CN210087581U - Energy storage device of metering pump - Google Patents
Energy storage device of metering pump Download PDFInfo
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- CN210087581U CN210087581U CN201920758529.8U CN201920758529U CN210087581U CN 210087581 U CN210087581 U CN 210087581U CN 201920758529 U CN201920758529 U CN 201920758529U CN 210087581 U CN210087581 U CN 210087581U
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Abstract
The utility model provides a measuring pump energy storage equipment belongs to measuring pump technical field, when having solved current eccentric mechanism and having backed down the push rod and move towards the top dead center, both will overcome system pressure and compress spring to only can back down the technical problem of the energy waste of eccentric shaft after the spring energy storage. The device comprises an eccentric mechanism, an energy storage push rod and an energy storage spring, wherein the energy storage push rod is connected with a rack through the energy storage spring, the energy storage spring can enable the energy storage push rod to be abutted to the eccentric mechanism, so that when the spring moves from a bottom dead center to a top dead center, the elastic force of the energy storage spring can compress the spring together with the eccentric mechanism, and when the spring moves from the top dead center to the bottom dead center, the elastic force of the spring can compress the energy storage spring. The utility model discloses can help motor drive's eccentric mechanism to overcome system's pressure, make it export with littleer moment of torsion to the energy accumulation that will push away eccentric mechanism is the compressive force to energy storage spring, makes the energy obtain effective utilization.
Description
Technical Field
The utility model belongs to the technical field of the measuring pump technique and specifically relates to a measuring pump energy storage device is related to.
Background
The metering pump converts the rotation motion of the motor into linear motion through a mechanical transmission part, so that a push rod driving a diaphragm moves back and forth in a reciprocating mode to complete the reciprocating motion of the diaphragm, and the farthest position of a spring from the rotation center line of an eccentric shaft is generally called an upper dead center, and the nearest position of the spring is called a lower dead center.
At present, a mechanical metering pump is divided into two modes of powerful return and return to a lower dead point through a spring restoring force, the powerful return is to push a diaphragm to the upper dead point and pull the diaphragm to the lower dead point through a crank connecting rod mechanism sleeved on an eccentric shaft, a tension spring is arranged in the metering pump, a push rod is pulled to the direction far away from the eccentric shaft by the spring, at the moment, the spring elasticity is minimum at the upper dead point, and the spring elasticity is maximum at the lower dead point, and the metering pump is a liquid delivery pump with variable flow, and the eccentric distance of the eccentric shaft can be changed to change the displacement by the connecting mode of the powerful return; the common eccentric ejector rod mechanism ejects the push rod to reach an upper dead point through the eccentric shaft, and then pushes the push rod to return to a lower dead point through the restoring force of the spring.
The applicant has found that the prior art has at least the following technical problems: the return force of the spring is returned in a mode that the push rod is close to the eccentric shaft by compressing the spring, so when the eccentric shaft jacks up the push rod to move towards the top dead center, the pressure of liquid in front of a diaphragm of the metering pump, namely the system pressure, needs to be overcome, and the spring is compressed, and only the energy of jacking up the eccentric shaft is wasted after the spring stores energy; according to the metering pump structure, two eccentric shaft load alternation critical points are arranged, one is the position passing through an upper dead point, the other is the position passing through a lower dead point, the elastic force of a spring points to one side of the eccentric shaft, a push rod passes through the upper dead point and the lower dead point, the direction of the spring is changed for the torque on the eccentric shaft, so that the tooth back of the other side of the original tooth surface of the meshing area of the gear mechanism at the transmission end is meshed, and due to the existence of the normal clearance of the gear, abnormal sound exists at the moment, the service life of the gear is shortened, and the transmission precision and the transmission efficiency are reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a measuring pump energy storage equipment to when solving current eccentric mechanism and pushing away the push rod and move towards the top dead center, both overcome system pressure and compression spring, and only can push away the useless technical problem of eccentric shaft after the spring energy storage energy. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides an energy storage device of a metering pump, which comprises an eccentric mechanism, an energy storage push rod and an energy storage spring, wherein the eccentric mechanism is abutted against one end of a push rod, the spring is sleeved on the push rod, the other end of the push rod is connected with a diaphragm, and the eccentric mechanism can drive the diaphragm to move through the push rod and the spring; the energy storage push rod is connected with the rack through the energy storage spring, the energy storage spring can enable the energy storage push rod to abut against the eccentric mechanism, so that when the spring moves from a bottom dead center to a top dead center, the elastic force of the energy storage spring and the eccentric mechanism can compress the spring together, and when the spring moves from the top dead center to the bottom dead center, the elastic force of the spring and the eccentric mechanism can compress the energy storage spring together.
Preferably, the eccentric mechanism comprises an eccentric shaft, the push rod and the energy storage push rod are abutted against the eccentric shaft, and a first offset angle is arranged between the central line of the energy storage spring and the central line of the push rod, so that the torque generated by the energy storage spring on the eccentric mechanism is larger than the torque generated by the spring.
Preferably, the first offset angle is 10 ° to 15 °.
Preferably, the eccentric mechanism comprises an eccentric shaft abutted against the push rod and an energy storage equivalent eccentric shaft abutted against the energy storage push rod, the eccentric shaft and the energy storage equivalent eccentric shaft are fixedly connected along the axial direction, the rotation centers of the eccentric shaft and the energy storage equivalent eccentric shaft are the same, a second offset angle exists between a connecting line of the circle center of the eccentric shaft and the rotation center of the eccentric shaft and a connecting line of the circle center of the energy storage equivalent eccentric shaft and the rotation center of the eccentric shaft, and the central line of the energy storage push rod and the central line of the push rod are arranged in parallel, so that the torque generated by the energy storage spring on the eccentric mechanism is larger than the torque generated by the spring.
Preferably, the second offset angle is 10 ° to 45 °.
Preferably, the energy storage push rod comprises a first guide portion and an abutting portion, the abutting portion abuts against the eccentric mechanism, and the first guide portion is matched with a second guide portion on the rack so that the energy storage spring linearly moves along the axis direction.
Preferably, the first guide portion and the abutting portion form a first groove, the second guide portion and the rack form a second groove, the first guide portion and the second guide portion are connected in a sliding mode, an opening of the first groove faces the bottom of the second groove, and the energy storage spring is arranged in the first groove and abuts against the abutting portion and the bottom of the second groove, so that the energy storage push rod can move in the second groove in a reciprocating mode through the energy storage spring.
Preferably, the first guide portion and the abutting portion form a T-shaped structure, the second guide portion and the frame form a groove structure, the first guide portion is disposed in the groove, the first guide portion is slidably connected to the second guide portion, and the energy storage spring is sleeved outside the first guide portion and the second guide portion and abuts against the root portions of the abutting portion and the second guide mechanism, so that the energy storage push rod can move in the second groove in a reciprocating manner through the energy storage spring.
Preferably, one end of the energy storage push rod, which is abutted to the eccentric mechanism, is a plane.
Preferably, the energy storage spring is fixedly connected with the frame.
The utility model relates to a measuring pump energy storage equipment compares with prior art, has following beneficial effect:
the utility model provides a pair of metering pump energy storage equipment, the energy storage push rod passes through energy storage spring and eccentric mechanism looks butt, when the spring is removed by bottom dead center top dead center, energy storage spring's elastic force can assist eccentric mechanism to compress the spring, and help motor drive's eccentric mechanism to overcome system's pressure, make the motor can be with littleer moment of torsion output, and simultaneously, when the spring is removed by top dead center bottom dead center, the elastic force of spring can compress energy storage spring, the energy accumulation that will push open eccentric mechanism is the compressive force to energy storage spring, in order that auxiliary motor drives eccentric mechanism and rotates in the motion cycle that follows, make the energy obtain effective utilization.
Drawings
In order to illustrate the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic operation diagram of embodiment 1 of the present invention;
fig. 3 is a displacement time load curve diagram of embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 5 is a schematic operation diagram of embodiment 2 of the present invention;
fig. 6 is a displacement time load curve diagram of embodiment 2 of the present invention;
fig. 7 is a schematic view of the energy storage push rod of the present invention with a groove structure;
fig. 8 is a schematic view of the energy storage push rod of the present invention having a T-shaped structure;
in the figure 101, a diaphragm; 102. a push rod; 103. a frame; 104. a spring; 105. an eccentric shaft; 106. an energy storage push rod; 107. an energy storage spring; 108. an abutting portion; 109. a first guide portion; 110. a second guide portion; 201. an energy storage equivalent eccentric shaft; d1A first offset angle; d2A second offset angle; e. eccentricity of the eccentric shaft; h. the energy storage is equivalent to the eccentric shaft eccentricity; o is1An eccentric shaft rotation center; o is2The center of the eccentric shaft; o is3The energy storage is equivalent to the circle center of the eccentric shaft; t, time; t, complete cycle of eccentric motion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 3, the utility model provides an energy storage device for a metering pump, which comprises an eccentric mechanism, an energy storage push rod 106 and an energy storage spring 107, wherein the eccentric mechanism is connected with one end of a push rod in a propping way, the spring 104 is sleeved on the push rod, the other end of the push rod is connected with a diaphragm 101, and the eccentric mechanism can drive the diaphragm 101 to move through the push rod and the spring 104; the energy storage push rod 106 is arranged at the opposite side of the push rod 102, the energy storage push rod 106 is connected with the frame 103 through an energy storage spring 107, the energy storage spring 107 can enable the energy storage push rod 106 to abut against the eccentric mechanism, so that when the spring 104 moves from the bottom dead center to the top dead center, the elastic force of the energy storage spring 107 and the eccentric mechanism can compress the spring 104 together, and when the spring 104 moves from the top dead center to the bottom dead center, the elastic force of the spring 104 can compress the energy storage spring 107.
The utility model discloses an energy storage push rod 106 sets up and indicates to use the water flat line as the boundary in the offside of push rod 102, the two sets up respectively in the both sides of water flat line, it is concrete, but energy storage push rod 106's central line and push rod 102's central line parallel arrangement, there is also certain angle, as long as can guarantee that spring 104 is by the bottom dead center during the top dead center removes, energy storage spring 107's elastic force can compress spring 104 together with eccentric mechanism, and when spring 104 was removed by top dead center bottom dead center, spring 104's elastic force can compress energy storage spring 107 can.
The utility model discloses pass through energy storage spring 107 and eccentric mechanism looks butt with energy storage push rod 106, when spring 104 was removed by bottom dead center top dead center, energy storage spring 107's elastic force can assist eccentric mechanism to compress spring 104, and help motor drive's eccentric mechanism to overcome system's pressure, make the motor can be with littleer moment of torsion output, and simultaneously, when spring 104 was removed by top dead center bottom dead center, spring 104's elastic force can compress energy storage spring 107, the energy accumulation that will push away eccentric mechanism is the compressive force to energy storage spring 107, in order that auxiliary motor drives eccentric mechanism and rotates in the motion cycle that follows, make the energy obtain effective utilization.
The utility model is suitable for a compact structure's measuring pump is mostly the mechanical diaphragm type measuring pump of the little discharge capacity of little pressure to this kind of measuring pump, and the operational characteristic that the diaphragm pump diaphragm is the biggest is that bottom dead center diaphragm 101 center can be equivalent is effective circle area part minimum, and pressure on the cavity internal pressure turns into push rod 102 is minimum, and along with diaphragm 101 top dead center motion, the diameter of equivalent circle rises steeply on the diaphragm 101, and the technical scheme of this embodiment is for the pure PTFE diaphragm to integrated into one piece.
As an alternative embodiment, the eccentric mechanism comprises an eccentric shaft 105, a push rod 102 and an energy storage push rod 106 which are all abutted against the outer wall of the eccentric shaft 105, and an energy storage spring 107 is arranged at the center due to the lag angle of a one-way valve of the metering pumpThe arrangement of the line parallel to the central line of the push rod 102 will slow the pressure rise of the chamber, and the characteristic of the eccentric mechanism is known, mainly considering the load state at the bottom dead center, so a first offset angle D is arranged between the central line of the energy storage spring 107 and the central line of the push rod 1021The angle is small and is 10-15 degrees, so that the torque generated by the energy storage spring 107 on the eccentric mechanism is larger than the torque generated by the spring 104, and the aims of storing energy and outputting energy maximally and eliminating maximum noise at a lower dead point are fulfilled.
Specifically, the energy storage spring 107 can assist the eccentric mechanism to compress the spring 104, and can accumulate the energy of the push rod 102 pushing the eccentric mechanism, so that the direction of the load on the bottom dead center can be unchanged, and only the magnitude of the load can be changed as long as the torque generated by the energy storage spring 107 on the eccentric mechanism is greater than the torque generated by the spring 104, thereby avoiding the meshing of the tooth backs of the transmission gears, avoiding the generation of abnormal sound, prolonging the service life of the gears, and improving the transmission precision and the transmission efficiency. Among them, the load condition reason at the bottom dead center is mainly considered as: the metering pump structure has two eccentric shaft load alternation critical points, one is the position through the top dead center, and the other is the position through the bottom dead center, and the characteristics of the diaphragm pump can be known as follows: the effective diameter of the diaphragm at the initial position is small, and the force acting on the push rod 102 is smaller, so that the pressure in the pump head rises slowly at the moment, the elastic force of the spring 104 at the longest position is the smallest, and the influence of the top dead center is small; the force arm of the eccentric mechanism is smaller after passing through the lower dead point, so that larger load can be driven, the alternating range on the lower dead point is large, the load state on the lower dead point with the largest alternating range is changed into the state with the unchanged direction and the changed size in a mode of the energy storage spring 107, the noise generated by the gear method phase gap of the driving end of the metering pump is eliminated, the abrasion is reduced, and the performance of the whole device is improved. Within a certain angle eccentric shaft 105 carries the load comprising the pressure in the pump head, spring 104 and energy storing spring 107.
Because eccentric shaft 105 is in a positive eccentric cam structure, when eccentric shaft 105 rotates at a constant speed, the relationship between the displacement of push rod 102 and time is sinusoidal, and energy storage push rod 106 is also against the positive eccentric cam structure, so thatThe compression of the stored energy spring 107 is also sinusoidal due to the first offset angle D between the centerline of the pushrod 102 and the stored energy pushrod 1061The occupied time T is D1The/2 pi, so the energy storage spring 107 can store energy, and the two curves are in an interlaced state.
As shown in figure 1, the push rod 102 is reciprocated along the guide line of the frame 103, the eccentric shaft 105 is fixed on the frame 103 and performs a rotary motion along a certain eccentricity e, the eccentric shaft 105 abuts against the push rod 102 and makes it rotate clockwise at the top dead center, the eccentric shaft rotates past the longest position of the energy storage spring 107, the energy storage spring 107 is pressed at the next moment until the bottom dead center, the energy storage spring 107 stores energy, and after passing the bottom dead center, the eccentric shaft begins to perform positive work, when the eccentric center O of the eccentric shaft is rotated2And a center of revolution O1When the line is perpendicular to the centerline of the energy storage spring 107, the torque generated by the load and push rod 102 at the eccentric shaft 105 is near the maximum value, and at this time, the torque is also near the maximum output torque of the energy storage spring 107, so that the efficiency is high, because the torque of the energy storage spring 107 offsets the torque of a part of the load, the motor can pass through with smaller output torque at this moment, and reaches the top dead center, and a complete cycle is completed. The rotation direction of eccentric shaft 105 is: top dead center-least compressed by the charging spring 107-bottom dead center-most compressed by the charging spring 107-top dead center.
Preferably, the energy storage push rod 106 comprises a first guide portion 109 and an abutting portion 108 which are connected, the abutting portion 108 abuts against the eccentric mechanism, and the first guide portion 109 is arranged in cooperation with a second guide portion 110 on the frame 103, so that the energy storage spring 107 linearly moves along the axial direction, and instability of the energy storage spring 107 is prevented.
The energy storage spring 107 is fixedly connected with the frame 103, and the fixing modes are divided into two modes, wherein one mode is fixed through a plurality of groups of screws, so that the structure is simple and the operation is convenient; the other type is that a threaded hole is formed in the frame 103, the energy storage spring 107 is directly screwed in, the structure can be used for finely adjusting the energy storage spring 107, and the fixation is more accurate.
As an alternative embodiment, as shown in fig. 7, the first guide portion 109 and the abutting portion 108 form a first groove, the second guide portion 110 and the frame 103 form a second groove, the first guide portion 109 and the second guide portion 110 are slidably connected, an opening of the first groove faces a bottom of the second groove, and the energy storage spring 107 is disposed in the first groove and abuts against the abutting portion 108 and the bottom of the second groove, so that the energy storage push rod 106 reciprocates in the second groove through the energy storage spring 107.
Specifically, the energy storage push rod 106 and the frame 103 are both groove structures, and the openings of the energy storage push rod 106 and the frame 103 are arranged oppositely, the first guide part 109 and the second guide part 110 can slide relatively and are lubricated by lubricating oil, the energy storage spring 107 is arranged in the first groove and is abutted between the energy storage push rod 106 and the frame 103, the energy storage push rod 106 is arranged in the second groove, so that when the energy storage push rod 106 is abutted with the eccentric shaft 105, the energy storage spring 107 can be compressed or rebounded.
As an alternative embodiment, as shown in fig. 8, the first guiding portion 109 and the abutting portion 108 form a T-shaped structure, the second guiding portion 110 and the frame 103 form a groove structure, the first guiding portion 109 is disposed in the groove, and the first guiding portion 109 and the second guiding portion 110 are slidably connected, and the energy storage spring 107 is sleeved outside the first guiding portion 109 and the second guiding portion 110 and abuts against the abutting portion 108 and the root portion of the second guiding mechanism, so that the energy storage push rod 106 is reciprocated in the second groove by the energy storage spring 107.
Specifically, the second guiding portion 110 and the frame 103 form a groove structure with an upward opening, the first guiding portion 109 is disposed in the groove, and the energy storage spring 107 is sleeved between the abutting surface of the energy storage push rod 106 and the root of the frame 103, so that when the energy storage push rod 106 abuts against the eccentric shaft 105, the energy storage spring 107 can be compressed or rebounded.
Preferably, the end of the energy storage push rod 106 abutting against the eccentric mechanism is a plane.
Energy storage push rod 106 is the plane with eccentric mechanism's contact surface, moreover, the steam generator is simple in structure, and stability is good, and the processing of being convenient for, and when push rod 102 offseted with eccentric mechanism, the contact surface is a line, because this line can change along with eccentric removal, it is big eccentric, this line just is big at push rod 102 planar motion's scope, so planar structure's eccentric adaptability is better, big or small off-centre all can be realized through a push rod 102 promptly, and spherical face can produce radial force, this power can increase wearing and tearing, make energy storage spring 107 unstable.
Example 2
The present embodiment 2 is different from embodiment 1 in that: the eccentric mechanism comprises eccentric shaft 105 and energy storage equivalent eccentric shaft 201 with a second offset angle D between the two2The centerline of the stored energy pushrod 106 is aligned parallel to the centerline of the pushrod 102.
As an alternative embodiment, as shown in fig. 4 to 6, the eccentric mechanism includes an eccentric shaft 105 abutting against the push rod 102 and an energy storage equivalent eccentric shaft 201 abutting against the energy storage push rod 106, the eccentric shaft 105 and the energy storage equivalent eccentric shaft 201 are fixedly connected along the axial direction and have the same rotation center, and the center O of the eccentric shaft is the same2And its center of rotation O1The connecting line of (A) and the energy storage equivalent eccentric shaft circle center O3And its center of rotation O1Has a second offset angle D2And the centerline of the charging pushrod 106 is parallel to the centerline of the pushrod 102 so that the charging spring 107 generates a larger torque on the over-center mechanism than the spring 104.
In particular, eccentric shaft 105 and eccentric equivalent shaft 201 are rigidly connected in axial direction, so that they maintain the same angular velocity at all times, with a second offset angle D existing between them in radial direction2And, a second offset angle D2Is 10-45 degrees.
As shown in fig. 4, the push rod 102 reciprocates linearly along the guide of the frame 103, the eccentric shaft 105 is fixed on the frame 103 and rotates along a certain eccentricity h, the eccentric shaft 105 abuts against the push rod 102 and makes it rotate clockwise at the top dead center, the eccentric shaft rotates past the longest position of the energy storage spring 107, the energy storage spring 107 is pressed at the next moment until the bottom dead center, the energy storage spring 107 stores energy, after the bottom dead center, the energy storage spring 107 starts to do positive work, when the connecting line of the center of the energy storage equivalent eccentric shaft and the center of the rotation center thereof is perpendicular to the center line of the energy storage spring 107, the torque generated by the load and the push rod 102 at the eccentric shaft 105 is the largest, at the moment, the motor can pass through with smaller output torque and reach. The rotation direction of eccentric shaft 105 is: top dead center-least compressed by the charging spring 107-bottom dead center-most compressed by the charging spring 107-top dead center.
The embodiment is suitable for the situation that the box body for bearing the eccentric part is large and needs a certain space, and the cost is higher if the box body is realized according to the offset angle in the embodiment 1.
The utility model discloses a measuring pump energy storage equipment can utilize invalid rotation time in invalid motor rotation period, make the motor can drive bigger load in the time of full rated torque, and keep a more stable duty cycle, it is extravagant at the second half time of doing positive work to have solved measuring pump motor half time, and because spring 104 elasticity produces the produced "back of the tooth" meshing problem of moment of alternation on eccentric shaft 105, the noise that measuring pump drive end gear method looks clearance produced at this moment has been eliminated, wear and tear has been reduced, the performance of whole equipment has been promoted.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A metering pump energy storage device is characterized by comprising an eccentric mechanism, an energy storage push rod (106) and an energy storage spring (107), wherein,
the eccentric mechanism is abutted against one end of a push rod, a spring (104) is sleeved on the push rod, the other end of the push rod is connected with a diaphragm (101), and the eccentric mechanism can drive the diaphragm (101) to move through the push rod and the spring (104);
the energy storage push rod (106) is connected with the rack (103) through the energy storage spring (107), the energy storage push rod (106) can be abutted to the eccentric mechanism through the energy storage spring (107), so that when the spring (104) moves from a bottom dead center to a top dead center, the spring (104) can be compressed by the elastic force of the energy storage spring (107) and the eccentric mechanism together, and when the spring (104) moves from the top dead center to the bottom dead center, the energy storage spring (107) can be compressed by the elastic force of the spring (104) and the eccentric mechanism together.
2. A dosing pump energy storage device according to claim 1, characterized in that the eccentric mechanism comprises an eccentric shaft (105), the push rod (102) and the energy storage push rod (106) are both in abutment with the eccentric shaft (105), and a first offset angle (D) is provided between the centre line of the energy storage spring (107) and the centre line of the push rod (102)1) So that the torque generated by the energy storage spring (107) on the eccentric mechanism is greater than the torque generated by the spring (104).
3. Metering pump energy storage device according to claim 2, characterized in that the first offset angle (D)1) Is 10-15 degrees.
4. A metering pump energy storage device according to claim 1, characterized in that the eccentric mechanism comprises an eccentric shaft (105) abutting against the push rod (102) and an energy storage equivalent eccentric shaft (201) abutting against the energy storage push rod (106), the eccentric shaft (105) and the energy storage equivalent eccentric shaft (201) are fixedly connected in the axial direction and have the same centre of rotation, and the eccentric shaft has a center (O)2) And its centre of rotation (O)1) Is connected with the circle center (O) of the energy storage equivalent eccentric shaft3) And its centre of rotation (O)1) Has a second offset angle (D)2) And the central line of the energy storage push rod (106) is arranged in parallel with the central line of the push rod (102) so that the torque generated by the energy storage spring (107) on the eccentric mechanism is larger than the torque generated by the spring (104).
5. Metering pump energy storage device according to claim 4, characterized in that the second offset angle (D)2) Is 10-45 degrees.
6. A metering pump energy storage device according to claim 1, characterized in that the energy storage push rod (106) comprises a first guide portion (109) and an abutting portion (108), the abutting portion (108) abuts against the eccentric mechanism, and the first guide portion (109) is matched with a second guide portion (110) on the frame (103) so as to enable the energy storage spring (107) to move linearly along the axial direction.
7. A metering pump energy storage device according to claim 6, characterized in that the first guide portion (109) and the abutting portion (108) form a first groove, the second guide portion (110) and the frame (103) form a second groove, the first guide portion (109) and the second guide portion (110) are connected in a sliding manner, the opening of the first groove faces the bottom of the second groove, and the energy storage spring (107) is arranged in the first groove and abuts against the abutting portion (108) and the bottom of the second groove, so that the energy storage push rod (106) can move back and forth in the second groove through the energy storage spring (104).
8. A metering pump energy storage device according to claim 6, characterized in that the first guide portion (109) and the abutting portion (108) form a T-shaped structure, the second guide portion (110) and the frame (103) form a groove structure, the first guide portion (109) is disposed in the groove, the first guide portion (109) and the second guide portion (110) are slidably connected, and the energy storage spring (107) is sleeved outside the first guide portion (109) and the second guide portion (110) and abuts against the root portions of the abutting portion (108) and the second guide portion (110), so that the energy storage push rod (106) can move back and forth along the frame through the energy storage spring (107).
9. A metering pump energy storage device according to claim 1, characterized in that the end of the energy storage push rod (106) abutting against the eccentric mechanism is a plane.
10. Metering pump energy storage device according to claim 1, characterized in that the energy storage spring (107) is fixedly connected to the machine frame (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758529.8U CN210087581U (en) | 2019-05-24 | 2019-05-24 | Energy storage device of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758529.8U CN210087581U (en) | 2019-05-24 | 2019-05-24 | Energy storage device of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087581U true CN210087581U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920758529.8U Active CN210087581U (en) | 2019-05-24 | 2019-05-24 | Energy storage device of metering pump |
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| Country | Link |
|---|---|
| CN (1) | CN210087581U (en) |
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2019
- 2019-05-24 CN CN201920758529.8U patent/CN210087581U/en active Active
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