is achieved, the connecting rod is not prone to fatigability to be fractured, and maintenance cost of the hydraulic motor is lowered. When the hydraulic motor works, the connecting rod can slowly revolve around the axis of the connecting rod, abrasion of the connecting rod is even, and normal working of the hydraulic motor is guaranteed.
Description
Technical field
The utility model relates to a kind of connecting rod of oil hydraulic motor.
Background technique
Existing crank shaft-connection-lever type hydraulic generally includes housing, bent axle, logical food tray, oil distribution casing, plunger case, capping and plunger body, wherein, plunger case is odd number, be evenly distributed on radially respectively on the circumference of bent axle, plunger body in the plunger case is connected with the bulb phase ball-joint on connecting rod top, the cylndrical surface of connecting rod bottom contacts with the eccentric bushing in the bent axle, the shaft core position of connecting rod has the oil duct that axially runs through, d-axis in the bent axle is bearing in housing and the capping by bearing, an end of d-axis links to each other with oil distribution casing by double-end key in the bent axle, and the other end of d-axis then is used for being with dynamic load to rotate.During use, when pressure oil enters into plunger case by the logical runner of food tray in oil distribution casing, housing, the action of hydraulic force that pressure oil produces is in the plunger body top, 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 its rotating center rotation, thereby realize with hydraulic energy transfer being mechanical energy, be the purpose of working machine output speed and moment of torsion.
Such as Fig. 4, shown in 5, existing connecting rod 1 ' bottom end face is the cambered surface 3 ' of the indent that matches with the bearing housing profile, the bottom of connecting rod is rectangle overlooking under the state, when processing the cambered surface of connecting rod bottom indent, need special anchor clamps that workpiece is positioned, processing difficulties is inconvenient, bottom owing to connecting rod is rectangle in addition, four corners of connecting rod bottom end face are relatively weaker, oil hydraulic motor in the course of the work, bearing housing has wearing and tearing all the time to the connecting rod bottom, and it is inhomogeneous to wear and tear, the connecting rod unbalance stress, cause the oil hydraulic motor job insecurity, four of the connecting rod bottom end face corner discontinuity cause connecting rod more fatiguability fracture under the effect of alternating stress in addition, increase maintenance cost.
Be the structure of a kind of connecting rod of hydraulic motor the Chinese utility model patent " crank shaft-connection-lever type hydraulic " of ZL200620105572.7 (notification number is CN2924113Y) has disclosed such as a patent No..
Summary of the invention
Technical problem to be solved in the utility model is to provide the simply and easily connecting rod of oil hydraulic motor of a kind of processing for above-mentioned prior art present situation, can guarantee that the connecting rod bottom abrasion is even in the working procedure simultaneously.
The utility model solves the problems of the technologies described above the technological scheme that adopts: a kind of connecting rod of oil hydraulic motor, comprise the body of rod, the upper end of the body of rod has ball head, the shaft core position place of the body of rod has the oil duct that axially runs through, the bottom end face of the body of rod contacts with the bearing housing of oil hydraulic motor, it is characterized in that: the bottom end face of the described body of rod is the ball-and-socket face of indent.
The bottom of the above-mentioned body of rod is overlooked under the state roundedly, and the periphery of body of rod bottom has the conical surface.Because the periphery of body of rod bottom has the conical surface, convenient employing collar carries out radially spacing to the body of rod, after the relative bearing housing of the while body of rod is spacing, can not affect again the relative bearing housing of the body of rod around self axis rotation.
The periphery of above-mentioned ball-and-socket face has the copper wearing layer of a circle.To improve wear resistance and the seizure resistance between ball-and-socket face and the bearing housing outer circumferential face.
Because during oil hydraulic motor work, the oil duct bore is larger, behind the place, mating face of the bottom surface by entering connecting rod behind the oil duct and bearing housing, the pressure oil of high pressure can lift connecting rod the pressure oil of high pressure fast, and the leakage meeting of hydraulic oil increases greatly, affect the volumetric efficiency of oil hydraulic motor, for above-mentioned present situation, we are designed to shoulder hole with above-mentioned oil duct, are fixed with fixed block in the macropore section of oil duct bottom, have the damping hole that axially runs through on the fixed block, this damping hole communicates with the aperture section on oil duct top.High pressure oil can pass through damping hole, and high pressure oil can not enter again the bottom surface of connecting rod and the place, mating face of bearing housing fast after the damping hole damping simultaneously, and connecting rod can not be lifted, and guarantees the oil hydraulic motor smooth working.
Above-mentioned fixing piece is threaded in the macropore section of oil duct bottom.This mode can conveniently be installed to fixed block in the oil duct.
Compared with prior art, the utility model has the advantage of: the bottom end face of the body of rod is the ball-and-socket face of indent, and processing ball-and-socket face does not need special anchor clamps that connecting rod is positioned reprocessing, only need to adopt that anchor clamps just can position the ball-and-socket face that processes to it on the conventional lathe, easy to process, cost is low; Can make in addition between the bottom end face of connecting rod and the bearing housing and form sphere-contact, connecting rod is stressed evenly, the indefatigability fracture, reduce the maintenance cost of oil hydraulic motor, during oil hydraulic motor work, connecting rod also can be around the slow rotation of self axis, make the wearing and tearing of connecting rod also even, guarantee the oil hydraulic motor normal operation.
Description of drawings
Fig. 1 is the utility model embodiment's front view;
Fig. 2 is the utility model embodiment's plan view;
Fig. 3 is the utility model embodiment's sectional view;
Fig. 4 is the front view of existing connecting rod of hydraulic motor;
Fig. 5 is the plan view of existing connecting rod of hydraulic motor.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～3, be a preferred embodiment of the present utility model.
A kind of connecting rod of oil hydraulic motor comprises the body of rod 1, and the upper end of the body of rod 1 has ball head 2, and the shaft core position place of the body of rod 1 has the oil duct 3 that axially runs through, and the bottom end face of the body of rod 1 contacts with the bearing housing of oil hydraulic motor, more than is the conventional structure of connecting rod in the oil hydraulic motor.
Main improvement of the present utility model is: the bottom end face of the body of rod 1 is the ball-and-socket face 4 of indent, and the periphery of ball-and-socket face 4 has the copper wearing layer 7 of a circle.
The bottom of the body of rod 1 is overlooked under the state roundedly, and the periphery of the body of rod 1 bottom has the conical surface 5.
The bottom end face of the body of rod is the ball-and-socket face of indent, and processing ball-and-socket face does not need special anchor clamps that connecting rod is positioned reprocessing, only needs to adopt that anchor clamps just can position the ball-and-socket face that processes to it on the conventional lathe, and is easy to process, cost is low; Can make in addition between the bottom end face of connecting rod and the bearing housing and form sphere-contact, connecting rod is stressed evenly, the indefatigability fracture, reduce the maintenance cost of oil hydraulic motor, during oil hydraulic motor work, connecting rod also can be around the slow rotation of self axis, make the wearing and tearing of connecting rod also even, guarantee the oil hydraulic motor normal operation.
Claims (5)
1. the connecting rod of an oil hydraulic motor, comprise the body of rod (1), the upper end of the body of rod (1) has ball head (2), the shaft core position place of the body of rod (1) has the oil duct (3) that axially runs through, the bottom end face of the body of rod (1) contacts with the bearing housing of oil hydraulic motor, it is characterized in that: the bottom end face of the described body of rod (1) is the ball-and-socket face (4) of indent.
2. the connecting rod of oil hydraulic motor according to claim 1 is characterized in that: the periphery of described ball-and-socket face (4) has a circle copper wearing layer (7).
3. the connecting rod of oil hydraulic motor according to claim 1 is characterized in that: the bottom of the described body of rod (1) is overlooked under the state roundedly, and the periphery of the body of rod (1) bottom has the conical surface (5).
4. according to claim 1, the connecting rod of 2 or 3 described oil hydraulic motors, it is characterized in that: described oil duct (3) is shoulder hole, be fixed with fixed block (6) in the macropore section of oil duct (3) bottom, have the damping hole (61) that axially runs through on the fixed block (6), this damping hole (61) communicates with the aperture section on oil duct (3) top.
5. the connecting rod of oil hydraulic motor according to claim 4, it is characterized in that: described fixed block (6) is threaded in the macropore section of oil duct (3) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398869 CN202833600U (en) | 2012-08-13 | 2012-08-13 | Connecting rod of hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398869 CN202833600U (en) | 2012-08-13 | 2012-08-13 | Connecting rod of hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833600U true CN202833600U (en) | 2013-03-27 |
Family
ID=47945313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220398869 Expired - Fee Related CN202833600U (en) | 2012-08-13 | 2012-08-13 | Connecting rod of hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917153A (en) * | 2014-01-28 | 2016-08-31 | 博格华纳公司 | Orifice flow valve |
-
2012
- 2012-08-13 CN CN 201220398869 patent/CN202833600U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917153A (en) * | 2014-01-28 | 2016-08-31 | 博格华纳公司 | Orifice flow valve |
| US10428913B2 (en) | 2014-01-28 | 2019-10-01 | Borgwarner Inc. | Orifice flow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO PKL HYDRAULIC MACHINERY CO., LTD. Free format text: FORMER NAME: TAIZHOU PKL HYDRAULIC MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317000 Harbor Industrial Zone, Linhai two water industrial zone, Zhejiang Patentee after: NINGBO PKL HYDRAULIC MACHINERY Co.,Ltd. Address before: 317000 Harbor Industrial Zone, Linhai two water industrial zone, Zhejiang Patentee before: Taizhou PKL Hydraulic Machinery Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Jiaochuan Zhenhai District 315200 in Zhejiang province Ningbo City Street Green Road No. 268 Patentee after: NINGBO PKL HYDRAULIC MACHINERY Co.,Ltd. Address before: 317000 Harbor Industrial Zone, Linhai two water industrial zone, Zhejiang Patentee before: NINGBO PKL HYDRAULIC MACHINERY Co.,Ltd. |
|
| 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: 20130327 Termination date: 20210813 |