CN111997891B - Inserting mechanism of oil suction pipe of hydraulic pump - Google Patents
Inserting mechanism of oil suction pipe of hydraulic pump Download PDFInfo
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- CN111997891B CN111997891B CN202010948769.1A CN202010948769A CN111997891B CN 111997891 B CN111997891 B CN 111997891B CN 202010948769 A CN202010948769 A CN 202010948769A CN 111997891 B CN111997891 B CN 111997891B
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- suction pipe
- oil suction
- elastic sheet
- hole
- jack
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a splicing mechanism of an oil suction pipe of a hydraulic pump, which comprises a ferrule mechanism, wherein one end of a pump body is provided with a jack for assembling the oil suction pipe, the inner wall of the jack is provided with a retainer ring and an O-shaped ring which are contacted with the outer wall of the oil suction pipe, the outer ring and the inner ring of the retainer ring are respectively provided with an outer convex tooth and an inner convex tooth in an annular array, the top ends of the outer convex tooth and the inner convex tooth are respectively contacted with the inner wall of the jack and the outer wall of the oil suction pipe, the extension directions of the outer convex tooth and the inner convex tooth and the direction of the oil suction pipe which is axial and deviates from the pump body respectively form an acute included angle and an obtuse included angle, and the inner convex tooth extends; the elastic sheet mechanism comprises a first elastic sheet and a second elastic sheet, one end of the first elastic sheet and one end of the second elastic sheet are fixed with the pump body through bolts together, the second elastic sheet is attached to the surface of the pump body where the jack port is located, the first elastic sheet is provided with a tilting section which forms an acute angle with the second elastic sheet, and the tilting section and the second elastic sheet are respectively provided with a first through hole and a second through hole through which the oil suction pipe passes. The oil suction pipe is limited in one direction by the oil suction pipe limiting device, so that the oil suction pipe is prevented from being easily loosened.
Description
Technical Field
The invention relates to the field of oil pumps, in particular to a splicing mechanism of an oil suction pipe of a hydraulic pump.
Background
Some hydraulic pumps are connected with an oil inlet pipe and an oil return pipe, and the hydraulic pumps are matched with an oil tank to form a compact hydraulic pump station. But the long-term use will guarantee that the junction of advancing oil pipe does not become flexible, does not reveal, could prolong the maintenance cycle of hydraulic pump like this.
Disclosure of Invention
The invention aims to provide an insertion mechanism of an oil suction pipe of a hydraulic pump, which is used for limiting the oil suction pipe in a one-way manner and preventing the oil suction pipe from being easily loosened.
In order to solve the above problems, the present invention provides a plugging mechanism for an oil suction pipe of a hydraulic pump, and to achieve the above object, the technical solution adopted by the present invention for solving the technical problems is as follows:
the utility model provides a grafting mechanism of hydraulic pump oil suction pipe, includes: the oil suction pipe comprises a ring sleeving mechanism, wherein one end of a pump body is provided with a jack for assembling an oil suction pipe, the inner wall of the jack is provided with a clamping ring and an O-shaped ring which are contacted with the outer wall of the oil suction pipe, the outer ring and the inner ring of the clamping ring are respectively provided with an outer convex tooth and an inner convex tooth in an annular array manner, the top ends of the outer convex tooth and the inner convex tooth are respectively contacted with the inner wall of the jack and the outer wall of the oil suction pipe, the extending direction of the outer convex tooth forms an acute included angle with the axial direction of the oil suction pipe and the direction deviating from the pump body, and the extending direction of the inner convex tooth forms an obtuse included angle with the axial direction of the oil suction pipe and the direction deviating from the pump body; the elastic sheet mechanism comprises a first elastic sheet and a second elastic sheet, one end of the first elastic sheet and one end of the second elastic sheet are fixed with the pump body through bolts together, the second elastic sheet is attached to the surface of the pump body where the jack port is located, the first elastic sheet is provided with a tilting section which forms an acute angle with the second elastic sheet, the tilting section and the second elastic sheet are respectively provided with a first through hole and a second through hole through which the oil suction pipe passes, and the edge of the first through hole is in contact with the outer wall of the oil suction pipe.
The beneficial effect of adopting above-mentioned technical scheme is: the tightness degree of the oil suction pipe after being connected with the pump body is strengthened. The resistance required by drawing the oil suction pipe is increased by mainly utilizing two mechanisms, namely the elastic sheet mechanism and the ferrule mechanism, but the difficulty and the resistance when the oil suction pipe is assembled with an oil pump are not increased, and the one-way limiting is realized. The oil suction pipe can be prevented from being easily pulled out, and the integration degree of the lower oil suction pipe and the pump body can be ensured after long-term use. The O-shaped ring plays a role in protecting and sealing connection of the root part of the suction pipe. The collar can realize little resistance of the collar when the oil suction pipe is finely adjusted towards the direction close to the pump body by utilizing the outward convex teeth and the inward convex teeth which face each other; when the oil suction pipe is slightly adjusted in the direction departing from the pump body, the outer convex teeth and the inner convex teeth are easily embedded into the surface of the insertion hole and the surface of the oil suction pipe, so that the resistance is increased, and the oil suction pipe is prevented from being easily pulled out. The second elastic sheet plays a role in assisting in fixing the oil suction pipe. The oblique tilting section of the first elastic sheet also has the effect of preventing the oil suction pipe from being easily pulled out without influencing the advance of the oil suction pipe. Once the oil suction pipe tends to be pulled out, the outer wall of the oil suction pipe drives the first elastic sheet to move outwards properly, and the included angle between the tilting section and the second elastic sheet is increased. Due to the fact that the included angle is enlarged, the projection area of the first through hole in the axial direction of the oil suction pipe can be reduced, the first through hole and the outer wall of the oil suction pipe can be further embedded and clamped, and the effect of preventing the oil suction pipe from being pulled out is achieved. When the force for pulling out the oil suction pipe disappears, the first elastic sheet can be restored to the initial state due to the self elasticity.
As a further improvement of the invention, the second elastic sheet is arranged between the first elastic sheet and the pump body, the first elastic sheet is also provided with a straight section which is connected with the tilting section in an obtuse angle, the bolt passes through the straight section, and the axis of the bolt is parallel to the axis of the jack.
The beneficial effect of adopting above-mentioned technical scheme is: the tilting section and the straight section of the first elastic sheet are formed by bending a flat plate piece, and the straight section is convenient to be attached and fixed with the second elastic sheet. The bolt is located one side, and the first elastic sheet self constitutes cantilever structure of being convenient for.
As a further improvement of the invention, the edge of the second through hole is circular in outline, the axis of the second through hole is coincident with the axis of the jack, and the inner diameter of the second through hole is smaller than the inner diameter at the port of the jack.
The beneficial effect of adopting above-mentioned technical scheme is: the inner diameter of the second through hole is smaller than that of the port of the jack, so that the oil suction pipe is limited.
As a further improvement of the invention, the outline of the edge of the first through hole is oval, and when the first through hole is contacted with the outer wall of the oil suction pipe, the projection of the outline of the edge of the first through hole is circular along the axial visual angle of the oil suction pipe.
The beneficial effect of adopting above-mentioned technical scheme is: the ellipse shape can change the self-projected outline into a circular shape at a certain oblique angle. The first through hole can be in more contact with the outer wall of the oil suction pipe, and when the oil suction pipe tends to be pulled out, more resistance can be applied by the first through hole.
As a further improvement of the invention, when the elastic sheet mechanism is not in contact with the pump body and the oil suction pipe and is not subjected to other external forces except gravity, the elastic sheet mechanism only has a first elastic sheet, a second elastic sheet and a bolt which are assembled with each other, and the axis of the bolt is parallel to the axis of the jack, the included angle between the tilting section and the plane of the port of the jack is larger than the included angle between the tilting section and the plane of the port of the jack when the elastic sheet mechanism is in contact with the pump body and the oil suction pipe; meanwhile, the plane where the second elastic sheet is located and the plane where the jack port is located form an included angle, and the vertical distance between the part of the second elastic sheet and the plane where the jack port is located is gradually reduced along the direction departing from the bolt.
The beneficial effect of adopting above-mentioned technical scheme is: although the second shrapnel is attached to the plane of the jack port, the elastic potential energy of the second shrapnel is overcome by the extrusion of the pump body, and the second shrapnel always has a force for pressing down the pump body, so that the second shrapnel is tightly attached to the pump body. When the first elastic sheet is free from external force, the first elastic sheet is higher in tilting degree and is located at the limit position. When the first elastic sheet contacts with the oil suction pipe, the first elastic sheet is pressed to a certain tilting degree, so that the first through hole is ensured to be in contact with the outer wall of the oil suction pipe, and the first elastic sheet can timely respond to the action of the oil suction pipe.
As a further improvement of the invention, when the first through hole is in contact with the outer wall of the oil suction pipe, the included angle between the tilting section and the second elastic sheet ranges from 15 degrees to 21 degrees.
The beneficial effect of adopting above-mentioned technical scheme is: the embedding effect and the resistance between the first elastic sheet and the oil suction pipe brought by the angle selection range are better.
As a further improvement of the invention, the insertion hole is sequentially provided with a first hole section, a second hole section and a third hole section with gradually increased inner diameters from the bottom of the insertion hole to the direction of the port, the respective axes of the first hole section, the second hole section and the third hole section are superposed, a second step surface is arranged at the junction of the first hole section and the second hole section, a first step surface is arranged at the junction of the second hole section and the third hole section, and the clamping ring and the O-shaped ring are respectively contacted with the first step surface and the second step surface.
The beneficial effect of adopting above-mentioned technical scheme is: the first hole section, the second hole section and the third hole section naturally bring a first step surface and a second step surface, so that a fixed position is provided for the clamping ring and the O-shaped ring, and the clamping ring and the O-shaped ring are prevented from interfering with each other.
As a further improvement of the invention, the O-shaped ring is made of rubber, the clamping ring, the first elastic sheet and the second elastic sheet are made of metal, the clamping ring is provided with annular sheets which are connected with the convex teeth and the convex teeth together, the plane of the annular sheets is vertical to the axis of the clamping ring, and the projection of the clamping ring along the axial direction of the clamping ring is only overlapped by the convex teeth and the first step surface.
The beneficial effect of adopting above-mentioned technical scheme is: annular piece self with outer dogtooth, interior dogtooth all is obtuse angle contained angle, when inhaling the trend that oil pipe has the extraction, outer dogtooth, interior dogtooth can suitably deform when providing the resistance, because outer dogtooth, interior dogtooth is every also all cantilever structure, the deformation in-process, outer dogtooth, interior dogtooth can the grow with the obtuse angle contained angle of annular piece, to the direction change that is close to the straight angle, the distance between outer dogtooth and interior dogtooth top separately can the grow, further promote outer dogtooth, the embedding effect of interior dogtooth, continuously increase the resistance.
As a further improvement of the invention, the number of the outer convex teeth and the inner convex teeth is equal, and the outer convex teeth and the inner convex teeth are alternately arranged at intervals along the circumferential direction of the clamping ring.
The beneficial effect of adopting above-mentioned technical scheme is: the stress is relatively even, and the rand is difficult for squinting.
As a still further improvement of the present invention, the outer wall of the oil suction pipe is in interference fit with the first hole section.
The beneficial effect of adopting above-mentioned technical scheme is: the oil suction pipe and the oil pump are in tight fit at first, so that the firmness and the sealing property after connection are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of one embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of one embodiment of the present invention at A;
FIG. 3 is a perspective view of one embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of one embodiment of the present invention at B;
FIG. 5 is a front view of one embodiment of the present invention;
FIG. 6 is a right side view of one embodiment of the present invention;
FIG. 7 is a cross-sectional view C-C of one embodiment of the present invention;
FIG. 8 is an enlarged partial view at D of one embodiment of the present invention;
FIG. 9 is a perspective view of one embodiment of the present invention;
FIG. 10 is an enlarged view of a portion of one embodiment of the present invention at E;
FIG. 11 is a perspective view of a collar, O-ring, of one embodiment of the present invention;
fig. 12 is a perspective view of a collar and an O-ring according to an embodiment of the present invention.
1-an oil suction pipe; 2-an oil return pipe; 3-a pump body; 4-a bolt; 5-a first elastic sheet; 6-a second elastic sheet; 7-a collar; 8-O-shaped rings; 9-a first via; 10-a second via; 11-a tilting section; 12-a straight section; 13-a jack; 14-a first step surface; 15-a second step surface; 16-a ring-shaped piece; 17-convex teeth; 18-inner convex teeth; 19-a first bore section; 20-a second bore section; 21-third hole section.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
in order to achieve the purpose of the invention, the insertion mechanism of the oil suction pipe of the hydraulic pump comprises: the oil suction pipe structure comprises a ring mechanism, wherein one end of a pump body 3 is provided with a jack 13 for assembling an oil suction pipe 1, the inner wall of the jack 13 is provided with a clamping ring 7 and an O-shaped ring 8 which are contacted with the outer wall of the oil suction pipe 1, the outer ring and the inner ring of the clamping ring 7 are respectively provided with an outer convex tooth 17 and an inner convex tooth 18 in an annular array, the top ends of the outer convex tooth 17 and the inner convex tooth 18 are respectively contacted with the inner wall of the jack 13 and the outer wall of the oil suction pipe 1, the extension direction of the outer convex tooth 17 forms an acute included angle with the axial direction of the oil suction pipe 1 and the direction deviating from the pump body 3, and the extension direction of the inner convex tooth 18 forms an obtuse included angle with the axial direction of the oil suction pipe 1 and the direction deviating from the pump body 3; the elastic sheet mechanism comprises a first elastic sheet 5 and a second elastic sheet 6, wherein one end of the first elastic sheet 5 and one end of the second elastic sheet 6 are fixed with the pump body 3 through a bolt 4, the second elastic sheet 6 is attached to the surface of the pump body 3 where the port of the jack 13 is located, the first elastic sheet 5 is provided with a tilting section 11 which forms an acute angle with the second elastic sheet 6, the tilting section 11 and the second elastic sheet 6 are respectively provided with a first through hole 9 and a second through hole 10, the oil suction pipe 1 penetrates through the tilting section, and the edge of the first through hole 9 is in contact with the outer wall of the oil suction pipe 1.
An oil return pipe 2 parallel to the oil suction pipe 1 is also arranged on the pump body 3 in the same direction. The cross section of the outer wall of the oil suction pipe 1 is circular.
The beneficial effect of adopting above-mentioned technical scheme is: the tightness degree of the oil suction pipe after being connected with the pump body is strengthened. The resistance required by drawing the oil suction pipe is increased by mainly utilizing two mechanisms, namely the elastic sheet mechanism and the ferrule mechanism, but the difficulty and the resistance when the oil suction pipe is assembled with the oil pump are not increased, and the one-way limiting is realized. The oil suction pipe can be prevented from being easily pulled out, and the integration degree of the lower oil suction pipe and the pump body can be ensured after long-term use. The O-shaped ring plays a role in protecting and sealing connection of the root part of the suction pipe. The collar can realize little resistance of the collar when the oil suction pipe is finely adjusted towards the direction close to the pump body by utilizing the outward convex teeth and the inward convex teeth which face each other; when the oil suction pipe is slightly adjusted in the direction departing from the pump body, the outer convex teeth and the inner convex teeth are easily embedded into the surface of the insertion hole and the surface of the oil suction pipe, so that the resistance is increased, and the oil suction pipe is prevented from being easily pulled out. The second elastic sheet plays a role in assisting in fixing the oil suction pipe. The oblique tilting section of the first elastic sheet also has the effect of preventing the oil suction pipe from being easily pulled out without influencing the advance of the oil suction pipe. Once the oil suction pipe tends to be pulled out, the outer wall of the oil suction pipe drives the first elastic sheet to move outwards properly, and the included angle between the tilting section and the second elastic sheet is increased. Due to the fact that the included angle is enlarged, the projection area of the first through hole in the axial direction of the oil suction pipe can be reduced, the first through hole and the outer wall of the oil suction pipe can be further embedded and clamped, and the effect of preventing the oil suction pipe from being pulled out is achieved. When the force for pulling out the oil suction pipe disappears, the first elastic sheet can be restored to the initial state due to the self elasticity.
In other embodiments of the present invention, the second elastic sheet 6 is disposed between the first elastic sheet 5 and the pump body 3, the first elastic sheet 5 further has a straight section 12 connected to the tilted section 11 at an obtuse angle, the bolt 4 passes through the straight section 12, and the axis of the bolt 4 is parallel to the axis of the insertion hole 13.
The beneficial effect of adopting above-mentioned technical scheme is: the tilting section and the straight section of the first elastic sheet are formed by bending a flat plate piece, and the straight section is convenient to be attached and fixed with the second elastic sheet. The bolt is located one side, and the first elastic sheet self constitutes cantilever structure of being convenient for.
In other embodiments of the present invention, the edge of the second through hole 10 has a circular profile, the axis of the second through hole 10 coincides with the axis of the insertion hole 13, and the inner diameter of the second through hole 10 is smaller than the inner diameter at the port of the insertion hole 13.
The beneficial effect of adopting above-mentioned technical scheme is: the inner diameter of the second through hole is smaller than that of the port of the jack, so that the oil suction pipe is limited.
In other embodiments of the present invention, the edge profile of the first through hole 9 is oval, and when the first through hole 9 contacts with the outer wall of the oil suction pipe 1, the edge profile of the first through hole 9 is projected to be circular along the axial view of the oil suction pipe 1.
The beneficial effect of adopting above-mentioned technical scheme is: the ellipse shape can change the self-projected outline into a circular shape at a certain oblique angle. The first through hole can be in more contact with the outer wall of the oil suction pipe, and when the oil suction pipe tends to be pulled out, more resistance can be applied by the first through hole.
In other embodiments of the present invention, when the elastic sheet mechanism is not in contact with the pump body 3 and the oil suction pipe 1 and is not subjected to other external forces except gravity, the elastic sheet mechanism only has the first elastic sheet 5, the second elastic sheet 6 and the bolt 4 which are assembled with each other, and the axis of the bolt 4 is parallel to the axis of the insertion hole 13, the included angle between the tilted section 11 and the plane of the port of the insertion hole 13 is larger than the included angle between the tilted section 11 and the plane of the port of the insertion hole 13 when the elastic sheet mechanism is in contact with the pump body 3 and the oil suction pipe 1; meanwhile, the plane of the second elastic sheet 6 and the plane of the port of the jack 13 form an included angle, and the vertical distance between the local part of the second elastic sheet 6 and the plane of the port of the jack 13 is gradually reduced along the direction departing from the bolt 4.
The beneficial effect of adopting above-mentioned technical scheme is: although the second elastic sheet is attached to the plane where the jack port is located, the second elastic sheet is extruded by the pump body to overcome the elastic potential energy of the second elastic sheet, and the second elastic sheet always has a force for pressing down the pump body, so that the second elastic sheet is ensured to be closely attached to the pump body. When the first elastic sheet is free from external force, the first elastic sheet is higher in tilting degree and is located at the limit position. When the first elastic sheet contacts with the oil suction pipe, the first elastic sheet is pressed down to a certain tilting degree, so that the first through hole is ensured to be in contact with the outer wall of the oil suction pipe, and the first elastic sheet can timely respond to the action of the oil suction pipe.
In other embodiments of the present invention, when the first through hole 9 contacts with the outer wall of the oil suction pipe 1, the included angle between the tilted section 11 and the second elastic sheet 6 ranges from 15 ° to 21 °.
The beneficial effect of adopting above-mentioned technical scheme is: the angle selection range brings about that the embedding effect and the resistance of the first elastic sheet and the oil suction pipe are better.
In another embodiment of the present invention, the insertion hole 13 includes a first hole section 19, a second hole section 20, and a third hole section 21 having an inner diameter gradually increasing from the bottom thereof to the port, the respective axes of the first hole section 19, the second hole section 20, and the third hole section 21 are overlapped, a second step surface 15 is provided at the boundary between the first hole section 19 and the second hole section 20, a first step surface 14 is provided at the boundary between the second hole section 20 and the third hole section 21, and the collar 7 and the O-ring 8 are in contact with the first step surface 14 and the second step surface 15, respectively.
The beneficial effect of adopting above-mentioned technical scheme is: first hole section, second hole section, third hole section bring first step face, second step face naturally, for rand, O type circle provide fixed position, prevent rand, O type circle mutual interference.
In other embodiments of the present invention, the O-ring 8 is made of rubber, the collar 7, the first elastic sheet 5 and the second elastic sheet 6 are made of metal, the collar 7 is provided with annular sheets 16 connected with the outer convex teeth 17 and the inner convex teeth 18 together, a plane of the annular sheets 16 is perpendicular to an axis of the collar 7, and a projection of the collar 7 along the axis of the collar 7 only overlaps the outer convex teeth 17 with the first step surface 14.
The beneficial effect of adopting above-mentioned technical scheme is: annular piece self with outer dogtooth, interior dogtooth all is obtuse angle contained angle, when inhaling the trend that oil pipe has the extraction, outer dogtooth, interior dogtooth can suitably deform when providing the resistance, because outer dogtooth, interior dogtooth is every also all cantilever structure, the deformation in-process, outer dogtooth, interior dogtooth can the grow with the obtuse angle contained angle of annular piece, to the direction change that is close to the straight angle, distance between the top can the grow separately with interior dogtooth, further promote outer dogtooth, the embedding effect of interior dogtooth, continuously increase the resistance.
In other embodiments of the present invention, the number of the outer convex teeth 17 and the inner convex teeth 18 is equal, and the outer convex teeth 17 and the inner convex teeth 18 are alternately arranged at intervals along the circumferential direction of the collar 7.
The beneficial effect of adopting above-mentioned technical scheme is: the stress is relatively even, and the rand is difficult for squinting.
In other embodiments of the invention, the outer wall of the suction pipe 1 is interference fitted with the first bore section 19.
The beneficial effect of adopting above-mentioned technical scheme is: the oil suction pipe and the oil pump are in tight fit at first, so that the firmness and the sealing property after connection are improved.
In order to facilitate the structure, fig. 3 hides the oil suction pipe 1, and fig. 9 hides the oil suction pipe 1, the first elastic sheet 5 and the second elastic sheet 6.
The first elastic sheet 5 is composed of a tilting section 11 and a straight section 12, and the tilting section 11 and the straight section 12 are formed by bending plane plate pieces.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (2)
1. The utility model provides a grafting mechanism of hydraulic pump oil suction pipe which characterized in that includes:
the oil suction pipe comprises a ring sleeving mechanism, wherein one end of a pump body is provided with a jack for assembling an oil suction pipe, the inner wall of the jack is provided with a clamping ring and an O-shaped ring which are contacted with the outer wall of the oil suction pipe, the outer ring and the inner ring of the clamping ring are respectively provided with an outer convex tooth and an inner convex tooth in an annular array mode, the top ends of the outer convex tooth and the inner convex tooth are respectively contacted with the inner wall of the jack and the outer wall of the oil suction pipe, the extending direction of the outer convex tooth and the axial direction of the oil suction pipe and the direction deviating from the pump body form an acute included angle, and the extending direction of the inner convex tooth and the axial direction of the oil suction pipe and the direction deviating from the pump body form an obtuse included angle;
the elastic piece mechanism comprises a first elastic piece and a second elastic piece, one end of the first elastic piece and one end of the second elastic piece are fixed with the pump body together through bolts, the second elastic piece is attached to the surface of the pump body where the jack port is located, the first elastic piece is provided with a tilting section which forms an acute included angle with the second elastic piece, the tilting section and the second elastic piece are respectively provided with a first through hole and a second through hole through which the oil suction pipe passes, and the edge of the first through hole is in contact with the outer wall of the oil suction pipe;
the second elastic sheet is arranged between the first elastic sheet and the pump body, the first elastic sheet is further provided with a straight section which is connected with the tilting section in an obtuse angle, the bolt penetrates through the straight section, and the axis of the bolt is parallel to the axis of the jack;
the edge contour of the first through hole is oval, and when the first through hole is contacted with the outer wall of the oil suction pipe, the projection of the edge contour of the first through hole is circular along the axial visual angle of the oil suction pipe;
when the elastic sheet mechanism is not in contact with the pump body and the oil suction pipe and is not subjected to other external forces except gravity, the elastic sheet mechanism only comprises a first elastic sheet, a second elastic sheet and a bolt which are assembled with each other, and the axis of the bolt is parallel to the axis of the jack, the included angle between the tilting section and the plane of the port of the jack is larger than the included angle between the tilting section and the plane of the port of the jack when the elastic sheet mechanism is in contact with the pump body and the oil suction pipe; meanwhile, the plane of the second elastic sheet and the plane of the jack port form an included angle, and the vertical distance between the part of the second elastic sheet and the plane of the jack port is gradually reduced along the direction departing from the bolt;
the edge contour of the second through hole is circular, the axis of the second through hole is coincident with the axis of the jack, and the inner diameter of the second through hole is smaller than that of the jack port;
when the first through hole is contacted with the outer wall of the oil suction pipe, the included angle between the tilting section and the second elastic sheet ranges from 15 degrees to 21 degrees;
the jack is sequentially provided with a first hole section, a second hole section and a third hole section with gradually increased inner diameters from the bottom of the jack to the direction of a port, the respective axes of the first hole section, the second hole section and the third hole section are overlapped, a second step surface is arranged at the junction of the first hole section and the second hole section, a first step surface is arranged at the junction of the second hole section and the third hole section, and the clamping ring and the O-shaped ring are respectively contacted with the first step surface and the second step surface;
the O-shaped ring is made of rubber, the clamping ring, the first elastic sheet and the second elastic sheet are made of metal, the clamping ring is provided with annular sheets which are connected with the outer convex teeth and the inner convex teeth together, the plane of each annular sheet is perpendicular to the axis of the clamping ring, and only the outer convex teeth are overlapped with the first step surface of the clamping ring along the axial projection of the clamping ring;
the number of the outer convex teeth and the number of the inner convex teeth are equal, and the outer convex teeth and the inner convex teeth are alternately arranged at intervals along the circumferential direction of the clamping ring.
2. The insertion mechanism of the oil suction pipe of the hydraulic pump according to claim 1, wherein: the outer wall of the oil suction pipe is in interference fit with the first hole section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948769.1A CN111997891B (en) | 2020-09-10 | 2020-09-10 | Inserting mechanism of oil suction pipe of hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948769.1A CN111997891B (en) | 2020-09-10 | 2020-09-10 | Inserting mechanism of oil suction pipe of hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111997891A CN111997891A (en) | 2020-11-27 |
| CN111997891B true CN111997891B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010948769.1A Active CN111997891B (en) | 2020-09-10 | 2020-09-10 | Inserting mechanism of oil suction pipe of hydraulic pump |
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| CN (1) | CN111997891B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113339257B (en) * | 2021-07-05 | 2023-01-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil return assembly, scroll compressor and air conditioning system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2145104T3 (en) * | 1994-09-14 | 2000-07-01 | Guest John D | CLAMP RING. |
| DE19944600A1 (en) * | 1999-09-16 | 2001-04-05 | Fte Automotive Gmbh | Bracket for a pressure line |
| US10605394B2 (en) * | 2016-05-16 | 2020-03-31 | Victaulic Company | Fitting having tabbed retainer and observation apertures |
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2020
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