CN214171924U - Flow-adjustable oil pump and adjusting mechanism - Google Patents
Flow-adjustable oil pump and adjusting mechanism Download PDFInfo
- Publication number
- CN214171924U CN214171924U CN202023126294.2U CN202023126294U CN214171924U CN 214171924 U CN214171924 U CN 214171924U CN 202023126294 U CN202023126294 U CN 202023126294U CN 214171924 U CN214171924 U CN 214171924U
- Authority
- CN
- China
- Prior art keywords
- adjusting
- piston
- rod
- cam
- cavity
- 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.)
- Active
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model belongs to the technical field of the oil pump, especially, relate to an adjustable flow oil pump and adjustment mechanism, adjustable flow oil pump includes: the piston comprises a shell, wherein a piston cavity, an adjusting mounting hole and a driving mounting cavity are arranged in the shell; sealing parts are arranged at the openings at the two ends of the piston cavity, and a driving clearance hole is formed between the driving installation cavity and the piston cavity; the piston rod assembly is arranged in the piston cavity and comprises a piston, a cam and a compression elastic piece, the end surface of the cam is provided with a cam surface, the end part of the piston extends to form an adjusting limiting part, and the piston is provided with a driving connecting part; the adjusting rod is arranged in the adjusting mounting hole, the end part of the adjusting rod extending into the piston cavity extends to form an adjusting part, and the adjusting part and the adjusting rod are eccentrically arranged. Through the above-mentioned part setting to the stroke size of piston rod subassembly is controlled with the butt condition control piston rod subassembly of regulating part to the regulation piston rod subassembly, changes the size of piston cavity, thereby the oil output of control lubricating oil satisfies the difference and reaches service condition, avoids the waste of resource.
Description
Technical Field
The utility model belongs to the technical field of the oil pump, especially, relate to an adjustable flow oil pump and adjustment mechanism.
Background
The oil pump for pass through the negative pressure with lubricating oil and convey on each part of equipment, cover the surface at each part, reduce friction under the effect of lubricating oil when rotation each other between the part, avoid producing a large amount of heats under the friction between the part, and when unable timely carrying out the heat extraction, the life of each spare part is influenced seriously, consequently all sets up lubricating system on the general equipment. The output of the lubricating oil of the saw chain lubricating system is realized through the oil pump in the prior art, and the lubricating oil output of the saw chain lubricating system realized through the oil pump in the prior art has the technical problem that the output oil quantity can not be adjusted according to different use conditions of the chain saw, so that the lubricating oil is wasted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adjustable flow oil pump aims at solving the oil pump among the prior art and can not regulate and control, the technical problem of resource-wasting.
In order to achieve the above object, an embodiment of the present invention provides an adjustable flow oil pump, including:
the piston type air conditioner comprises a shell, wherein a piston cavity, an adjusting mounting hole and a driving mounting cavity are formed in the shell; the adjusting mounting hole is positioned at one end of the piston cavity, the other end of the piston cavity is oppositely provided with an oil inlet joint and an oil outlet joint, the mouth parts at two ends of the piston cavity are provided with sealing parts, and the driving mounting cavity and the piston cavity are provided with driving clearance holes;
the piston rod assembly is arranged in the piston cavity and comprises a piston, a cam and a compression elastic piece, the cam is arranged at one end of the piston, a cam surface is arranged on the end surface of the cam, an adjusting limiting part extends from the end part of the piston, the adjusting limiting part is higher than the lowest point of the cam surface, a driving connecting part is arranged on the piston and is used for being connected with a driving piece arranged in the driving installation cavity, and the compression elastic piece is arranged in the piston cavity and is used for extruding the piston to reset;
the adjusting rod is arranged in the adjusting mounting hole, one end of the adjusting rod extends into the piston cavity, the compression elastic piece pushes and presses the cam surface of the cam to be abutted against the outer edge of the adjusting rod, an adjusting part extends from the end part of the adjusting rod extending into the piston cavity and is used for limiting the adjusting limiting part, and the adjusting part and the adjusting rod are eccentrically arranged;
the driving piece drives the piston to rotate, the cam surface is in contact with the adjusting rod, when the piston reciprocates in the piston cavity, the highest point of the cam surface is abutted against the outer edge of the adjusting rod when the piston retreats, and the adjusting limiting part is abutted against the adjusting part when the piston advances.
Preferably, a rotary damping piece is arranged in the adjusting mounting hole, and the adjusting rod penetrates through the rotary damping piece.
Preferably, the rotary damper is a rubber ring.
Preferably, the end of the adjusting lever is provided with a rotating groove for rotating the adjusting lever.
Preferably, the end of the adjusting part is provided with a supporting part penetrating through the adjusting mounting hole, the supporting part is overlapped with the axis of the adjusting rod, and the shaft diameter of the supporting part is smaller than that of the adjusting part.
Preferably, the end of the supporting part is further provided with a positioning part extending out of the adjusting mounting hole, the shaft diameter of the positioning part is larger than that of the supporting part, the positioning part is provided with a pin hole, a limiting pin penetrates through the pin hole, and the limiting pin is used for limiting the adjusting angle of the adjusting rod.
Preferably, the cam is sleeved on the adjusting limiting part.
Preferably, the end face of the cam is further provided with a clearance groove for clearance of the regulation limiting part and the regulation part.
Preferably, the cam is made of hard glue or brass.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the adjustable flow oil pump have one of following technological effect at least:
the flow-adjustable oil pump in the utility model comprises a shell, an adjusting rod and a piston rod component, the piston rod component is assembled in a piston cavity axially arranged in the shell during assembly, the adjusting rod is movably arranged in an adjusting mounting hole, one end of a piston of the piston rod component is positioned at one end of an oil inlet joint and an oil outlet joint of the shell, a cavity is formed by the flat side of the piston and the inner space of the piston cavity, lubricating oil is extruded into the cavity under the action of negative pressure when the flat side rotates to one side of the oil inlet joint, the piston rod component rotates to drive the lubricating oil in the cavity to rotate together, the lubricating oil in the cavity is extruded when the oil outlet joint is rotated to one side, the piston rod component continues to rotate to repeat the operation, a cam at the other side of the piston rod component is abutted against the adjusting rod, and an adjusting limiting part at the middle position of the cam is rotated to abut against the adjusting part of the adjusting rod, after adjusting the pole and rotating certain angle, adjust the regulation portion on the pole and adjust spacing portion contact, and promote and adjust spacing portion and remove, lead to the piston rod assembly to rotate the least significant end of in-process cam and can't contact the regulation pole, the stroke of whole piston rod assembly shortens, the space that leads to the other end is diminishing promoting whole piston rod assembly to remove, thereby the lubricated oil mass who gushes in diminishes, rotate the opposite side when adjusting the pole, adjust spacing portion and remove to the regulation portion under compression elastic component's extrusion, continue the butt on the regulation portion, thereby the stroke of whole piston rod assembly lengthens, make the piston rod assembly rotate the space grow of in-process piston end, the lubricating oil mass grow of gushing in. Through the above-mentioned part setting to the stroke size of piston rod subassembly is controlled with the butt condition control piston rod subassembly of regulating part to the regulation piston rod subassembly, changes the size of piston cavity, thereby the oil output of control lubricating oil satisfies the difference and reaches service condition, avoids the waste of resource.
The other technical scheme of the utility model is that the adjusting mechanism comprises a shell, a piston rod, a spring, a cam, an adjusting rod and a driving piece; a guide hole, an adjusting mounting hole and a driving mounting hole are formed in the shell; the adjusting mounting hole is positioned at one end of the guide hole, and a driving clearance hole is formed between the driving mounting hole and the guide hole; the piston rod is arranged in the guide hole, the cam is fixedly arranged at one end of the piston rod, an adjusting limit part extends from the end part of the piston rod, the adjusting limit part is higher than the lowest point of the cam surface, the spring is arranged in the guide hole, used for extruding the piston rod to reset, a driving connecting part is arranged on the piston rod and used for being connected with a driving piece arranged in the driving mounting hole, the adjusting rod is arranged in the adjusting mounting hole, one end of the adjusting rod extends into the guide hole, the spring pushes the cam surface of the cam to abut against the outer edge of the adjusting rod, the end part of the adjusting rod extending into the guide hole extends to form an adjusting part, the adjusting part and the adjusting rod are eccentrically arranged, and the stroke of the piston rod in reciprocating motion is changed by adjusting the eccentric position of the adjusting part.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the adjustment mechanism have one of following technological effect at least:
the adjusting structure in the utility model comprises a shell, a piston rod, a spring, a cam, an adjusting rod and a driving piece, wherein the piston rod is arranged in a guide hole arranged in the shell during assembly, the cam is fixedly arranged at one end of the piston rod, an adjusting limiting part is arranged at the end, the adjusting limiting part is higher than the lowest point of the cam surface and is used for being abutted against an adjusting part arranged on the adjusting rod, the moving stroke of the piston rod is limited by the adjusting part, the adjusting part and the adjusting rod are eccentrically arranged, the thick surface and the thin surface at one side of the adjusting part on the axis of the adjusting rod are realized, the abutted surface between the adjusting part and the adjusting limiting part is changed by rotating the adjusting rod so as to change the maximum stroke which can be moved when the abutting between the adjusting limiting part and the adjusting part is adjusted, so that the adjusting mechanism also has the function of adjusting the flow oil pump to change the oil output of lubricating oil, and meets the lubricating oil demand of the adjusting mechanism under different use conditions, the waste of resources is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is an exploded view of an adjustable flow oil pump according to an embodiment of the present invention.
Fig. 2 is a front view of an adjustable flow oil pump provided by an embodiment of the present invention.
Fig. 3 is a side view of the adjustable flow oil pump provided by the embodiment of the present invention.
Fig. 4 is a cross-sectional view of the first state of the furthest stroke along line a-a of fig. 3.
Fig. 5 is a sectional view of the second state of the farthest stroke taken along line a-a in fig. 3.
Fig. 6 is a cross-sectional view of the first state of shortest stroke along line a-a of fig. 3.
Fig. 7 is a cross-sectional view of the second state of shortest stroke along line a-a of fig. 3.
Fig. 8 is a sectional view of the housing taken along line a-a of fig. 3.
Wherein, in the figures, the respective reference numerals:
10-shell 11-piston cavity 12-adjusting mounting hole
13-oil inlet joint 14-oil outlet joint 20-adjusting rod
21-adjusting part 22-positioning part 23-positioning head
30-piston rod assembly 31-adjusting limit part 32-piston
33-drive connection 34-cam 35-compression spring
111-sealing element 121-positioning groove 221-mounting groove
231-spacing pin 351-washer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in fig. 1-8, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In an embodiment of the present invention, as shown in fig. 1 to 8, an adjustable flow oil pump is provided, which includes a housing 10, a piston rod assembly 30 and an adjusting rod 20:
a piston cavity 11, an adjusting mounting hole 12 and a driving mounting cavity are arranged in the shell 10; the adjusting installation hole 12 is located at one end of the piston cavity 11, the other end of the piston cavity 11 is provided with an oil inlet joint 13 and an oil outlet joint 14, the mouths of two ends of the piston cavity 11 are provided with sealing parts 111, and the driving installation cavity and the piston cavity 11 form a driving clearance hole;
the piston rod assembly 30 is arranged in the piston cavity 11 and comprises a piston 32, a cam 34 and a compression elastic piece 35, the cam 34 is arranged at one end of the piston 32, a cam surface is arranged on the end surface of the cam 34, an adjusting limiting part 31 extends from the end part of the piston 32, the adjusting limiting part 31 is higher than the lowest point of the cam surface, a driving connecting part 33 is arranged on the piston 32 and used for being connected with a driving piece arranged in the driving installation cavity, and the compression elastic piece 35 is arranged in the piston cavity 11 and used for extruding the piston 32 to reset;
the adjusting rod 20 is arranged in the adjusting mounting hole 12, one end of the adjusting rod 20 extends into the piston cavity 11, the compression elastic piece 35 pushes and presses the cam surface of the cam 34 to abut against the outer edge of the adjusting rod 20, an adjusting part 21 extends from the end part of the adjusting rod 20 extending into the piston cavity 11 to limit the adjusting limiting part 31, and the adjusting part 21 and the adjusting rod 20 are eccentrically arranged;
when the driving member drives the piston 32 to rotate, the high point of the cam surface contacts the adjusting rod 20, and forms a stroke of the reciprocating motion of the piston rod 20 when the adjusting limiting part 31 abuts against the surface of the adjusting part 21.
The flow-adjustable oil pump in the utility model comprises a shell 10, an adjusting rod 20 and a piston rod assembly 30, the piston rod assembly 30 is assembled in a piston cavity 11 axially arranged in the shell 10 during assembly, the adjusting rod 20 is movably installed in an adjusting installation hole 12, one end of a piston 32 of the piston rod assembly 30 is positioned at one end of an oil inlet joint 13 and an oil outlet joint 14 of the shell 10, a cavity is formed by the flat side of the piston 32 and the inner space of the piston cavity 11, lubricating oil is extruded into the cavity under the action of negative pressure when the flat side rotates to one side of the oil inlet joint 13, the piston rod assembly 30 rotates to drive the lubricating oil in the cavity to rotate together, the lubricating oil in the cavity is extruded when the flat side rotates to one side of the oil outlet joint 14, the piston rod assembly 30 continuously rotates to repeat the operation, the cam 34 at the other side of the piston rod assembly 30 is abutted against the adjusting rod 20, and an adjusting limiting part 31 positioned at the middle position of the cam 34 is rotated to abut against an adjusting part 21 of the adjusting rod 20, after the adjusting rod 20 rotates to a certain angle, the adjusting part 21 on the adjusting rod 20 contacts with the adjusting limiting part 31, and the adjusting limiting part 31 is pushed to move, so that the lowest end of the cam 34 can not contact with the adjusting rod 20 in the rotating process of the piston rod assembly 30, the stroke of the whole piston rod assembly 30 is shortened, the space of the other end is reduced by pushing the whole piston rod assembly 30 to move, so that the amount of the lubricating oil which gushes in is reduced, when the adjusting rod 20 rotates to the other side, the adjusting limiting part 31 moves towards the adjusting part 21 under the extrusion of the compression elastic piece 35, and continuously abuts against the adjusting part 21, so that the stroke of the whole piston rod assembly 30 is prolonged, the space of the piston 32 end in the rotating process of the piston rod assembly 30 is enlarged, and the amount of the lubricating oil which gushes in is increased. Through the above-mentioned part setting to the stroke size of piston rod assembly 30 is controlled to the butt condition of adjusting piston rod assembly 30 and regulating part 21, changes the size of piston 32 cavity, thereby the oil output of control lubricating oil satisfies the difference and reaches service condition, avoids the waste of resource.
In another embodiment of the present invention, as shown in fig. 1 and fig. 4 to 7, the adjusting portion 21 is provided with a thick step surface and a thin step surface for abutting against the adjusting limiting portion 31, and the thick step surface and the thin step surface are enclosed into a cylinder, the thick step surface rotates with the adjusting limiting portion 31, and will the piston rod assembly 30 pushes towards the other end, and the cylinder makes the switching smooth transition of the adjusting limiting portion 31 between the thick step surface and the thin step surface.
In another embodiment of the present invention, as shown in fig. 1 and fig. 4 to 7, the piston rod assembly 30 is provided with a holding mechanism for holding the cam 34 and the adjusting limiting portion 31 respectively with the adjusting rod 20 and the compression elastic member 35 abutting against each other of the adjusting portion 21, the piston rod assembly 30 is pushed to move toward the adjusting rod 20 under the elastic force of the compression elastic member 35, the adjusting rod 20 simultaneously plays a role of limiting the piston rod assembly 30 to continue moving, and the piston rod assembly 30 always abuts against the adjusting rod 20 under the effect of the compression elastic member 35, so as to ensure the precise adjustment of the adjusting rod 20.
The utility model discloses a further embodiment, as shown in fig. 1 and 4 ~ 7, still be provided with location portion 22, mounting groove 221 and location head 23 on adjusting pole 20, location head 23 with location portion 22 is located respectively adjust the both ends of pole 20, mounting groove 221 is located location portion 22 with between the regulating part 21, the setting of location head 23 is avoided adjusting pole 20 and is inserted the back roll-off, and location portion 22 rotates the regulation to the angle of regulating rod 20 to change the position switching of the thick and thin face of regulating part 21, realize the regulation to piston rod assembly 30 stroke, thereby control lubricating oil output, the clearance between regulation pole 20 and the regulation mounting hole 12 of isolated location portion 22 one side of seal groove.
In another embodiment of the present invention, as shown in fig. 1 and fig. 4 to 7, the end of the adjusting portion 21 is provided with a supporting portion which runs through the mounting hole 12, the supporting portion coincides with the axis of the adjusting rod 20, the diameter of the supporting portion is smaller than the diameter of the adjusting portion 21, the diameter of the supporting portion is set to be smaller than the diameter of the adjusting portion 21, and the collision between the supporting portion and the sound when the highest point of the cam 34 rotates to the position of the supporting portion can be avoided, so as to affect the rotation of the piston 32.
In another embodiment of the present invention, as shown in fig. 1 and fig. 4 to 7, the installation groove 221 is sleeved with a rotary damping member, the rotary damping member is respectively abutted against the inner wall of the installation groove 221 and the inner wall of the installation hole 12, and the isolation between the installation hole 12 and the external space is realized through the setting of the rotary damping member.
In another embodiment of the present invention, as shown in fig. 1 to 2 and fig. 4 to 7, the housing 10 is provided with a positioning groove 121 adapted to the positioning head 23, the positioning head 23 is in the positioning groove 121 for rotation limitation to adjust the rotation angle of the rod 20, the positioning groove 121 is configured to limit the rotation angle of the rod 20, and the thickness of the adjusting portion 21 is controlled to switch the rotation.
As shown in fig. 1 to 2 and fig. 4 to 7, the positioning head 23 is provided with a limit pin 231, one end of the limit pin 231 is immersed in the positioning head 23, and the other end of the limit pin 231 is located outside the positioning head 23 and is used for fixing the adjusting rod 20 and placing the adjusting rod 20 to move, so that the rotation angle of the adjusting rod 20 is limited by the cooperation between the positioning head 23 and the positioning groove 121.
In another embodiment of the present invention, as shown in fig. 1 to 7, the end of the positioning portion 22 is provided with a rotation groove for inserting a wrench, and the rotation groove is arranged to allow the adjusting rod 20 to rotate and adjust only by finding out an insertable tool without a wrench, so that the adjustment is more convenient.
In another embodiment of the present invention, as shown in fig. 4 to 7, the piston cavity 11 runs through the two opposite ends of the housing 10, and the two ends of the piston cavity 11 are both provided with the sealing member 111 for sealing the piston cavity 11, and two openings running through the housing 10 are provided at the two ends of the piston cavity 11, so as to facilitate the installation of the piston rod assembly 30, and then the sealing member 111 is assembled to realize the sealing effect of the piston cavity 11.
A sealing groove and a sealing ring are arranged on the piston rod assembly and close to the piston, and the sealing ring is sleeved on the sealing groove and has a certain sealing effect with the inner wall of the piston cavity in an abutting mode, so that lubricating oil is prevented from flowing out.
In another embodiment of the present invention, as shown in fig. 4 to 7, the piston chamber 11 includes a first chamber and a second chamber, the first cavity is communicated with the oil inlet joint 13 and the oil outlet joint 14, the adjusting mounting hole 12 penetrates through the second cavity, the inner diameter of the second wall body is larger than that of the first cavity body, a butt joint surface is formed at the joint of the first cavity body and the second cavity body, the compression elastic element 35 is sleeved on the piston rod assembly 30, one end of the compression elastic element abuts against the side surface of the driving connection part 33, the other end of the compression elastic piece 35 is abutted against the abutting surface, the arrangement of the staged first cavity and the staged second cavity is that the abutting surface appears at the junction of the two cavities, a washer 351 is provided on the piston rod assembly 30 at the side of the drive connection portion 33 and the abutment face to facilitate the assembly of the compression spring 35.
The utility model discloses an among the other technical scheme, the cam is made by ebonite or brass, when the ebonite can make piston rod assembly pivoted and adjust the wearing and tearing minimizing between the pole, and the practical durability of cam is improved to the brass.
An adjusting mechanism comprises a shell 10, a piston rod, a spring, a cam 34, an adjusting rod 20 and a driving piece; a guide hole, an adjusting mounting hole 12 and a driving mounting hole are formed in the shell; the adjusting mounting hole 12 is positioned at one end of the guide hole, and a driving clearance hole is formed between the driving mounting hole and the guide hole; the piston rod is arranged in the guide hole, the cam 34 is fixedly arranged at one end of the piston rod, the end part of the piston rod extends to form an adjusting limiting part 31, the adjusting limiting part 31 is higher than the lowest point of the surface of the cam 34, the spring is arranged in the guide hole and is used for extruding the piston rod to reset, the piston rod is provided with a driving connecting part 33 which is used for being connected with a driving part arranged in the driving mounting hole, the adjusting rod 20 is arranged in the adjusting mounting hole 12, one end of the adjusting rod 20 extends into the guide hole, the cam surface of the cam 34 is pushed and pressed by the spring to abut against the outer edge of the adjusting rod 20, the end part of the adjusting rod 20 extending into the guide hole extends to form an adjusting part 21 which is used for limiting the adjusting limiting part 31, the adjusting part 21 and the adjusting rod 20 are eccentrically arranged, and the eccentric position of the adjusting part 21 is adjusted, the stroke for reciprocating the piston rod 20 is changed.
The adjusting structure in the utility model comprises a shell 10, a piston rod, a spring, a cam 34, an adjusting rod 20 and a driving piece, wherein the piston rod is arranged in a guide hole arranged in the shell 10 during assembly, the cam 34 is fixedly arranged at one end of the piston rod, an adjusting limit part 31 is arranged at the end, the adjusting limit part 31 is higher than the lowest point of the cam surface and is used for being abutted against an adjusting part arranged on the adjusting rod 20, the moving stroke of the piston rod is limited by the adjusting part 21, the eccentric arrangement is arranged between the adjusting part 21 and the adjusting rod 20, the thin surface at one side of the thick surface of the adjusting part 21 on the axis of the adjusting rod 20 is realized, the maximum stroke of the piston rod which can move when the abutting between the adjusting limit part 31 and the adjusting part 21 is changed by rotating the adjusting rod 20, and the adjusting mechanism also has the function of adjusting the oil output of the adjustable oil pump flow, the lubricating oil demand of the adjusting mechanism under different use conditions is met, and the waste of resources is avoided.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An adjustable flow oil pump, its characterized in that: comprises that
The piston type air conditioner comprises a shell, wherein a piston cavity, an adjusting mounting hole and a driving mounting cavity are formed in the shell; the adjusting mounting hole is positioned at one end of the piston cavity, the other end of the piston cavity is oppositely provided with an oil inlet joint and an oil outlet joint, the mouth parts at two ends of the piston cavity are provided with sealing parts, and the driving mounting cavity and the piston cavity are provided with driving clearance holes;
the piston rod assembly is arranged in the piston cavity and comprises a piston, a cam and a compression elastic piece, the cam is arranged at one end of the piston, a cam surface is arranged on the end surface of the cam, an adjusting limiting part extends from the end part of the piston, the adjusting limiting part is higher than the lowest point of the cam surface, a driving connecting part is arranged on the piston and is used for being connected with a driving piece arranged in the driving installation cavity, and the compression elastic piece is arranged in the piston cavity and is used for extruding the piston to reset;
the adjusting rod is arranged in the adjusting mounting hole, one end of the adjusting rod extends into the piston cavity, the compression elastic piece pushes and presses the cam surface of the cam to be abutted against the outer edge of the adjusting rod, an adjusting part extends from the end part of the adjusting rod extending into the piston cavity and is used for limiting the adjusting limiting part, and the adjusting part and the adjusting rod are eccentrically arranged;
when the driving piece drives the piston to rotate, the high point of the cam surface is in contact with the adjusting rod and abuts against the surface of the adjusting limiting part, and the stroke of the piston rod in reciprocating motion is formed.
2. The adjustable flow oil pump of claim 1, wherein: and a rotary damping piece is arranged in the adjusting mounting hole, and the adjusting rod penetrates through the rotary damping piece.
3. The adjustable flow oil pump of claim 2, wherein: the rotary damping piece is a rubber ring.
4. The adjustable flow oil pump of claim 1, wherein: the end of the adjusting rod is provided with a rotating groove for rotating the adjusting rod.
5. The adjustable flow oil pump according to any one of claims 1 to 4, characterized in that: the end of the adjusting part is provided with a supporting part which penetrates through the adjusting mounting hole, the supporting part is overlapped with the axis of the adjusting rod, and the shaft diameter of the supporting part is smaller than that of the adjusting part.
6. The adjustable flow oil pump of claim 5, wherein: the end of the supporting part is further provided with a positioning part extending out of the adjusting mounting hole, the shaft diameter of the positioning part is larger than that of the supporting part, a pin hole is formed in the positioning part, a limiting pin penetrates through the pin hole, and the limiting pin is used for limiting the adjusting angle of the adjusting rod.
7. The adjustable flow oil pump according to any one of claims 1 to 4, characterized in that: the cam is sleeved on the adjusting limiting part.
8. The adjustable flow oil pump of claim 7, wherein: the end face of the cam is also provided with a clearance groove for avoiding the clearance between the adjusting limiting part and the adjusting part.
9. The adjustable flow oil pump according to any one of claims 1 to 4, characterized in that: the cam is made of hard glue or brass.
10. An adjustment mechanism, characterized by: comprises a shell, a piston rod, a spring, a cam, an adjusting rod and a driving piece; a guide hole, an adjusting mounting hole and a driving mounting hole are formed in the shell; the adjusting mounting hole is positioned at one end of the guide hole, and a driving clearance hole is formed between the driving mounting hole and the guide hole; the piston rod is arranged in the guide hole, the cam is fixedly arranged at one end of the piston rod, an adjusting limit part extends from the end part of the piston rod, the adjusting limit part is higher than the lowest point of the cam surface, the spring is arranged in the guide hole, used for extruding the piston rod to reset, a driving connecting part is arranged on the piston rod and used for being connected with a driving piece arranged in the driving mounting hole, the adjusting rod is arranged in the adjusting mounting hole, one end of the adjusting rod extends into the guide hole, the spring pushes the cam surface of the cam to abut against the outer edge of the adjusting rod, the end part of the adjusting rod extending into the guide hole extends to form an adjusting part, the adjusting part and the adjusting rod are eccentrically arranged, and the stroke of the piston rod in reciprocating motion is changed by adjusting the eccentric position of the adjusting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023126294.2U CN214171924U (en) | 2020-12-22 | 2020-12-22 | Flow-adjustable oil pump and adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023126294.2U CN214171924U (en) | 2020-12-22 | 2020-12-22 | Flow-adjustable oil pump and adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171924U true CN214171924U (en) | 2021-09-10 |
Family
ID=77608284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023126294.2U Active CN214171924U (en) | 2020-12-22 | 2020-12-22 | Flow-adjustable oil pump and adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171924U (en) |
-
2020
- 2020-12-22 CN CN202023126294.2U patent/CN214171924U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214171924U (en) | Flow-adjustable oil pump and adjusting mechanism | |
| CN216044756U (en) | Automatic deceleration oil cylinder structure | |
| CN111980987A (en) | Connecting mechanism of hydraulic cylinder guide sleeve | |
| CN210273746U (en) | Small screw compressor motor | |
| CN113236803B (en) | Antibiotic pneumatic adjustment trip valve | |
| CN109058078B (en) | Compressor and refrigeration plant | |
| CN217976603U (en) | Adjusting mechanism and compressor with same | |
| WO2022073328A1 (en) | Emulsion plunger pump and pump head assembly thereof | |
| CN213016722U (en) | Anti-drip diaphragm pump stable in operation | |
| CN212479545U (en) | Emulsion plunger pump and pump head assembly thereof | |
| CN215256358U (en) | Novel valve tappet | |
| CN201560933U (en) | Self-assignment constant-power variable valve core mechanism | |
| CN210290111U (en) | Manual oil pump valve body and manual oil pump | |
| CN114607723A (en) | High-low speed compression damping adjustable valve system assembly structure | |
| CN114483513A (en) | Single-plunger servo variable pump | |
| CN209781144U (en) | Oblique shaft type plunger hydraulic pump | |
| CN211371896U (en) | Flow-adjustable oil pump and electric saw | |
| CN202001243U (en) | High-pressure constant flow pump of liquid chromatograph | |
| CN214021439U (en) | Fluid micro-jetting device | |
| CN217481517U (en) | Hollow plunger structure | |
| CN218152376U (en) | Electromagnetic valve device capable of being quickly started in pressure reduction mode | |
| CN220850810U (en) | Air flow regulating switch | |
| CN117212157B (en) | Rotary vane vacuum pump capable of automatically lubricating rotary vane | |
| CN219442310U (en) | Precise screw valve capable of rapidly breaking rubber | |
| CN114352750B (en) | Valve needle assembly, electronic expansion valve and refrigeration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |